Earth Voltage Test; Earth Resistance Test; Hold Function; Backlight - Extech Instruments 382252 Manual

Earth Voltage Test

1. Set the function on the selector's switch to the EARTH VOLATAGE position.
2. Confirm that the voltage measurement is less than 10V AC; otherwise accurate Earth
resistance measurements cannot be made. If voltage is present (higher than 10V AC),
the source of the voltage must be found and corrected before testing can continue.
3. Press to TEST key to end the test. Note the LCD reading.

Earth Resistance Test

1. Set the meter's function switch to the desired resistance range.
2. Press the TEST button. . The "
3. Note the displayed reading.
4. If high resistance is detected, note the value and take appropriate steps to correct the
ground connection if necessary.
5. Press to TEST key to end the test.
6. Readings of "1"...Ω are typical when the test leads are not connected to the meter.

HOLD Function

The Hold function freezes the latest measurement reading on the LCD.
1. Press the HOLD key to freeze the reading on the LCD
2. Press the HOLD key again to exit the HOLD function.
3. The HOLD function does not retain measurement data if the meter is turned off.

Backlight

1. Press the " " key to turn on the backlight.
2. The backlight will turn off after approximately 15 seconds.
200kΩ Resistance Measurement
1. Connect the red test lead to the VΩ connector and the black test lead to the COM
connector.
2. Set the function selector switch to the 200kΩ position.
3. Connect the test probes to the circuit or component under test.
4. Note the displayed Resistance value.

AC Voltage Measurement

1. Connect the red test lead to the VΩ connector and the black test lead to the COM
connector.
2. Set the function selector switch to the 750V AC position.
3. Connect the test probes to the circuit under test.
4. Note the displayed Voltage value.

DC Voltage Measurement

1. Connect the red test lead to the VΩ connector and the black test lead to the COM
connector.
2. Set the function selector switch to the 1000V DC position.
3. Connect the test probes to the circuit under test.
4. Note the displayed Voltage value.
" icon will flash and the audible signal will sound.
Model 382252
5
Ver. 1.1 08/09