1. Pengenalan
The AED2-SCIWIL SR-M818X is an advanced LCD display designed for electric bicycles. It provides essential riding data and control functions, featuring a 4-inch screen with light sensing capabilities and a waterproof design for durability in various conditions. This manual will guide you through the installation, operation, and maintenance of your SR-M818X display.
2. Persediaan
The SR-M818X display connects to your e-bike's controller via a waterproof connector. Ensure proper wiring according to the pinout diagram provided below. The display unit is typically mounted on the handlebars. Ensure the connection is secure and the display is positioned for optimal visibility.

Figure 1: Waterproof Connector Pinout Diagram
| Pin | Warna Wayar | Fungsi |
|---|---|---|
| 1 | merah | VCC instrument power cord |
| 2 | Biru | Kp controller power control line |
| 3 | Hitam | GND instrument ground wire |
| 4 | hijau | Data receiving line (RX meter) |
| 5 | kuning | TX instrument data transmission line |
3. Arahan Operasi
The SR-M818X display provides various functions accessible via its integrated control unit.

Figure 2: Control Unit Button Layout
Fungsi Asas:
- Hidup/Mati: Press the power button to turn the display on or off.
- Membantu Kawalan Tahap: Use the "Plus" (+) and "Minus" (-) buttons to adjust the assist level (3, 5, or 9 levels, depending on configuration).
- Lampu Depan: Press the "Front Light" button to control the e-bike's front light (if supported by the controller).
- info: Press the "Info" button to cycle through various display information such as single-trip distance (TRIP) and total travel distance (ODO).
- Bantuan Berjalan: Activate walk assist mode using the dedicated button.
Maklumat Paparan:
- Kelajuan: Current speed displayed in km/h or mph.
- Petunjuk Bateri: Shows battery level percentage dan vol rendahtage amaran.
- Tahap Bantuan: Indicates the current pedal assist level.
- Jarak: Tracks single-trip distance (TRIP) and total travel distance (ODO).
- Maklumat Menunggang: Displays braking status, front light status, cruise control status, and low voltage amaran.
- Petunjuk Kod Ralat: The display will show error codes if issues are detected.
Advanced Features (Optional, if supported by controller):
- Kata Laluan But: If enabled, a password may be required to start the system.
- System Unit Switch: Change speed and distance units between km/h and mph.
- Isyarat Berpusing: If integrated with the controller, turning signal status may be displayed.
- Kawalan dan Paparan Dwi Pemacu: For e-bikes with dual motor systems.
- Double Battery Packs Status: Displays status for e-bikes with two battery packs.
- Fungsi NFC: For specific functionalities using NFC technology.
- Sambungan Bluetooth: Allows for OTA (Over-The-Air) firmware upgrades via a mobile phone application.
4. Penyelenggaraan
The SR-M818X display is designed to be durable and waterproof, ensuring reliable performance in various riding conditions.

Figure 3: Waterproof Design of the SR-M818X
- Pembersihan: Wipe the screen and unit with a soft, damp cloth. Avoid abrasive cleaners or solvents that could damage the display or casing.
- Suhu: Operate and store the display within the specified temperature ranges (-20β to 60β for operation, -30β to 70β for storage) to ensure optimal performance and longevity.
- Sambungan: Periodically check all electrical connections to ensure they are secure and free from dirt or corrosion.
- Tahan Air: While waterproof, avoid submerging the unit for extended periods or exposing it to high-pressure water jets, which could compromise its seals.
5. Penyelesaian masalah
If you encounter issues with your SR-M818X display, consider the following common troubleshooting steps:
- Tiada Kuasa: Ensure the e-bike battery is charged and all electrical connections, especially the power cord (Red VCC) and ground wire (Black GND), are securely connected.
- Display Not Responding: Check the controller power control line (Blue Kp) and the data transmission lines (Green RX, Yellow TX) for proper connection.
- Kod Ralat: The display is equipped with an error code indication system. If an error code appears, refer to your e-bike's main controller manual for specific interpretations or contact customer support.
- Bacaan Tidak Tepat: Verify that the wheel size and other relevant settings in your e-bike controller are correctly configured, as these can affect speed and distance accuracy.
Jika masalah berterusan selepas mencuba langkah-langkah ini, sila hubungi khidmat pelanggan untuk bantuan lanjut.
6. Spesifikasi
| Ciri | Perincian |
|---|---|
| Model | SR-M818X |
| Protokol | Lithium battery No. 2 protocol |
| Saiz Skrin | LCD 4.0 inci |
| Bekerja Voltage | DC24V/36V/48V/60V/72V |
| Dinilai Semasa Bekerja | 12mA |
| Arus Kebocoran | Kurang daripada 1uA |
| Suhu Bekerja | -20 β hingga 60 β |
| Suhu Penyimpanan | -30 β hingga 70 β |
| bahan | plastik |
| warna | Hitam |
| Jenis Penyambung | Sm Connector/Waterproof Connector |
| Kandungan Pakej | 1 x Bike LCD Display |
7. Petua Pengguna
Based on available product information, here are some general tips for optimizing your experience with the SR-M818X e-bike display:
- Familiarize yourself with the button layout (Figure 2) for quick and intuitive access to functions while riding, enhancing safety and convenience.
- Regularly check your battery percentage displayed on the screen to plan your rides effectively and avoid unexpected power loss.
- Utilize the "Info" button to monitor your single-trip distance (TRIP) and total mileage (ODO), which can be useful for tracking fitness goals or maintenance schedules.
- If your e-bike system supports it, consider enabling the boot password feature for added security against unauthorized use.
- Ambil advantage of the light sensing function for automatic backlight adjustment, ensuring optimal visibility in varying light conditions.
8. Waranti dan Sokongan
For specific warranty information, return policies, or technical support regarding your SCIWIL SR-M818X Electric Bike Meter, please contact the seller or manufacturer directly. It is recommended to keep your purchase receipt and the product model number (SR-M818X) handy when contacting support to facilitate a quicker resolution.





