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i DPI 605 User Manual - Test Equipment Depot

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1. Provides facility to offset the displayed pressure reading by either the currently displayed pressure or a manually entered pressure value This function can be enabled or disabled by the On F3 or Off F4 function keys A T symbol is displayed when the Tare function is enabled Enables display of maximum and minimum pressure levels obtained during operation The function is enabled or disabled by the F3 and F4 keys respectively The currently indicated levels are reset by the F1 key The Tare function if enabled is active for all functions on the display the Tare value therefore being subtracted from both the minimum and maximum readings as well as the pressure reading This function is operative for reading in either pressure units or F S Converts the indicated pressure reading to a percentage of full scale FS reading over a user defined zero to full scale range Provides a low pass filter function to stabilise the display if the instrument is connected to a noisy fluctuating pressure line This function can be enabled or disabled by the F1 and F2 function keys A low pass filter symbol is displayed when this function is enabled K136 Issue No 2 o 3 12 3 8 3 9 o Flow Pressure o Pres Vac Pressure e Volts Electrical Input DPI 605 User Manual Pressure Key Functions Contd Converts the indicated pressure reading
2. Figure 5 17 Current to Pressure Current Sourcing K136 Issue No 2 5 Applications At 200 OOO IF D ooo ELECT gt Ss SE TEMP PRESSURE SOURCE Figure 5 18 Data Logger External Trigger TO UNIT SYSTEM UNDER TEST K136 Issue No 2 E Eco 5 12 DPI 605 User Manual K136 Issue No 2 6 Calibration 6 1 6 CALIBRATION The DPI 605 instrument is supplied calibrated together with its own individual calibration certificates During the normal course of operation the instrument does not need to be calibrated and so the built in calibration routines are protected by a programmable identification number P I N e Selection of Calibration Routines The calibration routines are entered via an option of the SET UP facility Cal Test F4 To select the calibration mode proceed as follows o Switch the instrument ON o Press the SET UP key o Select Cal Test F4 from the SET UP menu The instrument will now prompt for the entry of a PIN number A typical prompt is shown below NOTE If there is a long delay between the request prompt and entry of the PIN number the display will time out and Set up will then need to be re selected Cal Test Enter pin Number Enter the correct P I N number and press ENT Initially the instrument is supplied with P I N number 123 installed At the Enter Pin Nu
3. K136 Issue No 2 4 8 DPI 605 User Manual 4 5 1 First Time Operation Contd e Auto Off The functions available in this category of the Defaults menu allow the auto off features of the instrument to be Set up There are two options available Power and Light o Power Switch the instrument to ON e Defaults o Battery a Press the SET UP key o Status oi Select Defaults F1 from the Set up menu o Units S Ge Select Auto off from the Defaults menu Note that More Auto off is on the second level of the Defaults menu and is obtained by pressing the More key F4 on the first Ae level menu o Contrast m Auto Off a More Select Power F1 Enter the required time out period in i Dewi minutes on the numeric keyboard followed by ENT A Light Enable the Power off function by pressing the Enable key F3 Conversely disable the function by pressing the Disable key F4 o Light Switch the instrument to ON ren a Press the SET UP key o Battery o Status o Cal Test Select Defaults F1 from the Set up menu oe Select Auto off from the Defaults menu Note that a Clock Auto off is on the second level of the Defaults menu and is m iore obtained by pressing the More key F4 on the first level o Printer menu o Contrast meon Select Light F2 Enter the required time out period in EE seconds on the numeric keyboard followed by ENT A Power En Enable the Light off function by pressing the
4. Enable key F3 Conversely disable the function by pressing the Disable key F4 K136 Issue No 2 4 Operation 4 9 4 5 2 Set up Units e Pressure Instruments delivered to the UK are supplied with their pressure scales programmed to specific function keys as follows bar F1 psi F2 MH20 F3 and kPa F4 Instruments supplied to the U S are programmed to give psi F1 inHg F2 inH20 F3 and kPa F4 Instruments supplied to Japan are programmed to give kg cm2 F1 mH20 F2 mmHg F3 and mbar F4 To change any default settings proceed as follows o Switch the instrument to ON e Defaults o Battery o Press the SET UP key o Status o Cal Test ni o Select Defaults F1 from the Set up menu Comms Clock More ooogs o Select Units F1 from the Defaults menu R See ae o Select Pressure F1 from Defaults Units Selection menu A Temp Operation of this key displays full range of units available together with an indication of the units to which each function key is currently assigned torr atm psi F2 Ib ft2 inHg inH2O inH204 The default setting for any key is changed by pressing the required function key This will cause it to scroll through the menu missing out units assigned to the other function keys The key is assigned the unit beside which it is displayed Assigning three function keys to Blank provides the facility of setting up the instrument for single pres
5. K136 Issue No 2 5 Applications 5 5 DISPLAY Figure 5 7 A SS O00 000 OOO 000 ze 000 PRESSURE NORMAL OPEN CLOSED 0 ET re Ki Figure 5 6 Pressure Switch Test EXTERNAL POWER SOURCE Current Loop Display Test current sinking K136 Issue No 2 fo 5 6 DPI 605 User Manual l B OC GO DISPLAY O95 C Bel 000 gt coleen o o o Figure 5 8 Current Loop Display Test current sourcing Tua N f ooo A Seo eg CUS 858 Sees eels OC ELECT o5 65 laaa TEMP PRESSURE OUTPUT TO UNIT UNDER TEST Figure 5 9 Data Logger external trigger K136 Issue No 2 5 Applications 5 7 EXCITATION 24 V MAX ese EXT PRESSURE INPUT DEVICE UNDER TEST Figure 5 10 Pressure to Voltage Transducer Calibration Indicator DPI 605 EXTERNAL TRANSDUCER RANGE EXTEND Druck ZZ Ze B G05 lt c me ICC oD CET Ses EXT PDCR SS san Spies EXTERNAL PRESSURE TO PROVIDE ALTERNATIVE PRESSURE RANGE e By EXCITATION 24 V MAX DEVICE UNDER TEST lw Figure 5 11 Pressure to Voltage Transd
6. Voltage ICURRent CPRESsure RESolution H RANGe gt DE o y L_GMODE gt Pitter Power RECall Timeout CINE GSTATe gt CSTATe gt ten o core 2 L ERRor GFKPunits D STIME VERSION OPERation CEVEND CONDition L_GENABIe gt QUEStionable EVEND CONDition GENABIe PRESet _CCPRESsure gt _CSFAGitor GrEMPerature D Test Equipment Depot 800 517 8431 99 Washington Street Melrose MA 02176 FAX 781 665 0780 TestEquipmentDepot com K136 Issue No 2 B SCPI Communications Protocol B 9 COMMAND DEFINITIONS There are over 150 commands in the command tree many of which are self explanatory indeed one of the benefits of SCPI is that the actual command words do convey some meaning The following description describes the more important and useful commands This should be the starting point for the newcomer to using the SCPI protocol It does not detail every commandor every facet of each command Together withthe Command Tree however it should provide all the information required to perform most common operations such as selecting measurement ranges and taking readings etc All commands follow the syntax
7. K136 Issue No 2 4 4 DPI 605 User Manual o Only use the charger supplied with the instrument to recharge the battery o If practical run the battery until the instrument provides a Low Battery warning and then fully charge the battery Avoid partial charge discharge cycles if possible o DO NOT attempt to open the battery case Alkaline cells if fitted are isolated from the instrument s battery charger No type of discharged primary cell should be left in the instrument 4 5 Instrument Set up The instrument is supplied calibrated A number of other parameters are also factory set as follows e Time Set to U K local time e Date Set to current date e Contrast 50 e Display Light Set to switch off after 5 sec e Auto Off Disabled e Display Rounding Resolution Set to maximum e Initial Pin Number Set as 123 e OnState Set to restore last Set up ON e Keyboard All functions enabled K136 Issue No 2 4 Operation 4 5 4 5 1 First Time Operation e Set P I N Access to the DPI 605 calibration utilities are password protected a factory set password 123 is entered into every instrument delivered To set a new P I N number proceed as follows SET UP Ban o Press the SET UP key o o o Status en o Select Cal Test F4 from the Set up menu The o cal instrument will now prompt for entry of the current a password as follows m New Pin o Keyboard o Switch the instrume
8. Enter File ID Alpha T Alpha J gt This File number can be either alphabetical numerical or a combination of both Alpha characters are entered by means of the Alpha T F1 Alpha 4 F2 e F3 and gt F4 keys Alpha F1 scrolls forwards through the alphabet and Alpha F2 backwards Shifting right to the next character position or left to a previous character position is achieved by the F4 and e F3 keys respectively K136 Issue No 2 4 Operation 4 35 Numeric entries are added directly from the numeric key pad The full alpha numeric text is added to the file by pressing the ENT key located on the numeric key pad o Following entry of the file number the instrument prompts for the selection of a trigger mode as follows e g Select trigger for Data Logging Periodic DATA LOG Record Replay Directory Delete o00 Og Quit gt A Event Continue Periodic Ki Stop Time Samples Ki Event m Periodic Mode The Periodic trigger mode F1 is basically an internally generated trigger mode which permits the Data Logger to be controlled either by programmable times or by the number of samples taken The frequency of sampling in seconds is first of all defined followed by arequired Stop condition The Stop condition can be either a programmable future time or after a programmable number of samples If Samples F2 are selected as the Stop condition the
9. K136 Issue No 2 4 56 DPI 605 User Manual o Transmit the test file to the DPI 605 instrument NOTE The instrument should not be in the Data Log or AutoCal mode when the data transmission is carried out When a file has been successfully transferred the File ID is displayed on the display dialogue line and the file is then available for selection from the AutoCal Tests directory To carry out a specific AutoCal test proceed as follows o Select AUTOCAL o Select Test F1 option from the AutoCal menu o Select Auto F2 Selection of Auto displays a Test Menu onthe screen e g AutoCal Tests Free Blocks 9000 AY 36224 SN 135672 AY 36225 SN 166224B AZ 37777 SN 19227A AP 36972 SN 16276B Page Up Page Down o Select the required test file by means of the Page Up F1 Page Down F2 T F3 and 4 F4 keys and press ENT o Followthe instructions given on the display setting up pressures and logging results as requested To replay AutoCal log files refer to Section 4 15 3 K136 Issue No 2 4 Operation 4 57 4 17 Use of the RS 232 Port The instrument is provided with an RS 232 port for the transfer of data to and from the instrument The RS 232 port is completely floating with respect to the instruments electronics therefore no earth loop problems should be encountered Inthe event of any data communication problems being encountered press the Exit Menu key to abort the current oper
10. e Calibration of Pressure to voltage devices Pressure to current devices Current loop 4 20 mA pressure display systems Voltage to pressure transducers Current to pressure transducers Pressure to pressure transducers Pressure to logic switch tests Analogue pressure gauges o O0 0 0 0 OO 0 e Direct temperature measurement optional probe o Temperature range 55 C to 200 C e Voltage and current measurement o Voltage zero to 50 V d c o Current zero to 55 mA d c Section 5 Applications gives details of instrument connections for typical applications K136 Issue No 2 1 4 DPI 605 User Manual 1 3 Instrument Specification Pressure Measurement Specification Operating Pressure Range 1 to 20 bar gauge 0 to 21 bar absolute with optional Barometric Reference Sensor Maximum Safe Working Pressure Calibrator 25 bar causing negligible calibration change Indicator To 1 25 x full scale causing negligible calibration change Pressure Media Calibrator Compatible with most common non corrosive gases Indicator In accordance with transducer specification Response 2 readings per second nominal Non Linearity Hysteresis and Repeatability Positive Pressure 0 025 of reading between 200 mbar and 20 bar 0 05 mbar below 200 mbar Negative Pressure 0 025 of reading between 1 bar to 200 mbar 0 05 mbar between 0 and 200 mbar Both Positive and Negative Pressure accuracies
11. All electrical processing e g Tare is cancelled if a new measurand for the electrical display window is selected e mA Electrical Input Selects milli ammeter to be displayed in the electrical window of the display Current input signals are applied between the I and COM terminals The current range is 55mA maximum The maximum range value is displayed on the instrument when this mode is selected All electrical processing e g Tare is cancelled if a new measurand for the electrical display window is selected e Temp Electrical Input Used in conjunction with either an external optional PT 100 or PT25 platinum resistance probe to read temperature Units of temperature are selectable F or C under the SET UP Default Units facility refer to Section 3 11 3 Page 3 21 The display echoes the type of Temperature Probe currently selected Selection of Temperature Probe type is carried out under the Temp Probe option Section 3 11 3 Page 3 25 All electrical processing e g Tare is cancelled if a new measurand for the electrical display window is selected e Process Electrical Input o Tare Electrical Input The electrical process key provides access to the following functions for all three Voltage Current and Temperature measurands Provides the facility to offset the displayed parameter either by the currently displayed value Reading or a manua
12. To connect atemperature probe plug the probe connector into the socket labelled Temp Probe located on the right hand side connector panel Drive Drive Figure 2 11 Temperature Probe Connections K136 Issue No 2 2 18 DPI 605 User Manual K136 Issue No 2 3 Familiarisation 3 1 3 FAMILIARISATION This chapter is designed to familiarise the first time user with the controls of the instrument An overview of the functions of the display and controls is given in this section For the experienced operator the operating procedures are described in Section 4 3 1 Equipment Controls Indicators and Connectors Views of the instrument detailing the display and controls are shown in Fig 3 1 These fall into three groups e Pressure source e Input output connectors e Keyboard controls and display The keyboard and display panel layout is shown below Precision Pressure Indicator Calibrator Int FS 20 0000 bar Ammeter FS 55mA 1523216 amp 70001 Fi F2 Ext F3 F4 Tc SCREEN ENT Menu EN ENT PRINT S Na A u nn SWITCH Auto LEAK TEST TEST CAL f DATA PRES VAC ZERO Log STORE RECALL NETAN DA x gt Electrical Input Pressure 4 f A x RANGE UNITS VOLTS mA E LIMITS Process di TEMP PROCESS K136 Issue No 2 IR 3 2 DPI 605 User Manual a 5 De
13. time_val NUMERIC_REAL SINGLE 1 0000 9999 00 5 00 5 00 timeout_stat BOOLEAN SINGLE Default ON tsl_fail_str STRING SINGLE tsl_fullscale NUMERIC_REAL SINGLE 1 00e 011 1 00e 011 0 00 0 00 tsl_name STRING SINGLE tsl_pass_str STRING SINGLE tsl_type ENUMERIC SINGLE PUNit RDG FS EUNit Default PUNit upper_electrical NUMERIC_REAL SINGLE 1 00e 011 1 00e 011 0 00 0 00 upper_pressure NUMERIC_REAL SINGLE 1 00e 011 1 00e 011 0 00 0 00 K136 Issue No 2 Wie B 42 DPI 605 User Manual voltage_op_state ENUMERIC SINGLE ELECtrical ON PRESsure OFF Default OFF voltage_value NUMERIC_REAL SINGLE 1 00e 011 1 00e 011 0 00 0 00 wait_hrs NUMERIC_REAL SINGLE 0 00 99 00 0 00 0 00 wait_mins NUMERIC_REAL SINGLE 0 00 i 5 00 5 00 wait_secs NUMERIC_REAL SINGLE 0 00 59 00 0 00 0 00 NUMERIC_INT SINGLE 2999 1992 1992 Test Equipment Depot 800 517 8431 99 Washington Street Melrose MA 02176 FAX 781 665 0780 TestEquipmentDepot com K136 Issue No 2
14. AA Figure 2 8 Voltage and Current Measurement Connections K136 Issue No 2 2 16 DPI 605 User Manual 2 1 9 Electrical Input Output Connections Connections tothe Switch Test Data Log trigger and programmable outputfacilities of the instrument are made via the connector panel located on the left hand side of the instrument Connections to the instrument are made by means of the supplied test leads 4mm plugs CAUTION IF NOT MAKING USE OF THE TEST LEADS PROVIDED USE LEAD TERMINATED WITH 4 MM SOCKETS FOR PLUGGING INTO THE INSTRUMENT DO NOT PUSH BARE WIRES INTO THE SOCKETS SE Figure 2 9 shows the connector panel and the connections for Switch Test and Data Log Trigger inputs Figure 2 10 shows the connections for the both the current and voltage outputs SWITCH TEST e DATA LOG 1 TRIGGER Figure 2 9 Switch Test Data Log Trigger and Programmable Output Connections K136 Issue No 2 2 Installation 2 17 2 1 10 CURRENT VOLTAGE OUTPUTS Figure 2 10 Current Voltage Output Connections Temperature Probe Connections The DPI 605 supports two types of Platinum Resistance Temperature Probes a PT100 for temperature ranges 55 to 200 C and PT 25 for temperature ranges 55 to 850 C Temperature probes supplied with the equipment are terminated with an appropriate connector The pin out connections of the Temperature Probe are given in Figure 2 11
15. EE 6 10 DPI 605 User Manual 6 3 3 Temperature Compensation To carry out atemperature compensation run on an external transducer proceed as follows o Select TC from the External Pressure Transducer Cal menu o Connect the external pressure transducer to an external pressure source and place transducer in a temperature controlled environment o Allow transducer environmental temperature to stabilise at e g 10 C o In response to the prompt e g Temperature 1 D Enter the current temperature e g 10 C and press ENT Press Accept to enter the indicated value into memory o Inresponse to the Enter Zero Pressure 1 prompt enter the zero pressure and press the Accept F1 key o Apply the full scale pressure to the transducer and in response to the Enter FS Pressure prompt enter the full scale pressure and press the Accept F1 key o Repeat the application of zero pressure and full scale pressure for each of the operating temperatures throughout the range of the transducer i e 5 C 23 C and 40 C A minimum of four operating temperatures must be selected On completion of calibration press Cal Done If less than four temperature points are entered an error message will be displayed e g At least 4 points needed K136 Issue No 2 6 Calibration 6 11 6 3 4 External Transducer Parameter Entry If the parameters of an external transducer are not entered in the External Transducer directo
16. K136 Issue No 2 4 12 DPI 605 User Manual 4 5 3 Set up Data Communications Contd SET UP Defaults Battery Status Cal Test 000 Units Comms Clock More Doan Parity Handshake Scpi Dbbb gt Baudrate Baud rate This option allows the baud rate to be set up via the Previous F1 and Next F2 keys The current setting is indicated by an arrow A typical Baud rate display is shown below Select baud rate 110 600 4800 150 1200 9600 300 2400 19 2K Previous Next After setting up the required baud rate press Exit Menu to return to the Comms sub menu Repeat Exit Menu operations until the Set up option clears SET UP Defaults Battery Status Cal Test 000 Units Comms Clock More oomoo Baudrate Parity Handshake Scpi gt A Ae SET UP Defaults Battery Status Cal Test oo00 Units Comms Clock More oomoo Baudrate Parity Handshake Scpi bb b Parity This option allows the RS 232 parity checking mode to be set up Three options are available Odd F1 Even F2 and None F3 Handshake Selection of this option allows the RS 232 handshaking mode to be set up Four options are available None F1 Software F2 Hardware F3 and Both F4 Scpi Selection of this option allows the local echo of the Scpi commands to be either switched on or off Two options are available Echo on F1 or Echo off
17. SOURce PRESsure PV source_pv_qry STATus OPERation CONDition SS_status_opr_cond_qry STATus OPERation ENABle SS_status_opr_enable_cmd StatOperEnab NUMERIC_INT SINGLE STATus OPERation ENABle SS_status_opr_enable_qry STATus OPERation EVENt SS_status_opr_event_qry STATus PRESet SS_status_preset_cmd STATus QUEStionable CONDition SS_status_quest_cond_qry STATus QUEStionable ENABle SS_status_quest_enable_cmd StatQuesEnab NUMERIC_INT SINGLE STATus QUEStionable ENABle SS_status_quest_enable_qry STATus QUEStionable EVENt SS_status_quest_event_qry K136 Issue No 2 E Ho B 32 DPI 605 User Manual SYSTem DATE date cmd Set or obtain date year NUMERIC_ INT SINGLE month NUMERIC_INT SINGLE day NUMERIC_INT SINGLE SYSTem DATE date_qry Set or obtain date SYSTem ERRor SS_system_error_qry SYSTem FKPunits fnkeyunits_cmd Set or read pressure units assigned to units function keys fnkey ENUMERIC SINGLE fkunits SUFFIX_DATA SINGLE SYSTem FKPunits fnkeyunits_qry Set or read pressure units assigned to units function keys SYSTem POWer RECall recall_state_cmd recall_stat BOOLEAN SINGLE SYSTem POWer RECall recall_state_qry SYSTem POWer TIMeout TIME powertime_value_ cmd powertime_val NUMERIC_REAL SINGLE SYSTem POWer TIMeout TIME powertime_value_qry SYSTem POWer TIMeout STATe powerdown_state_cmd powerdown_stat BOOLEAN SINGLE SYSTem POWer
18. TestEquipmentDepot com K136 Issue No 2 A AutoCal A 5 e Header Block The data in this block mainly details the device to be tested The information is displayed on the instrument for the operator to confirm No commands are containedin the Header Block The instrumentidentifies each field inthe Header Block by field identifiers this means thatthe fields may be in any order and some or even all may be omitted Recognised field identifiers are listed below N meaning notes may be up to 40 alpha numeric characters T meaning device type G Gauge g or gauge meaning gauge A Abs a or abs meaning absolute D Diff d or diff meaning differential FS meaning full scale pressure up to 17 alpha numeric characters NO meaning nominal output up to 15 alpha numeric characters MP meaning maximum pressure up to 14 alpha numeric characters FD meaning file creation date up to 15 alpha numeric characters FT meaning file creation time up to 14 alpha numeric characters e Setup Block The data in this block is used to set up the instrument in the way required The data takes the form of a series of individual SCPI commands for the instrument thereby facilitating the selection of pressure units and electrical range etc This block is therefore of variable length and content but will include commands to select the following Pressure units Pressure processing RHS Measurand V mA C Electrical processing Electri
19. o Analogue Output This option is used to select the source measurand for the analogue output either Pressure or Electrical Pressure Selection of the pressure option provides three system facilities Set up On and Off Set up is used to specify the required linear relationship between the measurand Pressure and the selected type of analogue output Voltage or Current m Set up When the Set up key is pressed a promptis displayed for entry of a lower point e g lower point 0 00000 bar 0 0000V Enter the desired measurand lower point and press ENT and then the required corresponding lower output level and press ENT again Accept the entered parameters by pressing the Accept key anda prompt will be given for an Upper point e g upper point 15 00000 bar 20 0000V Enter the desired measurand upper point and press ENT followed by the corresponding upper output level and press ENT again K136 Issue No 2 3 Familiarisation 3 17 p Having set the required relationship press the Exit Menu key to return to the Set up menu The On F3 and Off F4 keys are used to enable or disable the output as follows a On Switches the electrical output ON The electrical window of the display now divides into two sub sections to give the currently selected DMM display inthe upper section and the electrical output conversion status e g Pressure to Voltage in the lower section It should be noted that when the
20. Displays Gain Offset of TSL Results F4 key displays worst case deviation from the TSL and PASS or FAIL The results of TSL calculation i e worst case deviation offset and gradient of Terminal Straight Line TSL together with the specified permissible deviation are presented in print out of results upload of results and SCPI upload of results ABS arg1 arg2 arg3 arg4 arg5 arg6 arg7 arg8 This command has eight mandatary arguments o The first argument represents the zero point pressure of the transducer under test o The second argument represents the zero point of the instrument s electrical output o The third argument represents the full scale point pressure of the transducer under test o The fourth argument represents thefull scale point of the instrument s electrical output o The fifth argument is a number representing the specified allowable deviatiion from the Absolute Straight Line K136 Issue No 2 i gt A 14 DPI 605 User Manual o The sixth specifies the units of the fifth argument PUNIT To represent selected pressure unit as specified in the Setup Block EUNIT To represent selected electrical unit RDG To represent percent of reading FS To represent percent of full scale o Theseventh argument is a string of up to 40 characters which can be displayed when the ABS calculation is completed by the instrument and the specified deviation has been met o The eighth argument
21. Enter ambient temperature 21 Leaktest Results End Pressure 0 0004 psi Start Pressure 0 0003 psi Pressure Drop 0 0001 psi Leak Rate 0 0007 psi min Spec 0 0100 psi min PASS BSL Results Rslt 0 0059 Spec 0 1 FS PASS Ofst 2 8e 05 V Grad 0 071 V psi Test Results PRESSURE ELECTRICAL VOLT O P TIME psi V V 0 0005 0 00002 5 000 15 40 19 0 0004 0 00001 5 000 15 40 20 0 0003 0 00001 5 000 15 40 22 0 0004 0 00001 5 000 15 40 24 0 0004 0 00001 5 000 15 40 25 0 0005 0 00001 5 000 15 40 27 0 0005 0 00005 5 000 15 40 28 0 0004 0 00004 5 000 15 40 29 Printed 10 26 30 17 03 93 Authorised K136 Issue No 2 Ei gt A 20 DPI 605 User Manual o Example 1 SCPI upload of Results File ADIF ABCDEFGHIJKLMNOPQR 12345678901234567 gt 1 P 9999 STD VERSION 1990 0 IDENTIFY DATE 16 03 93 TIME 15 39 36 DUTCH DEVICE_TYPE GAUGE FULLSCALE 10 00000 INFO TEST PROG COMPILED WITH 605 FILE MANAGER NOTE Please enter your employee No 171 NOTE Enter ambient temperature 21 DIMENSION LEAK_END TYPE EXPLICIT UNITS psi DIMENSION LEAK_START TYPE EXPLICIT UNITS psi DIMENSION LEAK_DROP TYPE EXPLICIT UNITS psi DIMENSION LEAK_RATE TYPE EXPLICIT UNITS psi min DIMENSION TIMESTAMP TYPE EXPLICIT DATA ACAL VALUES 0 0004 0 0003 0 0001 0 0007 15 40 12 Continued on page A 21 K136 Issue No 2 A AutoCal A 21 Continued fro
22. F2 K136 Issue No 2 4 Operation 4 13 4 5 4 Select Printer and Print Screen e Printer To select a printer proceed as follows o Switch the instrument to ON o Defaults ea o Press the SET UP key o Cal Test la units o Select Defaults F1 from the Set up menu D Comms S CS o Select Printer from the Select Default Settings menu The printer select option is on the second level of the Default m Printer 3 S o Contrast Settings menu and is accessible by first of all pressing the o Auto Off More F4 key on level 1 o More A oe Selecting the Printer option F3 from the Default Setting A X menu provides a list of printers supported by the instrument e g Printer Selection Druck 40 column printer lt 80 column printer Previous Next The currently selected printer is indicated by the position of the arrow Use the Next F2 and Previous F1 keys to move the printer to the required printer Press the Exit Menu key to return to the Default Settings menu e PrintScreen To print the screen proceed as follows o Ensure thatthe external printer or computer is connected to the RS 232 port and that the port is correctly configured See Section 4 5 3 o Press the DEL and ENT keys on the numeric key pad simultaneously The display will then be printed uploaded In the event of any problems being encountered the Print operation can be aborted by operation of the Exit Menu key
23. Pressure v Time EvT Electrical v Time and PvE Pressure v Electrical A typical display is shown below 9 20579 3 77796 0 Seconds 10 To exit Graph Mode press the Exit Menu key o Print Selection of the Print option enables all data associated with the selected replay file to be downloaded to a printer To make use of this option a printer mustbe connected to the RS 232 interface The appropriate printer must also have been selected from the Set up Menu Refer to Section 3 11 3 Printer o Upload This option is used to transmit Upload Data Log data to an external system via the RS 232 port Note that the RS 232 port must be configured in the correct way forthe external system RS 232 configuration is carried out under the Set up option Comms e Directory The Directory option provides alist of all the completed Data Log operations that have been stored in the instruments memory These will be listed in the order in which the Data Log operations were carried out not in file ID number order A typical directory listing is shown below K136 Issue No 2 3 Familiarisation 3 35 File ID Data Log Free Blocks 10846 DIE am zen arm certe mung zez B2 28 01 93 15 58 17 Page Up Page Down EL The e g Free Blocks 10846 legend gives an indication of remaining memory space and the first five entries in the directory are displayed The Page Up and Page Down funct
24. and Retry F2 key It should be noted that no results are recorded by the GT command K136 Issue No 2 A AutoCal A 11 e LEAK arg1 arg2 arg3 This command has 3 mandatary arguments o The first is the wait time for the leak test in seconds o The second is the test time for the leak test in seconds o The third is the maximum leak rate permissible in pressure units per minute After completion of the leak test if the leak rate is below that specified then the only option offered to the used is to Continue F1 If the leak rate is above that specified then three options are provided Accept F1 key Retry F2 key and Abandon F3 key Allthe data for the result of the leak testi e start pressure end pressure pressure drop and leak rate together with the specified permissible leak rate and PASS FAIL statement are presented in print of results upload of results and SCPI upload of results e BSLarg1 arg2 arg3 arg4 arg5 This command has 5 mandatary arguments o The first argument is the Full Scale of the transducer under test o The second argument is a number representing the specified allowable deviation from the Best Straight Line o The third argument is the units of the second argument e g PUNIT To represent selected pressure unit as specified in the Setup Block EUNIT To represent selected electrical unit RDG To represent percent of reading FS To represent percent of full scale o T
25. for each Data Log sequence This file number can be either alphabetical numerical or a combination of both Alpha characters are entered by means of the Alpha T F1 Alpha J F2 F3 and gt F4 keys Alpha T F1 scrolls forwards through the alphabet and Alpha J F2 backwards Shifting right to the next character position or left to a previous character position is achieved by the lt F3 and F4 keys respectively Numeric entries are entered directly from the numeric key pad The full alpha numeric text is added to the file by pressing the ENT key located on the numeric key pad o Selection of a Data Log trigger mode A Data Log sequence may comprise a number of separate logging operations each of which is initiated by a trigger signal Two basic trigger levels are provided Periodic and Event m Periodic The Periodic mode F1 is an internally generated mode which permits the Data Logger to be automatically triggered by internally generated timing pulses and termination of the logging sequence to be determined either by aprogrammable number of samples or ata programmable future time Stop Time Initially when Periodic F1 is selected the period between consecutive log pulses is requested as follows Enter Period Hrs Mins Secs O K136 Issue No 2 3 30 DPI 605 User Manual 3 11 5 Data Log Contd Data entry is made via the numeric key pad followed by ENT Leading zeros need not be
26. o Open the Vent Valve o Check that the pressure supply line is isolated before connection to the instrument o Fit the pressure supply line to the measuring port fitting a bonded seal between the pressure union and the pressure outlet port The pressure outlet port uses a G1 8 thread Ensure that the coupling is tight Test Equipment Depot 800 517 8431 99 Washington Street Melrose MA 02176 K136 Issue No 2 2 Installation 2 5 2 1 3 Electrical Connections e Switching ON and OFF The instrument is switched on by means of the ON OFF key located on the keyboard After switch on ashortinitiation period follows during which the valves Calibrator only are set to the correct states When the instrument displays pressure and electrical readings it is ready for operation A Low Battery warning is given when the internal rechargeable battery pack or alkaline batteries if fitted are approaching exhaustion An appropriate operating time of 1 minute is left when the Battery Low warning is given Power Charger Connections The external battery charger plugs into the power socket located on the right hand connector panel Figure 2 3 details the plug connections To charge an internally fitted NICad pack plug the charger power adaptor into the power socket located on the right hand side panel of the instrument It should be noted that the instrument does not need to be switched on in order to charge the internal battery
27. 1 LSD Accuracy Comprises Non Linearity Hysteresis and Repeatability as above plus 90 day stability 0 05 of reading between 200 mbar and 20 bar 0 1 mbar below 200 mbar Temperature Effects 1 bar to 20 bar gauge calibrator over 10 to 40 C The average temperature coefficient 0 002 of reading per C K136 Issue No 2 1 Introduction 1 5 Electrical Specification Electrical Inputs Voltage Measurement 0 to 50 V d c auto ranging max resolution 10 uV Input impedance 10 Ma Accuracy 0 04 of reading 1 digit including 90 day stability T C lt 0 0075 of reading per C Current Measurement 0 to 55 mA d c resolution 0 001 mA Internal resistance nominally 10 a Accuracy 0 03 of reading 1 digit including 90 day stability T C lt 0 0075 of reading Electrical Outputs Voltage Output Programmable floating output in the range 0 to 24 V d c max 50 mA Suitable also for current loop energisation and switch testing Current Output Programmable output in the range 0 to 55 mA d c for current display calibrations Configured as source voltage limit 19 V Configured as sink maximum applied voltage 30 V minimum applied voltage 5 V Analogue Output Signal Voltage or current output proportional to any measurand i e pressure voltage current or temperature Output ranges as for programmable outputs User programmable zero and full scale settings Bandwidth 1 to 2Hz updated with ea
28. 5 Data Log for information regarding Memory Space The gt 1 symbol in the results directory indicates the result obtained from a first test A gt 2 symbol indicates the results of the last test on a device K136 Issue No 2 3 44 DPI 605 User Manual 3 11 9 AutoCal Contd e Delete D ON DICH AUTO LEAK TEST _ CAL U TEST DATA This AutoCal function enables files to be deleted from the AutoCal memory Selection of the AutoCal Delete function F4 initially provides the option to delete files located in either the Tests directory or the Results directory The appropriate directory is selected by means of either the Tests F1 or Results F2 keys Selection of one of these directories produces the appropriate directory listing typical listings are shown below AutoCal Tests TS150000000000000001 TS150000000000000002 TS150000000000000008 TS150000000000000032 TS150000000000000033 Free Blocks 9212 N1234543670111111112 N1234543670111111113 N1234543670111111114 N1234543670111111115 N1234543670111111116 Page Up Page Down T L Typical Tests Directory AutoCal Results Free Blocks 9196 N1234543670111111112 gt 1 N1234543670111111113 gt 1 N1234543670111111114 gt 1 N1234543670111111115 gt 1 N1234543670111111116 gt 1 TS150000000000000001 TS150000000000000002 TS150000000000000008 TS150000000000000032 TS150000000000000033 Page Down T L Page Up Typical Results Directory The Pa
29. 5 mandatary arguments o The first argument is the Full Scale of the transducer under test o The second argument is a number representing the specified allowable deviation from the Terminal Straight Line o The third argument is the units of the second argument e g PUNIT to represent selected pressure unit as specified in the Setup Block EUNIT to represent selected electrical unit RDG to represent percent of reading FS to represent percent of full scale o The fourth argument is a string of up to 40 characters which can be displayed when the TSL calculation is completed by the instrument and the specifieddeviation has been met o The fifth argument is also a 40 character string which can be displayed when the TSL deviation exceeds that specified in arg2 K136 Issue No 2 A AutoCal A 13 The TSL command can only be used in the End Block and only ifthree or more points have been logged during execution of the Test Block Execution of the command results in the instrument calculating the Terminal Straight Line TSL for the logged points The deviation of each actual point from the TSL is then calculated The worst case calculated deviation from the TSL is then displayed together with the specified deviation arg2 followed by either PASS or FAIL Four options are provided TSL Accept F1 Key Notes F2 key this shows the pass fail text arg4 or arg5 Details F3 key
30. Contd Note that ifthe Dial Gauge display option was selected forthe test under review E Points gives a graphic output of Dial I P v Points and PvE Pressure I P v Dial Gauge reading E Print AUTO CAL ooeo Dap Test Replay Directory Delete Display Graph Print Upload Selection of the Print option F3 causes all data associated with the selected replay file to be downloaded to aprinter To make use of this option aprinter must be connected to the RS 232 interface The instrument software supports two types of printer a 40 column portable printer and an 80 column printer The printer types are set up under the Set up option for Defaults see Section 3 11 3 The instrument automatically formats the output file for the type of printer in use A typical printout is shown below Calibration Certificate Test Equipment DPI 605 Serial No 0 DPI 605 S W Version 0 53 Last Cal Date 17 04 92 Pressure Range 20 bar g Device Under Test File Identity 2 Date 14 07 92 Time 19 55 52 Serial Number 1234 DUT Full Scale 20 00000 File Type Auto Cal File Test Results PRESSURE ELECT TIME bar Milliamps 0 61675 0 007 9 55 53 0 59540 0 007 9 55 56 0 54291 0 007 9 56 00 0 51893 0 007 9 56 03 Printed 9 57 42 14 07 92 Authorised K136 Issue No 2 4 Operation 4 55 m Upload Selection of Upload option F4 causes all data associated with the selected AutoCa
31. DATalog __csTartime __ THReshold CsToPtime D TGATalog TEST AU Tocal DATalog CALL ALL rer Litauen Li BS gt Recal NEXT STORE NEXT TEST SERIAI DISPlay a gt EWINDow IGRAPhics TEXT B 7 ITiMeout L_CcoNTrast gt CPRESsure CSTATe CCAMPLitude PROTection GLEVel CCPV Voltage KMATR 2 gt It STATe J D Even CIMMediate CAMPLitude I CKMATh 2 gt OUTPut L_c PRESsure TEMPerature C cUuRRent gt _C STATe gt GLEVel CIMMediate C AMPLitude D CBATTery gt C VOLTage gt K136 Issue No 2 B 8 DPI 605 User Manual SALOulate 2 gt DEViation gt CPERGent DATA Lesta gt CGSTATe D Forma gt INPur 2 FLOW CSTATe ZERO Filter GLPAS STARE CSTATe LEAKtest RESer state TIME Low Switchtest RESer CSTATe gt TTEMPerature
32. Header Suffix 4 1 1 1 graphics_display_cmd graphics_state BOOLEAN DISPlay WINDow GRAPhics STATe Header Suffix 4 1 1 1 graphics_display_qry DISPlay WINDow TEXT CLEar Header Suffix 4 1 1 1 display_clear_cmd DISPlay WINDow TEXT CLEar ALL Header Suffix 4 1 1 1 1 text_clear_all_cmd DISPlay WINDow TEXT LOCate Header Suffix 4 1 1 1 display_locate_cmd display_x display_y NUMERIC_REAL NUMERIC_REAL DISPlay WINDow TEXT LOCate Header Suffix 4 1 1 1 display_locate_qry DISPlay WINDow TEXT PAGE Header Suffix 4 1 1 1 display_page_cmd display_page_val DISPlay WINDow TEXT PAGE Header Suffix 4 1 1 1 display_page_qry DISPlay WINDow TEXT STATe Header Suffix 4 1 1 1 text_display_cmd text_state BOOLEAN DISPlay WINDow TEXT STATe Header Suffix 4 1 1 1 text_display_qry NUMERIC_REAL B 23 SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE K136 Issue No 2 E Ho B 24 DISPlay WINDow TEXTI en Header Suffix 4 1 1 display_text_str_cmd text_string STRING DISPlay WINDow TEXT DATA Header Suffix 4 1 1 1 display_text_str_qry DISPlay WINDow Header Suffix 4 1 window_qry disp_string STRING GT autocal_goto_cmd goto_value goto_limit INFO info_cmd info_string STRING INPut FILTer LPAS Header Suffix 2 1 1 INPut FILTer LPAS STATe 1 Header Suffix 2 1 1 filter_state_cmd filter_stat BOOLEAN INPut FILTer LPAS er Header Suffix 2 1 1
33. TIMeout STATe powerdown_state_qry SYSTem POWer STATe power_state_cmd power_stat BOOLEAN SINGLE SYSTem PRINter printer_value_cmd printer_val NUMERIC_REAL SINGLE K136 Issue No 2 B SCPI Communications Protocol SYSTem PRINter printer_value_qry SYSTem TIME time _cmd hour NUMERIC_ INT SINGLE minute NUMERIC_INT SINGLE second NUMERIC_INT SINGLE SYSTem TIME time_qry SYSTem VERSion SS_system_version_qry SYSTem KEY simulate_key_cmd key_string STRING SERIES TEST SERial serial_test_cmd TSL autocal_tsl_cmd acal_tsl_fs acal_tsl_dev acal_tsl_type ENUMERIC SINGLE tsl_pass_str STRING SINGLE tsl_fail_str STRING SINGLE UNIT TEMPerature temperature_units_cmd temp_units ENUMERIC SINGLE UNIT TEMPerature temperature_units_qry UNIT PRESsure pressure_unit_cmd presr_unit SUFFIX_DATA SINGLE UNIT PRESsure SFACtor special_factor_cmd ScaleFactor UNIT PRESsure SFACtor special_factor_qry UNIT PRESsure pressure_unit_qry NUMERIC_REAL SINGLE NUMERIC_REAL SINGLE NUMERIC_REAL SINGLE B 33 K136 Issue No 2 fee B 34 DPI 605 User Manual VARIABLE LISTING APR RH RUN SPECTRUM SOLUTIONS SCPI INTERPRETER Copyright 1991 1992 gt Title PARSER DRUCK2 MAP Bere ch ke VARIABLE NAME ac_high_current 1 00e 011 1 00e 011 ac_low_current 1 00e 011 acal_bsl_dev 1 00e 011 acal_bsl_fs 1 00e 011 acal_bsl_type EU
34. a percentage of full scale o Auto This mode is selected when programmed AutoCal test sequences are loaded into the instrument from an external source via the RS 232 interface For each device to be tested aseries of pressure and or electrical way points are programmed into the instrument The operator carries out a test by connecting the device under test to the instrument and by operating the hand pump calibrator or adjusting the applied pressure indicator until the pressure reaches a specified set point The measurands at this point are then recorded by manual operation of the AutoCal key Following this instructions to proceed to the next way point are given Auto AutoCal routines are described in Section 4 15 e Replay The Replay option F2 is used to either recall any selected AutoCal file to the display or to download the stored data to an external printer via the RS 232 interface port When Replay is selected a directory showing the first page of AutoCal logged files is displayed To replay a AutoCal file select the desired file by means of the Page Up F1 Page Down F2 T F3 or 4 F4 cursor keys and press the ENT key on the numeric key pad Four display modes are then provided these being termed Display F1 Graph F2 Printer F3 and Upload F4 K136 Issue No 2 3 42 DPI 605 User Manual 3 11 9 AutoCal Contd o Display When Display is selected the instrument prompts for a f
35. and F4 See Units Pressure Key pad Section 3 8 Operation of this key displays the full range of units available together with an indication of the units to which each function key is currently assigned torr ftH20 atm ftH204 psi F2 Spec l Ib ft2 Blank inHg Blank inH2O Blank inH204 The default setting for any key is changed by pressing the required function key which will cause it to scroll through the menu missing out units assigned to the other function keys The key is assigned the unit beside which it is displayed Assigning three function keys to Blank provides the facility of setting up the instrument for single pressure unit operation E Spec l ETUP 6 ON OFF SMTO AUTO LEAK IS Oo TEST DATA STORE RE LOG CAL This option is used to set up any special conversion factors required for the pressure units The conversion factor Pascals to Special Units is entered from the numeric key pad p Temperature SET UP ON OFF SOT AUTO V LEAK TEST CAL TEST DATA STORE RE LOG CAL This function is used to set the display to read either degrees Fahrenheit F or degrees Celsius C K136 Issue No 2 IR 3 22 DPI 605 User Manual 3 11 3 Set up Contd o Comms D ON SICH AUTO f LEAK TEST IL ON U TEST DATA STORE RE LOG CALL This function is used to set up the RS 232 communications parameters Selecting Comms from the Default menu set up provides th
36. as the Tare value or press Manual F2 If Manual is selected enter the required Tare value on the numeric key pad and press ENT Note that any Tare value entered will be subtracted from the indicated pressure reading Ifa Tare value requires adding to the indicated pressure reading a negative number should be entered o Enable the Tare function by pressing the On F3 key Conversely the Tare function is disabled by pressing the Off F4 key A T symbol is displayed beside the pressure display to indicate when the function is enabled e Peak The Peak function is used to reconfigure the instrument s pressure window to read the positive and negative peaks of the pressure reading To selectthe Peak function proceed as follows o Select Process by pressing the PROCESS key located in o Tare the Pressure key pad e Peak a nn o Press the Peak F2 key Amenu showing the status of the eee Tare process is now displayed e g A Manual e A Peak Display Clear On Off o Enable the Peak function by pressing the On F3 key The current peak display can be reset by operation of the Clear F1 key The Peak function is disabled by pressing the Off F4 key Note that the Peak function may have to be re selected to turn off the facility or to clear the peak display Test Equipment Depot 800 517 8431 99 Washington Street Melrose MA 02176 FAX 781 665 0780 TestEquipmentDepot com K136 Issue No 2 4 Operation 4 2
37. details of the methods of replaying recorded Data Log data refer to Section 4 15 3 K136 Issue No 2 4 Operation 4 33 4 15 1 Use of Data Log Directory and Delete Utilities e Directory CERN ON serup DISBLA SMMTCH AUTO LEAK TEST JL CA TEST DATA STORE RE LOG CALL 10846 DATA LOG Record Replay Directory Delete e Delete DATA LOG Record Replay Directory Delete Yes A No Selection of the Directory F3 option from the Data Log menu provides alist of all the completed Data Log operations that have been stored in the instruments memory These will be listed in the order in which the Data Log operations were carried out notin file number order Atypical directory listing is shown below File ID Data Log A17966 28 01 93 15 37 10 A17222 28 01 93 15 40 03 C22713 28 01 93 15 51 32 C070842 28 01 93 15 51 32 B2 28 01 93 15 58 17 Page Up Page Down The e g Free Blocks 10846 legend gives an indication of the remaining memory space and the first page of the directory five entries is displayed The Page Up and Page Down functions allocated to the F1 and F2 keys respectively provide a means of scrolling forward to the next page or back to a previous page of a directory listing The Exit Menu key is used to return to the main Data Log menu When first entering the Data Log functions it is good practice to interrogate the directory This will enable the operator to determin
38. entered i j Following entry of the sampling period the stop event must be defined A choice of two options is provided Stop Time F1 and Samples F2 Stop Time When the Stop Time option is selected the instrument prompts for the entry of a time e g Stop Time Hrs Mins D The time is entered via the numeric key pad followed by ENT The instrument now prompts for a Data Log Start condition to be defined e g Timed Data Log Start Now Later Condition By selection of one of these functions the Data Logging operation will commence either immediately Now at a later time Later or following one of a number of external event options Condition These options are Switch Logic and Threshold Section 4 14 fully describes these features When all the Data Log parameters have been defined a summary screen is written to the display as follows e g Data Log Parameters Logging Trigger Start Threshold Bu Periodic time 15 0000 bar 00 00 05 Stop 20 Samples File ID B1601 Continue This summary screen which is presented as soon as all the Data Log parameters have been defined remains displayed until the Continue F1 key is pressed Following this the Data Log function is enabled K136 Issue No 2 3 Familiarisation 3 31 Samples If number of samples is selected as the Data Log Stop condition the instrument prompts for the entry of anumber of Samples e g Enter number of Sam
39. function causes the Ratio Calibration Dates to be displayed as follows e g Ratio Calibration Dates Transducer Supply 27 01 98 Span Cal Sig 27 01 98 Previous Next Operation of the Next F2 Key causes successive sets of calibration data to be displayed in turn The data displayed is as follows Ratio Calibration Dates Internal Range 2 Calibration Electrical Calibration Dates External Range 1 Calibration Barometer Calibration Dates External Ranges 2 to 10 Internal Range 1 Calibration To exit the function press Exit Menu e Cal Test This facility provides access to the instrument s calibration and selftest facilities It requires the entry of a password PIN number before entry is permitted Details of the use of this facility are provided in the calibration procedures Section 6 When the instrument is first supplied the allocated PIN number is 123 The calibration facility should be used with extreme caution Misuse of this facility can cause loss of the instrument s calibration o Keyboard Locking Facility This feature will allow any of the keyboards keys with the exception of the ON OFF key to be either enabled or disabled The instrument is supplied with all keys enabled Under Cal Test the keyboard locking facility is password protected Test Equipment Depot 800 517 8431 99 Washington Street Melrose MA 02176 FAX 781 665 0780 TestEquipmentDepot com K136 Issue No 2 3 Familiarisa
40. functions associated with the Eventtrigger mode Figure 4 5 shows the sequence of parameter selection for the Event mode and Fig 4 6 typical summary screen displays K136 Issue No 2 4 40 DPI 605 User Manual 4 15 2 Data Log Record Operations Contd SELECT EVENT SELECT DATA LOG START CONDITION F3 LATER F2 NOW F1 SWITCH F1 J Loaic F2 THRESHOLD F3 SELECT SELECT SELECT SOURCE ENTER SELECT STATE OF LOGIC OF THRESHOLD START TIME MANUAL SWITCH STATE TRIGGER HRS MIN SEC LOGGING MODE PRESSURE F1 ELECTRICAL F2 ar a SG E U E a w w ENTER ENTER cu 2 Z THRESHOLD THRESHOLD S 3 o LEVEL LEVEL O m O 2 A SELECT SELECT PRESS TRIGGER TRIGGER LOG F1 DIRECTION DIRECTION KEY E 8 E 8 w eg w e D gt w gt w gt gt E Z PRESS STOP oO D oO a TO UI O UI z a E a TERMINATE v Y D Datalog Parameters Logging Trigger Summary Screen File ID Continue Figure 4 5 Event Mode Test Equipment Depot 800 517 8431 99 Washington Street Melrose MA 02176 K136 Issue No 2 4 Operation Data Log Parameters Logging Trigger Switch Test Open Stop 14 00 File ID CER11 Continue Data Log Parameters Logging Trigger Threshold 12 000 mA Stop Single Shot File ID CER12 Continue Logging Trigger Data Log Parameters Login Test ve edge N A File I
41. gauge K136 Issue No 2 4 Operation 4 31 4 14 e o o If required on completion of test press the STORE button to store data associated with the test The display will now show the hysteresis between the operating points of the pressure switch contacts Where a pressure switch has change over contacts repeat the test for the other switch pole i e test both the normally open and normally closed contact sets For pressure switches with multiple contact sets repeat the test for each contact set Press the Reset key F1 to cancel the last test and set up another Press Exit Menu key to quit Switch Test Temperature Measurements Two types of Platinum Resistance Temperature Probes may be used in conjunction with the instrument a PT100 for temperature ranges 55 to 250 C and PT 25 for temperature ranges 55 to 800 C To ascertain which type is selected and to change the selection if required proceed as follows o e e Switch the instrument ON Press the Set up key and select Defaults F4 Press the More F4 key twice and select Temp Probe F3 The instrument reports the currently selected temperature probe and provides the option to select another type e g Temperature Probe PT 100 PT 100 PT 25 Select the appropriate probe by means of either the PT 100 F1 or PT 25 F2 keys Exit the set up mode by pressing the Exit Menu key twice To carry ou
42. in Section 4 15 1 K136 Issue No 2 4 Operation 4 47 o Select Test F1 from the AutoCal menu This action provides a prompt requesting the type of AutoCal operation to be carried out e g Select type of AutoCal Manual Auto o Select the required mode by pressing either the Manual F1 or Auto F2 keys Manual AutoCal procedures are described in Section 4 15 2 and Auto AutoCal procedures in 4 15 4 Section 4 15 3 describes the method of replaying AutoCal data 4 16 1 Use of the AutoCal Directory and Delete Utilities e Directory Utility Selection of the Directory F3 option from the AutoCal menu provides access to two directories a Tests TEST E TEST directory and a Results directory The relevant directories are selected by the Tests F1 and Results F2 keys Both directories are listed in the order in which the AutoCal operations were carried out For Auto AutoCal this means the order in which the tests were programmed and the results collected Typical directory listings are as follows 4 AUTO CAL AutoCal Tests Free Blocks 9212 o Test o Replay e Directory TS150000000000000001 N1234543670111111112 o Delete TS150000000000000002 N1234543670111111113 TS150000000000000008 N1234543670111111114 TS150000000000000032 N1234543670111111115 TS150000000000000033 N1234543670111111116 Page Up Page Down Typical Tests Directory AutoCal Results Free Blocks 9212 TS150000000000000001 N1234543670111111
43. incorporated into the instrument to allow external voltages and currents produced by the devices under test to be monitored These electrical inputs are passed via a DMM interface to the micro controller which processes the incoming signals to provide a digital display of the measured values Both the pressure and electrical signals can be processed by the instrument in a number of ways to provide the operational features of the instrument These features which are fully described in Section 3 are software controlled by a series of functionally related operations which are written to the display The interface between the operator and the instrument is via the keyboard Four output terminals labelled A B C and D can be programmed by the micro controller via an output interface to source or sink electrical currents or to source electrical voltages These electrical outputs can also be programmed to be proportional to any measurand i e pressure temperature voltage or current In addition to providing an electrical output facility the micro controller can program combinations of these terminals to accept trigger inputs for its internal Data Logger and pressure switch test functions An RS 232 interface provides a communication channel between the instrument and an optional printer or a computer system In order to avoid earth loop problems Opto couplers and transformers are used to make this interface fully floating with respect to the rest
44. is invisible to the user If there is not enough free memory space available a temporary file as large as possible is created Under these circumstances only the part of the replay file accommodated in the temporary file will be available for replaying If more space is made by deleting other files then replay of the whole file will subsequently be possible NOTE Ifthe file is extracted from the instrument via the RS 232 interface using the SCPI protocol the whole file is always retrieved e Delete This Data Log function enables files to be deleted from the Data Log memory Selection of the function provides a directory listing and four cursor keys Page Up F1 Page Down F2 T F3 and J F4 e g File ID Data Log Free Blocks 10846 28 01 93 15 37 10 28 01 93 15 40 30 28 01 93 15 43 16 28 01 93 15 49 32 28 01 93 15 58 29 Page Up Page Down T ne The Page Up and Page Down keys are used to select the appropriate directory page andthe T keys to select the file on the page To delete the selected file position the cursor against the file name and press the ENT key on the numeric key pad A warning is displayed as follows Delete Are you sure Yes No The file is deleted on subsequent operation of the Yes F3 key or the Delete operation aborted by operation of the No F4 key K136 Issue No 2 3 Familiarisation 3 37 3 11 6 3 11 7 Leak Test This function a EE a GE m Sg under test en the fac
45. of manufacture of the transducer and should NEVER be altered in any way without reference to the manufacturer K136 Issue No 2 6 Calibration 6 5 m Frequency This function is used to set up the internal reference frequency of the instrument The procedure takes the form of measuring the reference frequency nominally 10MHz to be found on the main printed circuit board connector PL14 pin 2 signal pin 3 ground and entering its value via the key pad E Diode The function is used to set up the measurement of the Barometric transducer diode voltage output The procedure takes the form of measuring the actual diode voltage output from the Barometric transducer and entering its value via the key pad The voltage is to be found on the main printed circuit board connector PL16 pin 1 positive and pin 2 negative 1 Point This function provides the ability to make a single offset style correction to the indicated barometric pressure The procedure is simply to enter the accurately known barometric pressure via the key pad This causes the indicated barometric pressure to take on the value entered The Ratio F3 option from the calibration adjustment menu provides the facility to set up the Ratio Reference within the instrument The ratio reference is used by the instrument for measuring the output from the internal transducers except the barometric transducer and also any external transducers used It is therefor
46. of the instrument K136 Issue No 2 22 DPI 605 User Manual PRESSURE PORT Y gt PNEUMATIC EXTERNAL TRANSDUCER mum TEMPERATURE TRANSDUCER mm KEYBOARD i i i I S BREATHER PORT N P d BEE ave X VENT V BAROMETRIC gt DISPLAY DISPLAY V OPTION l MICROCONTROLLER SYSTEM P V 2BAR 1 ASSEMBLY 1 P SWITCH TEST DATALOG V 20 BAR INTERFACE gt 1 SYSTEM 3 POWER SUPPLIES RS 232 S POWER d SUPPLY RS 232 SIS BATTERIES INTERFACE DMM INTERFACE CIRCUITS Figure 2 1 Simplified Functional Diagram Calibrator Version K136 Issue No 2 2 Functional Description 2 3 KEYBOARD i REFERENCE PORT P gt ee ip H SENT BAROMETRIC DISPLAY OPTION S i 4 VENT MICROCONTROLLER 1 Re SYSTEM i A PA i PRESSURE PORT A gt gt i 1 V 5 SWITCH TEST Weg i DATALOG 1 INTERFACE 4 1 EXTERNAL TRANSDUCER gt S TEMPERATURE TRANSDUCER mm gt 8 A 1 1 SYSTEM POWER SUPPLIES 1 S POWER Le SUPPLY S 1 A Pi 1 BATTERIES PRESSURE RATING 1 SPECIFIED TO SUIT APPLICATION RS 232 INTERFACE RS 232 DMM com INTERFACE CIRCUITS Figure 2 2 Simplified Functional Diagram Indicator Version K136 Issue No 2 2 4 DPI 605 User Manual An internal power
47. option chosen The instrument thentransmits the Results Fileviathe RS 232 port The data is formatted to suit the optional DPI 605 Printer K136 Issue No 2 A AutoCal A 7 e Upload Using the instrument keypad the required Results Fileis selected for Replay and the Upload option chosen The instrument then transmits the Results File via the RS 232 port The data is formatted to make it easy to import the file into most common spread sheet packages e g Excel Quattro Pro etc e SCPI upload The required Results File can be requested by a computer connected to the RS 232 port using the SCPI protocol detailed elsewhere In this case the file is formatted in line with the SCPI Data Interchange protocol 6 TRANSFERRING FILES TO AND FROM THE INSTRUMENT Both Test Programsand Results Filescan be uploaded from and downloaded to the instrument by computer via the RS 232 port The SCPI Standard 1992 protocol is implemented for communication over the RS 232 port Therefore SCPI commands are used to control the transferring of either type of file and also for housekeeping tasks such as deleting files in the instrument The full SCPI command set for the instrument is detailed elsewhere but for convenience the relevant commands are explained here also e Downloading Test Programs MEMORY SAVE lt CR gt lt LF gt file block The file block is the Test Program starting with the ADIF identifier e Uploading Results Files and Test Programs M
48. remain selected after the instrument has been switched off and back on again The exceptions are the Ana Output and Prog Output These remain set up atthe last programmed level but are switched off on power up To select the required On State proceed as follows SET UP Defaults Battery o Status Cal Test o00 Units Comms Clock o More 000 Printer Contrast Auto Off More 000 o Resolution On State gt On Off Q gt Switch the instrument to ON Press the SET UP key Select Defaults F1 option from the Set up menu Select More F4 twice Select On State F2 This will report on the state of the on state function e g Restore last set up Off On Off Select On F3 or Off F4 as required K136 Issue No 2 4 16 DPI 605 User Manual 4 6 Generating a Pressure The pressure generation controls of the instrument are shown in Fig 4 1 and comprise the following e Vent Valve 2 e Volume Adjuster 4 e Hand pump 3 e Pressure Test Port 5 The associated pressure control panel is shown below A description of the controls is given in Section 3 Note It is not possible to generate a pressure with the indicator version of the instrument Sections 4 6 1 and 4 6 2 still apply however to the indicator version of the instrument Pressure o Switch the instrument to ON by means of the ON OFF key The instrument will default to its internal pressure tra
49. rules and no harm can be done to the instrument by sending incorrect commands A small amount of experimentation with an instrument should therefore successfully answer any simple queries encountered It should be noted that in the many examples listed below for the sake of clarity no use has been made of default commands and short form command names e INFO TSL BSL NOTE GT PT LEAK ACC MESS These commands all relate the AutoCal mode of operation of the instrument they are generally only of use in AutoCal Test Procedures and definitions of them can be found elsewhere e MEMORY Relates to all memory related operations of the instrument MEMORY SAVE is used to send AutoCal Test Programs to the instrument Refer to Appendix A AutoCal MEMORY FREE returns the number of bytes of data memory available and the number of bytes used Datamemory is used for storing AutoCal Test Programs AutoCal Results Files and Data Log Results Files One reading on the display occupies 4 bytes when stored and for each stored display the time is also stored which takes a further 4 bytes K136 Issue No 2 E Ho B 10 DPI 605 User Manual MEMORY DATALOG is used in conjunction with the commands following it to set up the Data Log function of the instrument MEMORY CATALOG is used to provide alist of files contained in the instrument Three file types exist AutoCal Test Programs AutoCal Result Files and Data Log Resu
50. selected operation and currently set value of any associated parameters e Key Annunciators Displays the function allocated to the function keys F1 to F4 located immediately below the display The functions are software selected and will depend upon the currently selected mode of operation Keyboard The keyboard of the DPI 605 is divided into six groups Four function keys F1 to F4 and Exit Menu Numeric keys Pressure measurement keys Electrical input keys Electrical output keys Mode select keys K136 Issue No 2 3 Familiarisation 3 9 3 6 Function Keys The calibration and measurement functions of the DPI 605 are menu driven by the instrument software and the user dialogue is via the four function keys labelled F1 F2 F3andF4 These function keys are allocated specific functions depending upon the particular mode of operation of the instrument which has been selected The function allocated to each particular key is indicated by the Key Function Annunciator line of the display which writes a specific legend over the top of the key The Exit Menu key is a special key whose function is not software allocated An example of a typical function key allocation is shown below Pressure Processing Selection Tare Peak FS More F2 Exit F3 Menu Figure 3 3 Typical Function Key Allocation In this example which is displayed after operation of the PROCESS key located in the pressure measurement
51. the SCPI protocol The actual command words are in many cases not instantly identifiable with the instrument facilities to which they relate Essentially this is because SCPI protocol was devised for a very generalised instrument and not specifically for the DPI 605 K136 Issue No 2 B SCPI Communications Protocol B 3 Most functions of the instrument have explicit SCPI commands which relate to them however not every aspect of the instrument is covered in this way The most notable exception is that the calibration of the instrument itself has no explicit SCPI commands This does not mean that the process of calibrating the instrument cannot be controlled over the RS 232 port instead of conventionally by the keyboard The pressing of any key on the instrument s keyboard can be simulated via the RS 232 port using the SCPI key press simulation command and in this way access to all the features not having explicit SCPI commands can be gained The user may realise that in principle virtually all of the SCPI command s with the notable exception of those which return readings could be made redundant by using the key press simulation commands This however has a number of disadvantages One is that in general more individual commands have to be sent using key press commands than using explicit commands More significantly however the explicit commands will always perform the intended function no matter where the instrument is in its men
52. to a flow rate Essentially a square root function This function can be enabled or disabled by means of the F1 and F2 function keys Asquare root symbol is displayed when this function is enabled Changes the mode of the hand pump from pressure generation to vacuum generation and vice versa Change over cannot occur whilst either a high pressure or vacuum state exists in the outlet manifold If either of these conditions exist and change over is required the system must first be vented If an attempt is made to switch the system to vacuum whilst the manifold is still pressurised or vice versa a message is displayed e g Please Vent the System Used to provide a zero offset function for the pressure display This control cannot be used to remove very large offsets These should be removed by the Tare function Electrical Input Key Functions The four electrical input controls located in this Key pad area are used to control the mode of operation of the digital multimeter DMM section ofthe instrument The key functions are as follows Selects voltmeter to be displayed in the electrical window of display Voltage input signals are applied between the V and COM terminals The maximum voltage that can be measured is 50 V d c and the voltage function is auto ranging The maximum range value is displayed on the instrument when this mode is selected e g Voltmeter FS 50 V K136 Issue No 2 3 Familiarisation 3 13
53. to a noisy fluctuating input signal line This can be enabled or disabled by means of the On F1 and Off F2 function keys A low pass filter symbol is displayed when this function is enabled This is essentially a square root function This function is programmable ON OFF by means of the On F1 and Off F2 function keys respectively A d symbol is displayed when this function is selected Used to display signal deviation On selection a choice of Accept Format or Off is given from the F2 F3 and F4 function keys respectively K136 Issue No 2 3 Familiarisation 3 10 Electrical Input o Zero Electrical Input 3 15 Accept F2 Permits a straight lineto be definedby afullscale and alower point by direct entry of data from the numeric Key pad The form of entry is pressure units as currently selected in pressure display referenced to a parameter e g voltage level for both full scale and lower limits The Accept switch toggles between full scale and lower limit entry lines Format F3 Used to select the error format of the displayed error Available options are either percentage of full scale FS percentage of reading RDG or in the currently selected electrical units E Units or pressure P Units OFF F4 Turns the deviation function OFF Used to cancel any zero offset on the recorded display level when either mA or Volts is selected Electrical Out
54. two types of display Pressure Electrical and Pressure Gauge Pressure Electrical is the standard display and is selected by the Yes F1 function key Pressure Gauge provides a facility to manually enter a pressure gauge reading against the DPI 605 pressure display for each Log operation and is selected by the Dial Gauge F2 function key Following selection of the desired display option the instrument requires entry of the following parameters Sequential prompts for data are requested as follows Enter File ID Transducer SN Enter FSD of transducer Alpha numeric parameters may be entered in the File ID and Transducer SN fields followed by ENT The FSD field only accepts numeric characters entered via the numerical key pad Following entry of these parameters the device under test is connected to the instrument and the required calibration test performed At each way point calibration data is stored by operation of the AutoCal Log key The Stop key terminates an AutoCal manual calibration sequence and provides access to an analysis of results function as follows e g Analyse Results BSL TSL ABS These options are Best Straight Line BSL Terminal Straight Line TSL and Absolute ABS Both are straight line graphs of the form y mx c Grad a b Offset gt je K136 Issue No 2 IR 3 40 DPI 605 User Manual 3 11 9 AutoCal Contd The BSL option calculates the best straight line taking e
55. unit provides all the regulated supplies that are needed to power the instrument and to source the electrical output signals A rechargeable battery pack provides the required power supply An external plug in power adaptor is provided to enable the instrument to be powered from an a c mains power supply If the internal battery pack becomes discharged the instrument can be powered by inserting six alkaline cells 1 5V D size into the battery compartment in place of the rechargeable battery pack The DPI 605 indicator operates in a similar manner to the calibrator differing in that itcontains only a single pressure transducer covering the specified pressure range A second transducer is only fitted if the Barometric Option is ordered Figure 2 2 shows a simplified functional diagram of the indicator 2 1 Installation 2 1 1 Input Output Connections Connections to the instrument are made to the appropriate connections as shown in Figure 4 9 Pressure connections are made to the Pressure Port located on the top of the instrument and electrical connections to the two side panels 2 1 2 Pressure Connections To connect to the measuring port proceed as follows e Calibrator Versions o Open the Vent Valve o Fit the pressure output line to the measuring port fitting a bonded seal between the pressure union and the pressure outlet port The pressure outlet port uses a G1 8 thread Ensure that the coupling is tight e Indicator Versions
56. 0 F S For 1 bar calibrations full scale range is defined as the compound range Ranges 0 to 71 to 0 to 350 bar 0 08 of reading between 20 and 100 F S 0 016 of F S between 0 and 20 F S Figures include 90 day stability Temperature Effects 70mbar to 30 bar internal sensors 0 003 RDG per C Equipment Accessories The instrument is supplied together with its standard accessories which are as follows Qty Item Carrying Case Power Adaptor Battery Charger Set of Test Leads User Manual K136 Calibration Certificate RS 232 Adaptor Lead ech zech sch sch sech sch K136 Issue No 2 1 8 DPI 605 User Manual K136 Issue No 2 2 Functional Description 2 1 2 FUNCTIONAL DESCRIPTION Basically the DPI 605 calibrator consists of apneumatic assembly which contains the input output pressure manifold two digitally characterised pressure transducers and the solenoid operated control valves associated with the pneumatic system If the barometric option is chosen a third resonant type transducer is fitted to the pneumatic assembly to measure atmospheric barometric pressure Figure 2 1 shows a simplified functional diagram of the instrument The electrical outputs from the pressure transducers representing the pneumatic manifold pressure input or output pressure is processed by the micro controller system to produce a pressure indication on a graphics display A digital multimeter DMM is
57. 0095 lt CR gt lt LF gt COMMAND AND VARIABLE LISTINGS The following two listings are provided for the advanced user They detail all commands and give information on the variable used by each command It is stressed that these listings are intended for the serious computer literate user who wishes to use the SCPI protocol to its full The slightly less ambitious user may however having thoroughly read the preceding Sections of this manual find some helpful information contained in the listings The Function Listing has a entry for every path through the command tree from the root to the tip of each branch Each path represents a command sequence The entries are listed in alphabetical order but starting with the so called Common Commands Each path or command sequence is usually followed by a pseudo description For example the command sequence SYSTEM KEY is followed by the pseudo description simulate_key_cmd After the pseudo description the names used internally by the instrument for variables associated with the command sequence are given in order Also provided is the type of each variable for example Boolean String Numeric_Real or Enumeric meaning enumerated The Variable Listing has a entry for every variable found in the Function Listing and provides further details for each one The details provided include the maximum minimum default and reset values together with the defined values for enumerated types K136 Is
58. 1 e F S The F S key is used to reconfigure the pressure display to read percentage of Full Scale rather than pressure units To selectthe F S function proceed as follows o Select Process by pressing the PROCESS key located in o Tare the Pressure key pad o Peak e FS o Selectthe F S F3 key The F S display menu is now o More PER displayed and will indicate current function status e g Readi A Manyar 0 0 00000 D FS 20 0000 bar o Of Reading On Off o Setthe desired value for 0 either by pressing ENT to accept the current value in the status line or Reading F1 to enter the current pressure value as 0 Alternatively enter a numeric value on the key pad followed by ENT o Set the desired value for 100 either by either pressing ENT to accept the current value in the status line Reading F1 to enter the current pressure value as 0 Alternatively enter a numeric value on the key pad followed by ENT o Enablethe F S function by pressing the On F3 key Conversely disable the function by pressing the Off F4 key Filter The low pass filter function is selected as follows o Select Process by pressing the PROCESS key located in o Tare the Pressure key pad o Peak o FS e More o Pressthe More F4 key followed by the Filter F1 key The ser pressure Filter menu will now be displayed e g o Flow d o More Pressure Filter AO A OH On Off o Enable the Filt
59. 112 gt 1 TS150000000000000002 N1234543670111111113 gt 1 TS150000000000000008 N1234543670111111114 gt 1 TS150000000000000032 N1234543670111111115 gt 1 TS150000000000000033 N1234543670111111116 gt 1 Page Up Page Down Typical Results Directory K136 Issue No 2 4 48 DPI 605 User Manual The e g Free Blocks 9212 legend gives an indication of remaining memory space and the first five entries in the directory are displayed The Page Up and Page Down functions allocated to the F1 and F2 keys respectively provide a means of scrolling forward Page Down or back Page Up through the directory listing The Exit Menu key is used to return to the main AutoCal menu When first enteringthe AutoCalfunction itisgoodpracticeto interrogate the directory This will enable the operator to determine what file ID numbers have already been used since an attempt to use an existing file ID number to record an operation will resultin the display of an error message File already exists uP D ON ae SMTH AUTO LEAK TEST CAL A TEST DATA STORE RE LOG CALL The gt 1 symbol in the results directory indicates the result obtained from a first test A gt 2 symbol indicates the results of the last test on a device e Delete Utility This AutoCal function enables files to be deleted from the AutoCal memory Selection of the AutoCal Delete function initially provides the option to delete files located in either the Tests dire
60. 2 E fee B 26 DPI 605 User Manual MEMory DATalog STARttime dlog_start_time_cmd dlog_start_hrs dlog_start_mins SINGLE SINGLE NUMERIC_REAL NUMERIC_REAL MEMory DATalog STARttime dlog_start_time_qry MEMory DATalog STOPtime dlog_stop_time_cmd dlog_stop_hrs dlog_stop_mins SINGLE SINGLE NUMERIC_REAL NUMERIC_REAL MEMory DATalog STOPtime dlog_stop_time_qry MEMory DATalog THReshold dlog_threshold_value cmd dlog_threshold_val NUMERIC_REAL SINGLE MEMory DATalog THReshold dlog_threshold_value_qry MEMory DELete delete_name_cmd delete_nam file_pin STRING NUMERIC_REAL SINGLE SINGLE MEMory DELete ALL delete_all_cmd MEMory FREE mem_free_qry bytes_avail bytes_used SINGLE SINGLE NUMERIC_REAL NUMERIC_REAL MEMory LOAD BSL bsl_load_cmd bsl_type bsl_fullscale bel name ENUMERIC SINGLE NUMERIC_REAL SINGLE STRING SINGLE MEMory LOAD TSL tsl_load_ cmd tsl_type tsl_fullscale tsl_name ENUMERIC SINGLE NUMERIC_REAL SINGLE STRING SINGLE MEMory LOAD ADIF adif value cmd adif_val STRING SINGLE MEMory RECall recall_value_cmd recall_val NUMERIC_REAL SINGLE K136 Issue No 2 B SCPI Communications Protocol MEMory RECall NEXT recall_next_cmd MEMory RECall recall_value_qry MEMory SAVE file_save_cmd MEMory STORe store_value_cmd store_val store_val_txt MEMory STORe NEXT store_next_cmd store_next_txt MES
61. 5 o Remove any zero offset by pressing the zero key o Select LEAK TEST on the blue mode select keys Four options will now be displayed over the function keys Start F1 Wait F2 Time F3 and Reset F4 The dialogue line of the display will also show the function and the currently set Wait and Time parameters e g Leak Test Wait 00 01 30 Time 00 00 20 The electrical window is also re configured to show e g Pressure Drop Leak Rate o If required press the Wait function key F2 and enter the required wait period in seconds on the numeric keys followed by the ENT key This 4 parameter defines the delay period between the pressing of the Start key and commencement of the measurement period A period of 60 seconds minimum is recommended l o Set up the required test duration period by pressing the Time key and entering the required test duration period on the numeric keys followed by ENT o Close the Vent Valve 2 and using the Hand pump 3 pump up the system pressure to the desired level Use the Volume Adjuster 4 to make fine adjustments of pressure o Press the Start F1 key The instrument display will now indicate Leak Test Running and start the countdown of the Wait period indicated by the Wait period display counting down to zero After termination of the Wait period the Time display commences a countdown from the set period to zero The measuring time of the Test period is indicated by the displa
62. 6 Issue No 2 i gt A 4 DPI 605 User Manual 4 TEST PROGRAM Test programs contain information on the device to be tested the required setup of the instrument for performing the test and the details of the test pressures to be used The Test Program may also contain pass fail criteria for the test Test Programs are transferred to the instrument in the form of a file The structure of the contents of the file is based on the 1992 SCPI Data Interchange Format The contents of the file is shown below e File Name The Test Program file name is made up of three fields o The first is referred to as the File ID and must be 18 characters long padded with spaces if necessary Two spaces separate the first field from the second field o The second field is referred to as the Serial Number and must be 17 characters long padded with spaces if necessary o The last field specifies a 4 digit PIN number which is required to facilitate deletion of the Test Program and any associated Results Files on the instrument if the PIN number is 0 or no PIN number is specified then deletion may be made freely without a PIN number The file name always starts with ADIF and an example is shown below ADIF Test file No 12345 PDCR 93 03 4321 P 9999 This represents a file ID of Test file No 12345 and a serial number of PDCR 93 03 4321 and PIN number 9999 Test Equipment Depot 800 517 8431 99 Washington Street Melrose MA 02176 FAX 781 665 0780
63. 65536 00 NUMERIC_REAL 0 00 1 00e 011 0 00 NUMERIC_REAL B 35 SINGLE 300 00 SINGLE SINGLE SINGLE SINGLE 0 00 SINGLE 0 00 SINGLE 0 00 SINGLE 0 00 SINGLE 0 00 SINGLE 7 50 SINGLE SINGLE 0 00 SINGLE SINGLE SINGLE SINGLE 65536 00 SINGLE 0 00 SINGLE 0 00 K136 Issue No 2 fee B 36 DPI 605 User Manual ENUMERIC PERCent DEVRdng DEVeunits SINGLE DEVPunits calc_form NONE DEVFs Default NONE BOOLEAN calc_stat SINGLE Default OFF SINGLE 0 5000 contrast_value 0 00 NUMERIC_REAL 1 0000 0 5000 ENUMERIC PRESsure current_op_state SINGLE ELECtrical ON Default OFF OFF SINGLE 0 00 current_value 1 00e 011 NUMERIC_REAL 1 00e 011 0 00 NUMERIC_INT 1 SINGLE delete_nam STRING SINGLE disp_string STRING SINGLE display_page_val SINGLE 0 00 8 00 NUMERIC_REAL 0 00 0 00 BOOLEAN display_stat SINGLE Default ON SINGLE display_x 0 00 NUMERIC_REAL 0 00 0 00 NUMERIC_REAL 6 00 display_y SINGLE 0 00 6 00 dlog_init_str STRING SINGLE ENUMERIC NSAMp NE ETPP ESO dlog_init_type SINGLE ELN NSP LSP LSAMp LE ETPN ETEP ETEN ESC ELP Default K136 Issue No 2 B SCPI Communications Protocol dlog_samples_val 0 00 dlog_start_hrs 0 00 dlog_start_mins 0 00 dlog_stop_hrs 0 00 dlog_stop_mins 0 00 dlog_threshold_val 1 00e 010 file_pin 0 00 filter_stat Default
64. 7 8431 99 Washington Street Melrose MA 02176 FAX 781 665 0780 TestEquipmentDepot com NUMERIC_REAL NUMERIC_REAL NUMERIC_REAL NUMERIC_REAL NUMERIC_REAL NUMERIC_REAL DPI 605 User Manual SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE SERIES SINGLE SERIES K136 Issue No 2 B SCPI Communications Protocol B 29 SENSe TEMPerature select_temperature_cmd SENSe VOLTage select_voltage_cmd SENSe PRESsure SENSe PRESsure SENSe PRESsure MODE set_pressure_mode_cmd Select Pressure measurement mode gauge absolute differential p_mode ENUMERIC SINGLE SENSe PRESsure MODE set_pressure_mode_qry Select Pressure measurement mode gauge absolute differential SENSe PRESsure RESolution res_value_cmd res_val NUMERIC_REAL SINGLE SENSe PRESsure RESolution RESet res_reset_cmd SENSe PRESsure RESolution res_value_qry SENSe PRESsure RANGe set_pres_range_cmd pressure_range ENUMERIC SINGLE SENSe PRESsure RANGe set_pres_range_qry SOURce CURRent KMATh Header Suffix 1 1 2 current_analogue_cmd ac_low NUMERIC_REAL SINGLE ac_low_current NUMERIC_REAL SINGLE ac_high NUMERIC_REAL SINGLE ac_high_current NUMERIC_REAL SINGLE SOURce CURRent KMATh Header Suffix 1 1 2 current_analogue_qry SOURce CURRent STATe op_i_state_cmd current_op_state ENUMERIC SINGLE K136 Issue No 2 E Ho B 30 DPI 605 User Manual SOURce CURRent S
65. A BEING USED External transducers ordered as instrument options are delivered terminated with a suitable connector for direct interfacing with the instrument All Druck supplied External Transducers are approved for use with the DPI 605 Two types of external Piezo resistive external transducer may be used with the DPI 605 Digitally Compensated and Non Digitally Compensated Both types plug directly into the Ext Transducer connector Figure 2 7 shows the pin out of the connector K136 Issue No 2 2 14 DPI 605 User Manual 5VD E2 CLK E2 DATA AO Al DVD Temp Sense Diode ve Temp Sense Diode ve OVA Bridge Supply ve Bridge Output ve Bridge Output ve Bridge Supply ve Digitally Characterised Only Figure 2 7 External Transducer Connections 2 1 8 Digital Multimeter Connections Connections to the Voltmeter Milliammeter are made via the connector panel located on the left hand side of the instrument Connections to the instrument are made by means of the supplied test leads 4mm plugs CAUTION IF NOT MAKING USE OF THE TEST LEADS PROVIDED USE LEADS TERMINATED WITH 4 MM SOCKETS FOR PLUGGING INTO THE INSTRUMENT DO NOT PUSH BARE WIRES INTO THE SOCKETS Figure 2 8 shows the connector panel located on the left hand side of the instrument and the connections for Voltage and Current Measurement K136 Issue No 2 2 Installation 2 15 H SWITCH VA OUTPUTS
66. A separate Nicad pack can also be charged by directly plugging the charger power unit into the Lemo connector located on the top of the battery Refer to Section 4 for for details on caring for rechargeable batteries 1 ve 2 Figure 2 3 Power Charger Socket Connections K136 Issue No 2 2 6 DPI 605 User Manual 2 1 5 Battery Removal and Replacement e Check Batiery Status The DPI 605 calibrator and indicator instruments are powered by Alkaline D Cells The battery status can be checked from the Setup menu as follows Select Setup by pressing the Setup key Defaults Battery Select Battery F2 from the Setup menu The battery status Stat N e en will now be indicated e g Battery 8 24 V Good Replace the batteries if Battery Status Poor is reported e Battery Removal and Replacement The battery compartment for both the DPI 605 calibrator and indicator located in the base of the instrument as shown in Fig 2 4 Two types of battery compartment are currently in use in these instruments The following sections cover the battery replacement procedures for each version Earlier Versions to serial number 1606 o ENSURE THAT THE EQUIPMENT IS SWITCHED OFF o Turn the instrument over to expose the battery compartment located in the base refer to Figure 2 4 o Remove the Battery Cover 1 by unscrewing the Captive Screws 2 o Carefully lift out the Battery Pack 3 as it is still connected to
67. CALL DPI 605 User Manual This function configures the instrument to test pressure operated switches When the function is selected and a pressure switch is connected to the instrument the pressure display indicates the applied pressure and the status of the pressure switch contacts e g contacts closed When the output pressure is subsequently increased decreased and the switch contacts change state the display records the event e g Switch contacts opened at 5 bar This function configures the instrument to act as a Data Logger and store alarge number of complete screen displays The Data Log option provides two basic options Record and Replay In addition two Data Log utility options are provided Directory and Delete When the Data Log function has been selected the function keys F1 to F4 are allocatedto the Record Replay Directory and Delete functions respectively This section provides a basic overview of the options Details of the operation of the Data Log facility are given in Section 4 14 K136 Issue No 2 3 Familiarisation 3 29 e Record TheRecord F1 option isusedto store alldata measurands displayed atthe time that the Data Logger is triggered When CH SE the Record option is selected the display reads as follows Will log the current display 9 11 91 Continue Quit When the Continue F1 option is selected two basic facilities are provided o Entry of a reference number file ID number
68. Cc d 2 ie Vent Port 1 2 Vent Valve 3 Hand pump 4 3 a Power 4 Volume Adjuster b Temperature Probe 5 Pressure Port C RS 232 6 System Connector Panel d Ext Transducer Breather Port 7 8 Device Under Test Connector Panel 9 Keyboard Display 0 Reference Port Figure 3 1 DPI 605 Calibrator Controls and Connectors K136 Issue No 2 3 Familiarisation 3 3 3 2 Pneumatics Calibrator Fig 3 1 The DPI 605 pressure calibrator comprises the following items Hand pump 3 Afterthe Vent Valve 2 has been closed this pump is used to create either a pressure or vacuum at the Pressure Port 5 Selection of pressure or vacuum is made from the Instrument Keyboard 9 Volume Adjusier 4 Used to adjust the volume of the output manifold in order to provide fine adjustments of output pressure or vacuum level Pressure Port 5 Pressure connection to the device under test Vent Valve 2 Used to restore the output pressure vacuum to atmospheric pressure Clockwise rotation closes the valve anti clockwise rotation opens the valve Vent Port 1 System pressure vents via an aperture drilled through the centre of a strap Securing Boss 1 Breather Port 7 Permits air to be drawn into or exhausted from the hand pump depending upon whether the instrument is set to the pressure or vacuum mode Reference Port 10 The reference port for the internal sensors is located on the front face of the inst
69. D CER13 Continue Figure 4 6 Typical Event Mode Summary Screens 4 41 Example 1 After Continue F1 has been pressed willlog every time the external switch contacts connected between sockets A and B open Logging sequence is terminated by pressing the Stop F4 key Example 2 After Continue F1 has been pressed will perform a single shot logging operation when the measured electrical signal rises through 12 mA A File Closed message is displayed to indicate that the logging operation has terminated Example 3 After Continue F1 has been pressed will log every time a negative going edge applied between terminals A ve and D ve occurs The logging sequence is terminated by pressing the Stop F4 key K136 Issue No 2 4 42 DPI 605 User Manual 4 15 2 Data Log Record Operations Contd Data Log Parameters Start at 16 00 Stop Single Shot File ID CER14 Continue Data Log Parameters Start N A Stop Single Shot File ID CER15 Continue Logging Trigger Logging Trigger Threshold 10 2500 bar Example 4 After Continue F1 has been pressed will perform a single shot logging operation at the programmed time 16 00 A File Closed message is then displayed to indicate that the logging operation has terminated Example 5 After Continue F1 has been pressed will perform a single shot logging operation when the recorded pressure
70. DPI 605 User Manual DPI 605 PRECISION PORTABLE PRESSURE CALIBRATOR Test Equipment 99 Washington Street Depot Melrose MA 02176 Fax 781 665 0780 1 800 517 8431 TestEquipmentDepot com DPI 605 Precision Portable Pressure Calibrator K136 Issue No 2 ii DPI 605 User Manual SAFETY The Manufacturer has designed this product to be entirely safe when operated correctly e Please pay close attention to the Safety Instructions outlined on this page and elsewhere in this manual They have been designed to protect the User from personal injury and the equipment from damage means of a hazard warning triangle Specific warnings relating to each section of the manual are given at the beginning of that section i e Potentially hazardous operations are indicated in the text by e Please observe the installation advice and any operational limitations given in this manual e This equipment must only be used for the purpose for which it was designed Media Compatibility This equipment is designed to be used with the following media Calibrator Gas containing condensing liquid both non corrosive Indicator Media compatible with stainless steel CAUTION DO NOT USER ANY OTHER MEDIA WITHOUT FIRST CONSULTING DRUCK LIMITED Pressure Safety DO NOT ALLOW pressures greater than the Safe Working Pressure to be applied to the instrument The specified Safe Working Pressure for the instrument is stated in the Specification sect
71. ECALL AUTOCAL o vin 2 C 4 5 e 7 g C DEL ENT K136 Issue No 2 B SCPI Communications Protocol B 17 For example SYSTEM KEY SETUP F4 is the equivalent of pressing the Setup key followed by the F4 key SYSTEM ERROR returns the last error message to be placedin the error queue andremovesitfrom the queue The error queue retains the most recent five errors If the queue overflows then a queue overflow error message is added to the queue as the sixth entry in the queue e STATUS is a command provided by SCPI which is essentially only relevant where connection to the instrument is made in IEEE 488 style not RS 232 fee This command should not therefore be used e UNIT PRESSURE provides the ability to set the pressure display to one of the following units torr atm psi F2 lb ft2 inHg inH2O inH204 For example UNIT PRESSURE TORR would configure the instrument to display pressure in Torr UNIT PRESSURE SFACTOR provides the ability to set the scaling factor for the special pressure unit K136 Issue No 2 B 18 DPI 605 User Manual UNIT TEMPERATURE provides the ability to set the temperature measurement to be displayed in C or F For example UNIT TEMPERATURE F would configure the instrument to display temperature in F e Special Commands These commands begin with an asterisk instead of
72. EMORY LOAD file name Uploads a file from the DPI 605 to a host computer The file name has to be identical to the name stored in the instrument including spaces File are sent in the SCPI data block file format e g To upload a Test Program MEMORY LOAD TESTING AT DRUCK SN 12345 K136 Issue No 2 i gt A 8 DPI 605 User Manual To upload a corresponding Results File MEMORY LOAD TESTING AT DRUCK SN 12345 gt T Deleting Results Files and Test Programs MEMORY DELETE file name pin protection Files are deletes by issuing the above command If the incorrect pin protection number is sent the file is not deleted and an error is placed in the SCPI error buffer Files with no pin protection should be deleted with a pin protection number of 0 MEMORY DELETE TESTING AT DRUCK SN 12345 9999 MEMORY DELETE ALL This command should be used with caution since all files stored in the instrument Data Log AutoCal Test AutoCal results are deleted Directory listing MEMORY CATLOG ALL Sends a directory listing of all the files in the DPI 605 MEMORY CATLOG TEST Sends a directory listing of all the AutoCal test procedure files in the DPI 605 MEMORY CATLOG AUTOCAL Sends a directory listing of all the AutoCal test results files in the DPI 605 MEMORY CATLOG DATALOG Sends a directory listing of all the Data Log files in the DPI 605 The data comes back as DIR TESTING ATDRUCK SN 12345
73. Exit Menu key to return to the Set up menu The On F3 and Off F4 keys are used to enable or disable the output as follows On Switches the electrical output ON The electrical window ofthe display now divides into two sub sections to give the currently selected DMM display in the upper section and the electrical output conversion status e g Temperature to Current in the lower section It should be noted that when the electrical output is enabled the output power is sourced from the instrument s internal battery and will therefore increase the battery s rate of discharge Off Switches the electrical output to OFF The lower section of the electrical display the electrical output section will indicate OFF when this control has been operated When the instrument is powered up the electrical output will always be switched off i e if it was enabled when the instrument was turned off it will need to be re enabled after switch on K136 Issue No 2 3 Familiarisation 3 19 o Programmable Output rn This option ofthe Electrical Output function menu is used Cours m J to select the output of either a programmable d c voltage or current Typical uses of this facility are as an excitation supply for a transducer 20 mA current loop source or sink and as a precision reference supply Used as a voltage source the instrument can supply a maximum current of 50 mA at 24 V When used as a current source the instrument can p
74. HT SMTH AUTO LEAK TEST _CAL_ TEST DATA STORE RE LOG CALL 3 11 2 Display Light up DISPLAY ON SET UP LICHT SMTH AUTO LEAK TEST _CAL U TEST DATA STORE RE LOG CALL 3 11 3 Set up D ON SMICH AUTO f LEAK TEST JL CAL_ TEST DATA STORE RE LOG CALL e Defaults This toggle action key is used to switch the instrument ON or OFF The instrument can be programmed to switch itself off after a defined period of inactivity i e no key presses by means of the set up facility It should be noted that during Data Logging and Leak Testing the Auto Power off facility is disabled The default setting for the Auto Power off facility is 30 min This toggle action key is used to switch the display panel back light ON and OFF The instrument can be programmed to turn the back light off after a defined period under the set up facility The default setting is 5sec Prolonged use of the back light will reduce battery life Used to set up the instrument default settings battery status and cal test and functions This function is used to set up the following functions o Units Function used to select default units for the Pressure and Temperature measurands K136 Issue No 2 3 Familiarisation E Pressure DISPLAY ON SET UP LIGHT SMTH AUTO LEAK TEST _ ON TEST DATA STORE RE LOG CALL 3 21 Used to select the pressure units assigned to function keys F1 F2 F3
75. ITTEN TO SOFTWARE VERSION 3 XX ONLY The information in this publication includes operating details for software at Version 3 XX During the power up routine the instrument displays the software versionnumber Any operational changes due to revision of the software will be covered in a new issue of this publication K136 Issue No 2 Contents et Set Roh 3 SA ee OR RL RER NN 1 B amp D CH INTRODUCTION DEE 1 1 General 1 2 APPIICATIONS Heer el desseceed tea ten 1 3 Jill EE ee e EE 1 4 Equipment ACCOSSOrIBS idees sun nennen han en 1 7 FUNCTIONAL DESCRIPTION ire 2 1 lafe UE ele EE 2 4 Input Output Connections nn 2 4 Pressure Connection Ssi aeri riaient 2 4 Electrical Connections rrsan enred rentei en aR aE SENi era Ta 2 5 Power Charger Connections nen 2 5 Battery Removal and Peplacement nn 2 6 Communication Interface Connechons nenn 2 12 Conection of External Transducerg 2 13 Digital Multimeter Connectons 2 14 Electrical Input Output Connections nenne 2 16 Temperature Probe Connections 2 17 FAMIEIARISATION it ee EES 3 1 Equipment Controls Indicators and Connectors cccccceeseeeeeeteeeesteeeeees 3 1 Sin tun EE 3 3 Electrical Connections nn 3 6 BEE 3 7 SEA 10 Jo o E E 3 8 fleien 3 9 Numenc Keys nn u nd nr na en es 3 10 Pressure Key F nctions 4 2 22 ame 3 10 Electrical InputKey F nctions u ne 3 12 Electrical Output Key Functions nennen 3 15 Mode Select Key
76. Issue No 2 B SCPI Communications Protocol B 15 selects temperature as the electrical measurand SENSE VOLTAGE selects voltage as the electrical measurand SENSE CURRENT selects current as the electrical measurand SENSE PRESSURE RESOLUTION is used to set the resolution of the pressure display defined by the number of decimal places SENSE PRESSURE RANGE is used to select the pressure range to be displayed One of three may be specified INTERNAL EXTERNAL or ATMOSPHERIC For example SENSE PRESSURE RANGE ATMOSPHERIC would select the Barometric Reference for display SENSE PRESSURE MODE is used to select the pressure mode as either Gauge Differential or Absolute For example SENSE PRESSURE MODE GAUGE K136 Issue No 2 E Ho B 16 DPI 605 User Manual would select the current pressure range as gauge if available e SYSTEM provides access to various functions SYSTEM KEY is used for key press simulation and is followed by one or more of the key names below in single or double quotes More than one key press can be achieved simultaneously by stringing key names together separated by a comma Rok ES F3 F4 EXIT RANGE UNITS LIMITS PPROCESS ZERO VOLTS MA TEMP EPROCESS VOLTSOUT MAOUT LIGHT SETUP DATALOG LEAKTEST SWITCHTEST PV STORE R
77. Log Replay Operations ccceeceeceeeceeeeeeeeeeeeeeeeeeeesseeeeaeeseateneneesnees 4 43 4 16 U se of AutoGaliF ciliiy 2 2 ee 4 46 4 16 1 Use of the AutoCal Directory and Delete Utilities 4 47 4 16 2 AutoCal Manual Operations eecceeeceeeeeeeeeeeeeeeeeeeeeneeseaeeeeeeeeeeseaeeeeetes 4 49 4 16 3 Replay of AutoCal Log Files ss 4 52 4 16 4 Auto AutoGal Procedures 2 2 4 55 4 17 Us of the RS EE 4 57 Connection to a Printer sisi 4 57 Connection to a Computer nn 4 58 Upload re a een 4 58 REI UE 4 58 4 18 Memory Reset Option ege ala 4 59 4 19 De contamination Procedures ernennen ernennen 4 60 4 19 1 Flushing the Instrument s Pneumatic System usuunnseesseensennsnnnnnenn 4 61 5 0 APPLICATIONS EE 5 1 5 1 Fomm ot KEE 5 1 6 GALIBRATIION u He des Eed 6 1 6 1 Selection of New P I N Number AAA 6 2 6 2 Instrument Calibration Pressure eecceceeeeeeeeeeeeeeeeeeeeeeeeeseeeeeaeesneeteeeeeees 6 3 6 3 Calibration of an External Pressure Transducer seseseeeseeeeerrerrerrerrreeeeee 6 7 6 3 1 Two Point Calibrations A 22 2 6 8 6 3 2 Linearity Multiple Point Gal 2 0 een 6 9 6 3 3 Temperature Compensation nen 6 10 6 3 4 External Transducer Parameter Entry 6 11 APPENDIX A ana er a Lan nase sa ehe AutoCal APPENDIX By sin een SCPI Communications Protocol K136 Issue No 2 viii Abbreviations NOTE Abbreviations are the same in the singular and plural ac atm C F COM cm2 contd d
78. NOTE On earlier DPI 605 instruments the Print Screen facility requires the ENT and 9 keys to be pressed simultaneously K136 Issue No 2 4 14 DPI 605 User Manual 4 5 5 Pressure Display Resolution The display resolution can depending upon the range selected be set up to give a maximum of 6 digits To select the required resolution proceed as follows SET UP 5000 HOO0 0 00e og GE Defaults Battery Status Cal Test Units Comms Clock More Printer Contrast Auto Off More Resolution On State On Off Switch the instrument ON Press the SET UP key Select Defaults F1 from the Set up menu Select More F4 to gain access to second level of defaults Select More F4 to gain access to third level of defaults Select Resolution F1 option In response to the prompt e g Pressure display resolution dp s 5 Enter the required number of digits by using the Up F1 and Down F2 keys The display will round to the number of significant figures set NOTE The Pressure display resolution is set for a specific combination of Pressure Units and Range If either the Units or Range are subsequently changed the Resolution previously set for those units and range will be recalled K136 Issue No 2 4 Operation 4 5 6 Change On State 4 15 The DPI 605 is shipped with its Restore Last Set up set to ON In this state any programmed functions e g Process function will
79. NT COVER LOCATED ON THE UNDERSIDE OF THE INSTRUMENT N WHEN FITTING ALKALINE BATTERIES IN PLACE OF THE REPLACE ALL SIX CELLS AT THE SAME TIME General This section which describes the use of the DPI 605 instrument has been structured on a functional basis The DPI 605 calibrator can generate and indicate pressures up to 20 bar gauge The instrument s primary pressure indicator range limited to 20 bar gauge 21 bar absolute with the barometric option can be extended to 700 bar by the use of external transducers The DPI 605 Indicator can indicate pressures up to 350 bar gauge with barometric option fitted Its operating range can be extended to 700 bar by means of external transducers In addition to the pressure generation facility both the calibrator and indicator instruments can generate electrical output voltages and currents These electrical outputs can be programmed to any level within the range of the instrument or be linearly related to any measurand programmable to a user defined straight line K136 Issue No 2 4 2 4 2 1 4 3 DPI 605 User Manual A digital multimeter DMM comprising an auto ranging 0 50 V d c voltmeter and single range 0 55 mA milli ammeter is built into the instrument to permit the monitoring of voltage and current signals The instrument has a temperature measurement facility using an optional external PT 100 platinum resistance probe An RS 232 interface is also provi
80. NUMERIC_REAL SINGLE percent_fs NUMERIC_REAL SINGLE CALCulate KMATh PERCent Header Suffix 2 1 1 percent_qry CALCulate PEAK DATA Header Suffix 2 1 1 peak_data_qry peak_data_high NUMERIC_REAL SINGLE peak_data_low NUMERIC_REAL SINGLE K136 Issue No 2 fee B 22 DPI 605 User Manual CALCulate PEAK STATe Header Suffix 2 1 1 peak_state_cmd peak_stat BOOLEAN SINGLE CALCulate PEAK STATe Header Suffix 2 1 1 peak_state_qry CALCulate STATe Header Suffix 2 1 calc_state_cmd calc_stat BOOLEAN SINGLE CALCulate STATe Header Suffix 2 1 calc_state_qry DISPlay CONTrast Header Suffix 4 1 contrast_cmd contrast_value NUMERIC_REAL SINGLE DISPlay CONTrast Header Suffix 4 1 contrast_qry DISPlay LIGHt TIMeout TIME Header Suffix 4 1 1 1 time_value_cmd time_val NUMERIC_REAL SINGLE DISPlay LIGHt TIMeout TIME Header Suffix 4 1 1 1 time_value_qry DISPlay LIGHt TIMeout STATe Header Suffix 4 1 1 1 timeout_state_cmd timeout_stat BOOLEAN SINGLE DISPlay LIGHt TIMeout STATe Header Suffix 4 1 1 1 timeout_state_qry DISPlay LIGHt STATe Header Suffix 4 1 1 light_state_cmd light_stat BOOLEAN SINGLE DISPlay LIGHt STATe Header Suffix 4 1 1 light_state_qry K136 Issue No 2 B SCPI Communications Protocol DISPlay STATe Header Suffix 4 1 display_state_cmd display_stat BOOLEAN DISPlay STATe Header Suffix 4 1 display_state_qry DISPlay WINDow GRAPhics STATe
81. Nit FS Default PUNit acal_leak_error 1 00e 011 acal_time 1 0000 acal_tsl_dev 1 00e 011 acal_tsl_fs 1 00e 011 acal_tsl_type EUNit FS Default PUNit 359999 00 TYPE vdeft NUMERIC_REAL 1 00e 011 0 00 NUMERIC_REAL 1 00e 011 0 00 NUMERIC_REAL 1 00e 011 0 00 NUMERIC_REAL 1 00e 011 0 00 NUMERIC_REAL 1 00e 011 0 00 NUMERIC_REAL 1 00e 011 0 00 ENUMERIC RDG PUNit NUMERIC_REAL 1 00e 011 0 00 NUMERIC_REAL 60 00 NUMERIC_REAL 1 00e 011 0 00 NUMERIC_REAL 1 00e 011 0 00 ENUMERIC RDG PUNit vreset SINGLE 0 00 SINGLE 0 00 SINGLE 0 00 SINGLE 0 00 SINGLE 0 00 SINGLE 0 00 SINGLE SINGLE 0 00 SINGLE 60 00 SINGLE 0 00 SINGLE 0 00 SINGLE K136 Issue No 2 B SCPI Communications Protocol acal_wait 1 0000 acc_str adif_val alarm_stat Default OFF alarm_value 1 00e 011 av_high_volts 1 00e 011 1 006 011 av_low_volts 1 00e 011 bsl_fail_str bsl_fullscale 1 00e 011 RDG FS Default PUNit bytes_avail 0 00 bytes_used 0 00 calc_data_value 1 00e 011 65536 00 65536 00 NUMERIC_REAL 359999 00 300 00 STRING STRING BOOLEAN NUMERIC_REAL 1 00e 011 0 00 NUMERIC_REAL 1 00e 011 0 00 NUMERIC_REAL 1 00e 011 0 00 NUMERIC_REAL 1 00e 011 0 00 NUMERIC_REAL 1 00e 011 0 00 NUMERIC_REAL 10 00 7 50 STRING NUMERIC_REAL 1 00e 011 0 00 STRING STRING ENUMERIC EUNit NUMERIC_REAL
82. O MMHG MPA PA PSI SPECIAL TORR BAR Default BAR K136 Issue No 2 E fee B 40 DPI 605 User Manual ENUMERIC ATMospheric pressure_range SINGLE INTernal EXTernal Default INTERNAL SINGLE 0 00 pressure_value 1 00e 011 NUMERIC_REAL 1 00e 011 0 00 SINGLE 1 0000 printer_val 1 0000 NUMERIC_REAL 99 00 1 0000 SINGLE 0 00 protect_level 1 00e 011 NUMERIC_REAL 1 00e 011 0 00 pv_source ENUMERIC PRESsure VACuum Default PRESSURE SINGLE recall_stat BOOLEAN SINGLE Default OFF SINGLE 1 0000 recall_val 1 0000 NUMERIC_REAL 20 00 1 0000 SINGLE 5 00 NUMERIC_REAL 5 00 SINGLE 0 00 ScaleFactor 0 00 NUMERIC_REAL 1 00e 009 1 0000 second NUMERIC_INT 0 0 0 SINGLE NUMERIC_INT 0 0 SINGLE BOOLEAN SINGLE Default OFF SINGLE StatOperEnab 0 0 0 NUMERIC_INT StatQuesEnab NUMERIC_INT 0 65535 0 0 SINGLE StatusEnable NUMERIC_INT 0 0 0 SINGLE store_next_txt STRING SINGLE K136 Issue No 2 B SCPI Communications Protocol B 41 store_val NUMERIC_REAL SINGLE 1 0000 20 00 1 0000 1 0000 store_val_txt STRING SINGLE switch_para STRING SERIES switchtest_stat BOOLEAN SINGLE Default OFF tare_value NUMERIC_REAL SINGLE 1 00e 011 1 00e 011 0 00 0 00 temp_units ENUMERIC SINGLE C F CEL Default temperature_value NUMERIC_REAL SINGLE 1 00e 011 1 00e 011 0 00 0 00 text_state BOOLEAN SINGLE Default ON text_string STRING SINGLE
83. OFF fkunits ATM FTH204 INHG LB FT2 MMH20 Default BAR flow_state Default OFF Default goto_limit 1 00e 011 goto_value 1 00e 011 graphics_state Default ON CMH2O HPA KG CM2 MBAR MMHG PSI SPECIAL NUMERIC_REAL 9999 00 0 00 NUMERIC_REAL 23 00 0 00 NUMERIC_REAL 59 00 0 00 NUMERIC_REAL 23 00 0 00 NUMERIC_REAL 59 00 0 00 1 00e 010 0 00 NUMERIC_REAL 9999 00 0 00 BOOLEAN SUFFIX_DATA CMHG INH2O KG M2 MH2O MPA TORR BOOLEAN ENUMERIC F4 Fi NUMERIC_REAL 1 00e 011 0 00 NUMERIC_REAL 1 00e 011 0 00 BOOLEAN NUMERIC_REAL B 37 SINGLE 0 00 SINGLE 0 00 SINGLE 0 00 SINGLE 0 00 SINGLE 0 00 SINGLE 0 00 SINGLE 0 00 SINGLE SINGLE FTH20 INH204 KPA MHG PA BAR SINGLE SINGLE SINGLE 0 00 SINGLE 0 00 SINGLE K136 Issue No 2 Wie B 38 Test Equipment Depot 800 517 8431 99 Washington Street Melrose MA 02176 NUMERIC_INT 0 info_string STRING key_string STRING leak_para STRING leaktest_stat BOOLEAN Default OFF leaktime_hrs 0 00 99 00 0 00 leaktime_mins 0 00 leaktime_secs 0 00 59 00 0 00 light_stat BOOLEAN Default OFF lower_electrical 1 00e 011 1 00e 011 lower_pressure 1 00e 011 1 00e 011 STRING NUMERIC_INT 0 NUMERIC_INT 1 note_string STRING op_current_value 0 00 55 00 0 00 op_value 0 00 60 00 0 00 op_voltage_value 0 00 24 00 0 00 D ENUMERIC ABS
84. Ratio F3 options provide facilities for adjusting the calibration of all the measurement ranges within the instrument Note The instrument can be fitted with an internal CAL LINK If this link is fitted the instrument s calibration is protected Subsequent selection of either Pressure F1 Electrical F2 or Ratio F3 will result in the display of a status message and access to that function will be denied e g Cal Disabled Please Remove Cal Link When fitted the Cal Link may be sealed by a Quality Assurance seal which if broken invalidates the instrument s calibration e The Pressure F1 option provides access to the calibration adjustment of the pressure ranges of the instrument The ranges are internal made up of Internal 1 used by the instrument to measure pressures in the range 2 to 20 bar and Internal 2 used by the instrument to measure pressures from 1 to 2 bar Barometer if the option is fitted and External K136 Issue No 2 EE 6 4 DPI 605 User Manual For Internal 1 Internal 2 and External three types of adjustment are possible o Linearity Used to provide linearity correction of the pressure reading A minimum of 5 points must be entered over the appropriate pressure range e g 1 to 2 bar for Internal 2 The procedure takes the form of applying precisely known pressures and entering the pressures via the key pad Inthe case of Internal 1 or Internal 2 Positive pressures are applie
85. S autocal_mess_cmd mess_str NOTE note_cmd note_string PT autocal_point_cmd point_value point_limit READ BATTery bat_value_qry bat_val READ CURRent read_current_qry current_value READ OUTPut output_qry op_value READ TEMPerature read_temperature_qry temperature_value READ VOLTage read_voltage_qry voltage_value READ PRESsure read_pressure_qry pressure_value B 27 NUMERIC_REAL SINGLE STRING SINGLE STRING SINGLE STRING SINGLE STRING SINGLE SINGLE SINGLE NUMERIC_REAL NUMERIC_REAL NUMERIC_REAL SINGLE NUMERIC_REAL SINGLE NUMERIC_REAL SINGLE NUMERIC_REAL SINGLE SINGLE NUMERIC_REAL NUMERIC_REAL SINGLE K136 Issue No 2 E Ho B 28 SENSe CURRent select_current_cmd SENSe LEAKtest RESet leaktest_reset_cmd SENSe LEAKtest STATe leaktest_state_cmd leaktest_stat BOOLEAN SENSe LEAKtest STATe leaktest_state_qry SENSe LEAKtest TIME leaktime_value_cmd leaktime_hrs leaktime_mins leaktime_secs SENSe LEAKtest TIME leaktime_value_qry SENSe LEAKtest WAIT wait_value_cmd wait_hrs wait_mins wait_secs SENSe LEAKtest WAIT wait_value_qry SENSe LEAKtest leaktest_value_qry leak_para SENSe SWITchtest RESet switchtest_reset_cmd SENSe SWITchtest STATe switchtest_ state cmd switchtest_stat BOOLEAN SENSe SWITchtest STATe switchtest_state_qry SENSe SWITchtest switchtest_value_qry switch_para Test Equipment Depot 800 51
86. SSURE would return READ PRESS lt value gt It should be noted that the returned command string always contains all default commands and also that the returned commands are in short form see Section 3 of this Appendix Command Tree for an explanation of short form and default commands The returned message is always ended with carriage return and line feed characters Commands are executed immediately upon receipt of a line feed character ASCII code 10 Several commands are typically strung together to achieve a certain objective For example READ PRESSURE causes the current pressure reading to be returned by the instrument as seen above Note that no spaces are included anywhere in the command string Forsome commands values have to be included within the command For example to set the programmable voltage output to 5 Volts the following command would be used SOURCE VOLTAGE 5 K136 Issue No 2 B SCPI Communications Protocol B 5 Where numbers are to be specified they are preceded by a space and may be in any format So all the following are acceptable SOURCE VOLTAGE 5 SOURCE VOLTAGE 5 0 SOURCE VOLTAGE 0 5e1 COMMAND TREE The following commandtree lists all the commands which the instrument understands in a structured way Commands shown in rounded boxes are those which have values associated with them even if the value is simply ON or OFF These commands can always be ended with a questi
87. TATe op_i_state_qry SOURce CURRent LEVel SOURce CURRent LEVel lMMediate SOURce CURRent LEVel lMMediate AMPLitude current_output_cmd op_current_value NUMERIC_REAL SINGLE SOURce CURRent LEVel IMMediate AMPLitude current_output_qry SOURce VOLTage KMATh Header Suffix 1 1 2 volts_analogue_cmd av_low av_low_volts av_high av_high_volts SINGLE SINGLE SINGLE SINGLE NUMERIC_REAL NUMERIC_REAL NUMERIC_REAL NUMERIC_REAL SOURce VOLTage KMATh Header Suffix 1 1 2 volts_analogue_qry SOURce VOLTage STATe op_v_state_cmd voltage_op_state ENUMERIC SINGLE SOURce VOLTage STATe op_v_state_qry SOURce VOLTage LEVel SOURce VOLTage LEVell IMMediate SOURce VOLTage LEVel IMMediate AMPLitude voltage_output_cmd op_voltage_value NUMERIC_REAL SINGLE SOURce VOLTage LEVel IMMediate AMPLitude voltage_output_qry SOURce PRESsure SOURce PRESsure LIMit STATe alarm_state_cmd alarm_stat BOOLEAN SINGLE K136 Issue No 2 B SCPI Communications Protocol B 31 SOURce PRESsure LIMit STATe alarm_state_qry SOURce PRESsure LIMit AMPLitude alarm_limit_cmd alarm_value NUMERIC_REAL SINGLE SOURce PRESsure LIMit AMPLitude alarm_limit_qry SOURce PRESsure PROTection LEVel protection_cmd protect_level NUMERIC_REAL SINGLE SOURce PRESsure PROTection LEVel protection_qry SOURce PRESsure PV source_pv_cmd pv_source ENUMERIC SINGLE
88. TESTING AT DRUCK SN12345 gt 1 MEM CAT ALL K136 Issue No 2 A AutoCal A 9 7 AUTOCAL COMMAND DEFINITIONS The commands detailed below are AutoCal commands They may be used in AutoCal Test Programs to make the instrument do specific things and also prompts the operator to carry out specific operations When a Test Program is executed on the instrument each individual command is executed in order until no more commands remain Many commands detailed below put text on the display of the instrument The most common location for this information is the next to bottom line of the display called the display message line referred to as the DML e MESS argument This command has 1 mandatary argument o The argument is a string of up to 40 ASCII characters Execution of the command results in the string being displayed on the DML Continue is also displayed over the F1 key and the execution of the Test Program is halted until F1 is pressed When F1 is pressed the string and Continue both disappear and execution of the Test Program continues The displayed message does not appear on any print out upload or SCPI upload e PTargi arg2 This command has 2 mandatary arguments o The first argument is a pressure value in the units as selected in the Setup Block o The second argument is a tolerance on the pressure value in the same units Execution of the command results in Go To being displayed at the beg
89. The Event Switch option is used to select the operation of an external switch connected between the A B terminals to trigger the Data Log operation A choice of normally closed Wait Switch Closed or normally open Wait Switch Open is provided In either of the Switch modes the selected Log operation is initiated every time the switch contacts change state The Data Logging operation is then manually terminated when the Stop F4 key is pressed Logic The Logic option is used to trigger the selected Data Logging operation on receipt of a trigger pulse level 5 to 30 V d c which is applied between the A and B or D terminals of the instrument A choice of either positive or negative logic positive going or negative going pulse is provided The Data Logging operation is then manually terminated when the Stop F4 key is pressed Threshold The Threshold option is used to initiate a one shot Data Log sequence when either the pressure measurement or the selected electrical input volts mA or Temp measurement passes a preset operator programmable level For each type of measurand the direction through the preset threshold either positive or negative i e rising or falling can be selected The Data Logging operation then terminates when the Stop F4 key is pressed When all the required Event Data Log parameters have been defined a summary screen written for the display e g K136 Issue No 2 3 Familiarisa
90. Under Test Connector Panel 9 Keyboard Display 0 Reference Port Figure 4 1 DPI 605 Instrument Controls and Connectors Calibrator K136 Issue No 2 4 18 4 6 1 DPI 605 User Manual Set Pressure Alarm and Safety Limits To set up the Alarm and Safety Limits and assuming the instrument to be switched ON proceed as follows e Alarm Limit LIMITS o Press the LIMITS key located on the pressure key pad o Safety o Select the Alarm function key F1 from the Pressure Limits Select menu The current alarm level setting together with its status will now be indicated e g Alarm Limit Off Value 18 000 bar On Off o Enter the required alarm level on the numeric key pad and press ENT o Enable the alarm by pressing the On F3 key Conversely disable the alarm by pressing the Off F4 key Safety Limit Mrs o Press the LIMITS key located on the pressure key pad o Alarm o Select the Safety function key F2 The current Safety Limits setting will now be indicated e g Safety Limit 14 45000 bar o Enter the required Safety Limit on the numeric key pad and press ENT Once set the Safety Limitis always active and on calibration versions will cause pump blocking to occur thereby preventing further system pressurisation when the Safety Limit threshold is reached A continuous audible alarm is also given To cancel the alarm and release pump blocking press the Exit Menu key Note that until the system pressur
91. a colon They are called common commands by the SCPI standard Of the 10 standard common commands shown in the Command Tree only two are usefully implemented in the DPI 605 o IDN This returns a string identifying the manufacturer of the instrument the instrument type its serial number and its software version number o RST This command resets the instruments display to the default condition i e displaying the main Internal Pressure Range on the left hand side of the display and the Ammeter on the right No processing functions are activated and the programmable outputs are de activated 5 EXAMPLE USE OF COMMANDS The following example provides the commands to do the following Set the instrument to read barometric pressure Set the pressure units to mbar Select the ammeter for the electrical measurement Set the programmable voltage output to 24 Volts Turn on the programmable voltage output Request a reading of pressure Request a reading of current 0000000 Test Equipment Depot 800 517 8431 99 Washington Street Melrose MA 02176 FAX 781 665 0780 TestEquipmentDepot com K136 Issue No 2 B SCPI Communications Protocol B 19 The response from the instrument are shown in italic SENSE ATMOSPHERIC lt LF gt UNIT MBAR lt LF gt SENSE CURRENT lt LF gt SOURCE VOLTAGE 24 lt LF gt SOURCE VOLTAGE STATE ON lt LF gt READ lt LF gt READ PRES 993 85 lt CR gt lt LF gt READ CURRENT READ CURR 0
92. al o Example 2 SCPI upload of Result File ADIF Druck PTX500 9876543221 gt 1 P 0 STD VERSION 1990 0 IDENTIFY DATE 18 03 93 TIME 13 54 17 DUTCH DEVICE_TYPE GAUGE FULLSCALE 7 00000 DIMENSION PRESSURE TYPE EXPLICIT UNITS bar TRANSDUCER _FS 20 00000 TRANSDUCER_TYPE GAUGE DIMENSION ELECTRICAL TYPE EXPLICIT UNITS mA FLOW ON DIMENSION VOLTSOUT TYPE EXPLICIT UNITS VOLTS DIMENSION TIMESTAMP TYPE EXPLICIT DATA ACAL VALUES 0 00005 24 000 13 54 50 0 00005 24 000 13 54 51 0 00005 24 000 13 54 52 0 00005 24 000 13 54 53 0 00005 24 000 13 54 54 INFO TSL Results INFO Rslt 0 095 Spec 0 15 mA PASS INFO Ofst 5e 94 mA Grad 1e 99 mA bar K136 Issue No 2 B SCPI Communications Protocol APPENDIX B SCPI COMMUNICATIONS PROTOCOL B 1 K136 Issue No 2 E fee B 2 DPI 605 User Manual INTRODUCTION The instrument s RS 232 port provides for connection of a printer and also for connection of acomputer When the instrument is connected to a printer printing is initiated by pressing a key onthe instrument The data transmitted as a result is ASCII text formatted to suit most printers The only exception to this is the screen print facility which uses graphics mode to suit the DPI 605 optional printer and therefore may not suit all printers When the instrumentis connected to a computer bi directional transfer of data
93. alibrator form the DPI 605 can generate and indicate pressures up to 20 bar gauge The instrument s primary pressure range 20 bar gauge 21 bar absolute with the barometric option can be extended to 700 bar by the use of external transducers A digital multimeter DMM is built into the instrument to permit the independent monitoring of voltage and current signals The instrument has a temperature measurement facility using an external PT100 platinum resistance probe An RS 232 interface is also provided In addition to the pressure generation facility the instrument can generate electrical output voltages and currents These electrical outputs can be programmed to any level within the range of the instrument or be linearly related to any measurandi e pressure voltage current or temperature the relationship being programmable by the user The intrinsically safe versions of the instrument can only be powered by alkaline batteries The DPI 605 rack mounted model is mains powered K136 Issue No 2 1 Introduction 1 3 1 2 Applications The DPI 605 calibrator is primarily used for calibrating transducers and systems overtheranges 1 to 20 bar gauge With the barometric option fitted the instrument is capable of reading absolute pressures in the range 0 to 21 bar absolute Used in conjunction with external transducers the range of the instrument can be extended to 700 bar Typical calibration applications are as follows
94. ample 1 Print of Results File Calibration Certificate Test Equipment DPI 605 Serial No 0 DPI 605 S W Version 2 00 Pressure Range 20 0 Bar Device Under Test File ID ABCDEFGHIJKLMNOPQR Serial No 1234567890 1234567 gt 1 Date 16 03 93 Time 15 39 36 Device Type gauge DUT Full Scale 10 00000 TEST PROG COMPILED WITH 605 FILE MANAGER NOTE Please enter your employee No 171 NOTE Enter ambient temperature 21 Leaktest Results End Pressure 0 0004 psi Start Pressure 0 0003 psi Pressure Drop 0 0001 psi Leak Rate 0 0007 psi min Spec 0 0100 psi min PASS BSL Results Rslt 0 0059 Spec 0 1 FS PASS Ofst 2 8e 05 V Grad 0 071 V psi Test Results PRESSURE ELECT VOLT O P TIME psi V V 0 0005 0 00002 5 000 15 40 19 0 0004 0 00001 5 000 15 40 20 0 0003 0 00001 5 000 15 40 22 0 0004 0 00001 5 000 15 40 24 0 0004 0 00001 5 000 15 40 25 0 0005 0 00001 5 000 15 40 27 0 0005 0 00005 5 00015 40 28 0 0004 0 00004 5 00015 40 29 Printed 10 26 09 17 03 93 Authorised K136 Issue No 2 A AutoCal A 19 o Example 1 Upload of Results File Calibration Certificate Test Equipment DPI 605 Serial No 0 DPI 605 S W Version 2 00 Pressure Range 20 0 Bar Device Under Test File ID ABCDEFGHIJKLMNOPQR SerialNo 12345678901234567 gt 1 Date 16 03 93 Time 15 39 36 Device Type gauge DUT Full Scale 10 00000 TEST PROG COMPILED WITH 605 FILE MANAGER NOTE Please enter your employee No 171 NOTE
95. ation e Connection to a Printer The optional printer for the DPI 605 is a 40 column battery portable device It is typically used for obtaining hard copy of test results or data logged files The printer is supplied complete with a lead to connectitto the instrument s RS 232 port Ifthe instrument s RS 232 portis to be used for connection to the optional printer then the following RS 232 parameters must be set All are to be found under the SET UP Comms function full details of the use of the comms port SET UP is given in Section 4 5 3 Baud Rate 9600 Parity None Handshaking Both Also under SET UP Defaults Printer the DRUCK 40 COL Printer must be selected Astandard 80 column printer may be used 80 column should be selected under SET UP Defaults Printer and the parameters of the RS 232 port must be configured to suit the particular printer in use What ever printer is used printing is initiated by key press from within the operating modes of the instrument which facilitate the printing out of files of results e g Data Log and AutoCal K136 Issue No 2 4 58 DPI 605 User Manual e Connection to a Computer The instrument may be connected to a computer via its RS 232 port for the purpose of transferring files of test results from Data Log or AutoCal functions to the computer A lead is supplied with the instrument which functions as an adaptor between the 6 pin Lemo connector on the instrument and the i
96. be flushed out with clean or soapy water To flush the pneumatic system proceed as follows refer to Fig 4 1 o Using a screwdriver remove the filter from the Pressure Port 5 and Vent Port 2 respectively o Connect a clean tube to the Breather Port 7 via a G adaptor o Switch the instrument on and set it up to Pressure mode NOT Vacuum mode o Place the open end of the tube connected to the breather port into a beaker of water or soapy water as appropriate and operate the Hand pump 3 to suck the cleaning agent into the instrument s pipe work o Removethe connection to Breather Port 7 Repeatthe procedure outlined in Section 4 19 If the procedures outlined in Sections 4 19 and 4 19 1 fail to remove contamination the instrument will need to be dismantled this procedure being outside the scope of this document Please consult the instrument supplier K136 Issue No 2 vm DPI605 User Manual __ K136 Issue No 2 5 Applications 5 1 5 0 APPLICATIONS 5 1 The DPI 605 can be used in a number of ways to carry out calibration tests on many types of pressure devices The instrument can generate and monitor both pressures and electrical voltages Form of Test Generally devices to be calibrated require one of the following e Anelectrical input to generate a pressure output e A pressure input to generate an electrical output e Anelectrical input to produce a pressure display e A pressure input
97. c DMM alternating current atmosphere degrees Celsius degrees Fahrenheit common centimetre squared continued direct current digital multimeter device under test enter full scale feet metres of water at 4 C kilogram Pascal personal identification number milli Amperes milli metres number pressure pressure transmitter reading serial data transmission standard tare vacuum K136 Issue No 2 1 Introduction 14 1 INTRODUCTION The primary use of the DPI 605 range of instruments is a ruggedised instrument designed to operate in high abuse environments The instrumentis available in five types Commercial Calibrator Commercial Indicator Intrinsically Safe Calibrator Intrinsically Safe Indicator Sub Rack Mounted Calibrator With the exception of the rack mounted version all instruments are portable For the commercial instruments power is supplied by an internal rechargeable battery pack or alternatively if required by six alkaline D size cells A mains power supply adaptor is also supplied as standard This mains power supply adaptor serves a dual purpose It allows the instrument to be either powered directly from a mains power supply whilst recharging its internal battery or can be used to recharge a spare optional battery pack away from the instrument A secondary use of the DPI 605 is as a laboratory instrument K136 Issue No 2 1 2 DPI 605 User Manual 1 1 General In its c
98. cal outputs Limits K136 Issue No 2 i gt A 6 DPI 605 User Manual e Test Block The data in this block is used to specify the actual details of the test to be performed on a step by step basis The datatakes the form of a series of individual SCPI commands to for example put messages on the display and log readings This block is therefore of variable length and content An example of some commands is shown below Message please connect up device under test Test Pressure P limits Message please go to next pressure Test Pressure P limits Message please go to next pressure Test Pressure P limits End Block The data in this block is used to specify any activity required after the completion ofthe execution of the Test Block The data takes the form of a series of individual SCPI commands and as such is of variable length and content The example below shows the display of a message on the screen and the specification of a BSL test on the results obtained from execution of the Test Block Message please disconnect device under test BSL limits units messages Message if device failed please replace and repeat test OUTPUT OF TEST RESULTS Results Files in the instrument may be exported from the instrument via the RS 232 port in any of the three ways detailed below e Print Using the instrument keypad the required Results Fileis selected for Replay and the Print
99. can take place AutoCal Test Procedures AutoCal Results Files and Data Log Results Files may be down loaded to and uploaded from the instrument The instrument may also be controlled via the RS 232 port It can be instructed to take readings and measurement ranges can be selected for example In fact full remote control of the instrument is possible anything that can be done via the instrument s key pad can be done via the RS 232 port as well For this bi directional communication the instrumentuses the SCPI Communications Protocol SCPI pronounced skippy stands for Standard Commands for Programmable Instrumentation As the name suggests it is a language for communication with clever instruments Allinstruments which adhere to the SCPI standard can be talked to with the same words These words are called SCPI Commands The commands understood by the DPI 605 are part sub set and part super set of those defined by the SCPI standard because the instrument does not have all the facilities which are catered for by SCPI but it does have some additional facilities are not In the fullness of time the commands which are at present specific to the DPI 605 may be officially adopted by the SCPI Consortium and it seems likely that the SCPI Standard itself will be adopted by the Institute of Electrical and Electronic Engineers to form an extension to the IEEE 488 standard All features facilities and functions of the instrument are available via
100. ch new displayed reading Resolution 16 bits These facilities are mutually exclusive Digital Interface RS 232 serial interface for stored data output to host computer or printer and down loaded test routines electrically isolated from the instrument K136 Issue No 2 1 6 DPI 605 User Manual Power Supply Calibrator and indicator supplied fitted with Ni Cad rechargeable pack Can also be powered by 6 x D cells alkaline recommended Battery life 20 hours nominal for Ni Cad 70 hours nominal for alkaline External PSU charger unit supplied as standard Environmental Specification Temperature Operating 10 to 40 C Storage 20 to 60 C Sealing Instrument IP65 Battery charger to laboratory standard Electro Magnetic Compatibility Designed to meet EN50081 1 and EN50082 1 Physical Specification Dimensions 140 mm x 280 mm x 370 mm Pressure Connections Di female and removable and NPT female supplied K136 Issue No 2 1 Introduction 1 7 1 4 Specification Indicator Version Specification as for the Calibrator version except Operating Pressure Range Any full scale can be supplied between the ranges listed below 0 to 70mbar to 0 to 70 bar gauge 0 to 350 bar sealed gauge 350mbar to 350 bar absolute Gauge versions available with 1 bar gauge option Accuracy Ranges 0 to 80mbar to 0 to 70 bar 0 05 of reading between 20 to 100 F S 0 01 of F S between 0 and 2
101. ctory or the Results directory The appropriate directory is selected by means of either the Tests F1 or Results F2 keys Selection of one of these directories produces the appropriate directory listing typical listings are shown below Free Blocks 9212 AutoCal Tests o Test o Replay TS150000000000000001 N1234543670111111112 o Directory TS150000000000000002 N1234543670111111113 e Delete TS150000000000000008 N1234543670111111114 TS150000000000000082 N1234543670111111115 7 Mes TS150000000000000033 N1234543670111111116 Page Up Page Down T J Typical Tests Directory AutoCal Results Free Blocks 9212 TS150000000000000001 TS150000000000000002 TS150000000000000008 TS150000000000000032 TS150000000000000033 N1234543670111111112 gt 1 N1234543670111111113 gt 1 N1234543670111111114 gt 1 N1234543670111111115 gt 1 N1234543670111111116 gt 1 Page Down T A Page Up Typical Results Directory K136 Issue No 2 4 Operation 4 49 Use the Page Up and Page Downkeys to selectthe appropriate directory page and the Tand J keys to select the file on the relevant page To delete a selected file position the cursor against the file name and press the ENT key on the numeric key pad Providing the file is not password protected a pre delete warning is displayed as follows Delete Are you Sure Yes No The file is deleted on subsequent operation of the Yes F3 key or the Delete operation aborted by
102. d to the instrument s pressure port and negative pressures for Internal 2 are simulated by application of a positive pressure to the Reference port Temperature Compensation TC Used to provide temperature compensation of the pressure reading The temperature compensation procedure takes the form of applying zero and nominal full scale pressure to the transducer to be compensated and entering the precise value of the nominal full scale pressure applied via the key pad This procedure is repeated at a minimum of four different temperatures over the temperature range of interest 2 Point This is a simple span and zero calibration adjustment Zero pressure and nominal full scale pressure are applied to the transducer to be adjusted the exact value of full scale pressure applied being typed in via the key pad This procedure leaves the linearity and temperature compensation data unchanged Under the Barometric option of the Pressure Calibration Adjustment menu four further options are provided Because the Barometric transducer works on a resonant principle which is completely different to the piezo resistive transducers used for the other pressure ranges of the instrument the calibration adjustment features for the Barometric option are differentto those for the other ranges The four options are m Constants This function provides access to the calibration constants of the Barometric transducer The constants are derived at the time
103. ded e Manual Mode Manual Mode enables the user to configure the instrument in any way and store any number of readings Itis perhaps worth mentioning here that the Electrical Window may be selected as manual number entry thereby catering for dial gauge or indicator calibration The user specifies a File ID and a Serial Number to identify the file which is created on the instrument in which the results are stored The File ID may be up to 18 characters long and Serial Number may be up to 17 characters long Both may contain alphabetical and numerical characters This manual mode of operation could be termed the unplanned mode Program Mode Program Mode allows the user to selecta Test Programto be followed from any number of Test Programs previously downloaded to the instrument via the RS 232 port The results gathered during execution of the Test Program are stored in a file which is named by File ID and Serial Number K136 Issue No 2 A AutoCal A 3 PROGRAM MODE AUTOCAL SYSTEM OVERVIEW Test Programs are created on a computer A software tool is necessary to perform this task and other tasks on the computer required to implement the system Examples of this tool could be InteCal and DPI 605 File Manager The Test Program is created in plain English A large number of Test Programs may be held on the computer at one time Once the program has been created it is stored and can be downloaded to the instrumen
104. ded Menu Icons In the following sections the menu driven operations of the instrument are supported by icons to show the structures associated with each command Atypical icon is shown below together with a description lt First menu level System Function e Defaults o Battery A e Se Sub menu level Option selected at this level is shown in o Cal Test blue a Units Sub menu level Options shown indicate all the options n Comms lt available under the option selected in the block immediately o More above Option selected at this level is shown in blue gt Time sub i cli Ei een Sub sub menu level Options shown indicate all the options available under the option selected in the block immediately above If selected will be shown in blue By working down the icon from the top to bottom the key sequence for the system function at the lowest level is obtained The example on page 4 1 shows the key sequence required in order to change the instrument s system time i e SET UP Defaults Clock Time Installation General installation details are described in Section 2 Page 2 4 et seq K136 Issue No 2 4 Operation 4 3 4 4 Switching ON and OFF The instrumentis switched on by means of the ON OFF key located on the keyboard After switch on a short initiation period follows during which the valves Calibrator only are set to the correct states When the instrument di
105. drops below 10 25 bar A File Closed message is then displayed to indicate that the logging operation has terminated Figure 4 6 Typical Event Mode Summary Screens Contd K136 Issue No 2 4 Operation 4 43 4 15 3 Data Log Replay Operations To replay Data Log results data select the Replay option F2 from the Data Log menu A directory showing the first page of Data Logged files is displayed e g File ID Data Log Free Blocks 10846 AF 26123 22 02 93 9 23 40 AX 27000 22 02 93 9 56 10 AY 28000 22 02 93 11 16 20 Page Down To replay a Data Log file select the required file by means of the Page Up F1 Page Down F2 T F3 or F4 cursor keys and press the ENT key onthe numeric key pad Four display modes are now provided as follows Select replay format Display Graph Print Upload e Display Selection of the Display option F1 writes the data associated with the first location of the selected Data Log file to the display e g Location 1 of 20 AY28000 Previous Next 16 07 59 05 08 92 To display the data relating to all subsequent locations press the Next key If an out of range location is requested o Record e A e Replay the instrumentremains atthe currentlocation and flashes an o Directory error message Number out of range Previous displays S Hess data in the previous location Repeated pressing of the m Display Previous key causes the instrument to step back one a Graph locatio
106. e Details F1 key o To exit the Manual AutoCal mode press the Exit key F4 at the Analyse results prompt e g Analyse results BSL TSL ABS Exit o To replay the results obtained refer to Section 4 15 3 K136 Issue No 2 4 52 DPI 605 User Manual 4 16 3 Replay of AutoCal Log Files To replay an AutoCal file proceed as follows o Select Replay F2 from the AutoCal Menu A directory showing the first page of Data Logged files is o Test displayed e g e Replay o Directory AutoCal Results Free Blocks 9212 o Delete Display TS150000000000000001 N1234543670111111112 gt 1 o Graph TS150000000000000002 N1234543670111111113 gt 1 o Print TS150000000000000008 N1234543670111111114 gt 1 Ei Upload TS150000000000000032 N1234543670111111115 gt 1 lt Previous TS150000000000000033 N1234543670111111116 gt 1 A Next Page Up Page Down To replay a Data Log file select the required file by means of the Page Up F1 Page Down F2 T F3 or 4 F4 cursor keys and press the ENT key on the numeric key pad Four display modes are now provided as follows Select replay format Display Graph Print Upload Display Selection of the Display option F1 writes the data associated with the first location of the selected Auto Cal log file to the display e g 1 of 20 AY 28000 Previous Next 16 07 59 28 02 93 To display the data relating to all subsequent locations press the Next key Alternative
107. e facility to set up the Baud rate F1 Parity F2 and Handshake F3 parameters for the RS 232 communication protocol Baud rate This option allows the baud rate to be set up via the Previous F1 and Next F2 keys The current setting is indicated by an arrow A typical Baud rate display is shown below Select baud rate 110 600 150 1200 300 2400 e 4800 9600 19 2K Previous Next After setting up the required baud rate press Exit Menu to return to the Comms sub menu Parity This option allows the RS 232 parity checking to be set up Three options are available Odd F1 Even F2 and None F3 Handshake Selection of this option allows the RS 232 handshaking mode to be set up Four options are available None F1 Software F2 Hardware F3 and Both F4 K136 Issue No 2 3 Familiarisation 3 23 3 11 3 Set up Contd o Clock The clock facility permits the operator to set up the instrument s clock and calendar functions Two sub functions TESTA CAL ATEST Time and Date are provided each of which permit entry of a new system parameter i e Time or Date e Printer This facility offers a choice of printer which is selected from the printer set up menu Selecting the Printer option from the Default menu provides a list of printers supported by the instrument e g Printer Selection Druck 40 column printer 80 column printer Previous Next The currently selected printer is
108. e falls below the set Safety Limit pump blocking will be inhibited K136 Issue No 2 4 Operation 4 19 4 6 2 Selection of Pressure Process Functions Five pressure process functions are provided on the instrument Tare Peak F S Filter and Flow Allfunctions are accessible from the Pressure Processing Selection menu Assuming the instrument to be switched on the menu is accessible by pressing the PROCESS key and appears as follows e g Pressure Processing Selection Tare Peak F S More Access to the Filter and Flow process functions is gained by pressing the More F4 key Note that if any of the following functions are enabled and the instrument is set to power up as last set up see Section 4 5 6 the functions will remain enabled when the instrument next powers up e Tare The Tare function permits a programmable offset to be either subtracted from or added to the indicated pressure reading To enter the Tare function proceed as follows o Select Process by pressing the PROCESS key e Tare located in the Pressure key pad o Peak FS More o Press the Tare F1 key A menu showing the status ee of the Tare process is now displayed e g A Manual nn Pressure Tare Off Value 1 45000 bar Reading Manual On Off K136 Issue No 2 4 20 DPI 605 User Manual 4 6 2 Selection of Pressure Process Functions Contd o Either press the Reading F1 key to set the currently indicated value
109. e important that the ratio reference is correctly set up prior to any calibration adjustment of the instruments pressure ranges The procedure takes the form of measuring transducer supply nominally 5 Volts and measuring Span Cal nominally 0 1 Volt and entering these values via the key pad Both signals are to be found on the main printed circuit board connector PL15 Ground for both signals is on pin 3 the transducer supply being on pin 1 and the Span Cal signal on pin 2 K136 Issue No 2 EE 6 6 6 2 DPI 605 User Manual Instrument Calibration Pressure Contd e The Electrical F2 option of the Calibration Adjustment Menu provides access to the calibration adjustment functions for allthe electrical ranges of the instrument namely the voltmeter ammeter thermometer voltage output and current output Calibration adjustment of the voltmeter is carried out individually for each of the four voltmeter ranges which comprise the auto ranging voltmeter The voltmeter range to be adjusted is selected i e 50V 10V 1V or 100mV and voltages of zero and nominally full scale are applied The exact value of applied voltages are entered via the key pad Calibration adjustment of the ammeter takes the form of applying currents of zero and justless than full scale to the ammeter and entering the exact values of the currents via the key pad Calibration adjustment of the thermometer takes the form of appl
110. e what File reference numbers have already been used since an attempt to use an existing file ID number to record a Data Log operation will result in the display of an error message File already exists This Data Log function enables files to be detected from the Data Log memory Selection of the function provides a directory listing and four cursor keys Page Up F1 Page Down F2 T F3 and J F4 e g K136 Issue No 2 4 34 DPI 605 User Manual File ID Data Log Free Blocks 10846 28 01 93 15 37 10 28 01 93 15 40 30 28 01 93 15 43 16 28 01 93 15 49 32 28 01 93 15 58 29 Page Down T J The Page Up and Page Down keys are used to select the appropriate directory page and the T 4 keys to select the file on the page To delete the selected file position the cursor against the file name and press the ENT key on the numeric key pad A warning is displayed as follows Delete Are you sure Yes No The file is deleted on subsequent operation of the Yes F3 key or the Delete operation can be aborted by operation of the No F4 key 4 15 2 Data Log Record Operations To carry out a Data Log Record operation proceed as follows o Select Record F1 from the Data Log Menu A prompt to Continue F1 with the Data Log function or to Quit F4 is now given e g Will log the current display 14 22 46 Continue Quit o Press the Continue F1 key A file number is requested for the new Data Log file as follows e g
111. electrical outputis enabled the output power is sourced from the instrument s internal battery and will therefore increase the battery s rate of discharge a Off Switches the electrical output to OFF When theinstrumentis powered up the electrical output will always be switched off i e if it was enabled when the instrument was turned off it will need to be re enabled after switch on Electrical Selection of the Electrical option provides three system facilities Set up On and Off Set up is used to specify the required linear relationship between any of the electrical measurands Voltage Current or Temperature and the selected type of electrical output Voltage or Current Set up When the Set up key is pressed a prompt is displayed for entry of a lower point e g lower point 000 00 oC 0 0000 mA Enter the desired measurand lower point on the numeric keypad and press ENT and then the required corresponding lower output level and press ENT again K136 Issue No 2 3 18 DPI 605 User Manual 3 10 Electrical Output Key Functions Contd Electrical Output Accept the entered parameters by pressing the Accept key and a prompt will be given for an Upper point e g upper point 150 00 C 15 0000 mA Enter the desired measurand upper point and press ENT followed by the corresponding upper output level and press ENT again Having set the required relationship press the
112. ent pressure units were psi SOURCE VOLTAGE KMATH1 3 1 15 5 sets the voltage output to represent pressure with 3 psi corresponding to 1 Volt and 15 psi corresponding to 5 Volts SOURCE STATE is used to turn the voltage output on and off For example SOURCE STATE ON turns the output on SOURCE VOLTAGE LEVEL IMMEDIATE AMPLITUDE is used to set the value of the programmable output simply by following the command string with the desired value SOURCE CURRENT provides identical facilities for the current outputto those providedforthe voltage output by SOURCE VOLTAGE K136 Issue No 2 B SCPI Communications Protocol B 13 e READ provides access to values measured by the instrument For example READ PRESSURE returns the current pressure reading READ TEMPERATURE would return the current reading of temperature If temperature was not being measured by the instrument atthe time then the value returned is undefined and an error message is placed in the error queue see SYSTEM ERROR CALCULATE lt 2 gt KMATH DEVIATION is used to set up the Deviation function found under the Process key Four parameters follow the Deviation command they are The lower pressure value The corresponding electrical value The higher pressure value The corresponding electrical value 0 000 CALCULATE lt 2 gt KMATH PERCENT is used to set up the Percent Function found under the Process key Two parameters follow the Percent com
113. er by pressing the On F1 key symbol will be displayed to show that the filter is selected See Section 3 11 3 page 3 25 for filter parameter setup details o Todisable the filter press the Off F2 key K136 Issue No 2 4 22 DPI 605 User Manual 4 6 2 Selection of Pressure Process Functions Contd e Flow The Flow function is selected as follows o Select Process by pressing the PROCESS key located in o Tare the Pressure key pad o Peak one Press the More F4 key followed by the Flow ES key The eer Pressure Flow menu will now be displayed e g e Flow 2 More Pressure Flow a On a Off On Off o Enable the Flow function by pressing the On F1 key A symbol d will be displayed to show that Flow has been selected o To disable the Flow function press the Off F2 key 4 7 Generating a Vacuum not applicable to Indicator versions The vacuum generation controls of this version of the instrument are shown in Fig 4 1 and comprise the following Vent Valve 2 e Volume Adjuster 4 e Hand pump 3 e Pressure Test port 5 The associated pressure control panel is shown below A description of the controls is given in Section 3 To generate a vacuum proceed as follows o Switch the instrument to ON by means of the ON OFF key mo AO LEAR The instrument will normally default to its internal pressure transducers and to the pressure mode If however the instrument was switched off
114. er new P I N number lt 27 gt Enter on its own is no P I N On entry of the required P IN number the instrument requests verification of the new pin number prior to setting it Enter the required new Pin number in response to the following prompt e g Verify new P I N number lt 27 gt The same P I N number is entered again and providing the verification P I N number agrees with the requested new P I N number the instrument accepts the new number giving the message Verification OK If the entered P I N number does not match the required new P I N number no new P I N number will be set and an error message is displayed as follows Pin number does not agree The instrument then exits from the SET UP mode K136 Issue No 2 6 Calibration 6 3 6 2 Instrument Calibration Pressure Calibration procedures must be carried out in a controlled environment e g Standards Laboratory To carry out a pressure calibration proceed as follows o Switch the instrument ON o Press the SET UP key and select Cal Test F4 from the o Defaults Set up menu o Battery S SE o Enter P I N number and press ENT This will cause the Po calibration adjustment menu to be displayed e g A Test A New Pin Within the calibration adjustment menu four options are A Keyboard A available A Pressure nn Calibration adjustment menu Pressure Electrical Ratio Keyboard Fi F2 F3 F4 Pressure F1 Electrical F2 and
115. external transducer and in response to the prompt Enter applied Pressure 2 D Enter the value of the applied pressure on the numeric key pad and press ENT Press the Accept key F1 The display briefly displays the following message e g Calculating Coefficients Please Wait before returning to the Pressure Cal Adjustment menu K136 Issue No 2 6 Calibration 6 9 6 3 2 Linearity Multiple Point Cal To carry out multiple point calibration routinefor an externaltransducer proceed as follows o Select Linearity F1 from the External Pressure Transducer Cal menu o Apply lowest pressure to the external transducer and in response to the prompt Applied Pressure 1 O psi Clear Lin Enter the applied pressure as indicated by pressure standard on the numeric key pad followed by ENT o Press the Accept F1 key to accept the entered pressure o In response to the following prompt e g Another Point Yes No Select Yes NOTE A minimum of five points are required for a linearity calibration o Repeat the above procedure for a minimum of five pressures When the final pressure has been entered answer No F2 in response to the Another Point prompt Two messages will then briefly be displayed Transferring to EPROM Calculating Coefficients Please Wait On completion of the above the External Transducer is calibrated and can be selected for use from the External Transducer Menu K136 Issue No 2
116. f AutoCal Facility The AutoCal option enables the instrument to automatically store the results obtained from alarge number of calibration runs The function has two basic modes of operation Manual and Auto The Auto option permits the instrument to be programmed via the RS 232 port to carry out tests on a number of devices These programmed tests are used to set up both the electrical and pressure outputs of the instrument for each test Inthe Manual option the operator must manually set up the electrical outputs and for calibrator versions of the instrument use the hand pump to set the required pressures For indicator versions of the instrument the applied pressure must be set up externally An AutoCal Log operation is then carried out every time the AutoCal Log key is operated To carry out an AutoCal operation proceed as follows refer to fig 4 1 o Open the Vent Valve 2 to ensure that the instrument is depressurised o Connect the device or system under test to the instrument o Switch the instrument ON o Set up the instrument to display the required measurands o Pressthe ZERO key o Close the Vent Valve 2 o Select the AUTOCAL function Selection of this function displays the AutoCal menu as follows e g AutoCal Menu Test Replay Directory Delete o To obtain a listing of the AutoCal File names already used press the Directory F3 key The Directory utility is described in Section 3 11 9 and the use of the utility
117. feature is used to set up the characteristics of a low pass digital filter which can be applied to both the pressure and electrical measurands Selection of Filter from the Setup menu provides a choice of Pressure or Electrical Selection of either of these two options shows the current status of the filter parameters for that measurand and provides a facility to change them e g Average 3 0 Step 0 05 Average sets the damping factor time constant of the filter and Step the response to a step increase in the measurand In the above example a step increase greater than 0 05 would be ignored by the filter and the new value acquired immediately The default settings are 3 max 100 and 0 05 max 100 The pressure and electrical filter characteristics can be different for each measurand e Battery The battery function provides a status report on the battery s state of charge When the function is selected the battery voltage is indicated together with a status statement e g Battery 9 37 V Good Three status statements are provided Good Okay and Poor When the Poor status is indicated the battery should be recharged or if alkaline cells are fitted replaced K136 Issue No 2 EE 3 26 DPI 605 User Manual 3 11 3 Set up Contd e Status The Status facility provides details of the instrument s internal and external pressure calibration dates together with electrical calibration details Selection of the
118. filter_state_qry INPut FLOW STATe Header Suffix 2 1 1 flow_cmd flow_state BOOLEAN INPut FLOW STATe Header Suffix 2 1 1 flow_qry INPut TARE Header Suffix 2 1 tare_value_cmd tare_value INPut TARE STATe Header Suffix 2 1 1 tare_state_cmd state BOOLEAN NUMERIC_REAL NUMERIC_REAL NUMERIC_REAL DPI 605 User Manual SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE K136 Issue No 2 B SCPI Communications Protocol B 25 INPut TARE STATe Header Suffix 2 1 1 tare_state_qry INPut TARE Header Suffix 2 1 tare_value_qry INPut ZERO Header Suffix 2 1 input_zero_cmd LEAK autocal_leak_cmd acal_wait NUMERIC_REAL SINGLE acal_time NUMERIC_REAL SINGLE acal_leak_error NUMERIC_REAL SINGLE MEMory CATalog AUTocal cat_autocal_qry MEMory CATalog DATalog cat_datalog_qry MEMory CATalog TEST cat_test_qry MEMory CATalog ALL cat_all_qry MEMory DATalog CLOSe dlog_close_cmd MEMory DATalog INITialise dlog_init_log_cmd dlog_init_str STRING SINGLE dlog_init_type ENUMERIC SINGLE MEMory DATalog MANual dlog_manual_cmd MEMory DATalog PERiod dlog_period_cmd period_hrs NUMERIC_REAL SINGLE period_mins NUMERIC_REAL SINGLE period_secs NUMERIC_REAL SINGLE MEMory DATalog PERiod dlog_period_qry MEMory DATalog SAMPles dlog_samples_cmd dlog_samples_val NUMERIC_REAL SINGLE MEMory DATalog SAMPles dlog_samples_qry K136 Issue No
119. ge Up and Page Down keys are used to select the appropriate directory page andthe T andJ keys to select the file on the page K136 Issue No 2 3 Familiarisation 2 45 To delete a selected file position the cursor against the file name and press the ENT key on the numeric key pad Providing the file is not password protected a pre delete warning is displayed as follows Delete Are you Sure Yes No The file is deleted on subsequent operation of the Yes F1 key or the Delete operation aborted by operation of the No F2 key If a file is password protected following operation of the Yes F1 key a prompt is given for the corresponding password as follows Enter File Protection Number O Enter the password a number within the range 1 to 9999 followed by ENT K136 Issue No 2 o 3 46 DPI 605 User Manual Test Equipment Depot 800 517 8431 99 Washington Street Melrose MA 02176 FAX 781 665 0780 TestEquipmentDepot com K136 Issue No 2 4 Operation 4 1 4 1 4 1 1 4 1 1 4 2 OPERATION Safety Pressure Safety Instructions BEFORE CONNECTION DISCONNECTION OF PRESSURE COUPLINGS THE PRESSURE CAN BE VENTED BY MEANS OF THE VENT VALVE f ALWAYS CHECK FOR TRAPPED PRESSURE ENSURE THAT CORRECTLY RATED PIPE FITTINGS ARE USED Electrical Safety Instructions RECHARGEABLE BATTERY PACK USE ONLY THE RECOMMENDED TYPES OF CELL THE RECOMMENDED TYPE IS INDICATED ON THE BATTERY COMPARTME
120. group of keys the primary functions allocated to the keys are as displayed in Fig 3 3 These functions remain displayed for approximately 60 seconds and if no selection is made the key allocations indicated are cancelled The function keys are only active whilst the key allocation legend is visible After this time out period the required mode must be re selected in order to activate the function keys again The function keys are essentially the second level of a menu structure Operation of a particular key takes the operator into the next level down in which the functions of its F1 to F4 keys would be re allocated Selection of a third level function could perhaps move the operator down into a fourth level in which the function keys would again be re allocated Operation of the Exit Menu key causes the system to move back up the menu structure to the level immediately above the current level or to clear the function key status line if it is already in the highest level K136 Issue No 2 3 10 DPI 605 User Manual 3 7 Numeric Keys The numeric keys are used to enter numeric values Selected positive and negative values are accepted when the Enter ENT key is pressed The Delete key DEL provides an edit function by deleting the last digit entered via the keyboard 3 8 Pressure Key Functions The pressure keys are used to select pressure measurement parameters e Range Pressure Used in co
121. he Accept F1 key and a prompt for the upper point will then appear e g Upper Point 500 00000mbar 5 0000 V o Enter the required level for each parameter on the numerical keyboard and press ENT To return to the lower limit if necessary press Accept F1 o Press Exit Menu and enable the analogue output by pressing the On F3 key The lower section of the electrical display will now indicate the analogue output mode e g Pressure to Volts o Todisable the analogue output press the Off F4 key or select another type of analogue output e g MA The instrument is now programmed to provide an analogue voltage output proportional to the indicated pressure It should be noted that the electrical outputs are mutually exclusive i e the instrument has the capability of providing either a programmable voltage or current output or an analogue output Voltage or Current proportional to a measurand It cannot provide both types of output simultaneously The output appears across B and C sockets located on the left hand side panel of the instrument K136 Issue No 2 4 Operation 4 13 Pressure Switch Testing 4 29 The Switch Test function of the instrument allows the operating point of pressure switches to be accurately determined To carry out a Switch Test operation proceed as follows o Ensure that the instrument is depressurised by opening the Vent Valve 2 o Connectthe pressure switch to the ins
122. he fourth argumentis a string of up to 40 characters which can be displayed when the BSL calculation is completed by the instrument and the specified deviation has been met o The fifth argument is also a 40 character string which can be displayed when the BSL deviation exceeds that specified in arg2 The BSL command should only be used in the End Block and only if three or more points have been logged during execution of the Test Block i gt K136 Issue No 2 A 12 DPI 605 User Manual Execution ofthecommand results inthe instrument calculatingthe Best Straight Line BSL through all the logged points according to a least squares fit The deviation of each actual point from the best straight line is then calculated The worst case calculated deviation from the BSL is then displayed together with the specified deviation arg2 followed by either PASS or FAIL Four options are provided BSL Accept F1 Key Notes F2 key this shows the pass fail text arg4 or arg5 Details F3 key Displays Gain Offset of BSL Results F4 key displays worst case deviation from the BSL and PASS or Fail The results of the BSL calculation i e worst case deviation offset and gradient of the Best Straight Line together with the specified permissible deviation are presented in printout of results upload of results and SCPI upload of results TSL arg1 arg2 arg3 arg4 arg5 This command has
123. he instrument Should the instrument become contaminated with fluid proceed as follows refer to Fig 4 1 e Open the Vent Valve 2 and disconnect any connections to the Pressure Port 5 Ensure that the instrument is set to Pressure mode NOT Vacuum mode Switch the instrument OFF Screw the Volume Adjuster 4 fully in minimum volume and close the Vent Valve 2 Invert the instrument and pump out as much contaminant as possible from the Pressure Port Using a screwdriver remove the filter from the Pressure Port 5 and the Vent Port 1 do not remove the filter in the Breather Port Seal the pressure port with a suitable blanking plug and pump up the pressure in the instrument to approximately 20 bar Open the Vent Valve 2 and the contaminant will be blown out through the Vent Port 3 Repeat a number of times until no further contaminant is seen to be blown out Test Equipment Depot 800 517 8431 99 Washington Street Melrose MA 02176 FAX 781 665 0780 TestEquipmentDepot com K136 Issue No 2 4 Operation 4 61 o Removethe base of the instrument and check that no bubbles of fluid remain in the pipelines o Refit filters to the pressure and vent ports and check instrument s reading against a known standard 4 19 1 Flushing the Instrument s Pneumatic System In extreme circumstances where the procedure outlined in Section 4 18 does not cure the problem the instrument s pneumatic system can
124. howing Alternative Use of Six Individual D Size Cells Battery Compartment Cover Captive Screws Rechargeable Battery Pack Lead Battery Pack Connector Bonn Figure 2 4 Battery Removal and Replacement Early Versions K136 Issue No 2 2 Installation 2 9 e Battery Pack Removal and Replacement from Serial number 1607 On later versions of the instrument the design of the battery compartment has been changed the battery to instrument connection being made by directly plugging the battery into a connector located into the base of the instrument see figure 2 5 It should be noted that new version battery packs will fit the earlier version instruments but earlier type battery packs will not fit later versions of the instrument To exchange a battery pack proceed as follows refer to figure 2 5 e e ENSURE THAT THE EQUIPMENT IS SWITCHED OFF Turn the instrument over to expose the battery compartment Remove the Battery Cover 1 by unscrewing the Captive Screws 2 Carefully lift out the Battery Cover 3 clear of the instrument Slide replacement battery pack into the battery compartment gently pressing down on the battery to ensure that the base unit and battery connector mate fully CAUTION Do not attempt to force the battery into the connector Replace the Battery Pack Cover 1 and tighten the Captive Screws 2 K136 Issue No 2 2 10 DPI 605 User Manual e Fitti
125. ic text is then appended to the stored file by pressing of the ENT key located on the numeric key pad When all locations have been filled subsequent operations of the STORE key cause previously stored data in the current location to be over written Recalls previously stored data to the display Repeated operation steps back one location for each key press and recycles when all twenty locations have been examined This function is used for both manual and automatic calibration routines Automatic calibration routines are downloaded from an external system via the RS 232 interface port This function configures the instrument to store a large number of test data screen displays The AutoCal log option provides two basic facilities Test and Replay In addition two utility options are provided Directory and Delete When the AutoCal function has been selected the function keys F1 to F4 are respectively allocated to the Test Replay Directory and Delete functions This section provides a basic overview of these options Full details of the operation of the AutoCal facility are given in Section 4 15 e Test The AutoCal Test mode is used to carry out calibration tests on devices and to automatically log all measurands associated with the test Two AutoCal modes are provided Manual and Auto K136 Issue No 2 3 Familiarisation 3 39 o Manual Initially when the Manual option is selected a facility is SON EK provided to have
126. ile ID number of an AutoCal file to be entered Following entry SATCH AUTO LEAK Gest OR est of a file ID number the data contained in the first location of the file is recalled to the display Data in each sequential location can then be recalled by operation of the Next key to go forward or the Previous key to go back The end of file is indicated by the message End Graph The Graph option is used to provide a graphical indication of a selected AutoCal file Three options are provided PvT Pressure v Time EvT Electrical v Time and PvE Pressure v Electrical A typical display is shown below 9 20579 u 3 77796 0 Points 10 It should be noted that if the Dial Gauge display option has been selected EvT gives a graphic output of Dial I P v Points and PvE Pressure I P v Dial Gauge reading Printer Selection ofthe Printer option enables all data associated with the selected replay file to be downloaded to aprinter To make use of this option a printer must be connected to the RS 232 interface The appropriate printer must also have been selected from the Set up Menu Refer to Section 3 11 3 Printer K136 Issue No 2 3 Familiarisation 2 43 o Upload This option is used to transmit Upload AutoCal data to an external system via the RS 232 port Note that the RS 232 port must be configured in the correct way for the external system RS 232 configuration is carried out under the Set up o
127. ility is selected the electrica window of the display is re configured to indicate Pressure Drop and Leak Rate Four sub functions are allocated to the facility as follows e Wait Permits the entry of a delay period between operation of the Start function and commencement of the test period e Time Sets the duration of the leak test period e Start Initiates a leak test e Reset Clears leak test display values after the completion of a test For full details of how to conduct a leak test refer to Section 4 8 Store This function permits the current display pressure and electrical windows to be stored in one of twenty memory locations Operation of the STORE Key initially provides the facility to add alpha numeric characters to the stored display Alpha characters are entered by means of the Alpha F1 Alpha F2 lt F3 and F4 keys Alpha T F1 scrolls forwards through the alphabet and Alpha J F2 backwards Shifting right to the next character position or left to a previous character position is achieved by the F4 and lt F3 keys respectively K136 Issue No 2 3 38 DISPLAY ON SET UP LIGHT SMICH AUTO f LEAK TEST _CAL_ TEST DATA 3 11 8 Recall En N SCH AUTO V LEAK TEST Oo _J TEST DATA SORE 3 11 9 AutoCal SMICH AUTO f LEAK TEST _CAL TEST DATA DPI 605 User Manual Numeric entries are added directly from the numeric key pad The full alpha numer
128. indicated by the position ofthe cursor arrow Use the Previous F1 and Next F2 keys to move the cursor arrow to select the required printer Press the Exit Menu key to return to the Default Settings menu Contrast This facility is selected by Defaults F3 from the Set up menu Itis used to select the contrast of the display and provides an adjustment over the range 0 Light to 100 Dark After selection the display indicates the current contrast level e g 50 as follows Adjust contrast 50 Up Down Select the required level by using the Up F1 or Down F2 keys Press Exit Menu to return to the Set up menu or allow the function to time out K136 Issue No 2 IR 3 24 DPI 605 User Manual 3 11 3 Set up Contd o Auto Off na The functions available in this category allow the SE auto off features of the instrument to be set up There are two options available Power and Light m Power Provides an option to select apower saving function for the instrument by providing a facility to allow an automatic turn off after a preset keyboard entered period of inactivity i e no key presses This facility is enabled by the Enable F3 option and disabled by the Disable F4 option The default setting gives a period of 30 min When one minute of the time out period remains the instrument produces short bleeps to warn the operator Pressing any key will reset the timer E Light Provides a power saving opti
129. inning of the DML followed by the pressure value and its units Log Point is displayed over the F1 function key Test program execution is halted until the F1 function key is pressed K136 Issue No 2 i gt A 10 DPI 605 User Manual When F1 is pressed ifthe actual pressure is equal the specified pressure value within the specified tolerance the displayed values are recorded and execution of the test program continues If when F1 is pressed the actual pressure is not within the specified tolerance then the user is offered the choice of Accept F1 key and Retry F2 key The logged data is presented in printout of results upload of results and SCPI upload GT arg1 arg2 This command has 2 mandatary arguments o The first argument is a pressure value in the units as selected in the Setup Block o The second argument is a tolerance on the pressure value in the same units Execution of the command results in Go To being displayed at the beginning of the DML followed by the pressure value and its units Accept is displayed over the F1 function key Test program execution is halted until the F1 function key is pressed When F1 is pressed if the actual pressure is equal the specified pressure value within the specified tolerance then execution of the Test Program continues If when F1 is pressed the actual pressure is not within the specified tolerance then the user is offered the choices Accept F1 key
130. instrument in each of the three possible ways are shown below e Example 1 The following example conveys the details below File ID ABCDEFGHIJKLMNOPQR Serial Number 12345678901234567 Pin Protection number 9999 In the Header Block the following details are shown Type gauge Full Scale 10 psi Nominal Output 100 mV Max pressure 15 bar File time 15 3 93 File Time 09 35 50 The setup block does the following things Adds an info line to the result file Prompts the use to enter his employee number and adds the prompt and answer to the results file Sets the instrument to internal pressure range Sets the pressure units to psi Selects the voltmeter The ammeter or thermometer are the other options Sets the Prog Output Voltage to 5 volts without turning it on or bringing it onto the screen Brings the Voltage output onto the screen in the off state K136 Issue No 2 i gt A 16 DPI 605 User Manual The test block does the following things Prompts the user to enter the ambient temperature Displays the message Please connect the device under test Turns on the Prog Output Voltage Displays the message Please check out basic operation Instructs the user to go to 20 psi within 0 1 psi Performs a Leak Test with a 5 second Wait Time and a 10 second Test Time Instructs the user to go to 9 different pressures the first of which for example 0 psi 0 1 psi Displays the message All results a
131. ion together with the specified note added For example MEM STORE NEXT This is good data TEST This is a self test facility and should not be used DISPLAY provides complex very advanced features to control the instrument s display It is not recommended for normal use SOURCE PRESSURE LIMIT provides access to the setting of the instrument pressure alarm limit The limit may be setto avalue viathe AMPLITUDE command and enabled or disabled using the STATE command For example SOURCE PRESSURE LIMIT STATE OFF turns the limit off SOURCE PRESSURE LIMIT AMPLITUDE 15 0 sets the limit to 15 in the current pressure units SOURCE PRESSURE LIMIT STATE ON turns the limit on SOURCE VOLTAGE KMATH lt 2 gt provides the ability to set programmable voltage output for use as an analogue output The number 1 is appended to the KMATH command to specify the signal source for the analogue output to be the pressure currently being K136 Issue No 2 E Ho B 12 DPI 605 User Manual measured by the instrument The number 2 is appended to the KMATH command to specify the signal source for the analogue output to be the electrical parameter currently being measured by the instrument Four parameters follow the KMATH command they are The low input signal value The corresponding low voltage output value The high input signal value The corresponding high voltage output value 0000 For example assuming the curr
132. ion of this manual Section 1 3 Electrical Safety The instrument is designed to be completely safe when used with Options and Accessories supplied by the manufacturer for use with the instrument K136 Issue No 2 Safety jii Toxic Materials During normal operation it is not possible for the user to come into contact with any hazardous substance which might be employed in the construction of the instru ment The use of hazardous materials in the construction of this instrument has been minimised Care should however be exercised during maintenance and the disposal of certain parts A Memory Back up Supply Employs two batteries containing Lithium completely sealed within the instrument When the battery needs replacement dispose of it as hazardous waste Repair and Maintenance This instrument must be maintained either by the manufacturer or a compe tent person K136 Issue No 2 iv DPI 605 User Manual DEFINITIONS e Explosive Atmosphere A mixture of flammable substance s in the form of a gas vapour or mist mixed with an oxidiser in proportions such that it can be exploded by excessive temperature arcs or sparking e Hazardous Area An area where the presence or possible presence of an explosive atmosphere requires that special precautions are taken to avoid any condition that could ignite the hazard e Safe Area An area where no explosion hazard exists at any time IMPORTANT THIS HANDBOOK IS WR
133. ions allocated to the F1 and F2 keys respectively provide a means of scrolling forward to the next page or back to aprevious page ofa directory listing The Exit Menu key is used to return to the main Data Log menu When first entering the Data Log functions it is good practice to interrogate the directory This will enable the operator to determine what file ID numbers have already been used since an attempt to use an existing file ID number to record on an operation will result in the display of an error message File already exists o Memory Space On many Data Log and AutoCal screens a message e g free blocks 9198 appears This gives an indication of the amount of memory in blocks that is available for use When a screen of data is recorded one block is used for storing the time and date and one block for each measurand on the screen For example if the instrument was simply measuring pressure and voltage then to store one screen would take three blocks of memory However if the programmable output was on and also the peak function was enabled then six blocks would be used to store one screen one for each of the following Time and date Voltage measurement Programmable output value Pressure Measurement Peak high Peak low K136 Issue No 2 3 36 DPI 605 User Manual 3 11 5 Data Log Contd When the instrumentis used to replay a Data Log or AutoCal file a temporary file is created which
134. is also a 40 character string which can be displayed when the ABS deviation exceeds that specified in arg5 PUNIT To represent selected pressure unit as specified in the Setup Block EUNIT To represent selected electrical unit RDG To represent percent of reading FS To represent percent of full scale e INFO argument This command has 1 mandatary argument o The argument is a string of up to 40 characters Execution of the command results in the string being placed in the Results File and it therefore also appears on a print of the results file it is also presented in an upload of the results and SCPI upload of results The string is never displayed on the instrument e NOTE argument This command has 1 mandatary string argument Execution of the command results in the string being displayed at the beginning of the DML The remainder of the DML is reserved for the operator to enter alpha numeric characters Test Equipment Depot 800 517 8431 99 Washington Street Melrose MA 02176 FAX 781 665 0780 TestEquipmentDepot com K136 Issue No 2 A AutoCal A 15 Both the argument for the command and the characters entered by the operator are presented on the results printout results upload and SCPI upload The INFO command is used by the instrument itself to put BSL and TSL analysis data into Result Files 8 EXAMPLES Two examples of Test Programs together with corresponding Results Files extracted from an
135. l file to be uploaded to an external system via the RS 232 port The file is transmitted as ASCII text and as such is readily readable and imported into common spread sheets such as Microsoft Excel etc To use the facility proceed as follows O Ensure that the RS 232 port is set up to the requirements of the external system refer to Set up Section 4 5 3 D Connect the external system to the instrument RS 232 output socket located on the right hand side panel O Select AUTOCAL o Test e n Select Replay option F2 from AutoCal menu and o Delete select file to upload S n Press Upload F4 The corresponding file will now o Print be uploaded to the external system m Upload 4 16 4 Auto AutoCal Procedures 4 Inthe Auto AutoCal mode of operation the user selects a test program which has been downloaded into the instrument via the RS 232 port Test programs are created external to the instrument on a computer by means of a software tool such as Druck s InteCal and DPI 605 File Manager Specific details regarding the building of Test Files are described in Appendix A To download a file into the instrument proceed as follows o Connect the instrument to the external computer system by means of the RS 232 adaptor lead o Switch the instrument ON o Checkthattheinstrument s RS 232 port is set up to match that ofthe external system Communications parameters are configured in the Set up Mode Refer to Section 4 5 3
136. leaving a sealed in pressure it will remain in the pressure mode NOTE The instrument cannot be directly switched from pressure to vacuum from a pressurised state K136 Issue No 2 4 Operation 4 23 Pressure o Open the Vent Valve 2 o Press the PRES VAC key to select the vacuum mode o Close the Vent Valve 2 o Operate the Hand pump 3 togenerate the required vacuum 4 8 Measuring a Pressure To use the instrument for measuring a pressure proceed as follows e Ensure that the pressure or vacuum to be monitored is not likely to exceed the operating range of the instrument 1 to 20 bar max for calibrator versions Refer to Specification Section 1 3 IF IN ANY DOUBT CHECK BEFORE CONNECTING THE INSTRUMENT Switch the instrument ON by means of the ON OFF key The instrument will default to its internal pressure transducers and to the pressure mode Press the UNITS key and use one of the function keys F1 to F4 to select the required pressure units If the required units are not displayed refer to Section 4 4 If required press the LIMITS key and use the F1 and F2 keys to define an Alarm Limit for the test to be conducted see Section 4 6 1 Ensure that the Vent Valve 2 is open and connect the unit or system under test to the Pressure Port 5 Before applying the external pressure vacuum level zero the pressure display by means of the ZERO key Close the Vent Valve 2 App
137. lly entered value Manual The function is enabled or disabled by the On F3 and Off F4 function keys respectively AT symbol is displayed when the Tare function is enabled K136 Issue No 2 o 3 14 DPI 605 User Manual 3 9 Electrical Input Key Functions Contd o Peak Electrical Input o FS Electrical Input o Filter Electrical Input o Flow Electrical Input o Deviation Electrical Input Enables display to show maximum and minimum parameter levels obtained during operation When selected the function is enabled or disabled by means of the On F3 and Off F4 function keys respectively The currently displayed maximum and minimum levels are reset by the F1 key The Tare function if enabled is active for all functions on the display the Tare value therefore being subtracted from both the minimum and maximum reading as well as the electrical reading Converts the indicated parameter reading to a percentage of full scale F S reading over a user defined zero to full scale range The zero and full scale points can be set either by direct numerical entry via the numeric key pad or by means of function key F1 accepted as the currently displayed reading The function is enabled or disabled by the On F1 and Off F2 function keys respectively Provides alow pass filter to stabilise the display reading ifthe instrument is connected
138. lt files MEMORY DELETE is used to delete files contained in the instrument either by individual name or collectively MEMORY LOAD isusedto uploadfiles from the instrument The file must be specified by its name in single or double quotes ADIF is the name of the SCPI file format used by the instrument and it should be noted that it is the default command following LOAD To upload a file called TESTFILE1 the following command string would be used MEMORY LOAD TESTFILE1 The TSL and BSL commands can be used when uploading AutoCal Results Files to perform TSL and BSL calculations on the results if these were not performed as part of the test itself see AutoCal Description Appendix A MEMORY RECALL provides a means of uploading the contents of the memory locations found under the STORE and RECALL buttons on the keyboard A specific location may be specified by a number between 1 and 20 or simply the next location may be specified MEMORY STORE provide a means of using the STORE function of the instrument A specific location is specified by a number between 1 and 20 A text string follows the number and is added as a note to the stored data The string must be in single or double quotes and separated from the number by a comma For example K136 Issue No 2 B SCPI Communications Protocol B 11 MEM STORE 6 This is good data MEMORY STORE NEXT simply stores the contents of the display in the next locat
139. ly enter the required location directly from the keyboard and press ENT If an out of range location is requested the instrument remains atthe current location and flashes an error message Number out of range Previous displays previous data Repeated pressing K136 Issue No 2 4 Operation 4 53 ofthe Previous key causes the instrumentto step back one location each time Alternatively a location can be directly entered via the keyboard and will be displayed when ENT is pressed Atthe end of file the following display is printed e g Location 20 of 20 AY 28000 Previous Graph Test Replay Directory Delete o08o Display Graph Print Upload oomoo Previous A Next gt 16 08 57 25 02 93 Selection of the Graph option F2 permits the operator to choose a graphical output of the selected Auto Cal log file to the display The options available are selected by the function keys F1 to F3 as follows P Points E Points PvE These options are Pressure v Points F1 Electrical v Points F2 and Pressure v Electrical F3 Selection of one of these function keys e g PvT F1 will display the appropriate graph as follows Graph of Pressure Points Recorded 9 20579 Bar 3 77796 0 Points 10 To return to the graph selection menu after displaying the required data press Exit Menu K136 Issue No 2 4 54 DPI 605 User Manual 4 15 3 Replay of AutoCal Log Files
140. ly the external pressure Use the PROCESS function to define any pressure processing which may be required see Section 4 6 2 K136 Issue No 2 4 24 DPI 605 User Manual 4 8 1 Connection of External Pressure Transducers To connect an external transducer to the instrument proceed as follows 20 bar G 21 barA Barometer External e 000 Previous Next None Select 0000 e Plug the transducer into the socket labelled EXT transducer Press the RANGE key Select External F4 Using the Previous F1 and Next F2 keys select the required transducer serial number from the table o Check that the serial number of the external transducer matches the serial number selected in the table o Select the external transducer by pressing the Select F4 key It should be noted that calibration routines for external transducers which includes the specification of serial numbers are given in Section 6 If digitally compensated external transducers are used selection of the plugged in transducer is automatic If None F3 is selected from the External Range Menu the pressure display defaults to reading mV K136 Issue No 2 4 Operation 4 25 4 9 Leak Test To carry out a leak test with the instrument proceed as follows LEAK TEST o Open the Vent Valve 2 to depressurise the A Start instrument A Wait Time o Connect the system or device under test to the ee Pressure Port
141. m page A 20 INFO Leaktest Results INFO Spec 0 0100 psi min PASS DIMENSION PRESSURE TYPE EXPLICIT UNITS psi TRANSDUCER_FS 290 0755 TRANSDUCER_TYPE GAUGE DIMENSION ELECTRICAL TYPE EXPLICIT UNITS VOLTS DIMENSION VOLTSOUT TYPE EXPLICIT UNITS VOLTS DIMENSION TIMESTAMP TYPE EXPLICIT DATA ACAL VALUES 0 0005 0 00002 5 000 15 40 19 0 0004 0 00001 5 000 15 40 20 0 0003 0 00001 5 000 15 40 22 0 0004 0 00001 5 000 15 40 24 0 0004 0 00001 5 000 15 40 25 0 0005 0 00001 5 000 15 40 27 0 0005 0 00005 5 000 15 40 28 0 0004 0 00004 5 000 15 40 29 INFO BSL Results INFO Rslt 0 0059 Spec 0 1 FS PASS INFO Ofst 2 8e 05 V Grad 0 071 V psi K136 Issue No 2 i gt A 22 DPI 605 User Manual e Example 2 The example below conveys the following details File ID Druck PTX500 Serial Number 987654321 No PIN protection for deletion of the Test Program and therefore of associated Results Files In the Header Block the following details are shown Full Scale 7 bar Type gauge Note Not to be tested on Sundays The setup block does the following things Sets the instrument to internal pressure range Sets the pressure units to bar Selects the ammeter as opposed to the voltmeter thermometer Turns on flow processing Square rooting of the ammeter reading Sets the Voltage Output to 24 Volts without turning it on or bringing it ont
142. mand they are the measurand value corresponding to zero percent the measurand value corresponding to 100 percent CALCULATE lt 2 gt FORMAT is used to select which of the mutually exclusive Processing functions is activated The possibilities are NONE PERCENT DEVRDNG DEVPUNITS DEVFS DEVEUNITS CALCULATE lt 2 gt STATE is used to turn the selected processing functions ON and OFF K136 Issue No 2 E Ho B 14 DPI 605 User Manual CALCULATE lt 2 gt DATA returns the pressure or electrical reading effectively the same as the READ command CALCULATE lt 2 gt PEAK provides access to the Peak function found under the Process key Note that this is not mutually exclusive with the other processing functions INPUT lt 2 gt provides access to the Flow Zero Filter and Tare functions found under the Process keys of the instrument For example INPUT1 FILTER LPAS STATE ON would turn on the filter on the pressure reading and INPUT2 TARE 4 0 INPUT2 TARE STATE ON would set the electrical Tare value to 4 and turn it on on whatever range was currently selected for display on the electrical side of the instrument SENSE LEAKTEST provides access to setting up the Leak Test mode of the instrument and also to the results of a Leak Test SENSE SWITCHTEST provides access to setting up the Switch Test mode of the instrument and also to the results of a Switch test SENSE TEMPERATURE K136
143. mber prompt enter the P I N number to gain access to the user Cal Test menu as follows User Cal Test Menu Cal Test New Pin Keyboard F1 F2 F3 F4 These three options Cal F1 Test F2 and New Pin F3 provide access to the instrument s calibration Cal Test and selection of anew P I N number new Pin routines CAUTION IT SHOULD BE NOTED THAT THE FACILITIES UNDER THE TEST F2 KEY ARE POWERFUL FAULT FINDING AIDS MISUSE OF THE FACILITIES WILL CAUSE SERIOUS DAMAGE TO THE INSTRUMENT THEY SHOULD THEREFORE ONLY BE USED BY TRAINED SERVICE PERSONNEL K136 Issue No 2A EE 6 2 DPI 605 User Manual 6 1 Selection of New P I N Number Access to all the calibration and test routines are protected by a P I N number Initially on delivery P I N number 123 is installed The P I N number can be changed by the New Pin option of the user Cal Test menu To change a P I N number proceed as follows e e Switch the instrument ON Press the SET UP key Select Cal Test from the Set up menu by pressing the F4 function key Enter the existing P I N number and press ENT Select New Pin from the user Cal Test menu by pressing the F3 function key The instrument now prompts for a new P I N number a typical dialogue being shown below The numbers shown in brackets e g lt 27 gt represent keyboard entries made by the operator followed by operation of the ENT key located on the numerical keyboard Ent
144. mbination of both Alpha character are entered by means of the Alpha T F1 Alpha F2 e F3 and F4 keys Alpha F1 scrolls forward through the alphabet and Alpha F2 backwards Shifting right to the next character position or left to a previous character position is achieved by the F4 and lt F3 keys respectively Numeric entries are added directly from the numeric key pad The full alpha numeric text is added to the file by pressing the ENT key o Following entry ofthefile ID the instrument prompts for a transducer serial number Alpha numeric followed by the full scale deflection FSD of the transducer under test and the type of transducer Absolute Gauge or Differential The instrument then enters the logging mode An example of a typical dialogue sequence is shown below After each prompt the relevant numerical figures should be entered on the keyboard followed by ENT e g ID number AST 471 Transducer SN lt CER 162 gt Enter FSD of transducer lt 5 gt Transducer Type F2 Gauge After completion of data entry the pressure calibration tests on the device under test are carried out and at each pressure the instrument will record all the measured parameters currently on the display every time the AutoCal Log key F1 is pressed Using the Hand pump calibrator versions or by external pressure control indicator versions increase the system pressure until the first calibration pressure is obtained U
145. ment Clock Time and Date nenn 4 6 Display Contrast a Eee 4 7 AULO EE 4 8 Ne 4 8 LIQ dE 4 8 4 5 2 Setup UNilS s sn2 2A anhand 4 9 4 5 3 Set up Data Communications se sseeeeeseeeeeeneeeeneeeneereenetneeneenarnnenn nena 4 11 4 5 4 Select Printer and Print Screen ss 4 13 4 5 5 Pressure Display Resolution uuur224u4Hsnnnen nun nennen nnnnnnnnnnnen nennen ernennen 4 14 4 5 6 Change On State iii 4 15 4 6 Generating a Pr ssure rissrtidie ins EES nine 4 16 4 6 1 Set Pressure Alarm and Safety Limite 4 18 K136 Issue No 2 Contents vii 4 6 2 Selection of Pressure Process Functions nennen 4 19 E IEN 4 19 STEE 4 20 KEE 4 21 Filter near 4 21 PONS en pe ue 4 22 4 7 Generating a Vacuum iii 4 22 4 8 Measuring a Pressure sine 2er 4 23 4 8 1 Connection of External Pressure Transducers c ccceeeeseeeeeeeneeeeeeeaes 4 24 4 9 Leak TEST 2 ein ee ist tel ne 4 25 4 10 Generating an Electrical Output 4 26 4 11 Generation of Output Voltages or Currents Prog Output 4 26 4 12 Set an Analogue Output Proportional to an Indicated Measurand 4 27 4 13 Pressure Switch One EE 4 29 4 14 Temperature Measurements cccesccceeeseneeeeeeceeeeneeenseneeeeseeeneseeeeeeneneertaces 4 31 4 15 Data Og eine ee A eee eerie 4 32 4 15 1 Use of Data Log Directory and Delete Utilities A 4 33 4 15 2 Data Log Record Operations ccccecceeeeeceeeeeeeeceeeeeeeceeeseeeeeeeseeeseeetenees 4 34 4 15 3 Data
146. n each time Alternatively a location can be directly GE entered via the keyboard and will be displayed when ENT is pload i A pressed At the end of file the following display is printed A Periodic e g A Next 20 of 20 End AY 28000 Previous Next 16 08 57 05 08 92 K136 Issue No 2 4 44 DPI 605 User Manual e Graph Selection of the Graph option F2 permits the operator to choose a graphical output of the selected Data Log file to the display The options available are selected by the function keys F1 to F3 as follows PvT Pressure v Time F1 EvT Electrical v Time F2 PvE Pressure v Electrical F3 Selection of one of these function keys e g PvT F1 will display an appropriate graph as follows e g Graph of Pressure V s Elapsed Time DATA LOG Record Replay Directory Delete 9 20579 o0 eo Display Graph Bar Print Upload oomoo PvT A EvT A PvE gt 3 77796 0 Seconds 10 To return to the graph selection menu after displaying the required data press EXIT menu e Print Selection ofthe Print option F3 causes alldata associated de Rekord with the selected replay file to be down loaded to a printer e Replay To make use of this option a printer must be connected to a the RS 232 interface The instrument software supports two types of printer a 40 column portable printer and an 80 GE column printer The printer types are set up u
147. n the Data Logger can also be programmed to start either immediately now at a future period intime later or following any one of anumber of external events condition The function associated with the periodic Trigger Mode are described in Section 3 Figure 4 3 shows the sequence of parameter selection for the Periodic Mode and Fig 4 4 typical summary screen displays K136 Issue No 2 4 36 DPI 605 User Manual 4 15 2 Data Log Record Operations Contd SELECT PERIODIC ENTER PERIOD HRS MIN SEC SELECT STOP EVENT STOP TIME F1 SAMPLES F2 ENTER ENTER STOP TIME NUMBER HRS MIN SEC SAMPLES SELECT START EVENT CONDITION F3 LATER F2 SWITCH F1 LOGIC F2 THRESHOLD F3 SELECT SELECT SOURCE ENTER STATE OF OF THRESHOLD START TIME SWITCH TRIGGER HRS MIN SEC PRESSURE F1 ELECTRICAL F2 a a L Gi L Gi z a u u ENTER ENTER amp a THRESHOLD THRESHOLD 9 3 LEVEL LEVEL O u Q SELECT SELECT TRIGGER TRIGGER DIRECTION DIRECTION Ej E z z z E lt E g a g Q z ZS 2 v L v v L Datalog Parameters Logging Trigger Start Stop Summary Screen File ID Continue Figure 4 3 Periodic Mode K136 Issue No 2 4 Operation Data Log Parameters Stop 14 00 File ID CERO1 Continue Data Log Parameters Thre
148. nder the Set m Print up option for Defaults The instrument automatically formats en the output file for the type of printer in use A typical printout is as follows K136 Issue No 2 4 Operation 4 45 Calibration Certificate Test Equipment DPI 605 Serial No 0 DPI 605 S W Version 0 53 Last Cal Date 17 04 92 Pressure Range 20 bar g Device Under Test File Identity 2 Date 14 07 92 Time 9 55 52 Serial Number 11234 DUT Full Scale 20 00000 File Type AutoCal File Test Results PRESSUREELECT TIME bar Milliamps 0 61675 0 007 9 55 53 0 59540 0 007 9 55 56 0 54291 0 007 9 56 00 0 51893 0 007 9 56 03 Printed 9 57 42 14 07 92 Authorised Note In the event of any problems encountered the Print operation can be aborted by operation of the Exit Menu key e Upload Selection of Upload option causes all data associated with Period the selected Data Log file to be uploaded to an external e Replay system via the RS 232 port This fileis sentas ASCII text and o Directory o Delete as such is readily readable and importable into common SEN spread sheets such as Microsoft Excel etc The RS 232 port a Geek is configured from the Set up menu under the Defaults o Print Comms options m Upload Note In the event of any problems encountered the Upload operation can be aborted by operation of the Exit Menu key K136 Issue No 2 4 46 4 16 DPI 605 User Manual Use o
149. ndustry standard 9 pin D type connector commonly found modern computers Prior to connecting the instrument to a computer the parameters of the RS 232 port shouldbe set to match those of the computer e g baud rate parity handshaking Once the connection has been established two possible techniques for gathering files from the instrument are available Upload Ifthe communication channel into the computer can be held open i e computer waiting to receive data then use of the Upload feature to be found in the Data Log and AutoCal modes will cause a file of data to be sent from the instrument The file is sent as ASCII text and as such is readily readable and importable into common spread sheets such as Microsoft Excel Full details of the use of Upload can be found in the Section of this manual detailing the Data Log and AutoCal modes of the instrument Sections 4 14 and 4 15 Dialogue The communications dialogue between the DPI 605 instrument and an external system is carried out over the RS 232 interface using the SCPI protocol Appendix B ofthis handbook detailsthe SCPI protocol and command structure Figure 4 8 RS 232 Pin out K136 Issue No 2 4 Operation 4 59 4 18 Memory Reset Option The memory used for storage of Data Log and AutoCal Results files is non volatile andis very resistantto corruption many precautions against corruption having been incorporated within the design of the instrument Howe
150. new conversion factor K136 Issue No 2 4 Operation 4 5 3 e Temperature Instruments are supplied with their temperature scales set to degrees Celsius C To change the default setting proceed as follows SET UP e o o o ooog gt Cal Test Pressure Defaults Battery Status Units Comms Clock More Spec l Temp e e Switch the instrument to ON Press the SET UP key Select Defaults F1 from the Set up menu Select Units F1 from the Defaults menu Select Temperature F3 from the Defaults Units Selection menu Selectthe required temperature units C F1 or F F2 from the Select Temperature Units Menu Set up Data Communications e Comms To set up the instrument s data communications parameters proceed as follows SET UP ooo Defaults Battery Status Cal Test oomoo GE Baudrate Units Comms Clock More Parity Handshake Scpi 4 Switch the instrument to ON Press the SET UP key Select Defaults F1 from the Set up menu Select Comms F2 from the Select Default Settings menu Selecting Comms from the Default Settings menu provides a status report of the currently set Comms parameters and the facility to set up the Baudrate F1 Parity F2 Handshake F3 and Scpi F4 parameters of the RS232 communications protocol e g Baudrate 9600 Baudrate parity none HS Hardware Parity Handshake Scpi
151. ng Primary Cells from Serial number 1607 Figure 2 5 As an alternative to its internal rechargeable battery pack the instrument may be fitted with D size primary cells Alkaline cells are recommended To replace the internal rechargeable battery pack with D size primary cells proceed cells e e ENSURE THAT THE EQUIPMENT IS SWITCHED OFF Turn the instrument over to expose the battery compartment Remove the Battery Cover 1 by unscrewing the Captive Screws 2 Carefully lift out the rechargeable Battery Pack Fit six D size alkaline cells as shown in figure 2 5 observing polarity as indicated Replace the Battery Pack Cover 1 and tighten the Captive Screws 2 Dispose of exhausted cells thoughtfully alkaline cells contain toxic materials K136 Issue No 2 HS ON 2 Installation 2 11 NiCad Pack Removal Replacement Dry Cell Fitting Key Battery Compartment Cover Tamper Proof Captive Screws Approved Type Alkaline Cells 6 off Battery Compartment USE ONLY APPROVED TYPES OF CELL REFER TO SECTION 2 1 3 PAGE 2 5 Figure 2 5 Battery Removal and Replacement Later Versions K136 Issue No 2 2 12 DPI 605 User Manual 2 1 6 Communication Interface Connections The communications dialogue between the instrument and an external computer system or printer is carried out over an RS 232 interface using the SCPI protocol The instrument is fitted with aLemo connector and
152. njunction with function keys F1 to F4 to select an internal or external pressure transducer and if the barometric option is fitted absolute gauge or barometric pressure readings NOTE The external and barometric options are not extended to the function keys unless the relevant sensors are fitted or connected All pressure processing e g Tare is cancelled if a new range is selected e Units Used in conjunction with function keys F1 to F4 to select one Pree of four pressure units for display A choice of any one of 24 pressure units is assigned to the F1 F4 function keys under SET UP refer to Section 3 11 3 e Limits Used in conjunction with the F1 and F2 function keys and Pressure 7 the numeric Key pad to define the Alarm and Safety Limits for the instrument The maximum setting of the safety limit is 22 bar The maximum setting of the alarm limit is 700 bar The safety limit is always active but the alarm limit can be enabled and disabled Crossing the K136 Issue No 2 3 Familiarisation 3 11 safety limit causes a pneumatic valve to close blocking the pump action and thereby preventing further pressurisation Pressing the Exit Menu key resets the safety limit e Process The process key provides access to the following functions via the function keys o Tare fo Pressure Peak Pressure FS Pressure Filter Pressure
153. nsducers and to the pressure mode o Press the UNITS key Select the required pressure units from the four units displayed by pressing the associated function key F1 F2 F3 or F4 If the required units are not displayed refer to SET UP section 4 5 2 o If required press the LIMITS key and use the function keys to define the Alarm F1 and Safety Limits F2 for the test to be conducted o Ensure that the Vent Valve 2 is open and connect the device or system under test to the Pressure Port 5 Note the Pressure Port 5 has arotatable coupling with spanner flats provided Slacken off the locking ring to allow the coupling to rotate CAUTION ENSURE LOCKING RING IS TIGHTENED BEFORE APPLYING PRESSURE o Set the Volume Adjuster 4 to approximately half way o Zero the pressure display by means of the ZERO key o Set the instrument to pressure by means of the PRES VAC key o Close the Vent Valve 2 o Operate the Hand pump 3 to set up the required pressure Use the Volume Adjuster 4 as a fine adjustment of the output pressure o Use the pressure PROCESS functions as required by the test in progress The process functions are outlined in Section 3 K136 Issue No 2 4 Operation 4 17 a 5 b 6 C d 2 1 Vent Port 1 2 Vent Valve 3 Hand pump 4 3 a Power 4 Volume Adjuster b Temperature Probe 5 Pressure Port RS 232 6 System Connector Panel d Ext Transducer 7 Breather Port 8 Device
154. nt to ON Cal Test Enter Pin Number D o Enter the P I N number 123 on the numeric key pad and press ENT The instrument now displays the Cal Test menu e g Cal Test menu Cal Test New Pin Keyboard o Select New Pin F3 and a prompt is given for a new P I N number e g Enter new Pin number D Enter key alone sets no Pin number K136 Issue No 2 4 6 DPI 605 User Manual 4 5 1 First Time Operation Contd o Enter a new P I N number via the numeric key pad and press ENT o Defaults o Battery SE o At the Verify new Pin number prompt enter the new P I N e Cal Test number via the numeric key pad and press ENT Ifthe new i P I N number is entered correctly the instrumentresponds m New Pin with Verification OK and exits the Set up mode Ifthe new D Keyboard P I N number is entered incorrectly at the Verify New Pin Number prompt the instrument responds with Pin numbers do not agree and exits the set up mode and the old P I N number is retained CAUTION THE INSTRUMENT CALIBRATION CAN BE LOST BY INCORRECT USE OF THE CALIBRATE FACILITY e Instrument Clock Time and Date To set up the instrument Clock Time and Date proceed as follows o Switch the instrument to ON Defaults a o Press the SET UP key The following display prompt will be o Cal Test shown e g o Units ca Comms Set up menu m Clock Mor Defaults Battery Status Cal Test A Time a Dae o Press the F1 F
155. o the screen Brings the Voltage output onto the screen in the off state The test block does the following things Turns on the Voltage Output Displays the message Please check out basic operation Instructs the user to go to 5 different pressures the first of which for example 0 bar 0 2 bar The end block does the following things Displays the message Please disconnect the device under test Turns off the Voltage Output Performs a TSL analysis on the results using a fullscale of 7 bar with a specified permissible maximum deviation of 0 15 bar with the error expressed in electrical units mA because the ammeter was selected for the test Displays the message Dont forget to open the stop valve K136 Issue No 2 A AutoCal A 23 o Example 2 Test Program ADIF Druck PTX500 987654321 IDENTIFY FS 7 Bar T gauge N Not to be tested on Sundays SETUP SENSE PRESSURE RANGE INTERNAL UNIT BAR SENSE CURRENT INPUT2 FLOW STATUS ON SOURCE VOLTAGE 24 SYSTEM KEY VOLTSOUT F3 TEST SOURCE VOLTAGE STATUS ON MESS Please test out basic operation PT 0 0 0 2 PT 3 5 0 2 PT 7 0 2 PT 3 5 0 2 PT 0 0 0 2 END MESS Please disconnect the device under test SOURCE VOLTAGE STATUS OFF TSL 7 0 15 EUNIT ITS A GOOD ONE ITS BAD MESS Dont forget to open the stop valve K136 Issue No 2 i gt A 24 DPI 605 User Manual o Example 2 Print of Result
156. olute Default GAGE NUMERIC_REAL NUMERIC_REAL 1 0000 NUMERIC_REAL NUMERIC_REAL 0 00 NUMERIC_REAL 0 00 NUMERIC_REAL NUMERIC_REAL NUMERIC_REAL DIFFerential GAUGe DPI 605 User Manual SINGLE 0 SINGLE SERIES SERIES SINGLE SINGLE 0 00 SINGLE 1 0000 SINGLE 0 00 SINGLE SINGLE 0 00 SINGLE 0 00 SINGLE SINGLE 0 SINGLE 1 SINGLE SINGLE 0 00 SINGLE 0 00 SINGLE 0 00 SINGLE GAGE FAX 781 665 0780 TestEquipmentDepot com K136 Issue No 2 B SCPI Communications Protocol B 39 peak_data_high NUMERIC_REAL SINGLE 1 00e 011 1 00e 011 0 00 0 00 peak_data_low NUMERIC_REAL SINGLE 1 00e 011 1 00e 011 0 00 0 00 peak_stat BOOLEAN SINGLE Default OFF percent_fs NUMERIC_REAL SINGLE 1 00e 011 1 00e 011 0 00 0 00 percent_zero NUMERIC_REAL SINGLE 1 00e 011 1 00e 011 0 00 0 00 period_hrs NUMERIC_REAL SINGLE 0 00 99 00 0 00 0 00 period_mins NUMERIC_REAL SINGLE 0 00 1 0000 0 00 period_secs NUMERIC_REAL SINGLE 0 00 59 00 0 00 0 00 point_limit NUMERIC_REAL SINGLE 1 00e 011 1 00e 011 0 00 0 00 point_value NUMERIC_REAL SINGLE 1 00e 011 1 00e 011 0 00 0 00 power_stat BOOLEAN SINGLE Default ON powerdown_stat BOOLEAN SINGLE Default ON powertime_val NUMERIC_REAL SINGLE 1 0000 30 00 30 00 presr_unit SUFFIX_DATA SINGLE ATM CMH20 CMHG FAUNIT F2UNIT F3UNIT F4UNIT FTH20 FTH204 HPA INH2O INH204 INHG KG CM2 KG M2 KPA LB FT2 MBAR MH2O MHG MMH2
157. on mark making the query form of the command and instructing the instrument to return a value Commands shown in square boxes have no values associated with them The first few letters of each command are in capitals this is the short form of the command and is returned by the instrument in response to a query For example READ BATTERY returns READ BATT lt value gt The fullcommand should always be used when communicating with the instrument Commands shown in square brackets are default commands This means that they will be assumed to be present when omitted e g READ has the same meaning as READ PRESSURE because PRESSURE is a default command Commands which are shown ending in lt 2 gt are those which can apply to either the electrical capabilities of the instrument or the pressure capabilities When these commands are used they are ended with 1 to indicate pressure and 2 to indicate electrical e g SENSE CURRENT INPUT2 ZERO K136 Issue No 2 Wie B 6 DPI 605 User Manual would select the ammeter and zero it and the following command e g INPUT1 ZERO would zero the pressure range that was selected at the time of issuing the command In fact the number 1 is a default value and so may be omitted therefore INPUT ZERO has the same meaning as the last example K136 Issue No 2 B SCPI Communications Protocol GROOT ISAVE ro EB CSD
158. on to turn off the back light after switch on by providing a facility to automatically switch it off after a preset keyboard selected period This facility is enabled by the Enable F3 option and disabled by the Disable F4 option The default setting gives a period of 5 seconds o Resolution Used to select the number of significant figures displayed after the decimal point Can be set to provide a range of up to 61 2 digits depending upon the type of units selected and is applicable to the pressure reading only o On State This feature provides the operator with the option of having the instrument to power up either inits last set up state as it was switched off or inthe standard default state In the latter state programmed processes e g Tare and Filter would be automatically switched off when the instrument is switched off and any programmed outputs would be disabled K136 Issue No 2 3 Familiarisation 3 25 3 11 3 Set up Contd setup ISPRA ON If the instrument is programmed to Restore Last Set up all enabled features would remain as set except the programmable outputs would become disabled even if they were enabled at switch off e Temperature Probe This feature is used to set the instrument to accept its temperature input from either a PT100 or PT25 Platinum resistance probe The PT100 probe covers the temperature range 55 to 200 C and the PT25 probe 55 to 850 C Filter This
159. operation ofthe No F4 key If a file is password protected following operation of the Yes F3 key a prompt is given for the corresponding password as follows Enter File Protection Number D Enter the password a number within the range 1 to 9999 followed by ENT The file is then deleted It should be noted that if a Tests file is password protected then the corresponding Results file will also be protected by the same password 4 16 2 AutoCal Manual Operations To carry out an AutoCal Manual operation proceed as follows o Select Test F1 from the AutoCal menu Apromptto select Tedi either Manual or Auto is then displayed e g o Replay Director S en y Select type of AutoCal m Manual Manual Auto a Auto A Yes o Select Manual Fi Apromptto log either the current display A Dial Gauge Yes F1 or to have the facility of manually entering a Dial AutoCal Log Gauge reading F2 against the Pressure display is given as Stop follows e g Log current display Yes Dial Gauge K136 Issue No 2 4 50 DPI 605 User Manual Selection of Yes F1 causes Pressure Electrical measurements to be recorded Selection of Dial Gauge F2 permits the manual entry of a pressure level to be recorded against the corresponding instrument pressure reading o A request for a File ID is now presented as follows e g Enter File ID Alpha T Alpha J gt This file number can be either alphabetical numerical or a co
160. ples D Following entry of the required number of samples on the numeric key pad the instrument prompts for a Data Log Start condition to be defined e g Time Data Log Start Now Later Condition By selection of one of these functions Stop Time or Samples the Data Logging operation will commence either immediately Now at a later time Later or following one of a number of external event options Condition These options are Switch Logic and Threshold Section 4 14 fully describes these features When all the Data Log parameters for this option have been defined a summary screen will be presented e g Data Log Parameters Logging Trigger Start Logic Test Log on Periodic time ve edge 00 00 30 Stop 50 Samples File ID AZ376 Continue E Event The Event mode enables the Data Logger to be triggered by external events Three event options are available Now Later and Condition The Now option provides the operator with the facility to manually trigger a log operation each time the Log F1 key is pressed The mode is exited by pressing the Stop F4 key The Later Option permits a future start time to be entered to perform a single shot logging operation at a pre programmed time K136 Issue No 2 o 3 32 DPI 605 User Manual 3 11 5 Data Log Contd The external Condition switching options available under the Event Logger mode are either Switch Logic or Threshold Switch
161. ption Refer to Section 3 11 3 COMMS e Directory The AutoCal Directory option provides access to two directories a Tests directory and a Results directory The relevant directories are selected by the Tests F1 and Results F2 keys Both directories are listed in the order in which the AutoCal operations were carried out For Auto AutoCal this means the order in which the tests were programmed and the results collected Typical directory listings are as follows AutoCal Tests Free Blocks 9212 TS150000000000000001 TS150000000000000002 TS150000000000000008 TS150000000000000032 TS150000000000000033 N1234543670111111112 N1234543670111111113 N1234543670111111114 N1234543670111111115 N1234543670111111116 o Page Up Page Down AutoCal Results Free Blocks 9196 TS150000000000000001 N1234543670111111112 gt 1 TS150000000000000002 N1234543670111111113 gt 1 TS150000000000000008 N1234543670111111114 gt 1 TS150000000000000032 N1234543670111111115 gt 1 TS150000000000000033 N1234543670111111116 gt 1 Page Up Page Down The e g Free Blocks 9196 legend gives an indication of remaining memory space and the first five entries in the directory are displayed The Page Up and Page Down functions allocated to the F1 and F2 keys respectively provide a means of scrolling forward Page Down or back Page Up through the directory listing The Exit Menu key is used to return to the main AutoCal menu Please refer to Section 3 11
162. put Key Functions The two electrical output selector keys are used to configure the electrical outputs as either a fixed voltage or current programmable via the Key pad or an analogue output voltage or current proportional to any measurand i e pressure voltage current or temperature When configured the electrical outputs are taken from the B C andD sockets located on the left hand side of the instrument refer to figure SCH e Volts Electrical Output ES This key configures the instrument to provide an output voltage The output voltage range is programmable by the user within the range 0 to 24 V and can be configured as either an analogue output proportional to any instrument measurand e g pressure temperature or as a programmable voltage level K136 Issue No 2 IR 3 16 DPI 605 User Manual e mA ee This key configures the instrument to source a current output The output current range is programmable by the user within the range 0 to 55mA and can be configured as either an analogue output proportional to any instrument measurand e g pressure temperature or as a programmable single current level Selection of either VOLTS or mA provides the user with a sub menu which allows the output level to be configured as either an Analogue Output proportional to a measurand or a Programmable Output single voltage or current within the range 0 to 24V or 0 to 55 mA The options are as follows
163. re stored The end block does the following things Displays the message Please disconnect the device under test Turns off the Voltage Output Performs a BSL analysis on the results using a fullscale of 10 psi with a specified permissible maximum deviation of 0 1 psi with the error expressed as a percent of fullscale Displays the message Test is now complete K136 Issue No 2 A AutoCal A 17 o Example 1 Test Program ADIF ABCDEFGHIJKLMNOPQR 12345678901234567 P 9999 IDENTIFY N Situated near main boiler feed T gauge FS 10 0 psi NO 100 mV MP 15 0 psi FD 15 3 93 FT 09 35 50 SETUP INFO TEST PROGRAM COMPILED WITH 605 FILE MANAGER NOTE Please enter your employee No SENSE PRESSURE RANGE INTERNAL UNIT PSI SENSE VOLTAGE SOURCE VOLTAGE 5 0 SYSTEM KEY VOLTSOUT F3 TEST END NOTE Enter ambient temperature MESS Please connect device under test SOURCE VOLTAGE STATUS ON MESS Please test out basic operation GT 20 0 1 LEAK 5 10 0 01 PT 0 0 0 1 PT 2 5 0 1 PT 5 0 0 1 PT 7 5 0 1 PT 10 0 0 1 PT 7 5 0 1 PT 5 0 0 1 PT 2 5 0 1 PT 0 0 0 1 MESS All results are stored MESS Please disconnect the device under test SOURCE VOLTAGE STATUS OFF BSL 10 0 1 FS Test Passed Please report failure MESS Test is now complete K136 Issue No 2 Ei gt A 18 DPI 605 User Manual o Ex
164. retained but the output will be switched off To enable the output again press VOLTS or mA as appropriate on the electrical output Key pad followed by the On F3 function key Set an Analogue Output Proportional to an Indicated Measurand To set up the instrument to provide an analogue output proportional to an indicated measurand proceed as follows o Switch the instrument ON by means of the ON OFF key The analogue output will default to OFF Electrical Output o Configure the output for either voltage or current by pressing either the VOLTS or mA key K136 Issue No 2 4 28 DPI 605 User Manual o Select Ana Output F2 and in response to the system e Ana Output prompt Select source of analogue output select either SES Pressure F1 or Electrical F2 Note that for an analogue m Pressure output proportional to temperature Electrical should be Bi Electrical selected Icon shown for pressure A Set up A gn o A set up prompt will now be displayed e g Analogue output Volts Set up On Off o To define the linear relationship between the selected measurand e g Pressure and the analogue output e g Volts press the Set up F1 key A prompt for the lower point of the relationship will be displayed together with the last parameter levels which were set up e g Lower Point D 0 00000mbar 0 0000V o Enter the required level for each parameter on the numeric keyboard and press ENT Press t
165. rovide up to 55 mA current drive from a 19 V source As acurrent sink the instrument will provide a controlled output within the range O to 55 mA from a 30 V source To use the instrument as a voltage or current source the B ve and C ve terminals are used To use the instrument as a current sink the C ve and D ve output terminals are used Following selection of either Volts or mA from the Electrical Output keys selection of the Prog Output option provides a sub menu offering three system facilities Set On and Off m Set When the Set key F1 is pressed the last programmed output level will be displayed together with Up F1 and Down F2 options A typical display is shown below Voltage output setting 5 000V Use a combination of the Up and Down keys to set the required output level or alternatively enter the output level directly from the keyboard followed by ENT When the correct output has been set press the Exit Menu key and enable the output level by pressing the On key Note that if a different electrical output function e g mA is subsequently selected the output is switched OFF and the Set prompt for the newly selected parameter is displayed To disable the output press the Off key F4 K136 Issue No 2 3 20 DPI 605 User Manual 3 11 Mode Select Keys Blue Keys There are nine mode select keys the functions of which are as follows 3 11 1 On Off up DER A ON SETUP LIG
166. rument case below the pneumatics assembly It contains a non replaceable filter element If the instrument is fitted with the Barometric Reference option it is pneumatically connected to this port K136 Issue No 2 IR 3 4 DPI 605 User Manual a 5 O 6 C d 2 1 1 Vent Port 2 Vent Valve 5 Pressure Port 6a RS 232 6 System Connector Panel 6b Temperature Probe 6c Ext Transducer 8 10 7 7 Breather Port 8 Test Connector Panel 9 Keyboard Display 10 Reference Port Figure 3 1a DPI 605 Indicator Controls and Connectors K136 Issue No 2 3 Familiarisation 3 5 Pneumatics Indicator Fig 3 1a The DPI 605 indicator pneumatics comprise the following items e Pressure Port 5 Pressure connection to the device under test e Vent Valve 2 Used to restore the output pressure vacuum to atmospheric pressure Clockwise rotation closes the valve anti clockwise rotation opens the valve e VentPort 1 System pressure vents via an aperture drilled through the centre of a strap Securing Boss 1 e Reference Port 10 The reference port for the internal sensors is located on the front face of the instrument case below the pneumatics assembly It contains a non replaceable filter element If the instrument is fitted with the Barometric Reference option it is pneumatically connected to this port K136 Issue No 2 3 6 3 3 DPI 605 User Manual Electrical Connection
167. ry proceed as follows e o Atthe External Transducer directory referto Paragraph 6 3 position the cursor at an Undefined location and press Select F4 If all locations are occupied one location will need to be deleted by means of the Delete F3 key Select FS Type SN F3 from the External Pressure Transducer Cal menu Select FS F1 and enterthe full scale reading of the transducer on the numerical key pad and press ENT Select Alter Type F2 and select transducer type by pressing Absolute F1 Gauge F2 or Differential F3 as required Select Serial No F3 from the External Pressure Transducer Cal menu Enter the serial number of the transducer on the numeric key pad and press ENT Press Exit Menu The External Transducer menu is now displayed from which the newly specified transducer can now be selected K136 Issue No 2 EE 6 12 DPI 605 User Manual K136 Issue No 2 A AutoCal APPENDIX A AUTOCAL A 1 K136 Issue No 2 i gt A 2 DPI 605 User Manual The following sections provide a definition of the functionality provided by the AutoCal feature of the DPI 605 PURPOSE AutoCal essentially provides the user with the ability to store results records of displayed values in a file with a defined file identity The file can then be printed or uploaded via the RS 232 port to a computer for storage or analysis OPERATION Two basic modes of operation are provi
168. s Blue Keys ss 3 20 OWON repeater en tree peer eee 3 20 Display Lights EE 3 20 SERUp EE 3 20 DOP AUS sirnik EE 3 20 COMMS rsrsr eegen 3 22 Ee 3 23 Printer een 3 23 COMMAS beer ted 3 23 e 3 24 RU Le Te EE 3 24 ON Slate ee E Nes 3 24 Temperature Probe ss 3 25 Se 3 25 SNE 3 25 TEE 3 26 EE Eee ee te Ee 3 26 Keyboard locking Facility A 3 26 Test Equipment Depot 800 517 8431 99 Washington Street Melrose MA 02176 FAX 781 665 0780 TestEquipmentDepot com K136 Issue No 2 vi DPI 605 User Manual 3 11 4 SWIN EE 3 28 3 11 5 Data L09 BEE 3 28 Ber E 3 29 Selection of Data Log Trigger Mode 3 29 KEE 3 33 Graphe rei einen 3 34 Pin GE 3 34 Upload WEE 3 34 Directory EE 3 34 Memory Space sorires noiosi aen edie ener eects 3 35 Delete tires Nieren 3 36 3 11 6 EE 3 37 3 11 7 Le 3 37 3 11 8 eee Bed een EE EE 3 38 3 11 9 AUtOG al sec sen ir Ra een sien din 3 38 RE 3 38 ET UE 3 39 Te EE 3 41 RE 3 41 BD EE 3 42 Ee EE 3 42 Nd 3 42 Uploads ee D D 3 43 Birect fty EE 3 43 Delete aan ee ee ale 3 44 4 OPERATION eos enlgerkieret 4 1 4 1 KO EE 4 1 4 2 ET 4 1 4 2 1 Menu Icons inter EES EE 4 2 4 3 Installationen see ea 4 2 4 4 SWitChing ONsand ORF E 4 3 Check Battery Status nici annenin inin in Aeae ii 4 3 Care of Rechargeable Batteries 20 0 0 ececeeeeeeeeeeeeeeeeeeeeeeeseeeetneeeeeeennees 4 3 4 5 UE teil EE 4 4 4 5 1 First Time OperatiO LEET 4 5 el EE 4 5 Instru
169. s All electrical connections to both the calibrator and indicator instruments are made via the panels 6 and 8 located on the sides of the instrument as shown in Fig 3 1 and 3 1 a The connections made via these panels are as follows e System Connector Panel Located on the right hand side of the instrument item 6 Fig 3 1 and3 1a The connections made via this panel are shown below CE CH C EXT TRANSDUCER RS 232 TEMPERATURE PROBE The sockets are allocated as follows o Mains adaptor charger POWER o Temperature probe TEMPERATURE PROBE o RS 232 serial data interface RS 232 o External transducer EXT TRANSDUCER Device Under Test Connector Panel Located in the left hand side of the instrument item 8 Fig 3 1 and 3 1a The connections made via this panel are shown below a SWITCH a V I OUTPUTS ge DM i 66000 These sockets should be considered as two functional groups Depending on the selected mode the first group A B C and D provide either the programmable voltage current outputs B C amp D switch test input A B trigger signal input A D or electrical output C D Test Equipment Depot 800 517 8431 99 Washington Street Melrose MA 02176 K136 Issue No 2 3 Familiarisation 3 7 The second group I COM and V provide the inputs to
170. s File Calibration Certificate Test Equipment DPI 605 Serial No 0 DPI 605 S W Version 2 00 Pressure Range 20 0 Bar Device Under Test File ID Druck PTX500 Serial No 1987654321 gt 1 Date 18 03 93 Time 13 54 17 Device Type gauge DUT Full Scale 7 00000 TSL Results Rslt 0 095 Spec 0 15 mA PASS Ofst 5e 94 mA Grad 1e 99 mA bar Test Results PRESSURE ELECT VOLT O P TIME bar mA V 0 00005 0 093 24 000 13 54 50 0 00005 0 093 24 000 13 54 51 0 00005 0 093 24 000 13 54 52 0 00005 0 094 24 000 13 54 53 0 00005 0 095 24 000 13 54 54 Printed 14 29 29 18 03 93 Authorised Test Equipment Depot 800 517 8431 99 Washington Street Melrose MA 02176 FAX 781 665 0780 TestEquipmentDepot com K136 Issue No 2 A AutoCal A 25 o Example 2 Upload of Results File Calibration Certificate Test Equipment DPI 605 Serial No 0 DPI 605 S W Version 2 00 Pressure Range 20 0 Bar Device Under Test File ID Druck PTX500 Serial No 987654321 gt 1 Date 18 03 93 Time 13 54 17 Device Type gauge DUT Full Scale 7 00000 TSL Results Rslt 0 095 Spec 0 15 mA PASS Ofst 5e 94 mA Grad 1e 99 mA bar Test Results PRESSURE ELECT VOLT O P TIME bar mA V 0 00005 0 093 24 000 13 54 50 0 00005 0 093 24 000 13 54 51 0 00005 0 093 24 000 13 54 52 0 00005 0 094 24 000 13 54 53 0 00005 0 095 24 000 13 54 54 Printed 13 55 23 18 03 93 Authorised K136 Issue No 2 Ei gt A 26 DPI 605 User Manu
171. se the volume adjuster calibrator only to obtain the exact value required If using the Dial Gauge option enter the dial gauge reading on the numeric key pad and press ENT Test Equipment Depot 800 517 8431 99 Washington Street Melrose MA 02176 FAX 781 665 0780 TestEquipmentDepot com K136 Issue No 2 4 Operation 4 51 Record all measured parameters at this calibration pressure by pressing the AutoCal Log key F1 Using the Hand pump calibrator versions or by external pressure control indicator versions increase the system pressure until the next calibration pressure is obtained entering dial gauge reading if selected at each new pressure Press the AutoCal Log key F1 to store the data Repeat until all the required calibration pressures have been logged At each way point the number of points taken during the calibration run is indicated on the display e g Manual AutoCal 12 8 35 40 28 02 93 AutoCal Log Stop To terminate the logging sequence press the Stop F4 key After completion of the logging sequence three options for analysing the results are available These are Best Straight Line BSL selected by F1 and Terminal Straight Line selected by F2 and Absolute Straight Line ABS selected by F3 For each function the maximum deviation from the straight line is obtained by pressing the Results F2 key The electrical offset and gradient of the straight line are obtained by pressing th
172. shold 10 0000 bar 20 samples File ID CERO2 Continue Data Log Parameters Switch Test Open at 14 50 File ID CERO3 Continue Logging Trigger Logon Periodic time 00 00 20 Logging Trigger Logon Periodic time 00 00 30 Logging Trigger Logon Periodic time 00 00 30 4 37 Example 1 After Continue F1 has been pressed will log at 20 sec intervals from present time terminating at 14 00 Example 2 After Continue F1 has been pressed will log at 30 sec intervals starting when pressure rises through 10 bar Stop after 20 samples have been taken Example 3 After Continue F1 has been pressed will log at 30 sec intervals starting when switch contacts connected between A and B first open Stop at 14 50 or following Stop command F4 from key board Figure 4 4 Typical Periodic Mode Summary Screens K136 Issue No 2 4 38 DPI 605 User Manual 4 15 2 Data Log Record Operations Contd Data Log Parameters Start at 14 30 Stop 12 Samples File ID CERO4 Continue Data Log Parameters Start Logic Test ve edge Stop 50 Samples File ID CERO5 Continue Logging Trigger Logon Periodic time 01 00 00 Logging Trigger Logon Periodic time 00 01 00 Example 4 After Continue F1 has been pressed will log at 1 hourly intervals commencing at 14 30 Stop after 12 Samples or following the Stop command F4 Logger would usually be
173. splay Test current sourcing Data Log Trigger Input Table 5 1 Typical Calibration Configurations EXCITATION 24 V MAX SES 2e ae oo SE DEVICE UNDER TEST PRESSURE OUTPUT Figure 5 1 Pressure to Voltage Transducer Calibration K136 Issue No 2 5 Applications 5 3 DPI 605 FOR S EXTERNAL TRANSDUCER B Doo RANGE EXTEND BE gt COOC EXTERNAL 200 z PRESSURE PH ser o O a z EXCITATION 24 V MAX TO PROVIDE ALTERNATIVE PRESSURE RANGE DEVICE UNDER TEST Figure 5 2 Pressure to Voltage Transducer Calibration External range SOURCE VOLTAGE 24 V MAX DEVICE UNDER TEST PRESSURE OUTPUT Figure 5 3 Pressure to Current Transducer Calibration K136 Issue No 2 E Eco 5 4 UNIT UNDER TEST EXTERNAL PRESSURE SOURCE CONTROLLED PRESSURE 20 BAR MAX DPI 605 User Manual B es Leni GES Es co Ee oJU Elens KS Figure 5 4 Voltage to Pressure Transducer Calibration EXTERNAL PRESSURE SOURCE A CONTROLLED PRESSURE B Druck IOC ODO CC OCH DODO CC m EE g LT A I A Ke Le Figure 5 5 Current to Pressure Transducer current sourcing
174. splays pressure and electrical readings it is ready for operation A Low Battery warning is given when the internal rechargeable battery pack or alkaline batteries if fitted are approaching exhaustion An approximate operating time of 1 minute is left when the Battery Low warning is given e Check Batiery Status The DPI 605 IS calibrator and indicator instruments are powered either by an internal rechargeable Nicad pack or by Alkaline D Cells The battery status can be checked from the Setup menu as follows o Select Setup by pressing the Setup key Defaults ed o Select Battery F2 fromthe Setup menu The battery status ne will now be indicated e g Battery 7 88 V Good When a battery poor indication is given or the battery warning indicator is displayed if alkaline batteries are fitted replace them If a rechargeable battery pack is fitted either plug in the charger or replace the battery pack Details for the charging of the internal NiCad pack or the fitting of Alkaline batteries are given in Section 2 e Care of Rechargeable Batteries The instrument is fitted with an internal rechargeable battery pack The battery pack is fitted with its own connector and is equipped with an internally mounted thermal fuse The fuse is self resetting The following general precautions should be observed with rechargeable batteries o NEVER SHORT OUT THE BATTERY TERMINALS o Do not leave a battery in a discharged state
175. sue No 2 fee B 20 DPI 605 User Manual FUNCTION LISTING APR HR RIRE SPECTRUM SOLUTIONS SCPI INTERPRETER Copyright 1991 1992 Title PARSER DRUCK2 MAP z AE AE e RE AE AEE E AEAEE AE E AE AEAEE ERE AE AEE RE EAE AE EAEE EEE FUNCTION NAME SS_cls_cmd ESE SS_ese_cmd StatusEnable NUMERIC_INT SINGLE ESE SS_ese_qry ESR SS_esr_qry IDN DG dm om OPC SS_opc_cmd OPC SS_opc_qry RST SS_rst_cmd SRE SS_sre_cmd ServiceReg NUMERIC_INT SINGLE SRE SS_sre_qry STB SS_stb_qry TST SS_tst_qry WAI SS_wai_cmd K136 Issue No 2 B SCPI Communications Protocol B 21 ACC autocal_ acc cmd acc_str STRING SINGLE BSL autocal_bsl_cmd acal_bsl_fs NUMERIC_REAL SINGLE acal_bsl_dev NUMERIC_REAL SINGLE acal_bsl_type ENUMERIC SINGLE bsl_pass_str STRING SINGLE bsl_fail_str STRING SINGLE CALCulate DATA Header Suffix 2 1 calc_data_qry calc_data_value NUMERIC_REAL SINGLE CALCulate FORMat Header Suffix 2 1 calc_format_cmd calc_form ENUMERIC SINGLE CALCulate FORMat Header Suffix 2 1 calc_format_qry CALCulate KMATh DEViation Header Suffix 2 1 1 deviation_cmd lower_pressure NUMERIC_REAL SINGLE lower_electrical NUMERIC_REAL SINGLE upper_pressure NUMERIC_REAL SINGLE upper_electrical NUMERIC_REAL SINGLE CALCulate KMATh DEViation Header Suffix 2 1 1 deviation_qry CALCulate KMATh PERCent Header Suffix 2 1 1 percent_cmd percent_zero
176. supplied with aLemo to 9 pin D Type adaptor Figure 2 6 gives details of the two connector pin outs and Table 4 1 shows details of the connector interconnections and their relationship to the RS 232 protocol signals The instrument is configured as Data Circuit Terminating Equipment DCE Control Line Computer Printer Connector Type Connector Type Instrument Signal RS 232 Function Direction Terminology 25 Way D Pin No a RME el f gt fw fe Js ee ae NEN wef e RC EE ES Pulled 2 RLSD 8 internally DCD Not Used 20 Pulled high DCH 6 internally DCE Ready Equipment Connector Connector Chassis Shell Shell GE Table 2 1 RS 232 Connections K136 Issue No 2 2 Installation 2 13 p Pin 6 1 5VD Pin 2 Pin 7 E E2 CLK Pin3 i 3 E2 DATA Pin 4 Pin 8 4 AO ck Pin 9 ER A1 Pin 5 10 OVD 11 Temp Sense Diode ve 12 Temp Sense Diode ve 5 OVA Bridge Supply ve 6 Bridge Output ve 7 Bridge Output ve 8 Bridge Supply ve Digitally Characterised Only 9 Pin D Type Socket Front View Lemo Free Part Rear View Figure 2 6 RS 232 Connectors e Connection Method To connect the RS 232 interface to an external computer system or printer plug the RS 232 adaptor into the RS232 Lemo socket located on the right hand test panel Connection of External Transducers A ENSURE THAT THE EXTERNAL TRANSDUCER TO BE EMPLOYED IS COMPATIBLE WITH THE PRESSURE MEDI
177. sure unit operation K136 Issue No 2 4 10 DPI 605 User Manual 4 5 2 Set up Units Contd e Spec l The instrument has the facility to enable the operator to set up a special conversion factor for the pressure reading When the special factor is selected the display pressure units are in Pascals The default setting of the Pascals to Spec l conversion factor is 100 scaling the pressure display in hPa By entering aconversion factor Pascals to Spec l unit factor under Set up the instrument can be made to read any required unit To change the default setting of the Special factor proceed as follows Switch the instrument to ON e Defaults SE o Press the SET UP key o Cal Test e Units o Select Defaults F1 from the Set up menu D Comms o Clock z o More o Select Units F1 from the Defaults menu a o Select Spec l F2 from the Default Units Selection menu A Temp The instrument now displays a prompt showing the current conversion factor and requesting entry ofanew factor e g Pascals to Spec l Factor EI 100 00 o Entertherequired conversion factor on the numeric keypad and press ENT o Press Exit Menu four times to exit Set up o Assign a function key to Spec l and select Units on the Pressure keypad and select Spec l NOTE If the Spec l conversion factor is changed whilst the Spec l Units factor is selected the Spec l Units factor will have to be re selected in order to make use of the
178. t temperature measurements proceed as follows f NOTE If TEMP is selected and probe is not eil Input Oo Select TEMP on the Electrical Input Panel connected or improperly connected the display will read e g Not Connected C K136 Issue No 2 4 32 DPI 605 User Manual 4 15 Data Log The Data Log Record option of the instrument enables it to store a large number of complete screens The function has two basic modes of operation Record and Replay To perform a Data Log operation proceed as follows o Switch the instrument ON o Set up the instrument to display the required pressure and electrical measurands ep ON o Press the DATA LOG key Selection of this function displays the Data Log Menu as follows e g Data Log Menu Record Replay Directory Delete o To obtain a listing of the Data Log File names already used press the Directory key F3 Refer to Section 4 15 1 for use of this utility o Select Record F1 from the Data Log Menu A prompt to continue with the Data Log function or to Quit is now given e Record o Replay e g o Directory o Delete Will log the current display 14 50 46 a Continue Continue Quit D Quit Periodic o Pressthe Continue F1 function key A file number is first A Event requested followed by a dialogue prompting for required start and stop parameters Refer to Section 4 15 2for details for the operation of the Data Log Record Mode o For
179. t when required After the Test Programis downloaded to the instrument it can subsequently be executed Results obtained during the execution of a Test Program are stored in a Results File The file on the instrument is identified by File ID and Serial Number The first Results File created on the instrument for a given Test Programhas a gt 1 symbol appendedto the Serial Number This serves as an as found marker Results Files marked in this way are never overwritten by Results Files produced by subsequent executions of the same Test Program If the same Test Program is executed a second time the Results File created is identified by the same File IDand the same Serial Number but the Serial Number has a gt 2 symbol appended This serves as the as left marker Results Files marked in this way are always overwritten by Results Files produced by subsequent executions of the same Test Program The Results File and Test Program can then be uploaded to the computer for storage or analysis One field in each Test Program controls deletion by instrument key press of the Test Program itself and any associated Results Files If a PIN number is specified in this field the PIN number is required to facilitate deletion If no PIN number is specified then deletion may be made freely Itis possible to delete any Test Programand any Results File in the instrument from the computer using the PIN number if specified K13
180. the instrument o Remove the Battery Connector 4 from the socket located on the underside of the battery pack o Fit Battery Connector 5 into the replacement battery pack o Fit new Battery Pack 3 into the battery compartment o Tighten the battery pack Securing Screws 2 K136 Issue No 2 2 Installation 2 7 e Fitting Primary Cells to serial number 1606 As an alternative to its own internal rechargeable battery pack the instrument can be fitted with D size primary cells Alkaline cells are recommended To replace the internal rechargeable battery pack with D size primary cells proceed as follows o ENSURE THAT THE EQUIPMENT IS SWITCHED OFF o Turn the instrument over to expose the battery compartment o Remove the Battery Cover 1 by unscrewing the Captive Screws 2 o Carefully lift out the Battery Pack 3 taking care not to strain the Lead 4 and its Connector 5 o Remove the Battery Connector 5 from the underside of the battery pack and stow the Lead 4 in the well provided in the base of the battery compartment o Fit six D size alkaline cells as shown in Fig 2 4 observing polarity as indicated o Replace the Battery Compartment Cover 2 o Dispose of exhausted cells thoughtfully alkaline cells contain toxic materials K136 Issue No 2 2 8 DPI 605 User Manual 2 3 View of battery compartment showing re chargeable pack View of Battery Compartment S
181. the instrument s built in digital multimeter DMM Current inputs up to a maximum of 55 mA d c are applied between the common COM and terminals Voltage inputs up to a maximum of 50 V d c are applied between the COM and V terminals The voltage function of the DMM is auto ranging 3 4 Display Figure 3 2 shows the display and part of the keyboard of the DPI 605 instrument Functionally the display section is divided into two windows one representing pressure measurements and the other electrical and temperature measurements Pressure Window Electrical Window Measurand Range INT FS 20000mbar VOLTMETER FS 50V 0 39000 ie 0 24 w Measurand e g Dialogue Line Select Pressure Transducer Key Annunciators j 20 Barg 21 Bar Abs Barometer External EICHE Figure 3 2 DPI 605 Display K136 Issue No 2 IR 3 8 3 5 DPI 605 User Manual Inthe Data Log and AutoCal modes the display is used to log data and provide a graphics function For details of these formats refer to the relevant mode description Additionally the display provides four status lines which indicate e Measurand Range and Units Transducer selected internal or external for pressure window DMM voltage current or temperature e Measurand Displays measured values and indicates any selected processing functions e g Tare Low Pass Filter Flow etc e Dialogue Line Displays the currently
182. tion 3 11 3 Set up Contd 3 27 This feature will allow any of the keyboard keys with the exception of the On Off key to be either enabled or disabled To change the status of any keys from unlocked to locked and vice versa proceed as follows Switch the instrument ON o Defaults o Battery o Status Press the SETUP key and select Cal Test and enter the PIN e Cal Test number Q Cal Q Test S ene Select Keyboard from the Cal Test menu A complete listing of the keys is now written to the display together with the current status of each key e g RANGE ON UNITS ON LIMITS ON PPROC ON ZERO ON EPROC ON PRINT ON Up SWITCH AUTOCAL LEAK DATA LOG STORE RECALL SETUP Down ON ON ON ON ON ON ON On PRESS VAC ON VOLTS ON mA ON TEMP ON VOLTS O P ON mA O P ON LIGHT ON Off Initially the cursor will be positioned over the Range key flashing over the first character of the status indication Use the Up F1 and Down F2 keys to position the cursor over the desired key and then use the On F3 or Off F4 keys respectively to enable or disable that particular key To exit the Key Locking facility press Exit Menu twice K136 Issue No 2 3 28 3 11 4 Switch Test Day ON SETUP LIGHT au AUTO LEAK TEST o TEST DATA STORE RE LOG CALL 3 11 5 Data Log DISPLAY ON SETUP LIGHT SATA AUTO LEAK TEST o TEST DATA STORE RE LOG
183. tion 3 33 Data Log Parameters Logging Trigger D Threshold 12 5000 bar Stop Single Shot File ID E1220 Continue The screen remains displayed until either Continue F1 or Quit F2 is pressed Following selection of Continue F1 the selected Event Data Log function is enabled e Replay The Replay option F2 is used to either recall any selected Data Log file to the display or to download the stored data to an external printer via the RS 232 port When Replay is selected a directory showing the first page of Data Logged files is displayed To replay a Data Log file select the desired file by means of the Page Up F1 Page Down F2 T F3 or L F4 cursor keys and press the ENT key on the numeric key pad Four display modes are then provided these being termed Display F1 Graph F2 Printer F3 and Upload F4 o Display When the Display option F1 is selected the data contained in the first location of the file is recalled to the display Data in each sequential location can then be recalled by operation of the Next key to go forward or the Previous key to go back The end of file is indicated by the message End To exit Display mode press the Exit Menu key K136 Issue No 2 3 34 DPI 605 User Manual 3 11 5 Data Log Contd o Graph SETUP The Graph option is used to provide a graphical indication of D Log file Three options are provided a selected Data Log file p p PvT
184. to produce a pressure output For a specific type of test the connection to the device will depend upon the device under test For all types of device the calibration set up between the DPI 605 and the device is as follows o Ensure that the vent valve on the instrument is open o Make the pressure connection between the instrument and the device under test o Make the electrical connections between the instrument and the device under test Use only the recommended 4mm plug connections to connect to the instrument o Switch the instrument to ON by means of the ON OFF key o Set up Alarm and Safety Limits required for the protection of the device under test o Program either Programmable Output Prog output or the Analogue Output Ana output of the instrumentto give the required output and enable the output refer to Section 5 o If required connect the DMM inputs to the device under test o Carry out the test K136 Issue No 2 E go 5 2 DPI 605 User Manual Table 5 1 details some of the types of test that can be carried out with the DPI 605 The figure number quoted in the table refers to a drawing which shows the corresponding connections to the instrument Connection Diagram Device Under Test DUT Calibrator Pressure to Voltage Pressure to Voltage External Pressure to Current Voltage to Pressure Current to Pressure current sourcing Pressure Switch Test Display Test current sinking Di
185. trument as shown in Fig 4 2 See also Fig 2 9 Section 2 p PRESSURE Ext Press T Supply Gear P lanaa Indicator Le Ses Figure 4 2 Pressure Switch Test Connections o Switch the instrument to ON by means of the ON OFF key o Close the Vent Valve 2 K136 Issue No 2 4 30 o Press the Switch Test key DPI 605 User Manual The instrument responds with a flashing Switch Test indication and by displaying the current pressure and the status ofthe pressure switch contacts e g INT FS 20 000 bar UI Switch Test Start Contacts Closed Contacts Opened Contacts Closed DE CE Ca u nu ao o Press the Start F1 key and use the Hand pump 3 to generate an output pressure Continue pumping u ntil the switch contacts change state For indicator version of the instrument vary the applied pressure externally INT FS 20 000 bar 5 17714 bar gauge Switch Test Reset Contacts Closed Contacts Opened 5 00198 se Contacts Open e G ma Ce J o Openthe Vent Valve 2 As the system pressure drops the calibrator records the pressure at which the pressure switch contacts change state e g 4 91132 Switch Test bar gauge Reset Contacts Closed at 4 9316 Contacts Opened at 5 00198 Contacts Closed bar gauge bar
186. u structure when the commands are issued regardless of the instrument s software version with version 2 00 or above The same is nottrue for the key press simulation approach therefore it is recommended that where possible use of the key press simulation command should be avoided Use of the SCPI commands may seem rather complex particularly to those that are not familiar with the operation of the instrument In this document the SCPI commands are explained but explanation of the instrument functions which they control is to be found elsewhere It is therefore strongly recommended that those wishing to use the instrument via the RS 232 port should first become competent at using the instrument via the keyboard refer to Sections 3 and 4 For those new to the SCPI standard the book A Beginners Guide To SCPI by Barry Eppler Published by Addison Wesley Publishing Company Inc for Hewlett Packard ISBN 0 201 56350 9 is a good introduction to the subject K136 Issue No 2 fee DA DPI 605 User Manual 2 COMMAND SYNTAX The individual commands take the form of one word in upper or lower case almost always preceded by a colon for a few special commands the preceding character isa Some commands may be ended with a question mark this is the query form ofthe command and instructs the instrument to return a value The returned value is always preceded by the return of the command string which caused it For example READ PRE
187. ucer Calibration Using Ext Range K136 Issue No 2 E Eco 5 8 DPI 605 User Manual SOURCE VOLTAGE 24 V MAX DEVICE UNDER EXT PRESSURE TEST INPUT PRESSURE OUTPUT Figure 5 12 Pressure to Current transmitter Calibration Indicator EXTERNAL PRESSURE SOURCE O UNIT UNDER B Brut TEST V CG C O00 SU kt OO foo 2022 8 oo dd CONTROLLED PRESSURE 20 BAR MAX Figure 5 13 Voltage to Pressure Transducer Calibration Indicator Test Equipment Depot 800 517 8431 99 Washington Street Melrose MA 02176 e 0780 TestEqui tDepot euer EE TesikaipmentDepokeam 5 Applications 5 9 EXTERNAL PRESSURE SOURCE O B Bruck J ES C O00 000 CC COOC EES COOC II CONTROLLED PRESSURE Ge Figure 5 14 Current to Pressure Current Sourcing PRESSURE SOURCE REGULATOR Figure 5 15 Pressure Switch Test K136 Issue No 2 fo 5 10 DPI 605 User Manual EXTERNAL POWER SOURCE Dux f 200 LE 10 oso 288 CIS 550 Ser OH seses PRESSURE __1 5 SOURCE DISPLAY Figure 5 16 Current to Pressure Current Sinking 200 pga DISPLAY u C BEE SE OC oo GE E se E e PRESSURE SOURCE
188. unction key to select Defaults option o Press the F3 Function key to select clock The following display prompt will be shown e g Set time and date 14 58 20 08 02 93 Time Date o Selectthe Time option F1 and atthe prompt enter the relevant time hours 9 Enter new Time Hours Mins D K136 Issue No 2 4 Operation e e Display Contrast 4 7 Enter the new time in hours and minutes format via the numeric key pad using the decimal point as a delimiter Press ENT to accept the entered value Select the Date option Enter the new date in Day Month and Year format via the numeric key pad using the decimal point as a delimiter Press ENT to accept the entered date When the instrument is first supplied the display contrast is factory set to 50 To change the setting proceed as follows SET UP 9 DDR e000 00086 gt Defaults Battery S Status Cal Test Units Comms Clock More Printer Contrast Auto Off o More Up Down Switch the instrument ON Press the SET UP key and select the Defaults option F1 Select the Contrast option from the Defaults menu Note the Contrast option is one level down on the Defaults menu and is obtained by pressing the More F4 key on the first level Use the Up F1 or Down F2 key to change the contrast level Up causes the display to go darker and Down to go lighter Press the Exit Menu key three times to exit SET UP
189. used with power adaptor where a protracted time scale is involved Example 5 After Continue F1 has been pressed log at 1 minute intervals after a negative going logic signal 30 V max to OV is first applied between sockets A ve and B ve Stop after 50 Samples have been taken or following Stop command F4 from key board Figure 4 4 Typical Periodic Mode Summary Screens Contd K136 Issue No 2 4 Operation 4 39 Event Mode R d o Replay The Event trigger mode is used where Data Log operations en are to be triggered by external events Three basic event Jo modes are provided Now FT Later F2 and Condition mi Continue F3 A manual trigger facility is extended to the F1 function o Quit key by the Now option and a Data Log operation is recorded un every time the Log key F1 is pressed The function is exited by pressing the Stop F4 key Stop Time Samples A Single Shot timed operation is provided by the Later option F2 and a Data Log operation is recorded at the programmed time The Condition option F3 allows the external event trigger to be selected from either a Switch Logic or Threshold condition Switch F1 and Logic F2 provide repetitive trigger actions to the Data Logger and Threshold F3 a One Shot trigger i e the first time that a pre programmed threshold is exceeded in either a positive or a negative direction Section 3 11 5 Page 3 29 details the
190. ver under exceptional circumstances an example of which is rapid unexpected loss of power during data Logging but not use of the ON OFF key may cause corruption of the Results file being created at the time The nature of the corruption varies and in rare circumstances it may be necessary to reset the instrument s memory This in no way affects calibration or other parameters CAUTION THE FOLLOWING PROCEDURE WILL ERASE ALL DATA STORED IN THE INSTRUMENT S MEMORY To reset the instrument s memory proceed as follows o Press the SET UP key o Select Cal Test F4 from the Set up Menu o Enter PIN number 13760 and press the DATA LOG key A prompt will now be displayed as follows e g All logged data will be lost Yes NOTE If the Yes F1 function key is pressed all data stored in the instrument s memory will be deleted K136 Issue No 2 4 60 e DPI 605 User Manual To reset the memory press the Yes F1 key otherwise press Exit Menu 4 19 De contamination Procedures The DPI 605 instrument is designed to operate by gas compression Filters are provided in all the inlets and outlets to prevent the ingress of particulate matter Every care should be taken to prevent the ingress of fluids particularly when using the instrument for vacuum applications In applications where there is a high risk of fluid ingestion it is advisable to fit an in line liquid separator trap between the external system and t
191. very oint measured into consideration whereas TSL draws the straight line between the lowest and the highest points ABS draws a straight line between a defined lower and higher point If ABS is selected the instrument will immediately prompt for a zero point for the pressure reading e g Zero input point Enter the required zero point and press ENT The next prompt requests the zero point for a the corresponding electrical output e g Zero output point Enter the electrical level corresponding to the zero output point and press ENT The will automatically be in the selected units Repeat the necessary responses to the corresponding FSD level point prompts e g FSD input point FSD Output point Following the entry of zero and full scale data for ABS or the selection of either BSL or TSL the results sub menu is written to the display as follows e g TSL Result 1 1 FS Details Results Quit K136 Issue No 2 3 Familiarisation 3 41 For the selected straight line graph Details provides a display showing the offset vertical axis intercept value and the gradient of the line e g Ofst 0 063u Grad 1 26 u bar Details Results Quit ui denotes units where an external input is entered under the dial gauge option Where electrical units are displayed u would be replaced by e g MA The Results option provides a display showing the maximum deviation from the straight line in terms of
192. ws Elechical Output o Switch the instrument to ON by means of the ON OFF key The electrical outputs from the instrument will default to OFF o Ana Output o Configure the output by pressing either the Volts or mA e Prog Output keys a Set me o Select Prog Output F3 K136 Issue No 2 4 Operation 4 27 4 12 o Press the Set key F1 and enter the required output level either by means ofthe Up Down function keys F3 and F4 or by direct numerical value entry from the keyboard followed by ENT Connect the external load to the appropriate sockets as shown in Fig 2 10 Use the B and C sockets for voltage and current sourcing applications and the C and D sockets for current sinking applications see Fig 2 11 Ana Output Prog Output Set the output to ON by means of the On F3 KEY When the outputis switched ON the output voltage level is displayed in the lower of the two electrical windows Note thatthe digital voltmeter ammeter can be used to monitor the output level Todisable the programmable output press the Off F4 key oralternatively select another type of output i e if VOLTS selected select mA The latter method maintains the instrument in the output programming mode It should be noted that if the instrument is subsequently switched off whilst the analogue output is enabled when the instrument is next switched on the last analogue value set up will be
193. xternal Selection of External provides a listing of the external transducers available e g External Transducer SN AY136720 SN Undefined SN KP10031 SN Undefined SN 17667 SN Undefined SN Undefined SN Undefined SN Undefined SN Undefined Previous Delete Select Move the cursor to the required transducer by the means ofthe Previous F1 and Next F2 keys and press select If the required transducer is not listed in the directory enter its parameters as detailed in Section 6 3 4 The External Pressure Transducer Cal menu will now be displayed e g External Pressure Transducer Cal D Linearity TC 2 Point FS Type SN K136 Issue No 2 EE 6 8 DPI 605 User Manual 6 3 1 Two Point Calibration To carry out a two point calibration of an external transducer proceed as follows NOTE This calibration need not be performed if a linearity Cal routine has been carried out see Section 6 3 2 Select 2 Point F3 from the External Pressure Transducer Cal menu Connect the external transducer to an external pressure source and pressure measurement standard deadweight tester Apply lowest pressure to the external transducer and in response to the prompt Enter applied Pressure 1 D Enter the applied pressure measured on pressure standard on the numeric key pad followed by ENT Press the Accept F1 key to accept the entered pressure Apply the highest pressure F S to the
194. y counting down to zero At the end of the Test period the display will indicate Pressure Drop and Leak Rate in the currently selected units K136 Issue No 2 4 26 DPI 605 User Manual o Ifrequired press the STORE key to store the current information o Press the Reset key F4 to clear the display in readiness for another leak test NOTE If whilst setting up the instrument the display times out indi cated by the disappearance of the legends over the function keys press the Leak Test key again to re activate the func tion keys 4 10 Generating an Electrical Output The electrical outputs of the DPI 605 are taken from the Device Under Test DUT Connector Panel There are two basic options available for the electrical outputs e Programmable Output Direct output of a user defined output voltage or current e Analogue Output Output of a voltage or current proportional to a selected measurand Full Scale F S and zero output levels must be defined The instrument connections for these facilities are shown in Fig 2 10 Section 2 1 9 The maximum output voltage that can be supplied is 24 V d c with a50 mA current drive capability The maximum output current that can be sourced from the instrument is 55 mA from a 19V source 30 V when the instrument is connected to an external power supply 4 11 Generation of Output Voltages or Currents Prog Output e To generate an output voltage or current proceed as follo
195. ying a resistance of 174 ohms and 82 ohms to the thermometer input marked PT100 on the system connector panel The exact value of these resistors is entered via the key pad Calibration adjustment of the voltage output takes the form of measuring two voltages provided between connectors B and C on the device under test connector panel These two voltages are provided automatically by the instrument when the voltage output calibration function is selected The values are then entered via the key pad Calibration adjustment of the current output takes the form of measuring two currents provided between connectors B and C on the device under test connector panel These two currents are provided automatically by the instrument when the current output calibration function is selected The values are then entered via the key pad Test Equipment Depot 800 517 8431 99 Washington Street Melrose MA 02176 FAX 781 665 0780 TestEquipmentDepot com K136 Issue No 2 6 Calibration 6 7 6 3 Calibration of an External Pressure Transducer To calibrate an external pressure transducer proceed as follows o Switch the instrument to ON o Defaults a Connect the external transducer e Cal Test la ca O Press SET UP key and select Cal Test and enter the PIN A Test number A New Pin A Keyboard o Select Cal from the Cal Test Menu A Pressure A Electrical e a Ratio o Select Pressure from the Pressure Cal adjustment menu and select E

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