5. What does the C/CE key do?
CE means clear entry pressing this will remove you last entry but not your whole sum.
C means cancel, pressing the key again will cancel your whole calculation.
6. What does the do?
This is the backspace or delete key, pressing this deletes the last digit you entered.
7. What is the switch marked for?
This switch is the round up/down switch, there are 3 positions, the first is marked with the arrow pointing
upwards, on this setting the calculator will round all answers up. The middle setting is marked 5/4, on this
setting the calculator will use the mathematical rule of rounding up when above 5 and rounding down
when below 5, the 3rd setting marked by the arrow pointing down will round all answers down.
IMPORTANT – the rounding and number of decimal places will be affected by the setting of the decimal
place switch see below.
8. What is the switch marked ‘A 0 2 4 F’ for?
This is the decimal place setting switch. The first setting ‘A’ stands for Add mode, here addition and
subtraction functions are performed with an automatic 2 digit decimal this is useful when working with
currency and it speeds up data entry. i.e. If you enter 1, 0, 0, 0 then press +, you will notice that the
display shows 10.00, it assumes when you typed 1,0,0,0 you were entering 10.00 and not 1000.
The second setting ‘0’ fixes the decimal place to zero places, all answers will be rounded to zero decimal
places based on the setting of your rounding key (see above)
The 3
rd
setting is ‘2’, as above all answers will now be rounded to two decimal places.
The 4
th
setting is ‘4’, as above all answers will now be rounded to four decimal places.
The 5
th
setting is ‘F’ which stands for floating, you answer will not be shortened and will be displayed
using the largest amount of digits the screen permits.
9. How do I change the battery?
On the back of the calculator is a circular battery compartment, use a coin or screwdriver and carefully
rotate the cover in an anti clockwise direction to unlock. Replace the battery - your calculator requires an
LR1130. Replace the cover and carefully tighten.
IMPORTANT – when you change or remove the battery always perform a reset, see below.
10. My calculator is performing strangely and requires resetting.
Locate the reset button on the back of the calculator – there is a small hole in the case marked ‘RESET’.
Using a blunt but narrow object (the end of a paperclip or small screwdriver should do) gently depress
the reset button. This should reset your calculator and will solve many potential problems.
11. My calculator has stopped working – what should I do?
Firstly you try a Reset (see above), if you suspect the battery has failed then you should replace this (see
above). If you believe your calculator is faulty and you purchased it less than 1 year ago then it is covered
by a manufacturer’s warranty. Please contact your supplier for details.
Aurora disclaims any liability for incidental or consequential damages attributable to the product. The
liability of Aurora is limited to the cost of the repair/replacement of the unit under warranty.
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