Model 2000 multimeter calibration manual 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.
Warranty keithley instruments, inc. Warrants this product to be free from defects in material and workmanship for a period of 3 years from date of shipment. Keithley instruments, inc. Warrants the following items for 90 days from the date of shipment: probes, cables, rechargeable batteries, diskette...
Model 2000 multimeter calibration manual ©1994, keithley instruments, inc. All rights reserved. Cleveland, ohio, u.S.A. Fourth printing december 2001 document number: 2000-905-01 rev. D title page page 1 monday, december 10, 2001 9:09 pm.
Manual print history the print history shown below lists the printing dates of all revisions and addenda created for this manual. The revision level letter increases alphabetically as the manual undergoes sub- sequent updates. Addenda, which are released between revisions, contain important change i...
The following safety precautions should be observed before using this product and any associated instrumentation. Although some instruments and accessories would normally be used with non-hazardous voltages, there are situations where hazardous conditions may be present. This product is intended for...
Do not touch any object that could provide a current path to the common side of the circuit under test or power line (earth) ground. Al- ways make measurements with dry hands while standing on a dry, insulated surface capable of withstanding the voltage being measured. The instrument and accessories...
Table of contents 1 performance verification introduction..........................................................................................1-2 verification test requirements ..............................................................1-3 performing the verification test procedures ...........
List of illustrations 1 performance verification connections for dc volts verification................................................. 1-7 connections for ac volts verification ................................................. 1-8 connections for dc current verification ...............................
List of tables 1 performance verification recommended verification equipment ................................................1-4 dcv reading limits..............................................................................1-7 acv reading limits .......................................................
1 performance verification.
Introduction use the procedures in this section to verify that the model 2000 multimeter accuracy is within the limits stated in the instrument’s one-year accuracy specifications. You can perform verifica- tion procedures: • when you first receive the instrument to make sure that it was not damaged ...
Verification test requirements be sure that you perform the verification tests: • under the proper environmental conditions. • after the specified warm-up period. • using the correct line voltage. • using the proper calibration equipment. • using the specified reading limits. Environmental condition...
Recommended test equipment table 1-1 summarizes recommended verification equipment. Use the fluke model 5700a calibrator (or the equivalent) to verify model 2000 multimeter measurement accuracy. You can use alternate equipment as long as that equipment has specifications at least as good as those li...
Verification limits the verification limits stated in this section have been calculated using only the model 2000 one-year accuracy specifications, and they do not include test equipment uncertainty. If a par- ticular measurement falls slightly outside the allowable range, recalculate new limits bas...
Performing the verification test procedures test summary verification test procedures include: • dc volts • ac volts • dc current • ac current • resistance if the model 2000 is not within specifications and not under warranty, see the calibration pro- cedures in section 2. Test considerations when p...
Verifying dc voltage check dc voltage accuracy by applying accurate dc voltages from the calibrator to the mod- el 2000 input jacks and verifying that the display reads within specified limits. Follow these steps to verify the dc voltage: 1. Connect the model 2000 hi and lo input jacks to the dc vol...
Verifying ac voltage check ac voltage accuracy by applying accurate ac voltages at specific frequencies from the calibrator to the model 2000 inputs and verifying that the display reads within specified lim- its. Caution do not exceed 1000 v peak between input hi and input lo, or 8 × 10 7 v•hz input...
Table 1-3 acv reading limits acv range applied ac voltage reading limits (1 year, 18°c-28°c) 1khz 50khz 100mv 1v 10v 100v 750v 100.0000mv 1.000000v 10.00000v 100.0000v 700.000v* 99.9100 to 100.0900mv 0.999100 to 1.000900v 9.99100 to 10.00900v 99.9100 to 100.0900v 699.355 to 700.645v 99.8300 to 100.1...
Verifying dc current check dc current accuracy by applying accurate dc currents from the calibrator to the amps input of the model 2000 and verifying that the display reads within specified limits. Fol- low these steps to verify dc current accuracy: 1. Connect the model 2000 amps and input lo jacks ...
Verifying ac current check ac current accuracy by applying accurate ac current at specific frequencies from the calibrator to the model 2000 input and verifying that the display reads within specified limits. Follow these steps to verify the ac current: 1. Connect the model 2000 amps and input lo ja...
Verifying resistance check resistance by connecting accurate resistance values from the calibrator to the model 2000 and verifying that its resistance readings are within the specified limits. Follow these steps to verify resistance accuracy: 1. Using shielded 4-wire connections, connect the model 2...
Table 1-6 limits for resistance verification Ω range nominal applied resistance nominal reading limits (1 year, 18°c-28°c) recalculated limits low limit high limit 100 Ω 1k Ω 10k Ω 100k Ω 1m Ω 10m Ω 100m Ω 100 Ω 1k Ω 10k Ω 100k Ω 1m Ω 10m Ω 100m Ω 99.9860 to 100.0140 Ω 0.999890 to 1.000110k Ω 9.9989...
2 calibration.
Introduction use the procedures in this section to calibrate the model 2000. Calibration procedures in- clude: • comprehensive calibration: calibrate dc and ac voltages, dc and ac currents, and resistance values. • manufacturing calibration: usually only performed at the factory. Warning this inform...
Environmental conditions conduct the calibration procedures in a location that has: • an ambient temperature of 23°c ±5°c • a relative humidity of less than 80% unless otherwise noted warm-up period allow the model 2000 multimeter to warm up for at least one hour before performing cali- bration. If ...
Calibration considerations when performing the calibration procedures: • make sure that the equipment is properly warmed up and connected to the appropriate input jacks. Also make sure that the correct input jacks are selected with the inputs switch. • make sure the calibrator is in operate before y...
Calibration code comprehensive calibration code before performing comprehensive (user) calibration, you must first unlock calibration by en- tering the appropriate calibration code. Front panel calibration code for front panel calibration, follow these steps: 1. Access the calibration menu by pressi...
Comprehensive calibration the comprehensive calibration procedure calibrates the dcv, dci, acv, aci, and ohms functions you can also choose to calibrate only dcv/dci and resistance, or the acv/aci func- tions. These procedures are usually the only ones required in the field. Manufacturing calibratio...
Front panel calibration follow the steps in the following paragraphs for comprehensive, dc only, and ac only cali- bration procedures. The procedures for front panel calibration include: • preparing the model 2000 for calibration • front panel short and open calibration • dc voltage calibration • re...
Front panel short and open calibration at the model 2000 prompt for a front panel short, do the following: 1. Connect the model 8610 low-thermal short to the instrument front panel input and sense terminals as shown in figure 2-1. Make sure the inputs button is not pressed in so that the front input...
Dc voltage calibration after the front panel short and open procedure, the unit will prompt you for the first dc volt- age: +10v. Do the following: 1. Connect the calibrator to the model 2000 as shown in figure 2-2. Wait three minutes to allow for thermal equilibrium before proceeding. Note although...
Note if your calibrator cannot output the values recommended in table 2-3, use the left and right arrow keys, and the up and down range keys to set the model 2000 display value to match the calibrator output voltage. Resistance calibration completing the 100v dc calibration step ends the dc voltage ...
Dc current calibration after the 1m Ω resistance point has been calibrated, the unit will prompt you for 10ma. Fol- low these steps for dc current calibration: 1. Connect the calibrator to the amps and input lo terminals of the model 2000 as shown in figure 2-3. 2. Calibrate each current step summar...
Ac voltage calibration follow these steps for ac voltage calibration: 1. Connect the calibrator to the model 2000 input hi and lo terminals as shown in fig- ure 2-4. 2. Perform the calibration steps summarized in table 2-6. For each step: • set the calibrator to the indicated value, and make sure th...
Ac current calibration after the 700vac at 1khz point has been calibrated, the unit will prompt you for 100ma at 1khz. Follow these steps for ac current calibration: 1. Connect the calibrator to the amps and input lo terminals of the model 2000 as shown in figure 2-3. 2. Perform the calibration step...
Scpi command calibration follow the steps in this section to use scpi commands to perform comprehensive, dc only, and ac only calibration procedures. See section 3 for a detailed list and description of scpi cal- ibration commands. When sending calibration commands, be sure that the model 2000 compl...
Front panel short and open calibration 1. Connect the model 8610 low-thermal short to the instrument input and sense termi- nals as shown in figure 2-1. Make sure the inputs button is not pressed in so that the front inputs are active. Wait at least three minutes before proceeding to allow for therm...
Resistance calibration follow these steps for resistance calibration: 1. Set the calibrator to the resistance mode, and turn on external sensing. Note use external sense (4-wire Ω ) when calibrating all resistance ranges. Be sure that the calibrator external sense mode is turned on. 2. Perform the c...
Dc current calibration after the 1m Ω resistance point has been calibrated, follow these steps for dc current cali- bration: 1. Connect the calibrator to the amps and input lo terminals of the model 2000 as shown in figure 2-3. 2. Perform the calibration steps listed in table 2-10. For each step: • ...
Ac voltage calibration follow these steps for ac voltage calibration: 1. Connect the calibrator to the model 2000 input hi and lo terminals as shown in fig- ure 2-4. 2. Perform the calibration steps summarized in table 2-11. For each step: • set the calibrator to the indicated voltage and frequency,...
Programming calibration dates program the present calibration date and calibration due date by sending the following com- mands: :cal:prot:date , , :cal:prot:ndue , , for example, the following commands assume calibration dates of 12/15/95 and 3/14/96 re- spectively: :cal:prot:date 1995, 12, 15 :cal...
Manufacturing calibration the manufacturing procedure is normally performed only at the factory, but the necessary steps are included here in case the unit is repaired, and the unit requires these calibration proce- dures. Note if the unit has been repaired, the entire comprehensive calibration proc...
Front panel calibration 1. Connect the low-thermal short to the rear panel input jacks, and select the rear inputs with the inputs switch. Allow three minutes for thermal equilibrium. 2. Press in and hold the open key while turning on the power. 3. Press shift then cal, select run, then enter the ap...
Scpi command calibration 1. Connect the low-thermal short to the rear panel input jacks, and select the rear inputs with the inputs switch. Allow three minutes for thermal equilibrium. 2. Press in and hold the open key while turning on the power. 3. Enable calibration by sending the :code command. F...
3 calibration command reference.
Introduction this section contains detailed information about the various model 2000 scpi bus calibra- tion commands. Section 2 of this manual covers detailed calibration procedures. For information about additional commands to control other instrument functions, refer to the model 2000 user's manua...
Information in this section includes: command summary: summarizes all commands necessary to perform comprehensive and factory calibration. Miscellaneous calibration commands: gives detailed explanations of the various com- mands used for miscellaneous functions such as programming the calibration co...
Command summary table 3-1 summarizes model 2000 calibration commands. Table 3-1 calibration command summary command description :calibration :protected :code ‘’ :count? :initiate :lock :lock? :save :date , , :date? :ndue , , :ndue? :dc :step0 :step1 :step2 :step3 :step4 :step5 :step6 :step7 :step8 :...
:calibration :protected :ac :step1 :step2 :step3 :step4 :step5 :step6 :step7 :step8 :step9 :step10 :step11 :step12 :step13 :step14 :step15 calibration root command. Ac cal steps. 10mv ac at 1khz step. 100mv ac at 1khz step. 100mv ac at 50khz step. 1v ac at 1 khz step. 1v ac at 50khz step. 10v ac at ...
Miscellaneous calibration commands miscellaneous commands perform calibration functions such as programming the calibration code and date. These commands are discussed in detail in the following paragraphs. :code (:calibration:protected:code) purpose to program the calibration code or password so th...
:init (:calibration:protected:initiate) purpose to initiate comprehensive and factory calibration procedures. Format :cal:prot:init parameter none description the :init command enables model 2000 calibration when performing these procedures over the bus. This command must be sent to the unit after s...
:save (:calibration:protected:save) purpose to save calibration constants in eerom after the calibration procedure. Format :cal:prot:save parameter none description the :save command stores internally calculated calibration constants de- rived during both comprehensive and manufacturing calibration ...
:ndue :calibration:protected:ndue) purpose to send the next calibration due date to the instrument. Format :cal:prot:ndue , , parameters = 1994 to 2093 = 1 to 12 = 1 to 31 query format :cal:prot:ndue? Response , , description the :ndue command allows you to store the date when calibration is next du...
Dc calibration commands the :dc commands perform comprehensive (user) calibration of the dcv, dci, and ohms functions. Table 3-2 summarizes these comprehensive calibration commands along with param- eter limits. Table 3-2 dc calibration commands command description parameter limits :calibration :pro...
:step1 (:calibration:protected:dc:step1) purpose to perform front terminal short-circuit calibration. Format :cal:prot:dc:step1 parameter none description :step1 performs the short-circuit calibration step in the comprehensive cal- ibration procedure. Connect a low-thermal short (model 8610) to the ...
:step4 (:calibration:protected:dc:step4) purpose to program the -10v dc comprehensive calibration step. Format :cal:prot:dc:step4 parameter = -9 to -11 [v] description :step4 programs the -10v dc comprehensive calibration step. The allow- able range of the calibration voltage parameter is from -9 to...
:step7 (:calibration:protected:dc:step7) purpose to program the 10k Ω 4-wire comprehensive calibration step. Format :cal:prot:dc:step7 parameter = 9e3 to 11e3 [ Ω ] description :step7 programs the 10k Ω 4-wire resistance comprehensive calibration step. The allowable range of the calibration resistan...
:step10 (calibration:protected:dc:step10) purpose to program the 10ma comprehensive calibration step. Format :cal:prot:dc:step10 parameter = 9e-3 to 11e-3 [a] description :step10 programs the 10ma comprehensive calibration step. The allowable range of the calibration current parameter is from 9e-3 t...
Ac calibration commands the :ac commands perform comprehensive (user) calibration of the acv and aci functions. Table 3-3 summarizes these comprehensive calibration commands. Table 3-3 ac calibration commands command description :calibration :protected :ac :step 1 2 3 4 5 6 7 8 9 10 11 12 13 10mv ac...
:ac:step (calibration:protected:ac:step) purpose to program individual ac calibration steps. Format :cal:prot:ac:step parameters 1 10mv ac at 1khz calibration step. 2 100mv ac at 1khz calibration step. 3 100mv ac at 50khz calibration step. 4 1v ac at 1khz calibration step. 5 1v ac at 50khz calibrati...
Manufacturing calibration commands three calibration steps are only performed at the factory or when the unit has been repaired: :calibration:protected:ac:step14 1v ac at 3hz :calibration:protected:ac:step15 1v ac at 1khz :calibration:protected:dc:step0 rear terminal short circuit :ac:step (calibrat...
Bus error reporting methods to determine calibration errors are discussed below. Refer to appendix b for a sum- mary of calibration errors and additional information on specific errors. Detecting calibration errors if an error occurs during any calibration step, the model 2000 will generate an error...
Detecting calibration step completion when sending calibration commands over the remote interface, you must wait until the in- strument completes the present operation before sending a command. You can use either *opc? Or *opc to help determine when each calibration step is completed. Using the *opc...
Generating an srq on calibration complete an srq (service request) can be used to detect operation complete instead of repeatedly poll- ing the model 2000. To use this method, send both *ese 1 and *sre 32 to the instrument, then include the *opc command at the end of each calibration command line, a...
A specifications.
Jmm 8/8/01 rev. E 2000 6½-digit multimeter specifications dc characteristics conditions: med (1 plc) 1 or slow (10 plc) accuracy: ±(ppm of reading + ppm of range) or med (1 plc) with filter of 10 (ppm = parts per million) (e.G., 10ppm = 0.001%) function range resolution test current or burden voltag...
Jmm 8/8/01 rev. E 2000 6½-digit multimeter specifications dc operating characteristics 2 function digits readings/s plcs 8 6½ 3, 4 5 10 6½ 3, 7 30 1 6½ 3, 5 50 1 5½ 3, 5 270 0.1 5½ 5 500 0.1 5½ 5 1000 0.04 dcv (all ranges), dci (all ranges), and ohms ( 4½ 5 2000 0.01 dc system speeds 2, 6 range chan...
Jmm 8/8/01 rev. E 2000 6½-digit multimeter specifications true rms ac voltage and current characteristics accuracy 1 : ±(% of reading + % of range), 23°c ±5 °c voltage range resolution calibration cycle 3 hz-10 hz 10 hz-20 khz 20 khz-50 khz 50 khz-100 khz 100 khz-300 khz 100.0000 mv 0.1 µv 1.000000 ...
Jmm 8/8/01 rev. E 2000 6½-digit multimeter specifications frequency and period characteristics 1, 2 acv range frequency range period range gate time resolution ±(ppm of reading) accuracy 90 day/1 year ±(%of reading) 100 mv to 750 v 3 hz to 500 khz 333 ms to 2 µs 1 s (slow) 0.3 0.01 frequency notes 1...
Jmm 8/8/01 rev. E 2000 6½-digit multimeter specifications triggering and memory reading hold sensitivity: 0.01%, 0.1%, 1%, or 10% of reading. Trigger delay: 0 to 99 hrs (1ms step size). External trigger latency: 200µs + off, trigger delay = 0. Memory: 1024 readings. Math functions rel, min/max/avera...
Accuracy calculations the information below discusses how to calculate accuracy for both dc and ac characteris- tics. Calculating dc characteristics accuracy dc characteristics accuracy is calculated as follows: accuracy = ±(ppm of reading + ppm of range) (ppm = parts per million, and 10ppm = 0.001%...
Calculating dbm characteristics accuracy as an example of how to calculate the actual reading limits for a 13dbm measurement with a reference impedance of 50 Ω , assume an applied signal 0.998815v. The relationship between voltage and dbm is as follows: from the previous example on calculating dc ch...
Calculating db characteristics accuracy the relationship between voltage and db is as follows: as an example of how to calculate the actual readings limits for db, with a user-defined v ref of 10v, you must calculate the voltage accuracy and apply it to above equation. To calculate a -60db measureme...
Optimizing measurement accuracy the configurations listed below assume that the multimeter has had factory setups restored. Dc voltage, dc current, and resistance: • select 6 ½ digits, 10 plc, filter on (up to 100 readings), fixed range. • use rel on dc voltage and 2-wire resistance measurements. • ...
Optimizing measurement speed the configurations listed below assume that the multimeter has had factory setups restored. Dc voltage, dc current, and resistance: select 3 ½ digits, 0.01 plc, filter off, fixed range. Ac voltage and ac current: select 3 ½ digits, 0.01 plc, filter off, fixed range. Temp...
A-12 specifications.
B error messages.
Introduction errors that may occur during model 2000 calibration are summarized in table b-1. These er- rors may be requested by using the :syst:err? Query. The table shows the error number and error message string as sent by the instrument. Table b-1 error summary error number description +400 +401...
+459 +460 +461 +462 +463 +464 +465 +466 +467 +468 +469 +470 +471 +472 +473 +459, “10 vac zero error” +460, “10 vac full scale error” +461, “10 vac noise error” +462, “100 vac zero error” +463, “100 vac full scale error” +464, “750 vac zero error” +465, “750 vac full scale error” +466, “750 vac noise...
C calibration program.
Introduction this appendix includes a calibration program written in basic to help you calibrate the model 2000. Refer to section 2 for more details on calibration procedures, equipment, and con- nections. Computer hardware requirements the following computer hardware is required to run the calibrat...
General program instructions 1. With the power off, connect the model 2000 and the calibrator to the ieee-488 interface of the computer. Be sure to use shielded ieee-488 cables for bus connections. 2. Turn on the computer, the model 2000, and the calibrator. Allow the model 2000 and the calibrator t...
Case 4, 5, 11, 12, 14 to 22, 24 to 25 print #1, "output 4;"; msg$ print #1, "output 4;oper" case 6 to 9 print #1, "output 4;"; msg$ print #1, "output 4;extsense on" print #1, "output 4;oper" print #1, "output 4;out?" print #1, "enter 4" input #2, r, r$, s cmd$ = cmd$ + " " + str$(r) case 10, 13, 23 ...
Do: print #1, "output 4;isr?" ' query status register. Print #1, "enter 4" input #2, s loop until (s and &h1000) ' test settle bit. Return ' endprog: ' close files, end program. Beep: print "calibration aborted." print #1, "output 4;stby" print #1, "output 16;:syst:pres" print #1, "local 4 16" close...
Index symbol :acstep 3-17 :acstep 3-18 :code 3-6 :count? 3-6 :date 3-8 :dcstep0 3-18 :init 3-7 :lock 3-7 :lock? 3-7 :ndue 3-9 :save 3-8 :step1 3-11 :step2 3-11 :step3 3-11 :step4 3-12 :step5 3-12 :step6 3-12 :step7 3-13 :step8 3-13 :step9 3-13 :step10 3-14 :step11 3-14 :step12 3-15 a ac calibration ...
S saving calibration constants 2-19 scpi command calibration 2-14, 2-22 setting calibration dates 2-13 software requirements c-2 specifications a-1 status byte eav (error available) bit 3-19 t test considerations 1-6 u unlocking manufacturing calibration 2-20 using the *opc command 3-20 using the *o...
Service form model no. _____________ serial no. _________________ date_________________ name and telephone no. ________________________________________________________ company ______________________________________________________________________ list all control settings, describe problem and check...
Specifications are subject to change without notice. All keithley trademarks and trade names are the property of keithley instruments, inc. All other trademarks and trade names are the property of their respective companies. Keithley instruments, inc. 28775 aurora road • cleveland, ohio 44139 • 440-...