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Models 2510 and 2510-AT TEC SourceMeter

Service Manual

2510-902-01 Rev. E / March 2010

G R E A T E R M E A S U R E O F C O N F I D E N C E

2510-902-01 (E - Mar 2010)(FtCr).qxp 3/16/2010 4:57 PM Page 1

Содержание TEC SourceMeter 2510

Страница 1: ...ithley com Models 2510 and 2510 AT TEC SourceMeter Service Manual 2510 902 01 Rev E March 2010 A G R E A T E R M E A S U R E O F C O N F I D E N C E 2510 902 01 E Mar 2010 FtCr qxp 3 16 2010 4 57 PM P...

Страница 2: ...USE OF ITS INSTRUMENTS AND SOFTWARE EVEN IF KEITHLEY INSTRUMENTS INC HAS BEEN ADVISED IN ADVANCE OF THE POSSIBILITY OF SUCH DAMAGES SUCH EXCLUDED DAM AGES SHALL INCLUDE BUT ARE NOT LIMITED TO COSTS OF...

Страница 3: ...2510 902 01 E Mar 2010 Service book Page 2 Tuesday March 16 2010 1 04 PM...

Страница 4: ...c All rights reserved Cleveland Ohio U S A Fifth Printing March 2010 Document Number 2510 902 01 Rev E All references in this manual to the Model 2510 also apply to the Model 2510 AT unless otherwise...

Страница 5: ...previous Revi sion of the manual are incorporated into the new Revision of the manual Each new Revision includes a revised copy of this print history page Revision A Document Number 2510 902 01 April...

Страница 6: ...sources with high tran sient over voltages Installation Category II connections require protection for high transient over voltages often associated with local AC mains connections Assume all measurem...

Страница 7: ...ges The WARNING heading in a manual explains dangers that might result in personal injury or death Always read the associated information very carefully before performing the indicated procedure The C...

Страница 8: ...uracy 1 6 Voltage readback accuracy 1 7 Voltage limit accuracy 1 8 Current accuracy 1 8 Output current accuracy 1 8 Current readback accuracy 1 9 Current limit accuracy 1 10 AC resistance accuracy 1 1...

Страница 9: ...lacement 3 2 4 Troubleshooting Introduction 4 2 Safety considerations 4 2 Repair considerations 4 2 Power on self test 4 3 Front panel tests 4 3 KEYS test 4 3 DISPLAY PATTERNS test 4 4 CHAR SET test 4...

Страница 10: ...ng information 6 2 Factory service 6 2 Component layouts 6 2 A Specifications B CalibrationReference Introduction B 2 Command summary B 2 Miscellaneous commands B 3 SENSe commands B 6 SOURce commands...

Страница 11: ...omputer hardware requirements C 2 Software requirements C 2 Calibration equipment C 2 General program instructions C 3 Program C 1 Model 2510 calibration program C 4 2510 902 01 E Mar 2010 Service boo...

Страница 12: ...3 Figure 2 5 I SS and V SS calibration resistor connections 2 17 Figure 2 6 AC ohms calibration connections 2 18 3 RoutineMaintenance Figure 3 1 Rear panel 3 2 4 Troubleshooting Figure 4 1 Overall blo...

Страница 13: ...tion command summary 2 20 Table 2 6 Remote calibration step summary 2 21 3 RoutineMaintenance Table 3 1 Power line fuse 3 3 4 Troubleshooting Table 4 1 Display board checks 4 15 Table 4 2 Power supply...

Страница 14: ...1 PerformanceVerification 2510 902 01 E Mar 2010 Service book Page 1 Tuesday March 16 2010 1 04 PM...

Страница 15: ...injury or death if contacted Use standard safety pre cautions when working with hazardous voltages NOTE If the instrument is still under warranty and its performance is outside specified lim its cont...

Страница 16: ...long as that equipment has specifications at least as good as those listed in Table 1 1 Keep in mind however that test equipment uncertainty will add to the uncertainty of each measurement Generally t...

Страница 17: ...ume you are testing the operat ing voltage function using a 10V value Using the Model 2510 operating voltage one year accuracy specification of 0 1 of reading 4mV offset the calculated output limits a...

Страница 18: ...plays SAVESETUP MENU SAVE RESTORE POWERON RESET 3 Select RESET and then press ENTER The unit displays RESET ORIGINAL DFLTS BENCH GPIB 4 Select BENCH and then press ENTER to restore BENCH defaults Perf...

Страница 19: ...scanner multiplexer or other switching equipment Adjustingsetpoints Before making many verification measurements you must properly adjust the setpoint as covered below 1 First select the function to...

Страница 20: ...EDIT keys adjust the Model 2510 output voltage as measured by the DMM to 9 000V or closest possible value 6 Verify that the Model 2510 readback display top display line is within 8 987 to 9 013V limi...

Страница 21: ...s completed Current accuracy Outputcurrentaccuracy Follow the steps below to verify that Model 2510 output current accuracy is within specified limits The test involves setting the output current to a...

Страница 22: ...voltage reading and R is the characterized value of the 1 resistor 7 Verify that the current calculated in step 7 is within 4 474 to 4 526A limits 8 Repeat steps 6 and 7 for an output current of 4 500...

Страница 23: ...istor value Compute the current as follows I V R where V is the DMM voltage reading and R is the characterized value of the 1 resistor 9 Verify that the current calculated in step 9 is within 4 275 to...

Страница 24: ...del 2510 voltage function by pressing the V key WARNING NO INTERNAL OPERATOR SERVICABLE PARTS SERVICE BY QUALIFIED PERSONNEL ONLY WARNING NO INTERNAL OPERATOR SERVICABLE PARTS SERVICE BY QUALIFIED PER...

Страница 25: ...sistance RT is dis played on the lower display line on the right For example RT 099 98 6 Verify that the sensor reading for the 100 resistance in Table 1 3 is within stated limits WARNING NO INTERNAL...

Страница 26: ...menu Table 1 3 Sensor resistance measurement accuracy limits Sensor range Test resistance1 Model 2510 sensor reading limits2 1 year 18 C 28 C 100 1k 10k 100k 100 1k 10k 100k 99 89 to 100 11 0 9992 to...

Страница 27: ...Models 2510 and 2510 AT Performance Verification 1 14 2510 902 01 E Mar 2010 Service book Page 14 Tuesday March 16 2010 1 04 PM...

Страница 28: ...2 Calibration 2510 902 01 E Mar 2010 Service book Page 1 Tuesday March 16 2010 1 04 PM...

Страница 29: ...e calibration procedures at an ambient temperature of 18 28 C 65 82 F with relative humidity of less than 70 unless otherwise noted Warm up period Allow the Model 2510 to warm up for at least one hour...

Страница 30: ...t Do not connect test equipment to the Model 2510 through a scanner or other switching equipment If an error occurs during calibration the Model 2510 will generate an appropriate error message See App...

Страница 31: ...0 2k 20k 200k 23ppm 19ppm 7 4ppm 7 4ppm 29 8ppm Resistors2 Isotec RUG Z 1R00 0 1 1 0 1 100W 100 1 1k 1 10k 1 100k 1 INPUT OUTPUT Mating Connector3 Keithley CS 846 Clean Copper Wire 18 22 AWG 1 Ninety...

Страница 32: ...ill display the following PASSWORD Use ENTER or EXIT 3 Use the and keys to select the letter or number and use the and arrow keys to choose the position Press for letters for numbers Enter the present...

Страница 33: ...Select CHANGE PASSWORD and then press ENTER The instrument will display the following New Pwd 002510 Use ENTER or EXIT 4 Using the EDIT keys enter the new password on the display 5 Once the desired p...

Страница 34: ...ATES and then press ENTER The Model 2510 will display the next and last calibration dates and the calibration count as in the following example NEXT CAL 02 15 2001 Last calibration 02 15 2000 Count 00...

Страница 35: ...R TYPE then press ENTER Choose THERMISTOR then press ENTER Select SENSE MODE then press ENTER Choose 4 WIRE then press ENTER Press EXIT as required to back out of the menu structure and return to norm...

Страница 36: ...als Figure 2 3 and Figure 2 4 100 resistor then short to INPUT terminals Figure 2 3 and Figure 2 4 1k resistor then short to INPUT terminals Figure 2 3 and Figure 2 4 DMM and 1k resistor to INPUT term...

Страница 37: ...instru ment will then display the following VOLTAGE CAL Press ENTER to output 0 0V 8 Press ENTER The Model 2510 will source 0V and at the same time display the following DMM RDG 00 00000 V Use ENTER...

Страница 38: ...TER 6 With the 1 resistor still connected to the OUTPUT terminals press ENTER The Model 2510 will automatically complete the current protection calibration process 7 Disconnect the 1 resistor from the...

Страница 39: ...lowing THERMISTOR CAL Connect a Short to temperature sensor and press ENTER 7 Short all four INPUT terminals together using clean copper wire as shown in Figure 2 4 Allow one minute for thermal equili...

Страница 40: ...nce value then press ENTER The unit will display the following THERMISTOR CAL Connect a Short to temperature sensor and press ENTER 14 Short all four INPUT terminals together using clean copper wire s...

Страница 41: ...0 00000 Use ENTER or EXIT 23 Press ENTER to complete the shorted calibration step then remove the shorting wires from the INPUT terminals 24 From the THERMISTOR CAL menu select 100k then press ENTER T...

Страница 42: ...ng clean copper wire see Figure 2 4 Allow one minute for thermal equilibrium 37 Press ENTER The Model 2510 will display the following RES VALUE 00 00000 Use ENTER or EXIT 38 Press ENTER to complete th...

Страница 43: ...odel 2510 display to agree with that value Press ENTER 49 From the TEMPERATURE CAL menu select V SS then press ENTER The unit dis plays the following V SS CAL Connect 1k to temperature sensor and pres...

Страница 44: ...PUT F INPUT S INPUT F Connect sense S leads as close as possible to resistor body 1k Resistor NEXT PREV POWER DISPLAY 2002 MULTIMETER DCV ACV DCI ACI 2 4 FREQ TEMP REL TRIG INFO LOCAL EXIT ENTER RANGE...

Страница 45: ...SRC CAL Open Peltier leads then press ENTER 2 Disconnect all resistors and test leads from the Model 2510 OUTPUT terminals 3 Press ENTER to complete voltage source calibration 4 Press EXIT to return...

Страница 46: ...unit will then prompt for the calibration due date NEXT CAL 02 15 2001 Use ENTER or EXIT 4 Set the calibration due date to the desired value then press ENTER Press ENTER again to confirm the date 5 On...

Страница 47: ...mmand Description CALibration PROTected CODE password SENSe VOLTage NRf CURRent NRf TEMPerature NRf SOURce NRf AUTO IPDac RESistance AC NRf DATE y m d NDUE y m d SAVE LOCK Calibration subsystem Calibr...

Страница 48: ...tion CAL PROT CODE KI002510 5 Table 2 6 summarizes the various calibration steps and associated commands which are covered in more detail throughout the procedure Table 2 6 Remote calibration step sum...

Страница 49: ...CAL PROT TEMP Resistance_Value CAL PROT TEMP DMM_Reading SENS TEMP TRAN VSS CAL PROT TEMP DMM_Reading CAL PROT TEMP 0 100 to INPUT Figure 2 3 Short to INPUT Figure 2 4 1k to INPUT Figure 2 3 Short to...

Страница 50: ...e parameter for the follow ing commands CAL PROT SENS VOLT DMM_Reading CAL PROT SOUR DMM_Reading 8 Send the following command to output 8 5V SOUR VOLT 8 5 9 Note and record the DMM reading then send t...

Страница 51: ...d this command CAL PROT SENS TEMP 0 7 Connect the 1k resistor to the Model 2510 INPUT terminals Figure 2 3 8 Send this command to select the 1k resistance range SENS TEMP THER RANG 1e3 9 Send the foll...

Страница 52: ...0 24 Connect the 1000 resistor to the INPUT terminals Figure 2 5 25 Send this command to select the 1000 range SENS TEMP RTD RANG 1000 26 Send the following command with the characterized 1000 resista...

Страница 53: ...nect all resistors and test leads from the Model 2510 OUTPUT terminals 2 Turn on the output by sending OUTP ON 3 Send this command to complete voltage source calibration CAL PROT SOUR AUTO 4 Turn off...

Страница 54: ...3 RoutineMaintenance 2510 902 01 E Mar 2010 Service book Page 1 Tuesday March 16 2010 1 04 PM...

Страница 55: ...OR SERVICABLE PARTS SERVICE BY QUALIFIED PERSONNEL ONLY WARNING NO INTERNAL OPERATOR SERVICABLE PARTS SERVICE BY QUALIFIED PERSONNEL ONLY CAUTION FOR CONTINUED PROTECTION AGAINST FIRE HAZARD REPLACE F...

Страница 56: ...revent instrument damage use only the fuse type specified in Table 3 1 3 Reinstall the fuse carrier pushing it in firmly until it locks into place NOTE If the power line fuse continues to blow a circu...

Страница 57: ...3 4 Routine Maintenance Models 2510 and 2510 AT 2510 902 01 E Mar 2010 Service book Page 4 Tuesday March 16 2010 1 04 PM...

Страница 58: ...4 Troubleshooting 2510 902 01 E Mar 2010 Service book Page 1 Tuesday March 16 2010 1 04 PM...

Страница 59: ...for repair If you are not equipped and or qualified it is strongly recommended that you send the unit back to the factory for repairs or limit repairs to the PC board replacement level Without proper...

Страница 60: ...ps to run the KEYS test 1 Display the MAIN MENU by pressing the MENU key 2 Using the EDIT keys select TEST and press ENTER to display the SELF TEST MENU 3 Select DISPLAY TESTS and press ENTER to displ...

Страница 61: ...s of the first digit are sequenced Vertical lines pixels of the first digit are sequenced Each digit and adjacent annunciator is sequenced All the pixels of the selected digit are on 5 When finished a...

Страница 62: ...d RS 232 ports as well as associated interfacing circuits Power supplies converts the AC line voltage into DC voltages that supply the power for the digital and analog circuits and the class D power a...

Страница 63: ...compo nents The output stage current that flows through R102 develops a voltage that is amplified by U105 and compared with a programmed current limit in 10 bit DAC U132 If the current value exceeds t...

Страница 64: ...F 10K F 0 1UF 1 2 PWM 470PF 0 1 f 30 1K 3 HIP4081 BRIDGEOFF 3 01K F 1K 1 F F 1 7K 15V F 0 02 500 20K I_LIM IP_DAC I_LIM PWM_CLK BRIDGEOFF Figure 4 3 Simplified schematic of class D amplifier 2510 902...

Страница 65: ...ge transistors function as simple switches with the switching phases and duty cycles controlled by the pulse width modulator as shown B Pulse Width Modulator Waveforms A H Bridge Switching ALO BHI AHI...

Страница 66: ...switches between alter nate configurations as shown with the duration and duty cycles controlled by the pulse width modulator The step down buck regulator smooths the H bridge switching waveform into...

Страница 67: ...e mux is fed to the A D converter for conversion to digital data Additional signals switched by the mux during the measurement cycle include a reference voltage reference temperature internal circuit...

Страница 68: ...ccurately determined and internal software converts the resistance into an equivalent temperature reading A Dconverter The Model 2510 unit uses a multi slope charge balance A D converter with a single...

Страница 69: ...tage from the module powers the output stage directly and this supply voltage is further regulated to develop a 5VF floating supply voltage and the 5VD digital voltage that pow ers the digital circuit...

Страница 70: ...erial EEPROM U141 External communication is provided via GPIB and serial interfaces A 9914 GPIB IEEE 488 standard interface IC U167 is used for the GPIB and a U166 provides the voltage conversion for...

Страница 71: ..._OUT U116 PWM_CLK OFFSTB A D IN U136 MUXC MUXB MUXA 10_MA Range N C SHUNT_100 SHUNT_1K SHUNT_10K U145 U135 MEAS_DUT_HI MEAS_DUT_LO GND GND GAIN_4 GAIN_16 A2DGND N C SDAT U163 68332 U134 MEAS_100K MEAS...

Страница 72: ...03 and U904 are the grid drivers and U901 and U905 are the dot drivers Note that dot driver and grid driver data is serially transmitted from the microcontroller PD3 and PC1 Troubleshooting Troublesho...

Страница 73: ...4 3 Digital circuitry checks Step Item component Required condition Remarks 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 Power on test U163 pin 19 U163 pin 7 U163 pin 68 U163 A0 A19 U163 D0 D15...

Страница 74: ...sconnect the line cord and all other test leads and cables from the instrument 2 Remove the case cover and mother board as covered in Section 5 3 Locate the fuse on the power supply module circuit boa...

Страница 75: ...lean ing precautions Nocommlinkerror A No Comm Link error indicates that the front panel processor has stopped communicat ing with the main processor which is located on the mother board This error in...

Страница 76: ...5 Disassembly 2510 902 01 E Mar 2010 Service book Page 1 Tuesday March 16 2010 1 04 PM...

Страница 77: ...ds by the edges and shields Do not touch any board traces or components not associated with repair Do not touch areas adjacent to electrical contacts Use dry nitrogen gas to clean dust off PC boards S...

Страница 78: ...perly grounded work station Ground yourself with a suitable wrist strap Handle the devices only by the body do not touch the pins Ground any printed circuit board into which a semiconductor device is...

Страница 79: ...nside surface 3 Remove rear bezel To remove the rear bezel loosen the two screws that secure the rear bezel to the chassis then pull the bezel away from the case 4 Remove bottom screws Remove the four...

Страница 80: ...Two retaining clips are located on each side of the front panel Pull the retaining clips outward and at the same time pull the front panel assembly forward until it separates from the chassis 3 Unplug...

Страница 81: ...e rear of the chassis 2 Remove the fan from the chassis Instrument reassembly Reassemble the instrument by reversing the previous disassembly procedures Make sure that all parts are properly seated an...

Страница 82: ...6 ReplaceableParts 2510 902 01 E Mar 2010 Service book Page 1 Tuesday March 16 2010 1 04 PM...

Страница 83: ...re to include the following information Instrument model number Model 2510 Instrument serial number Part description Component designation if applicable Keithley part number Factory service If the ins...

Страница 84: ...163 167 170 171 181 182 196 198 200 CAP 1UF 10 25V CERAMIC C 495 1 C164 C184 CAP 2200P 10 100V CERAMIC C 430 2200P C165 166 186 193 220 225 226 229 230 231 CAP 01UF 10 50V CERAMIC C 491 01 C168 169 1...

Страница 85: ...RG CS 339 J1014 CONN HEADER STRAIGHT SOLDER PIN CS 368 16 J102 J1015 LATCHING HEADER FRICTON SGL ROW CS 724 3 K101 N C RELAY 1 FORMB AQV214 RL 176 K102 MINI POWER RELAY DK1A 5V RL 249 L101 L105 CHOKE...

Страница 86: ...171 RES 10K 1 100MW THICK FILM R 418 10K R132 R311 RES 7 5K 1 100MW THICK FILM R 418 7 5K R133 RES 51 5 125MW METAL FILM R 375 51 R134 R137 R201 R306 RES 200 1 100MW THICK FILM R 418 200 R138 R139 R31...

Страница 87: ...49 251 253 263 266 RES 10K 1 100MW THICK FILM R 418 10K R214 RES 3 2K 1 1 10W METAL FILM R 263 3 2K R220 222 230 231 258 262 267 272 280 281 RES 1K 1 100MW THICK FILM R 418 1K R223 R224 R225 R226 R227...

Страница 88: ...PA177GS IC 960 U121 IC PRECISION BIFET OPAMP IC 1194 U122 IC DUAL BIPOLAR OP AMP LT1124CS8 IC 955 U125 U172 IC VOLTAGE REFERENCE IC 1065 U126 U130 U131 U152 U153 IC CMOS ANAL SWITCH DG444DY IC 866 U12...

Страница 89: ...ER MAX202 IC 952 U167 IC GPIB ADAPTER 9914A LSI 123 U168 PROGRAMMED ROM 2510 800 U169 IC OCTAL INTER BUS TRANS 75161 IC 647 U170 IC OCTAL INTERFACE BUS 75160 IC 646 U171 U137 IC 2 INPUT OR GATE IC 120...

Страница 90: ...CONN BERG CS 339 J1033 CONN HEADER STRAIGHT SOLDER PIN CS 368 16 Q901 Q902 TRANS NPN GEN PURPOSE BC868 TG 293 R901 RES NET 15K 2 1 875W TF 219 15K R902 RES 13K 5 125MW METAL FILM R 375 13K R903 R904...

Страница 91: ...6 1 FUSE HOLDER FH 39 1 FUSE EXP 2 5 5X20MM FU 106 2 5 1 HANDLE 428 329F 1 LENS LED 6517 309B 1 LINE CORD CO 7 1 LINE MODULE PM 1 1B 1 MATING INPUT OUTPUT CONNECTOR CS 846 1 MEMBRANE SWITCH FRONT PAN...

Страница 92: ...A Specifications 2510 902 01 E Mar 2010 Service book Page 1 Tuesday March 16 2010 2 33 PM...

Страница 93: ...e RTD Thermistor Solid State Current Voltage 100 1 k 100 1 k 10 k 100 k Output ISS Output VSS Excitation 9 2 50 mA 833 A 2 5 mA 833 A 100 A 33 A 2 5 mA 13 5 V Compliance 833 A max 15 75 V max Nominal...

Страница 94: ...stated as follows Accuracy of reading offset As an example of how to calculate the actual limits assume an output voltage of 5V You can compute the limits from one year operating voltage accuracy spec...

Страница 95: ...A 4 Specifications Models 2510 and 2510 AT 2510 902 01 E Mar 2010 Service book Page 4 Tuesday March 16 2010 2 33 PM...

Страница 96: ...B CalibrationReference 2510 902 01 E Mar 2010 Service book Page 1 Tuesday March 16 2010 1 04 PM...

Страница 97: ...commands protected by code password Unlock calibration Default code password KI002510 Query calibration code password Calibrate Peltier voltage measurement Query Peltier voltage calibration constants...

Страница 98: ...remote password is KI002510 NOTE The CODE command should be sent only once before performing calibration Do not send CODE before each calibration step To change the code first send the present code t...

Страница 99: ...ected SAVE Purpose To save calibration constants in EEROM after the calibration procedure Format cal prot save Description The SAVE command stores internally calculated calibration constants derived d...

Страница 100: ...must be delimited by commas Example CAL PROT DATE 2000 11 20 Send cal date 11 20 2000 NDUE CALibration PROTected NDUE Purpose To send the next calibration due date to the instrument Format cal prot n...

Страница 101: ...y allows you to request the Peltier voltage calibration parameters Example CAL PROT SENS VOLT 8 51 Calibrate positive voltage CURRent CALibration PROTected SENSe CURRent CALibration PROTected SENSe CU...

Страница 102: ...ocess a 100 1k 10k or 100k nominal resistor or a short must be connected to the INPUT terminals and the characterized value a zero value or a voltage reading is sent as the command parameter depending...

Страница 103: ...imes once each with parameters of approximately F S full scale 0 and F S The actual parameters are voltage readings taken with a precision DMM The CAL PROT SOUR DATA query allows you request the volta...

Страница 104: ...ion DAC RESistance commands RESistance CALibration PROTected RESistance AC CALibration PROTected RESistance AC DATA Purpose To calibrate the AC ohms circuit Format cal prot res Resistance_Value Parame...

Страница 105: ...s byte EAV Error Available bit Whenever an error is available in the error queue the EAV Error Available bit bit 2 of the status byte will be set Use the STB query to obtain the status byte then test...

Страница 106: ...n gain data invalid 531 I Protection offset data invalid 532 I Protection DAC Overflow 533 I Protection DAC Underflow 540 V Meas gain data invalid 541 V Meas offset data invalid 542 V Meas gain data i...

Страница 107: ...etion of each calibration step In order to use OPC to detect the end of each calibration step do the following 1 Enable operation complete by sending ESE 1 This command sets the OPC operation complete...

Страница 108: ...method send both ESE 1 and SRE 32 to the instrument then include the OPC command at the end of each calibration command line as covered above Clear the SRQ by querying the ESR using the ESR query to c...

Страница 109: ...B 14 Calibration Reference Models 2510 and 2510 AT 2510 902 01 E Mar 2010 Service book Page 14 Tuesday March 16 2010 1 04 PM...

Страница 110: ...C CalibrationProgram 2510 902 01 E Mar 2010 Service book Page 1 Tuesday March 16 2010 1 04 PM...

Страница 111: ...IEEE 488 interface for the computer Two shielded IEEE 488 connecting cables Keithley Model 7007 Software requirements In order to use the calibration programs you will need the following computer soft...

Страница 112: ...ECHP EXE is properly initialized 6 Enter the QBasic editor and type in the program below NOTE Be sure to change the resistor parameters R R 1 R 4 to the characterized values of the 1 100 1k 10k and 10...

Страница 113: ...tialize 2002 PRINT 1 OUTPUT 16 FORM ELEM READ 2002 reading data only Replace nominal resistor values below with characterized values R 1 1 ohm value R 1 100 100 ohm value R 2 1e3 1k ohm value R 3 1e4...

Страница 114: ...ter calibration due date yyyy mm dd D PRINT 1 OUTPUT 15 CAL PROT NDUE D PRINT 1 OUTPUT 15 CAL PROT SAVE Save calibration constants GOSUB ErrCheck PRINT 1 OUTPUT 15 CAL PROT LOCK Lock out calibration P...

Страница 115: ...PROT SENS VOLT CAL PROT SOUR OUTP OFF DATA OUTP ON CAL PROT SENS CURR CAL PROT IPD OUTP OFF DATA SYST RSEN ON SENS TEMP TRAN THER DATA SENS TEMP THER RANG 100 CAL PROT SENS TEMP CAL PROT SENS TEMP 0 D...

Страница 116: ...ements C 2 Connections AC ohms calibration 2 18 Current and current protection calibration 2 11 for AC resistance verification test 1 11 for current verification tests 1 9 for sensor resistance accura...

Страница 117: ...rification test procedures 1 5 Adjusting setpoints 1 6 Test considerations 1 6 Test summary 1 5 PID hardware loop control 4 11 Power line fuse 3 3 Power supply checks 4 16 Power on self test 4 3 Princ...

Страница 118: ...og circuitry checks 4 17 Digital circuitry checks 4 16 Display board checks 4 15 Power supply checks 4 16 U Unlocking calibration 2 5 by remote 2 6 from the front panel 2 5 V Verification limits 1 4 E...

Страница 119: ...2510 902 01 E Mar 2010 Service book Page 4 Tuesday March 16 2010 1 04 PM...

Страница 120: ...ll other trademarks and trade names are the property of their respective companies A G R E A T E R M E A S U R E O F C O N F I D E N C E Keithley Instruments Inc Corporate Headquarters 28775 Aurora Ro...

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