Major tech MT 770 Manual de instruções - Página 13

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4.8. Non-Contact AC Voltage Measurements

WARNING: Risk of Electrocution. Before use, always test the Voltage

Detector on a known live circuit to verify proper operation

1. Touch the probe tip to the live conductor or insert into the live side of

the electrical outlet.

2. If AC voltage is present, the detector light will illuminate.

NOTE: The conductors in electrical cord sets are often twisted. For best

results, rub the probe tip along a length of the cord to assure placing

the tip in close proximity to the live conductor.

NOTE: The detector is designed with high sensitivity. Static electricity or

other sources of energy may randomly trip the sensor. This is normal

operation.

5. Button

5.1. MODE/INRUSH Button

To select ACV / Hz / %; OHM / Continuity / Diode / CAP; °C / °F.

5.2. RANGE Button

When the meter is first turned on, it automatically goes into Auto

Ranging. This automatically selects the best range for the

measurements being made and is generally the best mode for most

measurements. For measurement situations requiring that a range be

manually selected, perform the following:

1. Press the RANGE button. The "Auto Range" display indicator will turn

off, The "Manual Range" display indicator will turn on.

2. Press the RANGE button to step through the available ranges until you

select the range you want.

3. Press and hold the RANGE button for 2 seconds to exit the Manual

Ranging mode and return to Auto Ranging.

5.3. PEAK/VFD (Variable Frequency Drive) Button

In the AC voltage mode, Press the PEAK/VFD key to display "----" first

and then enter the PEAK measurement mode. The maximum PEAK and

minimum PEAK voltage can be measured circularly.

Hold down the button to enter the VFD function measurement. In the

VFD mode, the voltage value of the variable frequency drive device can

be measured. The measured values of "PEAK" and "VFD" are for

reference only.