Fluke 381 Fluke 381 Users Manual - Page 32

Frequency Measurement (Jaw and Flexible Current Probe), Maintenance - case

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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. 28

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381
Users Manual
28
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.