Voltage Measuring "V~ And V - VOLTCRAFT VC185 TRMS Notice D'emploi

a) Voltage measuring "V~ and V
Before measuring voltages, always make sure that the measuring instrument is not set to
a measuring range for current.
Proceed as follows to measure AC voltages (V~):
• Turn the digital multimeter on and select the measuring range "V ~"
with the rotary switch (5). "AC" is displayed in the LC display (4).
• Auto-mode is selected by default. In auto-mode the digital multimeter
determines the voltage measuring range automatically. To switch
off auto-mode and select the measuring range manually, press the
SELECT button (1) once. The "Auto" symbol disappears from the LC
display (4).
• Press the SELECT button (1) repeatedly to choose the measuring
range. The decimal point of the display shifts position between the
digits indicating the currently set measuring range and the units mV or
V are shown respectively. Choose the appropriate measuring range for
your measuring task. Observe that the maximum input values (also see
chapter 14. Technical Data) must not be exceeded during measuring.
• To re-engage the auto-mode, press and hold the SELECT button (1)
for about 2 seconds. The "Auto" symbol appears on the LC display (4).
The auto-mode is activated.
• Insert the red measuring lead into the V socket (8) and the black
measuring lead into the COM socket (9).
• Now connect the two measuring prods to the object to be measured
(socket, relay, switch etc.) in parallel.
• The red measuring tip indicates the positive pole, the black measuring
tip the negative pole.
• The reading is indicated on the LC -display. The unit of the present
measurement is shown in V or mV. Readings are true mean square
values.
• Press the HOLD button (12) in order to lock the measured value if
needed. The hold symbol
HOLD button (12) in order to release the locked value. The hold symbol
disappears from the LC-display (4).
• After measuring, remove the measuring leads from the measuring object and turn the digital multimeter off. Turn
the rotary switch to the position "OFF".
Before measuring voltages, always make sure that the measuring instrument is not set to a
measuring range for current.
"
appears in the LC-display (4). Press the
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