導入
This manual provides comprehensive instructions for the proper use and maintenance of your SHARP EL531XTWH Scientific Calculator. Designed for students and professionals, this calculator offers over 273 advanced scientific and mathematical functions, utilizing Direct Algebraic Logic (D.A.L.) for intuitive operation.
図1: 前面 view of the SHARP EL531XTWH Scientific Calculator, showcasinディスプレイとキーパッド。
Key features include a large 12-digit, 2-line LCD display, 273 functions, two operational modes (Normal & Stat), 8 temporary memory buttons, and 1 & 2 variable statistics capabilities. Its durable design and twin power source (solar with battery backup) ensure reliable performance.
設定
1. バッテリーの取り付け
The SHARP EL531XTWH calculator is twin-powered, operating on solar energy with a battery backup. A 1.5V LR44 battery is included. If the display becomes dim or unresponsive in low light, the battery may need replacement.
- Turn the calculator OFF.
- 電卓の背面にある電池ボックスを見つけます。
- Carefully open the battery cover using a small screwdriver or coin.
- Remove the old battery (if applicable) and insert a new LR44 battery, ensuring the correct polarity (+/-).
- 電池カバーをしっかりと閉じてください。
図2：戻る view of the calculator, indicating the battery compartment location.
2. Initial Power On and Display Check
を押す オン/C key to turn on the calculator. The display should show "0." or "0.00" depending on the initial settings. If the display is blank or shows unusual characters, ensure the battery is correctly installed and try pressing the リセット button (usually a small recessed button requiring a thin object like a paperclip).
操作手順
1. 基本的な算術演算
Enter numbers and operations in the order they appear. The Direct Algebraic Logic (D.A.L.) system allows for natural input.
- 追加： [Number 1] [+] [Number 2] [=]
- 減算: [Number 1] [-] [Number 2] [=]
- 乗算： [Number 1] [x] [Number 2] [=]
- 分割： [Number 1] [÷] [Number 2] [=]
2. Function Keys Overview
The calculator features a wide array of function keys. Many keys have secondary functions, accessed by pressing the 2階 key first, indicated by text above the primary key function.
図 3: 拡大図 view of the calculator's display and function keys.
三角関数
使用 罪, コス, 日焼け 正弦、余弦、正接の逆関数（罪-1, コス-1, 日焼け-1）は、 2階.
対数関数と指数関数
Keys include ログ （常用対数）、 ln (natural logarithm), 10x、 そして ex.
Power and Root Functions
利用する x2, x3, √ (square root), and 3√ (立方根)。
メモリ機能
The calculator has 8 temporary memory buttons. Use STO (Store) to save a value and RCL (Recall) to retrieve it.
統計計算
統計モードに入るには、 モード 次に選択 ステータス. The calculator supports 1 and 2 variable statistics. Refer to the on-screen prompts for data entry and calculation of statistical values like mean, standard deviation, etc.
3.モードの選択
を押す モード key to switch between Normal and Statistical modes. Ensure you are in the correct mode for your calculations.
メンテナンス
1. 清掃
To clean the calculator, gently wipe the surface with a soft, dry cloth. For stubborn dirt, a slightly damp cloth can be used, but ensure no liquid enters the calculator. Do not use abrasive cleaners or solvents.
2. ストレージ
When not in use, store the calculator in its protective hard case to prevent scratches and damage. Avoid exposing the calculator to extreme temperatures, humidity, or direct sunlight for prolonged periods.
Figure 4: The calculator shown with its durable gloss black protective hard case.
3. バッテリーの交換
As mentioned in the Setup section, replace the LR44 battery when the display becomes dim or the calculator malfunctions in low light conditions. Always dispose of old batteries according to local regulations.
トラブルシューティング
| 問題 | 考えられる原因 | 解決 |
|---|---|---|
| ディスプレイが空白または暗い。 | 太陽光発電に十分な光がないか、バッテリー残量が少ない。 | Move to a brighter area. Replace the LR44 battery. |
| 電卓がキーを押しても反応しません。 | Temporary system error or low battery. | を押す リセット button on the back of the calculator using a thin, pointed object. Ensure battery is good. |
| 計算結果が正しくありません。 | Incorrect mode selected (e.g., DEG/RAD/GRAD, Normal/Stat), or input error. | Check the current mode settings. Review your input sequence. Perform a リセット 必要であれば。 |
| 「ERROR」メッセージが表示されます。 | Mathematical error (e.g., division by zero, invalid function argument). | Review the calculation for mathematical validity. Press オン/C エラーをクリアします。 |
仕様
- モデル番号: EL531XTWH
- 機能: 273
- 画面： 大型12桁2行LCD
- 電源: Twin powered (Solar with LR44 battery backup)
- 電池のタイプ： LR1 44個（付属）
- 寸法（長さ×幅×高さ）： 6.3 x 3.1 x 0.04インチ
- 商品の重量: 5.6オンス
- 色： 黒と白
- 電卓の種類: 工学/科学
保証とサポート
For product support, warranty information, or inquiries, please contact SHARP Electronics of Canada Ltd. at the following details:
- 住所： 5995 Avebury Road Suite 900, Mississauga ON, L5R 3P9, Canada
- 電話： （905）568-7140
- Webサイト： www.sharp.ca
保証請求のために購入証明書を保管してください。
