Operation; Powering The Meter; Disable Auto Power Off; Display Backlight - Extech Instruments EX360 User Manual

4. Operation
CAUTION: Read and understand all of the Safety statements listed in the safety section
of this manual prior to use.
Powering the Meter
1. Turn the rotary function switch to any position to power the meter. Check the batteries if the
unit fails to power ON. Refer to the Maintenance section for battery and fuse replacements.
2. Turn the function switch to the OFF position to power OFF the meter.
3. The meter has an Auto Power OFF feature (APO) where the meter switches OFF after 20
minutes of inactivity. When APO is enabled, the APO icon will show on the display when the
meter is powered ON. To disable APO, refer to the next section.
Note: The meter displays the battery capacity when powering up. The display will either show the
word FULL (battery fully charged) or a percentage representing remaining battery power. The
international segmented battery strength symbol
the meter is ON and when there is sufficient battery power to power the meter.
Disable Auto Power OFF
The meter will auto power OFF after 20 minutes of inactivity. To defeat this feature, follow the
steps below.
1. With the meter OFF, press and hold the M (MODE) button and, while continuing to hold, turn
the rotary function switch to any position to power ON the meter.
2. The display will show AOFF.
3. Release the button.
4. APO will now be disabled until the next cycle of power.
Display Backlight
With the meter powered ON, press the backlight button
that excessive use of the backlight will shorten the battery life.
Smart Data Hold
To freeze the LCD meter reading, press the H (HOLD) button. While data hold is active, the HOLD
display icon appears on the LCD. Press the H button to return to normal operation. The HOLD icon
will switch OFF.
The meter's beeper will sound and the LCD will flash if the detected signal is 50 counts greater than
the held reading.
Test Lead Considerations
Test lead probe covers can be removed for CAT II 1000V installations. Use the test lead probe
covers for CAT III 1000V or CAT IV 600V installations. Do not measure voltages > 1000V AC or DC.
Remove the storage caps from the meter end of test leads before connecting leads to the meter.
is also shown on the display at all times when
to switch the backlight ON or OFF. Note
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