مقدمة
The MAUL Eco 850 is an environmentally friendly desktop calculator designed for office, desk, and school use. This solar-powered device features a 12-digit LCD display and is constructed from 80% recycled plastic, earning it the "Blue Angel" eco-label. This manual provides instructions for setup, operation, maintenance, and troubleshooting to ensure optimal performance and longevity of your calculator.
Image: The MAUL Eco 850 Desktop Calculator, demonstrating its compact size and clear display.
يثبت
The MAUL Eco 850 calculator is solar-powered and does not require batteries. It is ready for use when exposed to sufficient light.
- فك التعبئة: Carefully remove the calculator from its environmentally friendly, plastic-free packaging.
- تشغيل الطاقة: Place the calculator in an area with adequate ambient light (at least 50 lux). The display should activate automatically. If the display does not turn on, ensure it is exposed to brighter light.
Image: The MAUL Eco 850 calculator ready for use on a desk.
تعليمات التشغيل
The MAUL Eco 850 features a 12-digit LCD display and a range of functions for various calculations.
الوظائف الأساسية
- Addition (+), Subtraction (-), Multiplication (×), Division (÷): Enter the first number, press the desired operation key, enter the second number, then press the equals (=) key for the result.
- بيرسنtagه (٪): لحساب النسبة المئويةtage, enter the base number, press the multiplication (×) key, enter the percentage value, then press the % key. For example, to calculate 10% of 200, enter 200 × 10 %.
- الجذر التربيعي (√): Enter the number, then press the √ key to calculate its square root.
- تغيير الإشارة (+/-): Press this key to change the sign of the displayed number from positive to negative or vice versa.
- الصفر المزدوج (00): Quickly enter two zeros.
وظائف الذاكرة
- M+ (الذاكرة الإضافية): يضيف القيمة المعروضة إلى الذاكرة.
- م- (الذاكرة ناقص): يطرح القيمة المعروضة من الذاكرة.
- MR (استدعاء الذاكرة): يستدعي القيمة المخزنة في الذاكرة إلى الشاشة.
- MC (مسح الذاكرة): Clears the memory.
وظائف واضحة
- تشغيل/تكييف الهواء (الوضع آمن): Clears all entries and memory, resetting the calculator.
- ج (إدخال واضح): Clears the last entered number or the current calculation without affecting memory or previous operations.
الصورة: مفصلة view of the calculator's display and key layout.
صيانة
To ensure the longevity and proper functioning of your MAUL Eco 850 calculator, follow these maintenance guidelines:
- تنظيف: Use a soft, dry cloth to clean the calculator's surface and display. Avoid using liquid cleaners, abrasive materials, or solvents, as these can damage the plastic and electronic components.
- مصدر الطاقة: As the calculator is solar-powered, ensure it is regularly exposed to light to maintain its charge. Avoid storing it in dark places for extended periods.
- تخزين: Store the calculator in a cool, dry place away from direct sunlight, extreme temperatures, and high humidity.
- التعامل: The calculator features sturdy plastic buttons. Avoid dropping the device or subjecting it to strong impacts.
الصورة: الجانب view highlighting the calculator's ergonomic design.
استكشاف الأخطاء وإصلاحها
If you encounter issues with your MAUL Eco 850 calculator, refer to the following common problems and solutions:
| مشكلة | السبب المحتمل | حل |
|---|---|---|
| العرض فارغ أو خافت. | Insufficient light for solar cells. | Move the calculator to a brighter area. Ensure the solar panel is not obstructed. |
| نتائج حسابية غير صحيحة. | Input error or previous calculation residue. | يضعط تشغيل/تيار متردد to clear all entries and memory, then re-enter the calculation. Double-check your input. |
| المفاتيح لا تستجيب. | Temporary software glitch or low power. | Ensure adequate light. If the problem persists, try pressing تشغيل/تيار متردد. |
تحديد
- ماركة: مول
- نموذج: Eco 850 (Model Number: 7268890)
- عرض: 12-digit LCD, 1-line display
- مصدر الطاقة: Solar Powered (operates from 50 lux)
- مادة: Housing made from 80% recycled plastic
- الوظائف: Basic arithmetic (+, -, ×, ÷), Percentage (%), Square Root (√), Memory (M+, M-, MR, MC), Sign Change (+/-), Double Zero (00), Clear Entry (C), All Clear (ON/AC).
- أبعاد: 17.5 × 12.6 × 0.1 سم (تقريبًا 6.9 × 5.0 × 0.04 بوصة)
- وزن: 211 جرامًا (حوالي 7.4 أونصة)
- الشهادات البيئية: Blue Angel / UZ116
Image: The calculator proudly displaying the Blue Angel eco-label.
الضمان والدعم
The MAUL Eco 850 Desktop Calculator comes with a ضمان لمدة 5 سنوات, reflecting MAUL's commitment to precision and reliability. For support or warranty claims, please refer to the contact information provided with your purchase or visit the official MAUL website. MAUL, a German family business with over 110 years of experience, ensures high-quality products and customer service.
