Keithley 2000 Calibration Manual

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 calibration steps summarized in Table 2-9. For each step:
• Set the calibrator to the indicated resistance, and make sure the unit is in operate. (Use
the recommended resistance or the closest available value.)
• Send the indicated programming command. (Change the command parameter if you
are using a different calibration resistance than that shown.)
• Wait until the Model 2000 completes each step before continuing.
Table 2-8
DC voltage calibration programming steps
Calibration
step
Calibrator
voltage
Calibration command*
Parameter
range
+10V
-10V
100V
+10.00000V
-10.00000V
100.0000V
:CAL:PROT:DC:STEP3 10
:CAL:PROT:DC:STEP4 -10
:CAL:PROT:DC:STEP5 100
9 to 11
-9 to -11
90 to 110
* Change parameter accordingly if using a different calibrator voltage.
Table 2-9
Resistance calibration programming steps
Calibration
step
Calibrator
resistance
Calibration command*
Parameter
range
1kΩ
10kΩ
100kΩ
1MΩ
1kΩ
10kΩ
100kΩ
1MΩ
:CAL:PROT:DC:STEP6 1E3
:CAL:PROT:DC:STEP7 10E3
:CAL:PROT:DC:STEP8 100E3
:CAL:PROT:DC:STEP9 1E6
900 to 1.1E3
9E3 to 11E3
90E3 to 110E3
900E3 to 1.1E6
* Use exact calibrator resistance value for parameter.
2-16 Calibration

Keithley 2000 Specifications

General

Digits	6.5
DC Voltage Range	100 mV to 1000 V
AC Voltage Range	100 mV to 750 V
Resistance Range	100 Ω to 100 MΩ
Connectivity	IEEE-488 (GPIB)
Display Type	VFD