1. Pengenalan
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. Produk Lebihview
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.
Imej 2.1: Depan view of the Deli WM01120 calculator, showcasing its 12-digit display and key layout.
Imej 2.2: Terperinci view of the calculator, pointing out the high-quality LCD display, integrated chip for performance, rubber keyboard design, and dual power capability.
3. Persediaan
3.1 Sumber Kuasa
The Deli WM01120 calculator operates on a dual power system: solar energy and battery power. This ensures reliable operation in various lighting conditions.
- Kuasa Suria: The calculator utilizes solar energy for power when sufficient light is available.
- Kuasa Bateri: 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 Pemasangan/Penggantian Bateri
Untuk memasang atau menggantikan bateri:
- Pastikan kalkulator dimatikan.
- Cari petak bateri di bahagian belakang kalkulator.
- Buka penutup bateri.
- Insert two LR44 batteries, ensuring correct polarity (+/-).
- Tutup penutup bateri dengan selamat.
4. Arahan Operasi
4.1 Operasi Asas
- ON/C·CE: Press to turn on the calculator or clear the current entry. Press twice to clear all entries and memory.
- AC: All Clear. Clears all entries and memory.
- Number Keys (0-9, .): Input numerical values.
- Operator Aritmetik (+, -, ×, ÷): Melakukan operasi tambah, tolak, darab dan bahagi.
- =: Displays the result of a calculation.
- %: Peratustagkunci 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
Fungsi ini membolehkan anda untuk semulaview and correct up to 120 previous calculation steps. This is useful for verifying long calculations and rectifying errors without re-entering the entire sequence.
- SEMAK: 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 Fungsi Memori
- M+: Menambah nilai yang dipaparkan pada memori.
- M-: Menolak nilai yang dipaparkan daripada memori.
- BSMM: 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
- SET: Used to set the tax rate.
- CUKAI+: Menambah cukai pada nilai yang dipaparkan.
- CUKAI-: Menolak cukai daripada nilai yang dipaparkan.
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 Auto Mati
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.
Imej 4.6: Sisi view of the calculator, illustrating its compact design and the automatic power-off feature for energy saving.
4.8 Video Operasi
Video 4.1: This video demonstrates the basic operation and key features of the Deli WM01120 calculator, including inputting numbers and performing calculations.
5. Penyelenggaraan
- Pembersihan: Gunakan kain lembut dan kering untuk membersihkan permukaan kalkulator. Jangan gunakan pembersih cecair atau bahan kasar.
- Storan: Simpan kalkulator di tempat yang sejuk dan kering, jauh daripada cahaya matahari langsung dan suhu yang melampau.
- Penjagaan Bateri: Jika kalkulator tidak akan digunakan untuk tempoh yang lama, keluarkan bateri untuk mengelakkan kebocoran.
6. Penyelesaian masalah
| Masalah | Kemungkinan Punca | Penyelesaian |
|---|---|---|
| Paparan kosong atau malap. | Cahaya tidak mencukupi untuk kuasa solar; bateri lemah. | Move to a brighter area; replace batteries. |
| Keputusan pengiraan yang salah. | Incorrect entry; incorrect decimal/rounding settings. | Use the Check and Correct function to review entries; verify decimal and rounding switch positions. |
| Kekunci tidak responsif. | Calculator frozen; physical obstruction. | Press AC to reset; check for debris under keys. |
7. Spesifikasi
| Ciri | Perincian |
|---|---|
| Jenama | deli |
| Nombor Model | WM01120 (also referred to as EM01120 in some specifications) |
| warna | Hitam |
| Jenis Kalkulator | Fungsi Standard |
| Sumber Kuasa | Battery Powered (2 x LR44 included), Solar Power |
| Saiz Skrin | 20 Centimetres (diagonal) |
| Jenis Paparan | LCD |
| Bahan Kepungan | plastik |
| Dimensi Item (L x W) | 30L x 140W Millimeters (approx. 139.1 x 130.7 x 30mm) |
| Berat Barang | 140 Gram |
| Bilangan Digit | 12 |
8. Waranti dan Sokongan
The Deli WM01120 calculator comes with a Waranti 3 tahun 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.