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Display illumination
The display can be lit if you are working in a badly lit environment. Press and hold the “
” (11) button for
approx. two seconds. The light is on for about 15 seconds and automatically switches itself off after that.
If you want to switch off illumination earlier, press the button (11) again for approx. 2 seconds. The light
goes out.
Cleaning and Maintenance
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.
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 mea-
suring objects prior to cleaning or repairing the device. Switch the DMM off.
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, antistatic, slight-
ly damp cloth. Allow the product to dry completely before you use it again to conduct measurements.
