SR-260N_English_090324.rtf SIZE: 135x75mm / SCALE 2:1 / 2009/3/26
E2
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 ───── sin–1
1st function ─── sin
1st functions
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.