Citizen Systems SR-260N manual General guide, Power supply, Keyboard

General guide

Power supply

On or Off :

To turn the calculator on, press [ON/C]; to turn the calculator off, press [2ndF] [OFF].

Auto power-off function :

This calculator automatically turns off it when not operated for approximately 9 minutes. Power can be restored by pressing the [ON/C] key again. Memory contents and the previous mode setting (STAT, DEG, CPLX, Base-n,…) are retained even when power is turned off or auto power-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 flat 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 flat sides (plus terminals) up.

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

7.Tighten the screws.

The keyboard

Many of the calculator’s keys are used to perform more than one function. The functions marked on the keyboard are printed differently to help you find the one you need quickly and easily.

2nd function ─────

1st function ───

1st functions

sin–1

sin

Those are the functions that are normally executed when you press the key.

2nd functions

The second function is printed above or to the right of the key. To execute 2nd functions key, please press [ 2ndF ] then the corresponding key. When you press [ 2ndF ], the “2ndF” indicator shown in the display is to tell you that you will be selecting the second function of the next key you press. If you press [ 2ndF ] by mistake, simply press [ 2ndF ] again to remove the “2ndF” indicator.

E2

SR-260N_English_090324.rtf SIZE: 135x75mm / SCALE 2:1 / 2009/3/26