Fluke ScopeMeter 19 B Series, Service Manual

Page: 53 / 86

Performance Verification
4.8 Meter (DMM) Tests
4
4-29
4.8.2 Meter AC Voltage Accuracy & Frequency Response 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 ac 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
•
Press to open the Measurement menu, and select
V ac
•
Press to select MANUAL ranging; use to select the ranges
3. Set the range to the first test point in Table 4-13.
4. Set the 5500A to source the appropriate ac 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 4-13. Meter Volts AC Measurement Verification Points
Range 5500A output V ac Frequency Meter Reading
500.0 mV 500.0 mV 60 Hz 494.0 to 506.0
1 kHz 486.0 to 514.0
10 kHz >350.0
5.000 V 5.000 V 60 Hz 4.940 to 5.060
1 kHz 4.860 to 5.140
10 kHz >3.500
50.00 V 50.00 V 60 Hz 49.40 to 50.60
1 kHz 48.60 to 51.40
10 kHz >35.00
500.0 V 500.0 V 60 Hz 494.0 to 506.0
1 kHz 486.0 to 514.0
10 kHz >350.0
1100 V (1.1 kV) 1000 V 60 Hz 0.980 to 1.020
1 kHz 0.960 to 1.040
10 kHz > 0.700