What is a liquid level gauge？

A liquid level gauge, also known as a liquid level sensor or meter, is a device designed to measure the height or volume of liquids in various containers or environments.

It plays a critical role in industries ranging from water management to industrial processes by providing real-time data for monitoring, control, and safety purposes. Among the diverse types of liquid level gauges, the submersible liquid level transmitter stands out for its ability to operate directly in liquid environments, offering accuracy and reliability even in harsh conditions.

Product Introduction: RKL-01 Submersible Liquid Level Transmitter

The RKL-01 Submersible Liquid Level Transmitter is a high-precision water level sensor engineered for submersible applications.

At its core is a stainless steel isolation diaphragm with a diffusion silicon pressure core body, ensuring durability and resistance to corrosion. The pressure core body undergoes laser trimming resistor technology, providing wide-temperature compensation for both zero-point and sensitivity, which guarantees stable performance across varying thermal conditions (-40°C to +80°C operating temperature, with compensation from -10°C to 70°C).  

Key technical specifications include:  

- Measuring Range: 0–0.5m to 200m H₂O or 0–5kPa to 2MPa, catering to diverse depth requirements.  

- Output Options: 4–20mA, 0–5V, 0–10V, and RS485, enabling compatibility with different monitoring systems.  

- Power Supply: 10–30VDC (24V typical), ensuring flexibility in power sources.  

- Accuracy: Total accuracy ranges from 0.1%FS to 0.5%FS, with long-term stability of 0.1%FS/year (typical) and 0.2%FS/year (maximum), making it suitable for precision-critical applications.  

- Ingress Protection: IP68 full waterproofing, allowing prolonged submersion without damage.  

- Material: The sensor uses 316L stainless steel, while the housing is 304SS (316L optional).  

- Cable: A PUR atmospheric pressure compensation cable with a polymer waterproof plug ensures airtight sealing and pressure balance, critical for accurate measurements.  

The transmitter also features fast response times, strong interference resistance, and a wide temperature compensation range, making it reliable in dynamic and challenging settings.  

Distinctions from Other Liquid Level Gauges  

The RKL-01 submersible water level sensor is versatile, fitting into multiple sectors:  

- Environmental Monitoring: Groundwater level tracking in wells, river flow management, and reservoir monitoring to support flood control and water resource planning.  

- Wastewater and Sewage Systems: Monitoring liquid levels in urban sewage networks and wastewater treatment plants to optimize flow and prevent overflows. - Agriculture: Irrigation systems rely on the RKL-01 to measure water levels in ponds or tanks, ensuring efficient water usage and crop sustainability.  

- Industrial Processes: Monitoring liquids in chemical tanks, bioreactors, and water treatment facilities, where corrosion resistance and accuracy are critical.  

- Civil Engineering: Applications in dams and construction sites to assess water levels and ensure structural safety.    

Conclusion  

The RKL-01 Submersible Liquid Level Transmitter exemplifies the advancements in liquid level meter technology, combining robust design, precision engineering, and versatility. As a key tool in water management, industrial processes, and environmental monitoring, it addresses the challenges of measuring liquid levels in demanding environments.

With features like wide-temperature compensation, corrosion resistance, and multiple output options. Whether used in a small irrigation pond or a large industrial tank, this sensor delivers the accuracy and durability required to meet modern liquid level measurement needs.