Rhagymadrodd
This manual provides detailed instructions for the proper use and maintenance of your Deli 1700 240F Scientific Calculator. Please read this manual thoroughly before using the calculator to ensure correct operation and to maximize its lifespan. This calculator is designed for a wide range of mathematical and scientific computations, featuring a two-line display and 10+2 digits for enhanced functionality.
Gosod
1. Gosod Batri
The Deli 1700 240F Scientific Calculator operates on both solar power and two nonstandard batteries. For optimal performance, ensure batteries are installed correctly.
- Lleolwch glawr adran y batri ar gefn y gyfrifiannell.
- Using a small screwdriver, carefully remove the screw and slide off the battery compartment cover.
- Insert two nonstandard batteries, ensuring the positive (+) and negative (-) terminals are aligned correctly as indicated inside the compartment.
- Amnewid gorchudd adran y batri a'i ddiogelu gyda'r sgriw.
Note: The calculator also utilizes solar power. Ensure adequate light exposure for solar operation, especially when batteries are low or not installed.
2. Troi ymlaen yn gychwynnol
Gwasgwch y [YMLAEN] button to turn on the calculator. The display should show '0' or a similar initial state. If the display does not appear, check battery installation or ensure sufficient light for solar power.
Cyfarwyddiadau Gweithredu
The Deli 1700 240F features a two-line display, showing the input expression on the upper line and the result on the lower line. It supports 240 types of functions.

Image: The Deli 1700 Scientific Calculator's two-line display, illustrating its ability to show both input and results simultaneously. This image highlights the clear numerical output and function indicators.
1. Gweithrediadau Rhifyddeg Sylfaenol
Enter numbers using the numeric keypad. Use the [+], [-], [×], a [÷] keys for addition, subtraction, multiplication, and division, respectively. Press [=] i gael y canlyniad.
2. Swyddogaethau Gwyddonol
The calculator includes various scientific functions accessible via the [SHIFT] cywair. Gwasgwch [SHIFT] followed by the desired function key to activate its secondary function (indicated above the key).
- Swyddogaethau trigonometrig: [SIN], [COS], [TAN] a'u ffwythiannau gwrthdro ([SHIFT] + [SIN⁻¹], ac ati).
- Swyddogaethau Logarithmig: [LOG] (sylfaen 10) a [LN] (logarithm naturiol).
- Swyddogaethau Pŵer a Gwraidd: [x²], [√], [xʸ], [ʸ√x].
- Factorial: [x!].
3. Swyddogaethau Cof
Storio ac adalw gwerthoedd gan ddefnyddio'r bysellau cof:
- [M+]: Yn ychwanegu'r gwerth a ddangosir at y cof.
- [M-]: Yn tynnu'r gwerth a ddangosir o'r cof.
- [MR]: Recalls the value from memory.
- [MC]: Yn clirio'r cof.
4. Unedau Ongl
The calculator supports Degree (DEG), Radian (RAD), and Grad (GRA) angle units. Press [MODE] repeatedly to cycle through the angle units. The current unit is indicated on the display.

Delwedd: Manwl view of the Deli 1700 Scientific Calculator's display and key layout. This image emphasizes the model number and the clarity of the 10+2 digit display, along with key labels like SHIFT and ALPHA.
Cynnal a chadw
1. Glanhau
To clean the calculator, use a soft, dry cloth. Do not use abrasive cleaners, solvents, or spray directly onto the calculator. Avoid excessive moisture.
2. Amnewid Batri
When the display becomes dim or calculations are incorrect, it may be time to replace the batteries. Follow the battery installation steps outlined in the Setup section. Always replace both batteries at the same time with new ones of the same type.
3. Storio
Store the calculator in a cool, dry place away from direct sunlight and extreme temperatures. Avoid dropping the calculator or subjecting it to strong impacts.
Datrys problemau
| Problem | Achos Posibl | Ateb |
|---|---|---|
| Mae'r arddangosfa'n wag neu'n dywyll. | Low batteries or insufficient light for solar power. | Replace batteries or move to a brighter area. |
| Canlyniadau cyfrifo anghywir. | Incorrect mode setting (e.g., angle unit) or input error. | Check angle unit (DEG/RAD/GRA). Clear all memory and re-enter calculation. Press [CLR] to clear current calculation. |
| Nid yw'r gyfrifiannell yn ymateb i wasgu allweddi. | Temporary system error or very low power. | Gwasgwch [YMLAEN]/[ODDI] to restart. If issue persists, remove and reinsert batteries. |
Manylebau
- Brand: Deli
- Model: 1700
- Enw'r Model: 240F
- Math o Gyfrifiannell: Peirianneg/Gwyddonol
- Math Arddangos: LCD, Two-line display
- Digidau: 10+2 digid
- Ffynhonnell Pwer: Solar Powered & Battery
- Nifer o fatris: 2 Batri Ansafonol (angenrheidiol)
- Maint y sgrin: 1 Centimeter (approximate viewardal galluog)
- Lliw: Gwyn
- Deunydd Amgaead: Plastig
- Gwneuthurwr: Deli
Gwybodaeth Gwarant
This Deli 1700 240F Scientific Calculator is covered by a standard manufacturer's warranty. Please refer to the packaging or contact your retailer for specific warranty terms and conditions. Keep your proof of purchase for warranty claims.
Cefnogaeth i Gwsmeriaid
For further assistance, technical support, or inquiries regarding your Deli 1700 240F Scientific Calculator, please contact Deli customer service through their official website or the contact information provided with your purchase. Ensure you have your model number (1700 240F) ready when contacting support.