1. Introduction
The KING-METER WH527 is an intelligent LCD display designed for electric bicycles, providing essential riding information and control functions. This manual will guide you through the installation, operation, and maintenance of your WH527 display to ensure optimal performance and longevity.
2. Safety Information
⚠️ Please mind potential fire risk and strictly follow the instruction manual for charging and storage.
Always ensure your e-bike's power is off before installing or removing the display. Avoid exposing the display to extreme temperatures, direct sunlight for prolonged periods, or harsh chemicals. Keep the display dry and clean.
3. Product Overview
The WH527 display features a clear LCD screen that shows various parameters of your electric bicycle. It is designed for easy mounting on standard handlebars.
Figure 3.1: Front view of the WH527 display.
Figure 3.2: Angled view of the WH527 display, showing battery, speed, and PAS level.
Figure 3.3: WH527 display mounted on bicycle handlebars.
4. Specifications
| Feature | Description |
|---|---|
| Model | WH527 |
| Size | 77.6mm x 45.4mm x 49.9mm |
| Functions | Battery indicator, Headlight, Walk mode, PAS level, Speed, Trip, ODO, Trip time, Light sensor, Mile/KM, WATT |
| Communication | UART, LIN, CAN |
| Holder Diameter | 22.2mm |
| Voltage Compatibility | 24V/36V/48V |
| Rated Working Current | 10mA |
| Maximum Working Current | 30mA |
| Off-state Leakage Current | <1μA |
| Working Temperature | -20℃ ~ 60℃ |
| Storage Temperature | -30℃ ~ 70℃ |
| Certifications | EN15194:2017/CE/RoHS/IP66 |
5. Setup Instructions
The WH527 display is a customized product. It is crucial to ensure compatibility with your specific e-bike system. Please follow these steps for proper installation:
- Contact Seller for Customization: Before or immediately after placing your order, contact the seller to provide your e-bike's information. This ensures the display is correctly configured for your system (e.g., Bafang motor, specific controller).
- Prepare Mounting Location: Identify a suitable location on your handlebars (22.2mm diameter) for the display. Ensure it does not obstruct your view or control of the bicycle.
- Mount the Display: Secure the WH527 display to the handlebars using its integrated bracket. Tighten the screws firmly but do not overtighten to avoid damage.
- Connect Wiring: Carefully connect the display's wiring harness to your e-bike's controller or designated display port. Ensure all connections are secure and correctly aligned. Refer to your e-bike's wiring diagram if necessary.
- Initial Power-On: After installation, turn on your e-bike's power. The display should light up and show initial readings.
Figure 5.1: WH527 display and its mounting bracket for handlebar installation.
6. Operating Instructions
The WH527 display provides real-time information and control over your e-bike's functions. While specific button layouts may vary slightly, the core functions are generally accessed as follows:
- Power On/Off: Typically, a long press of the central button (or a dedicated power button) will turn the display on or off.
- PAS Level Adjustment: Use the '+' and '-' buttons (or up/down arrows) to increase or decrease the Pedal Assist System (PAS) level. This controls the motor's assistance.
- Headlight Control: A short press of a specific button (often the '+' button or a dedicated light button) may toggle the e-bike's headlight on/off.
- Information Display Modes: Short presses of the central/mode button usually cycle through different display modes, showing:
- Current Speed (Km/h or Miles/h)
- Battery Indicator (percentage or bars)
- Trip Distance (TRIP)
- Total Odometer (ODO)
- Trip Time
- Wattage (WATT)
- Remaining Range ('to go')
- Walk Mode: A long press of the '-' button (or a dedicated walk button) may activate walk assist, providing low-speed motor assistance for pushing the bike.
- Unit Switching (Km/h / Miles/h): This setting is usually found within the display's advanced settings menu, accessible by a specific button combination (e.g., holding '+' and '-' simultaneously) when the display is on.
For detailed button functions and advanced settings, refer to the specific instructions provided by your e-bike manufacturer or the display's original documentation, as customization may affect these.
7. Maintenance
Proper maintenance ensures the longevity and reliability of your WH527 display:
- Cleaning: Use a soft, damp cloth to clean the display screen and body. Avoid abrasive cleaners, solvents, or harsh chemicals that could damage the plastic or screen coating.
- Protection: While the display has an IP66 rating (dust tight and protected against powerful water jets), avoid submerging it in water or exposing it to high-pressure washing.
- Storage: When not in use for extended periods, store the e-bike and display in a cool, dry place, away from direct sunlight and extreme temperatures.
- Cable Inspection: Periodically check all cables and connectors for signs of wear, damage, or loose connections. Ensure they are securely plugged in.
8. Troubleshooting
If you encounter issues with your WH527 display, consider the following common problems and solutions:
- Display Not Turning On:
- Check if the e-bike battery is charged and turned on.
- Ensure all display cables are securely connected to the controller.
- Verify the display's power button is functioning correctly.
- Incorrect Readings (Speed, Distance):
- Confirm that the wheel size setting in the display's menu (if accessible) matches your e-bike's wheel size.
- Check the speed sensor and magnet for proper alignment and cleanliness.
- Display Shows Error Code:
- Refer to your e-bike's controller manual or contact the seller for a list of error codes and their meanings.
- Often, error codes indicate issues with the motor, battery, or controller.
- Color Difference on Screen:
- Due to variations in monitors and brightness settings, slight color differences may exist between product images and the actual display. This is generally normal and not a defect.
If troubleshooting steps do not resolve the issue, please contact the seller for further assistance.
9. User Tips
- Customization is Key: Since this is a customized product, always communicate your e-bike's specific details (e.g., motor type, battery voltage, controller model) to the seller when ordering. This ensures the display is pre-configured for optimal compatibility.
- Verify Compatibility: Double-check the voltage (24V/36V/48V) and communication protocol (UART, LIN, CAN) compatibility with your e-bike system before purchase and installation.
- Handlebar Fit: The display is designed for a 22.2mm handlebar holder. Ensure your handlebars match this size or use appropriate shims if needed.
10. Support
For any questions, problems, or support regarding your KING-METER WH527 display, please contact the seller directly. They are best equipped to provide assistance for this customized product.
If you receive a defective or damaged product, please document the issue with photos or videos immediately upon receipt and contact the seller before attempting any repairs or returns. Do not sign the shipping bill if the product is visibly defective upon delivery.
