1. Introduction
The YIDIAN TSUN-M-30L is a high-quality magnetic grid displacement digital angle display designed for precise angle measurement in various industrial applications, including woodworking, stone, and glass machinery. This manual provides essential information for the safe and effective installation, operation, and maintenance of your TSUN-M-30L unit.
2. Package Contents
Please check the package carefully to ensure all components are present and undamaged:
- TSUN-M-30L Digital Angle Display Unit
- Magnetic Grid Displacement Sensor
- Connecting Cable(s) for sensor and power

Figure 2.1: TSUN-M-30L Display Unit and Magnetic Sensor with Cable

Figure 2.2: Magnetic Sensor and Connecting Cable
3. Specifications
| Feature | Detail |
|---|---|
| Model Number | TSUN-M-30L |
| Brand Name | YIDIAN |
| Origin | Mainland China |
| Measurement Function | Angle Display (Protractor) |
| Measurement Range | ±99.9 degrees |
| Certification | NONE |
| Package Dimensions (L x W x H) | 20 cm x 11 cm x 10 cm |
| Package Weight | 0.3 kg |

Figure 3.1: Product label on the back of the display unit indicating model and measurement range.
4. Setup and Installation
Follow these steps to install your TSUN-M-30L digital angle display:
- Mount the Display Unit: Identify a suitable location on your machinery for the display unit. Ensure it is easily visible and accessible for operation. The unit is designed for panel mounting; cut an appropriate opening and secure it using screws or clips (not included, typically part of machine integration).
- Mount the Magnetic Sensor: Position the magnetic grid displacement sensor in a location where it can accurately measure the desired angle or displacement. Ensure the sensor is securely fastened and aligned with the moving part of the machinery.
- Connect the Cables:
- Connect the sensor cable to the corresponding port on the back of the TSUN-M-30L display unit. The ports are labeled for clarity.
- Connect the power cable to the display unit. Ensure the power source matches the unit's requirements (typically 5V DC, though not explicitly stated in provided data, standard for such devices).
- Secure Connections: Double-check all connections to ensure they are firm and properly seated to prevent accidental disconnections during operation.

Figure 4.1: Rear view of the display unit with connector ports (labeled '0-5V CONNECTOR' and '0-5V').
5. Operation
The TSUN-M-30L features a simple three-button interface for ease of use:

Figure 5.1: Front panel of the TSUN-M-30L with control buttons.
- Power On: Once connected to power, the unit should automatically power on and display the current angle reading.
- ZERO/Δ Button: Press this button to set the current position as the zero reference point for your measurements. This is useful for relative measurements.
- CLR/L Button: This button is typically used to clear the current reading or to switch between different measurement modes or units (e.g., degrees, minutes, seconds, or different measurement types if available). Refer to specific application requirements for its exact function.
- END/◀ Button: This button may be used to confirm a setting, exit a menu, or navigate through options. Its precise function can vary depending on the operational context.
- Taking Measurements: As the machinery moves, the display will show the real-time angle or displacement measured by the magnetic sensor.
Video 5.1: Product overview demonstrating the TSUN-M-30L unit and its components.
6. Maintenance
To ensure the longevity and accuracy of your TSUN-M-30L digital angle display, follow these maintenance guidelines:
- Cleaning: Use a soft, dry cloth to clean the display unit and sensor. Avoid using abrasive cleaners, solvents, or excessive moisture, which can damage the electronic components.
- Storage: When not in use for extended periods, store the unit in a clean, dry environment, away from direct sunlight and extreme temperatures.
- Inspection: Periodically inspect the cables for any signs of wear, cuts, or damage. Ensure all connections remain secure.
- Avoid Impact: Protect the unit from physical shocks or impacts, as these can affect its calibration and functionality.
7. Troubleshooting
If you encounter issues with your TSUN-M-30L, refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Display does not turn on | No power or loose power connection | Check power supply and ensure power cable is securely connected. |
| Inaccurate readings | Sensor misalignment or damage; magnetic interference | Verify sensor alignment. Check for strong magnetic fields nearby. Recalibrate by pressing ZERO/Δ. |
| No reading displayed | Sensor not connected or damaged cable | Ensure sensor cable is firmly connected to the display unit. Inspect cable for damage. |
| Buttons unresponsive | Unit frozen or internal error | Try power cycling the unit (turn off and on). If issue persists, contact support. |
8. User Tips
- Cable Inclusion: The connecting cables for the sensor and power are included with the unit, ensuring you have the necessary components for immediate setup.
9. Warranty and Support
For any technical assistance, warranty claims, or further inquiries, please contact your seller or the manufacturer directly. Keep your purchase receipt as proof of purchase.