Fluke 19xB-19xC-2x5C
Service Manual
4-28
4.8 Meter (DMM) Tests
4.8.1 Meter DC Voltage Accuracy Test
WARNING
Dangerous voltages will be present on the calibration source
and connecting cables during the following steps. Ensure that
the calibrator is in standby mode before making any connection
between the calibrator and the test tool.
Proceed as follows to test the meter dc voltage measurement accuracy:
1. Connect the test tool to the 5500A as for the previous test (see Figure 4-18).
2. Select the following test tool setup:
• Press
(this key will toggle the menu bar on and off if the test tool is
already in the meter mode)
• Press
to open the Measurement menu, and select V dc
• Press
to select MANUAL ranging; use to select the ranges.
3. Set the range to the first test point in Table 4-12.
4. Set the 5500A to source the appropriate dc voltage.
5. Observe the reading and check to see if it is within the range shown under the
appropriate column.
6. Continue through the test points.
7. When you are finished, set the 5500A to 0 (zero) Volt, and to Standby.
Table 4-12. Meter Volts dc Measurement Verification Points
Range 5500A output V dc Meter Reading
500.0 mV + 500 mV 497.0 to 503.0
- 500 mV -497.0 to -503.0
0 mV -0.5 to +0.5
5.000 V + 5.000 V 4.970 to 5.030
- 5.000 V -4.970 to -5.030
50.00 V + 50.00 V 49.70 to 50.30
- 50.00 V -49.70 to -50.30
500.0 V + 500.0 V 497.0 to 503.0
- 500.0 V -497.0 to -503.0
1100 V + 1000 V 0.990 to 1.010
- 1000 V -0.990 to -1.010
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