Introduction
This manual provides detailed instructions for the installation, operation, and maintenance of the Frdhee KD-2PS-L Pedal Assist Sensor. This sensor is designed to enhance your electric bicycle riding experience by providing efficient power assistance.
The KD-2PS-L is a one-piece assistant sensor featuring 12 magnets and a double Hall sensor within its housing, ensuring accurate and responsive pedal assistance.
Product Overview
Image: The Frdhee KD-2PS-L Pedal Assist Sensor, showing the main sensor unit and its connecting cable with a 3-pin waterproof connector.
Image: Close-up of the waterproof joint on the pedal assist sensor cable, highlighting its robust design for outdoor use.
Key Features:
- Superior Performance: One-piece assistant sensor with 12 magnets and a double Hall sensor for accurate and responsive pedal assistance.
- Practical and Convenient: Detects riding activity and is designed for left-side mounting on electric bicycles.
- Upgraded Design: 12-magnet configuration provides greater accuracy and responsiveness compared to other sensors, ensuring smooth power support.
- Premium Material: Constructed from high-quality PC plastic for durability, stability, and long service life.
- Waterproof Cable: Ensures stable transmission and reliable performance in various conditions.
Specifications
Image: Diagram illustrating the technical specifications of the Frdhee KD-2PS-L sensor, including weight, voltage, output signal, wire length, duty cycle, and installation direction.
Image: Detailed dimensional drawing of the pedal assist sensor, showing its length, width, and height in both centimeters and inches.
| Attribute | Value |
|---|---|
| Model Number | KD-2PS-L |
| Weight | 35g |
| Voltage | 4.3V-5V |
| Output Signal | Unidirectional pulse |
| Length of Wire | 1m |
| Duty Cycle | 20%-60% |
| Installation Direction | Left |
| Cable Color Definition | Red: 5V, White: Power assist signal, Black: GND |
| Material | Polycarbonate |
| Measuring Range | 20 - 120 RPM |
| Mounting Type | Bicycle Mount |
Image: Diagram showing the front view of the 3-pin public end waterproof connector, with pin definitions for Red (5V), White (power assist signal), and Black (GND).
Installation Guide
The Frdhee KD-2PS-L pedal assist sensor is designed for easy installation on the left side of your electric bicycle's bottom bracket. Follow these steps carefully:
Image: A four-step visual guide demonstrating the installation process of the pedal assist sensor on an ebike's left crank arm.
- Step 1: Remove the Crank
Carefully remove the left crank arm from your bicycle's bottom bracket. This will expose the spindle where the sensor needs to be installed. - Step 2: Install PAS Sensor in the Left Axis
Slide the KD-2PS-L pedal assist sensor onto the left side of the bottom bracket spindle. Ensure it is seated correctly and securely. - Step 3: Install the Crank and Tighten It
Reinstall the left crank arm onto the spindle. Make sure to tighten the crank bolt securely to prevent any looseness during operation. - Step 4: Connect Wiring and Test
Connect the sensor's waterproof cable to your ebike's controller or display unit. Ensure the connection is firm. Once connected, test the pedal assist function to confirm proper operation.
Important: Always ensure your ebike's power is off before performing any installation or wiring. If you are unsure about any step, consult a professional bicycle mechanic.
Operation
The Frdhee KD-2PS-L pedal assist sensor operates by detecting the rotation of your bicycle's pedals. When you begin pedaling, the sensor sends a signal to your ebike's controller, which then activates the motor to provide assistance.
How Pedal Assist Works:
- The 12 magnets within the sensor provide precise detection of pedal movement.
- The double Hall sensor ensures accurate and responsive signal transmission to the ebike's system.
- The sensor's output signal is a unidirectional pulse, indicating pedal rotation.
- The system provides power assistance based on your pedaling, making your ride smoother and more efficient.
The sensor is designed to work seamlessly with compatible ebike systems, providing a dynamic riding experience. The measuring range of 20-120 RPM ensures effective assistance across a typical pedaling cadence.
Maintenance
The Frdhee KD-2PS-L pedal assist sensor is built with durable PC plastic and features a waterproof cable, requiring minimal maintenance. However, regular checks can ensure its longevity and optimal performance.
General Maintenance Tips:
- Cleaning: Periodically wipe the sensor and its cable with a damp cloth to remove dirt and debris. Avoid using harsh chemicals.
- Cable Inspection: Regularly inspect the cable for any signs of wear, cuts, or damage. Ensure the waterproof connector is clean and free of corrosion.
- Secure Mounting: Check that the sensor remains securely mounted on the bottom bracket. Any looseness can affect its accuracy.
- Environmental Protection: While the sensor is dustproof and waterproof, prolonged exposure to extreme conditions (e.g., submersion, extreme temperatures) should be avoided to maximize lifespan.
Image: Close-up views highlighting the high-quality, dustproof, waterproof, and temperature-resistant shell of the sensor, and the stable, secure, and reliable waterproof cable.
Troubleshooting
If you experience issues with your Frdhee KD-2PS-L pedal assist sensor, refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| No pedal assist | Loose or disconnected cable; Sensor not properly aligned; Faulty sensor. | Check all cable connections, ensuring they are secure. Verify the sensor is correctly positioned on the spindle. If issues persist, the sensor may need replacement. |
| Intermittent assist | Partial cable damage; Sensor misalignment; Debris interfering with magnets. | Inspect the cable for damage. Re-align the sensor. Clean any debris from the sensor and magnet area. |
| Assist too strong/weak | Ebike controller settings. | The sensor provides a signal; the ebike controller determines assist level. Refer to your ebike's controller manual for adjusting assist settings. |
If you are unable to resolve the issue using these steps, please contact Frdhee customer support or a qualified ebike technician.
Warranty and Support
Warranty Information:
Frdhee products are manufactured to high quality standards. For specific warranty terms and conditions, please refer to the documentation included with your purchase or visit the official Frdhee website. The product comes with a satisfaction guarantee as per the manufacturer's policy.
Customer Support:
For technical assistance, troubleshooting, or warranty claims, please contact Frdhee customer support. You can typically find contact information on the product packaging, the official Frdhee website, or through your point of purchase.
As stated by the manufacturer: "All our product offer return policy or money back guarantee, if you have any problem about your purchase, pls communicate with us by Email, we are always here to make everything right for you."