Details

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Technical data: HBSR

The HBSR is a Level Switch designed for detecting ammonia and brine refrigerants, ideal for industrial applications where high pressure and low temperatures are common. It is typically installed in refrigerant vessels, pump separators, or heat exchangers.

Features:
 

• Low-temperature operation: Specifically built to function in low temperatures, with two versions to accommodate different applications:

  • One type with a liquid temperature range of -40 to 50°C (-40°F to 122°F) for refrigeration systems.

  • A second type for heat pumps with a liquid temperature range of 50 to 80°C (122°F to 176°F).

• Pressure tolerance: Rated for pressures up to 100 bar (1450 psi).

• Power supply: The switch operates on a 24V AC/DC power supply.

• Split design: Simplifies installation and diagnostics; electronic parts can be removed with two screws.

• LED indicators: Provides clear visual feedback when refrigerant is detected.

Applications:

Connection diagram:

 

Drawing:

Specifications:

Power supply
Voltage	24 V AC/DC + 10%
Current consumption	< 200 mA
Max. current output	Max 50 mA
Plug connection	ISO4400/DIN 43650 - 4 pins
Output
Transistor output	PNP or NPN
Contact function	NC or NO
Environmental conditions
Ambient temperature	-30...+50°C
Refrigerant temperature	-40..+50°C/+50..+80°C (Std./Heat Pump Version)
Max pressure	100 bar
Protection degree	IP54 *
Vibrations	IEC 60068-2-6 (4g)
Mechanical specifications
Thread connection	3/4”
Material - liquid parts	AISI 304 / PTFE
Material- electronic parts	Nylon 6 (PA)
Dimensions	210x52x40
Weight	470 g
House design	Front
Approvals
EMC test	EN 61000-2
*For outdoor and low temperature application use low temperature type with built-in heater