1. Introduction
This manual provides comprehensive instructions for the installation, operation, and maintenance of your Sigma Originals BC 5.0 Wireless ATS Bike Computer. Please read this manual carefully before using the device to ensure proper functionality and longevity.
2. Package Contents
Verify that all components are present in the package:
- Sigma BC 5.0 Wireless ATS Bike Computer Unit
- ATS Speed Transmitter (Wireless Sensor)
- Handlebar/Stem Mount
- Spoke Magnet
- Mounting Ties (Zip Ties)
- CR2032 Battery (pre-installed or separate)
Image: The package includes the Sigma BC 5.0 bike computer, a wireless speed sensor, a handlebar mount, a spoke magnet, and zip ties for installation.
3. Setup and Installation
3.1 Battery Installation
The device uses a CR2032 lithium metal battery. Ensure the battery is correctly inserted with the positive (+) side facing up. The battery is designed for long life, typically over 2 years.
Image: View of the battery compartment on the rear of the Sigma BC 5.0, showing the CR2032 battery and its cover. The device is designed for a battery life of 2+ years.
3.2 Mounting the Bike Computer and Sensor
The Sigma BC 5.0 is designed for handlebar mounting. The wireless speed sensor should be mounted on the front fork, aligned with the spoke magnet on a spoke.
- Attach the handlebar mount securely to your bicycle's handlebar or stem using the provided zip ties.
- Mount the ATS speed transmitter (sensor) to the front fork using zip ties. Ensure it is positioned so that the spoke magnet passes within 5mm of the sensor's marked area.
- Attach the spoke magnet to a spoke on your front wheel. Adjust its position to align with the sensor.
- Slide the BC 5.0 computer unit onto the handlebar mount until it clicks into place.
4. Operation
4.1 Display and Functions
The Sigma BC 5.0 features a clear, easy-to-read display. It offers 5 core functions:
- Current Speed (KMH)
- Distance (KM)
- Total Distance
- Ride Time
- Clock
Image: The main display of the Sigma BC 5.0 bike computer, showing a large current speed reading (17.2 KMH) and a smaller distance reading (25.69 KM).
Image: A composite image showing four Sigma BC 5.0 units, each displaying one of its five functions: current speed, trip distance, total distance, ride time, and clock.
4.2 Basic Operation
The BC 5.0 typically has a single button for operation. Pressing the button cycles through the available functions. A long press may reset trip data or enter settings mode.
Refer to the quick start guide included with your product for specific button press sequences for setting wheel size, time, and resetting trip data.
5. Maintenance
5.1 Cleaning
Clean the bike computer and sensor with a damp cloth. Do not use abrasive cleaners or solvents. The device is weatherproof (IP54 rated), but avoid submerging it in water.
Image: The Sigma BC 5.0 bike computer on a handlebar, covered in water droplets, illustrating its weatherproof capability.
5.2 Battery Replacement
When the display becomes dim or functions become erratic, it may be time to replace the CR2032 battery. Carefully open the battery compartment on the back of the unit, replace the battery, and ensure the cover is securely fastened to maintain water resistance.
6. Troubleshooting
- No Speed Display:
- Check battery in computer and sensor.
- Ensure sensor and magnet are correctly aligned and within 5mm distance.
- Verify the sensor is securely mounted and not loose.
- Incorrect Speed/Distance:
- Confirm the correct wheel size is programmed into the computer.
- Check magnet and sensor alignment.
- Display Blank/Flickering:
- Replace the computer's battery.
- Ensure battery is inserted correctly.
7. Specifications
| Feature | Detail |
|---|---|
| Model Number | 05211 |
| Functions | 5 (Current Speed, Distance, Total Distance, Ride Time, Clock) |
| Connectivity | Wireless (ATS) |
| Battery Type | CR2032 Lithium Metal (included) |
| Battery Life | 2+ Years |
| Dimensions (Product) | 3.8 x 1.3 x 5.1 cm |
| Weight | 24 g |
| Display Size | 1.7 inches (diagonal) |
| Water Protection | IP54 (Weatherproof) |
| Mounting Type | Handlebar Mount |
Image: A visual representation of the Sigma BC 5.0's dimensions, indicating a 1.7-inch screen, 10mm depth, 51mm height, and 38mm width.
8. Warranty and Support
Sigma products are manufactured with high quality standards. For warranty information and technical support, please refer to the official Sigma Sport website or contact their customer service directly. Keep your proof of purchase for warranty claims.
