Keithley 2000 Calibration Manual

DC current calibration
After the 1MΩ 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:
• Set the calibrator to the indicated current, and make sure the unit is in operate. (Use
the recommended current if possible.)
• Send the indicated programming command. (Change the current parameter if you are
using a different calibration current.)
• Wait until the Model 2000 completes each step before continuing.
NOTE If you are performing DC-only calibration, proceed to the “Programming calibration
dates” paragraph.
Table 2-10
DC current calibration programming steps
Calibration
step
Calibrator
current
Calibration command*
Parameter
range
10mA
100mA
1A
10.00000mA
100.00000mA
1.000000A
:CAL:PROT:DC:STEP10 10E-3
:CAL:PROT:DC:STEP11 100E-3
:CAL:PROT:DC:STEP12 1
9E-3 to 11E-3
90E-3 to 110E-3
0.9 to 1.1
* Change parameter if using a different current.
Calibration 2-17

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