Taking Measurements; A) Measuring Voltage ("V") - VOLTCRAFT VC-22 Operating Instructions Manual

9. Taking measurements

Never exceed the maximum permitted input values. Never touch circuits
or parts of circuits when they may contain voltages greater than 33 V/ACrms
75 V/DC! Fatal hazard!
Before measuring, check the connected test leads for damage, such as cuts,
tears and kinks. Defective test leads must no longer be used. Fatal hazard!
When taking measurements, do not touch any area beyond the grip markings
on the probe tips.
For safety reasons, remove all unnecessary test leads from the device before taking a measure-
ment.
If the measurement range is exceeded, an overflow is signalled in the display with "OL.". The
voltage range has an input resistance of >10 MOhm. In all measurement modes, the automatic
range selection (Auto-Range) is active. This function automatically sets the appropriate meas-
urement range.

a) Measuring voltage ("V")

Before each measurement, make sure that the device is not set to a different measurement
range.
Measuring DC voltages (V):
• Turn on the DMM using the rotary switch (4). Select the measurement range "V".
• Connect both of the test prods to the measured object (battery, circuit etc.).
• If necessary, press the Select button (3). The display shows DC.
Connect the red probe tip to the positive terminal and the black probe tip to the negative
terminal.
• The measured value and polarity are indicated on display.
• A minus "-" symbol before the measured value indicates that the measured voltage is nega-
tive (or the test leads have been reversed).
• After measuring, remove the test leads from the measured object and turn the multimeter off.
Turn the rotary switch to the "OFF" position.
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