1. Introduction
This manual provides detailed instructions for the installation, operation, and maintenance of your NULKOMMA YL80C Electric Bicycle LCD Display Meter. Please read this guide thoroughly before use to ensure proper functionality and safety.
2. Product Overview
2.1. Components
- 1 x YL80C LCD Display Meter
2.2. Key Features
- YL80C (5-PIN) KDS protocol compatibility.
- Constructed from premium ABS material for sturdiness and wear resistance, ensuring a long service life.
- Waterproof design allows for convenient and practical use in rainy conditions without fear of damage.
- Clear LCD screen for easy readability of riding parameters.
2.3. Product Images
Figure 1: NULKOMMA YL80C LCD Display Meter with control buttons and 5-pin connector.
Figure 2: Detailed view of the YL80C display interface with labeled indicators.
Figure 3: Dimensions of the YL80C display and control unit for reference.
3. Setup and Installation
3.1. Installation Instructions
Follow these steps to install the YL80C LCD Display Meter on your electric bicycle:
- Fix the LCD display part and its control buttons onto the handlebar of your electric vehicle.
- Adjust the display to an appropriate viewing angle for optimal visibility during your ride.
- Ensure the vehicle's power is off. Connect the display's 5-pin connector to the corresponding connector on the controller.
- Turn on the power. The electric vehicle and the display should now be in normal operating state.
Figure 4: YL80C Display securely mounted on an e-bike handlebar.
Figure 5: The 5-pin male waterproof connector for connecting the display to the controller.
3.2. Installation Video
Video 1: General installation guide for an Electric Bike LCD Display Meter with a 5-pin connector. This video provides a visual aid for the installation process.
4. Operating Instructions
4.1. Basic Functions
Power On/Off
Press and hold the Power button (usually marked with a power symbol) to turn the display on or off.
Increase/Decrease Pedal Assist Level (PAS)
Press the Plus (+) or Minus (-) button to adjust the pedal assist level. Higher levels provide more motor assistance and speed.
Walk Assist Mode
Press and hold the Minus (-) button to activate walk assist mode, which provides low-speed assistance for pushing the bike.
Display Backlight
Press and hold the Plus (+) button to activate or deactivate the display backlight for improved visibility in different lighting conditions.
Switch between Odometer and Trip Meter
Press the Power button briefly to toggle between the Odometer (TOTAL distance) and Trip Meter (TRIP distance) displays.
Reset Trip Distance
Press and hold both the Power and Minus (-) buttons simultaneously to reset the current trip distance to zero.
4.2. Advanced Settings
The following advanced settings allow for customization of your display. While the video below demonstrates settings for a BAFANG C961 display, many of the functions are similar and can serve as a general guide for the YL80C.
Enter Setting Menu
Press and hold both the Plus (+) and Minus (-) buttons simultaneously to enter the advanced setting menu.
Switch Speed Unit (Metric/Imperial)
Within the setting menu, use the Plus (+) or Minus (-) button to switch the speed unit between kilometers per hour (Km/h) and miles per hour (Mile/h).
Maximum Pedal Assist Speed Setting
In the setting menu, use the Plus (+) or Minus (-) button to adjust the maximum speed at which pedal assist will be provided.
Backlight Brightness Setting
Access this setting in the menu to adjust the display's backlight brightness. Typically, there are 0-8 levels of brightness available.
Clock Setting
Within the setting menu, use the Plus (+) and Minus (-) buttons to adjust the current minute and hour for the display's clock.
Auto-off Setting
In the setting menu, you can adjust the time duration after which the display will automatically turn off due to inactivity.
Pedal Assist Level (PAS) Setting
This setting allows you to fine-tune the amount of assistance provided at each pedal assist level, typically adjustable between a range like 3 and 9.
Wheel Diameter Setting
It is crucial to set the correct wheel diameter in the display's settings to ensure accurate speed and distance readings. Use the Plus (+) or Minus (-) button to adjust this value.
4.3. Advanced Settings Video Guide
Video 2: This video demonstrates advanced settings for a BAFANG C961 display. While not identical to the YL80C, it provides a helpful visual reference for navigating and adjusting common e-bike display settings.
5. Specifications
| Feature | Specification |
|---|---|
| Model Number | YL80C |
| Brand | NULKOMMA |
| Voltage | 36V 48V (compatible) |
| Interface | Waterproof 5-pin male |
| Material | ABS |
| Product Weight | Approximately 135 grams / 4.76 ounces |
| Applicable Handlebar Diameter | 22.2mm, 25.4mm, 28.6mm, 31.8mm (0.87in, 1in, 1.13in, 1.25in) |
| Screen Size | 4.1 Inches |
| Display Type | LCD |
| Sensor Type | Speed Sensor, Cadence Sensor |
| Connectivity Technology | Plug |
| International Protection Rating | IP65 |
6. Maintenance
6.1. Cleaning
Wipe the display screen and body with a soft, damp cloth. Avoid using abrasive cleaners, solvents, or harsh chemicals, as these can damage the display surface or internal components.
6.2. Waterproofing
The YL80C display is rated IP65 for water and dust resistance, meaning it is protected against low-pressure water jets from any direction. However, it is not designed for prolonged submersion. Ensure all connectors are securely fastened to maintain its waterproof integrity, especially after installation or adjustments.
6.3. Storage
When not in use for extended periods, store the display in a cool, dry place away from direct sunlight and extreme temperatures. Disconnecting it from the e-bike battery is recommended to prevent any potential drain.
7. Troubleshooting
7.1. Display Not Turning On
- Check all cable connections, especially the 5-pin connector to the controller, to ensure they are secure and fully inserted.
- Verify that your e-bike battery is charged and properly connected to the system.
- Ensure the power button is pressed and held for a sufficient duration (typically 2-3 seconds).
7.2. Incorrect Speed/Distance Readings
- Confirm that the wheel diameter setting in the display's advanced settings is accurately configured for your bicycle's wheel size.
- Inspect the speed sensor for proper alignment and ensure it is not obstructed or damaged.
7.3. Buttons Unresponsive
- Try restarting the display by turning the e-bike power off and then back on.
- Ensure no debris or foreign objects are obstructing the buttons, preventing them from being pressed correctly.
8. Warranty and Support
8.1. Warranty Information
This product comes with a 100% warranty. If you encounter any problems or have questions about our products, please feel free to contact us directly for assistance. We are committed to replying to your inquiries within 12-24 hours and will do our best to help you solve the problem as soon as possible.
8.2. Contact Support
For further assistance or inquiries, please refer to your purchase platform for seller contact information or reach out to NULKOMMA customer service through the provided channels.