8. Operating Instructions
General information
Always switch OFF the device when it is not in use.
Please refer to the sketches on the first pages of this manual.
To switch the unit on or off, press the main switch (6) for about 2 seconds.
Attention!
Avoid voltage measuring in electrical circuits while motors are switched on
or off. The stress-spikes can damage the instrument.
Hazardous voltage! The probes may not be long enough to touch the hot
parts in some 230V wall sockets as they are deep inside. As a result, the
reading can show 0 volts. Make sure that the probes touch the metallic
contacts in the socket before assuming that voltage has not been applied.
Devices like welding transformer, car ignition system, etc. could produce
stray electromagnetic fields which could adulterate the result of a
measurement.
Data hold
If the reading could not be read during measurement due to difficult operation
the „HOLD"-button (5.1) could be pressed to freeze the display reading.
1. Press the „HOLD"-button to freeze the display reading.
2. The display shows the "H"-symbol to indicate the activated HOLD function.
3. Press the „HOLD"-button again to return to standard operation.
Backlight
To turn the backlight on or off, press for two seconds the button (5.1).
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