EC-329  (650-0946)               Battery               Faxback Doc. # 16602

REPLACING THE BATTERY

Batteries used in the EC-329.

                                Type        Model        Q'ty

Unit operation (main)           Lithium     CR2025       1

Memory backup                   Lithium     CR2025       1

CAUTION:  Do not remove the operating and memory backup batteries at the
          same time.  All the data stored in the memory will be lost.

Replacing the operating battery

If the display is hard to read or neither an alarm nor key touch tone
sounds, the battery is exhausted.  Replace the battery immediately.  Loss
or alteration of stored data may occur if an exhausted battery is used or
when replacing the battery incorrectly.

Be sure to keep a written record of all important data.

1.  Press OFF to turn off the power.

2.  Remove the screw from the operating battery cover on the back of the
    EC-329 and remove the cover.

3.  Remove the old battery.

4.  Install the new battery with the plus + side up, first hooking it under
    the tab.

5.  Replace the battery cover and the screw.

6.  Press C-CE ON to turn on the power.

7.  Set the clock.

Replacing the memory backup battery

The memory backup battery has a backup capacity of approximately five years
at room temperature (68 degrees F/20 degrees C).  Replace the battery at
least once every five years.  The label on the back of the EC-329 indicates
the date of battery installation at the factory.  Use this date label as a
reference for when to replace the battery.

Example:  If the battery was installed in November 1990, the following
          label would be on the EC-329.

          90110C
          Year Month Serial number

NOTE:  Extreme conditions may shorten battery life and the stored data may
       be altered or lost.

       When replacing the memory backup battery, make sure that the
       operating battery is not exhausted.

       If the operating battery is exhausted, replace it before replacing
       the memory backup battery.

       If the operating battery is exhausted and the memory backup battery
       is replaced, the stored data may be altered or lost.


Replace the memory backup battery using the same procedure as in
"Replacing the operating battery".

Replace the memory backup battery at least once every five years.


(br/all-08/21/95)