OSALO OS-8812T Desktop Calculator User Manual

1. Киришүү

Thank you for choosing the OSALO OS-8812T Desktop Calculator. This manual provides detailed instructions for setting up, operating, maintaining, and troubleshooting your calculator. Designed for home and office use, this 12-digit calculator features a large display, comfortable buttons, and essential functions including VAT tax calculation. Please read this manual thoroughly to ensure optimal performance and longevity of your device.

Figure 1.1: OSALO OS-8812T Desktop Calculator

2. Продукт бүтүп калдыview

Familiarize yourself with the calculator's layout and key functions.

Figure 2.1: Key Functions Diagram

• 1. Operation Symbol Display: Shows the current operation symbol (e.g., +, -, ×, ÷).
• 2. GT (Grand Total): Displays the grand total of all calculations performed since the last GT clear.
• 3. M+, M- (Memory Plus/Minus): Adds/subtracts the displayed value to/from the memory.
• MRC (эстутумду кайра чакыруу/тазалоо): Press once to recall memory, press twice to clear memory.
• 4. Back Space (◀): Акыркы киргизилген санды өчүрөт.
• 5. AC (All Clear): Эстутумду кошо алганда, бардык жазууларды жана эсептөөлөрдү тазалайт.
• C/CE (Clear Entry/Clear): Clears the last entry. Press twice to clear the current calculation.
• 6. TAX+, TAX- (Tax Rate Settings): Used for tax calculations. TAX+ adds tax, TAX- subtracts tax.
• БАА: Used to set the tax rate.
• 7. MU (Mark-Up): Used for profit margin calculations.
• 8. √ (Root): Көрсөтүлгөн сандын квадрат тамырын эсептейт.

The calculator features a 5-inch large LCD display capable of showing up to 12 digits, ensuring clear visibility. The display is tilted at 15 degrees for enhanced viewсооронуч.

Figure 2.2: Calculator Dimensions and 15-degree Display Tilt

The keys are ergonomically designed with a concave shape for comfortable and accurate input.

Figure 2.3: Concave Design Round Buttons

3. Орнотуу

The OSALO OS-8812T calculator operates on dual power: solar energy and a single LR44 battery (included). The battery provides power in low-light conditions, while the solar panel powers the calculator in sufficient light, extending battery life.

3.1. Батареяны орнотуу

The calculator comes with an LR44 battery pre-installed. If replacement is needed:

1. Калькуляторду которуңуз.
2. Батарея уясынын капкагын табыңыз.
3. Remove the cover and insert one LR44 battery, ensuring correct polarity (+/-).
4. Батарея бөлүкчөсүнүн капкагын бекем орнотуңуз.

Figure 3.1: Battery Compartment and Anti-Slip Mat Location

3.2. Күйгүзүү/өчүрүү

The calculator automatically powers on when a key is pressed. It will automatically power off after approximately 8-10 minutes of inactivity to conserve energy.

4. Иштөө нускамалары

4.1. Негизги эсептөөлөр

• Кошумча (+): Enter first number, press +, enter second number, press =.
• Кемитүү (-): Enter first number, press -, enter second number, press =.
• Көбөйтүү (×): Enter first number, press ×, enter second number, press =.
• Бөлүм (÷): Enter first number, press ÷, enter second number, press =.
• Персенtage (%): Enter number, press ×, enter percentage value, press %. (e.g., 100 × 10 % = 10)
• Чарчы тамыр (√): Enter number, press √.

4.2. Tax Function (VAT)

The calculator features a built-in tax function for quick VAT calculations. You can set a custom tax rate.

Figure 4.1: Tax Function Operation Examples

4.3. Эстутум функциялары

• M+: Көрсөтүлгөн маанини эс тутумга кошот.
• М-: Көрсөтүлгөн маанини эстутумдан чыгарат.
• MRC: Press once to recall the value stored in memory. Press twice to clear the memory (M).
• GT (жалпы жалпы): Accumulates the results of all calculations. Press GT to display the grand total. The grand total is cleared when AC is pressed.

5. Техникалык тейлөө

• Clean the calculator with a soft, dry cloth. Do not use abrasive cleaners or solvents.
• Калькуляторду экстремалдык температуранын, нымдуулуктун же тике күн нурунун узак убакытка таасир этүүдөн сактаңыз.
• Do not drop or subject the calculator to strong impacts.
• Эгерде эсептегич көпкө чейин колдонулбаса, агып кетүүнүн алдын алуу үчүн батарейканы алып салуу сунушталат.

6. Кыйынчылыктарды

• Дисплей бош: Ensure there is sufficient light for the solar panel or check if the LR44 battery needs replacement.
• Туура эмес эсептөөлөр: Press the AC button to clear all previous entries and calculations before starting a new one. Ensure correct operation sequence.
• Ачкычтар жооп бербейт: Clean around the keys to remove any debris. If the issue persists, the battery might be low.
• Дисплейдеги ката билдирүүсү: Press AC to clear the error and re-enter the calculation. This usually occurs due to overflow or invalid operations.

7. Техникалык шарттар

8. Кепилдик жана колдоо

OSALO products are manufactured with high-quality materials and undergo strict quality control. For any questions, technical support, or warranty claims, please contact OSALO customer service through the retailer where the product was purchased. Please retain your proof of purchase for warranty purposes.