Casio fx-7400G PLUS 부록 - 페이지 4
{카테고리_이름} Casio fx-7400G PLUS에 대한 부록을 온라인으로 검색하거나 PDF를 다운로드하세요. Casio fx-7400G PLUS 15 페이지. Chapter 9 - data communications
Casio fx-7400G PLUS에 대해서도 마찬가지입니다: 제품 카탈로그 (16 페이지), 사용자 설명서 (13 페이지), 사양 (1 페이지), 사양 (1 페이지), 사용자 설명서 (18 페이지), 사용자 설명서 (15 페이지), 사용 설명서 (13 페이지), 사용 (2 페이지)
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Appendix
Appendix B Power Supply
This unit is powered by two AAA-size (LR03 (AM4) or R03 (UM-4)) batteries. In addi-
tion, it uses a single CR2032 lithium battery as a back up power supply for the memory.
If the following message appears on the display, immediately stop using the calcula-
tor and replace batteries.
If you try to continue using the calculator, it will automatically switch power off, in
order to protect memory contents. You will not be able to switch power back on until
you replace batteries.
Be sure to replace the main batteries at least once every two years, no matter how
much you use the calculator during that time.
k k k k k Replacing Batteries
Precautions:
Incorrectly using batteries can cause them to burst or leak, possibly damaging the
interior of the unit. Note the following precautions:
196
Warning!
If you remove both the main power supply and the memory back up batteries at the
same time, all memory contents will be erased. If you do remove both batteries,
correctly reload them and then perform the reset operation.
The batteries that come with this unit discharge slightly during shipment and
storage. Because of this, they may require replacement sooner than the normal
expected battery life.
• Be sure that the positive (+) and negative (–) poles of each battery are facing in
the proper directions.
• Never mix batteries of different types.
• Never mix old batteries and new ones.
• Never leave dead batteries in the battery
compartment.
• Remove the batteries if you do not plan to
use the unit for long periods.
• Never try to recharge the batteries sup-
plied with the unit.
• Do not expose batteries to direct heat, let
them become shorted, or try to take them
apart.