Maintenance; Cleaning And Storage; Battery Replacement; Battery Safety - Extech Instruments EX820A User Manual

6

Maintenance

To avoid electrical shock, disconnect the meter from the circuit under test, remove the test
leads from the input terminals, and turn the function switch to the OFF position, before
opening the case. Do not operate the meter with an open case.

6.1 Cleaning and Storage

Periodically wipe the case with a damp cloth and mild detergent; do not use
abrasives or solvents. If the meter is not to be used for 60 days or more, re-
move the battery and store it separately.

6.2 Battery Replacement

1. Remove the Phillips head screw that secures the rear battery door.
2. Replace the 9 V battery.
3. Secure the battery compartment before use.

6.2.1 Battery Safety

• Please dispose of batteries responsibly; observe local, state, and national
regulations.
• Never dispose of batteries in a fire; batteries may explode or leak.
#NAS100175; r. AA/97099/97616; en-US
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