Keithley 2002, Calibration Manual, Page: 48 / 114

Calibration
2-19
10. Set the calibrator output to 200V AC at 30kHz, then
press ENTER. The Model 2002 will display the
following:
Low-Level Cal - Step 4 of 13
11. The unit will then prompt for the next calibration signal:
Connect 1.5V @ 1kHz
12. Set the calibrator for 1.5V AC at a frequency of 1kHz.
The Model 2002 will display the following:
Low-Level Cal - Step 5 of 13
13. The unit will display the following:
Connect 200mV @ 1kHz
14. Program the calibrator to output 200mV at a frequency
of 1kHz, then press ENTER. The Model 2002 will then
display the following:
Low-Level Cal - Step 6 of 13
15. When finished with this step, the unit will display the
following:
Connect 5mV @ 100kHz
16. Set the calibrator to output 5mV at a frequency of
100kHz, then press ENTER. The Model 2002 will then
display the following while calibrating:
Low-Level Cal - Step 7 of 13
17. Following step 7, the instrument will display the follow-
ing message to prompt for the next calibration signal:
Connect 0.5mV @ 1kHz
18. Program the calibrator to output 0.5mV at 1kHz, then
press ENTER. The unit will display the following in-
progress message:
Low-Level Cal - Step 8 of 13
19. Next, the unit will prompt for the next calibration signal:
Connect 100 VDC
NOTE
The accuracy of the 100V source is espe-
cially critical. It may be necessary to ad-
just the calibrator output slightly to
achieve exactly 100V.
20. Set the calibrator to 100V DC, then press the
ENTER key. The Model 2002 will advise you that the
current step is in progress:
Low-Level Cal - Step 9 of 13
21. After this step has been completed, the unit will display
the following:
Connect -20 VDC
NOTE
The accuracy of the -20V source is espe-
cially critical. It may be necessary to
adjust the calibrator output slightly to
achieve exactly -20V.
22. Set the calibrator for an output voltage of -20V DC, then
press ENTER. The Model 2002 will display the follow-
ing message:
Low-Level Cal - Step 10 of 13
23. The Model 2002 will then prompt for the next calibra-
tion signal:
Short Rear Inputs
24. Connect the Model 8610 to the rear INPUT jacks, mak-
ing sure that the terminals are in the correct position.
Select the rear inputs with the FRONT/REAR switch,
and allow at least three minutes for thermal equillib-
rium. Press ENTER to continue. The Model 2002 will
display the following:
Low-Level Cal - Step 11 of 13
25. After completing step 11, the unit will display the
following:
Connect 20mA @ 1kHz
26. Connect the calibrator to the AMPS and INPUT LO
jacks.(See Figure 2-3.) Press the FRONT/REAR switch
to select the front inputs.
27. Set the calibrator output to 20mA AC at a frequency of
1kHz, then press the ENTER key. The Model 2002 will
display the following while calibrating:
Low-Level Cal - Step 12 of 13
28. The unit will then prompt for the final calibration signal:
Connect 2 V at 1 Hz
29. Put the calibrator in standby, then disconnect it from the
Model 2002 INPUT and AMPS jacks; connect the syn-
thesizer to INPUT HI and LO, as shown in Figure 2-5.
Set synthesizer modes as follows:
FCTN: sine
FREQ: 1Hz
AMPTD: 2Vrms
MODE: CONT
OFFSET: 0V