10. Cleaning and Maintenance
a) General Information
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 meter requires no servicing.
Information on changing the battery and fuse is provided below.
Regularly check the technical safety of the instrument and measuring leads, e.g.
check for damage to the housing or squashing etc.
b) 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 measur-
ing objects prior to cleaning or repairing the device. Switch off the DMM.
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 meter. Furthermore, the fumes are hazardous
to your health and explosive. Moreover, you should not use sharp-edged tools, screwdrivers or
metal brushes or similar for cleaning.
When cleaning the device or the display and the measuring lines, use a clean, lint-free, anti-
static, slightly damp cloth. Allow the product to dry completely before you use it again to conduct
measurements.
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