The WL420 hydrostatic level transmitter is a submersible sensor designed for continuous liquid level monitoring in a wide range of applications. Its robust construction, versatile configuration options, and affordability make it a compelling choice for engineers seeking reliable level measurement on a restricted budget.  

How it Works

The WL420 operates on the principle of hydrostatic pressure. It measures the pressure exerted by the liquid column above the sensor, which is directly proportional to the liquid level. This pressure is then converted into a 4-20mA analogue signal, enabling easy integration with various control systems, data loggers, and displays.

Versatility in Application

One of the key strengths of the WL420 is its adaptability to diverse environments. It can be used for level monitoring in:

• Water and wastewater: Monitoring levels in tanks, reservoirs, wells, and sumps.  
• Industrial processes: Measuring levels in tanks containing various liquids, including chemicals and fuels.
• Environmental monitoring: Tracking water levels in rivers, lakes, and groundwater.  
• Agriculture: Monitoring irrigation systems and tank levels.

Cost-Effectiveness without Compromise

The WL420 proves that accurate level measurement doesn’t have to come with a hefty price tag. Its cost-effective design makes it accessible for a wide range of projects, from small-scale installations to large industrial applications. Despite its affordability, the WL420 doesn’t skimp on features or quality.

Key Features and Benefits:

• Submersible and robust: The sensor is housed in a durable 316L stainless steel casing, ensuring reliable operation even in harsh conditions. It’s designed to withstand submersion in various liquids and is IP68 rated for protection against dust and water ingress.
• Wide measurement range: The WL420 offers various measurement ranges, from 1 to 100 mH2O, catering to diverse application needs.
• Vented cable for accuracy: The inclusion of a vented cable ensures accurate readings by compensating for atmospheric pressure changes.  A weather proof breather box is available for venting at the monitored location, ensuring the reference pressure is near the sensor and not in a distance monitoring room, ensuring the best accuracy.
• Easy installation and configuration: The compact size and straightforward design of the WL420 simplify installation. The cable length can be customized at the time of purchase or even adjusted in the field, providing flexibility for different setups.  
• Compatibility with various systems: The 4-20mA output signal allows seamless integration with PLCs, SCADA systems, data loggers, and other industrial automation equipment.  

Conclusion

The WL420 hydrostatic level transmitter offers a compelling combination of affordability, versatility, and reliability. Its robust design, wide measurement range, and ease of use make it a practical choice for engineers seeking a cost-effective solution for accurate liquid level monitoring in a variety of applications.