DT910P - Calculator AURORA - Free user manual and instructions

Product Type	Calculator
Brand	Aurora
Model	DT910P
Color	Black
Display Type	LCD
Display Digits	10 digits
Power Source	Solar and battery (LR44)
Battery Type	LR44
Solar Panel	Yes
Number of Keys	35
Key Material	Plastic
Dimensions (W × D × H)	150 × 100 × 20 mm
Weight	150 g
Material	Plastic
Functions	Basic arithmetic, percentage, square root, memory (M+, M-, MR, MC)
Auto Power Off	Yes
Operating Temperature	0 – 40 °C
Storage Temperature	-20 – 50 °C
Included Accessories	User manual (PDF)
Certifications	CE, RoHS
Warranty	2 years
Maintenance	Wipe with a dry cloth
Reparability	Not user-repairable; contact authorized service

Frequently Asked Questions - DT910P AURORA

How do I replace the battery?

To replace the battery, remove the screw on the back cover, lift the cover, and replace the old LR44 battery with a new one, ensuring correct polarity. Then close the cover and tighten the screw.

How do I reset the calculator?

Press the AC (All Clear) button to reset the current calculation. For a full reset (including memory), remove the battery for a few seconds and reinsert it.

Why is the display dim?

A dim display usually indicates low battery or insufficient light for the solar panel. Try replacing the battery or moving the calculator to a brighter area. If the problem persists, contact support.

How do I use the memory functions?

Use M+ to add the current displayed number to memory, M- to subtract, MR to recall memory, and MC to clear memory. The memory indicator appears on the display when memory is non-zero.

What does the 'E' on display mean?

The E indicates an error or overflow. This happens when the result exceeds the display capacity (10 digits) or you divide by zero. Press AC to clear the error.

Can I use the calculator without batteries?

Yes, the calculator has a solar panel that powers it in sufficient light. However, a battery is recommended for consistent operation in low-light conditions.

How do I clean the calculator?

Turn off the calculator and wipe the exterior with a soft, dry cloth. Do not use any liquids, solvents, or abrasive cleaners as they may damage the device.

Is the calculator waterproof?

No, the Aurora DT910P is not waterproof. Keep it away from water and high humidity to avoid damage.

What is the warranty period?

The Aurora DT910P comes with a 2-year warranty against manufacturing defects. Keep your proof of purchase for warranty claims.

How do I download the manual?

Visit the official Aurora support website or the product page on notice-facile.com. Enter the model DT910P and download the PDF manual for free.

USER MANUAL DT910P AURORA

6. What does the ▷ do?

This is the backspace or delete key, pressing this deletes the last digit you entered.

7. 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.

8. 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.

9. My calculator has stopped working – what should I do?

Firstly you should 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.

www.aurora-ltd.co.uk

Producer

Aurora Electronics (UK) LTD.

Unit 1 & 2 Shires Industrial Estate

Uchfield, Staffordshire, WS14 9AZ, U.K.

9219732

AURORA

DT910P

Thank you for purchasing your nezw Aurora DT910P calculator, please remove and recycle all packaging.

Instructions and FAQ's:

1. Turning your calculator on and off.

Your calculator is equipped with a patented 'direct number input' feature, which allows you to press 'any' key to turn your calculator on, should you press a number key, then this number will also register in the display. The calculator is equipped with an 'auto off' feature and will power down by itself after a period of inactivity.

2. What are the COST, SELL and MARGIN keys for?

These buttons allow you to calculate 'gross profit margin' and your required cost or sell prices. There are 3 variables - Cost, Sell and Margin, if you input two of these variables the calculator will automatically solve the 3rd.

Example 1.

My cost is 30, I will sell for 60 – what gross profit margin am I making? [Input 3, 0, COST, 6, 0, SELL] – The answer will be displayed as 50%

Example 2.

My cost is 30, I want to make 50% gross profit – what should I sell it for? [Input 3, 0, COST, 5, 0, MARGIN] – The answer will be displayed as 60

Example 3.

I will sell for 60 and want to make 50% gross profit – what should my cost be? [Input 6, 0, SELL, 5, 0, MARGIN] – The answer will be displayed as 30

After you have solved any 3rd variable you can review all 3 variables by pressing the cost, sell and margin keys again.

3. What are the '+TAX' and '-TAX' keys for?

These buttons allow you to add or remove a user definable percentage at the touch of a button. A common use for these buttons is to add or remove sales tax.

Firstly you need to set the tax rate.

Example – Setting a tax rate of 20%

[Input 2,0, RATE, SET] – The SET key is on the same key as '+TAX'.

The tax rate is now set at 20% and will remain in the memory until you change it even when the calculator turns off. Now you have set your tax

rate you can simply add or remove tax easily by using the '+Tax' and '-Tax' Keys

Example1 – The price is 60 including 20% sales tax, what is the price exclusive of tax?

[Input 6, 0, -TAX] – The answer is displayed as 50.00

Example 2 – The price is 60 excluding 20% sales tax, what is the price including tax?

[Input 6, 0, +TAX] – The answer is displayed as 72.

You can also view the actual tax content and the total by pressing the same tax key again.

You can also review the currently programmed Tax rate by pressing 'RATE' and 'RECALL' (the recall key is on the same key as the '-TAX' key) the currently set tax rate will be displayed on the screen.

4. How do the memory keys work?

Your calculator has a memory and you can store a variable number, to store a number press the 'M+' key, you can store a simple number or an answer from a calculation. The memory also has a running total, so you can add and deduct numbers using the M+ and M- keys. To see the number stored in the memory or the running total press the MRC key once. To clear the memory and reset back to zero press the MRC key twice.

Example1 - Store the answers to the simple sums 2 + 2 and 3 + 3 in the memory and calculate the total.

[Input 2, +, 2, M+, 3, +, 3, M+] now press the MRC key once, the correct answer of 10 will be displayed. To clear and reset your memory press the MRC key a second time. Whenever a number is stored in the memory an 'M' will show on the display.

Example 2 – Use the memory to add these number together 5, -6, 8, 9, -4.

[Input 5, M+, -6, M+, 8, M+, 9, M+, -4, M+] – now press MRC and the correct answer 12 will be displayed. To clear and reset your memory press the MRC key a second time.

5. What does the C/CE key do?

CE means clear entry, pressing this will remove your last entry but not your whole sum.

C means cancel, pressing the key again will cancel your whole calculation.