1. Introduction
This manual provides detailed instructions for the installation, operation, and maintenance of your DC 5V-12V Vibration Sensor Anti-theft Alarm System. This highly sensitive and reliable vibration detector is designed for a wide range of applications, including car, motorcycle, and bike anti-theft systems, as well as other monitoring alarm sensors. Its adjustable sensitivity allows for customization to suit various security needs.
2. Safety Information
- Ensure the power supply voltage is within the specified range (DC 5V-12V). Exceeding this range may damage the device.
- Disconnect power before performing any installation or maintenance to prevent electrical shock.
- Avoid exposing the sensor to extreme temperatures or moisture, which can affect performance and longevity.
- Handle the device with care; the internal components are sensitive.
3. Package Contents
- 1 x Vibration Detector Sensor
4. Specifications
| Feature | Specification |
|---|---|
| Output Way | Negative Pulse |
| Working Voltage | DC 5V-12V (Recommended 12V, Minimum operating voltage >5V) |
| Working Current | 10mA (at 12V) |
| Output Signal | Detects 1-second Negative Pulse Per Vibration |
| Sensitivity | Adjustable |
| Working Temperature | -10°C to +60°C |
| Country of Manufacture | China |
| Material | Electronic Parts |
| Net Weight | 40g |
| Dimensions (L*W*H) | 50 x 40 x 20mm / 2 x 1.6 x 0.8 inch |
| Lead Length | 1M / 3.3Ft |
| Termination Type | Cable with XH2.54-3P Connector |
5. Setup
5.1 Wiring
The vibration sensor connects via a cable with an XH2.54-3P connector. This connector typically has three pins:
- Power Input: Connect to a DC 5V-12V power source.
- Ground: Connect to the common ground of your system.
- Signal Output: This pin provides a 1-second negative pulse upon detecting vibration. Connect this to the input of your alarm system or microcontroller.
Ensure correct polarity when connecting the power supply. Refer to your alarm system's documentation for specific wiring requirements.
5.2 Mounting
Mount the sensor securely to a stable surface on the vehicle or object you wish to protect. Choose a location where vibrations are easily transmitted to the sensor. Avoid mounting it directly on engine components or areas with constant, non-threatening vibrations.
5.3 Sensitivity Adjustment
The sensor features an adjustable sensitivity screw. To adjust:
- Locate the small screw labeled 'Adjust Sensitivity' on the sensor casing (refer to Figure 1).
- Use a small screwdriver to turn the screw.
- Turning clockwise generally increases sensitivity (detects lighter vibrations).
- Turning counter-clockwise generally decreases sensitivity (requires stronger vibrations).
- Test the sensitivity after each adjustment by gently tapping the protected object to ensure it triggers the alarm as desired without false alarms.
6. Operating Instructions
Once properly installed and powered, the vibration sensor operates automatically. When a vibration exceeding the set sensitivity threshold is detected, the sensor will output a 1-second negative pulse on its signal pin. This pulse is intended to trigger a connected alarm system or control unit.
- Arming: The sensor is continuously active when powered. Your external alarm system will determine when to arm/disarm based on its own logic.
- Triggering: Any physical shock or vibration to the mounted surface that meets the sensitivity threshold will cause the sensor to trigger.
7. Maintenance
- Cleaning: Keep the sensor casing clean and free from dust and debris. Use a soft, dry cloth for cleaning. Do not use harsh chemicals or abrasive materials.
- Inspection: Periodically check the wiring and mounting for any signs of wear, corrosion, or looseness. Ensure connections are secure.
- Environmental Protection: While designed for vehicle use, avoid direct exposure to heavy rain or extreme environmental conditions if possible, unless the installation area is specifically protected.
8. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Sensor not triggering | No power; Incorrect wiring; Sensitivity too low; Faulty sensor | Check power supply and connections; Verify wiring polarity; Increase sensitivity; Replace sensor if faulty |
| False alarms | Sensitivity too high; Mounting location too noisy; External vibrations | Decrease sensitivity; Relocate sensor to a more stable area; Identify and mitigate external vibration sources |
| Intermittent triggering | Loose wiring; Unstable mounting; Fluctuating power supply | Check all connections; Securely mount the sensor; Ensure stable power supply |
9. User Tips
- Optimal Placement: For motorcycles and bikes, consider mounting the sensor near the frame or under the seat for best vibration detection. For cars, inside the door panel or under the dashboard can be effective.
- Gradual Sensitivity Adjustment: When adjusting sensitivity, make small changes and test thoroughly to find the perfect balance between detecting threats and avoiding false alarms.
- Integration: This sensor provides a trigger signal. For a complete anti-theft solution, integrate it with a siren, light, or a remote notification system.
10. Warranty and Support
This product is designed for reliable performance. For any issues or technical support, please contact your retailer or the manufacturer. Keep your purchase receipt as proof of purchase. Specific warranty terms may vary by region and seller.
