MA150 Ver. 2.0 08/07

4

Non-Contact AC Voltage Detection

1) AC Voltage detection operates on any of the three Function switch positions.

2) Touch the probe tip to the hot conductor or insert into the hot side of the electrical

outlet.

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

NOTE

: The conductors in electrical cord sets are often twisted. For best results, slowly

slide 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 turn the detector light on. This is normal operation

MAX Hold

To hold the highest reading on the LCD, momentarily press the “MAX ” key. The meter

reading will not change as readings change, rather it will only display the highest reading

encountered since the MAX hold button was pressed. Press the MAX hold button again to

return the meter to normal operation.

Backlight

Press and hold the “MAX ” key for more than one second to turn the backlight on. This will

also activate the MAX Hold function. To release the MAX Hold function and return the meter

to normal operation, press the “MAX ” key momentarily. The backlight will automatically turn

off after 15 seconds. To manually turn off the backlight, press and hold the “MAX ” key for

more than 1 second.

Flashlight

Press and hold the top button to turn the flashlight on. Release the button to turn the

flashlight off.

WARNING:

Risk of Electrocution. Before use, always test the Voltage Detector on a

known live circuit to verify proper operation