1. Project Background
A circulating water tank at an industrial site is used for production water supply and reuse management. To ensure proper pump operation and smooth functioning of production equipment, continuous, real-time, and high-precision monitoring of the tank level is required. Since the water surface in the tank experiences fluctuations and may generate disturbance signals due to operational conditions, selecting a level meter that can resist surface interference and provide stable high-precision measurement is essential. Considering the product performance and project requirements, the client ultimately chose the KLD802 radar level meter for water tank level monitoring.
2. Measurement Challenges
- Fluctuating water surface and operational disturbances
- Requirement for high measurement accuracy ±1 mm
- Non-contact measurement preferred
- Continuous, real-time monitoring for integration with PLC/control system
- Low maintenance and long-term operational stability
3. Solution
The KLD802 radar level meter was installed on top of the water tank with a non-contact setup. The system provides accurate real-time liquid level data and stable measurement despite surface fluctuations.
3.1 Equipment Configuration
- KLD802 radar level meter main unit installed on a nearby bracket or instrument cabinet
- Radar probe fixed to the tank top via flange
- Measurement range set on-site: 0 ~ 10 m
- 4-20 mA analog output connected to the control system
- 24 V DC power supply
3.2 Key Technical Features
| Parameter | Description |
| Measurement Principle | Radar non-contact measurement |
| Installation Method | Top-mounted, non-contact |
| Output Signal | 4-20 mA analog |
| Measurement Range | 0 ~ 10 m |
| Accuracy | ±1 mm |
| Application Medium | Water / clean circulating water |
| Application Environment | Industrial water tanks, fluctuating surface |
3.3 Implementation Process
- Installation: Radar probe fixed on top of the tank, ensuring clear line of sight
- Operation: Continuous measurement, stable 4-20 mA output to PLC/control system
- Maintenance: Minimal inspection; simple calibration, no frequent maintenance required
4. Project Results
| Performance Indicator | Result |
| Measurement Accuracy | ±1 mm |
| Measurement Stability | Stable despite surface fluctuations |
| Installation & Commissioning | ~1.5 hours, no disruption to production |
| Maintenance Effort | Low |
| Data Availability | Continuous real-time signal |
5. Conclusion
The KLD802 radar level meter provided a high-precision, non-contact, and stable solution for industrial water tank level monitoring. Its strong anti-interference capability, ±1 mm accuracy, and integration with control systems make it suitable for industrial water tanks and other liquid storage scenarios requiring long-term, reliable monitoring.
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