Citizen SR-270N User Manual download pdf (Page 3)

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General Guide

Turning on or off



To turn the calculator on, press [

] ; To turn the calculator off,

press [ OFF ].

Battery replacement



The calculator is powered by two alkaline batteries (G13 or LR44).

When the display dims, replace the batteries. Be careful not to be

injured when you replace the battery.

1. Unscrew the screws on the back of the calculator.

2. Insert a ﬂ at bladed screwdriver into the slot between the

upper and lower case then carefully twist it to separate the

case.

3. Remove both batteries and dispose of them properly. Never

allow children to play with batteries.

4. Wipe off the new batteries with a dry cloth to maintain good

contact.

5. Insert the two new batteries with their ﬂ at sides (plus termi-

nals) up.

6. Align the upper and lower cases then snap them to close

together.

7. Tighten the screws.

Auto power-off function



This calculator automatically turns it off when not operated for

approximately 9~15 minutes. It can be reactivated by pressing

[

] key and the display, memory, settings are retained.

Reset operation



If the calculator is on but you get unexpected results, press [

]

and then [ MODE ] four times to display the below menu. A message

appears on the display to conﬁ rm whether you want to reset the cal-

culator and clear memory contents after pressing [ 2 ].

To clear all variables, pending operations, statistical data, answers,

all previous entries, and memory, please press [ 2 ]. To abort the

reset operation without clearing the calculator, please press [ 1 ].

If the calculator is lock and further key operations becomes impos-

sible, please use a pointed object to press the reset hole to release

the condition. It will return all settings to default settings.

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Citizen SR-270N User Manual Page 3

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