HBLT
Reliable liquid level measurement in high temperature applications
Written by: Michael Elstrøm
Case example: Exodraft Energy
Accurate liquid level measurement can be challenging in applications where temperatures vary significantly. In heat recovery systems and similar installations, sensors must operate reliably across both low and high temperature ranges.
The challenge
Exodraft Energy required a liquid level sensor for ammonia containers that could operate across a wide temperature range, including temperatures up to 70°C. Previous solutions did not meet operational expectations, particularly in terms of stability and reliability over time.
The solution
After evaluating available options, Exodraft Energy selected the HBLT-A3 liquid level sensor.
The sensor was installed in May 2023 and integrated into the existing system with support from HB Products.
Results in operation
Following installation, the sensor has delivered stable and precise measurements across the required temperature range.
The system has operated without reported issues since implementation, and integration was completed without complications.
User feedback
According to Exodraft Energy, both product performance and technical support contributed to a successful implementation.
Key characteristics of the HBLT-A3 sensor
The HBLT-A3 is a capacitive liquid level sensor designed for industrial and refrigeration applications.
- Suitable for refrigerant vessels, heat pumps and industrial systems
- Operates across a wide temperature range (-60°C to 110°C)
- Not sensitive to temperature variations
- Can be used in turbulent environments such as marine applications
Installation and operation
The sensor can be installed in vessels, containers and standpipes. A split design allows simplified installation, maintenance and replacement of electronic components without changing the full unit.
Control and integration
The sensor includes a built-in microprocessor and can be configured for controlling modulating valves, stepper valves or PWM valves. The output can be integrated into control systems for continuous monitoring and regulation of liquid levels.
Summary
This case demonstrates the importance of selecting a sensor that matches the operating conditions of the application. In this case, reliable performance across a wide temperature range was achieved with a solution designed for such conditions.
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