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5. MAINTENANCE
Note:
1. Even if no indication, voltage may exist still. Do not use non-contact voltage
detector to judge whether there is voltage in the wire. Detection operation could
be affected by socket design, insulation thickness, type and other factors.
2. When inputting voltage on meter input terminal, due to existence of induced
voltage, voltage induction indicator also may light.
3. External sources of interference (such as flashlight, motor, etc.) may incorrectly
trigger non-contact voltage detection.
5.1 CALIBRATION
This meter should be recalibrated annually( within a temperature range
of 65°F to 83°F (18°C to 28°C) and relative humidity less than 75%) .
5.2 BATTERY REPLACEMENT
TO AVOID ELECTRIC SHOCK, MAKE SURE THAT THE TEST LEADS
HAVE BEEN CLEARLY MOVE AWAY FROM THE CIRCUIT UNDER
MEASUREMENT BEFORE OPENING THE BATTERY COVER.
1. When
2. Remove screw from battery cover.
3. Replace battery.
4. Replace battery cover and screw.
Note: Do not reverse battery polarity.
5.3 PROBE REPLACEMENT
Replace test leads if damaged or worn.
USE MEETS EN 61010-031 STANDARD, RATED CAT III 1000V, OR
BETTER TEST LEADS.
TO AVOID ELECTRIC SHOCK, MAKE SURE THE PROBES ARE DIS-
CONNECTED FROM THE MEASURED CIRCUIT BEFORE REMOVING
THE REAR COVER. MAKE SURE THE REAR COVER IS TIGHTLY
SCREWED BEFORE USING THE INSTRUMENT.
1.800.561.8187
AC750RevA_Manual_091216.indd 27
WARNING
appears, battery should be replaced immediately.
WARNING
WARNING
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information@itm.com
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2/14/2018 11:41:59 AM
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