Measuring Ac Voltage; Auto Power Off - Voltmaster MCM 1 Manual Del Usuario

Measuring AC voltage

The maximum input voltage in the ACV range is 600 V DC. To prevent danger from electric
shocks and/or damage to the instrument, do not take measurements of voltages over 600 V.
Insert the black and red test leads into the COM and INPUT inputs.
Apply the test leads to the circuit to be measured and read off the value.
Pressing the SEL / NCV button permits frequency read-off.
Resistance / continuity measurement
Before carrying out each resistance measurement, make sure that the circuit to be measured is
voltage free and that all condensers have been discharged.
Insert the black and red test leads into the COM and INPUT inputs.
Apply the test leads to the circuit to be measured and read the value.
Please note: The continuity test is used to locate short circuits / open circuits.
Non-contact voltage detector measurement
Press and hold the SEL / NCV button
Place the front end of the tong head in proximity to the object to be tested.
If the object has AC voltage (> 90 V) the buzzer will sound and the alarm NCV display will flash.

Auto Power OFF

Automatic deactivation is set on the measuring instrument as standard.
To deactivate the APO function, press the SEL / NCV button when activating the instrument.
The APO symbol will disappear in the display.
Should the measuring instrument not be operated after c. 8 minutes, the buzzer will sound once.
The buzzer will sound again after 30 seconds and will switch off automatically after a further
30 seconds.
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