GRT300-EU-EN v1.1 08/13
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Maintenance
1. Rear
cover
2. Battery
3. Fuse
Fuse Replacement
1.
Disconnect the test leads from the instrument.
2.
Remove the rear cover by removing two screws.
3.
Remove and replace the fuse with the new one of the same value and size 0.1A/250V, 5 x
20mm.
4.
Replace and secure the rear cover.
Battery replacement
When "Battery Low" appears on the display, replace the batteries.
1.
Disconnect the test leads from the instrument and remove the rear cover and the batteries.
2.
The tester's battery is situated under the tester.
3.
Replace with eight 1.5V AA light batteries, taking care to observe correct polarity.
4.
Reinstall battery holder and the battery cover.
Cleaning And Storage
WARNING: To avoid electrical shock or damage to the meter, do not get water inside the case.
Periodically wipe the case with a damp cloth and detergent, do not use abrasives or solvents.
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