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Procedures
When battery power becomes
for replacing
low, a message will show
unit operation
indicating that a new set of
batteries
batteries are needed.
1. Turn off the calculator's power
2. Turn over the calculator.
3. Replace all four AAA
Note: Do not remove the lithium
4. Replace the battery
5. After a few seconds, press
6. Press O.
Replacing the
Once every 5 years, the lithium battery will need to be replaced.
memory backup
The lithium battery is used to maintain the memory of the
battery
calculator.
(@ o ).
Locate the battery
compartment cover, and
open the cover as illustrated.
batteries as illustrated.
battery while the unit
operation batteries are
removed; otherwise all the
calculator's stored memory
will be lost.
compartment cover.
O.
The following message will
appear.
If the message does not
appear, repeat the procedures from step 2.
Do not press C. This will clear all the data.
Appendix
229
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