If you have reason to assume that safe operation is no longer possible, disconnect the appliance imme-
diately and secure it against inadvertent operation. It can be assumed that safe operation is no longer
possible if:
- the device shows visible damage,
- the unit does not operate any longer and
- the unit was stored under unfavourable conditions for a long period of time or
- after it was exposed to extraordinary stress caused by transport.
Do not switch the meter on immediately after it has been taken from a cold to a warm environment. The
condensation that forms might destroy your device. Allow the device to reach room temperature before
switching it on.
Do not leave the packaging material lying around carelessly since such materials can become dange-
rous toys in the hands of children.
You should also heed the safety instructions in each chapter of these instructions.
Product Description
The multimeter (referred to as DMM in the following) indicates measured values on the digital display.
The measuring value display of the DMM comprises 6000 counts (count = smallest display value).
The meter can be used for do-it-yourself or for professional applications.
For better readability, the DMM can also be optimally mounted with the clip on the rear.
The battery and fuse compartment can only be opened when all measuring lines were removed from the
meter. When the battery and fuse compartment is opened, the measuring lines cannot be inserted into
the measuring jacks. This improves user safety.
In the voltage and current measurement area, a warning sound and a flashing "WARNING!" signal is
used to announce wrongly connected measuring lines. Connect the measuring lines correctly before
measuring.
Rotary switch (4)
The individual measuring functions are selected via a rotary switch. The automatic range selection "auto
range" is active. The appropriate range of measurement is set individually for each application. Always
start current measurements at the highest measurement range (10 A) and switch down to lower ranges
if necessary.
If the multimeter switch is set to "OFF", the
meter is switched off. Always turn the device
off when it is not in use.
The figure shows the alignment of the
measuringfunctions of VC830 and VC850.
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