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e) Display lighting
With the DMM switched on, the lighting button (13) can be used to switch the display lighting
on and off. Every push will switch the lighting on or off. Pushing a button is confirmed with a
signal sound.
Lighting turns of automatically after approx. 30 seconds. Lighting can be switched off prematurely
by pushing the lighting button (13) or switching off the meter via the dial switch (position “OFF”).
10. CLEaNINg aND maINTENaNCE
a) general information
To ensure accuracy of the multimeter over an extended period of time, it should be calibrated
once a year.
Apart from occasional cleaning and battery replacements, the meter requires no servicing.
Notes on replacing the battery are provided below.
regularly check the technical safety of the device and measuring lines, e.g.
check for damage to the casing or squeezing, etc.
b) Cleaning
Always observe the following safety information 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 meter and all measuring
objects before the device is cleaned or repaired. Switch off the Dmm.
Do not use any abrasive cleaning agents or petrol, alcohol or the like to clean the product.
They will damage the surface of the measuring device. Furthermore, the fumes are hazardous
to your health and explosive. Also do not use any sharp-edged tools, screwdrivers, metal
brushes, etc. for cleaning.
Use a clean, lint-free, antistatic, slightly damp cloth for cleaning the device or the display and
the measuring lines. Allow the product to dry completely before you use it again to conduct
measurements.
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