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To measure, proceed as follows:
- Select the measuring range “Hz” or “kHz” on the rotary switch.
- Connect the black measuring line with the COM socket (6) and
the red measuring line with the Hz socket (7).
- Now perform null balancing.
- Connect the two measuring prods to the test object (generator,
switch etc.).
- Read off the measured value on the “kHz” scale. The unit corre-
sponds to the set measuring range (Hz or kHz).
- After measuring, put the rotary switch in the “OFF” position to turn off the multimeter.
Cleaning and Maintenance
General
To ensure the accuracy of the multimeter over an extended period of time, it should be calibrated once
a year.
See the next chapter for information on battery and fuse replacement.
ƽ
Regularly check the technical safety of the instrument and measuring lines, e.g. for
damage to the housing or squeezed parts etc.
Never operate the measuring device when it is open.
!DANGER TO LIFE!
Cleaning
Always observe the following safety instructions before cleaning the device:
ƽ
Live components may be exposed if covers are opened or parts are removed (unless
these parts are intended to be removed without tools).
Before cleaning or repairing the multimeter, any lines have to be disconnected and
the device has to be turned off.
Do not use agents containing carbon, benzine, alcohol or similar substances to clean the device. The
surface of the multimeter will be corroded. In addition, the vapours are detrimental to health and explo-
sive. Sharp-edged tools, screwdrivers or metal brushes should not be used for cleaning purposes.
To clean the device, the display or the measuring lines, use a clean, lint-free, antistatic and dry cleaning
cloth.
