Haytrix F4 E-Bike LCD Screen Speedometer User Manual

1. Introduction

Thank you for choosing the Haytrix F4 E-Bike LCD Screen Speedometer. This advanced cycling computer is designed to enhance your e-bike riding experience by providing essential metrics and convenient features. This manual will guide you through the installation, operation, and maintenance of your new display.

2. Product Overview

The Haytrix F4 is a horizontal mid-mounted VA color LCD display offering a dynamic, vivid, and larger display area for all your riding data. It integrates various functions to keep you informed during your rides.

Key Features:

• NFC Functionality: Easily activate or interact with the display using an NFC card.
• Comprehensive Data Display: Shows speed, battery level, PAS mode, mileage (ODO/TRIP), current, voltage, and error warnings.
• Headlight Control: Integrated control for your e-bike's headlight.
• Boost Function: Provides assistance when needed.
• Type-C Charging Interface: Convenient 5V/500mA output for emergency mobile phone charging.
• Durable Design: Built to withstand various riding conditions.

3. Specifications

4. Installation

Important Notice: The product protocol is UART 2. Please ensure your e-bike controller uses the UART 2 protocol. If the protocols do not match, the product may not work properly. Inappropriate interface replacement may also affect normal use.

Installation Process:

1. Mount the display bracket onto your e-bike's handlebar. The bracket is compatible with 22.2mm, 25.4mm, 28.6mm, and 31.8mm handlebar diameters.
2. Securely attach the F4 display unit to the mounted bracket.
3. Attach the separate control panel (buttons) to a convenient position on the handlebar, typically near the grip.
4. Secure the control panel firmly.
5. Connect the display's cable (7-Core Connector, 1800mm length) to the corresponding port on your e-bike's controller. Ensure a snug and secure connection.
6. Power on your e-bike and verify that the display functions correctly.

5. Operation

Powering On/Off:

Press and hold the power button on the control panel to turn the display on or off.

NFC Function:

The F4 display supports NFC. To activate or interact with the display using an NFC card, simply tap the card against the designated NFC area on the display. This feature can be used for various functions depending on your e-bike's system configuration.

Display Metrics:

The display provides real-time information including:

• Speed: Current riding speed.
• Battery: Remaining battery level.
• PAS (Pedal Assist System): Current assist level (5 PAS modes available).
• ODO (Odometer): Total distance traveled.
• TRIP: Distance traveled for the current trip.
• VOL (Voltage): Current system voltage.
• CUR (Current): Current draw.
• Headlight Indicator: Shows if the headlight is on.
• Error Warning: Displays fault codes if any issues are detected.

Adjusting Speed Settings:

To change the speed settings:

1. Long press the '+' and '-' keys simultaneously to enter the menu.
2. Short press the power button to navigate to parameter P08.
3. Once in P08, use the '+' key to set your desired speed.
4. After adjusting, long press the '+' and '-' keys simultaneously to save the settings and exit the menu.

Type-C Charging:

The display features a Type-C interface (5V/500mA) that can be used for emergency charging of mobile phones or other small electronic devices.

6. User Tips

• App Compatibility: For models supporting Bluetooth connectivity (e.g., H8, M5C-2), the companion app is compatible with both Apple and Android mobile operating systems.
• Speed Limit: If your e-bike's controller has a built-in speed limit, the display will only show the speed up to that limit. The display can only lift speed limits if the limitation originates from the display itself. Some specialized versions of the display may support an immediate 25 km/h speed limit.

7. Troubleshooting

Common Issues and Solutions:

• Display Not Working / Abnormal Operation:
  • Protocol Mismatch: The F4 display requires a controller with UART 2 protocol. If your controller uses a different protocol (e.g., Bafang, KDS), the display will not function correctly. Verify your controller's protocol by checking its appearance, manual, or contacting the controller's seller.
  • Improper Connection: Ensure all cables, especially the 7-Core Connector, are securely and correctly plugged in.
• Speed Display Inaccurate or Limited:
  • Controller Speed Limit: If your e-bike's controller has a pre-set speed limit, the display will reflect this limit. The display cannot override a speed limit imposed by the controller.
  • Display Speed Setting: Refer to Section 5, 'Adjusting Speed Settings', to ensure the display's internal speed parameter (P08) is set correctly.

Note: Due to the specific nature of e-bike components, we cannot guarantee compatibility with all e-bike models. It is crucial to confirm your controller's protocol (UART 2) before purchase.

8. Maintenance

To ensure the longevity and optimal performance of your Haytrix F4 display, follow these maintenance guidelines:

• Cleaning: Gently wipe the display screen and body with a soft, damp cloth. Avoid using abrasive cleaners or solvents that could damage the screen or casing.
• Protection: Keep the display dry and protect it from direct exposure to heavy rain or extreme weather conditions. While designed for outdoor use, excessive moisture can cause damage.
• Storage: When not in use for extended periods, store the e-bike and display in a cool, dry place away from direct sunlight.
• Cable Inspection: Periodically check all cables and connectors for any signs of wear, fraying, or damage. Ensure connections remain secure.

9. Warranty & Support

For any technical assistance, warranty claims, or further inquiries regarding your Haytrix F4 E-Bike LCD Screen Speedometer, please contact the seller or manufacturer directly. Provide your product model and any relevant purchase information when seeking support.