Maintenance; Cleaning; Calibration Interval; Battery Replacement - BEHA Unitest CHB140 Mode D'emploi

Maintenance

As long as the instructions in the operating manual are adhered to,
no special maintenance is required.

Cleaning

Disconnect the instrument from all circuits. Humidify the cloth
slightly with household cleaner and wipe the instrument surface by
applying light pressure. Allow a recovery time after cleaning before
operating the instrument.

Calibration Interval

Measurement instruments must be calibrated at regular intervals to
ensure the accuracy and reliability of test results. A calibration inter-
val of one year is recommended for clamp meters.

Battery Replacement

If the battery symbol appears in display (3), the battery has to be re-
placed. Please proceed as follows:
Disconnect the instrument from the measurement circuit.
Switch off the instrument.
Loosen both screws in the casing rear.
Carefully open the casing.
Replace the old battery with the new one by respecting the
correct polarity! For the battery type, please refer to the tech-
nical data section.
Carefully close the casing.
Insert the screws and ensure they are tightened
If the instrument is likely to remain unused for a long period of
time the batteries must be removed. If a battery should leak in-
side the housing, return the instrument to our service depart-
ment for cleaning and checking.
Please think of our environment when getting rid of used
batteries. They should be disposed of in a place suitable
for hazardous waste.
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