44
Maintenance and Cleaning
General
To ensure the accuracy of the multimeter over an extended period of time, it should
be calibrated once a year.
Apart from occasional cleaning and fuse replacements, the multimeter requires no
servicing.
Information on changing the battery and fuse appears below.
Regularly check the technical safety of the instrument and mea-
suring lines, e.g. check for damage to the housing or squeezing
etc.
Cleaning
Always observe the following safety instructions before cleaning the device:
Live components may be exposed if covers are opened or parts
are removed (unless this can be done without tools).
The connected lines must be disconnected from the measuring
device and all measuring objects prior to cleaning or repairing
the device. Switch off the meter.
Do not use any carbon-containing cleaning agents or petrol, alcohol or the like to
clean the product. These could corrode the surface of the measuring instrument.
The fumes are furthermore a health hazard and are explosive. Moreover, you
should not use sharp-edged tools, screwdrivers or metal brushes or similar for
cleaning.
To clean the device or the display and the measuring leads, use a clean, lint-free,
antistatic slightly damp cloth.
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