Home

Fluke A20M-AF Computer Monitor User Manual

1. Purpose To allow the host PC to communicate with a device connected to the RPM4 COM2 port Classic Arguments XX The string to send out of the RPM4 COM2 port It must be less than 40 characters long Remarks The RPM4 COM2 port can be used to communicate to another RS232 device such as another RPM4 This allows the user to use a single COM port or IEEE 488 port on the host computer to communicate with the RPM4 and another RS232 device A carriage return and a line feed lt CR gt lt LF gt are added to the string After this program message is issued the RPM4 will reply back every string received by the RPM4 COM2 port that is terminated with a carriage return Line feeds are discarded This will discontinue when the next query is sent to the RPM4 There is no other reply from this program message Prior to using this program message you must ensure that the RPM4 COM2 port is correctly set up to communicate with the device on COM2 Refer to the COM2 program message Example Sent EVER classic Reply DH INSTRUMENTS INC RPM4 us A1000 A0015 Ver2 00 This example assumes that a second RPM4 s COM port is connected to the RPM4 port This example gets the version of the second RPM4 See Also COM2 3 5 2 ABORT Purpose Cancels any pending data requests by the PR PRR RATE SR or CONT commands Command ABORT Classic ABORT Remarks This pro
2. Optional Suffix The active Q RPT is assumed if no suffix is given 47 Specify the Hi Q RPT 2 Specify the Lo Q RPT Arguments Unit The text corresponding to the pressure unit of measure A unit mode character can optionally be added to the end of the units ref a for absolute measurement mode g for gauge measurement mode The optional unit reference temperature only if the unit is InWa Remarks This program message determines what unit of measure and what measurement mode is used to display pressure values Refer to Table 7 for a detailed list of the units available and their labels If the unit text is not followed by an explicit mode character a g then gauge mode is assumed There can be a space between the unit text and the a g If the unit specified is InWa an optional second argument can be set The ref can be 4 20 or 60 corresponding to InWa at 4 20 or 60 F If this second argument is not given when the unit is InWa then the reference temperature is assumed to be 20 C This can also be added directly onto the end of the Unit argument if desired The fifth character of the reply is always a for absolute mode or g for gauge negative gauge mode White spaces precede this character if needed The temperature reference is added to the reply only if the unit is InWa The reply includes the measurement mode character in the fifth p
3. GPIB Purpose Read or set the GPIB interface address Command GPIB ada Guery GPIB Classic GPIB Defaults GPIB 10 Arguments Addr The address of the IEEE 488 GPIB interface 1 to 30 Remarks The GPIB address is changed following the reply of this command Each device on a GPIB interface bus requires a unique address Example sent GPIB 21 enhanced Query reply 21 No reply if GPIB 488 Example sent GPIB 21 enhanced Query reply 21 Example Sent GPIB 21 classic Reply 21 Errors ERR 6 The argument is not within given limits See Also 3 5 2 2 HEAD Purpose Read or set the fluid head settings Command HEAD height units fluid Query HEAD Classic HEAD height units fluid HEAD Defaults HEAD 0 cm N2 Arguments height The height of the test in relation to the RPM4 The value is positive if the test is above the RPM4 or negative if below the RPM4 The value can be between 9999 and 9999 Setting the value to 0 disables the head correction units The height units This must be in or cm gas The fluid type This must be N2 Air He Oil H20 or User Remarks The RPM4 can make a fluid head correction to allow it to display the pressure at a level other than the reference level of the RPM4 Example Cmd sent HEAD 10 in N2
4. 120 Table 24 RPMA Illustrated Parts Breakdown of Internal Assembly see Figure 18 121 Table 25 RPMA Illustrated Parts Breakdown of Internal Assembly see Figure 19 122 Table 26 RPMA Illustrated Parts Breakdown of Electronic Chassis see Figure 20 123 Table 27 HPMS Assembly Illustrated Parts Breakdown see Figure 21 and 22 125 Table 28 Troubleshooting guide ssssssssssssseseseeene enne enne enters nnn sinn 129 Table 29 Pressure unit of measure conversion 133 Table 30 DHI Authorized Service Providers nooo o enne ens 135 Page V 2007 DH Instruments a Fluke Company RPM4 HPMS A70M A20M AF OPERATION AND MAINTENANCE MANUAL DH Instruments F U RES A Fluke Company Figure 1 Figure 2 Figure 3 Figure 4 Figure 5 Figure 6 Figure 7 Figure 8 Figure 9 Figure 10 Figure 11 Figure 12 Figure 13 Figure 14 Figure 15 Figure 16 Figure 17 Figure 18 Figure 19 Figure 20 Figure 21 Figure 22 2007 DH Typical PGC 10000 AF installation 4 22 nn 7 RPM4 HPMS front view 8 o A 9 RPM4 HPMS s
5. aa 56 Table o Security eVe S tik A tia uer te ia sedate ody 64 Table 7 UNIT function available units of measure nnne nennen 66 Table 8 READRT display update 68 Table 9 Reset Sets Hen LH dde eH eA da eoe IN dee e 70 Table 10 Reset dede drag tH dod gat AT 71 Table ln Beset AlL etate la 71 Table 12 1 pin designations and connections 1 0 none 73 Table 13 COM2 DB 9F pin designations oooooonnosoo nn nn 74 Table 14 Program message ST eR EO ee HD ok 77 Table 15 Error s and descriptionS oroooornnnovovn no o 78 Table 16 8 Bit status byte register HEHE 98 Table 17 8 bit standard event 99 Table 18 8 bit ready status 100 Table 19 Program message lISt iier doe nl 101 Table 20 Calibration point sequence for 20 and A70M 404 110 Table 21 RPMA Front Panel Illustrated Parts Breakdown see Figure 15 118 Table 22 RPM Rear Panel Illustrated Parts Breakdown see Figure 16 119 Table 23 RPMA Illustrated Parts Breakdown of Display Assembly see Figure 17
6. PRETO NTN 97 4 5 2 STATUS BYTE REGISTER 98 4 5 3 STANDARD EVENT REGISTER ccccssssssssssssesevsesseeseseseeseseessesaeseesevseeesaesaeseesesaesaesaeseesevaessesaeseesesaesneas 99 4 5 4 READY STATUS REGISTER 0 ccccccssssssssssesssesseseseesessecsesseseesessesaesaeseeseesevsesaesaeseeesaesaesaeseesevsevsenenaevanse 100 4 6 IEEE STD 488 2 COMMON AND STATUS PROGRAM MESSAGES 101 4 6 1 PROGRAM MESSAGE DESCRIPTIONS eiiis see see seien stesse tna nn 101 MAINTENANCE ADJUSTMENTS AND CALIBRATION 105 5 1 OVERVIEW a 105 5 2 RPM4 MAINTENANCE ohna 105 5 2 1 AUTOZERO 105 5 2 1 1 GAUGE MODE AUTOZERO ett tpe dn date cutest Ba 105 5 2 1 2 ABSOLUTE MODE AUTOZERO ttftt situ nete 106 5 2 2 ADJUSTMENT OF THE ON BOARD 1 1 2 ans 106 5 3 2 0 rise 107 5 3 1 PRINCIPLE E k KA 107 5 3 1 1 can ote ce turri m n ree eee n erat e a 107 5 3 1 2 AS RECEIVED AND AS LEFT ence en nu 108 5 3 2 EQUIPMENT REQUIRE Dv
7. 108 5 3 3 SET UP AND PREPARATION 2 2 2 RH RR HRE ER sa 109 5 3 4 RECOMMENDED CALIBRATION POINT SEQUENCE s nn 110 5 3 5 TURNING OFF ABSOLUTE MODE CAPABILITY FOR Q RPT 1 110 5 3 6 Q RPT CALIBRATION USING CALTOOL FOR Q RPTS 111 5 3 7 EDITING AND VIEWING Q RPT CALIBRATION INFORMATION 1 111 5 3 8 Q RPT ADJUSTMENT WITHOUT CALTOOL FOR G RPTS 112 5 4 REPAIR viuo e D agone re EF EE napa EE SUAE UC EY X ER TREES E REESE FR RR 114 5 4 1 REMOVING FROM HPMS ressent HR HRE 114 5 4 2 OPENING AND CLOSING THE RPM4 115 5 4 3 RELOADING EMBEDDED SOFTWARE INTO FLASH MEMORY eese 115 5 4 4 SUBASSEMBLY DESCRIPTION AND 2 2 ns s enter 116 5 4 4 1 MICRO 107 1E 1D ene HERE 116 5 4 4 2 POWER SUPPLY MODULE viva 117 5 4 4 3 DRIVER BOARD itis eaS 117 5 4 4 4 ON BOARD BAROMETER 444044 40 00 thin insit sinite eta
8. DH Instruments A Fluke Company RPM4 HPMS A70M A20M AF Reference Pressure Monitor with High Pressure Mounting System Operation and Maintenance Manual NSN 6685 01 529 6990 RN 2 of 3 2007 DH Instruments a Fluke Company RPM4 HPMS A70M A20M AF OPERATION AND MAINTENANCE MANUAL High pressure liquids and gases are potentially hazardous Energy stored in these liquids and gases can be released unexpectedly and with extreme force High pressure systems should be assembled and operated only by personnel who have been instructed in proper safety practices This instrument is not to be operated in any other manner than that specified by the manufacturer 2007 DH Instruments a Fluke Company All rights reserved Information in this document is subject to change without notice No part of this document may be reproduced or transmitted in any form or by any means electronic or mechanical for any purpose without the express written permission of DH Instruments a Fluke Company 4765 East Beautiful Lane Phoenix AZ 85044 5318 USA DH Instruments makes sincere efforts to ensure accuracy and quality of its published materials however no warranty expressed or implied is provided DH Instruments disclaims any responsibility or liability for any direct or indirect damages resulting from the use of the information in this manual or products described in it Mention of any product or brand does not constitute an endorsement by D
9. The active Q RPT is assumed if no suffix is given 47 Specify the Hi Q RPT 2 Specify the Lo Q RPT Arguments limit The upper limit pressure in the specified Q RPT s current pressure unit and measurement mode If the unit is meters this value is be interpreted in kPa If the unit is feet this value is be interpreted in psi Remarks The RPM4 has an upper limit for each range and for each measurement mode gauge absolute If the pressure does exceed the upper limit the pressure display flashes This feature should always be used to prevent accidental over pressure of a device under test Example sent UL 1000 enhanced Query reply 1000 00 kPa a reply if GPIB 488 Example sent UL 1000 enhanced Query reply 1000 00 kPa a Example Sent UL 1000 classic Reply 1000 00 kPa a Errors ERR 6 The limi argument is out of range See Also 3 4 4 Page 95 2007 DH Instruments a Fluke Company RPM4 HPMS A70M A20M AF OPERATION AND MAINTENANCE MANUAL UNITn Purpose Read or set the pressure unit of measure unit and measurement mode Command UNITn unit ref UNITA unitn re UNITn unitg ref Query UNITN unita ref UNIT unitd ref UNIT Classic UNITn unit ref UNITn unitn ref UNIT n unitg ref UNITn unita ref UNIT n unitd ref
10. 3 5 9 2 lt 2 UNITS 3 5 9 3 lt 3ATEST gt 3 5 9 4 4 CAL iris 3 5 9 5 S DAL EE OLOVO end dnbie t eee he ad ATT 2007 DH Instruments a Fluke Company Page II TABLE OF CONTENTS REMOTE OPERATION 405550650 koi a a lon 73 4 1 OVERVIEW a 73 4 2 INTERFAGING e 73 4 2 1 15232 INTERFACE E 73 4 2 1 1 COM eee 2 73 4 2 1 2 s rn 222 74 4 2 1 3 OM c Peo 74 43 PROGRAMMING FORMATS arre cceccessesestienconcetstensccnveueccsneectecvevausccturvecdenuceeesscunauesteneecaues 74 4 3 1 CLASSIC PROGRAM MESSAGE FORMAT 4 0 11 nen 75 4 3 2 ENHANCED PROGRAM MESSAGE FORMAT 1 75 4 3 2 1 USING COMMAND TYPE COMMANDS 4879 4 3 2 2 USING QUERY TYPE 2 76 44 COMMANDS eerte tact u 7 4 4 1 PROGRAMMING MESSAGES T7 4 4 2 ERROR 5 1 78 4 4 3 PROGRAM MESSAGE DESCRIPTION OVERVIEW 79 4 4 4 PROGRAM MESSAGE DESCRIPTIONS B 80 4 5 STATUS REPORTING SYSTEM eruere nho i 97 4 5 1 ERROR QUEUE
11. Open the RPM4 HPMS TEST port to atmosphere Put the valve knob in the HPMS front panel into the Lo Q RPT Active position This opens the Lo and Hi Q RPTs to the HPMS TEST port Use RANGE see Section 3 3 1 to select the Lo Q RPT Press MODE on the RPMA and select gauge If desired change the pressure unit of measure using UNIT see Section 3 3 3 The value indicated should be near zero Press AutoZ This runs AutoZ to zero the Q RPT reading see Section 3 3 9 1 Upon return to the main run screen observe that the indication of measured pressure has zeroed Use RANGE to select the Hi Q RPT and repeat the zeroing process If the display fails to zero properly for either Q RPT RPM4 may need repair Page 13 2007 DH Instruments a Fluke Company RPM4 HPMS A70M A20M AF OPERATION AND MAINTENANCE MANUAL s It is normal for 4 to indicate a value other than zero when vented when gauge mode is first entered or ranges changed especially if AutoZ is OFF RPM4 has been OFF for some time or its location has changed 2 6 SHORT TERM STORAGE The following is recommended for short term storage of RPM4 HPMS e Vent the RPM4 HPMS TEST port e Switch the RPM4 power OFF 2 7 LONG TERM STORAGE AND OR PREPARATION FOR SHIPPING The following is recommended for long term storage and or shipping of RPM4 HPMS e Plug the HPMS TEST port e Place the RPM4 HPMS in a plastic bag e Place the RPM4 HPMS in the custom shipping
12. RES 01 classic Reply 0 01 Errors ERR 6 The argument is invalid See Also 3 4 2 Page 91 2007 DH Instruments a Fluke Company RPM4 HPMS A70M A20M AF OPERATION AND MAINTENANCE MANUAL RESET Purpose Reset the user s settings to factory defaults Corresponds to front panel Reset Sets Command RESET Classic RESET Remarks The RPM4 has user settings units resolution etc that can be reset to factory defaults The remote RESET program message corresponds to the front panel Reset Sets System calibration coefficients and communications settings are not affected The reset cycle takes up to 3 seconds to complete Remote communications should not take place during this period Example sent RESET enhanced Reply RESET no reply if IEEE 488 Example sent RESET enhanced Reply RESET Example Sent RESET classic Reply RESET See Also 3 5 9 1 3 5 9 Optional Suffix Remarks The active Q RPT is assumed if no suffix is given 47 Specify the Hi Q RPT 2 Specify the Lo Q RPT Up to two internal Q RPTs can be available for use in an RPM4 You can query the RPM4 for information about each particular Q RPT The Q RPT data is returned in the following format RPTLabel Q RPTLocator Serial RngGa RngAbs Q RPTMode RngLabel RPT type label This label identifies the Q RPT type and ran
13. 2 gt lt 6bar gt lt 7mmHg gt lt 8mmWa gt If lt 4user gt is selected the user unit must be defined The display is Define user unit 1 000000 unit Pa 1 Entry field 1 Enter the number of user units per Pascal Pa in the entry field Pressing ENT defines the user unit and returns to the lt Set up unit n gt screen s The user defined unit label can be customized to any alphanumeric four character label using the remote command UDU see Section 4 4 4 s See Section 7 1 1 for the pressure unit conversion factors used by RPM4 3 5 7 lt NNTERNAL gt O PURPOSE To view set adjust and maintain various aspects of RPM4 s internal operation OPERATION To access the internal selections press SPECIAL 1 2ReadRt 3RPT2x lt 7internal gt The display is 4lo vnt 5log 2007 DH Instruments a Fluke Company Page 66 3 OPERATION The INTERNAL menu choices include lt 1baro gt lt 2ReadRt gt lt 3RPT2x gt lt 4lo vnt gt lt 5log gt View the real time output of the RPM4 on board barometer see Section 3 5 7 1 Turn ON and OFF RPM4 s automated rate of change dependent reading and integration and display rate feature see Section 3 5 7 2 Feature not used in this RPM4 model Feature not used in this RPM4 model View the RPM4 incident log see Section 3 5 7 5 3571 lt IBARO gt Q PURPOSE To view the value of atmospheric pressure as measured by the RPM4
14. Check that Q RPT default range is high enough to cover the AutoRange 3 2 3 The specified operating mode is absolute and absolute is OFF for the desired Q RPT Check that absolute measurement mode is ON for the Q RPT 5 3 5 Pressure display is flashing and beeper is sounding intermittently Current upper limit of active range has been exceeded Reduce pressure Change UL and or change active range using RANGE AUTORANGE or AutoTest 3 4 4 3 3 4 3 3 10 Hi or Lo Q RPT EXCEEDED PMAX displays alternating with normal display RPM4 Q RPT has been overpressured Pmax exceeded Correct the overpressure condition and cycle power ON and OFF to clear Q RPT may be damaged 3 4 4 1 Display is lt RPT ACTIVE the HPMS CAUTION LO ACTIVE light is flashing and RPM4 is beeping The Lo G RPT is receiving pressure but the Hi Q RPT is currently selected Since the Hi Q RPT is selected on RPM4 the Lo Q RPT should be shut off by the LO Q RPT SHUTOFF valve Reduce pressure and close the LO Q RPT SHUTOFF valve or select the Lo Q RPT on the RPM4 Do not apply more than 3 000 20 MPa to the Lo Q RPT 3 2 5 A Ready green Ready Not Ready indicator indication is never achieved Stability settings is too tight and or existing conditions will not allow Ready to be achieved Adjust stability setting or correct other conditions Consider using an AutoTest to Set stability appropri
15. 1 Edit the averaging time period if desired Press ENT to return to the main run screen with the Average DISPLAY active With the Average DISPLAY active the main run screen is 1 1 Average measured pressure over last completed averaging period 2 Standard deviation in active pressure unit of 3001 57 psi a Hi measure of last completed averaging period 5 0 03 18Avg 3 Countdown in seconds until completion of on going averaging period 2007 DH Instruments a Fluke Company Page 32 3 OPERATION The Average DISPLAY has a second screen that allows the instantaneous pressure readings to be viewed while an averaging cycle is running The instantaneous Average screen is 1 1 Instantaneous pressure values at RPM4 s normal update rate 2 Current rate of change of pressure in active 3001 51 psi a Hi pressure unit second R 0 01 18Avg 3 Countdown in seconds until completion of on going averaging period 2 3 The key toggles between the main run Average screen and the instantaneous values Average screen s Pressing ENT while in the Average DISPLAY aborts the current averaging period and causes a new one to begin ENT can thus be use to trigger a new averaging period on demand s In the Average DISPLAY the Ready Not Ready indication applies to the result of the previous averaging period see Section 3 2 1 Ready indicates that all readings during the previous averaging period met the stability
16. 2 1 1 000021 20011201 enhanced Query reply 2 10 1 000021 20011201 Example Sent CALAMB 2 1 1 000021 20011201 classic Reply 2 10 1 000021 20011201 Errors ERR 6 One of the arguments is out of range See Also 3 5 7 1 5 2 2 2007 DH Instruments a Fluke Company Page 82 4 REMOTE OPERATION 1 Purpose Read or set the RS232 settings for the COMI port Command COM1 baud parity data stop Query COM1 Classic COM1 baud parity data stop COM1 Arguments Baud The baud rate This may be 300 600 1200 2400 4800 9600 or 19200 Parity The data parity This may be O for odd E for even or N for none Data The number of data bits This may be 7 or 8 Stop The number of stop bits This may be 1 or 2 Defaults 1 2400 7 1 Remarks The COMI port is used to communicate to the RPM4 When the COM1 port configuration of the RPM4 is changed the program message reply COMI use only is sent at the old COM1 settings but all subsequent communications are accomplished at the new COMI settings A 250ms or longer delay after receiving the reply to this command will ensure that the RPM4 has changed the COM port settings and is ready for communications at the new settings Example sent COM1 9600 N 8 1 enhanced Quer
17. 30 5 5 30NLOCS Figure 17 RPM4 Illustrated Parts Breakdown of Display Assembly 2007 DH Instruments a Fluke Company Page 120 5 MAINTENANCE ADJUSTMENTS AND CALIBRATIONS Table 24 RPMA Illustrated Parts Breakdown of Internal Assembly see Figure 18 Sem _ s few APCR206CR16WN APO2PV170 123549 30C60KCSS 30NLOCS ZCAT1518 0730T 401966 3814 7 BK RL 122037 Z 123707 123565 30NLOCS SONLOCS 100550 Z Figure 18 RPM4 Illustrated Parts Breakdown of Internal Assembly Page 121 2007 DH Instruments a Fluke Company RPM4 HPMS A70M A20M AF OPERATION AND MAINTENANCE MANUAL Table 25 RPM4 Illustrated Parts Breakdown of Internal Assembly see Figure 19 124411 PLUG UNDERSIDE 123521 30C60KCSS 30NLOCS MH 1012 V 5 139 V884 75 55 100 1 05 123511 5 193 V884 75 SS 100 6 30C60KCSS 30NLOCS 807029 Figure 19 RPM4 Illustrated Parts Breakdown of Internal Assembly 2007 DH Instruments a Fluke Company Page 122 5 MAINTENANCE ADJUSTMENTS AND CALIBRATIONS Table 26 RPMA Illustrated Parts Breakdown of Electronic Chassis see Figure 20 401365 102386 30C80KCSS 30 1 0 5 30C300SFTS 30C80KCSS 30 5 5 30NLOCS 30C80KCSS 30NLOCS SS 5172 200 00 401962 Figure 20 RPM4 Illustrated Parts Breakdown of Electronic Chassis Page 123 2007 DH Instruments a Fluke Company RPM4 HPMS A70M A20M A
18. Abs Hi 2 Active Q RPT for which Pottset is being viewed 215 Pa 3 Edit field for value of Pose 3 Edit as desired and press ENT to activate the new value Press ESC to abandon changes s The value of Pts is always displayed and entered in Pascal 3 5 2 lt 2REMOTE gt PURPOSE To configure the RPM4 COM1 COM2 and IEEE 488 GPIB communication ports To test COM1 and COM2 communications To select the remote programming communications format PRINCIPLE The RPM4 has two RS 232 communications ports referred to as COM1 and COM2 and a single IEEE 488 GPIB port COM1 or the IEEE 488 port is for communicating with a host computer see Section 4 and 2 is reserved for communicating with an external device e g an RPMx a multimeter etc These ports settings can be viewed and changed using SPECIAL lt 2remote gt RPM4 has two remote communications formats classic and enhanced see Section 4 3 The active format can be selected A self test is supplied for RS 232 communications The self test allows verification that the RPM4 RS232 ports COM1 and are operating properly and that a valid interface cable is being used OPERATION To access the communications settings press SPECIAL lt 2Remote gt e Select lt 1COM1 gt to view and edit COM1 settings see Section 3 5 2 1 Select lt 2COM2 gt to view and edit COM2 settings see Section 3 5 2 1 e Select lt 3I
19. ERR 7 Abs mode only with altitude units or gauge mode only with gauge Q RPT ERR 10 The suffix indicating the Q RPT is invalid for the current conditions ERR 20 Absolute or negative gauge mode not available with gauge Q RPT Absolute Q RPT with an absolute and negative gauge OFF calibration The current range cannot support gauge mode ERR 53 Gauge mode range would be negative Lo Q RPT not suitable for differential mode See Also UNIT ARANGE 3 3 3 MSGFMT Purpose Read or set the type of program command format to use enhanced or classic Command MSGFMT mode Query MSGFMT Classic MSGFMT mode MSGFMT Arguments mode 1 to use the enhanced command format 0 to use the classic command format Defaults MSGFMT 0 Remarks The user can select the type of remote command format to use This format must agree with the format sent to the RPM4 The enhanced query form of this command MSGFMT r should always be used to set the desired format as it will be accepted regardless of the current format classic or enhanced It is recommended to use the L2 and 413 commands instead of this command for new designs Example sent MSGFMT 1 enhanced Query reply 1 No reply if IEEE 488 Example sent MSGFMT 1 enhanced Query reply 1 Sent MSGFMT 1 classic Reply MSGFMT 1 Errors ERR 6 Missing or improper program message argument s
20. If the full scale value entered cannot be covered by RPM4 an error message appears If the full scale value can be covered AutoRange proceeds to the range display View proposed AutoRange range The proposed AutoRange range screen is 1 1 Indication that this is a screen of the proposed AutoRange range 2 Designator and position of the Q RPT that AutoRange has selected to cover the AutoRange full scale and measurement mode AutoRange AJOM Hi 3 Pressure unit of measure specified in AutoRange psi 5000g 5000a 4 AutoRange full scale pressure in gauge mode and absolute 4 s If AutoRange selects a Q RPT but you would like to use the other one the lt I and gt control keys may be used to toggle between Q RPTs so that the other can be selected Accept proposed AutoRange To accept the proposed AutoRange and go to the MAIN RUN screen with the new AutoRange range active press ENT or AutoRange To modify the AutoRange full scale measurement mode or pressure unit of measure use ESC to back through the AutoRange screens and make changes The HPMS Lo Q RPT Isolation Valve protects the Lo Q RPT 3 OOO psi max from overpressure when the Hi Q RPT is in use Familiarize yourself with HPMS operation see Section 3 2 5 before changing ranges and applying pressures Always turn the Lo Q RPT Isolation Valve fully in the direction of the lighted green LED before applying pressure s To verify or confirm t
21. The message sent to the RPM4 appears after the sent label If only a Query type exists the Query sent label is shown instead Directly under this label Query reply shows a typical reply to a query type Reply shows that a query format does not exist It may have a short description next to it Classic An example of the use of a classic program message to be sent to the RPM4 is shown The command sent to the RPM4 appears after the Cmd sent label The Reply label shows a typical reply to the Sent example It may have a short description next to it Errors If the program message can report an argument error the types of errors are listed If using the classic format or the COM1 port the error message is replied after receiving the program message If using the enhanced format via the IEEE 488 port the error condition is handled by the status reporting model which stores the errors in an Error Queue and can be programmed to assert the IEEE 488 SRQ line to signal an error has occurred In either case the ERR or ERR program message can be used to retrieve a text description of the error See Also Indicates related commands and refers to manual sections giving detail on RPM4 operation corresponding to the program message Page 79 2007 DH Instruments a Fluke Company RPM4 HPMS A70M A20M AF OPERATION AND MAINTENANCE MANUAL 4 4 4 PROGRAM MESSAGE DESCRIPTIONS
22. USA Tel 602 431 9100 Fax 602 431 9559 dhi dhinstruments com www dhinstruments com Made in USA 2 INSTALLATION REAR VIEW 1 Foot switch remote ENT cable connector 2 TEST port DH500 F Figure 3 RPM4 HPMS rear view Page 9 2007 DH Instruments a Fluke Company RPM4 HPMS A70M A20M AF OPERATION AND MAINTENANCE MANUAL 24 23 RPMYHPMS SIDE VIEW 1 Lo Q RPT shut off valve 4 Foot switch remote ENT cable connector 2 RPM4 HPMS A70M A20M Reference 5 TEST port DH500 F Pressure Monitor 3 Pressure relief valve 3 300 psi Figure 4 RPM4 HPMS side view 2 4 3 RPM4 FRONT AND REAR PANELS 243 1 RPMIFRONT PANEL 1 2 3 RP m 4 Reterence Pressure Monitor 1 Ready Not Ready indicator 4 Cursor control keys 2 Display 5 Multi function keypad 3 Remote activity indicator Figure 5 RPM4 front panel 2007 DH Instruments a Fluke Company Page 10 2 INSTALLATION 2432 RPM4 REAR PANEL 13 12 ATOMS 2 Wh A20Ms 2 70 MPa 10020 psi 3000 psi 5 6 1 12VDC Power Supply Connection 8 Electrical Power Connector 2 Accessories connector to HPMS rear IEC 320 C13 panel FOOTSWITCH and LEDs 9 Fan 3 IEEE 488 Connector 10 TEST Pressure Port Lo Q RPT 4 COM 2 Connector 11 TEST Pressure Port Hi Q RPT 5 COM Connector 12 ATM Pressure Port Lo Q RPT 6 Power Switch 13 ATM Pressure Port Hi Q RPT 7 Fuse 14 Product Label bottom
23. and press AutoZ from the main run screen The display is 1 2 1 Active Q RPT designator 2 Current measurement mode absolute AutoZ Hi abs by 3 Selection of source of Pstao reference to which 13ntry 2COM2 3Lo RPT to AutoZ t 3 Selecting lt 1entry gt allows the value of Psa to be entered from the front panel keypad Selecting lt 2 2 gt allows the value of Psta o to be read automatically from another DHI RPMx connected to RPM4 s COM2 communications port Selecting lt 3Lo RPT gt is shown only if the Hi Q RPT is active This selection allows the value of Pstao for the Hi Q RPT to be read automatically from the RPM4s Lo Q RPT s Allow the RPM4 to stabilize at atmospheric pressure and ambient temperature for 5 to 10 minutes before running AutoZ in absolute mode 2007 DH Instruments a Fluke Company Page 40 3 OPERATION s If running AutoZ results in a value of that is greater than 0 005 FS of the span of the Q RPT that is being AutoZeroed the Q RPT and or the reference used as the source of P44 be out of tolerance or the AutoZ process may have been faulty Before activating a new Porse greater than 0 005 FS of the active Q RPT check to be sure that both the Q RPT and the reference were in good working order properly vented to stable atmospheric pressure at the same height and reading in the same pressure units when AutoZ was run s When the run AutoZ selection is made if a HEAD
24. held at 5 V 5 6m This pin is the return for the TxD and RxD signals 4 3 PROGRAMMING FORMATS RPM4 supports two program message formats the classic and the enhanced formats The user must select which format to use Selection can be accomplished from the front panel see Section 3 5 2 3 or remotely using the L2 or L3 program message see Section 4 4 4 The MSGFMT command can also be used to select the format but is not recommended for new designs The main difference between the classic and enhanced formats is that when using the IEEE 488 interface a query operator must be included in an enhanced command to yield a reply from the RPM4 When using the COM1 port in classic or enhanced mode or using the IEEE 488 port in classic mode every command has a reply which the host must wait for before continuing In addition the enhanced message format supports IEEE Std 488 2 syntax format and status reporting The default is the classic format In either format it is recommended that you start out a command sequence with the CLS command which clears all of the communication and error queues The basic commands are similar for both the classic and enhanced formats but the usage syntax format and status reporting are different Many RPM4 classic and enhanced commands are common with DHI PPC2 PPCK and PPC3 Pressure Controller Calibrators 2007 DH Instruments a Fluke Comp
25. ten at a time in RPM4 memory When a new AutoTest run is completed its data file goes to front of the gueue and the oldest data file is deleted 3452 FILE PURPOSE To view and edit File AutoTest definition files PRINCIPLE RPM4 supports AutoTests see Section 3 3 10 O PRINCIPLE There are two types of AutoTests e Quick AutoTests in which the DUT and test parameters are entered on the fly during the initialization of the test e File AutoTests in which the DUT and test parameters are stored in a file and retrieved when the file is selected to run an AutoTest File AutoTest parameters are stored in definition files SETUP lt 5AutoTest gt lt 2file gt allows File AutoTest definition files to be viewed and edited Up to 40 File AutoTest definition files with up to 21 test points in each file can be created 2007 DH Instruments a Fluke Company Page 52 3 OPERATION A File AutoTest definition file defines e identifying number of the File AutoTest definition file e Pressure measurement mode gauge or absolute e Pressure unit of measure e DUT full scale in pressure unit of measure and measurement mode e DUT tolerance FS e Number of test points or pressure targets to include in the AutoTest e Numerical value of each test point or pressure target See Section 3 3 10 OPERATION for information on running a Quick or File Auto Test See Section 3 4 5 1 for information on viewing the da
26. turned OFF see Section 5 3 5 When changing modes for a range if the full scale of the range is 100 psi 700 kPa or greater the full scale is the same in both absolute and gauge modes If the full scale is less than 100 psi the gauge mode full scale is 14 5 psi 100 kPa lower than the absolute mode full scale Measurement mode selection is range specific O OPERATION To change the active measurement mode for a range M t modes press MODE from the MAIN RUN screen while the range is active The display is labsolute 2gauge Select the desired measurement mode and operation returns to the main run screen with the selected measurement mode active If absolute measurement mode has been turned OFF in calibration see Section 5 3 5 absolute mode is not available s Certain RPM4 settings including AutoZ ON OFF see Section 5 5 1 are range AND measurement mode specific See Table Z for a listing of settings and what they are specific to s Absolute mode capability can be turned OFF in the calibration function see Section 5 3 5 When absolute mode is turned OFF only gauge mode can be activated lt Gauge mode only other modes OFF gt is displayed when MODE is pressed 3 3 4 AUTORANGE OQ PURPOSE To automatically set up RPM4 to optimize its measurement characteristics and features for a specific user defined pressure range of operation Page 27 2007 DH Instruments a Fluke Company RPM4 HPMS A70M A20M AF OPERATION
27. 1 Specify the Hi Q RPT 2 Specify the Lo Q RPT Remarks The RPM4 handles all pressure values internally in Pascal The coefficient replied is equivalent of 1 Pa in the current pressure unit of measure This program message allows the user to convert pressures Example Query sent UCOEF enhanced Query reply 0 0010000000 Example Sent UCOEF classic Reply 0 0010000000 See Also 3 3 2 3 5 6 7 1 1 2007 DH Instruments a Fluke Company Page 94 4 REMOTE OPERATION UDU Purpose Read or set the user defined pressure unit Command UDU label ucoef Query UDU Classic UDU abel UDU label User unit label 4 alphanumeric char maximum It cannot be an already supported unit label Ucoef User unit conversion coefficient units Pa Default UDU 1 0 Remarks The user defined unit must be set up with the program message prior to remote or local selection Example Cmd Sent UDU MYUN 001 enhanced Query reply MYUN 0 001000 No reply if GPIB 488 Example Cmd Sent UDU MYUN 001 enhanced Query reply MYUN 0 001000 Example Sent UDU MYUN 001 enhanced Reply MYUN 0 001000 Errors See Also 3 5 6 3 3 2 Uln Purpose Read or set an upper limit for the specified or active Q RPT Command limit Query Uln Classic Uln limi UL Optional Suffix
28. 10 2 When lt 1Quick gt is selected to run a Run current Quick Quick AutoTest the display is AutoTest lyes 2no This selection provides the choice between running the last Quick AutoTest including AutoRanging the RPM4 based on the previously entered DUT characteristics or setting up a new Quick AutoTest definition Select 1yes to rerun the last Quick AutoTest see below in this Section Select lt 2no gt to define a new Quick AutoTest When lt 2no gt is selected from the lt Run current Quick AutoTest gt screen the AutoTest set up edit routine is accessed The information needed to AutoRange RPM4 based on the DUT characteristics is then collected in successive screens as follows e Measurement mode gt Select lt 1gauge gt lt 2absolute gt depending on the measurement mode of the DUT being tested see Section 3 3 3 e Pressure units of measure The units of measure screen from the UNIT function key is presented see Section 3 3 2 Select the desired pressure unit of measure The choice of units may be modified see Section 3 5 6 e DUT full scale gt Enter the full scale pressure maximum pressure of the DUT in the measurement mode and pressure units that have been specified in the previous two steps 2007 DH Instruments a Fluke Company Page 44 3 OPERATION e DUT tolerance gt Enter the DUT measurement uncertainty accuracy or precision specification as desired in FS percent of full
29. 1loff gt or lt lon gt to change the AutoZ status for the current Q RPT and measurement mode from ON to OFF or vice versa s AutoZ ON is indicated by a lt z gt in the MAIN RUN screen top line third character from the right When AutoZ is OFF the character is blank Select 2view to view the current value of Potiser for the active Q RPT and measurement mode s Poffset Should be zero in absolute measurement mode when the 4 is new or has just been calibrated P4 should be roughly equal to atmospheric pressure when the is in gauge measurement mode Select lt 3edit gt to edit the value of Potser for the active Q RPT and measurement mode see Section 3 5 1 1 s The value of Poser is always displayed and entered in Pascal Pa Page 57 2007 DH Instruments a Fluke Company RPM4 HPMS A70M A20M AF OPERATION AND MAINTENANCE MANUAL 3511 EDT AUTOZ The edit AutoZ function should be used only with great care as entering inappropriate values may result in out of tolerance measurements In normal operation the value of the AutoZ offset Poteet should be changed by running AutoZ using AutoZ seen Section 3 3 9 Before editing P see Section 3 5 1 PRINCIPLE To edit the current value for the active Q RPT and measurement mode press SPECIAL lt 1AutoZ gt lt 3edit gt The display is 1 1 Indication of active measurement mode lt abs gt for absolute lt gage gt for gauge Poffset
30. 2 which allows the current rate of change of pressure to be displayed OPERATION To access the stability setting adjustment press Stability limit Hi SETUP lt 3stab gt The display is 0 5 psi s Edit the desired stability limit setting ENT activates the stability limit for the active range and returns to the main run screen Press ESC to return to the MAIN RUN screen with no change to the stability limit s The stability setting is range specific A stability setting made in one range does NOT affect other ranges Page 49 2007 DH Instruments a Fluke Company RPM4 HPMS A70M A20M AF OPERATION AND MAINTENANCE MANUAL 3 4 4 lt UL gt UPPER PURPOSE To set the upper pressure limit value for a pressure range and measurement mode PRINCIPLE The UPPER LIMIT function provides the user with a settable pressure limit at which an alarm sounds When the limit is reached RPM4 s beeper sounds intermittently as long as pressure is above the limit The UPPER LIMIT function has two purposes First when UL is set to its default value it serves as a warning that the maximum pressure of the active range is about to be exceeded Second UL can be set by the user to a value other than the default value to provide an alarm that a specific pressure limit has been exceeded This feature is often used to help protect a system to which RPM4 is connected For example it might be set just over the full scale of a device u
31. 3 5 8 5 2 5 3 Access RPM4 s various reset functions see Section 3 5 9 3 5 1 lt IAUTOZ gt O PURPOSE To turn ON and OFF the AutoZ function that offsets the RPM4 Q RPT readings relative to a reference value in order to compensate for possible Q RPT zero drift between full recalibrations To view and adjust the value of the AutoZ offset s To RUN the AutoZ routine that rezeroes the Q RPT use AutoZ see Section 3 3 9 O PRINCIPLE AutoZ Purpose and Principle The main component of the change over time of the RPM4 Q RPTs is change in zero or offset independent of span Offsetting or rezeroing RPM4 Q RPTs relative to a reference between recalibrations allows measurement uncertainty specifications to be maintained with less frequent full calibrations The RPM4 AutoZero function AutoZ provides full on board support for the rezeroing process to simplify its regular application by the user The AutoZero function uses three values 1 Psao pressure value indicated by the AutoZ reference the device that is acting as the reference relative to which to offset the RPM4 Q RPT In absolute measurement mode the pressure at which AutoZ is performed is normally atmospheric pressure and the Psao value can be supplied a by manual entry b automatically from a DHI RPMx connected to RPM4 s COM2 communications port or c automatically from the Lo Q RPT for the Hi Q RPT In gauge measurement mode is always zero atmo
32. RPM4 HPMS A70M A20M AF OPERATION AND MAINTENANCE MANUAL 0 0 psi g Lo The display is Exercise DUT amp ENT The top line is the standard RPM4 run screen indicating the current measured pressure see Section 3 1 1 Exercise the DUT if desired using the top line indication of the measured pressure and press ENT when complete The display is 1 1 Standard RPMA run screen indicating current measured pressure 2 Number of this test point the total number of 0 0 psi g Lo test points in the sequence Set 0 0 1 11 3 Pressure to set for this increment in current pressure unit of measure and measurement mode 3 2 Adjust the pressure to the lt Set nnnn gt value indicated Set the pressure so that the DUT NOT the RPM4 indicates the lt Set nnnn gt value Once the specified pressure has been set press ENT If the RPM4 pressure reading is in Not Ready condition see Section 3 2 1 the RPM4 makes an invalid entry sound and displays lt Pressure NOT READY TRY AGAIN gt Correct the conditions that are causing the RPM4 reading to be excessively unstable and press ENT again If the RPM4 pressure reading is in Ready condition the RPM4 makes a valid entry sound and the display is 1 Standard RPM4 run screen indicating current measured pressure 2 Number of this test point the total number of 1 test points in the sequence 3 lt gt to indicate freeze see Section 3 3 6 7 followed by the RPM4 pressure readin
33. RTP Which Q RPT is currently active is continuously by characters in the upper right hand corner of the MAIN RUN screen and most other screens Each RPM4 Q RPT has a default range which is its maximum range Additional ranges lower than the Q RPT s maximum may also be created using AutoRange and AutoTest see Section 3 3 4 3 3 10 Ranges created using AutoRange are temporary but may be saved with all their settings for reactivation see Section 3 4 1 1 An RPM4 range is identified by a range screen showing the Q RPT used by the range its current unit of measure and its full scale pressure in gauge and absolute measurement modes The range screen is 1 JQ RPT designator 1 2 3 2 of range DF for the Q RPT s default range AR for a range created by AutoRange Active A70M DF Hi Q RPT positi ignator position designator psi 10000g 10000a 4 Current pressure unit of measure 5 Full scale pressure in current unit of measure in gauge lt g gt and or absolute lt a gt measurement mode 4 5 Page 19 2007 DH Instruments a Fluke Company RPM4 HPMS A70M A20M AF OPERATION AND MAINTENANCE MANUAL The ranges available on the RPM4 are accessed using RANGE see Section 3 3 1 and or created using AutoRange see Section 3 3 4 Most settings made in an RPM4 range such as unit of measure measurement mode display resolution and stability setting are specific to the range Settings selected while
34. Select lt 1none gt to suppress the valid key press tone Page 61 2007 DH Instruments a Fluke Company RPM4 HPMS A70M A20M AF OPERATION AND MAINTENANCE MANUAL The sound function only affects the valid key press tone The invalid key press tone and other RPM4 sounds cannot be adjusted or suppressed 3553 lt STIME gt Q PURPOSE To view and edit the RPM4 internal time and date settings o OPERATION To access the TIME function press SPECIAL lt 5prefs gt lt 3time gt The display is Edit ltime 2date 08 32 11 am 20030125 Select lt 1time gt to edit the time Edit hours then minutes then am pm by pressing ENT after each entry Seconds go to zero when minutes are entered This can be used to synchronize the time with a time standard Select lt 2date gt to edit the date The date must be specified in YYYYMMDD format s The 4 date and time are set to United States Mountain Standard Time in the final test and inspection process at the factory If desired use the TIME and DATE function to set your local time and date 355 4 AD gt Q PURPOSE To view or edit the RPM4 user ID and to view the RPM4 serial number Q OPERATION To access the ID function press SPECIAL lt 5prefs gt lt 2ID gt Select lt 1view gt to view the current ID Select lt 2edit gt to edit the ID The ID has twelve characters When the edit screen is opened the cursor is on the first character Numerical values can be enter
35. The HPMS isolation valve 2 must always be in the closed position knob fully CCW when operating at pressure greater than 5 psi 20 MPa The CAUTION LO Q RPT ACTIVE LED 5 is used to indicate that the Lo Q RPT is active and provide an alert when the Lo G RPT is active but a Hi Q RPT range is selected on the RPM4 The CAUTION LO Q RPT ACTIVE LED 5 is driven by the value of pressure currently measured by the Lo Q RPT it is not driven by the valve position as there is no sensing of the valve position The CAUTION LO Q RPT ACTIVE LED 5 has three possible conditions e LED is OFF The Lo Q RPT is NOT active The Lo Q RPT is considered active when it measures a pressure greater than about 30 psig 200 kPa e LED ON continuously The Lo Q RPT IS active and the Lo Q RPT is selected on the RPM4 The LED is lit as a reminder that the Lo Q RPT is active and pressure over its maximum working pressure of 3 000 psi 20 MPa should not be applied e LED is flashing ON OFF accompanied by high frequency beeps and ILO Q RPT ACTIVE displayed by RPM4 Lo Q RPT IS active and the Hi Q RPT is selected on RPM4 The Lo Q RPT should NOT be exposed to pressure when the Hi Q RPT is selected Exposing the Lo Q RPT to pressures for which the Hi Q RPT is normally used will overpressure and damage the Lo Q RPT Vent pressure from the RPM4 and shut off the Lo Q RPT with the Lo Q RPT shut off valve before continuing to use the Hi Q RPT s If the
36. a Fluke Company Page 48 3 OPERATION O OPERATION To access the resolution function press SETUP Display resltn Hi lt 2res gt The display is 0 0010 3FS lt and gt Use the cursor control keys to set the desired level of resolution Press ENT to return to the MAIN RUN screen with the new resolution setting active or ESC to make no changes s The resolution setting is range specific A resolution setting made in one range does NOT affect other ranges s The maximum resolution setting is limited in AutoRange ranges that are less than 10 of the default full scale 3 43 lt 3STAB gt O PURPOSE To view and or adjust the stability test that is the Ready Not Ready criterion for the active Q RPT and range s Section 3 2 1 Pressure Ready Not Ready O PRINCIPLE RPM4 continuously monitors the rate of change of pressure measured by the active Q RPT and compares this rate to the active stability limit to make a Ready Not Ready determination see Section 3 2 1 The stability function allows the stability limit to be adjusted by the user to increase or decrease the stability required for a Ready condition to occur s Default stability when using AutoRange is 0 005 FS of active range span Default statbility when AutoRanging as part of an AutoTest is 10 of the DUT tolerance see Section 3 3 4 Table 4 s The stability limit is separate and different from the Rate DISPLAY function see Section 5 5 6
37. a semicolon There will be no reply from the RPM4 using the IEEE 488 port unless the command is immediately followed by the query operator If you are using the COMI port the PPC1 will reply and you must wait for this reply If this field is not listed in the program message description then the Command type is not supported when using the Enhanced format Query This is the Enhanced program message syntax to request data from the RPM4 The RPM4 must be set to use the enhanced format see Section 3 5 2 3 The RPMA will always reply to a query You must wait for this reply before issuing another program message If this field Query is not listed in the program message description then the Query type for the program message is not supported when using the Enhanced format Classic This is the Classic program message syntax to send data to the RPM4 to execute an RPM4 function or to query for data The RPM4 must be set to use the classic format see Section 3 5 2 3 The command may be followed by a and additional argument characters to show that argument s can be passed If there are multiple arguments then commas must separate them The RPMA will always reply to a Classic program message You must wait for this reply before issuing another program message If this field is not listed in the program message description then it is not supported when using the classic format Suffix Some commands support an optional suffix T
38. after which RPM4 s SCREEN SAVER activates PRINCIPLE RPM4 has a SCREEN SAVER function which causes the display to dim after a front panel key is NOT pressed for a certain amount of time The default is for the screen saver to activate after 10 idle minutes The screen saver activation time can be adjusted by the user or screen saving can be completely eliminated s Setting screen saver time to zero eliminates the SCREEN SAVER function so that the display permanently remains at full brightness Q OPERATION To access the SCREEN SAVER function press SPECIAL lt 5prefs gt lt 1ScrSav gt Edit in minutes the idle time after which screen saver will activate to dim the screen Set the time to zero to eliminate the SCREEN SAVER function 3 5 5 2 lt 2SOUND gt o PURPOSE To adjust or suppress the RPM4 valid key press sound s See Section 3 1 4 for information on the complete list of sounds made by RPM4 and their meanings Q PRINCIPLE RPM4 provides audible feedback by a brief beep when a valid key press is made The tone frequency of this beep may be selected from three choices or it may be completely suppressed Invalid key presses are indicated by a descending two tone blurp which cannot be suppressed O OPERATION To access the keypad sound adjustment function press SPECIAL lt 5prefs gt lt 2sound gt Select between lt 2lo gt lt 3mid gt or lt 4hi gt to adjust the valid key press tone frequency
39. criterion Not Ready indicates that one or more readings were outside of the stability criterion s Changing the pressure unit of measure measurement mode or range while the averaging screen is active starts a new averaging period s To go to a DISPLAY other than Average press DISPLAY and make a new DISPLAY choice see Section 3 3 6 33 6 2 Rate O PURPOSE To activate the Rate DISPLAY s See Section 3 3 6 O Principle s The AutoTest function see Section 3 3 10 to AutoRange RPM4 based on DUT characteristics and run an automated test seguence is accessed by pressing ENT from the Rate run screen Page 33 2007 DH Instruments a Fluke Company RPM4 HPMS A70M A20M AF OPERATION AND MAINTENANCE MANUAL O OPERATION To activate the Rate DISPLAY press DISPLAY lt 2Rate gt Pressing lt 2Rate gt returns to the main run screen with the Rate DISPLAY active With the Rate DISPLAY active the main run screen is 8455 25 psi a Hi 1 Current rate of change of pressure in current R 0 03 sec pressure unit per second 1 s The Rate DISPLAY is different and separate from the stability setting which is used to set the stability criterion on which the Ready Not Ready indication is based see Sections 3 4 3 and 3 2 1 The Rate DISPLAY only causes the current rate of change to be displayed and has NO affect on the stability setting or the Ready Not Ready condition s The Rate DISPLAY is the default RPM4 main run screen
40. differences The RPM4 can be programmed to respond to various status conditions by asserting the SRO of the IEEE 488 interface The COM1 port cannot be supported in such a way so polling must be used 4 5 1 ERROR QUEUE The RPM4 keeps track of remote errors by using an error queue If an error occurs it is pushed onto the Error Queue If you are using the COM1 port the error number is immediately replied in the form ERR nn where nn is the error code from 0 to 99 The ERR or ERR query can then be used to pull the error from the Error Queue in it s descriptive text format If you are using the enhanced program message format the Error Queue will accumulate errors until full unless they are pulled from the queue If you are using the classic program format the Error Queue is cleared every time a new program message is received Page 97 2007 DH Instruments a Fluke Company RPM4 HPMS A70M A20M AF OPERATION AND MAINTENANCE MANUAL 4 5 2 STATUS BYTE REGISTER The RPM4 contains an 8 bit Status Byte Register that reflects the general status of the RPM4 Table 16 8 Bit status byte register OPER RQS MSS ESB MAV N A ERROR N A RSR 128 64 32 16 8 4 2 1 This register is affected by the RPM4 reply output queue the Error Queue the Standard Event Status register and the Ready Event Status register Status Byte Register STB SRE n OPER 128 RQS MSS Standard Event S
41. display s To go to a DISPLAY other than Rate press DISPLAY and make a new DISPLAY choice see Section 3 5 6 336 3 Dev Deviation PURPOSE To activate the Deviation DISPLAY and or set the deviation target value s See Section 3 3 6 O Principle O OPERATION To activate the Deviation DISPLAY press Target DISPLAY lt 3Dev gt The display is 9000 0 psi a Edit the desired target value Pressing ENT returns to the main run screen with the Deviation DISPLAY active using the entered target value s The target value is the value from which deviations D are measured by the Deviation DISPLAY following D current pressure target pressure 2007 DH Instruments a Fluke Company Page 34 3 OPERATION With the Deviation DISPLAY active the main run screen is 8998 2 psi zH3 1 Deviation of current pressure from the target D 1 8 T9000 0 value 2 Target value 2 s Pressing ENT from the main run screen when the Deviation DISPLAY is active g0es directly to the Target editing screen This allows the target value to be changed and without going through the DISPLAY menu s If the pressure measurement unit or mode is changed while the Deviation DISPLAY is active the target value remains at the same numerical value It is NOT converted s To go to a DISPLAY other than Deviation press DISPLAY and make a new DISPLAY choice see Section 3 5 6 3364 RPT O PURPOSE To activate the RPT DI
42. enhanced Query reply 10 in 2 Sent HEAD 10 in N2 classic Reply 10 in 2 Errors ERR 2 The fluid text is too long ERR 6 The height is not within given limits or the unit is invalid ERR 7 The fluid text is invalid See Also 3 3 7 3 5 3 ID Purpose Read or set the user defined instrument identification label Command ID string Query ID Classic ID string p Arguments String An alphanumeric string up to 12 characters long Remarks The user defined ID label can be used to allow the user to tag the RPM4 with a unique identifier This ID is stored in non volatile memory and cannot be erased by a power failure system fault or reset The ID should not be changed frequently as the non volatile memory may fail after 100 000 write operations Example Cmd sent ID RPM4 A01 enhanced Query reply RPM4 A01 No reply if GPIB 488 Example Cmd sent ID RPM4 A01 enhanced Query reply RPM4 A01 Example Sent ID RPM4 A01 classic Reply RPM4 A01 Errors ERR 6 The string argument was longer than 12 char See Also 3 5 5 4 Page 85 2007 DH Instruments a Fluke Company RPM4 HPMS A70M A20M AF OPERATION AND MAINTENANCE MANUAL L2 L3 Purpose Read or set the type of program command format to use classic or enhanced Command
43. enhanced mode command CLS or CLS Clear the error queue Wait for reply UNIT KPA or UNIT Generates a reply User must wait for reply before continuing MMODE or MMODE Generates a reply User must wait for reply before continuing PR or PR Generates a reply User must wait for reply before continuing 4 3 22 USING QUERY TYPE COMMANDS The QUERY type of program message just requests data from the RPM4 Placing the query operator immediately after the command creates a query You must wait for a reply with a query If you send any type of program message to the RPM4 after a query before receiving a reply the program message is discarded and an error is generated Errors are reported using the IEEE Std 488 2 status reporting model A Query program message always ends with a question mark Most queries return a reply within 200 ms except PR PRR SR ATM RATE Up 2 seconds RPT ARANGE AUTOZERO RUN Up to 3 seconds The syntax for using a QUERY program message is listed next to the keyword Query in each program message summary in Section 4 4 4 Please note that queries in enhanced mode via the IEEE 488 port that results in an error will not result in a reply You must check the error queue use the ERR querie to see if an error has occurred 2007 DH Instruments a Fluke Company Page 76 4
44. for example when the needle of an analog gauge is on the nominal point or when a switch activates CLEAN Blanks out the second line of the display see Section 3 3 6 7 This function is used when a simple display of pressure measured by the RPM4 active range with minimal additional information is desired Page 31 2007 DH Instruments a Fluke Company RPM4 HPMS A70M A20M AF OPERATION AND MAINTENANCE MANUAL OPERATION To set the DISPLAY function press DISPLAY from the main run screen lavg 2rate 3dev 4RPT The display is 5HiLo 6freeze 7clean The cursor is on the active DISPLAY function Selecting a DISPLAY function returns to the main run screen with the selected function active See Sections 3 3 6 1 to 3 3 6 7 for information on each of the DISPLAY choices s The DISPLAY selection is NOT range specific A DISPLAY selection made in one range applies to all ranges The default DISPLAY function is Rate which causes the second line of the display to show R followed by the current rate of change of pressure in current pressure units per second 33 61 AVERAGE O PURPOSE To activate the Average DISPLAY and or adjust the period of time over which averaging occurs s See Section 3 3 6 O Principle O OPERATION To access the Average DISPLAY press DISPLAY lt 1Avg gt The display is Averaging Period 1 Edit field for averaging period in seconds 20 s Default is 20 Minimum 1 maximum 999
45. gt Adjust the resolution of pressure displays see Section 3 4 2 lt 3stab gt Adjust the pressure stability limit that is the criterion for the Ready Not Ready indication see Section 3 4 3 lt 4UL gt Adjust upper pressure limit alarm see Section 3 4 4 lt 5ATest gt Set up File AutoTest files and view data files resulting from running AutoTests See Section 3 4 5 3 4 1 lt IRANGE gt PURPOSE Save AutoRange ranges and associated settings for recall Delete previously saved AutoRange ranges PRINCIPLE The RPM4 AutoRange function creates a range and automatically sets various operating parameters proportionally to the range see Section 3 3 4 Operating settings can then be changed by the user Many operating settings are specific to the current range see Table 2 SPECIAL lt 1range gt allows the AutoRange range and associated settings to be saved for recall using the RANGE key see Section 3 3 1 This can avoid having to recreate frequently used ranges and settings SPECIAL lt 1range gt is also used to delete ranges that have been saved but are no longer needed 3411 SAVING AN AUTORANGE RANGE Q OPERATION To save a range created by AutoRange the range must be the active range Use AutoRange or AutoTest to create the range sees Sections 3 3 4 3 3 10 and then make any desired feature and setting adjustments Once the AutoRange range is set up as desired press SETUP lt 1range gt lt 1save g
46. is Ready as defined by the stability settings see Section 3 2 1 2007 DH Instruments a Fluke Company Page 100 4 REMOTE OPERATION 4 6 IEEE STD 488 2 COMMON AND STATUS PROGRAM MESSAGES The RPM4 supports a set of commands that are common to all instruments conforming to IEEE Std 488 2 These command make it easy to perform basic function for any device that supports these commands These commands also cover the status reporting commands See Section 4 5 for details on the status registers mentioned in these commands Table 19 Program message list Clear all of the status amp event structures Read or set the Standard Event Status Enable Register Read the Standard Event Status Register Identify the RPM4 version range and serial number Set the operation complete bit when all operations have completed Read the list of installed RPM4 options Reset the RPM4 settings to factory settings Read the power on self test status Read or set the Service Request Enable Register Read the Status Byte Register Read or set the Ready Status Enable Register Read the Ready Status Register 4 6 1 PROGRAM MESSAGE DESCRIPTIONS CLS Purpose Clear all of the status amp event structures Command CLS Remarks This program message clears the following events and status registers Standard Byte Register STB Standa
47. of Pstao is entered in the current pressure unit of measure Page 41 2007 DH Instruments a Fluke Company RPM4 HPMS A70M A20M AF OPERATION AND MAINTENANCE MANUAL Run AutoZ by COM2 AutoZ by allows the value of Pstao see Section 3 5 1 O Principle to be read automatically from a DHI RPMx connected to the RPM4 COM2 communications port is read and the new Poftset is calculated automatically To access run AutoZ by COM2 press AutoZ lt 2 2 gt The display is 1 2 1 Real time pressure reading without head correction pressure unit of measure and measurement mode of the active Q RPT 14 03 psi a Hi 2 Active Q RPT position designator Pstd 0 0 00 0 0 3 Real time reading from the RPMx connected to RPM4 s COM2 communications port 3 Observe the displayed pressures and verify that they are stable When ready press ENT to cause AutoZ to run RPM4 logs both readings and calculates a new AutoZ offset value The display is Press ENT to activate the new value of Old Perge 0 0 Pa Potiset Or ESC to start over New 2745 Pa s For RPM4 to communicate with an RPMx connected to its COMZ port the RPM4 and the RPMx RS 232 interfaces must be set properly see Section 3 5 2 If the RPM4 is unable to communicate with an RPMx via COM2 when running AutoZ by COM2 it times out after 6 seconds and displays RPM NOT detected gt The value of Pts is always displayed and e
48. of case Figure 6 RPM4 rear panel 2 44 POWER CONNECTION Connect the supplied power cable to the RPM4 rear panel power module Connect the other end of the power cable to an electrical supply of 85 to 264 VAC 50 60 Hz 245 CONNECTION Connect the foot switch supplied in the RPM4 HPMS accessories to the HPMS rear panel electrical connection labeled FOOT SWITCH Place the foot switch on the floor at a convenient location see Section 2 2 Figure 1 The FOOT SWITCH function is equivalent to the RPMA front panel ENT key and may be used frequently while running tests and calibrations 2 46 TEST PORT CONNECTION A single high pressure TEST port is provided on the rear panel of the HPMS The test port connection is a DH500 F DH500 is a gland and collar type fitting for 1 4 in 6 mm coned and left hand threaded tube DH500 is equivalent to AE F250C HIP HF4 etc Connection to GPC1 if the RPM4 HPMS is Part of an PGC 10000 AF System If the RPM4 HPMS was delivered as part of a PGC 10000 AF Pneumatic Gauge Calibrator a GPC1 Gas Pressure Controller was delivered with it The GPCI includes a fittings kit with the necessary fittings to interconnect the RPM4 HPMS and GPCI as well as instructions on making the connection See the GPC1 10000 AF manual Page 11 2007 DH Instruments a Fluke Company RPM4 HPMS A70M A20M AF OPERATION AND MAINTENANCE MANUAL USE THE CORRECT PRESSURE CONNECTORS The RPM4 HPMS TEST por
49. of the calibration screens Pressing ESC in any edit screen exits the edit screen without activating any changes s The value of PA is always in Pascal Pa The value of PM is dimensionless 5 3 8 QRPT ADJ USTMENT WITHOUT CALTOOL FOR Q RPTS SOFTWARE O PRINCIPLE The RPM4 Q RPTs can be adjusted without using CalTool for Q RPTs software This requires e Setting to Zero e Applying pressures with a calibration standard and recording the pressures measured by RPM4 e Calculating new PA and PM values and entering them 2007 DH Instruments a Fluke Company Page 112 5 MAINTENANCE ADJUSTMENTS AND CALIBRATIONS Before proceeding to adjust a G RFT without using CalTool for Q RPTs software Sections 5 3 1 5 5 2 5 3 3 and 5 3 4 O OPERATION The typical procedure for adjusting a Q RPT is o Set up and prepare the RPM4 for calibration see Sections 5 3 2 5 3 3 Use the RANGE function key to select the Q RPT to be calibrated see Section 3 3 1 Be sure to set the DF range not an AutoRanged range Use HEAD to set the HEAD to zero see Section 3 3 7 Use UNIT to set the desired pressure unit of measure see Section 3 3 2 Use MODE to set the desired pressure measurement mode see Section 3 3 3 Q RPTs that will be used in gauge measurement mode only after the adjustments are made may be calibrated in gauge measurement mode with a gauge pressure standard see Section 5 3 5 Use SPECIAL lt 1AutoZ
50. one range is active apply to that range and not to other ranges The range specific settings are stored with the range and recalled whenever the range is made active This makes setting up ranges a convenient way to store and recall frequently used operating configurations See Table 2 for a listing of RPM4 adjustments and settings and whether they are range Q RPT or system specific Table 2 Settings and what they are specific to range measurement mode Q RPT system me r O absolute gauge Set fluid head correction height fluid unit System 35370 of measure Autoz Run AutoZ G RPT and measurement mode Stability Set Ready Not Ready stability test Upper Limit UL Set upper limit alarm Range and measurement mode AutoZ ON OFF set and view values G RPT and measurement mode Screen Saver Set system user preferences System 3 575 Sound Time ID Level Various Q RPT and barometer calibration G RPT or barometer functions including turning off absolute and negative gauge modes 3 2 4 AUTOMATED TEST AND CALIBRATION SEQUENCES The RPM4 AutoTest function supports Quick and File automated calibration sequences These automatically AutoRange the RPM4 setting its resolution stability limit and upper limit based on the characteristics of the device under test They also prompt the user through the increments of the calibration sequence and log calibration data The AutoTest function should be used for most common calibra
51. panel keypads during remote operation Command REMOTE Classic REMOTE Remarks The RPM4 goes into remote mode whenever communications take place The user can return to local operation by pressing the ESC key The REMOTE program message locks out the front panel completely The only way to unlock the front panel after the REMOTE command is using the LOCAL program message the IEEE 488 GTL command or by cycling the RPM4 power Example sent REMOTE enhanced Reply REMOTE no reply if IEEE 488 Example sent REMOTE enhanced Reply REMOTE Example Sent REMOTE classic Reply REMOTE See Also LOCAL RESn Purpose To read or set the pressure display resolution for the active range Command RESn res Query RESm Classic RESn res RESm Default RESn 0 001 Optional Suffix n The active Q RPT is assumed if no suffix is given 47 Specify the Hi Q RPT 2 Specify the Lo Q RPT Arguments res The pressure display resolution in 96 span of the specified Q RPT range 0 0001 to 1 96 FS Remarks The pressure display resolution is defined as span of the active range The setting is Separate for each range and changes as the range is changed Example sent RES 01 enhanced Query reply 0 01 No reply if GPIB 488 Example sent RES 01 enhanced Query reply 0 01 Example Sent
52. scale This value will be used to determine appropriate RPM4 resolution and stability test settings e Test increment gt Enter the test increment in FS of the DUT When executing the test the test increments will be from zero to the DUT full scale dividing by the value of the increment If a non even increment value is entered the actual increments will be rounded to the lower number of increments For example if the DUT full scale is 10 000 psi and the increment specified is 42 the Sequence will run points of 0 5000 and 10000 psi because 42 goes into 100 less than three but more than two times e Test point sequence gt Select lt lup gt for the AutoTest sequence to run from zero to the DUT full scale lt 2down gt for the sequence to start at the DUT full scale and run down to zero lt 3u amp d gt for the sequence to run from zero to the DUT full scale and back to zero lt 4d amp us gt for the sequence to run from the DUT full scale down to zero and back to the DUT full scale After the last test definition entry a screen is offered for the user to check that the correct test has been defined or selected and that it does not exceed the range of the device or system being tested 1 Indication of minimum and maximum pressure included in the sequence which is 0 000 to 5000 0 about to run t 1 Pressing ESC returns to the AutoTest selection screen without AutoRanging the RPM4 and without sequence execution Pres
53. the RS232 ports COM1 and COM2 press SPECIAL lt 2remote gt lt 5RS232test gt Page 59 2007 DH Instruments a Fluke Company RPM4 HPMS A70M A20M AF OPERATION AND MAINTENANCE MANUAL The display prompts you to connect COM1 to COM2 using a standard pin to pin DB 9F to DB 9M RS232 cable see Section 4 2 1 1 4 2 1 3 Once the cable has been installed press ENT to run the self test The test is first executed in the 1 gt 2 direction and then in the COM2 gt COM1 direction If the 1 gt 2 test passes lt PASSED gt displays briefly and the test proceeds to 2 gt 1 If COM2 COMI passes PASSED is displayed briefly followed by the conclusion The RS232 test has PASSED gt If a test fails Execution is suspended until ENT is pressed The RPM4 65232 test can fail for three reasons 1 The 6232 cable being used is incorrect Section 4 2 1 1 4 2 1 5 for information on the correct cable 2 COM1 and 2 do NOT have the same serial communications settings and therefore cannot communicate together see Section 3 5 2 1 to set the COM ports 3 COM or COM2 is defective The reason for failed communications is almost always a cable or incorrect R5232 interface settings Be sure that these are correct before concluding that a COM port is defective 3 5 3 lt gt PURPOSE To view or change the properties of the HEAD function see Section 3 3 7 including
54. the unit of measure of length for head height entry and the test fluid type and species for density calculations OPERATION From the MAIN RUN screen press SPECIAL lt 3Head gt Select the desired height unit of measure and press ENT Select lt 1gas gt or lt 2liqud gt depending on the pressurized medium between the RPM4 and the height at which pressure is to be calculated Select the gas or liquid species The liquid selection lt 3User gt is to create a custom liquid with a user entered density Use HEAD to set a head height if desired 3 5 4 lt ASDS gt OQ PURPOSE This feature is not used in RPM4 A70M A20M AF 3 5 5 SPREFS gt PURPOSE To access a menu of RPM4 operational preferences and functions OPERATION 2007 DH Instruments a Fluke Company Page 60 3 OPERATION To access the PREFS menu press SPECIAL lScrSvr 2sound 3time lt 5prefs gt The display is 41D 5level The PREFS menu includes lt 1ScrSvr gt lt 2sound gt lt 3time gt lt 410 gt lt 4level gt View and change the screen saver activation time see Section 3 5 5 1 View and change the key press sounds see Section 3 5 5 2 View and edit the internal time and date settings see Section 3 5 5 3 View the RPM4 serial number SN and view or edit the ID number see Section 3 5 5 4 View and set the user security level and or password see Section 3 5 5 5 3551 lt SCRSVR gt o PURPOSE To adjust the idle time
55. to default characteristics see Section 3 3 10 e Clears File AutoTest definition files see Section 3 4 5 2 e Clears AutoTest results data logs see Section 3 4 5 1 2007 DH Instruments a Fluke Company Page 70 3 OPERATION 3594 lt GCAL gt Q PURPOSE The Reset Cal function will reset the Q RPT and barometer calibration coefficients and reset AutoZ values to zero This will change the RPM4 calibration and could cause it to make out of tolerance measurements Clears all user values affecting the calibration of Q RPTs and the on board barometer The Reset Cal resets are itemized in Table 10 Table 10 Reset RESULT SEE SECTION All G RPT calibration coefficients Q RPT absolute mode ON PA to zero PM to 1 PA to zero PM to 1 On board barometer calibration coefficients Calibration date Set all dates to 19800101 All Values to zero for absolute mode and 101325 Pa for gauge and negative gauge modes AutoZ values AutoZ function ON all Q RPT s all measurement modes 3595 lt ALL gt Q PURPOSE The reset all function clears and deletes large amounts of user defined information including critical calibration data Combines all resets in one global reset command that clears the entire user section of non volatile memory except the ID function see Section 3 5 5 4 and the security level password see Section 3 5 5 5 returning RPM4 to the as delivered cond
56. 10 2 TEST EXECUTION ISETUB ANA A ENA Z a RANGE 3 4 1 1 SAVING AN AUTORANGE RANGE 3 4 1 2 DELETING AUTORANGE RANGES 3 4 2 lt 2RES gt RESOLUTION us 3 4 3 xci i 3 4 4 lt 40 gt UPPER 3 4 4 1 OVER PRESSURE FUNCTION 3 4 5 lt 5ATEST gt 3 4 5 1 DATA n Pu 3 4 5 2 CLE MEE MR S 3 5 5 gt i 3 5 1 1AUTOZ 3 5 1 1 EDIT AUTOZ 3 5 2 2REMOTE 3 5 2 1 lt 1COM1 2COM2 3 5 2 2 lt 488 gt 3 5 2 3 lt 4 gt 3 5 2 4 lt 5RS232 SELF TEST gt 3 5 3 lt SHEADS eee 3 5 4 lt 4SDS gt 3 5 5 lt B5PREFS gt 3 5 5 1 lt 1SCRSVR gt 3 5 5 2 lt 2SOUND gt 3 5 5 3 lt 3TIME gt 3 5 5 4 al D ttes 3 5 5 5 lt 5LEVEL gt SECURITY 3 5 6 6PUNIT 3 5 7 lt TINTERNAL gt 3 5 7 1 lt 1BARO gt 3 5 7 2 lt 2READRT gt 3 5 7 3 lt 3RPT2X gt 3 5 7 4 lt 4LO VNT gt 3 5 7 5 lt BLOGs 3 5 8 lt B8CAL gt 3 5 9 lt 9RESET gt 3 5 9 1 lt 1SETS gt
57. 117 5 4 4 5 Q RBPT MODULE 5i iicet ra 117 5 4 4 6 DISPLAY EIE 117 5 4 4 7 118 5 4 5 Q RPT MODULE PNEUMATIC SCHEMATIC s nn ns nn 118 55 RPMA ILLUSTRATED PARTS BREAKDOWN 5 6 HPMS 1 21 5 6 1 HPMS OVERHAUL 5 7 HPMSILLUSTRATED PARTS BREAKDOWN Page 11 2007 DH Instruments a Fluke Company RPM4 HPMS A70M A20M AF OPERATION AND MAINTENANCE MANUAL TROUBLESHOOTING septena em bee 129 T APPENDIX o v to 133 TA UNIT CONVERSION 133 7 1 1 PRESSURE as aaien oa eaea iei ava 133 Os WARRANTY erini k eae Aant 135 LX EER I il P 135 9 GLOSSARY iet ERE ma NN I RE i A TE 137 2007 DH Instruments a Fluke Company Page IV TABLES amp FIGURES D H DH Instruments TABLES H ovr Table 1 RPM4 HPMS A70M A20M AF Parts 40042 1 0 00000 6 Table 2 Settings and what they are specific to range measurement mode Q RPT system 20 Table 3 Summary of function key operation enne enne 24 Table 4 Settings made by AutoRange non 28 Table 5 AUtoZON and OFF th Ra ete tr
58. 4 4 REMOTE OPERATION COMMANDS 4 4 1 PROGRAMMING MESSAGES Some commands accept an optional suffix This suffix be used to specify the explicit Q RPT to address In most cases each Q RPT in the RPM4 operates as an independent measurement device f the suffix is not specified then the Active Q RPT is assumed The RANGE or ARANGE command can be used to select the Active Q RPT See the program message descriptions for suffix use with a specific command COMMAND m indicates an optional suffix Table 14 Program message list DESCRIPTION Send a command string out of the RPM4 COM port ABORT Stop pending operations ARANGEn Read or set a new AutoRange to use ATM Read the current atmospheric pressure on board barometer AUTOZEROn Read or set the status of the AutoZ automatic zeroing function AUTOZEROn RUN Run AutoZero CALAMB Read or set the on board barometer calibration COM1 Read or set the configuration of the COM1 port COM2 Read or set the configuration of the COM2 port CONTn Enable continuous measurements DATE Read or set the current date ERR Read the last error message GPIB Read or set the GPIB interface address HEAD Read or set the fluid head settings ID Read or set the RPM4 alphanumeric asset ID tag L2 Selects classic program message format L3 Selects
59. AND MAINTENANCE MANUAL PRINCIPLE RPM4 A70M A20M AF is designed to support the calibration and test of a very wide variety of test ranges in absolute and gauge measurement modes The AutoRange function simplifies the task of selecting the Q RPT best suited to cover a specific test range and setting measurement parameters appropriately for that specific range These are set automatically based on operator entry of desired measurement mode pressure unit of measure and range full scale The selections and settings made by AutoRange are summarized in Table 4 A range set up using AutoRange and all its range specific settings may be saved for recall using SETUP lt 1range gt see Section 3 4 1 Saved ranges are available for later selection using RANGE see Section 3 3 1 If a range created by AutoRange is not saved it is overwritten by the next AutoRange or erased when another range is selected s Press ENT from the main run screen in Rate DISPLAY mode to use the AutoTest function to AutoRange RPM4 based on DUT tolerance see Section 3 3 10 Table 4 Settings made by AutoRange SETTING PURPOSE SETTING BY SETTING BY RELATED SELECTION AUTORANGE AUTOTEST SECTION see Section 3 3 10 Unit Set pressure unit of Operator specified Operator specified in measure during AutoRange AutoTest definition Set pressure Operator specified Operator specified in measurement mode during AutoRange AutoTest definition absolute gauge
60. AUSE Incorrect pressure units and or measurement mode gauge or absolute 6 TROUBLESHOOTING SOLUTION Set desired pressure units and or measurement mode Consider reference temperature if unit is inWa 3 3 2 3 3 3 Q RPT calibration coefficients have been altered Check and correct calibration coefficients if needed 5 3 AutoZ has been run and turned ON with an incorrect standard for zero Check value of Rerun Autoz with a valid reference 3 5 1 Apparent inaccurate pressure measurement and lt h gt is displayed on top line of screen An unplanned head correction is active or head height or fluid is incorrect Operation is normal Remove or change head correction 3 3 7 AutoZ was just run in gauge mode but measurement indication is NOT zero lt h gt is displayed on top line of screen A head correction is applied and current indication is the value of the head Operation is normal 3 3 7 3 3 9 1 3 5 1 Pressure applied is zero gauge but reading is NOT zero Need to run AutoZ to rezero in gauge mode Run AutoZ 3 3 9 1 Current measurement mode is absolute and RPM4 is indicating atmospheric pressure Check measurement mode setting and set to gauge if gauge pressure measurements are desired 3 3 3 Pressure applied is atmospheric but RPM4 indicates near zero Current measurement mode is gauge and RPM4 is indicating zero gauge pressure Check measur
61. Breakdown see Figure 21 and 22 Page 125 2007 DH Instruments a Fluke Company RPM4 HPMS A70M A20M AF OPERATION AND MAINTENANCE MANUAL 60 2H4 316 60 2HM4 121734 TEST PORT 123812 01 60 2HM4 304 F2 125 60 2H4 316 248mm 304 F2 125 124146 40mm 402188 55 200 3 55 200 4 124147 122039 122034 400902 02 Figure 21 HPMS Schematic 2007 DH Instruments a Fluke Company Page 126 5 MAINTENANCE ADJUSTMENTS AND CALIBRATIONS 26 252 5201 0 SSDM001 50 092 96 20 SOv 6S62 0 2182 SH3N20t 5201 0 SSDM001 50 S4MW00LD0 SHANDOP 5 SLLEZL 442 447 SSLbZL e 292 21 252 1 292 Figure 22 RPM4 HPMS AF Assembly 2007 DH Instruments a Fluke Company Page 127 RPM4 HPMS A70M A20M AF OPERATION AND MAINTENANCE MANUAL NOTES 2007 DH Instruments a Fluke Company Page 128 6 TROUBLESHOOTING DH Instruments A Fluke Company 6 TROUBLESHOOTING RPM4 is a sophisticated pressure setting and measuring instrument with advanced on board features and functions Before assuming that unexpected behavior is caused by a system defect or breakdown the operator should use this manual and other training facilities to become thoroughly familiar with RPM4 operation This troubleshooting guide is intended as an aid in identifying the reason for RPM4 behavior and determining w
62. Cal gt Select the desired Q RPT The lt 1view gt selection displays the calibration information fields The lt 2edit gt function displays the fields and allows them to be edited The display is 1 2 1 Date of last calibration in YYYYMMDD format Cal date 20050425 Hi 2 Position designator of the Q RPT being viewed AbsPoffset 2410 Pa 3 Current value of absolute mode Por 3 If in edit mode the calibration information fields can be edited Edits to are common with the AutoZ edit or run function see Sections 3 3 9 3 5 1 Pressing ENT on the last field goes to the next view edit screen 1 2 1 Value of PA 0 0 Pa Hi 2 Position designator of the Q RPT being viewed 3 Value of PM PM 1 000000 If in edit mode the calibration fields be edited If the selected Q RPT is Q RPT pressing ENT in the PM field goes to the next calibration information display this display is skipped if the Q RPT is a Gxxx or BGxxx type 1 1 Position designator of the Q RPT being viewed Allow absolute Hi 2 Cursor is on current ON or OFF selection meas mode lon 2off 2 The cursor is on the current setting If in edit mode the or OFF status changed by selecting 10n or lt 2off gt see Section 5 3 5 ENT in view mode returns to the view edit screen ENT in edit mode goes to confirmation of change activation if changes have been made in any
63. EEE gt to view and edit IEEE 488 settings see Section 3 5 2 2 e Select lt 4format gt to select the remote communications command format see Section 3 5 2 3 Select lt 5RS232test gt to run the COM1 and COM2 communications test see Section 3 5 2 4 2007 DH Instruments a Fluke Company Page 58 3 OPERATION 3521 lt 2COM2 gt The can be set for specific communications settings The settings are baud rate parity data bits and stop bits The available options are Baud 300 600 1 200 2 400 4 800 9 600 19 200 28 800 38 400 Parity NONE ODD or EVEN Length 7 or 8 Stop Bit 10r2 The default is lt 2 400 E 7 1 for both COM1 and COM2 The user can also specify one or two termination characters referred to as Term1 and Term2 as well as define these characters These define the characters that mark the end of commands that are sent to the RPM4 as well as mark the end of replies sent back to the host computer The RPM4 typically uses the lt Term1 gt character to mark the end and will ignore the lt Term2 gt character The characters can be any decimal number from 1 to 255 The defaults are 13 carriage return and lt 10 gt line feed and usually should not be changed 3522 lt 488 gt The IEEE 488 port s primary address can be set from 1 to 31 in this screen The factory default value is 10 Secondary addressing is not used or supported This address must not confl
64. ER FOOTSWTCH Operating the footswitch is the equivalent of pressing ENT on the front panel The remote ENTER feature can be particularly convenient when running AutoTests see Section 3 3 10 in which the operator s hands are not free or attention is on the device under test rather than the RPM4 3 L4 SOUNDS RPM4 is equipped with a variable frequency tone device to provide audible feedback and alarms The beeper is used for the following indications Valid key press Brief beep Choice between three frequencies or NO sound is available see Section 3 5 5 2 Invalid key press Descending two tone Change HPMS Lo Q RPT Four one second beeps see Section 3 2 5 3 3 1 shut off valve setting Leak check completed Three two second beeps see Section 3 3 5 Upper or lower limit exceeded Intermittent one second beeps see Section 3 4 4 Pmax overpressure limit Eight second high frequency beep see Section 3 4 4 1 exceeded Hi Q RPT is selected but Lo Intermittent two second high frequency beep The audible Q RPT is being pressurized alarm is combined with flashing of the red Lo Q RPT Active LED on the HPMS see Section 3 2 5 3 3 1 AutoTest in out of tolerance Ascending triad descending triad see Section 3 3 10 reading 3 2 GENERAL OPERATING PRINCIPLES 3 2 1 PRESSURE READY NOT READY There is a Heady Not Ready indicator LED on the RPMA front panel It is intended to provide the user with a clear and objectiv
65. F OPERATION AND MAINTENANCE MANUAL 5 6 HPMS MAINTENANCE There are no HPMS maintenance procedures other than the overhaul procedure 5 6 1 OVERHAUL RPM4 HPMS A7OM A20M AF is generally overhauled as one common assembly Removal of RPM4 from the HPMS is not recommended unless required to perform RPM4 and or HPMS repairs See Section 5 4 1 if it is necessary to remove the RPM4 from the HPMS Any or all of the following items may be included as part of an RPM4 HPMS 70 20 AF overhaul Check that RPM4 rear panel mounted cooling fan operates when RPM4 is powered Clean and inspect HPMS rear panel TEST port connection Check that internal fittings screws bolts and nuts are tight Perform system leak and operational check Check Lo Q RPT pressure relief valve for proper operation It should crack at about 3 300 psi Do not apply pressure greater than 3 600 psi to the RPM4 Lo G RPT as it may be damaged beyond repair The RPM4 warranty does not cover damage due to Q RPT overpressure Clean RPM4 and HPMS front panel Verify that RPM4 internal barometer reads atmospheric pressure within 0 15 psi 1 kPa Adjust if necessary See Section 5 2 2 Perform calibration of quartz reference pressure transducers Q RPTs if necessary see Section 5 3 2007 DH Instruments a Fluke Company Page 124 5 MAINTENANCE ADJUSTMENTS AND CALIBRATIONS 5 7 HPMS ILLUSTRATED PARTS BREAKDOWN Table 27 HPMS Assembly Illustrated Parts
66. Full scale Establish span Operator specified Maximum pressure of None maximum during AutoRange AutoTest definition Select most Q PRT with lowest G PRT with lowest appropriate Q RPT to default full scale that is default full scale that is cover range and mode greater than the greater than the AutoRange full scale maximum pressure of AutoTest definition Upper limit Set maximum pressure 105 96 of AutoRange 105 of maximum alarm limit full scale pressure pressure of AutoTest definition Resolution Set display resolution 10 ppm of AutoRange 1096 of DUT tolerance span or or 1 ppm of default Q 1 ppm of default Q RPT span whichever is RPT span whichever is larger larger Stability Limit Set Ready Not Ready 50 ppm of AutoRange 1096 of DUT tolerance stability criterion span or 2 ppm of or default Q RPT span 2 ppm of default Q whichever is larger RPT span whichever is larger 2007 DH Instruments a Fluke Company Page 28 3 OPERATION O OPERATION To use the AutoRange function press AutoRange and respond to the RPM4 s prompts Select AutoRange measurement mode The screen is identical in appearance function to the MODE screen see Section 3 3 3 Select pressure unit of measure The screen is identical in appearance and function to the UNIT screen see Section 3 3 2 Enter the AutoRange full scale pressure Enter the full scale pressure value in the lt gt entry field and press ENT
67. H Instruments of that product or brand This manual was originally composed in English and was subsequently translated into other languages The fidelity of the translation cannot be guaranteed In case of conflict between the English version and other language versions the English version predominates Products described in this manual are manufactured under international patents and one or more of the following U S patents 5 142 483 5 257 640 5 331 838 5 445 035 Other U S and international patents pending AutoRange AutoZ DH Instruments DH DHI CalTool COMPASS GPC1 1000 PGC 1000 AF RPM4 QDUT Q RPT RPM4 and SDS are trademarks registered and otherwise of DH Instruments a Fluke Company Document No 550136b 01 070627 Printed in the USA 2007 DH Instruments a Fluke Company TABLE OF CONTENTS DH Instruments TABLE OF CONTENTS TABLE OF CONTENTS cranes no acad riu dua ai uet a wg eraat dot a fiia raa owe V FIGURES v aana o CDD VI ABOUT THIS MANUAL sic ule sl A a A VII 1 INTRODUCTION da dva vada au os 1 1 1 PRODUCT OVER V EV 1 PER delle ln 2 i124 GENERAL SPEGIPIGATIONSIL iris a o o ooo o 2 1 22 PRESSURE MEASUREMENT SPECIFICATIONS ssnsnraneneenonnnnnnnnnnn menene 3 1 221 QUARTZ REFERE
68. Hi RPT is selected with the Lo Q RPT active RPM4 goes into an alarm condition to avoid accidental overpressure of the Lo Q RPT while using a Hi Q RPT The pressure on the Lo Q RPT must be reduced to less than 30 psig 200 kPa so that the CAUTION LO G RPT ACTIVE LED is OFF before shutting the Lo Q RPT shut off valve and selecting the Hi Q RPT The HPMS pressure relief valve Figure 10 Ref 3 is set to open at 110 of the RPM4 Lo Q RPT maximum range When the pressure applied to the Lo RPT reaches approximately 3 300 psi 23 MPa the pressure relief valve will open exhausting gas to atmosphere and reducing pressure Prior to opening the pressure relief valve the RPM4 will have gone into an overpressure condition see Section 3 4 4 1 If an overpressure condition occurs reduce pressure as soon as possible The pressure relief valve will reseat automatically and close when pressure is reduced Do NOT overpressure the Lo Q RPT The Lo Q RPT may be damaged beyond repair by pressure greater than 3 300 psi 23 MPa Q RPT damage from overpressure is logged in user and factory maintenance pages and is not covered by the product warranty The HPMS pressure relief valve should only be considered a last resort means of protecting the Lo Q RPT Following proper operating procedures the Lo Q RPT should never be overpressured Page 21 2007 DH Instruments a Fluke Company RPM4 HPMS A70M A20M AF OPERATION AND MAINTENANCE MANUAL RP my Ref
69. IL Lo Q RPT is used Example Cmd sent ARANGE2 50 psi A range of 50 psi in absolute mode on enhanced the Lo Q RPT Query reply 50 000 psi A IL No reply if GPIB 488 Example Cmd sent ARANGE IH Hi Q RPT s previous range made active enhanced 500 000 kPa A IH No reply if GPIB 488 Query reply Errors ERR 6 Range maximum pressure exceeds available Q RPTs or is negative ERR 10 RPT specified by the optional suffix is not valid for the current operating conditions ERR 19 Cannot Range to 0 with absolute units ERR 20 Cannot Range to 0 with gauge units ERR 29 Correct type of Q RPT for the selected Mode is not available ERR 53 RPT specified is not available See Also RPT RANGE MMODE UNIT 3 3 4 3 2 3 3 3 3 3 3 2 ATM Purpose Reads the next measured pressure from RPM4 s on board barometer if present Query ATM Classic ATM Remarks The atmospheric pressure as measured by the RPM4 on board barometer is returned in the current pressure units of the active Q RPT always absolute This measurement is followed by the units text Not all RPM4s are equipped with an on board barometer Example Query sent ATM enhanced Query reply 97 12348 kPa Example Sent classic Reply 97 12384 kPa a Errors ERR 23 RPMA is not eguipped with a barometer See Also 3 5 7 1 3 2 2 Page 81 2007 DH Instruments a Fluke Compan
70. ION READYCKN Purpose Read or setthe Ready check flag Command READYCKn 1 Query READYCKn Classic READYCKn 1 READYCKn Optional Suffix The active Q RPT is assumed if suffix is given 47 Specify the Hi Q RPT 2 Specify the Lo Q RPT Remarks The internal ready check flag is cleared whenever the specified or active Q RPT reaches a Not Ready NR condition The READYCK query returns the status of the flag The flag is set by sending the HEADYCK 1 program message while the Q RPT is in a Ready condition The READYCK program message query can then be used at a later time to determine whether a Not Ready condition has occurred since the ready check flag was set Example sent READYCK1 1 enhanced Query reply 1 no reply if GPIB 488 Example sent READYCK1 enhanced Query reply Example sent READYCK enhanced Query reply 1 if Q RPT condition has stayed Ready 0 if Q RPT condition has NOT stayed Ready Example Sent READYCK 1 classic Query reply READYCK 1 Example Sent READYCK classic Query reply READYCK 1 if Q RPT condition has stayed Ready READYCK 0 if Q RPT condition has NOT stayed Ready Errors ERR 6 Argument is not a 0 ora 1 See Also SR 3 2 1 REMOTE Purpose Lock out the front
71. L2 enables classic mode L3 enables enhanced mode Defaults L2 Classic mode Remarks The user can select the type of remote command format using these simplified commands There is no query format This format must agree with the format sent to the RPM4 This command is a replacement for the MSGFMT command Example sent L3 enhanced Query reply L3 No reply if IEEE 488 Example Sent L2 classic Reply L2 See Also MSGFMT 4 3 3 5 2 3 LOCAL Purpose Returns control to the RPM front panel Command LOCAL Classic LOCAL Remark The REMOTE program message can lock the front panel out completely The user can return to local operation by sending the LOCAL program message sending the IEEE 488 GTL command if in enhanced format or by cycling RPM4 power Example sent LOCAL enhanced Reply LOCAL no reply if IEEE 488 Example sent LOCAL enhanced Reply LOCAL Example Sent LOCAL classic Reply LOCAL See Also REMOTE MEM Purpose Read the status from the power up memory test Query MEM Classic MEM Remarks The RPM4 system memory stores the user settings units resolution and retains them when the unit is OFF On power up this memory is checked If this memory is corrupted all user settings are reset to default and the MEM status is set to reflect this Example Query sent MEM enhanced Reply 0
72. MSS Master Summary Status Bit 6 64 Indicates that an event or events occurred that caused the RPM4 to request service from the Host much like the RQS bit Unlike the RQS bit it is READ ONLY and can be only cleared when the event s that caused the service request are cleared ESB Event Summary Bit 5 32 Indicates if an enabled bit in the Standard Event Status Register became set see Section 4 5 3 2007 DH Instruments a Fluke Company Page 98 MAV ERROR RSR 4 5 3 4 REMOTE OPERATION Message Available Bit 4 16 Indicates that at least one reply message is waiting in the RPM4 IEEE 488 output queue Error Queue Not Empty Bit 2 4 Indicates that at least one command error message is waiting in the RPM4 IEEE 488 error message queue Use the ERR query to get this message Ready Summary Bit 0 1 Indicates that an enabled bit in the Ready Status Register became set STANDARD EVENT REGISTER The RPM4 contains an 8 bit Standard event register that reflects specific RPM4 events Enabled events in this register will set or clear the ESB bit of the Status Byte Register Table 17 8 bit standard event register PON CMD EXE DDE QYE RAC OPC 128 64 32 16 8 4 2 1 This register be read using the ESR query Each of these status bits can set the ESB bit of the Status Byte Register causing a SRQ to occur IF the ESB bit is enabled to do so The Standard Event Status E
73. N m 11 2 4 5 5 o rn nn RR REN nn 11 2 4 6 TEST PORT m iena 11 2 4 6 1 THE ATM PORTS OF RPMS tendo VENA inu 12 2 4 7 CHECK SET SECURITY LEVEL 12 2 4 8 SETTING UP AUTOTEST FILES 0422240 12 2 5 POWER UP AND 13 2 5 1 SWITCH POWER delP a a 13 2 5 2 CHECK PRESSURE MEASUREMENT OPERATION nen 13 2 5 2 1 CHECKING ABSOLUTE MODE PRESSURE 13 2 5 2 2 CHECKING GAUGE MODE PRESSURE 000000 13 2 6 SHORT TERM STORAGE 72er 14 27 LONG TERM STORAGE AND OR PREPARATION FOR SHIPPING 14 25 OPERATION NA a a a MERE 15 3 1 USER INTERFACE 3 1 1 MAIN RUN SCREEN 3 1 2 FUNCTION DATA KEYPAD LAYOUT AND PROTOCOL 3 1 3 REMOTE ENT ENTER FOOTSWITCH 3 1 4 SOU
74. NCE PRESSURE TRANSDUCERS Q RPT sentent 3 122 2 ON BOARD BAROMETER sos valejach edition no nd ob ikea 3 2 INSTALLATION 5e bos r d RIA O 5 2 1 2 2 0 a napln 5 2 1 1 REMOVING FROM PACKAGING 1 242 0 5 2 1 2 lkidgzei cie dgr 6 2 2 PGC 10000 AF SYSTEM cascade stcevecaetvadcunsuesvauer catlecedtessateecocenesusttncrss 6 2 3 SITE REQUIREMENTS iUa ea ani 7 x MERDIIe X 8 2 4 1 PREPARING FOR OPERATION 2 2 RH HRY HR ER 8 2 4 2 RPM4 HPMS FRONT REAR AND SIDE 5 1 ns nn 8 2 4 2 1 RPM4 HPMS FRONT VIEW triasu 8 2 4 2 2 RPM4AFIPMS REAR VIEW sa ea tere da 9 2 4 2 3 RPMA HPMS SIDE V EW rette ro lan 10 2 4 3 RPM4 FRONT AND REAR 10 2 4 3 1 RPM4 FRONT PANEL eror morc tert rente eee vir DERE SE LA ED HI De LA SEXY cadens TY TERES 10 2 4 3 2 ERR Ripe exei dise lei 11 2 4 4 POWER CONNECTIO
75. NDS Page 2007 DH Instruments a Fluke Company RPM4 HPMS A70M A20M AF OPERATION AND MAINTENANCE MANUAL 3 2 GENERAL OPERATING PRINCIPLES eerte tenete tette tette tentes tenta tetas 18 3 2 1 PRESSURE READY NOT READY u sisersssssnnnnuzonnnu temne nn nn nn nn nen 18 3 2 2 GAUGE MODE DYNAMIC COMPENSATION FOR ATMOSPHERIC PRESSURE 19 3 2 23 MULTIPE RANGES 0 RPTS AUTORANGE AND INFINITE RANGING 2419 3 2 4 AUTOMATED TEST AND CALIBRATION SEQUENCES cssssssssssssssscsssssssssssesssssssecssssseessssnseessssseessssse 20 3 25 HIGH PRESSURE MOUNTING SYSTEM ertt nn nn nn ene 20 3 26 DIRECT FUNCTION KEYS SUMMARY 3 3 DIRECT FUNCTION 0 3 3 1 3 3 2 UNIT 3 3 3 MODE 3 3 4 3 3 5 CK 3 3 6 DISPLAY 3 3 6 1 AVG AVERAGE 3 3 6 2 3 3 6 3 DEV DEVIATI 3 3 6 4 RPT 3 3 6 5 HI LO 3 3 6 6 FREEZE 8 86 7 CLEAN 3 37 HEAD 3 88 SDS 230 AUTOZ 3 3 9 1 AUTOZ IN GAUGE 3 3 9 2 AUTOZ IN ABSOLUTE 3 3 10 ENT RUN AUTOTEST 3 3 10 1 INITIALIZATION 3 3
76. ODE see Section 3 3 3 PRINCIPLE RPMA allows the unit of measure in which pressure values are displayed to be changed RPM4 A70M A20M AF supports 13 standard pressure units of measure as well as user defined units To simplify operation guick access to six units is made available under the UNIT key The UNIT key contents can be customized by the user to any configuration of six units see Section 3 5 6 s Internally 4 always operates in Pascal Pa the SI unit of pressure Values of pressure are represented in other units by the application of conversion factors to convert from Pa see Section 7 1 1 O OPERATION To change the active pressure unit of measure for a range press UNIT from the MAIN RUN screen while the range is active The display is The cursor is on the number corresponding to the active pressure unit of measure for the active range To change the pressure unit of measure select the desired unit Making the selection returns to the MAIN RUN screen with the selected unit active s The pressure unit of measure selected is range specific When in a given range all functions and settings are represented in the current measurement unit for that range However certain internal and or metrological functions e g Q RPT calibration coefficients are always represented in Pa regardless of the current range unit s See Section 7 1 1 for tables of the conversion factors used by RPM4 s If the press
77. PM4 bottom panel Remove the four plastic feet by sliding the away from the case Do not pull them straight up as this will damage their retaining tab While holding the bottom panel and cover together turn the RPM4 over and place it bottom side down Lift the top cover off of the bottom panel leaving the front and rear panels behind with the bottom panel The front and rear panel fit into guide slots on the top cover To reassemble reverse the procedure Before putting the cover on check that the front is well seated in its guide slots on the bottom panel 5 4 3 RELOADING EMBEDDED SOFTWARE INTO FLASH MEMORY RPM4 uses FLASH memory This allows the embedded software that controls RPM4 operations and functions to be loaded into RPM4 over its port from a computer with a simple FLASH loading utility program To replace corrupted software or upgrade your software access the DHI web site at www dhinstruments com and go to SOFTWARE FLASH loading utility and the latest RPMA software are available for download at no charge If you do not have access to the Page 115 2007 DH Instruments a Fluke Company RPM4 HPMS A70M A20M AF OPERATION AND MAINTENANCE MANUAL web or have difficulty downloading or loading software contact your DHI representative or a DHI Authorized Service Provider see Table 23 for assistance If you believe you have discovered an error or bug in RPM4 software please report it with comple
78. Purpose Read or set the Ready Status Enable Register Command RSE m Query RSE Default RSE 0 Arguments n 0 to 255 This is the decimal representation of the bit s to enable To enable the RDY bit the argument would be 1 Remarks The Ready Status Enable Register determines which bits in the Ready Status Register are enabled and included in the Status Byte Register RSR bit and can assert the SRQ line The reply is in decimal numeric form Example Sent RSE 1 enables the RDY bit enhanced Query reply 1 no reply if IEEE 488 Errors ERR 6 nis not valid RSR Purpose Read the Ready Status Register Command RSR Remarks The Ready Status Register contents are cleared after reading The reply is in decimal numeric form Example Sent RSR enhanced Reply 6 The MEAS and NRDY Page 103 2007 DH Instruments a Fluke Company RPM4 HPMS A70M A20M AF OPERATION AND MAINTENANCE MANUAL NOTES 2007 DH Instruments a Fluke Company Page 104 5 MAINTENANCE ADJUSTMENTS AND CALIBRATIONS DH Instruments A Fluke Company 5 MAINTENANCE ADJUSTMENTS AND CALIBRATION 5 1 OVERVIEW RPM4 A70M A20M AF was designed for maintenance free operation No maintenance is required other than e Regular AutoZeroing of quartz reference pressure transducers Q RPTs See Section 3 5 1 e Periodic calibration of Q RPTs see Section 5 3 e Adjustment of the on board barometer see
79. Q RPTs and maximizing the recalibration interval by compensating for zero drift between full recalibrations The following simple recommendations will help assure that you use this feature to best advantage e In gauge mode Always leave AutoZ ON Use AutoZ to run AutoZ whenever RPM4 is vented and displays a significantly non zero value Wait at least 2 minutes after venting before running AutoZ e In absolute measurement mode Always leave AutoZ ON Use AutoZ to run Autoz every approximately every 30 days or when RPM4 has been exposed to a temperature change exceeding 15 C 36 F AutoZero the Lo Q RPT against a barometer with measurement uncertainty of 0 04 psi 275 Pa or better note that this is only 0 3 of atmospheric pressure so a relatively low accuracy barometer is adequate AutoZero the Hi Q RPT against the Lo Q RPT Wait 5 to 10 minutes before running AutoZero in absolute mode OPERATION s The AutoZ function and values are Q RPT AND measurement mode gauge or absolute specific s To RUN the AutoZ routine that rezeroes the Q RPT use AutoZ see Section 3 3 9 To access the RPM4 AutoZ function press SPECIAL lt 1AutoZ gt The display is 1 Active Q RPT designator 4 b 2 Indication of active measurement mode lt abs gt for absolute loff 2view Hi lt gage gt for gauge 3edit abs ON 3 Indication of whether AutoZ is currently ON or OFF for this Q RPT and measurement mode 2 3 Select lt
80. RPM4 data corrupted and was set to factory defaults 1 The memory was found to be on power up Example Sent MEM classic Reply MEM 0 RPMA data corrupted and was set to factory defaults MEM 1 The memory was found to be OK on power up See Also 3 5 9 3 5 7 5 2007 DH Instruments a Fluke Company Page 86 4 REMOTE OPERATION MMODEn Purpose Read or change the active measurement mode Command MMODEn mode Query MMODEn Classic MMODEn mode MMODEn Optional Suffix The active Q RPT is assumed if no suffix is given 47 Specify the Hi Q RPT 2 Specify the Lo Q RPT Arguments Mode A Absolute mode G Gauge mode s Measured pressure values are returned with g to identify measurement mode for both gauge and negative gauge measurement modes Differential mode restricts access to settings on the Lo Q RPT Remarks The measurement mode can also be set using the UNIT command but the UNIT command does not distinguish between gauge and negative gauge in it s reply while the MMODE does Measurement mode is range specific Example sent MMODE A enhanced Query reply A No reply if IEEE 488 Example sent MMODE A enhanced Query reply A Example sent MMODE G enhanced Query reply G Errors ERR 6 Invalid argument text
81. RPM4 on a flat stable surface at a convenient height The front feet can be extended so that the unit can be inclined for easier viewing Consider the placement of the FOOT SWITCH which may need to be accessed frequently while running calibrations Support facilities required for RPM4 HPMS A70M A20M AF include an electrical power source of 85 to 264 VAC 47 to 440 Hz Page 7 2007 DH Instruments a Fluke Company RPM4 HPMS A70M A20M AF OPERATION AND MAINTENANCE MANUAL 24 SETUP 2 4 1 PREPARING FOR OPERATION To prepare RPM4 for check out and operation Remove the plastic plug from the RPM4 HPMS rear panel TEST connection Remove the protective plastic sheet from the front panel display e Familiarize yourself briefly with the RPM4 and HPMS front and rear panels see Sections 2 4 2 2 4 3 24 2 FRONT REAR AND SIDE VIEWS 242 1 RPMYHPMS FRONT VIEW 1 RPMY Reterence Pressure Monitor atta gt rae DHI instruments inc CAUTION 2 5 LO Q RPT ACTIVE 40000 psi 4 LO Q RPT 4 SHUT OFF RPMH HPMS 3 1 RPM4 AZOM A20M AF Reference Pressure Monitor 4 Lo Q RPT active valve position LED 2 Lo shut off valve position LED 5 Lo Q RPT active caution LED 3 Lo shut off valve Figure 2 RPM4 HPMS front view 2007 DH Instruments a Fluke Company Page 8 2 4 2 2 DH Instruments Inc 4765 East Beautiful Lane Phoenix AZ 85044 5318
82. SPLAY s See Section 3 3 6 O Principle O OPERATION s For the sake of clarity when describing the RPT DISPLAY the Q RPT displayed on the top line of the display when the RPT function is selected is referred to as the active Q RPT The other Q RPT to be displayed on the second bottom line of the RPM4 display is referred to as the inactive Q RPT It is inactive in the sense that all RPM4 functions and settings such as UNIT and RES still apply to the active Q RPT To make changes to the inactive Q RPT for example to change its pressure measurement unit it must be made the active Q RPT by a conventional range change see Section 3 3 1 To activate the RPT DISPLAY press DISPLAY lt 4RPT gt Operation returns to the MAIN RUN screen with the inactive Q RPT displayed on the display s bottom line The range of the inactive Q RPT is always the default range not an AutoRanged range see Section 3 2 3 Page 35 2007 DH Instruments a Fluke Company RPM4 HPMS A70M A20M AF OPERATION AND MAINTENANCE MANUAL With the RPT DISPLAY active the main run screen is 1 1 Active Q RPT display 2 Inactive Q RPT display with Ready Not Ready 2010 66 psi a zHi indicator on far left lt gt indicates Ready 14 27 psi g zLo 2 s When the RPT display is active executing a range change to a range on the inactive Q RPT makes the inactive Q RPT the active Q RPT The DISPLAY defaults back to Rate Sect
83. Sections 5 2 2 From a maintenance calibration and repair point of view the RPM4 and HPMS are treated as separate sub systems A RPM4 HPMS A7OM A2OM AF is a sophisticated pressure measuring instrument with advanced on board features and functions Before assuming that unexpected behavior is caused by a system defect or failure use this manual and other training facilities to become thoroughly familiar with RPM4 operation For rapid assistance in specific situations see Chapter 6 for troubleshooting information s RPM4 is covered by a limited one 1 year warranty Unauthorized service or repair during the warranty period is undertaken at the owner s risk and may cause damage that is not covered under warranty and or void the warranty For warranty service contact a DHI Authorized Service Provide see Table 23 5 2 MAINTENANCE 5 2 1 AUTOZERO OF Q RPTS See Section 3 5 1 for complete information on Autozeroing of RPTs 5 211 GAUGE MODE AUTOZERO Since gauge mode AutoZeroing is so easily performed it is good practice to AutoZero whenever the RPM4 is vented open to atmosphere Before AutoZeroing allow at least two minutes for full system stabilization after venting be sure that the pressure applied is truly zero the RPT is truly vented connected to atmosphere with no back pressure and be sure to consider the influence of fluid heads To cause the range to Autozero press AutoZ Page 105 2007 DH I
84. See Also L2 L3 4 3 3 5 2 3 Page 87 2007 DH Instruments a Fluke Company RPM4 HPMS A70M A20M AF OPERATION AND MAINTENANCE MANUAL PCALn Purpose Read or set the calibration information for the Hi or Lo Q RPT Command PCALn adder mult CalDate Query PCALn Classic PCALn adder mult CalDate PCALn Defaults PCALn 0 0 1 0 19800101 Optional Suffix n The active Q RPT is assumed if no suffix is given The Hi Q RPT is assumed if the HL Q RPT is active and no suffix is given 47 Specify the Hi Q RPT Z Specify the Lo Q RPT Arguments Adder The G RPT calibration adder PA In Pascal Mult The G RPT calibration multiplier PM from 0 1 to 100 CalDate The date of the calibration in the format YYYYMMDD by default Any other format up to 8 characters long is also accepted and the replied format is in th previously entered format Remarks The user defined pressure calibration information for the specified Q RPT Hi or Lo can be accessed with this program message The HL Q RPT does not have its own calibration information Using this program message overwrites the current calibration coefficients so caution must be used Changes made using this program message take effect immediately For compatibility with the obsolete style PPC3 PCAL HI and PCAL LO commands HI and LO can be used in place of the s
85. TENANCE MANUAL being AutoZeroed Given the high pressure range of the RPM4 Q RPTs adequate uncertainty is easily available from a variety of digital barometers or for the Hi Q RPT by the Lo Q RPT In absolute measurement mode with AutoZ ON absolute pressure is calculated as Pabs Py z In absolute measurement mode running the AutoZ function to update the AutoZ value is initiated by the operator using AutoZ see Section 3 3 9 1 AutoZ in gauge measurement mode dynamic compensation for atmospheric pressure The RPM4 A70M A20M AF Q RPTs are intrinsically absolute but they are also used in gauge measurement mode difference from atmosphere Gauge measurement mode is achieved by subtracting the value of atmospheric pressure from the Q RPT s absolute reading using AutoZ and by dynamically compensating for changes in atmospheric pressure between opportunities for AutoZ to execute see Section 3 2 2 O PRINCIPLE In gauge measurement mode the value of is always zero gauge pressure Zero gauge pressure by definition is applied to the Q RPT when it is vented to atmosphere Gauge pressure is the measured absolute pressure Py minus Pottset c Pgauge Py T When AutoZ is ON dynamic compensation for atmospheric pressure is also applied to compensate for changes in atmospheric pressure as measured by RPM4 s on board barometer APaim between AutoZ updates see Section 3 2 2 The me
86. active range of RPM4 when ENT was pressed displays 0 00 by F 4420 7 default when Freeze DISPLAY is first activated 1 Pressing ENT causes the current pressure measured by the active RPM4 to be captured and displayed s If the pressure measurement unit mode or range is changed while the Freeze DISPLAY is active the Freeze value defaults back to zero s To go to a DISPLAY other than Freeze press DISPLAY and make a new DISPLAY choice see Section 3 5 6 3367 Clean O PURPOSE To activate the Clean DISPLAY s See Section 3 3 6 O Principle O OPERATION To activate the Clean DISPLAY press DISPLAY lt 7Clean gt Pressing lt 7Clean gt returns to the main run screen with the Clean DISPLAY active With the Clean DISPLAY active the main run screen is 1 1 Conventional main run screen first line 99 76 psi a zHi s To go to a DISPLAY other than Clean press DISPLAY and make a new DISPLAY choice see Section 3 5 6 2 Clean second line Page 37 2007 DH Instruments a Fluke Company RPM4 HPMS A70M A20M AF OPERATION AND MAINTENANCE MANUAL 3 3 7 HEAD O PURPOSE To cause a pressure fluid head correction to be added to or subtracted from the pressure measured by the RPM4 reference pressure transducer in order to predict the pressure at a height other than the RPM4 HPMS s reference level O PRINCIPLE RPM4 HPMS measures gauge or absolute pressure at the height of the rear p
87. aipm com European Union Ohte Giken Inc Technology Center 258 1 Nakadai Kasumigaura machi Niihari Gun Ibaraki 300 0133 Page 135 Tel 81 29 840 9111 Fax 81 29 840 9100 tech ohtegiken co jp Japan Asia 2007 DH Instruments a Fluke Company RPM4 HPMS A70M A20M AF OPERATION AND MAINTENANCE MANUAL NOTES 2007 DH Instruments a Fluke Company Page 136 9 GLOSSARY DH Instruments A Fluke Company 9 GLOSSARY A type of Q RPT with a built in vacuum reference that is intrinsically absolute e g A10M Axxx Q RPTs support absolute gauge and negative gauge measurement modes Absolute Mode Measurement mode in which the Q RPT indicates absolute pressure difference from vacuum Active Q RPT The Q RPT that is currently selected to be displayed on the top line of the RPM4 display Most function selections affect the active Q RPT A function that optimizes RPM4 measurement and control for a specific user defined AutoRange range of operation AutoRanged Range An RPM4 pressure measurement range created using the AutoRange function AutoTest or ATest RPM4 on board automated testing sequences and their results AutoZero or AutoZ A process by which a Q RPT and measurement mode is rezeroed offset relative to a standard Barometer 45 on board atmospheric pressure measuring sensor Also referred to as on board barometer A type of Q RPT that is intrinsically gauge and is capable of ope
88. also supports many commonly used units other than those included in the default set up These units can be made available for active selection by customizing the UNIT function using SPECIAL lt 6PresU gt This allows RPM4 to offer a very wide selection of units while simplifying day to day operation The typical user Page 65 2007 DH Instruments a Fluke Company RPM4 HPMS A70M A20M AF OPERATION AND MAINTENANCE MANUAL customizes the UNIT function key to support his her most commonly used units Up to six units can be included in the UNIT screen O OPERATION To customize the UNIT function key press SPECIAL lt 6PresU gt from the MAIN RUN screen The display is 1 Entry field to specify which unit position 1 to 6 of the UNIT function key menu is to be changed Set up unit 6 Enter the number of the unit position that you would Unit 6 151I 2other like to change The display becomes 3altitude 4user Select the desired pressure unit category SI units include units based on SI units such as mmHg then select the desired unit from the unit menu Note lt 3altitude gt is not available in this RPM4 model The units of measure available are listed in Table 7 Table 7 UNIT function available units of measure lt 20THER gt lt 3ALTITUDE lt 4USER gt gt lt 1Pa gt lt 1psi gt Not available lt 2hPa gt lt 2psf gt in this RPM4 lt 3kPa gt lt 3inHg gt model lt 4MPa gt lt 4inWa gt lt 5mbar gt lt 5
89. anced Query reply 0 01 kPa s Example Sent RATE2 classic Reply 0 03 kPa s See Also PRR QPRR READRATE 3 3 6 2 READRATEn Purpose Read or set the specified or active Q RPT read rate or auto read rate mode Command READRATEn period Query READRATEn Classic READRATEn period READRATEn Optional Suffix The active Q RPT is assumed if no suffix is given 47 Specify the Hi Q RPT 2 Specify the Lo Q RPT Arguments period Period to integrate the measurement over ms Can be from 200 ms to 20000 ms Set to 0 to enable automatic read rate Remarks The RPM4 can have the speed in which it integrates each measurement read rate automatically adjusted based on the rate or it can manually set to a fixed period Increasing the read rate increases the reply time for pressure and rate queries In differential mode and when using the HL Q RPT the Lo Q RPT read rate is always set to the same read rate as the Hi Example sent READRATE 1000 enhanced Query reply 1000 No reply if GPIB 488 Example sent READRATE 1000 enhanced Query reply 1000 Example Sent READRATE 1000 classic Reply 1000 Errors ERR 6 The period argument is out of range ERR 10 The suffix n is invalid See Also PR PRR SR 3 5 7 2 2007 DH Instruments a Fluke Company Page 90 4 REMOTE OPERAT
90. anel TEST port Frequently when performing a calibration or test the device or system under test is at a different height than the RPM4 HPMS s TEST port This difference in height frequently called head can cause a significant difference between the pressure measured by the RPM4 HPMS at its TEST port height and the pressure actually applied to the device under test which is at a different height In this case it is useful to make a head correction to the pressure measured by the RPM4 in order to predict the pressure actually applied at a different height RPMA can accurately determine head pressures for gases nitrogen helium and air and liquids oil water as the pressurized medium In calculating the head value standard gravity 9 80665 m s is used Gas densities are calculated from the selected gas s standard density correcting for temperature of 20 and the measured pressure using the gas s compressibility factor to 100 MPa 15 000 psi and extrapolated above 100 MPa Oil density is taken to be 850 kg m the density of typical calibration oils at 20 C Water density is taken to be 998 2321kg m 20 C A custom liquid density may also be specified The HEAD function key is used to specify the height difference between the RPM4 HPMS TEST port and another height Entering a height of zero turns the function off The height units and the test medium can be changed using SPECIAL lt 3Head gt see Section 3 5 3 s As a
91. ansducers Q RPT modules to measure pressure The Q RPTs can measure absolute and gauge pressure Gauge pressure is defined by offsetting atmospheric pressure and applying dynamic compensation for atmospheric changes using the on board barometer see Section 3 2 2 Warm Up Time 30 minute temperature stabilization recommended from cold power up Compensated Temperature Range 5 to 35 C Operating Temperature Range 8 to 28 C A20M Q RPT A70M QRPT Maximum Range 3 000 psi 20 MPa 10 000 psi 70 MPa user adjustable to 1 ppm of Q RPT maximum or 10 ppm of active AutoRange whichever is larger 0 0175 96 of reading or 0 44 psi whichever Resolution Precision 0 0175 of reading or 0 13 psi whichever is larger is larger Predicted Stability 0 004 of reading Measurement Uncertainty 0 02 96 of reading or 0 02 of reading or 0 15 psi whichever 0 5 psi whichever is larger is larger Combined linearity hysteresis repeatability 2 Predicted Q RPT measurement stability limit k 2 over one year assuming regular use of AutoZero function As stability can only be predicted and varies from Q RPT to Q RPT stability for a specific Q RPT should be established from experience 3 Maximum deviation of the Q RPT indication from the true value of applied pressure including precision predicted one year stability temperature effect and calibration uncertainty assumes calibration reference uncertainty of 0 005 of readi
92. any RPM4 HPMS A70M A20M AF OPERATION AND MAINTENANCE MANUAL PAN As editing PA and PM values changes Q RPT calibration they should only be edited by qualified personnel as part of the calibration process Caution should be taken to avoid accidental editing and a security system is available to prevent access see Section 3 5 5 5 Incorrect editing of PA and PM values can cause out of tolerance measurements s A new RPM4 is delivered with PA and PM values set to zero and 1 for all Q RPTs This does not mean that the RPM4 has not been calibrated In the original factory calibration privileged factory coefficients are used for calibration with the user PA and PM set to zero and 1 5312 ASRECEIVED AND AS LEFT DATA Freguently calibration procedures reguire that as received and as left data be reported The necessary information to report as received and as left data on the calibration of RPM4 Q RPTs can be obtained in several ways When the RPM4 CalTool calibration assistance software is used as received data is displayed while running the calibration and is automatically recorded and reported if desired As left data is also calculated and presented At any time a reference pressures applied b associated Q RPT readings c PA PM and AutoZ offset values can be used to calculate as received and as left values For example backing out PA and PM on the as left data yields the Q RPT readings with PA 0 and PM 1 Then applyi
93. any Page 74 4 REMOTE OPERATION 4 3 1 CLASSIC PROGRAM MESSAGE FORMAT Each program message sent is also a query You can only send one program message to the RPM4 at time After sending any program message you must wait for the RPM4 to reply before sending another program message This reply will contain data or a numeric error message if the program message was invalid You must wait for this reply before issuing another program message to the RPM4 This insures that the RPM4 has completed the program message Most remote program messages will return a reply within 500 ms except PR PRR SR ATM RATE Up 2 seconds RPT ARANGE AUTOZERO RUN Up to 3 seconds The syntax and format used for each program message in the classic mode is listed next to the keyword Classic in each program message summary in Section 4 4 4 4 3 2 ENHANCED PROGRAM MESSAGE FORMAT The enhanced program message format uses the IEEE Std 488 2 format syntax and status reporting Errors are reported using the IEEE Std 488 2 status reporting model If an error is reported the error is put into an Error Queue and the ERR query program message can be used to get a text description of the most recent error If you are using the IEEE 488 port the service request line can be setup to be asserted if this occurs see Section 4 5 2 In the enhanced format there are two possible program message types for every pr
94. asured gauge pressure is calculated using to correct the value of Potiset c P jauge Pu T Pottset c In gauge measurement mode running AutoZ is initiated by the operator pressing AutoZ see Section 3 3 9 1 when the RPM4 is vented This assures regular updating of the value Of Pottset g Patmo APatm is continuously updated automatically s When gauge mode is first activated the value of Porse subtracted from the absolute pressure reading to achieve gauge pressure is standard atmosphere of 101 325 kPa This can cause a large zero error when gauge mode is activated if atmospheric pressure is significantly different from standard atmospheric pressure When gauge mode is activated always vent the RPM4 Q RPT and press AutoZ to run AutoZ and obtain an actual value of Pic AutoZ ON OFF The AutoZ function can be turned ON and OFF separately for gauge and absolute measurement modes Table 5 summarizes the effect of AutoZ ON and OFF Generally AutoZ should always be left ON Table 5 AutoZ ON and OFF MEASUREMENT AutoZ Pottset MODE STATUS APPLIED APPLIED RUNS When initiated Absolute Not Applicable Notavallable available Gauge by operator 2007 DH Instruments a Fluke Company Page 56 3 OPERATION Recommendations for the Use of the AutoZ Function The AutoZ function provides a powerful and easy to use tool for improving the stability over time of RPM4
95. ately 3 4 3 3 2 1 3 3 10 Cannot select absolute measurement mode Absolute measurement mode has been turned off in the calibration function Check that absolute is ON for the Q RPT 5 3 5 Display update rate of indicated pressure changes when changing pressure RPM4 automated read rate function is ON to automatically adjust read rate depending upon rate of change of pressure Operation is normal Turn automated read rate function OFF if desired 3 5 7 2 Display update of indicated pressure is too slow when pressure is changing guickly RPM4 automated read rate function is OFF Turn automated read rate function ON to automatically adjust read rate depending on pressure rate of change 3 5 7 2 Pressure is changing but display of pressure is NOT and the bottom right hand corner of the display is a numerical countdown followed by lt avg gt Average DISPLAY function is ON and pressure display is updating only with the average value at the end of each averaging cycle Go to a DISPLAY function other than average or press to get the instantaneous value Average DISPLAY 3 3 6 Pressure measurement seems erratic The RPM4 and or the connection to the test system and or the GPC1 pressure controller is contaminated with liguids Purge and clean affected systems Contact DHI Authorized Service Provider if RPM4 is contaminated internally 8 Table 23 Pressure indicated by RPM4 never be
96. ay UCOEFn Convert a pressure in Pascal to pressure in the current units UDU Read or set the user defined pressure unit ULn Read or set the upper limit for the current range UNITn Read or set the pressure unit of measure for the current range VER Read the RPM4 software version ZOFFSETn Read or set the AutoZero for the specified Q RPT ZOFFSET XX Read or set the AutoZ 2 for the specified Q RPT old command Page 77 2007 DH Instruments a Fluke Company RPM4 HPMS A70M A20M AF OPERATION AND MAINTENANCE MANUAL 4 4 2 ERROR MESSAGESS Table 15 Error s and descriptions REPLY DESCRIPTION ERR 0 OK ERR 2 Text argument is too long ERR 3 Arguments cannot be 0 ERR 4 External device not detected ERR 5 Not used ERR 6 Numeric argument missing or out of range ERR 7 Missing or improper command argument s ERR 8 External device time out error ERR 9 Unknown command ERR 10 Missing or invalid command suffix ERR 11 Command missing argument ERR 12 System overpressured or overpressure may result ERR 13 Text queue overflow ERR 14 User unit not defined ERR 17 Not used ERR 18 Command not yet available ERR 19 Not available with absolute units ERR 20 Not available with gauge device ERR 21 Not used ERR 22 Pressure is not stable ERR 23 Opti
97. be 5 away from the RPM4 rear panel adapter 3 until the tube tip is free from the adapter in the Lo Q RPT TEST port Remove the Hi Q RPT connection tube 9 Fully loosen the Hi Q RPT TEST connection on the RPMA rear panel 2 Use a 7 16 in wrench to loosen the swage nut 2 Do not remove the NPT thread adapter that is in the Q RPT TEST port Fully loosen the gland nut 7 connecting the Hi Q RPT connection tube 9 to the Lo Q RPT isolation valve side port 7 Fully loosen the gland nut 1 connecting the Hi Q RPT connection tube 9 to the HPMS rear panel TEST port adapter 1 Use a 5 8 in wrench Carefully pull the Hi Q RPT connection tube 9 out of the valve side port 7 Then gently pull the tube away from the RPM4 rear panel adapter 2 until the tube tip is free from the adapter Remove the four nuts and lock washers 8 that hold the RPM4 rack mount brackets 10 to the front of the HPMS bracket Use a 7 mm wrench Loosen but do remove the two nuts and lock washers 13 that hold the RPM4 rear support bracket 12 to the rear of the HPMS bracket Use a 7 mm wrench Remove the four screws and washers 11 that hold the RPM4 rear support bracket 13 to the RPM4 rack mount brackets 10 Use a 3 mm allen wrench Grasp the 4 and rack mount brackets 10 and move them away from the front of the HPMS bracket and studs 8 The rear support bracket 13 should move away freely because of the loos
98. ces to assist in the testing or calibration of analog gauges and other pressure sensitive devices The AutoTest function is intended to e AutoRange the RPM4 see Section 3 3 4 to the range of the DUT being tested with settings appropriate for the tolerance of the DUT e Step the operator through a planned sequence of test pressure increments if desired e Alert the operator to possible out of tolerance conditions at each test point e Log test data in RPM4 that can be viewed following the test There are two types of AutoTest Quick AutoTest and File AutoTest e Quick AutoTest The DUT and test parameters are entered on the fly during the initialization of the test then the test is executed if desired In Quick AutoTest tests the test points are defined in 96 of test FS pressure e File AutoTest The DUT and test parameters are stored in a file see Section 3 4 5 2 and retrieved when a DUT is to be tested In File AutoTests test points are defined individually AutoTest operation is oriented towards running tests in which the pressure is set to the DUT cardinal point indication and then the actual reference pressure present is read from the RPMA AutoTest Settings and Calculations The data required to initialize an AutoTest is either entered on the fly Quick AutoTest or retrieved from a file File AutoTest The data items required are e Pressure measurement mode gauge or absolute e Pressure unit of measure e DUT fu
99. ch the Q RPT is zeroed by AutoZ Pressure adder used to offset a Q RPT or barometer to calibrate it Pressure multiplier used to adjust span of a Q RPT or barometer to calibrate it Operating mode of RPM4s with two Q RPTs in which both Q RPTs are used to measure together in parallel and the indicated pressure is the average of their readings This creates a pseudo Q RPT designated HL Parallel Measurement Mode The maximum pressure limit of a Q RPT If the pressure measured by the Q RPT exceeds Pmax an overpressure condition occurs Pressure controller calibrator manufactured by DHI RPM4 can be used as an external reference device fora PPC3 PPC3 automates RPM4 pressure control The transducer used by RPM4 for low uncertainty pressure measurement May be designated as Hi Lo or HL depending on its position and role in t he RPM4 Quartz Reference Q RPTs are designated by a leading A G or BG absolute gauge or bi directional Pressure Transducer gauge followed by three numbers and a letter indicating the maximum range of the Q RPT in kPa nnnk or MPa nnnM A DISPLAY function in which the rate of change of pressure in pressure unit second is displayed Front panel LED indication of when the pressure measured by RPM4 s active Q RPT is Ready Not Ready stable within the stability limit Leading character of the second line when the inactive Q RPT is displayed on the second line in Q RPT DISPLAY mode RPT2x Parallel measuremen
100. comes stable These is a leak in the pressure system to which RPM4 is connected Find and correct leak Consider using RPM4 leak check function 3 3 5 The pressure applied to the RPM4 has recently been changed and the pressure is still stabilizing The time it takes for pressure to stabilize after making a pressure change increases with the size of the pressure change and size of the test volume Up to five minutes or more can be required for pressure to stabilize within 0 001 of the measured pressure The RPM4 display resolution is higher than is necessary and you are observing normal evolution of the pressure Note if viewed with enough resolution pressure is NEVER perfectly stable Use the resolution setting function AutoRange or AutoTest to reduce resolution to a level that is appropriate for the test being run or the uncertainty of the device being calibrated 3 4 2 3 3 4 3 3 10 Disagreement between two Q RPTs in system appears excessive Difference is actually within tolerance and acceptable disagreement Compare differences observed to tolerances on Q RPT measurements 1 2 2 1 Apparent inaccurate pressure control measure and little or no response from Q RPT 2007 DH Instruments a Fluke Company Reference transducer destroyed by overpressure Page 130 Contact DHI Authorized Service Provider 8 Table 23 SYMPTOM Apparent inaccurate pressure measurement PROBABLE C
101. correction is currently active see Section 3 3 7 the head correction is momentarily disabled while running AutoZ to avoid zeroing out the head value The value of P offset is always displayed and entered in Pascal Run AutoZ by Entry s Before running AutoZ in absolute mode use lt SETUP gt lt 2res gt to set the resolution of the active range to 0 001 or O OOO1 FS AutoZ by entry allows the value of Pstao see Section 3 5 1 O PRINCIPLE to be entered manually from the RPM4 front panel This provides a simple way of AutoZeroing relative to an independent reference device such as a house barometer that does not interfaced directly with RPM4 To run AutoZ by entry press AutoZ lt gt The display is 1 2 1 Real time pressure reading without head correction pressure unit of measure and measurement mode of the active Q RPT 14 03 psi a Hi 2 Active Q RPT position designator Pstd 0 0 00 3 Entry field for the value of Pstao in the current pressure unit of measure 3 Enter the value of the AutoZ reference Ps in the same unit of measure as the top line display and press ENT RPM4 logs the reading and calculates a new AutoZ offset value The next display is Press ENT to activate the new value of Old P 0 Pa Parse ESC to start over with entry of a new AutoZ reference Pesta value New 2745 The value of Posse is always in Pascal The value
102. ction 5 3 7 If the calibration was performed in gauge mode turn absolute mode OFF so it won t be used after the calibration Calculate as left data for the calibration if desired following as left reading non corrected reading new PM new PA Perform additional verification pressure runs as desired Page 113 2007 DH Instruments a Fluke Company RPM4 HPMS A70M A20M AF OPERATION AND MAINTENANCE MANUAL 5 4 REPAIR 5 4 1 REMOVING RPM FROM HPMS s The RPM4 HPMS is an integrated assembly The RPM4 should not be removed from the HPMS unless it is necessary for RPM4 and or HPMS repairs The RPM4 should be calibrated in the HPMS mounting system as the RPM4 orientation may affect its calibration To remove the RPM4 A20M A70M AF from the HPMS High Pressure Mounting System proceed as follows numerical references refer to Figure 12 Turn the HPMS upside down Set it on its top on a flat surface Disconnect the J1 ACC circular connector from rear panel and remove the RPM4 power cable Remove the Lo Q RPT connection tube 5 Fully loosen the Lo Q RPT TEST connection on RPMA rear panel 3 Use a 7 16 in wrench to loosen the swage nut 3 Do not remove the NPT thread adapter that is in the Q RPT TEST port Fully loosen the gland nut 6 connecting the Lo Q RPT connection tube 5 to the Lo Q RPT isolation valve rear port 6 Use a 1 2 in wrench Gently pull the Lo Q RPT connection tu
103. ction 3 4 The SPECIAL menu is for functions that are not generally used as values when editing a part of day to day operation see Section 2 The Editing and Execution keys are for 3 5 These keys enter numerical values starting and suspending command when editing execution cursor control in menus and editing entries Figure 8 Keypad layout Pressing the ENT key generally causes execution or forward movement in the menu tree Pressing the ESC key moves back in the menu tree and or causes execution to cease or suspend Pressing ESC repeatedly eventually returns to the MAIN RUN screen and from there allows momentary viewing of the RPM4 introduction screen Pressing the key changes a numerical sign when editing It also toggles through multiple screens when available and from some run screens is a shortcut to a momentary display of active RANGE Pressing the IV lt gt keys allows up down reverse and forward cursor movement when editing data entry or moving in menus s Some screens go beyond the two lines provided by the display This is indicated by a flashing arrow in the second line of the display Press the cursor control keys to move the cursor to access the lines that are not visible or directly enter the number of the hidden menu choice if you know it Page 17 2007 DH Instruments a Fluke Company RPM4 HPMS A70M A20M AF OPERATION AND MAINTENANCE MANUAL 3 L3 REMOTE ENT ENT
104. d the user level cannot be changed without reentering the password Passwords can be to six numbers in length and cannot start with a zero If lt 0 gt is entered the password is made inactive and the user will not be required to enter a password to access the user level menu This condition with a security level of lt 2low gt is the factory default If there is an active password the RPM4 password entry screen appears RPM4 SNnnnn xx The user must enter the user defined ds password or the factory secondary Password password to proceed further The first field lt nnnn gt is the serial number of the RPM4 followed by a second field XX that represents the number of times that a secondary password has been used The second field xx increments each time a secondary password is used The third field lt gt is for user entry of the normal password s The factory secondary password is available in case the users password has been misplaced or forgotten It can be obtained by contacting a DHI Authorized Service Center see Table 25 The factory secondary password is different for all RPM4 s and changes each time it is used lt 6PUNIT gt PURPOSE To customize the selection of pressure units of measure that are available in the UNIT key menu O PRINCIPLE The UNIT function key makes available a choice of four default pressure units psi MPa kPa bar see Section 3 3 2 RPM4
105. d an identifying header are stored in a data file The data file can be viewed immediately following the last point of the sequence by selecting lt 1data gt In addition the last ten data files recorded can be viewed anytime by selecting SETUP lt 5ATest gt lt 1data gt Data File Protocol Up to ten data files are buffered ten at a time in RPM4 memory When a new AutoTest run is completed its data file goes to the back of the queue and the oldest data file is deleted Data files are identified by a header whose first line is the full scale of the DUT and the number of test points in the AutoTest The second line is the date YYYYMMDD and time HH MM SS at which the last point of the sequence was accepted Following the data file header each test point is recorded including the pressure reading of the RPM4 with head AutoZ and range status as well as an indication of whether the reading was out of tolerance and the test point number over the total number of test points in the Sequence Q OPERATION To access the AutoTest results data file viewing function press SETUP lt 5ATest gt lt 1data gt The first display is the data file header which can be used to toggle through data files Page 51 2007 DH Instruments a Fluke Company RPM4 HPMS A70M A20M AF OPERATION AND MAINTENANCE MANUAL 1 2 1 Full scale of the AutoTest with pressure unit of measure and measurement mode 2 Number of test points executed tota
106. e argument can be used to specify which Q RPT you wish to use for the AutoRange range instead of allowing the RPM4 to pick the best Q RPT By using this option you can override the internal logic that picks the most suitable Q Q RPT This Q RPT specified must be valid for the maximum pressure and measurement mode specified The reply indicates the current range data including the Q RPT Label used for the range If inWa is specified for the unit the temperature reference can be given after the unit text inWa4 inWa20 or inWa60 corresponding to inWa at 4 C 20 or 60 F If no number is given a default of 20 C is assumed There is no indication of the temperature reference in the reply If you just specify the Q RPTLabel without any other arguments the Q RPT specified will become active in it s last range and settings The previously set unit and measurement mode for the Q RPT specified will become active Example Cmd sent ARANGE read the current range in the current units enhanced Query reply 100 00 psi A IH Example Cmd sent ARANGE read the current range in the current units classic Query reply 100 00 psi A IH Example Cmd sent ARANGE 250 inWa4 G range of 250 inWa 4 C in gauge mode enhanced Query reply 250 00 inWa G IH Lo Q RPT is used Example Cmd sent ARANGE 500 kPa range of 500 kPa in gauge mode classic Query reply 500 00 kPa G
107. e Company RPM4 HPMS A70M A20M AF OPERATION AND MAINTENANCE MANUAL 5447 COOLING FAN The cooling fan is mounted on the RPM4 rear panel and connected to the main board Itis a 12V brushless DC fan 5 4 5 MODULE PNEUMATIC SCHEMATIC BAROMETER TEST Figure 14 Pneumatic schematic of RPM4 Q RPT Module 5 5 RPMA ILLUSTRATED PARTS BREAKDOWN Table 21 RPM4 Front Panel Illustrated Parts Breakdown see Figure 15 103041 Reterence Pressure Monitor _ 14 7757 ABBE mm mm mm Y 103042 E sd 123560 103295 Z Figure 15 RPM4 Illustrated Parts Breakdown of Front Panel 2007 DH Instruments a Fluke Company Page 118 5 MAINTENANCE ADJUSTMENTS AND CALIBRATIONS Table 22 RPM4 Rear Panel Illustrated Parts Breakdown see Figure 16 Ce few 103285 402195 401420 102073 HIGH RPT 2 J1 ALC IEKE 488 1 LOW RPT 6 MPa 10000 psi D2510M12B 06AK2D JGW25 218001 25C160MXPS 2CM2 316 30C100MXFS 124154 Figure 16 RPM4 Illustrated Parts Breakdown of Rear Panel Page 119 2007 DH Instruments a Fluke Company RPM4 HPMS A70M A20M AF OPERATION AND MAINTENANCE MANUAL Table 23 RPMA Illustrated Parts Breakdown of Display Assembly see Figure 17 30C60KCSS SONLOCS S0NWSFS 401963 30CNFHS SS 5172 14 0 00 30NLOCS 123568 123566 103122 30C60KCSS
108. e between opportunities to run AutoZ and update the value of Pottset a for example when running an extended test without venting RPM4 uses dynamic compensation for atmospheric pressure to correct for changes in atmospheric pressure between opportunities to run AutoZ and update When Autoz runs and Pottset a is determined the reading of RPM4 s on board barometer Patmo is also recorded Later when no longer vented the change in atmospheric pressure APatm since Was updated is the difference between the current barometer reading Patm and the barometer reading at the time of AutoZ execution APatm Pam Patm o Dynamic compensation for atmospheric pressure uses to correct the value of Pottset a thus always compensating real time for changes in atmospheric pressure P gauge Pu APatm The additional uncertainty in gauge pressure mode due to the dynamic compensation for atmospheric pressure technigue is a function of the resolution and short term stability of the on board barometer not its absolute measurement uncertainty This additional uncertainty is completely insignificant in the range of pressure covered by the RPM4 A70M A20M AF 3 2 3 MULTIPE RANGES Q RPTS AUTORANGE AND INFINITE RANGING RPM4 A70M A20M AF has two Quartz Reference Pressure Transducers Q RPTs The A70M 10 000 psi Q RPT is designated the Hi Q RTP The A20M 3 000 psi Q RPT is designated the Lo Q
109. e indication of when a stable pressure has been achieved Heady is indicated when the current stability rate of change of pressure is less than the stability limit The user can set the stability limit see Section 3 4 3 and the stability limit can be set automatically by a AutoRange or AutoTest see Section 3 3 4 3 3 10 The Ready indication is often used when comparing the RPM4 and a test device to indicate when a valid reading can be made The Heady Not Heady LED indications are Green Pressure Ready The pressure stability is within the stability limit Red Pressure Not Ready pressure stability is NOT within the stability limit 2007 DH Instruments a Fluke Company Page 18 3 OPERATION 3 2 2 GAUGE MODE DYNAMIC COMPENSATION FOR ATMOSPHERIC PRESSURE The RPM4 A70M A20M AF Q RPTs are intrinsically absolute but they are also used for gauge measurement mode see Section 3 3 3 O PRINCIPLE Gauge measurement mode is achieved by subtracting the value of atmospheric pressure from the Q RPT s absolute reading using AutoZ see Section 3 2 2 The AutoZ routine that measures Pose is run by pressing AutoZ whenever RPM4 is in the vented condition This assures the continuous updating of the Value corresponding to atmospheric pressure Gauge pressure is the measured absolute pressure Pu minus the atmospheric offset Poser P gauge Pu S However atmospheric pressure chang
110. ects to BOTH of the RPM4 A70M A20M AF quartz reference pressure transducers see Section 3 2 5 A Take care to avoid overpressure of the Lo Q RPT AZOM with maximum pressure of 3 OOO psi The HPMS rear TEST port connects to both the 2 3000 psi and the A7OM 10 OOO psi Q RPTs Use the Lo RPT Isolation Valve on the HPMS front panel to isolate the Lo RPT when applying pressure to the Hi RPT see Section 3 2 5 If RPM4 is removed from the HPMS note that the RPM4 has separate Lo and Hi TEST ports one for each Q RPT Exposing the Lo RPT to pressure greater than 3 GOO psi 24 MPa may damage it beyond repair The product warranty does not cover Q RPT damage due to overpressure Page 109 2007 DH Instruments a Fluke Company RPM4 HPMS A70M A20M AF OPERATION AND MAINTENANCE MANUAL 5 3 4 RECOMMENDED CALIBRATION POINT SEQUENCE Calibration adjustments to RPM4 Q RPTs are made by altering calibration coefficients PA and PM see Section 5 3 1 1 To adjust these coefficients to optimum values giving the best results over the Q RPTs complete operating range the specific calibration point sequence defined in Table 20 is recommended Prior to running the calibration point sequence the Q RPT should be exercised a Set full scale pressure b Dwell at full scale pressure for 5 minutes 9 Return to atmospheric pressure vented Dwell for ten 10 minutes A dwell time of 60 seconds is recommended before taking data a
111. ed directly from the keypad In addition the cursor control keys can be used to toggle through a list of available alphanumeric characters Holding the key slews through the characters Character order going up is blank space symbols lower case letters upper case letters numbers After selecting a character press ENT to activate it and move to the next character field When a character is selected the cursor moves to the next character To leave a blank character press ENT with the field for that character blank Use this for the trailing characters if the ID being entered is less than twelve characters After the last of the twelve characters has been entered the lt Save ID gt option is offered Select lt 1no gt to return to the ID edit screen Select lt 2yes gt to save the edited ID s The ID can be set remotely from a computer which is guite a bit more convenient than entering characters from the keyboard see Section 4 4 4 ID commana The ID is not cleared or reset by any RESET function see Section 3 5 9 2007 DH Instruments a Fluke Company Page 62 3 OPERATION 3555 lt SLEVEL gt SECURITY Q PURPOSE To set user protection levels to restrict access to certain functions and to edit the password required for changing user levels Q PRINCIPLE RPM4 s front panel user interface provides the means to access all RPM4 user defined data settings and functions including calibration data Inadvertent u
112. ed out while in remote The ESC key returns the RPM4 to local operation unless the lt REMOTE gt program message which locks out all keypad operation was sent to the unit 42 1 RS232 INTERFACE 4211 COMI The RPM4 COM1 RS232 interface is located on the back of the unit It is a 9 pin male DB 9F connector configured as a DCE device Data is transmitted out of the unit using pin 2 and is received on pin 3 This allows a normal pin to pin DB 9M to DB 9F RS232 cable to be used to connect to a DTE host Handshaking is not required or supported The COM receive buffer is 80 bytes deep If you overflow the buffer by sending too much data the data will be lost Because of this you must send a single program message at a time and you must wait for the RPM4 to reply from the previous command before issuing another command Table 12 COM pin designations and connections RPM4 COM1 DB 9F PIN DESIGNATIONS Ns FUNCTION IBM PC XT DB 9F PC XT DB 9M TO RPM4 DB9F CONNECTIONS CONNECTION Page 73 2007 DH Instruments a Fluke Company RPM4 HPMS A70M A20M AF OPERATION AND MAINTENANCE MANUAL 42 12 IEEE 498 The RPM4 IEEE 488 interface is located on the back of the unit The physical and electrical interface conforms to IEEE Std 488 1 1987 Subset E2 and IEEE Std 488 2 1992 You should not attempt to communicate with the IEEE 488 interface while using the COMI interface The IEEE 488 receive buffer is 250 bytes deep I
113. ee D kk ea 126 RPMA HPMS AF Assembly d ecce rc et ec tp e ai 127 nstruments a Fluke Company Page VI ABOUT THIS MANUAL DHI DH Instruments ABOUT THIS MANUAL H onran This manual is intended to provide the user with the basic information necessary to operate an RPM4 HPMS A70M A20M reference pressure monitor with high pressure mounting system It also includes a great deal of additional information provided to allow you to optimize the use of the instrument and take full advantage of its many features and functions Before using the manual take a moment to familiarize yourself with the Table of Contents structure Sections 1 2 and 3 should be read by all first time RPM4 users Section 3 is most important for those using the local front panel interface but should be read over by all users to familiarize themselves with general RPM4 operating principles Section 4 is for remote operation from an external computer Section 5 provides maintenance and calibration information Section 6 is a quick troubleshooting guide Use it to troubleshoot unexpected RPM4 behavior based on the symptom of that behavior Certain words and expressions have specific meaning as they pertain to RPM4 The Glossary Section 9 is useful as a quick reference for exact definition of specific words and expressions as they are used in the manual s For those of you who don t read manuals go direc
114. eference pressure transducer see Section 3 2 2 The temperature sensor is used for temperature compensation of the barometric sensor 5445 QRPT MODULE The Q RPT module is an integrated Quartz Reference Pressure Transducer Q RPT assembly The module includes a Q RPT brackets to hold the transducer interconnecting tubing and a manifold with TEST and ATM ports A Q RPT provides very high precision low uncertainty pressure measurement The basic sensing principle is the measurement of the change in the natural oscillating frequency of a quartz tuning fork in response to changes in temperature and mechanical stress resulting from the change in pressure applied to a connecting bellows or bourdon tube Two independent quartz elements are used One quartz element is subjected to pressure related stress The other quartz element is used only to monitor temperature See Section 1 2 2 1 for Q RPT specifications See Section 5 4 5 Figure 14 for a pneumatic schematic of the Q RPT module configuration HI Q RPT MODULE The RPM4 A70M A20M AF Hi Q RPT is A70M A70M has a pressure range of atmosphere to 10 000 psi 70 MPa absolute 0 to 10 000 psi 70 MPa gauge LO Q RPT MODULE The RPM4 A70M A20M AF Lo Q RPT is an A20M The A20M has a pressure range of atmosphere to 3 000 psi 20 MPa absolute O to 3 000 psi 20 MPa gauge 5446 DISPLAY 2 x 20 character vacuum fluorescent display Page 117 2007 DH Instruments a Fluk
115. efore making changes to settings that are dependent on the range Q RPTs selected with this command are used with their full default pressure range The reply indicates the active range in psi if the is a US version or in kPa if the is an SI version Used as a simple query the active range is returned which can be an AutoRanged range or a default range see ARANGE Example Cmd sent RANGE IL select internal Lo Q RPT in it s full default range enhanced Query reply 2 2 psi g IL Example Sent RANGES select internal Hi Q RPT in it s full default range classic Reply 1000 psi a IH Example Sent RANGE request current range classic Reply 220 psi a IL Errors ERR 6 Invalid Rng argument ERR 29 The selected Q RPT is not available See Also ARANGE RPT 3 2 3 3 3 1 3 3 4 RATEn Purpose Read the next available pressure rate of change Query RATEn Classic RATEm Optional Suffix n The active Q RPT is assumed if no suffix is given 47 Specify the Hi Q RPT 2 Specify the Lo Q RPT Remarks The next available pressure rate of change in the current pressure unit per second is returned After receiving this program message the RPM4 replies back with the data once a new pressure measurement cycle is complete This can take up to the current read rate period 1 2 seconds by default Example Query sent RATE enh
116. eight Dimensions Communication Ports Fuses Pressure Range Operating Medium Pressure Connections Pressure Limits PGC 10000 AF SYSTEM Temperature Relative Humidity 2007 DH Instruments a Fluke Company SPECIFICATIONS GENERAL SPECIFICATIONS 85 to 264 VAC 50 60 Hz 25 VA max consumption and 12VDC 1 2 A 18 to 28 C 20 to 70 11 kg 22 Ib approx 23 5 cm H x 29 4 cm W x 37 5 cm D 9 3 in x 11 6 in x 14 8 in RS232 COM1 COM2 IEEE 488 2 1 A 250 VAC fuse 5 x 20 mm time lag type fuse Internal power supply fuse not replaceable by operator 2 5A 250 VAC 0 to 10 000 psi 70 MPa in gauge mode Atmosphere to 10 000 psi 70 MPa in absolute mode Any clean dry non corrosive gas DH500 female DH5OO is gland and collar type fitting for 6mm 1 4 in coned and left hand threaded tubes equivalent to AE F25OC HIP HF4 etc Maximum Working Pressure 10 000 psi 70 MPa Maximum Pressure Without Damage 12 000 psi 83 MPa When low Q RPT is connected to pressure Maximum Working Pressure 3 000 psi 20 MPa Maximum Pressure Without Damage 3 600 psi 24 MPa Operating 18 to 28 C Storage 20 to 70 C Operating 15 to 70 RH non condensing Storage 10 to 90 RH non condensing Page 2 1 2 2 1 INTRODUCTION PRESSURE MEASUREMENT SPECIFICATIONS 1221 QUARTZ REFERENCE PRESSURE TRANSDUCERS RPM4 A70M A20M is configured with two quartz reference pressure tr
117. ement mode setting and set to absolute if absolute pressure measurements are desired 3 3 3 Is NOT reading pressure applied to the Lo Q RPT HPMS Lo Q RPT Shut Off Valve is closed shutting off the Lo Q RPT from the HPMS TEST port Familiarize yourself with the HPMS configuration and operation Open the Lo Q RPT Shut Off Valve 3 2 5 Is NOT reading pressure applied to RPM4 TEST port RPM4 has two TEST ports and pressure to be measured is connected to correct port but active Q RPT is NOT the Q RPT on that TEST port Familiarize yourself with your RPM4 configuration Set active Q RPT and range to read on desired test port 2 4 3 2 3 2 3 3 3 1 ENT is not AutoTest function accessing the You are in a Display mode other than Rate that uses the ENT key Page 131 Press DISPLAY and set the Display mode to Rate 3 3 6 2 2007 DH Instruments a Fluke Company RPM4 HPMS A70M A20M AF OPERATION AND MAINTENANCE MANUAL NOTES 2007 DH Instruments a Fluke Company Page 132 7 APPENDIX DH Instruments A Fluke Company APPENDIX UNIT CONVERSION 7 11 PRESSURE RPM4 performs all internal calculations in SI units Numerical values input or output in other units are converted to SI immediately after entry and back to other units just before output as needed Table 28 provides the conversion coefficients used by RPM4 to convert numerical values expressed in SI units to correspondi
118. ened nuts 13 holding it onto the HPMS brackets Once the rack mount brackets 10 clear the studs 8 the brackets can be removed from the RPM4 and the RPM4 can move to the side out of the HPMS Take care not to drop the RPM4 when removing the rack mount brackets O To reassemble reverse the procedure When reassembling the high pressure gland and collar fittings protect the conical tip from damage and be sure that the collar is fully threaded on the nipple left hand thread before tightening the gland nut Leak check all connections after reassembly 2007 DH Instruments a Fluke Company Page 114 5 MAINTENANCE ADJUSTMENTS AND CALIBRATIONS 1 HPMS TEST port connection 8 rack mount HPMS connection 2 Hi Q RPT connection 9 TEST port DH500 F 3 RPM4 Lo Q RPT connection 10 Hi Q RPT connection tube 4 RPM4 A70M A20M AF 11 Rack mount bracket rear support 5 Lo Q RPT connection tube bracket connection 6 Lo RPT shutoff valve rear connection 12 Rear support bracket 7 Lo RPT shutoff valve side connection 13 Rear support bracket HPMS connection Figure 12 RPM4 HPMS disassembly view 5 4 2 OPENING AND CLOSING THE ENCLOSURE To open the RPM4 case first remove the RPM4 from the HPMS see Section 5 4 1 Once the RPM4 is removed from the HPMS proceed as follows Place the RPM4 bottom side up on a stable flat surface Remove the four 4 Phillips head screws at the four corners of the R
119. enhanced program message format LOCAL Return control to the RPM4 front panel MEM Read the power up memory test status MMODEn Read or change the active measurement mode MSGFMT Read or set the type of program message format to use PCALn Read or set the user Lo Q RPT calibration information PCAL XX Read or set the user Lo Q RPT calibration information old command PRn Read the next RPM4 pressure PRRn Read the next RPM4 pressure rate and ATM QPRRn Read the last RPM4 pressure rate and ATM RANGE Select a Q RPT to be active in it s default full scale range RATEn Read the next available rate of change of pressure READRATEn Read or set the Q RPT measurement read rate and mode READYCKn Read or set a flag that is cleared by a Not Ready condition REMOTE Enable remote local lockout operation RESn Read or set the pressure display resolution for the current transducer and range RESET Reset the RPM4 to default user parameters RPTn Read the available Q RPT data Read or set the front panel screen saver period Read the serial number of the RPM4 Read the next available pressure status Ready Not Ready Read or set the stability required for a Ready condition SS n Read or set the stability required for a Ready condition span s TIME Read or set the current time of d
120. er to the SR command pressure The measured pressure for the selected Q RPT in the current pressure unit This is followed by the current pressure unit and measurement mode rate The measured rate of pressure change for the active Q RPT in the current unit of pressure per second This is followed by the current pressure unit atm The pressure measured by the RPM4 on board barometer in the current pressure unit but always absolute This is followed by the current pressure unit Not all RPM4s are equipped with an on board barometer This field is missing if the RPM is not equipped with a barometer Example Query sent enhanced Query reply R 2306 265 kPa a 0 011 kPa s 97 000 kPa a R 2306 265 kPa a 0 011 kPa s no barometer Example Query sent classic Reply R 2306 265 kPa a 0 011 kPa s 97 000 kPa a See Also PR PRR SR 3 1 1 3 2 1 3 5 7 1 Page 89 2007 DH Instruments a Fluke Company RPM4 HPMS A70M A20M AF OPERATION AND MAINTENANCE MANUAL RANGE Purpose Change the active range to the default range of the Hi or Lo Replies the active range full scale pressure unit and measurement mode Command RANGE Ang Query RANGE Classic RANGE Rng RANGE Default RANGE Rng IH for the Hi IL for the Lo Q RPT Remarks The active Q RPT must be selected b
121. erence Pressure Monitor eta 4 LO Q RPT LO Q RPT y SHUT OFF RPMH HPMS 3 1 RPM4 A70M A20M AF Reference Pressure Monitor 4 Lo Q RPT active valve position LED 2 Lo Q RPT shut off valve position LED 5 Lo Q RPT active caution LED 3 Lo Q RPT shut off valve Figure 9 RPM4 HPMS front view 2007 DH Instruments a Fluke Company Page 22 3 OPERATION 5 4 1 HPMS TEST port DH500 F 5 RPM4 A70M A20M AF 2 Connection to RPM4 Lo Q RPT A20M Reference Pressure Monitor 3 000 psi 6 Connection to RPM4 Hi Q RPT 3 Lo Q RPT pressure relief valve 3 300 psi A70M 10 000 psi 4 Lo Q RPT shut off valve Figure 10 HPMS pneumatic schematic Page 23 2007 DH Instruments a Fluke Company RPM4 HPMS A70M A20M AF OPERATION AND MAINTENANCE MANUAL 3 2 6 DIRECT FUNCTION KEYS SUMMARY s Table 3 provides a brief summary of RPM4 direct function key operation It may be useful to keep a copy of this summary near the RPM4 HPMS especially when first becoming acquainted with its operation Local operation of RPM4 is through the front panel keypad To minimize multi layered menu structures the keypad numerical keys also provide direct access to the most commonly used functions The function accessed is labeled on the bottom half of the key Direct function keys are active whenever RPM4 is in its MAIN RUN screen Table 3 summarizes the operation of
122. es access restriction to internal calibration coefficients and there is no password required to change the security level See Section 3 5 5 5 for information on the security level system As part of the RPMA startup determine the security level that is appropriate for the RPM4 and set a password if desired RPM4 is delivered with the security level set to low to avoid inadvertent altering of critical internal settings but with access to changing security levele unrestricted It ie recommended that the low security level be maintained at all times and password protection be implemented if control over setting of security levele is desired 248 SETTING UP AUTOTEST FILES RPM4 supports automated test calibration sequences AutoTest sequence parameters for testing specific DUTs can be stored in File AutoTest files and recalled to run a test Consider setting up File AutoTest files for frequently tested DUTs as part of the RPM4 set up process see Section 3 3 10 3 4 5 2 2007 DH Instruments a Fluke Company Page 12 2 5 2 INSTALLATION POWER UP AND VERIFICATION 25 1 SWITCH POWER ON Actuate the power switch on the RPM4 rear panel Observe the front panel display as RPM4 initializes error checks and goes to the MAIN RUN screen see Section 3 1 1 If the RPM4 fails to reach the main run screen service is required Record the sequence of operations and displays observed and contact a DHI Authorized Service Provider see Section 8 Tab
123. eter is not a source of traceable pressure values it does not have to be formally calibrated It should be offset to agree with a reference barometer To offset the barometer change the barometer pressure adder PA s The on board barometer is used only for measuring changes in atmospheric pressure over short periods of time see Section 5 2 5 RPM4 measurement accuracy does NOT depend on the absolute accuracy of the on board barometer O OPERATION To view or edit the values of PA and PM for RPM4 s on board barometer press SPECIAL lt 8cal gt lt 3barometer gt Pressing ENT steps through displays of the calibration date YYYYMMDD and PA and PM ln edit mode the values can be edited Pressing ENT after the last screen activates the edited values s To view the current output of the on board barometer press SPECIAL 7Internal lt gt from the main run screen s A pressure standard may be connected to the on board barometer by connecting to one of the ATM ports on the RPM4 rear panel Q RPT modules 10 32 UNF The operating span of the barometer is 10 psi 70 kPa to 16 psi 110 kPa 2007 DH Instruments a Fluke Company Page 106 5 3 5 MAINTENANCE ADJUSTMENTS AND CALIBRATIONS Never apply a pressure greater than 16 psi 110 kPa to the barometer port Overpressure and possible damage may result Q RPT CALIBRATION 5 3 1 PRINCIPLE RPM4 A70M A20M AF has two quartz reference pressure
124. eter to gauge pressure defined by the piston gauge If after calibration the RPM4 will not be used in absolute measurement mode as is often the case for higher pressure Q RPTs it may be calibrated in gauge mode using a gauge pressure standard Q RPTs calibrated in gauge measurement mode by applying gauge reference pressure values should be used in gauge mode only see Sections 3 3 3 O PRINCIPLE 5 3 5 e Able to supply the recommended sequence of pressure points in the range to be calibrated See Section 5 3 4 for information on the recommended calibration point sequence 5 3 3 SET UP AND PREPARATION To set up and prepare the RPMA for calibration of its Q RPTs s THE RPM4 SHOULD NOT BE REMOVED FROM THE HPMS BRACKET FOR CALIBRATION THE RPM4 HPMS SHOULD ALWAYS BE KEPT TOGETHER AS AN INTEGRATED UNIT UNLESS DISASSEMBLY IS REQUIRED FOR MAINTENANCE OR REPAIR Set the RPM4 HPMS on a stable surface near the calibration standard at a height as close as possible to the calibration standard s reference height Consider the high pressure gas connection that needs to be made to the TEST port on the rear of the HPMS and access to the front panel display keypad and Lo G RPT isolation valve Connect the calibration standard output to the HPMS rear TEST port The TEST port connection is DH500 F DH500 F gland and collar type fitting for coned and left hand threaded 1 4 in OD tube equivalent to AE F250C HIP HF4 etc The HPMS TEST port conn
125. ettings see Section 3 2 3 An RPM4 may have multiple ranges Each Q RPT in the RPM4 system has a default range which is its maximum span The default ranges of the RPM4 70 20 are 10 000 psi A70M and 3 000 psi A20M Additional ranges lower than the Q RPT s maximum span may also be created using AutoRange see Section 3 3 4 or AutoTest See Section 3 3 10 2007 DH Instruments a Fluke Company Page 24 3 OPERATION Ranges created using AutoRange or AutoTest may be saved with their settings for reactivation see Section 3 4 1 The RANGE function key allows the available RPM4 pressure ranges to be viewed and selected OPERATION Pressing the RANGE function key activates the range viewing and selecting function When the RANGE function key is first pressed the active range is displayed For example 1 G RPT designator 1 2 2 Type of range DF for the Q RPT s default range AR for a range created by AutoRange 3 Q RPT position designator Active A20M DF Lo 4 Current pressure unit of measure psi 3000g 3000a 5 Ranges full scale pressure in current unit of measure in gauge and or absolute measurement mode depending on type of G RPT and range 5 Pressing the key or the RANGE key again while in the RANGE functions toggles through displays of the other available ranges from lowest range to highest range To select a range to become the active range press ENT while the range is di
126. ey restores full power to the display The screen saver time can be changed or screen saving can be completely suppressed see Section 3 5 5 1 Page 15 2007 DH Instruments a Fluke Company RPM4 HPMS A70M A20M AF OPERATION AND MAINTENANCE MANUAL 2 3 45 6 t PRESSUREIUNITM hzRR DDISPLAYFUCNIONnn nn DISPLAY FIELD NAME PURPOSE contens secmo PRESSURE1 Measured Displays pressure Numerical pressure value and pressure measured by the sign active Q RPT UNIT Unit of Identifies unit of Pressure unit symbol measure measure in which pressure values are displayed 1 2 3 Measurement Identifies lt a gt absolute mode measurement mode lt g gt gauge of displayed pressure 4 5 Head Indicates whether a lt h gt the fluid head is not pressure fluid head correction zero indicator is applied to lt blank gt fluid head is zero PRESSURE1 AutoZero Indicates whether lt Z gt AutoZ is ON indicator the AutoZero function lt blank gt AutoZ is OFF is ON or OFF for the M amp d 2 active Q RPT and measurement mode Active Indicates the position lt Hi gt Internal Hi Q RPT of the active Q RPT in lt Lo gt Internal Lo position the RPM4 indicator 7 nn nn Seguence Indicates progress of lt nn nn gt Number of this point progress an ATest seguence over total number of points indicator during test execution in the seguence 8 DISPLAY Information Pressure indication Numerical pressu
127. f you attempt to overflow the buffer the RPM4 will hold off release of the NRFD handshake line until it can service and empty the receive buffer This keeps the buffer from overflowing It is recommended that you check for errors using the ERR query after sending a group of non query program messages When using queries ensure that you wait for a reply to each query to ensue proper operation and order of command execution Replies to queries remain in the reply queue until the host gets them so they can stack up causing replies to appear out of sequence 4213 COM The RPM4 2 RS232 interface is located on the back of the unit It can be used to allow the host computer to communicate with another device through the RPM4 This allows the user to use one host COM port to communicate with the RPM4 and an additional RS232 device Refer to the remote program command for details is a 9 female DB 9F connector configured as a DTE device Data is transmitted out of the RPM4 using pin 3 and is received on pin 2 This allows a normal pin to pin DB 9M to DB 9F RS232 cable to be used to connect to a DCE device Handshaking is not required or supported Table 13 COM2 DB 9F pin designations PiN FUNCTION DESCRIPTION gt RD This pin transmits serial data from RPM4 to a device DD This pin accepts serial data from the external device 4 This pin is Data Terminal Ready
128. g in 497 7 psig Lo current units of measure captured when ENT was pressed in the previous lt Set gt screen F497 6 oT 2 11 This is the reference pressure that was applied to the DUT when the DUT indicated the cardinal point The frozen pressure value 4 3 2 flashes if the reading was out of tolerance definition of out of tolerance is Set point reading gt DUT tolerance Press ENT to accept this test point and proceed to the next test point lt to repeat the point Repeat the set pressure take reading and accept data procedure until all points in the sequence have been accepted After the last pressure point in the sequence AutoTest complete has been accepted the display is 1data 2new 3repeat Select 1data to view the data collected in the AutoTest that was just completed see Section 3 4 5 1 Select 2news to run a new Quick or File AutoTest Select lt 3repeat gt to repeat the AutoTest that was just completed Press ESCAPE to return to the main run screen 2007 DH Instruments a Fluke Company Page 46 3 OPERATION 34 SETUP o PURPOSE SETUP accesses a menu of functions and features commonly used in setting up and using RPM4 Q OPERATION To access the SETUP menu press SETUP from the MAIN RUN lrange 2res 3stab screen The display is 4UL 5ATest SETUP menu choices include lt 1range gt Save and delete ranges created by AutoRange see Section 3 4 1 lt 2res
129. ge This is the same label used on the RPM4 front panel screen RptLocator Text field identifying the Q RPT position in the RPM4 system IH identifies this as an internal Hi Q RPT IL identifies this as an internal Lo Q RPT Serial The serial number of the Q RPT RngGa The Q RPT default gauge mode range in the current pressure unit RngAbs The Q RPT default absolute mode range in the current pressure unit NONE appears in the field if the Q RPT is a Gxxx BGxxx or Axxx with 2 and negative gauge modes OFF RptMode if Q RPT is and supports absolute gauge and negative gauge measiremen modes if Q RPT is gauge with absolute and negative gauge le OFF and supports only gauge measurement mode N if Q RPT is BGxxx and supports gauge and negative gauge measurement modes Cmd sent RPT2 Get information on the Lo Q RPT enhanced Query reply A350K IL 82345 35 50 A sent RPT3 Get information on the HL Q RPT classic Query reply A7M HL 82345 1000 1000 A Errors ERR 4 External device not detected ERR 10 Invalid suffix 8323 ee es o_o SCRSAV Purpose Read or set the front panel display screen saver activation time Command SCRSAV m Query SCRSAV Classic SCRSAV n SCRSAV Arguments The inactivity period 0 99 minutes after which screen saver activates Default SCRSAV 10 Rema
130. general rule with RPM4 AZOM A7OM AF use of the HEAD function to assure in tolerance measurements with RPM4 A7OM A20M AF is necessary only when the head exceeds 10 in 25 cm if the medium is a gas OPERATION To access the HEAD function press HEAD The display is Edit head height 1 Edit field for head height 8 in N2 2 Test gas currently specified for the head correction Edit the head height to the desired value Press ENT to return to the MAIN RUN screen with the new head correction active Press ESC to return with no changes s The reference height of the RPM4 pressure measurement is the middle of the RPM4 TEST port The head height should be entered as a positive value if the device or system under test is higher than the RPM4 and negative if it is lower Reference Level TEST Port s The HEAD function is NOT range specific The HEAD ON or OFF status remains the same as Q RPTs and ranges are changed Edits made to the head settings are independent of active range or Q RPT 2007 DH Instruments a Fluke Company Page 38 3 OPERATION s When a head correction is being applied it is indicated by lt h gt in the fourth character from the right in the top line of the MAIN RUN screen see Section 5 1 1 When the head correction is zero the lt h gt is not shown s The default head height unit is inches and the fluid species is Nitrogen N2 To change units of head
131. gram message is usually used to ensure the RPM4 is in an idle condition Example sent ABORT enhanced Reply ABORT no reply if IEEE 488 Example Sent ABORT classic Reply ABORT See Also PR PRR RATE SR or CONT 2007 DH Instruments a Fluke Company Page 80 4 REMOTE OPERATION ARANGEn Purpose Read or set a new AutoRange range to use Command ARANGEn Range unit mode RptLabel set to user defined range ARANGE G RPTLabe set to Q RPT default range Query ARANGEn Classic ARANGEn Range units mode RptLabel set to user defined range ARANGE G RPTLabe set to Q RPT default range Query ARANGEn Optional Suffix n A suffix may be used instead of RptLabe 47 Specify the Hi Q RPT 2 Specify the Lo Q RPT Arguments Range The AutoRange maximum pressure Cannot be negative Unit The unit of measure of the Range argument Mode The measurement mode of the Hange argument A for absolute G for gauge RptLabel One of the Q RPTs that is available optional IH Hi Q RPT IL Lo Q RPT Remarks The ARANGE command is used to define an RPM4 range by specifying a desired unit of measure measurement mode and maximum pressure and have the RPM4 pick the best available Q RPT and make adjustments to optimize operation in that range The optional suffix or th
132. gt to access the AutoZ function see Section 3 5 1 Turn AutoZ OFF If you are only verifying the Q RPT as received prior to adjustments leave AutoZ ON Use SPECIAL lt 8cal gt lt 1Hi Q RPT gt or 2Lo G RPT gt lt 1edit gt to read and record the current values of PA and PM for the Q RPT to be calibrated If verifying a calibration in absolute mode also record the value of Run the recommended calibration point sequence for the Q RPT see Section 5 3 4 Record the pressure applied by the standard and the RPM4 reading at each calibration point Dwell at least 60 seconds at each point after setting the reference pressure to allow full stabilization Enter the calibration pressures and RPM4 readings into a spreadsheet Calculate the non corrected RPM4 readings by backing out the PA and PM recorded in Steps and above following non corrected reading corrected reading PA PM If calibrating in absolute mode AutoZ was ON and the value of Pose was not set to zero also add the value of to each reading Perform a linear regression to find the offset and slope that best fit the non corrected RPMA readings to the calibration standard pressures The offset is the new value of PA the slope is the new value of PM Press SPECIAL lt 8Cal gt 1Hi G RPT gt or 2Lo G RPT gt lt 2edit gt and write the new calibration date and the new values of PA and PM for the G RPT calibrated see Se
133. he RPM4 A7OM A20M AF The designation of the pseudo Q RPT that results from the combination of using two Q HL Q RPT RPTs simultaneously in parallel measurement mode High pressure mounting system Bracket used to hold the RPM4 and isolate the Lo Q RPT from the test pressure when it is not in use In an RPM4 with two Q RPTs the Q RPT that is not currently displayed on the top line Inactive Q RPT of the display The inactive Q RPT may be displayed on the second line of the RPM4 display using the Q RPT DISPLAY function The designation of a the Q RPT with the lower full scale default range in RPM4s with Fo two Q RPTs This is the 20 3 000 psi in the A70M A20M AF Whether pressure is being measured relative to absolute zero or vacuum absolute mode M rement M easurement or relative to atmospheric pressure gauge mode Measurement mode in which the Q RPT indicates gauge pressure difference from atmospheric pressure in both positive and negative directions above and below atmosphere Negative gauge or compound gauge Page 137 2007 DH Instruments a Fluke Company RPM4 HPMS A70M A20M AF OPERATION AND MAINTENANCE MANUAL The difference between a Q RPT reading and the AutoZero reference at the time AutoZ is run Used by the AutoZ function when Auto Z is ON to compensate Q RPT readings for changes in zero over time AutoZero reference value Value indicated by the device against whi
134. he range from the MAIN RUN screen use or RANGE to view the active range see Section 3 3 1 s See Table 4 for a listing of all selections and settings affected by AutoRange and their values 3 35 LEAK CK O PURPOSE To run an automated leak check routine that determines the leak rate of the system connected to the RPM4 HPMS TEST port O PRINCIPLE The LEAK CHECK function is provided as a means of checking and quantifying the leaks that may be present in the system connected to the RPM4 HPMS TEST port Page 29 2007 DH Instruments a Fluke Company RPM4 HPMS A70M A20M AF OPERATION AND MAINTENANCE MANUAL The principle of the LEAK CHECK function is the measurement of the natural decrease or increase of pressure in a fixed volume over time The LEAK CHECK function allows a leak check time to be set The total pressure change and the average rate of change over the leak check time are calculated and displayed OPERATION To run a leak check first set the pressure to the desired leak check pressure s Changing the pressure in a test system causes adiabatic temperature changes in the pressurized medium that need to have dissipated before a valid leak measurement can be made In general a O 5 to 1 minute wait before running a leak check is adequate to allow the adiabatic temperature change to dissipate and valid leak measurements to be made However stabilization time may be much longer for large pressure changes and as volu
135. height between inches and centimeters and to change the test fluid species use SPECIAL Shead see Section 3 5 3 3 38 SDS O PURPOSE The SDS function is not used in RPM4 A70M A20M AF 3 3 9 AuroZ O PURPOSE To run the AutoZ function that rezeros the active Q RPT between full calibrations See Section 3 5 1 Principle for a full explanation of the AutoZ function O PRINCIPLE Run AutoZ is the function by which the current Q RPT reading is compared to a reference Pstao at atmospheric pressure to determine a new value of Pottser The value of Pottser is then used by AutoZ to automatically correct the Q RPT for possible changes in zero over time see Section 3 5 1 PRINCIPLE 339 1 AUTOZ IN GAUGE MODE O PURPOSE To rezero the active Q RPT in gauge measurement mode See Section 3 51 Principle for a full explanation of the AutoZ function O OPERATION s For the AutoZ function key to run AutoZ AutoZ must be turned ON for the active range and measurement mode AutoZ ON is indicated by lt z gt to the left of the Q RPT designator on the first line of the main run screen AutoZ ON and OFF is set using SPECIAL lt 1AutoZ gt see Section 3 51 If AutoZ is OFF for the active G RPT and measurement mode lt AutoZ is off gt is displayed when AutoZ is pressed To run AutoZ in gauge measurement mode use MODE to set gauge as the measurement mode see Section 3 3 3 and press AutoZ from the mai
136. hen AutoRanging under 10 96 of Q RPT default range Operation is normal 3 3 4 Table 6 Values that should be non zero are displayed as zero Resolution setting needs to be increased to view significant digits Change resolution setting 3 4 2 Keypad presses make undesired sounds or NO sounds Keypad sound settings are incorrect Use SOUND function to set keypad Sounds as desired 3 5 5 2 Bottom line of display has changed and you want to change it back The DISPLAY function has been used to change the display Use DISPLAY to set bottom line to desired display 3 3 6 Bottom line of display is blank DISPLAY mode is clean Use DISPLAY to change bottom line display if desired 3 3 6 The pressure units available under the UNIT function key are not the ones you want UNIT function needs to be customized Use PresU function to customize the UNIT function or reset units to default 3 5 6 3 5 9 2 Front panel display is dim Screen saver option has activated Page 129 Operation is normal Press any key to resume full screen power Adjust screen saver time if desired 3 5 5 1 2007 DH Instruments a Fluke Company RPM4 HPMS A70M A20M AF OPERATION AND MAINTENANCE MANUAL SYMPTOM AutoRange is not selecting the desired Q RPT for the specified range PROBABLE CAUSE The Q RPT range does not cover the specified AutoRange full scale pressure SOLUTION
137. hether the behavior is normal operation or due to an internal or external problem Identify the symptom or unexpected behavior you are observing from the SYMPTOM list below A PROBABLE CAUSE is provided and a SOLUTION is proposed including references to manual sections that provide information that may be of assistance SYMPTOM Will not power up Table 28 Troubleshooting guide PROBABLE CAUSE Blown fuse SOLUTION Replace fuse Cannot access certain functions gt ACCESS RESTRICTED lt User level has been set that restricts access to certain functions Change user level or consult system manager 3 5 5 5 Displays lt FATAL ERROR gt or lt FATAL FAULT gt Encountered unresolved internal software conflict Cycle power to clear Please record conditions leading up to event including the numbers displayed when ENT is pressed and report to your DHI Authorized Service Provider Table 23 Front panel keys seem to be disabled remote command has been sent from a host computer Send local command from host computer or cycle RPM4 power 4 4 4 4 Measured pressure display or other displays have too much not enough resolution Resolution setting needs to be changed Change resolution setting using the resolution function using AutoRange or by initializing an AutoTest 3 4 2 3 3 4 3 3 10 Can t increase resolution to level desired in AutoRanged range Resolution setting is limited w
138. his suffix is used to specify Q RPT to which the command applies since many settings are Q RPT specific Suffix of 1 for Hi Q RPT access Suffix of 2 for Lo Q RPT access Suffix of 3 for HL Q RPT access If an optional suffix is allowed but not given then the Active Q RPT will be addressed The Active Q RPT is the Q RPT that is currently displayed on the top line of the front panel of the RPM4 and is identified by the text label in the upper right of the pressure display screen The last Q RPT ranged or selected using the HANGE or ARANGE commands is the Active Q RPT The ARANGE RANGE or RPT command query can be used to determine which Q RPT is currently active With the Hi Q RPT In differential mode of operation there are some limitations on access to the Lo Q RPT and with the HL Q RPT there are limitations on access to both the Hi and the Lo Q RPTs independently Arguments If the program message can be used to set data inside the RPM then this section describes the arguments and their limits Default If the program message can be used to set data inside the RPM4 then this line shows using the enhanced format the default setting from the factory Remarks This field has the details and remarks about the command Example Examples are given for the enhanced and classic methods Enhanced An example of the use of an enhanced format program message to be sent to the RPM4 is shown
139. ict with the address of any other device on the same IEEE 488 bus The receiving terminating character must be a line feed and EOI Carriage returns are ignored if received The RPM4 sends a line feed and asserts the EOI line to terminate a reply These settings are fixed to agree with IEEE Std 488 2 If you change the address the IEEE interface will reset PON and become idle 352 3 lt gt The RPM4 has two different syntax formats available for the remote program commands The classic remote command format is highly intuitive and conforms with previous DHI PPC and RPM products The enhanced remote command format generally uses the same commands as the classic format but in addition it follows the syntax format and status reporting features of IEEE Std 488 2 The details of each format are covered in Section 4 3 SPECIAL lt 2remote gt lt 4format gt allows the remote program command syntax to be selected The cursor is on the active format Select lt 1classic gt or lt 2enhanced gt as desired 3524 lt 5232 SELF TEST gt The RS232 self test is provided to check the RPM4 COM ports and the interface cable independently of an external device or computer If you are having difficulty communicating with RPM4 from a host computer using RS232 the RS232 self test can help establish that the RPM4 COM1 port you are trying to communicate with and the interface cable you are using are good To run a self test of
140. ide View sds iu eite E thee tti td 10 RPM frontparel 55 eet o eet ota ede teet 10 RPM4 rear parel eic oC le Lm a emet cmt ee ttg 11 MAIN RUN screen display fields nennen nenne nennen 16 Keypad adt ente dd eese 17 RPMA FIPMS TEOFIEVIGW eet dpa cetera dei edad verenda eva rou D Pra 22 HPMS pneumatic schematic sse ener nenas 23 Status register schematic 98 RPM4 HPMS disassembly view ssssssssssssesseseee ener nnne en nnne nnns 115 RPMA4 internal view 3 HER o aa a 116 Pneumatic schematic of RPM4 Q RPT 2 118 RPM4 Illustrated Parts Breakdown of Front 118 RPM4 Illustrated Parts Breakdown of Rear 119 RPM4 Illustrated Parts Breakdown of Display 120 RPM4 Illustrated Parts Breakdown of Internal 2 00 0 0 121 RPM4 Illustrated Parts Breakdown of Internal 004 122 RPMA Illustrated Parts Breakdown of Electronic 123 HPMS SCGliGITialiC iit oreet eet eerte
141. ins an 8 bit Ready Status Register that reflects specific RPM4 Q RPT measurement ready events Enabled events in this register will set or clear the RSB bit of the Status Byte Register Table 18 8 bit ready status register N A MEAS NRDY RDY N A MEAS NRDY RDY 128 Lo Lo Lo 8 HI HI HI 64 32 16 4 2 1 This register can be read using the RSR query Each of these status bits can set the RSB bit of the Status Byte Register causing a SRQ to occur IF the RSB bit is enabled to do so The Standard Event Status Enable Register RSE program message determines which of these flags are able to assert the RSB bit The description of these bits are given as MEAS LO Lo RPT measurement ready Bit 6 64 Indicates that the Hi Q RPT has completed Q RPT measurement NRDY LO Lo Q RPT pressure Not Ready Bit 5 32 Indicates that the Hi Q RPT made a transition from Heady to Not Heady as defined by the stability settings see Section 3 2 1 RDYLO Lo Q RPT pressure Ready Bit 4 16 Indicates that the Hi Q RPT is Ready as defined by the stability settings see Section 3 2 1 MEASHI Hi Q RPT measurement ready Bit 2 4 Indicates that the Hi Q RPT has completed a Q RPT measurement NRDYHI Q RPT pressure Not Ready Bit 1 2 Indicates that the Hi Q RPT made a transition from Heady to Not Heady as defined by the stability settings see Section 3 2 1 RDY HI Hi Q RPT pressure Ready Bit 0 1 Indicates that the Hi Q RPT
142. ion 5 5 6 2 s To go to a DISPLAY other than RPT press DISPLAY and make a new DISPLAY choice see Section 3 3 6 3365 Hi Lo O PURPOSE To activate the Hi Lo DISPLAY s See Section 3 3 6 O Principle O OPERATION To activate the Hi Lo DISPLAY press DISPLAY lt 5Hi Lo gt Pressing lt 5Hi Lo gt resets the Hi Lo values and returns to the main run screen with the Hi Lo DISPLAY active With the Hi Lo DISPLAY active the main run screen is 9989 2 psi 2 1 Highest pressure observed since Hi Lo reset H 9991 5 L 9987 3 2 Lowest pressure observed since Hi Lo reset t t The Hi Lo values change each time a new Hi or Lo pressure is observed s The Hi Lo record can be reset at any time by pressing ENT This allows a Hi Lo reset without going back through the DISPLAY menu s If the pressure measurement unit mode or range is changed while the Hi Lo DISPLAY is active Hi Lo resets s To go to a DISPLAY other than Hi Lo press DISPLAY and make a new DISPLAY choice see Section 3 3 6 2007 DH Instruments a Fluke Company Page 36 3 OPERATION 336 0 Freeze O PURPOSE To activate the Freeze DISPLAY s See Section 3 3 6 O Principle O OPERATION To activate the Freeze DISPLAY press DISPLAY lt 6Freeze gt Pressing lt 6Freeze gt returns to the main run screen with the Freeze DISPLAY active With the Freeze DISPLAY active the main run screen is 4435 6 psia zHi 1 Pressure measured by
143. is set up appropriately for the DUT to be tested but the AutoTest increments don t execute See OPERATION in this Section for information on running a Quick or File AutoTest See Section 3 4 5 2 for information on setting up File AutoTest files See Section 3 4 5 1 for information on viewing the data files that result from running a File AutoTest OPERATION To run an AutoTest press ENT from the Rate RPT AutoTest or Clean run screen DISPLAY modes that do not use ENT see Section 3 3 6 The display is b cee Select lt 1Quick gt to run a Quick AutoTest or lt 2File gt to run a File AutoTest see PRINCIPLE above in this Section If lt 2File gt is selected the File AutoTest file number must be specified see Section 3 4 5 2 The test is initialized automatically using the information in the File AutoTest file and test execution begins with the lt SET VALVE FOR RPT gt screen see Section 3 2 10 2 If lt 1Quick gt is selected test initialization begins with the Measurement mode gt screen see Section 3 2 10 1 3 3 101 AUTOTEST INITIALIZATION When lt 2File gt is selected to run a File AutoTest the test initialization information is obtained from the file selected Operation proceeds directly to the test confirmation The RPM4 asks the operator to confirm the range of the AutoTest lt ENTER to run gt AutoRanges see Section 3 3 4 and operation proceeds directly to test execution see Section 3 3
144. ition The Reset All resets are itemized in Table 11 Table 11 Reset All RESULT SEE SECTION Reset Sets All the resets of Reset Sets Reset Units All the resets of Reset Units Reset Atest All the resets of Reset ATest Reset All the resets of Reset Cal Remote Interfaces COM1 COM2 and IEEE R88 interfaces to default settings Remote Communications Remote command format to Classic Level Security Reset security level to low Parallel Measurement Mode Page 71 Off 2007 DH Instruments a Fluke Company RPM4 HPMS A70M A20M AF OPERATION AND MAINTENANCE MANUAL NOTES 2007 DH Instruments a Fluke Company Page 72 4 REMOTE OPERATION DH Instruments A Fluke Company 4 REMOTE OPERATION 41 OVERVIEW Most of the RPM4 front panel functions can also be executed by commands from a remote computer The host computer can communicate to the RPM4 using the RPM4 s COM1 RS232 port or it s IEEE 488 port Before writing code using RPM4 remote commands familiarize yourself with its operating principles by reviewing Section 3 of this manual 4 2 INTERFACING Sending a program message to the RPM4 places it into remote mode The remote indicator to the right of the display window lights when the RPM4 is in remote mode It also flickers when a program message is received The menus usually accessed from the front panel are lock
145. k test or a reset has cleared previous leak test results the results screen displays lt Data NOT available gt briefly and returns to MAIN RUN screen Press ENT or ESC to return to the MAIN RUN screen 2007 DH Instruments a Fluke Company Page 30 3 OPERATION s Leak check is range specific in the sense that a leak check is run using the active range However only one set of leak check results is maintained in memory and each leak test completed overwrites the memory View leak check always shows the results of the last leak check run regardless of the range that is now active The results screen includes the range indicator to indicate the range in which the leak check was run 3 3 6 DISPLAY O PURPOSE To select from a variety of choices the information that is displayed on the second line of the RPM4 display O PRINCIPLE RPM4 supports a variety of advanced pressure measurement functions that are displayed on the second bottom line of the RPM4 display In summary the available display functions included are AVERAGE Calculates the average measured pressure over a user specified period of time and displays the average the standard deviation about the mean and a countdown in seconds to the next average see Section 3 3 6 1 This function is often used to filter out pressure noise in an unstable system The magnitude of the noise is quantified by the standard deviation about the mean A second Avg screen allows the insta
146. ke Company RPM4 HPMS A70M A20M AF OPERATION AND MAINTENANCE MANUAL CONTn Purpose Have the RPM4 reply continuously as each new measurement becomes available Query Classic CONTn Optional Suffix n The active Q RPT is assumed if no suffix is given 47 Specify the Hi Q RPT 2 Specify the Lo Q RPT Remarks This command is somewhat different from most as it enables the RPM4 to continuously output the selected Q RPT s measurement without further queries This continues until the next query is received by the or if the ABORT CLS command is received The frequency of the measurements is determined by the readrate of the Q RPT The data returned includes the pressure of the specified or active Q RPT current unit of measure and measurement mode Example Query sent CONT 1 enhanced Query reply 1936 72 kPa repeats every measurement cycle Example Query sent CONT classic Reply 1936 72 kPa a repeats every measurement cycle See Also PR HEADRATE ABORT DATE Purpose Read or set the RPM4 date Command DATE date Query DATE Classic DATE date DATE Arguments date The date in the numerical only format YYYYMMDD Remarks The RPM4 has an internal real time calendar clock The span of acceptable dates ranges from 19800101 to 20791231 The reply is alwa
147. l number 6000 psig 6 6 of points in the AutoTest 20050922 10 51 01 am 3 Date and time that the last point in the AutoTest was executed 3 Press or to scroll through the headers of the other AutoTest data files available RPM4 stores up to ten AutoTest data files in order of execution with a new data file pushing all the files back and deleting the oldest one When the header of the AutoTest data file you would like to view appears press ENT to view the first point of the identified AutoTest data file The display is 1 reading logged for the test point 2 Head AutoZ and Q RPT indicator same as in the RPM4 main run screen see Section 3 1 1 1 2 3 Indication that this is an AutoTest data file view screen 0 00 psig hzHi 4 lt gt indicating that the AutoTest was a File AutoTest or QA indicating a Quick View data FA 1 10 AutoTest This is preceded by lt OT gt if the test point was out of tolerance definition of out of tolerance is Set point reading gt 3 4 5 DUT tolerance 5 Number of this test point over total number of points in the AutoTest Press ENT to move to the next data point Press lt or to scroll backward and forward through the test points The data file header is between the first point and the last point Press ESC to exit the data file Confirmation is required to exit the data view function s Up to ten data files are buffered
148. lay is 0 25 FS Filel Page 53 2007 DH Instruments a Fluke Company RPM4 HPMS A70M A20M AF OPERATION AND MAINTENANCE MANUAL Enter the tolerance in of full scale measurement uncertainty precision or accuracy as desired of the DUT to be calibrated using this File AutoTest The value entered will be used along with the DUT full scale to determine RPM4 AutoRange settings when the AutoTest is run see Section 3 3 10 O PRINCIPLE The display is Number of targets 1 Filel Enter the total number of pressure points or target pressures to be included in the AutoTest The maximum number of points is 21 If data is to be taken at zero pressure include the zero points in the point count Pressure target N The display is pee 0 00 psi g Filel Enter the numerical value of the target pressure point lt N gt Repeat until all of the points in the File AutoTest have been defined After entering the last pressure target the Save as File display is AutoTest 1 Enter the identifying number under which this File AutoTest definition file should be saved A confirmation is required to overwrite and existing sequence While editing a File AutoTest pressing ESC backs through entries until editing of the pressure target values has begun Then ESC can only be used to abandon editing 35 SPECIAL O PURPOSE SPECIAL accesses a menu of RPM4 functions and features that are less commonly used or not normally used i
149. le 23 Check that one of the two green Valve Status LEDs on the front panel of the HPMS is lit the red LED should NOT be ON If neither of the green LEDs on the HPMS front panel lights check that the 12 pin circular connector at the rear of the RPMA itself is properly connected to the ACC J1 connector 25 2 CHECK PRESSURE MEASUREMENT OPERATION 2521 CHECKING ABSOLUTE MODE PRESSURE MEASUREMENT Let the RPM4 warm up with power ON for approximately 30 minutes Press MODE on the RPM4 and select absolute If desired change the pressure unit of measure using UNIT see Section 3 3 2 Open the RPM4 HPMS TEST port to atmosphere Put the valve knob in the HPMS front panel into the Lo Q RPT Active position This opens the Lo and Hi Q RPTs to the HPMS TEST port Use RANGE see Section 3 3 1 to select the Lo Q RPT Observe the RPM4 indicated pressure Check that the agreement of the RPMA indicated value with a calibrated barometer in the same room is 0 15 psi The calibrated barometer must have a measurement uncertainty of 0 25 of better Use RANGE to select the Hi Q RPT Check that the agreement of the RPM4 indicated value with a calibrated barometer in the same room is 0 5 psi If a Q RPT does not agree within tolerance it may need to be AutoZeroed see Section 3 3 9 calibrated see Section 5 3 or repaired 2522 CHECKING GAUGE MODE PRESSURE MEASUREMENT Let the RPM4 warm up with power ON for at approximately 30 minutes
150. ll scale in pressure unit of measure e DUT tolerance in 96 FS full scale e Test increment in FS Quick AutoTest or number of test increments and the value of each increment in the pressure unit of measure File AutoTest e Test point sequence ascending descending or both Quick AutoTest only The initialization data is used to AutoRange the RPM4 appropriately for the DUT and test to be run At the end of the AutoTest initialization the RPM4 is AutoRanged as follows see Section 3 3 4 Table 4 e Q RPT The Lo Q RPT is active if the maximum pressure in the AutoTest is less than 20 MPa 3 000 psi the Hi Q RPT is active if the maximum pressure in the AutoTest is greater than 20 MPa 3 000 psi e Pressure measurement mode and unit As specified in the AutoTest initialization e Display resolution The DUT tolerance divided by 10 and rounded to the nearest digit or 1 ppm of Q RPT span whichever is greater Page 43 2007 DH Instruments a Fluke Company RPM4 HPMS A70M A20M AF OPERATION AND MAINTENANCE MANUAL e Stability test for Ready Not Ready indication see Section 3 2 1 The DUT tolerance divided by 10 or 2 ppm of Q RPT span whichever is greater e Upper limit UL The DUT full scale plus 5 or the Q RPT s maximum UL whichever is less see Section 3 4 4 To AutoRange the RPM4 based on DUT characteristics but not execute an AutoTest the AutoTest can be aborted just after the initialization Then the RPM4
151. me and pressure increases To access the LEAK CHECK function press LEAK CHECK from the MAIN RUN screen Select lt 1run gt to run a leak test The display is Set leak check time 1 Edit field for the time over which the leak rate will be 15 s determined in seconds 1 Edit the leak check time if desired minimum 1 maximum 999 seconds and press ENT Press ENT again when ready to start the leak test The leak test display is 1 1 Standard MAIN RUN screen first line showing measured pressure 2 Active Q RPT position indicator 4566 8 psi g Hi 3 Indication that leak test is running and countdown of time Leak testing 13 s remaining 3 ESC can be used to abort the running leak test ENT while the leak test is running restarts the leak check timer When the leak check timer countdown has completed RPM4 beeps three times and the leak check results screen is displayed 1 2 1 Total pressure change from start to finish of leak check time 2 Indicator of Q RPT used to run the leak check 3 Average rate of change of pressure over the leak check Rate 0 008 psi sec time period AP time in seconds From the leak check results screen press ENT to repeat the leak test Press ESC to return to leak check main menu and exit to the MAIN RUN screen To view the results of the most recently completed leak check press lt 2view gt If NO leak check data is stored i e if the RPM4 has never run a lea
152. ments Pref The AutoZ reference pressure in Pa Optional when the RPM4 is not in absolute measurement mode as the reference is usually 0 Remarks The RPM4 AutoZ function can be remotely run with this command only if AutoZero is ON You should ensure that the pressure is stable for valid determination of Zotset Example Cmd sent AUTOZERO RUN enhanced Query reply No reply if GPIB 488 Example Cmd sent AUTOZERO RUN 97283 abs AutoZero to 97283 Paa enhanced Query reply Example Sent AUTOZERO RUN classic Query reply Errors ERR 6 An argument was not given for the AutoZ reference in absolute mode ERR 10 Invalid suffix ERR 53 AutoZero is currently OFF See Also ZOFFSET MMODE AUTOZERO 3 3 9 3 5 1 CALAMB Purpose Read or set the on board barometer calibration Command CALAMB adder mult CalDate Query CALAMB Classic CALAMB aader mult CalDate CALAMB Defaults CALAMB 0 0 1 0 19800101 Arguments Adder The Barometer calibration adder PA in Pascal Mult The Barometer calibration multiplier PM from 0 1 to 100 CalDate The date of the calibration in the format YYYYMMDD Remarks The barometer calibration information can be accessed with this program message Using this program message overwrites the current calibration coefficients so caution must be used Changes made take effect immediately Example sent CALAMB
153. n or repair Page 5 2007 DH Instruments a Fluke Company RPM4 HPMS A70M A20M AF OPERATION AND MAINTENANCE MANUAL 212 INSPECTING CONTENTS Check that all items are present and have no visible damage If damage is noted report it to your Receiving Department for appropriate action A new RPM4 HPMS A70M A20M AF includes all items listed in Table 1 Table 1 RPM4 HPMS A70M A20M AF Parts List DESCRIPTION PART NO RPM4 HPMS A70M A20M AF Reference Pressure 402192 Monitor High Pressure Mounting System ACCESSORIES s Transport case with inserts used for original 124198 ES Foot switch assembly 401613 PGC 10000 AF Documentation Disk including 402189 e RPM4 HPMS A70M A20M AF Operation and Maintenance Manual p n 550136 e GPC1 10000 AF Operation and Maintenance Manual p n 550135 e GB 152 AF Operation and Maintenance Manual p n 550137 Calibration Report 550100 Test Report PGC 10000 AF if the RPM4 HPMS is 550138 delivered as part of an PGC 10000 AF system Power cord 7 5 ft 100770 General Accessories Disk white CD Important 102987 Includes system support software and documentation 22 PGC 10000 AF SYSTEM RPM4 HPMS A70M A20M AF is usually delivered as the reference pressure measurement component of a PGC 10000 AF Pneumatic Gauge Calibrator The PGC 10000 AF system includes e RPM4 HPMS A70M A20M AF Reference pressure monitor and high pressure mounting system used as the pressure measuring refere
154. n over pressure function The over pressure function executes when a Q RPT measures a pressure that is greater than 104 96 of the Q RPT s default span This is 3120 psi 215 2 MPa for the A20M Q RPT and 10400 psi 717 2 MPa for the A70M Q RPT 2007 DH Instruments a Fluke Company Page 50 3 4 5 3 OPERATION The over pressure function causes the measured pressure display to flash The overpressure function also logs the time and date of the overpressure condition in both user and factory logs to assist in incident diagnosis see Section 3 5 7 5 To recover from an overpressure condition cycle RPM4 power Before cycling power be sure to correct the condition that caused the overpressure lt BATEST gt O PURPOSE To view data collected while running an AutoTest and or to view and edit File AutoTest definition files See Section 3 3 10 PRINCIPLE for information on the AutoTest function O OPERATION To access the ATest menu select SETUP lt 5ATest gt The display is Select lt 1data gt to view AutoTest results data see S Select lt 2file gt to view or edit an AutoTest definition aza file see Section 3 4 5 2 345 1 DATA Q PURPOSE To view the data files that are created when an AutoTest is run O PRINCIPLE RPM4 supports AutoTest automated tests see Section 3 3 10 When an AutoTest is run the RPM4 pressure measurement accepted by the operator at each point is logged The logged pressure measurements an
155. n regular operation Q OPERATION lAutoZ 2remote 3head Press SPECIAL from the MAIN RUN screen to access the SPECIAL menu The display is ASDS 5prefs 6Punit 7intern 8cal 9reset s Some screens such as the SPECIAL menu go beyond the two lines provided by the display This is indicated by a flashing arrow in the second line of the display Press the cursor control keys to move the cursor to access the lines that are not visible or directly enter the number of the hidden menu choice if you know it SPECIAL menu choices include lt 1AutoZ gt Manage the AutoZero function for the active Q RPT see Section 3 5 1 lt 2remote gt View and edit COM port RS 232 and IEEE 488 interface settings Select remote syntax style see Section 3 5 2 lt 3head gt Set HEAD function fluid and height unit of measure see Section 3 5 3 lt 4SDS gt Feature not used in this RPM4 model lt 5prefs gt View and set screen saver time keypad sound frequency unit ID number time date security protection level see Section 3 5 5 lt 6Punit gt Customize the UNIT key pressure unit of measure selections See section 3 5 6 2007 DH Instruments a Fluke Company Page 54 lt 7intern gt lt 8cal gt lt 9reset gt 3 OPERATION Access internal functions including on board barometer viewing read rate adjustment incident log viewing see Section 3 5 7 View and adjust RPM4 G RPT and barometer calibration coefficients see Sections
156. n run screen lt Running gauge AutoZ gt is displayed briefly before returning to the main run screen Page 39 2007 DH Instruments a Fluke Company RPM4 HPMS A70M A20M AF OPERATION AND MAINTENANCE MANUAL A Before running AutoZ in gauge mode ensure that the pressure applied to the Q RPT is truly zero gauge atmospheric pressure If running AutoZ in gauge mode results in a zero offset that RPM4 considers unusually large Confirm O gauge Pl is displayed Check that zero gauge pressure is applied to the Q RPT module rear panel TEST port and the ATM port is open to atmosphere and unobstructed s Allow the RPM4 to stabilize at atmospheric pressure and ambient temperature for 2 to 3 minutes before running AutoZ in gauge mode 3392 AUTOZ IN ABSOLUTE MODE O PURPOSE To rezero the active Q RPT in absolute measurement mode See Section 3 5 1 Principle for a full explanation of the AutoZ function OPERATION s For the AutoZ function key to run AutoZ AutoZ must be turned ON for the active Q RPT and measurement mode AutoZ ON is indicated by lt z gt to the left of the range designator on the first line of the main run screen AutoZ ON and OFF is set using SPECIAL lt IAutoZ gt see Section 5 5 1 If AutoZ is OFF for the active range and measurement mode lt AutoZ OFF gt is displayed when AutoZ is pressed To run AutoZ in absolute measurement mode use MODE to set absolute measurement mode see Section 3 3 3
157. nable Register ESE program message determines which of these flags are able to assert the ESB bit The description of these bits are given as PON URQ CMD EXE DDE QYE RQC OPC Power On Bit 7 128 Indicates that the RPM4 power has been cycled since the last time this bit was read or cleared User Request Bit 6 64 Indicates that the RPM4 was set to local operation manually from the front panel by the user pressing the ESC key Command Error Bit 5 32 Indicates that a remote command error has occurred A command error is typically a syntax error in the use of a correct program message Execution Error Bit 4 16 Indicates if a remote program message cannot be processed due to device related condition Device Dependent Error Bit 3 8 Indicates that an internal error has occurred in the RPM4 such as a transducer time out Query Error Bit 2 4 Indicates that an error has occurred in the protocol for program message communications This is typically caused by a program message being sent to the RPM4 without reading a waiting reply Request Control Bit 1 2 This bit is not supported as the RPM4 cannot become the active controller in charge Operation Complete Bit 0 1 Indicates that the RPM4 has completed all requested functions Page 99 2007 DH Instruments a Fluke Company RPM4 HPMS A70M A20M AF OPERATION AND MAINTENANCE MANUAL 4 5 4 READY STATUS REGISTER The RPM4 conta
158. nce of the calibration system e GPC1 10000 AF Gas pressure controller used to set and adjust high pressure gas in the calibration system e GB 152 AF Gas booster package used to supply gas pressure up to 10 000 psi 70 MPa to the GPC1 10000 AF pressure controller 2007 DH Instruments a Fluke Company Page 6 2 INSTALLATION Each of the three components of the PGC 10000 AF system has its own Operation and Maintenance Manual and individual setup and start up instructions Figure 1 shows the typical setup configuration of a complete PGC 10000 AF system RPM4 HPMS A70M A20M Reference Pressure Monitor GPC1 10000 AF Gas Pressure Controller ET GB152 AF t Drive Air Control Kit GB152 AF Gas Booster jl em E Remote ENTER Footswitch Figure 1 Typical PGC 10000 AF installation layout 2 3 SITE REOUIREMENTS The RPM4 HPMS A70M A20M AF is usually delivered as part of an PGC 10000 AF pneumatic gauge calibrator The PGC 10000 AF also includes a GPC1 10000 AF and a GB 152 AF that each have their own Operation and Maintenance Manual See the GPC1 and GB 152 Operation and Maintenance Manuals for information on their site requirements Also see Section 2 2 for information on setup of a complete PGC 10000 AF system Install
159. nder test DUT that is being calibrated Note that using AutoRange or AutoTest automatically sets the UL to just above the AutoRange full scale see Sections 3 3 4 3 3 10 s The default upper limit is 105 of AutoRange span or 102 of default maximum range when AutoTest is used whichever is lower O OPERATION To view or edit upper limit of the active range press SETUP lt 4UL gt The display is Upper limit Hi 1 Entry field for upper limit value in active pressure unit of 10200 psi a measure and measurement mode 1 Edit the upper limit value as desired The maximum upper limit is 105 96 of span in an AutoRange range or 102 96 of default Q RPT full scale whichever is smaller Press ENT to return to the MAIN RUN screen with the new upper limit active Press ESC to return to the MAIN RUN screen with no change to the upper limit When the upper limit has been exceeded the display of current pressure flashes and a beep sounds for 3 seconds on 2 seconds off intervals Reduce the pressure applied to RPM4 so that it is below the upper limit to return to normal operation Upper limit values are specific to each range and measurement mode Be careful not to assume that the upper limit set in one measurement mode will apply to the other For example if you change the upper limit in gauge mode the upper limit will not be changed in absolute mode 344 1 OVER PRESSURE FUNCTION In addition to the UL function RPM4 has a
160. ng combined and expanded k 2 following the ISO Guide to the Expression of Uncertainty in Measurement L222 ON BOARD BAROMETER The measurement uncertainty of the on board barometer is not significant to RPM4 Q RPT measurement uncertainty It is used only to measure small short term changes in atmospheric pressure to provide dynamic compensation of the Q RPT s atmospheric pressure offset when in gauge pressure measurement mode see Section 3 2 2 Sensor Technology Micro machined silicon Warm Up Time None required Resolution 0 1 Pa 0 000015 psi Page 3 2007 DH Instruments a Fluke Company RPM4 HPMS A70M A20M AF OPERATION AND MAINTENANCE MANUAL NOTES 2007 DH Instruments a Fluke Company Page 4 2 INSTALLATION D H DH Instruments A Fluke Company 2 INSTALLATION 2 1 UNPACKING AND INSPECTION s RPM4 HPMS 7 2 is usually delivered as part of an 10000 system which includes a 1 10000 gas pressure controller and GB 152 AF gas booster 2 11 REMOVING FROM PACKAGING RPM4 HPMS A70M A20M AF is delivered along with its accessories in a reusable molded plastic shipping container with polyurethane inserts to hold it in place Remove the RPM4 HPMS A70M A20M AF and its accessories from the shipping container and remove each element from its protective plastic bag s Retain the shipping container for repacking the RPM4 HPMS A7OM A2OM AF when it is shipped for recalibratio
161. ng the as received PA PM and values to the readings calculates as received readings the readings that the transducer would have made with the old PA PM and s It is recommended that as received values of PA PM and be recorded for each range prior to running the calibration The current PA PM and Pose can be viewed by pressing SPECIAL amp cal lt 1view gt is only relevant if absolute mode AutoZero is used in normal operation 5 3 2 EQUIPMENT REQUIRED The recommended calibration standard for the RPM4 A70M A20M AF G RPTs is DHI PG7202 piston gauge with a DHI RPM4 10 reference pressure monitor connected to the PG7202 as its external barometer Contact DHI for additional information Gas operated piston gauge deadweight tester with the following characteristics Do not put oil or other liquids into RPM4 A7OM AZOM AF Q RPTs e Measurement uncertainty of 0 005 of reading or better A standard with higher measurement uncertainty may be used but RPM4 measurement uncertainty may be degraded proportionally from normal specifications e Able to apply absolute pressures If after calibration the RPM4 will be used in absolute measurement mode the calibration must be performed using absolute 2007 DH Instruments a Fluke Company Page 108 5 MAINTENANCE ADJUSTMENTS AND CALIBRATIONS pressures Absolute pressures are be defined by adding atmospheric pressure measured by a barom
162. ng values expressed in other units Table 29 Pressure unit of measure conversion coefficients pea m uu O 1 sr re pere r rs Page 133 2007 DH Instruments a Fluke Company RPM4 HPMS A70M A20M AF OPERATION AND MAINTENANCE MANUAL NOTES 2007 DH Instruments a Fluke Company Page 134 8 WARRANTY DH Instruments A Fluke Company 8 WARRANTY 81 OVERVIEW Except to the extent limited or otherwise provided herein DH Instruments a Fluke Company warrants for one year from purchase each new product sold by it or one of its authorized distributors only against defects in workmanship and or materials under normal service and use Products which have been changed or altered in any manner from their original design or which are improperly or defectively installed serviced or used are not covered by this warranty DH Instruments and any of its Authorized Service Providers obligations with respect to this warranty are limited to the repair or replacement of defective products after their inspection and verification of such defects All products to be considered for repair or replacement are to be returned to DH Instruments or its Authorized Service Provider after receiving authorization from DH Instruments or its Authorized Service Provider The purchaser assumes all liability vis a vis third parties in respect of its acts or omissions involving use of the products In no event shall DH Instrumen
163. nges SPECIAL lt 5pref gt lt 4ID gt lt 2edit gt SPECIAL lt 6Punit gt SPECIAL lt 7internal gt SPECIAL lt 7internal gt lt 3RPT2x gt NOT USED SPECIAL lt 7interrnal gt lt 5log gt clear log SPECIAL lt 8cal gt SPECIAL lt 8cal gt lt 2edit gt under any selection SPECIAL lt 4reset gt SPECIAL lt 4reset gt lt 4cal gt SPECIAL lt 4reset gt lt 5all gt Remote communications disabled en indicates the function menu is NOT accessible 2007 DH Instruments a Fluke Company Page 64 3 5 6 3 OPERATION Q OPERATION RPM4 is delivered with no active password and access to the User Level menu is open The user level is set to lt 1Low gt User levels can be changed freely until a password has been created To access the LEVEL function 1change user level press SPECIAL lt 5prefs gt lt 5level gt 2edit password The display is Selecting lt 1change user level gt brings Restrictions 1 up the restriction menu 21 3medium 4high The cursor is on the current restriction level Select a different level or or ESC back to the MAIN RUN screen If no password is active selecting lt 2edit password gt displays the user password and allows it to be edited Password PPPPPP 0 disables password A Once a password has been entere
164. ngs to default or factory values PRINCIPLE RPM4 stores its user definable settings in non volatile memory The reset menu allows the user to selectively or completely reset these settings to factory defaults This clears any settings that the user has made and should be used only to restore the RPM4 to a known state RPM4 goes through its power up sequence after any type of reset is executed RPM4 reset functions will change current settings to factory defaults These may include settings vital to RPM4 operation and affecting the calibration of the quartz reference pressure transducers Q RPTs Reset functions should only be used by qualified personnel with knowledge of reset consequences Reset functions should never be used experimentally O OPERATION To access the RESET menu press SPECIAL lsets 2units 3ATest lt 9reset gt The display is 4cal 5all RESET menu choices include lt 1set gt to reset general system operating parameters see Section 3 5 9 1 lt 2units gt to reset unit of measure functions see Section 3 5 9 2 lt 3ATest gt to reset AutoTest parameters clear File AutoTest files and clear the AutoTest data log see Section 3 5 9 3 lt 4cal gt to reset internal calibration coefficients and modes see Section 3 5 9 4 lt Ball gt to reset all settings except ID and security password to factory default values see Section 3 5 9 5 3591 lt 15 5 gt Q PURPOSE Sets most general operating paramete
165. ninformed or unauthorized altering or deleting of data settings and functions could require extensive reconfiguration by the user and might cause invalid readings and behavior For these reasons depending upon the application in which RPM4 is being used it may be desirable to restrict access to some functions The user level function provides a means of restricting access to certain functions Four different levels of security are available Access to changing security levels can be left open or be protected by a password Security Levels The security levels are structured to support typical operating environments as follows None This level is intended for use only by the system manager and or calibration facility It allows access and editing in all areas including critical metrological information Low Low security is designed to protect the specific metrological information and SYSTEM DIAGNOSTIC AND MAINTENANCE functions of the system against accidental alteration It is intended for an advanced operator performing many different tasks Low security is the default user level setting Medium Medium security is designed to protect specific metrological information in the system and to assure that the RPM4 is operated using consistent operational parameters High High security is designed to protect all operating parameters It is intended to minimize operator choices for example to perform repeated identical calibrations under consiste
166. nstruments a Fluke Company RPM4 HPMS A70M A20M AF OPERATION AND MAINTENANCE MANUAL If the RPM4 is used only in gauge mode Autozeroing in absolute mode is not necessary and vice versa Gauge and absolute mode Autozeroing are completely independent one from the other See Section 3 5 1 for complete information on Autozeroing of RPTs 5 212 ABSOLUTE MODE AUTOZERO When operated in absolute mode a Q RPT should be Autozeroed about once a month or when the RPM4 has been exposed to a temperature change exceeding 15 C 36 F Whether or not AutoZeroing is necessary can also be evaluated by comparing the reading of the RPM4 Q RPT to the reading of a barometer when the RPM4 is vented at atmospheric pressure The barometer should have measurement uncertainty of 0 04 psi 0 28 kPa or better For the Lo Q RPT if the disagreement is greater than 0 05 psi 0 35 kPa the Q RPT should be rezeroed against the barometer For the Hi Q RPT if the disagreement is greater than 0 15 psi 1 kPa it should be rezeroed against the Lo Q RPT or against the barometer Follow the procedures described in Section 3 3 9 2 to perform absolute mode Autozeroing 5 2 2 ADJUSTMENT OF THE ON BOARD BAROMETER PURPOSE To adjust the output of the on board barometer see Section 3 5 7 1 O PRINCIPLE The on board barometer output can be adjusted using PA and PM values following the same principles as for the Q RPTs see Section 5 3 1 1 Since the on board barom
167. nt conditions A RPM4 is delivered with the security level set at low to avoid inadvertent altering of critical internal settings but with access to changing security levels unrestricted It is recommended that the low security level be maintained at all times If there is a risk of unauthorized changing of the security level changing authority should be password protected see O OPERATION of this section Page 63 2007 DH Instruments a Fluke Company RPM4 HPMS A70M A20M AF OPERATION AND MAINTENANCE MANUAL The security levels are structured to support typical levels of operation as shown in Table 6 Specifically the security levels prevent execution of the functions accessed by the key strokes marked by s Table 6 Security levels FUNCTION MEDIUM RANGE ENT AutoTest UNIT MODE AutoRange LEAK CK DISPLAY HEAD SDS NOT USED IN THIS RPM4 MODEL AutoZ in absolute mode SETUP SETUP lt 1range gt SETUP lt 2res gt SETUP lt 4UL gt SETUP lt 5ATest gt SPECIAL SPECIAL lt 1AutoZ gt SPECIAL lt 1 AutoZ gt lt 10n 1off gt SPECIAL lt 1AutoZ gt lt 3edit gt SPECIAL lt 2remote gt SPECIAL lt 2remote gt make changes SPECIAL lt 3head gt SPECIAL lt 4SDS gt NOT USED IN THIS RPM4 MODEL SPECIAL lt 5pref gt lt 1ScrSvr gt SPECIAL lt 5pref gt lt 2sound gt SPECIAL lt 5pref gt lt 3time gt SPECIAL lt 5pref gt lt 3time gt make cha
168. ntaneous pressure values to be viewed during an averaging cycle RATE Calculates and displays the current rate of change of pressure in current pressure units second see Section 3 3 6 2 This function is a useful indication of the stability of the pressure being measured It is often used as an indication of positive or negative leak rate and as a go no go criterion of when to take data when comparing RPM4 and a device under test for example in a calibration Rate is used by the Ready Not Ready function to determine when a Ready condition exists see Section 3 2 1 DEVIATION Continuously calculates and displays the difference between the pressure measured by RPM4 and a target pressure entered by the user See Section 3 3 6 3 This function is useful in monitoring the evolution of pressure around and or away from a desired set point RPT Allows pressure measurement from the RPM4 s two Q RPTs to be displayed simultaneously see Section 3 3 6 4 HI LO Records and displays maximum and minimum pressures measured see Section 3 3 6 5 This function is used to keep track of the minimum and maximum pressure observed in a system over a period of time or to monitor if a pressure min max limit has been exceeded FREEZE Captures and displays the pressure measured by the active range of RPM4 when the ENT key is pressed see Section 3 3 6 6 This function is useful to record the pressure present at the time of an operator observed trigger event
169. ntered in Pascal Run AutoZ by Lo RPT AutoZ by Lo RPT is available only when the active Q RPT is the Hi Q RPT AutoZ by Lo RPT allows the Lo Q RPT in an the RPM4 to serve as the AutoZ reference source of see Section 3 5 1 O PRINCIPLE The Lo Q RPT is read and the new is calculated automatically To access run AutoZ by Lo Q RPT press AutoZ lt 3Lo RPT gt The display is 1 2 1 Real time pressure reading without head correction pressure unit of measure and measurement mode of the active Q RPT 14 03 psia Hi 2 Active Q RPT position designator Pstd 0 14 08 3 Real time reading from the Lo Q RPT 3 Observe the displayed pressures and verify that they are stable When ready press ENT to cause AutoZ to run RPM4 logs both readings and calculates a new AutoZ offset value The display is Press ENT to activate the new value of Old 0 Pa Potiset OF ESC to start over New Porrset 345 The value of P s is always displayed and entered in Pascal Pa 2007 DH Instruments a Fluke Company Page 42 3 OPERATION 3 3 10 ENT RUN AUTOTEST O PURPOSE To run the AutoTest function which runs a calibration test sequence Quick Test or File Test s Run AutoTest is accessed by pressing ENT from the Rate or Clean DISPLAY mode see Section 5 5 6 In other DISPLAY modes the function of ENT is specific to the mode O PRINCIPLE RPM4 supports AutoTest automated sequen
170. ntire message stream has been received so care in determining order of execution is needed If you are using the RS232 port COM1 the Command type will always generate a reply so you must wait for a reply before issuing another program message Because of this you can only send one Command program message at a time while using the COM1 port Page 75 2007 DH Instruments a Fluke Company RPM4 HPMS A70M A20M AF OPERATION AND MAINTENANCE MANUAL Examples EEE 488 enhanced mode command series using query operator CLS Clear the error queue Wait for reply UNIT KPA Generates a reply User must wait for reply before continuing MMODE A Generates a reply User must wait for reply before continuing PR Generates a reply User must wait for reply before continuing 488 enhanced mode commands without query operator CLS Clear the error queue No reply UNIT KPA reply MMODE reply ERR Wait for reply User should use ERR query following a series of non query commands to check for errors that may have occurred 488 enhanced mode multiple commands without query operator CLS Clear the error queue No reply UNIT KPA MMODE A Two command at once No reply ERR Wait for reply User should use ERR query following a series of non query commands to check for errors that may have occurred lt lt COM1
171. ogram message Each of these two types starts with the same basic text referred to as the program message header The two types are COMMAND type and QUERY type commands 4321 USING COMVANDTYPE COMMANDS s Enhanced format commands DO NOT reply when using the IEEE 488 interface unless a is included in the command Do not expect a response from the RPM4 s IEEE 488 interface to non query no commands as there is none Remote software will time out waiting for a response from RPM4 However RS232 communications there is always a response and the response MUST be read prior to issuing another command The COMMAND type of program message executes a process and can additionally send data to the RPM4 in the form of comma delimited arguments This data is usually a setting of some sort that is stored in the RPM4 If data is specified it must be preceded by at least one white space from the program message header and be within the range and format described in the program message description The keyword Command appears to the left of the required syntax in each program message description in Section 4 4 4 If you are using the IEEE 488 port the Command type does not generate a reply unless you place a query operator immediately after the command You also may send multiple program messages at once by separating each program message with a semicolon The commands are queued and executed in as received order after the e
172. omated reading rate and returns to the MAIN RUN screen The default RPM4 condition is auto read rate ON s Auto read rate ON OFF is NOT G RPT or range specific Turning auto read rate ON or OFF in one range turns it ON or OFF for all RPM4 ranges 3573 lt SRPT2x gt PURPOSE This feature is not used in this RPM4 model 3574 O PURPOSE This feature is not used in this RPM4 model 3575 lt gt Q PURPOSE To view and or clear the RPM4 event log o PRINCIPLE RPM4 records to a log each time one of the following events occurs e Pmax of an internal RPM4 Q RPT is exceeded see Section 3 4 4 1 e Amemory fault occurs 2007 DH Instruments a Fluke Company Page 68 3 OPERATION Q OPERATION To view the event log press SPECIAL lt 7internal gt lt 5log gt The oldest logged event appears Pressing ENT steps through the logged events from the oldest to the most recent and ending with the option to clear the log lt 1no gt lt 2yes gt The log clear choice is not available in all security levels see Section 3 5 5 5 Table 6 When all events have been viewed lt End of log gt displays 35 8 lt 8CAL gt O PURPOSE To calibrate the RPM4 Hi and Lo Q RPTs and adjust the on board barometer These functions are considered part of RPM4 maintenance and are covered in the maintenance section of this manual see Sections 5 2 5 3 3 5 9 lt QRESET gt PURPOSE To reset various RPM4 setti
173. on board barometer PRINCIPLE RPM4 A70M A20M AF is equipped with an on board barometer The atmospheric pressure measurements made by the on board barometer are used for dynamic compensation of atmospheric pressure when making gauge pressure measurements see Sections 3 2 2 3 3 3 O PRINCIPLE s See Section 5 4 4 Figure 15 and Section 5 4 5 Figure 14 for a photo and schematics showing the position of the on board barometer in RPM4 s The on board barometer is a low accuracy sensor used only for measuring small changes in atmospheric pressure over short periods of time see Section 5 2 2 RPM4 measurement uncertainty does not depend on the measurement uncertainty of the on board barometer Q OPERATION To view the current reading of the on board barometer press SPECIAL lt 7internal gt lt 1baro gt The display is in the active pressure unit of measure see Section 3 3 2 The display resolution is fixed to 0 1 Pa or its equivalent 357 2 lt 2READRT gt Q PURPOSE To turn ON and OFF RPM4 s automated rate of change dependent reading integration and display rate feature Q PRINCIPLE To obtain maximum resolution from RPM4 Q RPT pressure measurements an integration time of about 1 2 second per reading is used In most situations maximum precision is needed when pressures are stable so a relatively slow display update rate presents no disadvantage However when pressure is changing quickly more rapid pressure u
174. on not available or installed ERR 25 Not used ERR 26 COM port failed to initialize ERR 27 Internal device failure ERR 28 Device failure ERR 29 Device not available ERR 30 Must be on range Hl ERR 31 Exceeds upper or lower limit ERR 32 Not stable enough ERR 37 Data table is full ERR 38 Selected range is not available ERR 39 Data verify error ERR 45 Argument not allowed ERR 46 Argument cannot be negative ERR 52 Command obsolete ERR 53 Not Available 2007 DH Instruments a Fluke Company Page 78 4 REMOTE OPERATION 4 4 3 PROGRAM MESSAGE DESCRIPTION OVERVIEW Each program message description is separated into the following sections Purpose A brief description of the programs message s function Command This is the Enhanced program message syntax to send data to the RPM4 or to execute an RPM4 function The RPM4 must be set to use the enhanced format see Section 3 5 2 3 to use the syntax and style shown It may be sent alone or followed by at least one white space and additional argument s to show that arguments can be passed If there are multiple arguments then commas must separate them If you are using the IEEE 488 port multiple command type program messages can be sent in one message if you separate them with
175. ormally used to record the date on which the Q RPT is calibrated The value of absolute mode AutoZero See Section 3 5 1 for complete AutoZero information This value is must be set to zero for a Q RPT that just been calibrated It should be set to zero before making adjustments e The value of PA The pressure adder for the selected Q RPT see Section 5 3 1 1 e The value of PM The pressure multiplier for the selected Q RPT see Section 5 3 1 1 e Absolute measurement mode ON or OFF See Section 3 3 3 O PRINCIPLE for complete information on measurement modes This is set to OFF if a Q RPT was calibrated in gauge mode with a gauge pressure standard O OPERATION As editing PA and PM values will change the calibration of the Q RPTs the edit function should only be used by qualified personnel as part of the calibration process Caution should be taken to avoid accidental editing A user level security system is available to control access see Section 3 5 5 5 s A new RPM4 is delivered with PA and PM values set to zero and 1 for all ranges This does not mean that the RPM4 has not been calibrated In the original factory calibration privileged factory coefficients are used for calibration with the user PA and PM set to zero and 1 Page 111 2007 DH Instruments a Fluke Company RPM4 HPMS A70M A20M AF OPERATION AND MAINTENANCE MANUAL To access Q RPT calibration information viewing or editing press SPECIAL lt 8
176. osition with an a indicating absolute mode or a g indicating gauge The MODE command can also be used to set the desired measurement mode only Example sent UNIT kPaa enhanced Query reply kPaa Sent UNIT InWag 4 Query reply inWag 4 Sent UNIT InWaa60 Query reply inWaa 60 Example sent UNIT psi enhanced Query reply psi g g used to indicate both gauge amp neg gauge modes Example Sent UNIT kPaa classic Reply kPaa Sent UNIT InWag 4 Reply inWag 4 Errors ERR 7 The unit is invalid ERR 6 The ref is invalid ERR 20 Absolute measurement mode and altitude units are not allowed with a gauge Q RPT See Also MMODE MODE 3 3 2 3 3 3 3 5 6 7 1 1 VER Purpose Identify the US or SI units the Q RPT labels and the software version Query VER Classic VER Remarks The software version of the can be read This is useful for checking for the presence of the and for reference purposes It indicates the internal Q RPT s and software version Example Query sent VER enhanced Query reply DH INSTRUMENTS INC RPM4 us A350K BG15K Ver1 00 Example Query sent VER classic Query reply DH INSTRUMENTS INC RPM4 us A350K BG15K Ver1 00 See Also ID IDN None 2007 DH Instruments a Fluke Company Page 96 4 REMOTE OPERATION ZOFFSETn Purpose Read or set the AutoZ pressure off
177. ow the MAV and ESB bits to assert the SRQ line the argument would be 32 16 48 Bit 6 64 is reserved and cannot be set Remarks The Service Request Enable Register determines which bits of the Status Byte can set the MSS bit of the Status Byte and request service by asserting the SRQ line of the IEEE 488 interface Example Sent SRE 48 enables the and ESB bits enhanced Query reply 48 no reply if IEEE 488 Errors ERR 6 nis not valid 5 Read the Status Byte Register Command STB Remarks The Status Byte Register reflects the general status of the RPM4 The MSS bit state is represented by bit 6 Example Sent Reply 80 The MSS and MAV bits are set TST Purpose Read the power on self test status Query TST Remarks The RPM4 system memory stores the user settings units resolution and retains them when the unit if OFF On power up this memory is checked If this memory is corrupted all user settings are reset to default as if the RST program message was executed and the TST query will return a non zero value If the RPM4 passed the test on power up OR if the TST query was used at least once since the RPM4 was powered up the reply will be 0 Example Sent RST enhanced Reply 17 2007 DH Instruments a Fluke Company Page 102 4 REMOTE OPERATION RSE
178. pdates are usually more important than obtaining maximum precision on individual readings The RPM4 read rate function automatically adjusts pressure measurement integration time depending on the rate of change of pressure When pressure is changing rapidly reading rate is increased When pressure is evolving slowly reading rate is decreased and maximum precision is obtained Page 67 2007 DH Instruments a Fluke Company RPM4 HPMS A70M A20M AF OPERATION AND MAINTENANCE MANUAL When the automated read rate function is ON three pressure rate of change dependent read rates are used The result is three display update rates Table 8 READRT display update rates PRESSURE DISPLAY RATE OF CHANGE UPDATE gt 96 of range span s gt 0 5 and lt 3 of range span s 0 5 of range span s For situations in which maximum reading precision is desired regardless of pressure rate of change the RPM4 automated read rate function can be turned OFF In this case the reading rate is always the high resolution rate of about 1 2 readings per second To turn the automated read rate function ON or OFF or check its current status press SPECIAL lt 7internal gt lt 3ReadRt gt Auto read rate H3 The display is lon 2off The cursor is on the current selection Selecting lt 1on gt activates the automated reading rate and returns to the MAIN RUN screen Selecting lt 2off gt turns OFF the aut
179. r limits OP The pressure of one of the Q RPTs has exceeded the Q RPT s maximum limits ER An internal device failure has occurred Example Query sent SR enhanced Query reply NR Example Sent SR classic Reply NR See Also PRR HS SS UL LL 3 2 1 3 4 4 3 4 4 1 SS n Purpose Read or set the current stability limit as a of range Command 55 limit Query SS Classic SS limit 55 Optional Suffix n The active Q RPT is assumed if no suffix is given 47 Specify the Hi Q RPT 2 Specify the Lo Q RPT Arguments limit The stability limit in FS of the current active range Remarks The stability limit can be read and set as a percent of the full scale range of the Q RPT range Example Cmd sent 55 1 enhanced Query reply 0 10 No reply from GPIB 488 Example Cmd sent 55 4 enhanced Query reply 0 10 95 Example Sent SS 1 classic Reply 0 10 Errors ERR 6 The argument was invalid ERR 10 Invalid or missing command suffix See Also SS 3 4 8 Page 93 2007 DH Instruments a Fluke Company RPM4 HPMS A70M A20M AF OPERATION AND MAINTENANCE MANUAL SSn Purpose Read or set the current pressure stability limit Command SS limit Query SS Classic SS limit Sg Optional Suffix The active Q RPT is assumed if no s
180. rated for gauge mode only access to absolute mode can be turned OFF This is accomplished in the SPECIAL lt 8cal gt menu 2007 DH Instruments a Fluke Company Page 110 5 MAINTENANCE ADJUSTMENTS AND CALIBRATIONS O OPERATION s See Section 5 3 7 for more detailed information on editing and viewing Q RPT calibration information Turning absolute mode operation ON and OFF for a Q RPT occurs in the same area in which calibration coefficients are edited To access the Q RPT calibration editing area press SPECIAL lt 8cal gt and select the desired Q RPT Then select lt ledit gt to make changes ENT through the calibration information screens Allow absolute Hi After viewing the values of PA and PM the display is meas mode loff 2on The cursor is on the number corresponding to the current selection Make the desired selection lt 1no gt causes absolute mode to be unavailable for the Q RPT 536 QRPTCALIBRATIONUSING CALTOOL FOR Q RPTS SOFTWARE To calibrate RPM4 Q RPTs using CalTool software refer to Sections 5 3 1 5 3 2 5 3 3 and 5 3 4 in this manual and then refer to the CalTool for Q RPTs Software Manual CalTool for Q RPTs software and manual are supplied on the RPM4 A70M A20M Support Disk and can be downloaded from www dhinstruments com 537 EDITINGANDMEWNG ORPT CALIBRATION INFORMATION O PURPOSE View and or edit Q RPT calibration information fields including calibration date This field is n
181. rating bi directionally above and below atmosphere through zero BGxxx Q RPTs support gauge and negative gauge measurement modes Default Range DF Q RPT s maximum range that is always available using RANGE and cannot be deleted Deviation A DISPLAY function in which the deviation of the current pressure from a target pressure is displayed DUT Device Under Test The device or devices pneumatically connected to the RPM4 TEST port that the RPM4 is being used to test or calibrate Differential mode Measurement mode in which the measured pressure is the different between the Hi and Lo Q RPT Hi Lo Abbreviation of full scale The full scale value is the maximum pressure of a measurement range Limits and specifications are often expressed as FS Also see span A type of G RPT that is intrinsically gauge but only measures pressure greater than atmosphere Gxxx Q RPTs support gauge measurement mode only Measurement mode in which the Q RPT indicates gauge pressure difference from Gauge Mode atmospheric pressure but only in the positive direction above atmosphere A difference in height between the RPM4 reference level and the DUT A DISPLAY function in which the highest and lowest pressure measurements since HiLo reset are recorded and displayed The designation of a single Q RPT in an RPM4 or if there are two the one that has the Hi Q RPT highest full scale default range This is the A70M 10 000 psi in t
182. rd Event Status Register ESR Error Queue Pending OPC operations Example Sent CLS Reply none ESE Purpose Read or set the Standard Event Status Enable Register Command m Query ESE Default ESE 0 Arguments n 0 to 255 This is the decimal representation of the bit s to enable To enable the PON and QYE bits the argument would be 128 4 132 Remarks The Standard Event Status Enable register determines which bits in the standard Event Status Register are enabled and included in the Status Byte Register ESB bit and can assert the SRQ line The reply is in decimal numeric form Example Sent ESE 128 enables the PON bit enhanced Query reply 128 no reply if IEEE 488 Errors ERR 6 nis not valid ESR Purpose Read the Standard Event Register Command ESR Remarks The Standard Event Register contents are cleared after reading The reply is in decimal numeric form Example Sent ESR enhanced Reply 20 the GYE and EXE bits are set Page 101 2007 DH Instruments a Fluke Company RPM4 HPMS A70M A20M AF OPERATION AND MAINTENANCE MANUAL IDN Purpose Identify the RPM4 version range and serial number Query x DN Remarks The identification reply is made up of the manufacture the model the serial number and the
183. re see Section 5 3 8 s CalTool for RPTs software supports the calibration process of RPM4 Q RPTs CalTool and its documentation are provided on the RPM4 A7OM A20M AF Support Disk which is delivered with a new RPM4 A7OM A20M AF CalTool for RPTs can also be downloaded from www dhinstruments com The use of CalTool software to assist in the calibration of RPM4 is highly recommended If RPM4 will be used in both gauge and absolute measurement modes it must be calibrated in absolute measurement mode applying absolute pressures If RPM4 will be used in gauge measurement mode only it may be calibrated in gauge mode by applying gauge pressures In this case it will no longer have known measurement uncertainty in absolute mode and access to absolute mode operation should be turned OFF see Section 5 3 5 5 311 PAANDPMCOEFFICIENTS The coefficients used to adjust Q RPT readings are designated PA an adder or offset and PM a multiplier or span set The coefficients affect the Q RPT reading following Corrected reading uncorrected reading PM PA PA is expressed in units of pressure always the SI unit Pascal PM is dimensionless Each Q RPT has its own unique PA and PM values The PA and PM values currently in use can be viewed and edited from the front panel in the CAL function see Section 5 3 7 PA and PM values are automatically edited when CalTool software results are activated Page 107 2007 DH Instruments a Fluke Comp
184. re value FUNCTION specific to depending on current and sign the DISPLAY RPM4 DISPLAY mode function Leading character identifies the value Pressure Pressure information Display mode is information indicator depending AVERAGE and value is indicator on current RPM4 standard deviation DISPLAY function Display mode is RATE and value is pressure rate of change per second Display mode is HI LO and value is high then low Display mode is DEVIATION and value is difference from current target lt lt T w gt Display mode is Q RPT and value is measurement of inactive Q RPT lt F gt Display mode is FREEZE and value is last captured reading Blank no character Current display mode is CLEAN Figure 7 MAIN RUN screen display fields 2007 DH Instruments a Fluke Company Page 16 3 1 2 3 OPERATION FUNCTION DATA KEYPAD LAYOUT AND PROTOCOL The RPM4 has a function data keypad for local operator access to direct functions function menus and for data entry 1 The Function Data keys allow very 3 The Menu Data keys provide access to commonly used functions to be accessed directly by a single keystroke when pressed from the MAIN RUN screen see Section 3 1 1 The name of the function is on the bottom half of the key These keys enter numerical function menus when pressed from the MAIN RUN screen The menu name is on the bottom half of the key The SETUP menu is for more freguently used functions see Se
185. rks The RPM4 front panel will dim after a period of keyboard and remote inactivity Setting this value to 0 disables this feature Example sent SCRSAV 30 enhanced Query reply 30 No reply if GPIB 488 Example Cmd sent SCRSAV 30 enhanced Query reply 30 Example Sent SCRSAV 30 classic Reply 30 Errors ERR 6 The argument was invalid See Also 3 5 5 1 2007 DH Instruments a Fluke Company Page 92 4 REMOTE OPERATION SN Purpose To read the serial number of the RPM4 Query SN Classic SN Remarks The RPM4 is serialized The serial number can be read using this program message Example Query sent SN enhanced Query reply 321 Example Sent SN classic Reply 321 See Also 3 5 5 4 SR Purpose Read the next available Ready Not Ready status Query SR Classic SR Optional Suffix n The active Q RPT is assumed if no suffix is given 47 Specify the Hi Q RPT 2 Specify the Lo Q RPT Remarks The current Ready status can be read using this program message Possible replies The pressure is not ready within the limits defined by the stability criterion R The pressure meets the ready criteria The status is replied when the next pressure measurement is finished UL The pressure of one of the active Q RPTs has exceeded the user defined upper or lowe
186. rs back to default values Does not affect calibration coefficients remote interfaces or AutoRange ranges The Reset Sets resets are itemized in Table 9 Page 69 2007 DH Instruments a Fluke Company RPM4 HPMS A70M A20M AF OPERATION AND MAINTENANCE MANUAL Table 9 Reset Sets RESULT SEE SECTION UNIT Pressure unit of measure to first of the six available psi 3 3 2 MODE Measurement mode to the native mode of the Q RPT absolute 3 3 3 RANGE Hi Q RPT default range 10000 psi 3 3 1 HEAD 0 cm height and Nitrogen medium 3 3 7 Stability Limit 0 005 of Hi Q RPT default range 3 4 8 Upper Limit Hi Q RPT default range default value 3 4 4 Resolution 0 001 96 FS of Hi Q RPT default range 3 4 2 AutoZ AutoZ ON for both Q RPTs and gauge and asbsolute 3 5 1 measurement modes Zotse value not affected AutoZ Patmo set to 101 325 kPa a 3 5 1 3 2 2 Leak Check 15 second run time Clear logged results 3 3 5 Screen Saver 10 minutes to activation 3 5 5 1 Key Sounds Medium tone valid key press sound 3 5 5 2 Lo Vnt Automatic 3 5 7 4 ReadRate Automatic 3 5 7 2 3592 lt 2 UNTS gt Q PURPOSE Sets the pressure units available under the UNIT function to default selections depending see Section 3 3 2 Sets the user defined unit to 1 000 Pa see Section 3 5 6 Sets the reference temperature for inWa unit to 20 C 3 5 9 3 lt 5 gt o PURPOSE e Resets Auto Tests
187. s is followed by the current pressure unit of measure atm The pressure measured by the RPM4 on board barometer in the current pressure unit and always absolute This is followed by the current pressure unit Not all RPM4s are equipped with an on board barometer This field is missing if the RPM4 is not equipped with an on board barometer Example Query sent PRR enhanced Query reply R 2306 265 kPaa 0 011 kPa s 97 000 kPa a R 2306 265 0 011 kPa s no barometer Example Query sent PRR classic Reply R 2306 265 0 011 kPa s 97 000 kPa See Also PR SR 3 1 1 3 2 1 3 5 7 1 QPRR Purpose Read the last Q RPT pressure measurement pressure rate and on board barometer output immediately Query QPRR Classic QPRR Optional Suffix n The active Q RPT is assumed if no suffix is given 47 Specify the Hi Q RPT 2 Specify the Lo Q RPT Remarks The last measured Ready Not Ready condition active Q RPT pressure measurement rate of pressure change and barometric pressure is replied in the current pressure unit of measure immediately This program message is useful when a rapid response of measured pressure is needed It does not result in quicker pressure measurements Each data field is separated by a comma and is returned in the following order Ready pressure UNITS rate UNITS s atm UNITS Here are the field descriptions ready Three character ready status field Ref
188. set Pottset for the specified or active Q RPT in the current measurement mode Command ZOFFSETn GaOffset AbsOffset DifOffse Query ZOFFSETn Classic ZOFFSETn GaOffset AbsOffset DifOffset ZOFFSETn Defaults ZOFFSETn 0 0 0 0 0 0 Gauge Q RPT ZOFFSETn 101325 0 0 0 0 Optional Suffix Absolute Q RPT n The active Q RPT is assumed if no suffix is given Vor HI Specify the Hi Q RPT 2 or LO Specify the Lo Q RPT Arguments GaOffset The Q RPT pressure offset Poffset for Gauge measurement mode Pa AbsOffset The Q RPT pressure offset for absolute measurement mode Pa Remarks The pressure offset for the specified Q RPT Hi or Lo can be accessed with this program message There are separate offsets for gauge and absolute modes Using this program message overwrites the current offset so caution must be used Changes made using this program message take effect immediately Example sent ZOFFSET1 2 1 0 0 enhanced Query reply 2 10 Pa 0 00 Pa 0 00 Pa Example Sent ZOFFSET 97293 1 3 02 0 classic Reply 97293 10 3 02 0 00 Errors ERR 6 One of the arguments is out of range See Also 3 5 1 45 STATUS REPORTING SYSTEM The RPM4 status reporting system is used to track and report system status and errors It follows the model of the IEEE Std 488 2 and works for the COM1 and the IEEE 488 port with slight
189. sing ENT causes the RPM4 to AutoRange based upon the DUT characteristics see Section 3 3 4 and the AutoTest proceeds to text execution see Section 3 3 10 2 To AutoRange the RPM4 based on DUT characteristics but not run a test sequence ESC right after AutoRanging completes at the lt Set valve for gt screen 3 3 10 2 TEST EXECUTION The last step of test initialization is to AutoRange the RPM4 see Section 3 3 10 1 then test execution begins The first step of test execution is to set the HPMS Lo Q RPT isolation valve Set 1 f XX RPT correctly for the G RPT that will be used to run the test see 3 2 5 The RPM4 SEC supply fo DUT FS display is XX is Lo or Hi Set the HPMS isolation valve to shut off or use the RPM4 s Lo Q RPT as indicated by the HPMS valve indicator LED see Section 3 2 5 Turn the valve knob fully towards the lit valve indicator LED until it reaches its stop If using a GPC1 to adjust pressure set the GPC1 supply regulator so the GPC1 supply is equal to the DUT full scale pressure see the GPC1 Operation and Maintenance Manual Press ENT when ready to proceed with the test s To abort the test but use the RPM4 with the settings for the DUT that was initialized press ESCAPE from the lt SET VALVE FOR xx PRT gt screen This can be useful for setting up the RPM4 to make DUT adjustments or run tests other than the one defined by the AutoTest Page 45 2007 DH Instruments a Fluke Company
190. software version Each is separated by a comma Example IDN enhanced Reply DH INSTRUMENTS INC RPM4 0100 0015 1234 Ver2 00 dhf OPC Purpose Sets the operation complete bit when all operations have completed Command Query Remarks This Command enables the RPM4 to set the OPC bit in the Standard Event Status Register when it has completed all pending functions The Query replies with a 1 when all functions are complete Example Sent OPC enhanced Query reply 1 Reads the list of installed RPM4 options Query Remarks This Guery returns any registered option s installed in the RPM4 Each option is separated by acomma Possible options IEEE 488 0 The IEEE 488 option is installed Example Sent Reply IEEE 488 0 RST Purpose Resets the RPM4 settings to factory settings Command Remarks This Command sets the RPM4 settings to factory settings This equivalent to a front panel executed RESET SET This does not affect the communications settings Example Sent RST enhanced Reply no reply if IEEE 488 See Also Section 3 5 9 1 Reset Sets SRE Purpose Read or set the Service Request Enable Register Command Query Default SRE 0 Arguments n 0 to 255 This is the decimal representation of the bit s to enable To all
191. spheric pressure which is supplied by definition when the Q RPT is vented to atmosphere 2 Puo pressure reading of the Q RPT with no AutoZ offset at the time AutoZ is performed 3 Pars and Pottseta The difference between the reading of the Q RPT with no AutoZ offset Pu and the Autoz standard Pstao for gauge a and absolute measurement mode Pottset Puo z 4 0 Posse represents the difference between the Q RPT reading Pu and the Autoz standard Pstao The Autoz function manages the determination storage and application of Pottser to correct the zero offset in absolute and gauge measurement modes When the Q RPT is calibrated Pottset is set to zero Pottset is then redetermined at regular intervals using the AutoZ function The most recent value of Persa is applied to the Q RPT reading to correct for zero drift The AutoZ function can be turned ON and OFF Table 5 summarizes the effect of AutoZ ON and OFF in absolute and gauge measurement modes AutoZ in absolute measurement mode The RPM4 A70M A20M AF Q RPTs are intrinsically absolute They have an evacuated and sealed reference and naturally measure absolute pressure difference from vacuum In absolute measurement mode the source of must be an absolute pressure nominally atmospheric pressure with uncertainty significantly better than that of the Q RPT that is Page 55 2007 DH Instruments a Fluke Company RPM4 HPMS A70M A20M AF OPERATION AND MAIN
192. splayed Any time a range change causes the active Q RPT to change the HPMS Lo Q RPT Isolation valve must be operated to connect or disconnect the Lo RPT from the TEST port The green Lo Q RPT Valve Position LEDs indicate the correct position of the Lo Q RPT Valve Isolation Knob based on the RPM4 Q RPT currently in use see Section 3 2 5 Pressing ESC while in the RANGE function returns to the MAIN RUN screen without making a range change The HPMS Lo Q RPT Isolation valve protects the Lo Q RPT 5 psi max from overpressure when the Hi RPT is in use Familiarize yourself with HPMS operation see Section 3 2 5 before changing ranges and applying pressures Always turn the Lo RPT Isolation Valve fully in the direction of the lighted green LED before applying pressure s Range full scale limits are given in the pressure unit that is currently active for that range s Pressing from the MAIN RUN screen provides a shortcut to a momentary view of the active range s Many RPM4 settings and functions are range specific See Table 2 for identification of range specific settings s For best metrological performance vent the 4 G RPT before changing ranges Page 25 2007 DH Instruments a Fluke Company RPM4 HPMS A70M A20M AF OPERATION AND MAINTENANCE MANUAL 3 3 2 UNIT PURPOSE To select the unit of measure in which RPM4 displays pressure values s To select the measurement mode absolute gauge use M
193. ssure in a variety of pressure calibration measurement and testing applications It has been designed to provide very high performance and extensive features combined with maximum versatility ease of use and durability RPM4 A70M A20M AF covers the range from 0 to 10 000 psi gauge and atmosphere to 10 000 psi absolute using two high accuracy quartz reference pressure transducers Q RPTs and an on board barometer to measure pressure RPM4 A70M A20M AF is controlled locally by the operator using its front panel display keypad and foot pedal or remotely by a computer using ASCII character command strings over its RS 232 and IEEE 488 interfaces RPM4 A70M A20M AF uses an AutoRange feature to automatically select the most appropriate Q RPT and to optimize the RPM4 setup to cover the range The HPMS mounts the RPM4 at a convenient viewing angle and contains the hardware to isolate the RPM4 s low pressure Q RPT A20M 3 000 psi when the high pressure Q RPT A70M 10 000 psi is in use RPM4 HPMS A70M A20M AF is typically delivered as part of a PGC 10000 AF Pneumatic Gauge Calibrator The PGC 10000 AF system includes a GPC1 10000 AF pneumatic pressure controller and a GB 152 AF gas booster that have their own Operation and Maintenance Manuals Page 1 2007 DH Instruments a Fluke Company RPM4 HPMS A70M A20M AF OPERATION AND MAINTENANCE MANUAL L2 1 2 1 Power Reguirements Operating Temperature Range Storage Temperature Range W
194. storage case in which it was delivered 2007 DH Instruments a Fluke Company Page 14 3 OPERATION DH Instruments A Fluke Company 3 OPERATION 3 1 USER INTERFACE RPM4 HPMS is designed to offer the optimum balance between simple straight forward operation and the availability of a wide variety of functions with a high level of operator discretion if desired The local operator interface is through the RPM4 front panel 2 x 20 character alpha numeric display a function data keypad a cursor control pad an ENTER footswitch and a Ready Not Ready indicator Remote communications are also available via RS 232 or IEEE 488 interfaces see Section 4 The HPMS mounts the RPM4 at a convenient viewing angle and includes a valve and visual indicators to isolate and protect the RPM4 s 000 psi Q RPT A20M when using the 10 000 psi Q RPT A70M see Section 3 2 5 3 L1 RUN SCREEN The RPM4 MAIN RUN screen is its home display that is reached on power up and from which other functions and menus are accessed It is the very top level of all menu structures The MAIN RUN screen is where RPMA is left in normal operation It displays the current measured pressure as well as a variety of additional information if desired Figure 7 and its legend summarize the RPM4 MAIN RUN screen fields and their functions s RPM4 has a screen saver function which causes the display to dim if no key is pressed for 10 minutes Pressing a k
195. surement cycle is complete This can take up to the current read rate period 1 2 seconds by default Example Query sent PR enhanced Query reply R 1936 72kPaa Example Query sent PR classic Reply R 1936 72 kPa a See Also PRR SR ABORT READRATE CONT 3 1 1 8 2 1 3 5 7 2 2007 DH Instruments a Fluke Company Page 88 4 REMOTE OPERATION PRR Purpose Read the next available Ready condition pressure measurement rate and on board barometer reading Query PRR Classic PRR Optional Suffix n The active Q RPT is assumed if no suffix is given 47 Specify the Hi Q RPT 2 Specify the Lo Q RPT Remarks The next available Ready condition Q RPT pressure measurement rate of pressure change and barometric pressure is replied in the current pressure unit of measure This can take up to the current read rate period 1 2 seconds by default Each data field is separated by a comma and is returned in the following order ready pressure UNITS rate UNITS s atm UNITS Here are the field descriptions ready Three character ready status field Refer to the SR command pressure The measured pressure for the active Q RPT in the current pressure unit This is followed by the current pressure unit rate The measured rate of pressure change for the active Q RPT in the current pressure unit per second Thi
196. t The display is 1 Indication that this is a range to be saved 2 Designator and position of the Q RPT used by th e to be saved iip i Save range A70M Hi 3 ias unit of measure of the range to be psi 4000g 4000a 4 Full scale pressure of the range to be saved in gauge mode and absolute mode if available 3 4 Page 47 2007 DH Instruments a Fluke Company RPM4 HPMS A70M A20M AF OPERATION AND MAINTENANCE MANUAL Press ENT to save the range or ESC to return to the MAIN RUN screen without saving the range s Default lt DF gt G RPT ranges cannot be saved They are permanent Duplicate AutoRange ranges cannot be saved A duplicate AutoRange range is a range that has the same measurement mode and full scale and uses the same Q RPT as a range that has already been saved 3412 DELETING AUTORANGE RANGES Q OPERATION To delete a single saved AutoRange range press SETUP lt 1range gt lt 2delete gt If there are any saved ranges available to delete the display is 1 Indication that the cursor control keys may be used to toggle through the saved ranges to 1 2 select the one to be deleted 2 Designator and position of the Q RPT used by the range to be deleted lt and gt 70 Hi 3 Pressure unit of measure of the range to be psi 4000g 4000a deleted t 4 Full scale pressure of the range to be deleted 3 4 in gauge mode and absolute mode if available Use the cursor control keys to
197. t each pressure increment s The calibration pressure standard is not reguired to apply precisely the nominal pressure value of each calibration point as long as the exact value of the applied pressure is known Best results are obtained if the actual applied pressure is within 5 of the recommended nominal point Table 20 Calibration point sequence for A20M and A70M Q RPTs CALIBRATION POINT POINT SEGMENT NO OF SPAN Atmospheric pressure 2 5 25 o 2 Ascending o 5 100 6 9595 o 9 Atmospheric pressure s A Q RPT that will NOT be used in absolute measurement mode after calibration may be calibrated in gauge measurement mode with a gauge pressure standard The Q RPT should then be used in gauge mode only see Sections 3 3 3 O PRINCIPLE 5 3 5 535 TURNING OFF ABSOLUTE MODE CAPABILITY FOR AQ RPT O PURPOSE To prevent operation in absolute measurement mode on a G RPT that has been calibrated for gauge mode only O PRINCIPLE RPM4 A70M A20M Q RPTs are frequently used in gauge measurement mode only see Section 3 3 3 PRINCIPLE Q RPTs that are used in gauge mode only may be calibrated in gauge mode with a reference that applies gauge pressures Calibration with an absolute reference is not necessary However if a Q RPT is calibrated in gauge mode it is not possible to know if it is in or out of tolerance in absolute modes To avoid using absolute mode with a Q RPT that is calib
198. t fitting is a DH500 F see Section 1 2 1 It is NOT a 1 8 in NPT F Never use a fitting other than the corresponding male fitting in these connectors Damage to the connectors and dangerous failure under pressure could result from using incorrect fittings DO NOT APPLY PRESSURE UNTIL YOU ARE FAMILIAR WITH OPERATION The RPM4 HPMS rear panel test port connects internally to both the RPM4 s 3 psi 20 MPa and 10 psi 70 MPa Q RPTs The valve on the front of the HPMS isolates the low pressure Q RPT when the high pressure Q RPT is in use Do not apply pressure to the RPM4 HPMS until you are familiar with its operation and know how to protect the low pressure Q RPT from overpressure see Section 3 2 5 FAILURE TO PROTECT THE LOW PRESSURE Q RPT FROM OVERPRESSURE MAY DESTROY IT DAMAGE DUE TO G RPT OVERPRESSURE 16 NOT COVERED BY THE PRODUCT WARRANTY 2461 THE ATMPORTS OF The ATM ports on the RPM4 Q RPT modules are connected to the RPM4 s internal barometer to assure that the RPM4 gauge pressure measurements are relative to ambient pressure These ports should always be left completely unobstructed and open to atmosphere A NEVER plug obstruct or connect a supply pressure to the RPM4 Q RPT module ATM ports This may adversely affect GAUGE mode operation and AutoZeroing functions 247 CHECK SET SECURITY LEVEL RPMA has security system based on user levels By default the security system is set to low which includ
199. t mode in which both Q RPTs of an RPM4 with two Q RPTs are used together and the indicated pressure is the average of their measurements SDS Self Defense A system to protect Q RPTs from overpressure made up of isolation and vent valves System and internal operating logic SDS is not used in RPM4 A70M A20M AF The difference between FS and the lowest point in a range For example the span of a 100 kPa FS range in negative gauge mode is nominally 200 kPa from 100 kPa to 100 kPa A limit expressed in units of pressure per second e g kPa second The stability limit is used Stability Limit as the Heady Not Ready criterion Ready if rate of change is less than stability limit Not Ready if rate of change is greater than stability limit The value from which deviations are measured in the Deviation DISPLAY function A user settable maximum pressure limit When pressure exceeds UL RPM4 beeps UL Upper Limit intermittently In negative gauge measurement mode there is also a user settable lower limit User Level Levels of security that can be set to protect certain RPM4 functions from being accessed QDUT On board automated test sequence that AutoRanges RPM4 based on characteristics of the Device Under Test DUT 2007 DH Instruments a Fluke Company Page 138
200. ta files that result from running a Sequence Q OPERATION s See Section 3 3 10 OPERATION for information on RUNNING a Quick or File AutoTest To access the AutoTest definition viewing and editing functions press SETUP lt 5ATest gt lt 2file gt Select lt 1view gt to view an AutoTest definition file Select lt 2edit gt to edit an AutoTest definition file P Edit File AutoTest When lt 2edit gt is selected the display is EE i Enter the number 1 40 of the File AutoTest to be edited s To create a File AutoTest definition file similar to an existing definition file without entering all the definition information edit an existing definition file and at the end of the editing process save it as a different file number Measurement mode The display is labsolute 2gauge The cursor is on the current selection Select the desired pressure measurement mode for the AutoTest see Section 3 3 3 1psi 2MPa 3kPa The display is 4bar The unit of measure selection screen is the current UNIT selection screen see Section 3 3 2 Select the desired pressure measurement unit for the AutoTest DUT full scale The display is 6000 psi g Filel Enter the full scale pressure of the DUT to be calibrated with this File AutoTest The value entered will be used along with the DUT tolerance to AutoRange RPM4 settings when the File AutoTest is run see Section 3 3 10 O PRINCIPLE DUT tolerance The disp
201. tatus Register 64 ESR or ESE n 32 128 64 32 16 8 4 2 1 MAV OUTPUT 16 QUEUE A ERROR ERROR N A Ready Event Status Register RSR or RSE eee 128 HI HI LO 8 HI HI HI 64 32 16 4 2 1 Figure 11 Status register schematic 6 1 N 8 4 2 RSR 1 The Status Byte Register can be read using the STB query or by performing a serial poll on the IEEE 488 bus If you read this using a serial poll then Bit 6 is the RQS If the STB query is used then bit 6 is the MSS bit All of the other bits are common to both types of query Each of these status bits can cause a SRQ to occur The Service Request Enable Register SRE program message determines which of these flags are able to assert the SRQ line This enable register has a matching set of bits that each will enable the designated bit to cause a SRO except for the RQS MSS bit s which cannot cause a SRO If you set this register to 20 14 hex an SRQ will occur if the MAV or the ERROR bit are set The description of these bits are given as OPER N A Bit 7 128 RQS Requested Service Bit 6 64 Indicates that the SRQ line of the IEEE 488 interface has been asserted by the RPM4 This bit is cleared when a serial poll is performed on the RPM4 and is a part of the Status Byte Register when read using a serial poll This bit does not apply if the COM1 port is being used
202. te details by email to cal repair dhinstruments com s The DHI flash software loading utility and RPM4 embedded software are available for download from www dhinstruments com in the SOFTWARE section 5 44 SUBASSEMBLY DESCRIPTION AND LOCATION 1 Micro card 3 Driver Board 6 HIG RPT module A70M 2 Power Supply Module 4 On Board Barometer 7 Display beneath Driver Board 5 Lo G RPT module A20M Figure 13 RPMA internal view 5441 MICRO BOARD The micro board supports a Motorola 68302 micro controller EPROM EEPROM 128k x 16 bit NVRAM 8 Mbit flash memory RS 232 and IEEE 488 2 communications keypad and display control An I O port controls other ports and devices in RPM4 2007 DH Instruments a Fluke Company Page 116 5 MAINTENANCE ADJUSTMENTS AND CALIBRATIONS 5442 POWER SUPPLY MODULE 12 V DC 2 2 1 Amps 5443 DRIVER BOARD The driver board is controlled by the mini micro board see Section 5 4 4 1 It supports e Frequency counters 2 for reading Q RPTs see Section 5 4 4 5 e On board barometer power and output see Section 5 4 4 4 e Power to the system cooling fan e Remote ENT e Keypad and display e Beeper 5444 ONBOARD BAROMETER The on board barometer supports a board mounted barometric range micromachined silicon sensor and an ambient temperature sensor The barometer readings are used for dynamic atmospheric pressure compensation when measuring gauge pressure with an absolute quartz r
203. the direct function keys Table 3 Summary of RPM4 function key operation DIRECT FUNCTION KEYS ARE ACTIVE FROM THE MAIN RUN SCREEN See corresponding manual Sections for full detail Adjust height of fluid head View active range and toggle correction Set to zero to defeat through available ranges ENT on correction a range activates it Select pressure unit of measure for the active range Choice of units available in this menu can be customized The SDS function is not used in the A70M A20M AF configuration of RPM4 Run the AutoZ function to Select the pressure measurement AutoZero the active Q RPT and mode for the active range absolute measurement mode or gauge Set up and optimize RPM4 Menu of less commonly used internal functions and settings features for a specific operating UN range and measurement mode Menu of commonly used setup features including save delete Run automated leak checking AutoRange ranges set display routine resolution set stability limit set upper lower set up File AutoTest sequences and view AutoTest data Start or set functions such as Leak Check AutoTest and Freeze ENTER values when editing Select the display function for the bottom line of the RPM4 display 3 3 DIRECT FUNCTION KEYS 3 3 1 RANGE PURPOSE To view and or change the active pressure measurement range and associated settings O PRINCIPLE An RPM4 range is defined as a pressure span and associated s
204. tion tasks especially calibration of analog pressure gauges see Section 3 3 10 3 2 5 HPMS HIGH PRESSURE MOUNTING SYSTEM The HPMS high pressure mounting system holds the RPM4 at a convenient viewing angle and includes a valve and visual indicators to isolate and protect the RPM4 s 2 000 psi A20M Q RPT when using the 10 000 psi A70M Q RPT See Figure 10 for an HPMS schematic O OPERATION Numerical references in this Section refer to Figure 9 In normal use the operator s only interaction with the HPMS is to operate the isolation valve knob to connect and disconnect the Lo Q RPT from the TEST port The valve s operation is prompted by the Valve Position LEDs 2 4 2007 DH Instruments a Fluke Company Page 20 3 OPERATION The Lo Q RPT isolation valve 3 isolates and protects the Lo Q RPT from the TEST port when it is closed knob fully CCW and opens the Lo Q RPT to the TEST port when it is open knob fully CW The Valve Position LEDs 2 4 indicate the position in which the valve knob should be set based on the current Q RPT selection on the RPM4 If the Hi Q RPT is selected the LO Q RPT SHUT OFF LED 2 is lit indicating that the valve knob should be turned fully CW to close the valve protecting the Lo Q RPT from high pressure If the Lo Q RPT is selected the LO Q RPT ACTIVE LED 4 is lit indicating that the valve knob should be turned fully CCW to open the valve connecting the Lo Q RPT to the test pressure
205. tly to Section 2 5 to set up your RPM4 HPMS and then go to Section 2 4 for power up and verification This will get you up and running quickly with a minimal risk of causing damage to yourself or your new instrument THEN when you have questions or start to wonder about all the great features you might be missing get into the manual s RPM4 HPMS A7OM A20M AF is usually delivered as part of an PGC 10000 AF system which includes a PGC1 10000 AF pneumatic pressure controller and a GB 152 AF gas booster The 1 and the GB 152 have their own Operation and Maintenance Manuals Manual Conventions A CAUTION is used in throughout the manual to identify user warnings and cautions NOTE is used throughout the manual to identify operating and applications advice and additional explanations indicates direct function keys e g RANGE lt gt indicates screen displays e g lt 1 yes gt Page VII 2007 DH Instruments a Fluke Company RPM4 HPMS A70M A20M AF OPERATION AND MAINTENANCE MANUAL NOTES 2007 DH Instruments a Fluke Company Page VIII 1 INTRODUCTION DH Instruments A Fluke Company 1 INTRODUCTION LI PRODUCT OVERVIEW RPM4 HPMS A70M A20M AF is the combination of an RPM4 A70M A20M AF reference pressure monitor and an HPMS High Pressure Mounting System RPM4 A70M A20M AF is a stand alone microprocessor driven reference pressure monitor intended to accurately measure gas pre
206. toggle through the ranges available to be deleted When the desired range to be deleted is displayed press ENT If you are sure you want to delete this range press ENT again in response to the lt Delete gt query ESC returns to the lt AutoRange gt screen without deleting a range To delete all of the saved AutoRange ranges press SETUP lt 1range gt lt 3delete all gt If you are sure you want to delete all the ranges respond lt 1yes gt to the lt Delete all saved ranges gt query If not respond lt 2no gt 3 4 2 lt 2 gt RESOLUTION O PURPOSE To set the resolution with which measured pressures and other pressure indications and settings are displayed O PRINCIPLE The resolution with which RPM4 displays pressure values can be adjusted This feature can be used to reduce the resolution when lower precision measurements are being made and excess resolution might confuse or distract the operator The resolution setting determines the number of digits with which pressure is displayed The resolution is calculated based on the span of the range and then rounded to the furthest digit to the right For example resolution of 0 001 96 on a range of 1 500 psi is 1 500 X 0 001 96 0 015 which is rounded down to 0 01 psi s Default resolution is 10 ppm of active range span Resolution is set automatically by AutoRange see Section 3 3 4 and by AutoTest initialization see Section 3 3 10 2007 DH Instruments
207. transducers that are the source of low pressure measurement uncertainty for the system To adjust a Q RPT pressures from a reference standard are applied to the Q RPT at ascending and descending pressure increments over the range The pressure defined by the standard and the corresponding Q RPT readings are recorded at each point After all of the pressures have been applied and recorded adjustments are made to fit the Q RPT pressure readings to the standard Fitting the readings means performing a least squares linear regression to arrive at the lowest value of the residuals of errors of the Q RPT relative to the standard The Q RPT output is adjusted by user settable coefficients PA an adder or offset and PM a multiplier or span set see Section 5 3 1 1 The calibration process is performed independently on each Q RPT to arrive at its optimal fit RPMA is delivered with an interactive Q RPT calibration utility CalTool for RPTs that steps the operator through the complete Q RPT calibration procedure including applying the necessary pressures collecting data automatically calculating new PA and PM values previewing the results of the new calibration and activating the results of the new calibration see the CalTool for Q RPTs manual on the RPM4 A70M A20M AF Support Disk RPM4 also provides complete front panel and remote access to Q RPT calibration parameters so that Q RPT calibrations can be performed without using CalTool softwa
208. ts be liable to purchaser for any unforeseeable or indirect damage it being expressly stated that for the purpose of this warranty such indirect damage includes but is not limited to loss of production profits revenue or goodwill even if DH Instruments has been advised of the possibility thereof and regardless of whether such products are used individually or as components in other products Items returned to under warranty claim but determined to not have a defect covered under warranty or to not have a defect at all are subject to an evaluation and shipping charge as well as applicable repair and or calibration costs The provisions of this warranty and limitation may not be modified in any respect except in writing signed by a duly authorized officer of DH Instruments The above warranty and the obligations and liability of DH Instruments and its Authorized Service Providers exclude any other warranties or liabilities of any kind Table 30 DHI Authorized Service Providers DH INSTRUMENTS A FLUKE COMPANY AUTHORIZED SERVICE PROVIDERS TELEPHONE NORMAL SUPPORT COMPANY DH Instruments a Fluke Company ADDRESS 4765 East Beautiful Lane Phoenix AZ 85044 5318 USA FAX amp EMAIL Tel 602 431 9100 Fax 602 431 9559 cal repair dhinstruments com REGION Worldwide Minerva Meettechniek B V Chrysantstraat 1 3812 WX Amersfoort the NETHERLANDS Tel 31 33 46 22 000 Fax 31 33 46 22 218 info minerv
209. uffix n but this is not recommended for new applications Example Cmd sent PCAL2 2 1 1 000021 20011201 enhanced Query reply 2 10 Pa 1 000021 20011201 reply if GPIB 488 Example sent PCAL 2 1 1 000021 20011201 enhanced Query reply 2 10 Pa 1 000021 20011201 Example Cmd sent PCAL HI 2 1 1 000021 20011201 style is OK enhanced Query reply 2 10 Pa 1 000021 20011201 Example Sent PCAL1 2 1 1 000021 20011201 classic Reply 2 10 Pa 1 000021 20011201 Errors ERR 6 One of the arguments is out of range ERR 10 The suffix is invalid See Also 5 3 PRn Purpose Read the next available pressure measurement Query PRn Classic PRm Optional Suffix n The active Q RPT is assumed if no suffix is given 47 Specify the Hi Q RPT 2 Specify the Lo Q RPT Remarks The next available pressure value for the specified or active Q RPT is read in the current pressure units The data returned also contains Ready Not Ready information and the pressure unit of measure and measurement mode The reply field is always 20 characters long The first 3 characters of the reply are reserved for the ready status The ready status is described in the SR program message The pressure value and pressure unit of measure are right justified in this field After receiving this program message the RPM4 replies back with the data after a new pressure mea
210. uffix is given 47 Specify the Hi Q RPT 2 Specify the Lo Q RPT Arguments Limit The stability limit in the current pressure unit of measure Remarks The stability limit can be read and set as a pressure The stability limit is used as the Ready Not Ready criteria Example Cmd sent SS 4 enhanced Query reply 0 10 kPa s No reply from GPIB 488 Example sent SS 1 enhanced Query reply 0 10 kPa s Example Sent SS 1 classic Reply 0 10 kPa s Errors ERR 6 The argument was invalid ERR 10 Invalid or missing command suffix See Also 55 3 4 3 TIME Purpose Read or set the RPM4 internal clock Command TIME hh mmXxX Query TIME Classic TIME hh mmxx TIME Arguments hh mm The time in a 12 hour format using a colon delimiter XX am or pm Example sent TIME 12 52PM enhanced Query reply 12 52pm No reply if GPIB 488 Example sent TIME 12 52PM enhanced Query reply 12 52pm Example Sent TIME 12 52PM classic Reply 12 52pm Errors ERR 7 Missing or improper program message argument s See Also DATE 3 5 5 3 UCOEFn Purpose To identify the coefficient used to convert 1 Pascal to the current pressure unit of measure Query UCOEFn Classic UCOEFn Optional Suffix The active Q RPT is assumed if no suffix is given
211. ure unit selected is inWa inches of water the reference temperature for water density must we specified in a separate menu choices are 4 C 20 GO F No reference temperature selection is necessary for the unit mmWa as the only reference temperature commonly used for mmWa is 4 C s The choice of up to six units available under the UNIT function can be customized from a wider selection by the user see Section 3 5 6 The units available under the UNIT function can be reset to default by reset see Section 3 5 9 2 2007 DH Instruments a Fluke Company Page 26 3 OPERATION 3 3 3 MODE O PURPOSE To setthe measurement mode absolute gauge for the active range s To select the unit of measure use UNIT see Section 3 3 2 O PRINCIPLE RPM4 A70M A20M AF supports simple one step switching between two measurement modes Absolute Measures pressure relative to vacuum zero is hard vacuum Range is from zero absolute to full scale Gauge Measures pressure relative to atmosphere zero is ambient pressure Range is from zero gauge to full scale full scale must be greater than zero The RPM4 A70M A20M AF Q RPTs measure pressure relative to a sealed vacuum reference and are intrinsically absolute Gauge mode is accomplished by offsetting of atmospheric pressure with dynamic compensation for atmospheric pressure changes between offsets using an on board barometer see Section 3 2 2 Access to absolute operation can be
212. y RPM4 HPMS A70M A20M AF OPERATION AND MAINTENANCE MANUAL AUTOZEROn Purpose Read or set the status of the AutoZ function Command AUTOZEROn state Query AUTOZEROn Classic AUTOZEROn state AUTOZEROn Default AUTOZERO1 Optional Suffix n The active Q RPT is assumed if no suffix is given 47 Specify the Hi Q RPT 2 Specify the Lo Q RPT Arguments state Autozero OFF 1 Autozero ON Remarks The RPMA AutoZ function can be turned ON and OFF There is a separate AutoZ flag for the gauge absolute and differential measurement modes for each Q RPT This command sets the AutoZ status for the current mode of the specified or the active Q RPT only To set the sate of AutoZ for a measurement mode you must be in that mode Example sent AUTOZERO 0 enhanced Query reply 0 No reply if GPIB 488 Example Sent AUTOZERO 0 classic Query reply AUTOZERO 0 Errors ERR 7 The argument was other than 0 or 1 ERR 10 The suffix is invalid See Also ZOFFSET MMODE 3 5 1 AUTOZEROn RUN Purpose Run the AutoZero routine Command AUTOZEROn RUN Pref Query AUTOZEROn RUN Pref Classic AUTOZEROn RUN Pref Optional Suffix The active Q RPT is assumed if no suffix is given 47 Specify the Hi Q RPT 2 Specify the Lo Q RPT Argu
213. y reply 9600 N 8 1 No reply if GPIB 488 Example sent COM1 9600 N 8 1 enhanced Query reply 9600 N 8 1 Example Sent COM1 9600 N 8 1 classic Reply 9600 N 8 1 Errors ERR 7 Missing or improper program message argument s See Also COM2 3 5 2 1 COM2 Purpose Read or set the RS232 settings for the COM2 port Command 2 baud parity data stop Query COM2 Classic COM2 baud parity data stop COM2 Arguments baud The baud rate This may be 300 600 1200 2400 4800 9600 or 19200 parity The data parity This may be O for odd E for even or N for none Data The number of data bits This may be 7 or 8 stop The number of stop bits This may be 1 or 2 Defaults COM2 2400 E 7 1 Remarks is generally used to allow the host computer to communicate through the RPM4 to an additional device connected to COM2 This can be useful if the host computer does not have 2 serial ports available Example sent COM2 9600 N 8 1 enhanced Query reply 9600 8 1 No reply if GPIB 488 Example sent COM2 9600 N 8 1 enhanced Query reply 9600 N 8 1 Example Sent COM2 9600 N 8 1 classic Reply 9600 N 8 1 Errors ERR 7 Missing or improper program message argument s See Also COM1 3 5 2 1 Page 83 2007 DH Instruments a Flu
214. ys in the YYYYMMDD format Example sent DATE 200301 15 enhanced Query reply 20030105 No reply if GPIB 488 Example sent DATE 20030105 enhanced Query reply 20030105 Example Sent DATE 20021201 classic Reply 20021201 Errors ERR 6 Missing or improper program message argument s See Also TIME 3 5 5 3 ERR Purpose Read the new available error message from the Error Queue Query ERR Classic ERR Remarks This program message obtains additional details about an error that has occurred If the user receives an ERR reply or the enhanced mode is enabled using the IEEE 488 interface and an error has been detected the error is put into a FIFO Error Queue The ERR program message pulls and replies the oldest error message available In classic mode only the most recent error can reside in the queue is replied if there no error messages left If an error occurs in enhanced mode using the IEEE 488 interface no reply is generated even if the command was a query Example Query sent ERR enhanced Query reply Numeric argument missing or out of range Example Sent ERR classic Reply Numeric argument missing or out of range See Also 4 4 2 2007 DH Instruments a Fluke Company Page 84 4 REMOTE OPERATION

Fluke A20M-AF Computer Monitor User Manual

Contents

Download Pdf Manuals

Related Search

Related Contents