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

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381

Users Manual

Frequency Measurement (Jaw and Flexible Current Probe)

To measure frequency:

1. Turn the Meter Rotary Function Switch to A or D if the Flexible Current Probe is being

used for the measurement.

2. Center the Jaw or Flexible Current Probe around the measurement source.

3. Push Z on the Meter to shift to Hz. The frequency is displayed on the Meter display.

Maintenance

XW Warning

To avoid possible electric shock or personal injury, repairs or servicing not

covered in this manual should be performed only by qualified personnel.

Cleaning the Meter and Flexible Current Probe

XW Warning

To avoid electrical shock, remove any input signals before cleaning.

W Caution

To avoid damaging the Meter, do not use aromatic hydrocarbons or chlorinated

solvents for cleaning. These solutions will react with the plastics used in the

Meter. Do not immerse the Meter in water.

Clean the instrument case with a damp cloth and mild detergent.

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