Replacing The Safety Fuse; Cleaning; Storage - AEMC 4620 User Manual

6.3.4

Replacing the Safety Fuse

To check the fuse continuity, short circuit the X and Z terminals and make
a measurement. If the FAULT indicator light flashes, it means that the fuse
is blown.
To replace the fuse:
NOTE: Do not replace the fuse when the instrument is connected.
• The fuse is located on the front of the faceplate.
• Using a screwdriver, turn the screw a quarter of a turn.
• Take out the support containing the fuse.
• Replace the fuse (0.1A, >250V, 0.25 x 1.25").
• Replace the support and screw it back in.
6.4

Cleaning

NOTE: Disconnect the instrument from any source of electricity.
• Use a soft cloth lightly dampened with soapy water.
• Rinse with a damp cloth and then dry with a dry cloth.
• Do not use alcohol, solvents or hydrocarbons.
6.5

Storage

If the Model 4620 is not used for a long period of time (two months or
more), remove the batteries and store them separately.
If the Model 4630 is not used for a long period of time (two months or
more), it is recommended to charge the battery for a few hours.
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Digital Ground Resistance Tester Model 4620 and 4630