Maintenance; Cleaning And Storage; Battery Replacement; Battery Safety - Extech Instruments EX623A 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.

6.3 Fuse Replacement

1. Remove the Phillips head screw that secures the rear battery door.
2. Remove the battery.
3. Remove the two (2) Phillips head screws that secure the fuse
compartment.
4. Replace the fuse with one of equal rating: 200 mA, 600 V ceramic fast
blow, 5 x 20 mm (ASTM HV510 H).
5. Secure the fuse compartment door, install the battery, and secure the bat-
tery compartment.
#NAS100174; r. AA/97578/97616; en-US
CAUTION
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