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4. MAINTENANCE, TROUBLESHOOTING
4-6
4.6 Replacement of Battery
The display unit and processor unit have a battery which stores data when the
power is turned off. When the battery voltage is low the message “BATTERY!”
appears on the display. Open the message display, by pressing the [MENU] key
and choosing “MESSAGES”, to find out which battery’s voltage is low. Have a
qualified technician replace the battery, following the procedure below. The life of
the batteries is 3-5 years.
Battery Location Type Code No.
Display Unit TZ6580553A 000-139-951
Processor Unit CR2450-F2ST2 000-133-495
1. Press the [MENU] key to open the menu.
2. Choose SYS SETUP and press the [ENT] key.
3. Choose EXCHANGE BATTERY? And press the [ENT] key.
DISPLAY UNIT
PROCESSOR UNIT
Battery exchange options
4. Choose DISPLAY UNIT or PROCESSOR UNIT as appropriate and press the
[ENT] key.
EXCHANGE BATT?
(DISPLAY UNIT)*
ARE YOU SURE?
YES NO
* Or processor unit
Prompt for exchanging battery
5. Press ◄ to choose YES and press the [ENT] key. The following message
appears.
READY FOR
BATTERY CHANGE.
TURN OFF THE
UNIT.
Prompt for turning off the power
6. At this time the contents of the RAM are temporarily moved to the flash
memory. Turn off the power.
7. Have a qualified technician replace the battery.