Sharp EL-344RB Metric Conversion Wallet Calculator User Manual

ແນະນຳ

Thank you for choosing the Sharp EL-344RB Metric Conversion Wallet Calculator. This compact and solar-powered calculator is designed for convenient everyday calculations and essential metric conversions. Its 10-digit LCD display ensures clear readability, and the protective wallet case provides portability and durability. This manual provides instructions for the proper setup, operation, and maintenance of your calculator.

Image: The Sharp EL-344RB Metric Conversion Wallet Calculator, shown with its protective wallet case. The calculator features a 10-digit LCD display and a standard keypad.

ຕັ້ງຄ່າ

The Sharp EL-344RB calculator is solar-powered and does not require batteries under normal operating conditions. For optimal performance, ensure the solar panel is exposed to sufficient light.

ການນໍາໃຊ້ເບື້ອງຕົ້ນ:

1. ແກະກ່ອງ: Carefully remove the calculator from its packaging and protective wallet case.
2. ເປີດ: The calculator will automatically power on when exposed to light. If the display is blank, ensure the solar panel is receiving adequate illumination.
3. ຈໍສະແດງຜົນທີ່ຈະແຈ້ງ: ກົດ ເປີດ/C button to clear any previous calculations or entries from the display.

ຄໍາແນະນໍາການດໍາເນີນງານ

ການ​ຄິດ​ໄລ່​ພື້ນ​ຖານ​:

• ການບວກ (+), Subtraction (-), Multiplication (×), Division (÷): ໃສ່ຕົວເລກທຳອິດ, ກົດປຸ່ມປະຕິບັດການທີ່ຕ້ອງການ, ໃສ່ຕົວເລກທີສອງ, ຈາກນັ້ນກົດ = ສໍາລັບຜົນໄດ້ຮັບ.
• Clear Entry (CE): Clears the last entered number without affecting previous operations.
• All Clear (ເປີດ/C): Clears all entries and operations, resetting the calculator.
• ເປີເຊັນtage (%): ໃຊ້ສໍາລັບເປີເຊັນtage ການ​ຄິດ​ໄລ່​. ຕົວຢ່າງample, ເພື່ອຄິດໄລ່ 15% ຂອງ 200, ໃຫ້ໃສ່ 200 × 15 %.

Metric Conversion:

The EL-344RB features dedicated keys for common metric conversions. Refer to the calculator's keypad for specific conversion labels (e.g., ຊຕມ/ນິ້ວ, kg / lb, L/gal).

1. Enter Value: Input the numerical value you wish to convert.
2. Press Conversion Key: Press the appropriate conversion key. The display will show the converted value.
3. Reverse Conversion: Pressing the same conversion key again will typically convert the value back to its original unit.

Example: Converting 10 inches to centimeters.

1. ເຂົ້າ 10.
2. ກົດ ຊຕມ/ນິ້ວ key. The display will show the equivalent value in centimeters.

ຟັງຊັນຄວາມຈໍາ:

• Memory Plus (M+): ເພີ່ມຄ່າທີ່ສະແດງໃຫ້ກັບຫນ່ວຍຄວາມຈໍາ.
• Memory Minus (M-): ລົບຄ່າທີ່ສະແດງອອກຈາກຫນ່ວຍຄວາມຈໍາ.
• Recall Memory (MR): ສະແດງຄ່າປັດຈຸບັນທີ່ເກັບໄວ້ໃນໜ່ວຍຄວາມຈຳ.
• Clear Memory (MC): Clears the memory, setting its value to zero.

ບໍາລຸງຮັກສາ

• ທໍາຄວາມສະອາດ: Use a soft, dry cloth to clean the calculator's surface. For stubborn dirt, slightly dampen the cloth with water. Avoid using harsh chemicals, abrasive cleaners, or solvents, as these can damage the display or casing.
• ການເກັບຮັກສາ: When not in use, store the calculator in its protective wallet case to prevent scratches and damage. Avoid exposing it to extreme temperatures, high humidity, or direct sunlight for extended periods when stored.
• ແຜງແສງອາທິດ: Keep the solar panel clean and unobstructed to ensure continuous power supply.

ການແກ້ໄຂບັນຫາ

• ຈໍສະແດງຜົນຫວ່າງເປົ່າ:

  Ensure the solar panel is exposed to sufficient light. The calculator requires ambient light to operate. If in a dimly lit environment, move it to a brighter area.
• Incorrect Calculations:

  ກົດ ເປີດ/C to clear all previous operations and memory. Re-enter your calculation carefully. Check for correct key presses and operation order.

• ປຸ່ມບໍ່ຕອບສະໜອງ:

  Ensure the calculator is clean and free from debris around the keys. If the issue persists, try moving it to a brighter area to ensure adequate power.

ຂໍ້ມູນຈໍາເພາະ

ຂໍ້ມູນການຮັບປະກັນ

Specific warranty terms and conditions for the Sharp EL-344RB calculator are typically provided with the product at the time of purchase or can be found on the official Sharp website. Please retain your proof of purchase for warranty claims. For detailed warranty information, please refer to the documentation included in your product packaging or visit the official Sharp support portal.

ການຊ່ວຍເຫຼືອລູກຄ້າ

For further assistance, technical support, or inquiries regarding your Sharp EL-344RB calculator, please contact Sharp customer support. Contact details can usually be found on the official Sharp webສະຖານທີ່ຫຼືຢູ່ໃນການຫຸ້ມຫໍ່ຜະລິດຕະພັນ.

ສະຫນັບສະຫນູນອອນໄລນ໌: ຢ້ຽມຢາມ Sharp ຢ່າງເປັນທາງການ webເວັບ​ໄຊ​ສໍາ​ລັບ FAQs​, ການ​ລົງ​ທະ​ບຽນ​ຜະ​ລິດ​ຕະ​ພັນ​, ແລະ​ຊັບ​ພະ​ຍາ​ກອນ​ສະ​ຫນັບ​ສະ​ຫນູນ​.

ໂທລະ​ສັບ​ສະ​ຫນັບ​ສະ​ຫນູນ​: Refer to your product documentation or the Sharp webສະຖານທີ່ສໍາລັບເບີໂທລະສັບບໍລິການລູກຄ້າໃນພາກພື້ນ.