Keithley 2750 Service Manual

2-18 Calibration Model 2750 Multimeter/Switch System Service Manual
AC voltage calibration
Follow these steps for AC voltage calibration:
1. Connect the calibrator to the Model 2750 INPUT HI and LO terminals as shown in
Figure 2-4.
2. Perform the calibration steps summarized in Table 2-11. For each step:
• Set the calibrator to the indicated voltage and frequency, and make sure the
unit is in operate. (You must use the stated voltage and frequency.)
• Send the indicated programming command.
• Wait until the Model 2750 completes each step before continuing.
Tab le 2- 11
AC voltage calibration programming steps
Calibration Step Calibrator Voltage, Frequency Calibration Command
10mV AC at 1kHz
100mV AC at 1kHz
100mV AC at 50kHz
1VAC at 1kHz
1VAC at 50kHz
10VAC at 1kHz
10VAC at 50kHz
100VAC at 1kHz
100VAC at 50kHz
700VAC at 1kHz
10.00000mV, 1kHz
100.0000mV, 1kHZ
100.0000mV, 50kHz
1.000000V, 1kHz
1.000000V, 50kHz
10.00000V, 1kHz
10.00000V, 50kHz
100.0000V, 1kHz
100.0000V, 50kHz
700.000V, 1kHz
:CAL:PROT:AC:STEP1
:CAL:PROT:AC:STEP2
:CAL:PROT:AC:STEP3
:CAL:PROT:AC:STEP4
:CAL:PROT:AC:STEP5
:CAL:PROT:AC:STEP6
:CAL:PROT:AC:STEP7
:CAL:PROT:AC:STEP8
:CAL:PROT:AC:STEP9
:CAL:PROT:AC:STEP10

Keithley 2750 Specifications

General

Interface	GPIB, RS-232, Ethernet
Switching Speed	Up to 500 channels/second
Maximum Voltage	300V
Operating Temperature	0°C to 50°C
Measurement Functions	DCV, ACV, DCI, ACI, 2-wire Resistance, 4-wire Resistance, Frequency, Temperature
Resolution	6.5 digits
Current	1A
Maximum Current	1A