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• Be sure to replace the back-up battery at least once every 5 years. Otherwise,
you run the risk of losing data stored in memory.
1. Press OFF to turn power off.
2. Remove the screw that holds the back-up battery compartment cover in place
and open the cover.
RESET
3. Insert a thin, pointed object into (A) and remove the old battery.
RESET
4. Load a new battery into the compartment, making sure that its positive side is
facing up (so you can see it).
5. Replace the battery compartment cover and secure it with its screw.
• Take care that you do not overtighten the screw.
■ Turning Power On and Off
Press ON/OFF to turn power on and off.
Important!
• If nothing appears on the display when you turn on power, it means that the main
batteries are low. Replace the batteries (page 13) and press the RESET button
to resume normal operation.
Auto Power Off Function
The unit automatically turns power off if you do not press any key for about three
minutes. Any alarms you set still sound, even if power is turned off.
(A)