1. المقدمة
Thank you for choosing the Deli WM01120 12-Digit Dual Power Basic Calculator. This manual provides essential information for the proper setup, operation, and maintenance of your calculator. Please read it thoroughly to ensure optimal performance and longevity of your device.
2. انتهى المنتجview
The Deli WM01120 is a versatile 12-digit basic calculator designed for both office and home use. It features a large LCD display, dual power options (solar and battery), and advanced functions like Grand Total (GT) and a 120-step check and correct feature.

الصورة 2.1: الجبهة view of the Deli WM01120 calculator, showcasing its 12-digit display and key layout.

الصورة 2.2: تفصيلية view of the calculator, pointing out the high-quality LCD display, integrated chip for performance, rubber keyboard design, and dual power capability.
3. الإعداد
3.1 مصدر الطاقة
The Deli WM01120 calculator operates on a dual power system: solar energy and battery power. This ensures reliable operation in various lighting conditions.
- الطاقة الشمسية: The calculator utilizes solar energy for power when sufficient light is available.
- طاقة البطارية: For low-light conditions or when solar power is insufficient, the calculator automatically switches to battery power. It requires two LR44 batteries (included).

Image 3.1: Illustration of the calculator's dual power options, highlighting the solar panel and battery compartment.
3.2 تركيب/استبدال البطارية
لتثبيت البطاريات أو استبدالها:
- تأكد من إيقاف تشغيل الآلة الحاسبة.
- حدد مكان حجرة البطارية في الجزء الخلفي من الآلة الحاسبة.
- افتح غطاء البطارية.
- Insert two LR44 batteries, ensuring correct polarity (+/-).
- أغلق غطاء البطارية بشكل محكم.
4. تعليمات التشغيل
4.1 العمليات الأساسية
- ON/C·CE: Press to turn on the calculator or clear the current entry. Press twice to clear all entries and memory.
- التيار المتردد: All Clear. Clears all entries and memory.
- Number Keys (0-9, .): Input numerical values.
- Arithmetic Operators (+, -, ×, ÷): Perform addition, subtraction, multiplication, and division.
- =: Displays the result of a calculation.
- %: بيرسنtagمفتاح e.
4.2 Grand Total (GT) Function
The GT (Grand Total) key accumulates the results of all previous calculations. After performing several calculations, pressing GT will display the sum of all those results.

Image 4.1: A hand pressing the GT key on the calculator, demonstrating its use for summing multiple calculation results.
4.3 120-Step Check and Correct Function
تتيح لك هذه الوظيفة إعادةview and correct up to 120 previous calculation steps. This is useful for verifying long calculations and rectifying errors without re-entering the entire sequence.
- التحقق من: Press to enter check mode and review previous entries. Repeated presses cycle through entries.
- CORRECT (00→0): While in check mode, use this key to correct an incorrect entry.
- AUTO REPLAY: Automatically replays the entire calculation sequence.

Image 4.2: The calculator display showing the 'CHECK' function in action, allowing users to review past entries.
4.4 وظائف الذاكرة
- م +: يضيف القيمة المعروضة إلى الذاكرة.
- م-: يطرح القيمة المعروضة من الذاكرة.
- مركز موارد المهاجرين: Recalls the memory content. Pressing it twice clears the memory.

Image 4.3: Close-up of the calculator's memory function keys: MRC, M-, and M+.
4.5 Tax Functions
- جلس: Used to set the tax rate.
- TAX+: Adds tax to the displayed value.
- TAX-: Subtracts tax from the displayed value.

Image 4.4: Close-up of the calculator's tax function keys: SET, TAX-, and TAX+.
4.6 Decimal Point and Rounding Selectors
On the top right side of the calculator, there are slide switches to control the decimal point and rounding settings:
- Decimal Point Selector (F, 5/4, 0, 2, 3, 4): Controls the number of decimal places displayed. 'F' is for floating decimal.
- Rounding Selector (Cut, Up, 5/4): Determines how results are rounded. 'Cut' truncates, 'Up' rounds up, '5/4' rounds to the nearest value.

Image 4.5: Close-up of the slide switches for decimal point control and rounding settings.
4.7 إيقاف التشغيل التلقائي
The calculator features an auto power-off function to conserve energy. If left idle for a certain period, it will automatically turn off. Press the ON/C·CE key to turn it back on.

الصورة 4.6: الجانب view of the calculator, illustrating its compact design and the automatic power-off feature for energy saving.
4.8 فيديو التشغيل
Video 4.1: This video demonstrates the basic operation and key features of the Deli WM01120 calculator, including inputting numbers and performing calculations.
5. الصيانة
- تنظيف: Use a soft, dry cloth to clean the calculator's surface. Do not use liquid cleaners or abrasive materials.
- تخزين: احفظ الآلة الحاسبة في مكان بارد وجاف بعيداً عن أشعة الشمس المباشرة ودرجات الحرارة القصوى.
- العناية بالبطارية: إذا لم يتم استخدام الآلة الحاسبة لفترة طويلة، قم بإزالة البطاريات لمنع التسرب.
6. استكشاف الأخطاء وإصلاحها
| مشكلة | السبب المحتمل | حل |
|---|---|---|
| العرض فارغ أو خافت. | إضاءة غير كافية لتوليد الطاقة الشمسية؛ انخفاض مستوى البطارية. | Move to a brighter area; replace batteries. |
| نتائج حسابية غير صحيحة. | Incorrect entry; incorrect decimal/rounding settings. | Use the Check and Correct function to review entries; verify decimal and rounding switch positions. |
| المفاتيح لا تستجيب. | Calculator frozen; physical obstruction. | Press AC to reset; check for debris under keys. |
7. المواصفات
| ميزة | التفاصيل |
|---|---|
| ماركة | أطعمة لذيذة |
| رقم الموديل | WM01120 (also referred to as EM01120 in some specifications) |
| لون | أسود |
| نوع الآلة الحاسبة | الوظيفة القياسية |
| مصدر الطاقة | Battery Powered (2 x LR44 included), Solar Power |
| حجم الشاشة | 20 Centimetres (diagonal) |
| نوع العرض | شاشة الكريستال السائل |
| مواد التغليف | بلاستيك |
| أبعاد المنتج (الطول × العرض) | 30L x 140W Millimeters (approx. 139.1 x 130.7 x 30mm) |
| وزن العنصر | 140 جرام |
| عدد الارقام | 12 |
8. الضمان والدعم
The Deli WM01120 calculator comes with a ضمان لمدة 3 سنوات from the date of purchase, covering manufacturing defects. For warranty claims or technical support, please contact your retailer or the manufacturer directly. Please retain your proof of purchase for warranty validation.