Keithley 2000 Calibration Manual

Verifying resistance
Check resistance by connecting accurate resistance values from the calibrator to the Model
2000 and verifying that its resistance readings are within the specified limits.
Follow these steps to verify resistance accuracy:
1. Using shielded 4-wire connections, connect the Model 2000 INPUT and SENSE jacks
to the calibrator as shown in Figure 1-5.
2. Set the calibrator for 4-wire resistance with external sense on.
3. Select the Model 2000 4-wire resistance function by pressing the
Ω 4 key.
4. Set the Model 2000 for the 100
Ω range, and make sure the FILTER is on.
5. Recalculate the limits in Table 1-6 based on actual calibrator resistance values.
6. Source the nominal full-scale resistance values for 100
Ω -10M Ω ranges summarized in
Table 1-6, and verify that the readings are within stated limits.
7. Connect the Model 2000 INPUT and SENSE jacks to the calibrator as shown in Figure
1-6.
8. Disable external sense on the calibrator.
9. Set the Model 2000 to the 100M
Ω range.
10. Source a nominal 100M
Ω resistance value, and verify the reading is within the limits for
the 100M
Ω range listed in Table 1-6.
2000
MULTIMETER
!
R
Model 2000
5700A Calibrator
Output
HI
Input
LO
Output
LO
Note : Use shielded low-thermal cables to
minimize noise. Enable or disable
calibrator external sense as indicated
in procedure.
Sense HI
Sense LO
Sense HI
Sense LO
Input
HI
1-12 Performance Verification
Figure 1-5
Connections for
resistance verifi-
cation (100 Ω -
10M Ω ranges)

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