A Level Switch Should Do More Than Switch

Liquid level measurement is often treated as a simple task.

Either liquid is present, or it is not.

But in industrial refrigeration, a level switch is often the first line of defence against operational problems. Incorrect level detection can lead to pump failures, liquid carryover, unstable operation and unnecessary service calls.

That is why reliability matters.

At HB Products, our capacitive Liquid Level Switches are developed specifically for industrial refrigeration—not adapted from other industries.

Because refrigeration systems have different requirements.

Built for Refrigeration. Not Modified for It.

Many level switches on the market are designed for general industrial applications and later adapted for refrigeration systems.

We believe the opposite approach makes more sense.

Our switches are engineered specifically for refrigeration environments and are designed to handle the operating conditions found in ammonia, CO₂, hydrocarbon and other industrial refrigeration systems.

The result is reliable level detection without compromise.

Reliable Operation Across Extreme Conditions

Industrial refrigeration does not operate under laboratory conditions.

Equipment is exposed to temperature fluctuations, moisture, condensation and demanding operating environments.

Depending on the selected version, our Liquid Level Switches operate in temperatures from -60°C to +145°C.

Integrated heating elements protect the electronics against condensation, while specially designed electronic units ensure stable operation in wet and cold environments.

Because a level switch that fails under harsh conditions is not much use when you need it most.

Designed to Simplify Service and Maintenance

Maintenance should not require system evacuation.

Our split-design construction allows the electronic module to be replaced without opening the refrigeration system. This significantly reduces service time and eliminates unnecessary refrigerant handling.

For operators and service technicians, this means faster troubleshooting and lower maintenance costs.

One Platform. Multiple Refrigerants.

Industrial refrigeration systems rarely look the same.

Some operate with ammonia. Others use CO₂, hydrocarbons or special process fluids. In many systems, operators also need to detect interfaces between two liquids, such as oil and ammonia or oil and water.

Our product range covers all common refrigeration liquids and can accurately detect levels in applications involving two immiscible liquids.

This allows a single technology platform to be used across multiple system designs and refrigerants.

Flexible Integration into Existing Systems

Control systems vary from installation to installation.

That is why all HB Products Liquid Level Switches are available with both AC and DC supply options, including 24 V NPN/PNP outputs and solid-state solutions.

Whether the application is a simple alarm function, pump control or advanced process automation, integration is straightforward.

Plug-and-Play When You Need It. Customization When You Want It.

Some applications require fast installation.

Others require precise tuning.

Our switches support both approaches.

For standard applications, installation can be completed using factory settings. For more demanding operating conditions, parameters can be adjusted using the HB Tool, allowing the switch to be configured specifically for the process.

This ensures reliable operation regardless of application complexity.

Good Refrigeration Control Starts with Reliable Measurements

A level switch may seem like a small component.

But its impact on system reliability is significant.

Accurate level detection protects equipment, improves operational stability and provides the information needed to control refrigeration systems safely and efficiently.

Because when the measurement is wrong, every decision that follows is wrong as well.