Battery Replacement - Extech Instruments EX520A User Manual

6
Maintenance

6.2 Battery Replacement

To avoid electric shock, disconnect the test leads from any source of voltage before open-
ing the meter.
Remove the test leads from the meter before replacing the battery or fuses.
Expired or damaged batteries can cause cauterization on contact with the skin. Always
use suitable hand protection when handling such batteries.
Never operate the meter unless the back cover and the battery and fuse covers are in
place and fastened securely.
Do not short circuit the battery and do not dispose of the battery in a fire.
Remove the batteries when storing the meter for > 60 days.
1. Disconnect the test leads from the meter.
2. Remove the battery door by loosening the two Phillips head screws. The
two battery compartment screws are black in colour, as shown in Section
3, Product Description. One is visible at the centre of the meter back, the
other is accessible after lifting the tilt stand.
3. Replace the battery, observing correct polarity.
4. Secure the battery compartment before using the meter.
#NAS100179; r. AA/97576/97580; en-US
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