10
Install/Replace Clock Battery Backup
The TM80 uses 2 “AA” batteries as a backup battery system to provide
continuous alarm operation and clock settings in the event of a power
failure. If the Backup Batteries have been installed and a power failure
occurs or the AC adaptor is accidentally disconnected, the display backlight
will not remain lit, but the current time and alarm time settings will be
temporarily maintained. Otherwise, you must reset the time and alarm
settings.
If the unit has no display or the Backup Battery Low Icon located on the left
of the display isflashing, it is time to replace the backup batteries.
1. Please make sure the AC adaptor is connected. Otherwise all settings
may be lost during battery replacement.
2. Open backup battery compartment cover located on the bottom of the
unit.
3. Insert two “AA” batteries, checking that the polarity (+ and - ends of the
batteries) matches the drawing near the battery compartment. Close
the compartment cover.
Note: Different types of batteries or new and used batteries are not to be
mixed.
Maintenance
l Place the unit on a level surface away from sources of direct sunlight or excessive heat.
l Protect your furniture when placing your unit on a natural wood and lacquered finish. A cloth or other protective material
should be placed between it and the furniture.
l Clean your unit with a soft cloth moistened only with mild soap and water. Keep moisture away from the SD card slot and
USB port. Stronger cleaning agents, such as Benzine, thinner or similar materials can damage the surface of the unit.
Make sure the unit is unplugged before cleaning.
clock battery backup
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