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Maintenance
Clean
If there’s dust on the terminal or the terminal is wet, it may
cause measurement error. Please clean the instrument
according to the steps below:
1) Switch off the power supply of the instrument, and remove
the test probe.
2) Turn over the instrument and shake out the dust
accumulated in the input terminal. Wipe the outer cabinet
with a damp cloth and mild detergent, do not use abrasive
or solvent. Wipe contacts in each input terminal with a
clean cotton swab soaked in alcohol.
3)
WARNING
Please always keep the inside of the instrument clean and dry to avoid
electric shock or instrument damage.
Replace Battery and Fuse
Replace Battery
：
1) Turn off the power supply of the instrument, and remove
the probe on the instrument.
2) Use screwdriver to unscrew screws fixing the battery cover,
remove the battery cover.
3) Remove old batteries, replace with new batteries of the
same specifications. Please note the polarity of the
battery according to the positive and negative polarity
marks inside of the battery cover.
4) Install the battery cover to its original position, fix and lock
