High Resistance Source (Hvr) Verification - Fluke 5080A Service Manual

High Resistance Source (HVR) Verification

To verify the High Resistance Source function:
1. Connect the high resistance source output to the input terminals of a
standard multimeter in 2-wire configuration as shown in Figure 8.
Fluke 8508A
Figure 8. High Resistance Source Calibration Connections
2. If not already on, push  on the Product.
3. Push the softkey labeled MODE until hvr shows above the right-most Product
softkey.
4. Set the multimeter for 2-wire ohms measurement and auto range.
5. Measure the High Resistance calibration performance at each resistance
point shown in Table 16. Deviations should not be greater than the specified
limits.
Range
10.000 kΩ
11.550 kΩ
21.000 kΩ
42.000 kΩ
80.850 kΩ
100.00 kΩ
150.20 kΩ
288.20 kΩ
500.00 kΩ
535.50 kΩ
1.0000 MΩ
1.0290 MΩ
1.9200 MΩ
3.6600 MΩ
Table 16. Megohm Option HVR Verification Points
10.000 kΩ
11.550 kΩ
21.000 kΩ
42.000 kΩ
80.850 kΩ
100.00 kΩ
150.20 kΩ
288.20 kΩ
500.00 kΩ
535.50 kΩ
1.0000 MΩ
1.0290 MΩ
1.9200 MΩ
3.6600 MΩ
Output
Calibrator
Performance Tests
Fluke 5080A
gru002.eps
Tolerance
±0.0200 kΩ
±0.0231 kΩ
±0.042 kΩ
±0.0840 kΩ
±0.1617 kΩ
±0.0200 kΩ
±0.0300 kΩ
±0.576 kΩ
±1.000 kΩ
±1.071 kΩ
±0.00300 MΩ
±0.00309 MΩ
±0.00576 MΩ
±0.01098 MΩ
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