Keithley DMM6500, Руководство пользователя

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Section 2: Performance verification DMM6500 6½-Digit Multimeter with Scanning Calibration and Adjustment Manual
2-26 DMM6500-905-01 Rev. E June 2021
To verify 4-wire resistance accuracy:
1. Connect the DMM6500 INPUT and SENSE terminals to the calibrator as shown in the following
figure.
Figure 9: Connections for 4-wire resistance accuracy verification
2. Set the calibrator for 4-wire resistance with external sense on.
3. On the DMM6500, press the FUNCTION key and select 4W Res .
4. Press the MENU key.
5. Under Measure, select Settings .
6. Set Offset Compensation On .
7. Verify that Open Lead Detector is Off .
8. On the home screen, select the button next to Range and select
1 Ω
.
9. Source the nominal zero and full-scale resistance values for the 1
Ω to 10 kΩ ranges. Source the
nominal zero value for the 100
kΩ range. Refer to the tables in
Calculated limits (on page 2-27).
10.
For the 100 kΩ range, only verify 0 Ω with Offset Compensation set
to On .
11. Set Offset Compensation to Off .
12. Verify full-
scale 100 kΩ on the 100 kΩ range and 0 and full
-scale for the 1
MΩ and 10 MΩ ranges.
13. Verify that the readings are within calculated limits.
When Offset Compensation is set to On, ranges are limited to 1 Ω to 10 kΩ. When Offset
Compensation is set to Off, all ranges (1 Ω to 100 MΩ) are available from all interfaces.