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18
Maintenance
Electric shock hazard:
Before opening the case, remove the test leads from the circuit and shut off the unit.
Failure to observe this warning could result in severe injury or death.
Electric shock hazard:
The fuses are an integral part of the overvoltage protection. When fuse replacement is necessary,
refer to “Specifications” for the correct type, size, and capacity. Using any other type of fuse will void
the overvoltage protection rating of the unit.
Failure to observe this warning could result in severe injury or death.
Replacing the Battery
1. Disconnect the unit from the circuit. Turn the unit OFF.
2. Remove the screws from the battery cover.
3. Remove the battery cover.
4. Replace the battery (observe polarity).
5. Replace the battery cover and screws.
Replacing the Fuses
1. Disconnect the unit from the circuit. Turn the unit OFF.
2. Remove the rubber boot.
3. Remove the screws from the battery cover.
4. Remove the battery cover.
5. Remove the screws from the back cover.
6. Remove the back cover.
7. Replace the fuse(s).
8. Replace the back cover and screws, battery cover and screws, and rubber boot.
Cleaning
Periodically wipe the case with a damp cloth and mild detergent; do not use abrasives or solvents.
Battery
Cover
Battery
Fuses
Back
Cover
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