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The display shows “AoFF”. Release the buttons for switching on. The meter is now
set for continuous measurement and will no longer switch off on its own.
Switch off the meter manually again after measuring.
The meter remains on until the batteries are flat.
Observe the operating duration of max. 20 hrs. with new batteries for
continuous measurement.
11. CLEANING AND MAINTENANCE
a) General
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, e.g. for
damaged casing or crushing, etc.
Also ensure that the contact points of the current probe are clean
and that it can be closed cleanly.
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 meter must be disconnected from all objects to be measured
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 and slightly moist cleaning cloth to clean the device
or the display. Allow the product to dry completely before you use it again to con-
duct measurements.
