Taking Measurements; A) Switching On The Multimeter; B) Alternating Voltages (V/Ac) - VOLTCRAFT VC-740E AC Bedienungsanleitung

9. Taking measurements

Never exceed the maximum permitted input values. Never touch circuits or circuit components if
they may carry voltages greater than 33 V/ACrms or 70 V/DC. This may cause a fatal electric shock!
Before measuring, check the connected test leads for damage, such as cuts, tears and kinks. Never
use damaged test leads, as this may cause a fatal electric shock!
When taking measurements, do not touch any exposed areas beyond the grip markings on the test
probes and the multimeter.
Only connect the test leads that you require. For safety reasons, remove all unnecessary test leads
from the device before taking a measurement.
Measurements in circuits rated at >33 V/AC and >70 V/DC must only be made by qualified and
trained personnel who are familiar with the relevant regulations and the associated hazards.
"OL" (overload) indicates that the measuring range has been exceeded.
a) Switching on/off the multimeter
Turn the control knob (16) to the desired measuring mode. To turn the multimeter off, move the control knob (16) to
the "OFF" position. Always turn the multimeter off when it is not in use.
When you turn the multimeter on, a short function test will be conducted and all symbols will appear on the display.
The multimeter will beep when the test is complete.
Insert the batteries before using the multimeter. For more information on inserting/replacing the batteries,
see "Cleaning and Maintenance".

b) Alternating voltages (V/AC)

Measuring AC voltages (V
- Turn the multimeter on and select "V
display.
- Insert the red test lead into the
COM socket (10).
- Connect the two measuring probes in parallel to the object that you want to measu-
re (e.g. generator or circuit).
- The measured voltage will appear on the display.
- After measuring, remove the measuring leads from the measured object and turn
the multimeter off.
T he "V/AC" voltage range has an input resistance of ≥10 MΩ, meaning
there is almost no impact on circuit performance.
44
):
" mode. "AC" and "V" will appear on the
socket (11) and the black test lead into the