Ac Current Calibration; Distortion Calibration; Ac Current Calibration Programming Steps; Distortion And Function Generator Calibration Steps - Keithley 2015 Service Manual

2-22 Calibration

AC current calibration

Follow these steps for AC current calibration:
1.
2.
Table 2-13

AC current calibration programming steps

Calibration step
100mA at 1kHz
1A at 1kHz
2A at 1kHz

Distortion calibration

1.
2.
3.
4.
5.
Table 2-14

Distortion and function generator calibration steps

Calibration step
Distortion, 1V at 137Hz
Distortion, 1V at 844Hz
Function generator
Connect the calibrator to the AMPS and INPUT LO terminals of the Model 2015 as
shown in Figure 2-3.
Perform the calibration steps summarized in Table 2-13. For each step:
• Set the calibrator to the indicated current and frequency, and make sure the unit is
in operate. (You must use the stated current and frequency.)
• Send the indicated programming command.
• Wait until the Model 2015 completes each step before continuing.
Calibrator current, frequency
100.0000mA, 1kHz
1.000000A, 1kHz
2.000000A, 1kHz
Connect the low-distortion function generator to the front panel INPUT jacks (see Figure
2-5).
Set the function generator to output a 1V RMS sine wave at a frequency of 137Hz.
Send the following command to perform the 137Hz calibration step (see also Table
2-14):
:CAL:PROT:DIST:STEP1
Set the function generator to output a 1V RMS sine wave at a frequency of 844Hz.
Send the following command to perform the 844Hz calibration step:
:CAL:PROT:DIST:STEP2
Calibration signal or connections Calibration command
1V RMS, 137Hz sine wave
1V RMS, 844Hz sine wave
SOURCE OUTPUT to INPUT
Calibration command
:CAL:PROT:AC:STEP11
:CAL:PROT:AC:STEP12
:CAL:PROT:AC:STEP13
:CAL:PROT:DIST:STEP1
:CAL:PROT:DIST:STEP2
:CAL:PROT:FGEN:STEP1