Maintenance
Electric shock hazard:
• Do not attempt to repair this unit. It contains no user-
serviceable parts.
• Do not expose the unit to extremes in temperature or
high humidity. Refer to "Specifications."
Failure to observe these precautions may result in injury
and can damage the unit.
Battery Replacement
Electric shock hazard:
• Do not operate with the case or battery cover open.
• Before opening the case or battery cover, remove the
test leads from the circuit and shut off the unit.
Failure to observe these warnings could result in severe
injury or death.
1. Disconnect the unit from the circuit. Turn the unit OFF.
2. Remove the screw from the back cover.
3. Remove the back cover.
4. Replace the battery (observe polarity).
5. Replace the cover and screw.
Cleaning
Periodically wipe the case with a damp cloth and mild
detergent; do not use abrasives or solvents.
20