FLUKE 381-NIST User Manual for the Fluke 381-NIST Remote Display True RMS AC/DC Clamp Meter with iFlex,

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Remote Display True-rms Clamp Meter

Measurements

Note

When the measured current is < 0.5 A, the center dot in the display icon (X) will flash

on and off. With current > 0.5 A, the center dot will be steady.

5. Observe the current value on the Meter display.

If the Flexible Current Probe does not perform as expected:

1. Inspect the coupling system to make sure that it is connected and closed correctly or for any

damage. If any foreign material is present, the coupling system will not close properly.

2. Inspect the cable between the Flexible Current Probe and the Meter for any damage.

3. Check that the Rotary Function Switch of the Meter is in the correct position (

D).

AC and DC Voltage

To measure ac or dc voltage:

1. Turn the Rotary Function Switch to the proper voltage function (V or L).

2. Connect the black test lead to the COM terminal and the red test lead to the G

terminal. See Figure 6.

3. Measure the voltage by touching the probes to the desired test points of the circuit. View the

reading on the display.

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FLUKE 381-NIST Remote Display True RMS AC/DC Clamp Meter with iFlex, includes Traceable Certificate