Fluke 725Ex - Lower Display Frequency Measurement Test

725Ex
Calibration Manual
18
Lower Display Frequency Measurement Test
1. Set the 5520A to source a 40 Hz, 1 V peak-to-peak square wave (use the blue softkey
under the wave type to change the wave shape).
2. Press F on the UUT until MEASURE and Hz appear on the lower display.
3. Make the connections shown in Figure 6.
4. Verify that the UUT frequency reads between 39.8 Hz and 40.2 Hz.
5. Press F on the UUT to change the lower display to kHz.
6. Set the 5520A to source a 10 kHz, 1 V peak-to-peak square wave.
7. Verify that the UUT frequency reads between 9.98 kHz and 10.02 kHz.
8. Press STBY on the 5520A.
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Figure 6. Lower Display Frequency Test Connections