Precision Decade model 1427 OPERATION MANUAL
Contents
1. 1 00000 0 01 10 00000 0 011 100 000 0 015 1000 0 0 060 2000 0 0 1 5000 0 0 25 10000 0 05 20000 0 10 50000 25 100000 5 0 200000 20 500000 50 1000000 100 1200000 120 Precision Decade MEG Page 29 Precision Decade model 1427 T Remote control The standard version of the 1427 is equipped with a RS232 interface The IEEE488 version is described in chapter 7 2 Remote control IEEE488 optionally A large part of the commands are the same for both versions 7 1 Remote control RS232 e Transmission baud rate may be selected from 300 to 19200 Bd e Number of data bits is 8 e Number of stop bits is 1 e No parity You ll find further information about the transmission rate at chapter 5 2 6 For data flow control neither hardware handshake RTS CTS nor program handshake XON XOFF is used The RS232 line is metallically separated to other electronic circuits RS232 connection Figure 5 9 pin connector D SUB FEMALE view to the 1427 s rear panel Pin Label UO Description 2 TXD output Transmitter 3 RXD input Receiver 5 GND Ground Cable between decade and computer configuration 1 1 Computer D Sub 1 D Sub 2 1427 Receiver 2 2 Transmitter Transmitter 3 3 Receiver Ground 5 5 Ground Page 30 7 2 Remote control IEEE488 optionally The following list of commands is valid for decades2. OPERATION MANUAL Precision Decade model 1427 2013 burster Manufacturer pr zisionsmesstechnik gmbh amp co kg burster praezisionsmesstechnik gmbh amp co kg All rights reserved Talstrasse 1 5 P O Box 1432 76593 Gernsbach 76587 Gernsbach Germany Germany Valid from 29 10 2013 Tel 49 07224 6450 Fax 49 07224 64588 E Mail info burster de www burster de 1392 BA1427EN 5170 101523 sts Precision Decade model 1427 Note Exclusion of warranty liability for operating manuals All information in the present documentation was prepared and compiled with great care and reproduced subject to effective control measures No warranty is provided for freedom from errors We reserve the right to make technical changes The present information as well as the corresponding technical data can change without notice Reproduction of any part of this documentation or its processing or revision using electronic systems is prohibited without the manufacturer s prior written approval Components devices and measured value sensors made by burster praezisionsmesstechnik hereinafter referred to as product are the results of targeted development and meticulous research As of the date of delivery burster provides a warranty for the proper condition and functioning of these products covering material and production defects for the period specified in the warranty document accompanying the product However burster excludes guaran
3. is also copied into the selected directory for an alternative delete of the directory from the system Page 37 MET Precision Decade model 1427 8 2 Program description When launching the program R decade the following control panel is displayed on your screen k3 Resistance decade EIER Output Function EE jo 000 is Pt 68 RO Pt Ni Pt 90 bo F Ni Pt US Exit Figure 7 R Decade gt First select the appropriate interface RS232 or IEEE488 To select the interface use the operating element Communication Standard is RS232 To control the decade with the RS232 Interface gt Get the serial port number to which the instrument is connected and the baud rate gt Click the Open button After pushing the Oper button the program checks the connection to the instrument If an instrument is found you can control it To control the decade with the IEEE488 interface gt Set the IEEE488 address gt Click the Open button After pushing the Open button the program checks the connection to the instrument If an instrument is found you can control it Set an output value gt Insert the desired value at the window Output or use the A and Y keys To exit the program gt Click the Exit button Page 38 model 1427 9 Specifications Precision Decade LAE Only values functions ranges with signed accuracy in relative or absolute expression or where
4. Figure 1 Assembly frame for an easy assembly of 1427 Vxxx into a 19 rack 2 3 Construction 2 3 1 Electric function The resistance elements are switched to the output terminals with reed relays in a binary code system The resistors are made of foil or metal with a low temperature coefficient The relays used are types with a low thermoelectric voltage The metal housing is connected to the ground terminal Therefore the board with resistors and relays creates independent mechanical block The CPU with a one chip micro controller generates all necessary internal control signals Calibration data and set up parameters are saved in aEEPROM memory 2 3 2 Mechanical construction The decade housing is a standardized desktop housing made of aluminum Keyboard and display are located at the front panel The output terminals the power cord socket with the fuse the mains switch the RS232 or the IEEE488 terminal and the ground terminal are located at the rear panel Page 9 MEE Precision Decade model 1427 3 Terminals and Controls 3 1 Terminals RS232 Schnittstelle eee 466 IEEE488 Schnittstelle Figure 2 Rear panel of 1427 Resistance output is available either on R4W or on R2W output terminals 2 and 4 wire connection and if the decade is used as Pt Ni temperature sensor simulator 2 3 and 4 wire connection is available at the upper four Terminals R4W The resistance range of these Terminals lies betw
5. Handelsregister Trade Register Gernsbach Registergericht Register Court Mannheim HRB 530130 UST Identnr VAT No DE 144 005 098 Steuernr Tax Ident No 39454 10503 merzbank AG Rastatt Kto Acc 06 307 073 00 BLZ Bank code 662 800 53 Volksbank Baden Baden Rastatt eG Kto Acc 302 082 00 BLZ Bank code 662 900 00 Precision Decade model 1427 Page 4 Table of Contents o nn A 7 1 1 o AA OR OP E O 5 E REIS REIS EROS EST REG RES 7 1 2 CUSTOMER SEMI id 7 ESA 8 2 1 Contents Of delivery see ee ee ee ee EE 8 2 1 1 RS232 version ee ee 8 2 12 EEE488 VOI iS ER 8 2 2 Module 19 extra ordered Option ee 8 2 3 COnStUCHON ii ac o 9 2 3 1 Electric IOC ON seele 9 2 3 2 Mechanical Kee E tee 9 Terminals and Re a E 10 3 1 Tin Sp 10 3 2 Keyboard POPE o ee ee ee ggg 11 3 3 Disp costa 12 Preparation for USe casaca 13 4 1 SWILENING ON EE 13 4 2 Warm Up PEO sa 13 II 1 5 1 AP ee nT sete EA ero ne EOE Nee nent none eee me te nee ner 14 5 1 Standard MOUE AAA e APAP P a 14 5 1 1 Use of cursor Keys 2 14 9 12 Hun lee E 15 5 2 SEIUN MEN PS i EL PO A 15 5 2 1 FUNCION ei mos tocat li alat tnt reer are nner almoina errr nh 16 5 2 2 Ro the resistance at 0 C Pt Ni ad 17 5 23 4W lt 2W the highest resistance value on RAW Iemmals 18 5 2 4 temperature unit T unn 18 5 2 5 Click Volume Volume 19 5 2 6 Baud rate RS232 optionally IEEE488 address 19 GE ER Ee irae E 20 5 2 8 Calibration mode password setting Cal code 21
6. Precision Decade model 1427 5 2 9 Serial number Gertaln EE 22 5 3 E leie Brel 23 5 3 1 Recommended connection of standard ohm meter eee eee 25 O A o erecta ES ene Teer 26 6 Performance Verification eekleg 27 6 1 Required equippment EE 27 6 2 po E 27 6 3 BE ele ee EE EEEE EE EREEREER 27 6 4 Verifying parameters copies 27 ds Remote CONTO nenene ie dec ede eee hed 30 7 1 Remote el Wee RE 30 7 2 Remote control IEEE488 optional 31 7 3 ComMand eege 32 L a NEE ue E eli lia o 32 7 4 EE 33 7 4 1 Value setting reading ae nee re nee 33 7 4 2 Decade function setting eeeemenenenenenenenenenenenenennrannnnrnnarn 34 723 VD device identification NEE 34 LAA Rosetting reading EE 35 7 4 5 Temperature unit setting T unit ame 35 re SUS ere e ala EE 36 7 4 7 Value for switching over terminals 2W 4W 4W lt 2W cccceeeetteees 36 8 ve EC E 37 8 1 Installing the program ec sota ente te ese ae ie Sadistic te teca tegas 37 8 2 Program description sI AA AA A 38 9 SBEEINCATIONS ee 39 9 1 BOM ee ee AA 41 Page 6 1 Introduction 1 1 Normal Use The resistance decade 1427 is a precise programmable resistance decade for a range from 1 000 00 Q to 1 200 000 Q It is designed for checking parameters of resistance meters regulators and process meters which use external resistance sensors for the measurement of non electric magnitudes The preset resistance value
7. Santo R27 R2W4W 1780 Q 40 mQ ROT em R35 R2W4W 602 kQ Page 24 5 3 1 Recommended connection of standard ohm meter Terminals RAW for calibration points ROO to R26 digitales Ohmmeter Lu Terminals R2W for calibration points R27 to R35 Page 25 Precision Decade model 1427 5 3 2 gt Page 26 Calibrating Set the first calibration point resistance element Use the keys A and Y to set the element Measure the resistance of the selected element Use a ohm meter with appropriate accuracy in 4 and 2 wire wire connection Switch the keypad to numerical mode To do this press the ENT key Insert the measured resistance value in Ohms Q You ll find the original value in the upper row and the new value in the lower row Rob 62 DD A 62 4248 Confirm the new calibration data by pressing the ENT key Repeat the procedure described above for all resistance elements 6 Performance verification test The verification procedure is based on the measuring of the resistance at the decade output terminals with a standard multimeter in recommended points 6 1 Required equippment You need an ohmmeter with a nominal accuracy of 0 001 in range 1 Q to 1 2 MQ e g Wavetek 1281 FLUKE 8508 or similar 6 2 Decade setting gt Switch the decade to resistance mode gt Connect the standard multimeter to the output terminals of the decade gt Use four wire connection 6 3
8. limits are specified are guaranteed Resistance range 1 000 00 Q 1 200 000 Q SHORT OPEN terminals version 1427 Vx1xx only Pt sensor temperature simulation Ni sensor temperature simulation 200 000 C to 850 000 C 328 F to 1562 F 60 000 C to 300 000 C 76 F to 572 F Type of temperature sensors Pt10 to Pt20000 Ni10 to Ni20000 Resolution 0 000 01 Q for 1 000000 to 10 000 00 Q 0 000 1 Q for 10 0001 Q to 100 000 0 Q 0 001 Q for 100 001 Q to 400 000 Q 0 01 Q for 400 01 Q to 1200 00 Q 0 10 for 1200 1 Q to 30000 0 Q 10 for 30000 Q to 1200000 0 0 001 C Tor Pt10 toPt300 and Ni10 to Ni300 0 01 C for Pt301 to Pt10000 and Ni301 to Ni10000 Pt temperature standards IEC 751 1 3850 for IPTS68 DIN EN 60751 1 3851 for ITS90 US US JIS 1 3916 Ni temperature standards DIN 43760 6180 Temperature coefficient lt 1 ppm C 1 Q 2000 Q on terminals R4W lt 1 ppm C 100 Q 1200 kQ on terminals R2W lt 5 ppm C 2 RO 10 RO on terminals RAW Maximal dissipation power 0 3 VV Maximal voltage 50 V DC 50 Vef AC on terminals RAW 50 V DC 50 Vef AC on terminals R2W Connection of output terminals 2 4 wire Connection of temperature sensors 2 3 or 4 wire Reaction time Terminals output 6 ms instrument terminals diameter 4 mm gold plated Interface RS232 as standard optionally IEEE488 Power line 100 2
9. the number on the active position The buttons lt and gt move the active position of the cursor to left or right Switching between cursor and numerical mode gt Push the ENT key Activating the SETUP mode gt Push the MENU key 5 1 1 Use of cursor keys The Cursor keys A and Y enables to increase or decrease the number on the active position The active position is signed by the symbol _ at the desired number With cursor keys lt and gt you ll change the active position of the cursor gt Push the ENT Rey to switch the keys 2 4 6 and 8 between cursor and numerical mode The arrow in the lower right corner shows that the keys are in cursor mode Page 14 5 1 2 Numerical keyboard With the numerical keys temperature or resistance values may be entered directly A recently entered value is displayed in brackets under the active value 166 888 C L 162 8 To confirm the new value gt Push the ENT key Pushing the ENT key switches the keys 2 4 6 and 8 to cursor mode To delete the last entered number gt Push the BSP key To exit setting mode gt Press the ESC key 5 2 Setup menu This mode enables to set or display some auxiliary parameters Function Pt16b Pt 16 T To enter the setup mode gt Push the MENU key at standard mode To call up parameters gt Call up the desired parameter with cursor key A or Y You ll find a description of the Parameters an their se
10. 0 400 Q 0 003 3mQ 400 Q 2000 Q 0 005 2000 Q 10000 Q 0 015 Maximal thermoelectric voltage on terminals RAW in resistance range 1 Q to 2 KQ is 1 uV and in range 2 RO to 10 RO is 5 uV Table 5 Resistance accuracy terminals R2W 0 005 10 mQ The maximum thermoelectric voltage on terminals R2W in resistance range 1 Q to 2 RO is 5 uV and in range 2 kQ to 1 2 MQ is 15 uV Table 6 Pt temperature sensor simulation accuracy Range Pt100 R4W Pt200 R4W Pt500 R4W Pt1000 R4W Pt10000 R2W 200 to 200 C 10 02 C 0 02 C 0 02 C 0 04 C 0 04 C 200 to 500 C 0 03 C 0 04 C 0 06 C 0 06 C 50010850 0 Jane ooo Jose Table 7 Ni temperature sensor simulation accuracy Temperature range Ni100 R4W Ni1000 R4W Ni10000 R2W 60 to 300 C 0 02 C 0 04 C 0 04 C Page 41 Precision Decade model 1427 Short and Open simulation version 1427 VX1X only When the SHORT function is selected the output resistance is lower than 100 mQ typically 50 mQ The maximum allowed current is 500 mA When OPEN function is selected the output resistance is higher than 1 GQ The maximum allowed voltage is 50 V eff on terminals R4W and 50V DC 50 V eff AC on terminals R2W Note Resistance values in range 1 Q to 1 2 MO are absolutely calibrated The resistance value is not defined against SHORT position The functions SHORT and OPEN positions are intended only for a functional checking
11. 27 Precision Decade IMEG 7 4 4 Ro setting reading R 2 lt DNPD gt This Command sets the resistance value to 0 C The setting of Ro is valid for all types of simulated temperature sensors lt DNPD gt Represents the resistance value Ro in Q The limits are shown in chapter 9 Specifications The 1427 confirms the execution with the string Ok lt cr gt lt lf gt In case of a query the 1427 returns the set value in Q Example R100 lt cr gt sets the value Ro to 100 Q Pt100 Ni100 After the query R lt cr gt the decade returns the string 100 lt cr gt lt lf gt 7 4 5 Temperature unit setting T unit U lt CPD gt 0 1 This Command sets the used temperature unit Code Function 0 sets degrees of Celsius C 1 sets degrees of Fahrenheit F The 1427 confirms execution with the string Ok lt cr gt lt lf gt Example UO lt cr gt sets C as temperature unit Page 35 Precision Decade model 1427 7 4 6 Status reading V 1427 returns the device status in the form FxUx lt cr gt lt lf gt The values corresponding to the actual status of decade are located at the positions of the x signs refer to chapter 7 4 2 Decade function setting and chapter 7 4 5 Temperature unit setting T unit Example After the query V lt cr gt the decade returns the string F2U0 lt cr gt lt If gt which means the actu
12. 40 V AC 47 63 Hz Power consumption 10 VA max Page 39 Precision Decade model 1427 Safety class according EN61010 Uses external fuses T1 0A Uses internal fuses T 2 0 AH Reference temperature 18 C 28 C Working temperature 5 C 40 C Storing temperature 10 C 50 C Housing ALU aluminium Dimensions table version Width 250 mm Height 100 mm Depth 390 mm Dimensions 19 module Width 483 mm Height 133 mm Depth 390 mm Weight 4 5 kg Isolation resistance between gt 2 GQ at 500 V DC output terminals and housing Reaction time means time interval between setting up value from front panel or receiving command from remote control bus and settling set up value on output terminals Note Only data shown with tolerance or with band of limits are tested All other values only have informative character Note During over switching resistance circuit may be opened for a period of about 1 ms Page 40 9 1 Accuracy Specified accuracy is valid after a 10 minute warm up period in temperature of 23 5 C Uncertainties include long term stability temperature coefficient linearity load and line regulation and traceability of factory to national calibration standards Accuracies are assigned in of the set value The Specified accuracy is valid for one year Table 4 Resistance accuracy terminals R4W 1
13. Note The new value is valid even if the instrument is switched off and on again Page 17 Precision Decade model 1427 5 2 3 4W lt 2W the highest resistance value on R4W terminals Use this function to define the resistance value for the switch over of the active output terminals from RAW to R2W and back automatically Resistance values higher than 10 000 Q are only available on terminals R2W Lower values than 10 000 Q are available either on R2W terminals or on R4W terminals But the R4W terminals are more accurate The allowed range of R4W lies between 1 Q and 10 000 Q To set a value gt Press the MENU key at standard mode gt Select the Parameter 4W lt 2W with the cursor keys A and Y gt Switch the keypad to numerical mode To do this press the ENT key gt Use the numerical keys to insert the new value gt Confirm the new value To do that press the ENT key At this moment the setup of the new switch over point value is finished Note The new value is valid even if the instrument is switched off and on again 5 2 4 temperature unit T unit gt Press the MENU key at standard mode gt Select the Parameter T unit with the cursor keys A and Y gt Select the desired unit with the keys and gt Available are the units Celsius C and Fahrenheit F Both units are shown at the lower row gt Confirm new value To do that press the ENT k
14. Testprocedure e Checking output resistance on terminals R4W e Checking output resistance on terminals R2W 6 4 Verifying parameters To perform a parameter verification test gt Switch on both instruments gt Wait at least for one hour During this time both instruments have to stabilize at a laboratory ambient with a temperature of 23 2 C After the waiting period gt Connect the resistance decade terminals R4W to the standard ohm meter multimeter gt Set 4W lt 2W value to 10 kQ This value is set at the SETUP menu gt Check the resistance value at the checkpoints according to table Maximum deviations R4W Page 27 Precision Decade model 1427 Table 2 Maximum deviations R4W Nominal value D _ Max deviation mQ 1 00000 3 03 2 00000 3 06 5 00000 3 15 10 00000 3 3 20 0000 3 6 50 000 4 5 100 000 6 0 200 00 9 0 500 00 25 1000 0 50 2000 0 100 5000 0 750 10000 0 1500 gt Connect the standard ohm meter to the R2W terminals of the resistance decade Use four wire connection for a range up to 10 kQ Above this point you can use both two wire and four wire connection gt At SETUP menu set the parameter 4W lt 2W to 0 Q gt Check resistance value at checkpoints according to table Maximum deviations R2W Page 28 model 1427 Table 3 Maximum deviations R2W Nominal value Q Max deviation Q
15. al setting is Pt 90 and C 7 4 7 Value for switching over terminals 2W 4W 4W lt 2W W lt DNPD gt This command sets the value where the resistance output is switched from R4W to R2W and back lt DNPD gt Represents the resistance value in Q The limits are shown in chapter 9 Specifications The 1427 confirms the execution with the string Ok lt cr gt lt lf gt In case of a query the 1427 returns the set value in Q Example W2000 lt cr gt sets the value to 2000 Q After the query W lt cr gt the decade returns the string 2000 lt cr gt lt If gt Page 36 8 Demo program To provide an easy operation of the instrument from the computer and to check the RS232 line IEEE488 bus of the instrument a simple operating program is delivered with the decade The installation disk contains a program for WIN95 98 ME NT 2000 XP WIN7 WIN8 only that allows your computer to communicate with the instrument through a standard serial line IEEE488 For example you may set a value or function on the decade For a IEEE488 connection this Demo program requires a properly configured National Instruments IEEE488 card 8 1 Installing the program gt Launch SETUP EXE The installation program asks for the destination directory pre defined is R Decade gt Insert another directory or confirm R Decade The installation program executes the installation The file UNINST EXE
16. ber of decimal places For example the value 120 C is returned as 120 000 lt cr gt lt If gt Positive numbers are sent without polarity sign Example The command A123 564 lt cr gt sets the temperature 123 564 C if the decade is in temperature simulation mode If the decade is in resistance mode 123 564 Q will be set If only the query A lt cr gt is sent the decade returns the response in the format 123 564 lt cr gt lt if gt Page 33 Precision Decade model 1427 7 4 2 Decade function setting F lt CPD gt 0 1 2 3 4 5 S O The following functions are available Code Function 0 resistance mode 1 Pt 68 temperature sensor simulation Pt 90 temperature sensor simulation Pt US temperature sensor simulation Ni temperature sensor simulation Custom temperature sensor simulation Short simulation extra ordered option Ooooh Open simulation extra ordered option The 1427 confirms the execution with the string Ok lt cr gt lt lf gt Example F1 lt cr gt sets the simulation of a Pt100 sensor temperature scale IPTS68 7 4 3 UD device identification IDN The response contains the name of the manufacturer the model type number the serial number and the firmware version Example If query IDN lt cr gt is sent the decade returns the response BURSTER 1427 462351 2 4 lt cr gt lt lf gt Page 34 model 14
17. een 1 Q and a maximum R 10 RO The upper limit of R depends on the setting of the parameter 4W lt 2W refer to chapter 5 2 3 The lower line of terminals with the label R2W can only be used for 2 wire connection The total resistance range at these terminals is from R 1 Q to 1 2 MQ The value of the lower limit R depends on the setting of the parameter 4W lt 2W refer to chapter 5 2 3 The decade switches automatically between R2W and R4W output terminals according to the resistance value Low resistance values are always available at the R4W terminals The over switching value from R4W to R2W terminals is set at the SETUP menu prameter 4 VV lt 2 VV refer to chapter 5 2 3 The range of this point setting covers values from 0 Q to 10 KQ It may be set with a resolution of 1 O The resistance of preset 4W lt 2W value is still available on the R4W terminals When 4W lt 2W value is set to 0 Q the R2W terminals are used as output only The recommended 4W lt 2W value is 2000 Q Active terminals are indicated by a lighting LED at the rear panel The left terminal with symbol GROUND is connected to the housing Page 10 3 2 Keyboard Figure 3 The Keyboard and the display are located at the front panel Numerical values may be entered from the numerical part of keyboard The keys 2 4 6 and 8 also have a meaning as display cursor keys The following keys are located at the keyboard except from the numer
18. ey At this moment the setup of the temperature unit is finished Note The new unit is valid even if the instrument is switched off and on again Page 18 model 1427 5 2 5 Click Volume Volume gt Press the MENU key at standard mode gt Select the Parameter Volume with the cursor keys A and Y gt Select the desired volume with the keys lt and gt Precision Decade LAE You may set the volume incremental There are 15 increments of volume 00 means no click when a key is pressed and 15 means a loud click The new set volume is valid at the parameter Volume It is not valid outside of this parameter until the volume is confirmed gt Confirm new value To do that press the ENT key At this moment the setup of the click volume is finished Note The new volume is valid even if the instrument is switched off and on again 5 2 6 Baud rate RS232 optionally IEEE488 address This parameter allows the setup of the RS232 interface s baud Bd transfer rate To set the transfer rate of a RS232 decade gt Press the MENU key at standard mode gt Select the Parameter Baud rate RS 232 with the cursor keys A and Y gt Select the desired transfer rate with the keys lt and gt These baud rates are available O O O 300 Bd 600 Bd 1 200 Bd 2 400 Bd 4 800 Bd 9 600 Bd 19 200 Bd The baud rates are displayed at the lower row gt Confirm
19. g put the instrument on a flat desk If the instrument was stored out of range of reference temperatures gt Let it stabilize for at least one hour 4 1 Switching on gt Switch on the mains The mains switch is located at the rear panel After the switching on internal tests are performed for approx 3 s During this time the model name of the instrument and the manufacturers name are shown at the display After finishing the tests the setting of the decade operation is performed Factory setting is the resistance mode value 100 Q 100 F 100 C 4 2 Warm up period After 10 min warm up period the decade meets its specified accuracy The decade can operate immediately after the switching on Note Perform recalibration only if the warm up period is finished Page 13 Precision Decade model 1427 5 Operation 5 1 Standard mode After switching on the decade operates in the standard mode The following information is shown at the display 166 Dn C Pt LDp IPT36S t The upper row shows the simulated temperature in C or the generated resistance in Q The lower row shows the type of the simulated temperature sensor Pt100 and the setup temperature scale IPTS68 or ITS90 according to the IEC751 standard or US according to the US JIS standard The arrow symbol in the right corner informs that the cursor mode of the keys 2 4 6 and 8 is initialized The buttons A and Y enable to step up or down
20. ical keys Key Meaning MENU Enters the SETUP CALIBRATION menus BSP Deletes the last entered number ESC Cancels last entered value or leaves the last set mode ENT Confirms set value or confirms the selected item in the MENU It also switches between the numerical mode black label and display cursor mode of the keys 2 4 6 and 8 Switching over is indicated with the symbol in lower right corner of the display Page 11 Precision Decade model 1427 3 3 Display 166 688 C Fiat IFTSES f Figure 4 The two row display of 1427 The two row alphanumerical display is located at the front panel of the decade It is used to display all information Main values e g simulated temperatures or output resistances are displayed in the upper row Auxiliary information is displayed in the lower row The following symbols may be displayed in lower right corner depending on the status of the decade keys 2 4 6 and 8 are switched to the cursor mode kW decade is in remote control via RS232 IEEE488 optionally Page 12 4 Preparation for use The voltage supply has to be in the range from 100 V to 240 V the frequency in range from 47 to 63 Hz The 1427 decade is a laboratory device Its accuracy is valid at a temperature of 23 C 5 C The Instrument is aimed for the use in horizontal or slope position The angle of slope is determined by its bottom foots gt After unpackin
21. is created by a appropriate combination of physical resistors The Decade is equipped with a build in function for the direct simulation of the most frequent temperature sensors Pt and Ni Relays with a low thermal voltage and stable foil resistors with low temperature coefficient are used as main parts of the decade Set values are displayed on the front panel display The 1427 is a sophisticated instrument with its own re calibration procedure This procedure allows the correction of any deviation in resistance without mechanical adjusting The Instrument is especially designed for automatic testing procedures A RS232 interface optional IEEE488 bus is used for linking the decade and a computer 1 2 Customer Service burster praezisionsmesstechnik gmbh amp co kg Talstra e 1 5 D 76593 Gernsbach Telefon 49 7224 645 0 Fax 49 7224 645 88 e mail info burster de Page 7 2 2 1 2 1 1 2 1 2 2 2 EH Precision Decade Description Contents of delivery RS232 version Resistance decade 1427 V1xx Power cord Fuse 1 0 A T RS232 Cable Demo program User s manual Test report 1EEE488 version Resistance decade 1427 V2xx Power cord Fuse 1 0 A T Demo program User s manual Test report Module 19 extra ordered option model 1427 The 1427 may be ordered as 19 module for an easy assembling into a 19 rack Module height is 3HE Order Code 2316 2001 Page 8
22. magnetische Vertraglichkeit 2004 Electromagnetic Compatibility EN 61000 3 2 Elektromagnetische Vertraglichkeit 2006 Grenzwerte fur Oberschwingungsstr me Electromagnetic Compatibility Limits for harmonic current emissions Elektromagnetische Vertr glichkeit Begrenzung von Spannungs nderungen Spannungsschwankungen und Flicker in ffentlichen Niederspannungs Versorgungsnetzen f r Ger te mit einem Bemessungsstrom Electromagnetic Compatibility Limitation of voltage changes voltage fluctuations and flicker in public low voltage supply systems for equipment with rated current EN 61326 1 Elektrische Mess Steuer Regel und Laborger te 2006 EMV Anforderungen Teil 1 Allgemeine Anforderungen industrielle Umgebung EMC Generic immunity EN 61000 3 3 2008 Gernsbach 13 02 2013 i V Christian Karius Ort place Datum date Quality Manager Dieses Dokument ist entsprechend EN ISO IEC 17050 1 2010 Abs 6 1g ohne Unterschrift g ltig According EN ISO IEC 17050 this document is valid without a signature ster pr zisionsmesstechnik gmbh A co kg Talstr 1 5 DE 76593 Gernsbach P O Box 1432 DE 76587 Gernsbach Tel 49 7224 6450 Fax 645 88 www burster com info burster com burster is ISO 9001 2008 certified Gesch ftsf hrer Managing Director Matthias Burster Handelsregister Trade Register Gernsbach Registergericht Register Court Mannheim HRA 530170 pl Gen Partn burster pr zisionsmesstechnik Verwaltungs GmbH
23. new value To do this press the ENT key After pressing the ENT key the new baud rate is written to the upper row At this moment the setup of the new transfer rate is finished Note The last set baud rate is valid even if the instrument is switched off and on again Page 19 Precision Decade model 1427 To set the address off an IEEE488 decade IEC addr If the decade is equipped with an optional IEEE488 Interface you may set the IEEE488 address of instruments instead of the Baud rate The address range is 0 to 30 5 2 7 Lightning Using this parameter you may enable or disable the display lightning The decade disables the display lightning after a set time if no key is pressed To set a time gt Press the MENU key at standard mode gt Select the parameter Lightning with the cursor keys A and Y gt Use the keys lt and gt to select the time to disable the display lightning These settings are available o OFF The lightning is disabled o 30s The lightning is disabled 30 seconds after the last hit of a key o 5 m The lightning is disabled 5 minutes after the last hit of a key o ON The lightning is enabled at all time The setting is displayed at the lower row gt Confirm new setting To do that press the ENT key After pressing the ENT key the new setting is written to the upper row At this moment the setup
24. of setting is 200 C to 850 C 328 F to 1562 F The parameter RO resistance at 0 C is variable in the range 10 Q to 20 000 Q Ni Simulation of Ni temperature sensors according to standard DIN43760 coefficient 6180 The Range of setting is 60 C to 300 C 76 F to 572 F The parameter RO resistance at 0 C is variable in the range 10 Q to 20 000 Q Page 16 User By user defined temperature function As default a NTC thermistor sensor with the temperature function R T 330 exp 4050 1 298 15 1 T 273 15 is preset The range of simulation is 30 C to 110 C Short Version 1427 Vx1x Simulates Short at the output terminals The function Short is an extra ordered option Open Version 1427 Vx1x Simulates Open on the output terminals The function Open is an extra ordered option 5 2 2 Ro the resistance at 0 C Pt Ni This function allows the setup of the parameter Ro for temperature sensors The seting is valid for both Pt and Ni sensors To set a Ro value gt Press the MENU key at standard mode gt Select the Parameter R with the cursor keys A and V gt Switch the keypad to numerical mode To do this press the ENT button gt Insert the new value of Ro The range between 10 Q and 20 000 Q is allowed gt Confirm new value To do this press the ENT button At this moment the setup of the new value is finished
25. of tested instrument Page 42
26. of the display lightning is finished Page 20 5 2 8 Calibration mode password setting Cal code To access the calibration mode you have to enter a five digit password If the password is set to 00000 this information is displayed in the setup menu Otherwise the decade displays Enter Password 6151515J5 Write down the active password If you forget the calibration code you have to send the decade to buster Note To change the passvvord gt Press the MENU key at standard mode gt Select the Parameter Cal code with the cursor keys A and Y gt Switch the keypad to numerical mode To do this press the ENT key If the old password is 00000 gt Use the numerical keys to insert the new password gt Confirm the new password with the ENT key The new password is not shown at the menu If another password is set gt Insert the old password gt Confirm the old password with the ENT key After the old password is entered correct the decade displays 00000 gt Use the numerical keys to insert the new password gt Confirm the new password with the ENT key The new password is not shown at the menu Note The new password is valid even if the instrument is switched off and on again Page 21 Precision Decade model 1427 5 2 9 Serial number Serial n Displays the serial number of the decade To display the serial number gt Pre
27. ss the MENU key at standard mode gt Select the Parameter Serial n with the cursor keys A and Y The display now shows the serial number Note This parameter cannot be changed Page 22 5 3 Calibration mode In this mode you may recalibrate the resistance elements of the decade To get access to the calibration mode gt Press twice the MENU key at standard mode At SETUP mode you have to press this key only at one time Before calibration you have to enter the correct password Without a correct password the access to the calibration mode is refused The default calibration code is 00000 Enter Password 7 6151515J5 To return to standard mode gt Press the ESC key The recalibration procedure consists of the measuring of 36 basic resistance values and of entering their current measured data During calibration you are able to adjust the values with the A and Y keys Note The nominal values can vary but there is no influence to the accuracy The nominal values of the calibration points and the requested recalibration accuracy are described in the table following Table 1 Calibration points and requested accuracy Standard terminals Requested Accuracy Roo end poo bes RO5 R4W 60 5 Q R06 R4W 120 Q ROT a ara Page 23 MSs Precision Decade model 1427 R11 R4W 3480 Q 100 mQ R12 R4W 6870 Q 250 mQ R20 R4W 1540 kO 200 Q R21 R4W 3020 KQ 400 Q o Run
28. tax description lt DNPD gt Decimal Numeric Program Data this format is used to express decimal number with or without exponent lt CPD gt Character Program Data Usually this format represents a group of alternative character parameters e g 0 1 2 3 A flag indicating a request for the value of the parameter specified by the command No other parameter than the question mark can be used A flag indicating a request for the parameter specified by the command This command permits a value to be set as well as requested lt cr gt carriage return ASCII code 13 This code executes the program line lt If gt line feed ASCII code 10 This code executes the program line Page 32 7 4 Command list 7 4 1 Value setting reading A lt DNPD gt This command sets a resistance resistance function or temperature value temperature sensor simulating mode lt DNPD gt Represents a resistance value in Ohm or a simulated temperature in C If the temperature mode is activated both negative and positive values are acceptable At resistance mode only positive values are acceptable The limit values are shown in chapter 9 Specifications In case of a command the decade confirms the correct setting with the string Ok lt cr gt lt If gt In case of a query the 1427 returns the set resistance temperature value in the same format as it is set for the display num
29. tee or warranty obligations as well as any liability beyond that for consequential damages caused by improper use of the product in particular the implied warranty of success in the market as well as the suitability of the product for a particular purpose Furthermore burster assumes no liability for direct indirect or incidental damages as well as consequential or other damages arising from the provision and use of the present documentation Page 2 The measurement solution Konformit tserkl rung nach EN ISO IEC 17050 1 2010 Declaration of conformity in accordance with EN ISO IEC 17050 1 2010 Name des Ausstellers burster pr zisionsmesstechnik gmbh amp co kg Issuer s name Anschrift des Ausstellers Talstr 1 5 Issuer s address 76593 Gernsbach Germany Gegenstand der Erkl rung Rechnersteuerbare Hochpr zisions Widerstands Dekade Object of the declaration Precision resistance decade Modellnummer n Typ 1427 Model number type Diese Erkl rung beinhaltet obengenannte Produkte mit allen Optionen This declaration covers all options of the above product s Das oben beschriebene Produkt ist konform mit den Anforderungen der folgenden Dokumente The object of the declaration described above is in conformity with the requirements of the following documents Dokument Nr Titel Ausgabe Ausgabedatum Documents No Title Edition Date of issue 2006 95 EC Niederspannungsrichtlinie 2006 Low voltage directive 2004 108 EC Elektro
30. ttings at chapter 5 2 1 to 5 2 9 To leave the setup mode gt Push the ESC key Page 15 Precision Decade model 1427 5 2 1 Function gt Push the MENU key at standard mode gt Call up the Function parameter with cursor key A or Y gt Set the decade to the desired mode To do this use the cursor keys d and gt The available modes are shown at the following The Menu Items are displayed at the lower row After selecting an item and pressing the button ENT the identifier of the new selected temperature resistance function is shown at the upper row The selected function is valid even if the instrument is switched off and on again except of Short and Open functions R Resistance mode The total range of resistance is 1 00 000 Q to 1 200 000 Q Pt 68 Simulation of Pt temperature sensors according to standard IEC751 temperature scale IPTS68 coefficient 1 3850 The range of setting is 200 C to 850 C 328 F to 1562 F The parameter RO resistance at O C is variable in the range 10 Q to 20 000 Q Pt 90 Simulation of Pt temperature sensors according to standard DIN EN 60751 temperature scale ITS90 coefficient 1 3851 The range of setting is 200 C to 850 C 328 F to 1562 F The parameter RO resistance at 0 C is variable in the range 10 Q to 20 000 O Pt US Simulation of Pt temperature sensors according to standard US JIS temperature scale ITS90 coefficient 1 3916 The range
31. with IEEE488 interface The decade performs the following functions based on IEEE488 bus commands SH1 AH1 T5 L3 RL1 DC1 The 1427 also recognizes the following general commands DCL Device Clear resets the 1427 to its delivery status SDC Selected Device Clear resets the 1427 to its delivery status GTL Go To Local disables the remote control LLO Local Lock Out disables the local control the 1427 can only be controlled by remote control Other commands are identical to the RS232 interface commands You ll find a detailed description at chapter 7 3 Commands and at chapter 7 4 Command list Figure 6 Plug arrangement IEEE488 Interface Page 31 Precision Decade model 1427 7 3 Commands The communication between decade and computer consists of a flow of the two command types command response and query response A command is always a letter followed by a parameter and ended by control sign lt cr gt or lt If gt The response is always ended with the control signs lt cr gt lt lf gt If an unknown command is received the 1427 returns the string lt cr gt lt If gt A correct executed command is confirmed by the string Ok lt cr gt lt If gt If a correct query is received the 1427 returns the response in the format described above All commands have to contain the sign lt cr gt or lt If gt at the end Both small and large letters can be used 7 3 1 Syn
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