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GREAT BRITAIN

 

For consumer contact, please visit www.clasohlson.

co.uk and click on customer service. Internet: www.clasohlson.co.uk

We apologise for any text or photo errors and any changes of 
technical data. If you have any questions concerning technical 
problems please contact our Customer Service Department.

ENGLISH

Remove the battery holder 

and peel off the plastic film 

on the battery to activate 

the ruler.

Calculator Ruler • Article number 31-2026  

Please read the entire instruction manual before using and save it for future use.

A. Setting the time (setup mode)

1.  Press  , then press “LONDON”.

2.  Press “SET” twice and set the seconds (the second 

digits will flash) using the arrow keys (

Λ

 and 

V

).

3.  Press “SET” once more and set the hours (the hour 

digits will flash) using the arrow keys (

Λ

 and 

V

).

4.  Continue in the same way, setting the minutes, year, 

month and date. Press “SET” again to save your 

settings.

5.  Select 12 or 24 hour display using the “12/24” button  

(in setup mode).

B. Displaying the time in other cities

You can find out what the time is in various cities by 

pressing the respective button (press twice to view 

summer time, once more to resume normal time display).

C. Calendar

You can skip forward or backward a month at a time using 

the arrow keys (

Λ

) and (

V

), the calendar contains all the 

years from 1901 to 2099. 

D. Setting the alarm

Press   to enter the setup mode.

1.  Press “SET” once and set the alarm time (hours) 

using the arrow keys (

Λ

) and (

V

).

2.  Press “SET” once and set the alarm time (minutes) 

using the arrow keys. (

Λ

) and (

V

). Press “SET” to 

save the setting.

3.  Press   to turn the alarm off/on.

4.  You can also turn the alarm off using the “SNOOZE” 

button, it will ring again after five minutes.

E. Countdown

1.  Press “COUNTDOWN” to enter the setup mode. 

2.  Press “SET” and set the desired countdown date 

(year, month, date) using the arrow keys (

Λ

 and 

V

), 

press “SET” after each setting. 

3.  Press “COUNTDOWN” (in display mode) to view the 

number of days remaining until the set date.  

F.  Timer

1.  Press (TIMER)

2.  Press “SET” twice and set the hour (the hour digits 

will flash) using the arrow keys (

Λ

 and 

V

). 

3.  Press “SET” once more and set the minutes (the 

minute digits will flash) using the arrow keys  

(

Λ

 and 

V

). 

4.  Press “TIMER” to start/stop the countdown.

5.  Press any of the buttons to deactivate the alarm.

G. Calculator

Press (CAL/AC) to enter the calculator mode.

a. Normal 8-digit calculator 

b. Currency converter

1.  Press (C1) or (C2) (in calculator mode)

2.  Press “SET ” to enter the exchange rate, e.g. 9.1234. 

(in this example 1€ =9.1234 SEK), you can set different 

currencies on C1 and C2. 

 

Example calculation: 

how many Swedish Crowns 

(SEK) is 85.65 € worth? Press:

 

85.65 *C1 the answer is 

776.49 SEK

H. Note

•  You can turn the sound on/off by pressing the (

) key.

•  In calculator mode you can skip backwards a digit at a 

time from the left side of the display by pressing (

).

•  You can always return to normal time display by 

pressing  .

•  Battery change: The ruler operates on a CR2025 (3 V) 

battery, this should be replaced when the display starts 

to fade. 

I.  Resetting

Remove the battery holder and the battery if you wish to 

delete all your settings. Insert the battery again afterwards.

J.  Disposal

Follow local ordinances when disposing of this product. If 

you are unsure about how to dispose of this product con-

tact your municipality.

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