Fluke C9970 User Manual page 13

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With the trigger pressed, use the free hand to touch both the probe tip
4
and the check contact (shown in Figure 3). The red LED should flash and
the green LED should go out. If they do not, the Voltage Detector is
malfunctioning.
It may be necessary to wet the fingers that are touching the probe
tip and check contact in order to start the red flashing LED. This is
acceptable and does not indicate a malfunctioning Voltage Detector.
Once the red LED starts flashing, remove the free hand while continuing
5
to press the trigger. The red LED should continue to flash as long as the
trigger is pressed. If it does not, the Voltage Detector is malfunctioning.
After passing the self check, the Voltage Detector may be used to perform a
voltage test. If it fails, contact Fluke Networks as described on page 1.
Note
Figure 3. Performing a Self Check
Periodic Performance Tests
EMU03.EPS
9

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