1. Rhagymadrodd
This manual provides detailed instructions for the proper use and maintenance of your OSALO Scientific Calculator, model OS-82ES PLUS II. This calculator is designed for secondary school students and professionals, offering 252 functions, a 2-line display, and dual solar and battery power for reliable operation. Please read this manual thoroughly to ensure optimal performance and longevity of your device.
Figure 1: OSALO Scientific Calculator OS-82ES PLUS II. This image shows the calculator from an angled perspective, highlighting its black body, white keys, and the solar panel at the top. The display shows a complex mathematical integral.
2. Cynnyrch Drosview
Familiarize yourself with the various components and keys of your OSALO Scientific Calculator.
Figure 2: Key components of the OSALO Scientific Calculator. This diagram labels the solar panel, extra large display, control keys, SHIFT key, Mode key, Power on button, Function keys, Delete key, and Last answer key.
- Panel Solar: Provides power in well-lit environments.
- Arddangosfa Fawr Ychwanegol: 2-line LCD for clear viewing of equations and results.
- Allweddi Rheoli: Navigation and directional input.
- Allwedd SHIFT: Accesses secondary functions printed above keys in yellow.
- ALPHA Key: Accesses alphabetic characters and variables printed above keys in red.
- Allwedd Modd: Changes calculation modes (e.g., COMP, STAT, TABLE).
- Botwm AR: Powers on the calculator.
- Allweddi Swyddogaeth: Perform various mathematical and scientific operations.
- DEL (Delete) Key: Deletes the last entered character.
- AC (All Clear) Key: Clears all calculations and memory (except independent memory).
- ANS (Answer) Key: Recalls the result of the previous calculation.
3. Gosod
3.1. Power Supply and Battery Installation
The OSALO Scientific Calculator is powered by both solar energy and an LR44 button cell battery. The battery is included and pre-installed.
- Gwnewch yn siŵr bod y gyfrifiannell wedi'i diffodd.
- Lleolwch yr adran batri ar gefn y gyfrifiannell.
- Defnyddiwch sgriwdreifer bach i agor clawr adran y batri.
- If replacing, remove the old LR44 battery.
- Insert a new LR44 battery with the positive (+) side facing up.
- Amnewid gorchudd adran y batri a'i ddiogelu gyda'r sgriw.
Note: The solar panel provides supplementary power and extends battery life, but a functional battery is required for consistent operation, especially in low-light conditions.
3.2. Troi ymlaen yn gychwynnol
Gwasgwch y ON button to turn on the calculator. The display will show "0" or the last calculated result.
3.3. Turning Off the Calculator
I ddiffodd y gyfrifiannell, pwyswch SHIFT yna AC (OFF). The calculator will also automatically power off after a period of inactivity to conserve battery life.
4. Cyfarwyddiadau Gweithredu
4.1. Cyfrifiadau Sylfaenol
Enter numbers and operators as you would write them. Press = i gael y canlyniad.
- Ychwanegiad: 1 + 2 =
- Tynnu: 5 - 3 =
- Lluosi: 4 × 6 =
- Adran: 10 ÷ 2 =
4.2. 2-Line Display and Natural Input/Output
Mae gan y gyfrifiannell arddangosfa LCD 2 linell, sy'n eich galluogi i view both the input expression and the result simultaneously. It supports natural input and output, displaying fractions, roots, and other expressions as they appear in textbooks.
Ffigur 3: Examples of Natural Input & Output and Full-do Display. The image shows how complex fractions and roots are displayed in a natural, written form, and how statistical data can be viewed in a full-dot matrix display.
4.3. Using Scientific Functions (252 Functions)
The calculator provides 252 functions, including trigonometric, logarithmic, exponential, power, root, fraction, permutation, combination, and statistical calculations.
- Swyddogaethau Eilaidd: Gwasgwch SHIFT followed by the desired key to access the yellow-printed function above it.
- Alpha Functions: Gwasgwch ALPHA followed by the desired key to access the red-printed character or variable above it.
- Swyddogaethau trigonometrig: Defnydd pechod, gos, lliw haul keys. Inverse functions are accessed via SHIFT.
- Swyddogaethau Logarithmig: Defnydd log (sylfaen 10) a ln (natural logarithm) keys.
- Ffracsiynau: Defnyddiwch y ab/c key to input and convert fractions.
- Ystadegau: Gwasgwch MODD and select STAT mode. Refer to the calculator's on-screen menu for specific statistical calculations (e.g., standard deviation, linear regression).
- Swyddogaethau Cof: Defnydd STO (Siop) a RCL (Recall) keys to store and retrieve values from independent memory.
4.4. Brightness Adjustment Function
The calculator features a brightness adjustment function to optimize display visibility and reduce visual fatigue.
Figure 4: Brightness Adjustment Function. This image illustrates the difference between a 'Dark' display setting (to relieve visual fatigue) and a 'Bright' setting (for clear and intuitive viewing), demonstrating the calculator's adjustable screen brightness.
To adjust brightness, navigate through the MODD settings or use specific key combinations as indicated in the on-screen menu.
5. Nodweddion Allweddol
The OSALO Scientific Calculator OS-82ES PLUS II is equipped with several features designed to enhance usability and functionality for academic and professional use.
Ffigur 5: Drosoddview of 252 Functions. This image highlights key capabilities such as Multi-replay function, Combination and Permutation, Statistics (STAT-data editor, Standard deviation, Regression analysis), Fraction Calculation, 9 variable memories, and the inclusion of a slide-on hard case.
- 252 swyddogaeth: Comprehensive set of mathematical, statistical, and scientific functions.
- 2-Line Large Display: Clear and simultaneous display of input and results, supporting natural textbook display.
- Allweddi Sensitif: Premium induction buttons provide quick and accurate response to input.
- Hard Sliding Cover: Ergonomically designed cover protects the calculator from damage and provides a comfortable grip.
- Dual Power (Solar & Battery): Ensures reliable operation in various lighting conditions.
- Swyddogaeth aml-ailchwarae: Allows for quick review and editing of previous calculations.
- STAT-data Editor: Facilitates statistical calculations including standard deviation and regression analysis.
- 9 Variable Memories: Store and recall up to 9 different values for complex calculations.
Figure 6: Detail of LCD Display and Comfortable Keys. This image provides a close-up view of the calculator's clear LCD display and the tactile, responsive keys, emphasizing user comfort and readability.
6. cynnal
6.1. Glanhau
- Sychwch ochr allanol y gyfrifiannell gyda lliain meddal, sych.
- Ar gyfer baw ystyfnig, ychydig yn dampgolchwch y brethyn gyda dŵr a glanedydd ysgafn, yna sychwch ar unwaith.
- Do not use strong solvents, abrasive cleaners, or spray cleaners directly onto the calculator.
6.2. Storio
- Store the calculator in a cool, dry place, away from direct sunlight and extreme temperatures.
- Always use the provided hard sliding cover to protect the display and keys when not in use.
- Avoid placing heavy objects on the calculator.
6.3. Amnewid Batri
When the display becomes dim or calculations are erratic, it may be time to replace the LR44 battery. Follow the instructions in Section 3.1. "Power Supply and Battery Installation". Dispose of used batteries according to local regulations.
7. Datrys Problemau
| Problem | Achos Posibl | Ateb |
|---|---|---|
| Nid yw'r gyfrifiannell yn troi ymlaen. | Low or dead battery; insufficient light for solar power. | Replace the LR44 battery. Ensure adequate lighting for solar panel. |
| Mae'r arddangosfa'n dywyll neu'n wag. | Low battery; poor lighting; brightness setting too low. | Replace battery. Move to a brighter area. Adjust display brightness (refer to Section 4.4). |
| Canlyniadau cyfrifo anghywir. | Incorrect mode setting; syntax error; incorrect input. | Gwiriwch y modd cyfredol (e.e., DEG/RAD, COMP/STAT).view input for errors. Press AC i glirio ac ailgychwyn. |
| Nid yw'r allweddi'n ymatebol. | Calculator frozen; physical obstruction. | Try turning the calculator off and on again. Check for debris under keys. |
| "Math ERROR" or "Syntax ERROR" displayed. | Mathematical impossibility (e.g., division by zero); incorrect expression format. | Review your input for mathematical errors or incorrect syntax. Press AC i glirio'r gwall. |
8. manylebau
Figure 7: Calculator Dimensions and Weight. This image provides a side and front view of the calculator, indicating its approximate thickness (0.79 inches / 20mm), height (6.46 inches / 164mm), width (3.15 inches / 80mm), and net weight (4.9oz / 140g). Note that official specifications may vary slightly.
| Nodwedd | Manylyn |
|---|---|
| Model | OS-82ES PLUS II |
| Brand | OSALO |
| Swyddogaethau | 252 |
| Math Arddangos | 2-line LCD, Natural Textbook Display |
| Maint Arddangos Sgrin | 6 Centimedr |
| Ffynhonnell Pwer | Solar & Battery Supply (LR44 x 1, included) |
| Math o Ddeunydd | Plastig |
| Dimensiynau Cynnyrch | 16.4 x 8 x 0.1 cm (6.46 x 3.15 x 0.04 modfedd) |
| Pwysau Eitem | 190 g (tua 6.7 owns) |
| Yn cynnwys Batri y gellir ei Ailwefru | Nac ydw |
9. Gwarant a Chefnogaeth
For specific warranty information, please refer to the documentation provided at the time of purchase or contact your retailer. OSALO products are designed for reliability and performance.
If you encounter issues not covered in the troubleshooting section, or require further assistance, please contact OSALO customer support through their official websafle neu'r wybodaeth gyswllt a ddarperir gyda phecynnu eich cynnyrch.