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Casio fx-250D Manual Del Usuario página 7

Calculadora científica

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  • MEXICANO, página 26
*fx-250D
Two AA size manganese dry batteries (UM-3) give -
approximately 9,000 hours continuaus operation -
'approx, 11,000 hours on-type-R6P
(SUM-3}). — .
When battery power decreases, the whole display.
darkens. Batteries should then be renewed. Be sure
to switch OFF the power:before changing, ~ :.:°
"Twa alkaline-manganese batteries (LR44} give ap-
proximately
750
hours
continuous
operation
{1,820 hours on type SR44 (G-13} silver oxide-bat-.
teries). When battery power decreases, the whole
-display.darkens. Batteries should then be renewed.
Be sure. to switch OFF the power before changing. '
a
Ce
_.
Battery replacement:
:
1. Open the battery compartment lid on the back 02, Insert naw batteries with polarity as indicated!
the unit by loosening the screw.
Never touch this, Replace' the back panel.
inside of the unit except the battery compartment
on
Cte
2. Remove cead batteries and insert new batteriePRECAUTIONS: |
with. porality as indicated.
Incorrectly using batteries can cause e them to 5 burst c or
3, Replace the lid. Screw carefully.
_ ,
leak, possibly damaging the interior of the unit. Note
a
;
7
the following precautions:
PRECAUTIONS:
"
_#Be sure that the positive (+) and negative {-) poles
Incorrectly using batteries can-Gause them to burst © of each battery are facing in the proper direction, -
leak, possibly damaging the interior of the unit. NotisNever mix batteries of different types.
the following precautions:
*Never mix old batteries and néw ones.
*Be sure that the positive (+') and negative {—} pole'sNever
leave dead batteries , in the, battery, « com:
of each battery are facing in the proper direction.
partment.
*Never mix batteries of different types.
'*Remove the batteries if you do not plan to use the
*Never mix old batteries and new ones.
unit for long periods.
'*Never leave dead batteries inthe battery comeReplace the batteries at least once every 2 years, no
partment.
matter how. much the unit is used during that periad.
*Remove the batteries it you dor not plan to use the Never try to recharge the: batteries supplied with the
unit for long periods.
°
unit.
«Replace the batteries at least ance every 2 Years, MeDo not expose batteries to direct heat, let them be-
mattér how much the unit is used during that perioc come shorted, or try to take them apart.
*Never try to recharge the batteries supplied with th:
unit.
-Should a battery leak, clean out the battery c com-
*Do not expose
batteries to direct heat, fet them bq
partment
of. the unit immediately,
taking care
to"
come shorted, or try to take them apart..°.-"
|
avoid letting the battery fluid come into direct con-
:
tact with your skin.
(is batteries out of the reach of small children.
if swallowed, consult with a physician immediately. 'Auto power-off function
"ads
wa
This unit automatically switches OFF if not t operated
_ for approximately 6 minutes. Power can be restored
'
by pressing the (08) key. Memory contents and mode
"setting are retained even when power is switched off.

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Fx-82d