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Useful info

Oil Level Switch - Low Temperature

Technical data: HBSO1-LT & HBSO2-LT

The HBSO1-LT and HBSO2-LT are low-temperature level switches designed for detecting common lubricating oils in refrigeration systems. These switches are ideal for low-temperature applications, with the HBSO1 suited for PAO and mineral oils, and the HBSO2 for PAG and POE oils. Typically installed on compressors and oil separators, they are also suitable for other points in the oil system.

Key features

  • Liquid temperature range: Operate across a temperature range of -30°C to 90°C (-22°F to 194°F).
  • Pressure tolerance: Rated for pressures up to 150 bar (2175 psi).
  • Special mechanical design: The mechanical component is designed to drain stiff and sticky oil at low temperatures on the low-pressure side of a cooling plant.
  • Power supply: The switch operates on a 24 V AC/DC power supply.
  • Split design: Simplifies installation and diagnostics; electronic parts can be removed with two screws.
  • LED indicators: Clear LED indication for easy status checking.

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Product features

Proven and reliable sensor with NPN/PNP transistor output and NO/NC contact function.

The NO/NC term refers to the state of the contact in "dry" condition, when not influenced by the oil.
The switch is special developed for low temperature applications.
Oil temperature range -30°...+90°C.
The mechanical part is made with a special open design for draining the stiff & sticky oil at low temperatures.

Proven and reliable sensor with NPN/PNP transistor output and NO/NC contact function. 

The NO/NC term refers to the state of the contact in "dry" condition, when not influenced by the oil.
Split design which makes it easy to install and make diagnostic. The electronic part can easily be disassembled by 2 screws.
Designed for the industrial refrigeration industry - max pressure up to 150 bar.
Clear LED indication.

Specifications

Connection diagram

electrical connection unicap

 

Drawing

HBSO LT MECHANICAL DIMENSIONS

Power supply
Voltage24 V AC/DC + 10%
Max current consumptionMax 200 mA
Plug connectionDIN 43650
Output
Transistor outputPNP or NPN
Contact functionNC or NO
Environmental conditions
Ambient temperature-30°...+50°C
Oil temperature-30°...+90°C
Max pressure150 bar
Protection degreeIP65
VibrationsIEC 60068-2-6 (4g)
Mechanical specifications
Thread connection3/4” NPT & 3/4" BSPP
Material (liquid parts)AISI 304 / PTFE
Material (electronic parts)Nylon 6 (PA)
Approvals
EMC testEN 61000-2
Indication
LED indication4 x red

Ordering code

OutputThread typeOrdering code
W. set screw connection - IP54
PNP / NO3/4" NPTHBSO1-PNP/NO-2-LT
PNP / NC3/4" NPTHBSO1-PNP/NC-2-LT
NPN / NO3/4" NPTHBSO1-NPN/NO-2-LT
NPN / NC3/4" NPTHBSO1-NPN/NC-2-LT
PNP / NO3/4" BSPPHBSO1-PNP/NO-6-LT
PNP / NC3/4" BSPPHBSO1-PNP/NC-6-LT
NPN / NO3/4" BSPPHBSO1-NPN/NO-6-LT
NPN / NC3/4" BSPPHBSO1-NPN/NC-6-LT
Spare parts for HBSO1-LT
Electronic part for HBSO1-PNP/NO-LT HBSO1-PNP/NO-EL-LT
Electronic part for HBSO1-PNP/NC-LT HBSO1-PNP/NC-EL-LT
Electronic part for HBSO1-NPN/NO-LT HBSO1-NPN/NO-EL-LT
Electronic part for HBSO1-NPN/NC-LT HBSO1-NPN/NC-EL-LT
PNP / NO3/4" NPTHBSO2-PNP/NO-2-LT
PNP / NC3/4" NPTHBSO2-PNP/NC-2-LT
NPN / NO3/4" NPTHBSO2-NPN/NO-2-LT
NPN / NC3/4" NPTHBSO2-NPN/NC-2-LT
PNP / NO3/4" BSPPHBSO2-PNP/NO-6-LT
PNP / NC3/4" BSPPHBSO2-PNP/NC-6-LT
NPN / NO3/4" BSPPHBSO2-NPN/NO-6-LT
NPN / NC3/4" BSPPHBSO2-NPN/NC-6-LT
Spare parts for HBSO2-LT
Electronic part for HBSO2-PNP/NO-LT HBSO2-PNP/NO-EL-LT
Electronic part for HBSO2-PNP/NC-LT HBSO2-PNP/NC-EL-LT
Electronic part for HBSO2-NPN/NO-LT HBSO2-NPN/NO-EL-LT
Electronic part for HBSO2-NPN/NC-LT HBSO2-NPN/NC-EL-LT
W. union connection - IP66
PNP / NO3/4" NPTHBSO1-U-PNP/NO-2-LT
PNP / NC3/4" NPTHBSO1-U-PNP/NC-2-LT
NPN / NO3/4" NPTHBSO1-U-NPN/NO-2-LT
NPN / NC3/4" NPTHBSO1-U-NPN/NC-2-LT
PNP / NO3/4" BSPPHBSO1-U-PNP/NO-6-LT
PNP / NC3/4" BSPPHBSO1-U-PNP/NC-6-LT
NPN / NO3/4" BSPPHBSO1-U-NPN/NO-6-LT
NPN / NC3/4" BSPPHBSO1-U-NPN/NC-6-LT
Spare parts for HBSO1-U-LT
Electronic part for HBSO1-U-PNP/NO-LT HBSO1-U-PNP/NO-EL-LT
Electronic part for HBSO1-U-PNP/NC-LT HBSO1-U-PNP/NC-EL-LT
Electronic part for HBSO1-U-NPN/NO-LT HBSO1-U-NPN/NO-EL-LT
Electronic part for HBSO1-U-NPN/NC-LT HBSO1-U-NPN/NC-EL-LT
PNP / NO3/4" NPTHBSO2-U-PNP/NO-2-LT
PNP / NC3/4" NPTHBSO2-U-PNP/NC-2-LT
NPN / NO3/4" NPTHBSO2-U-NPN/NO-2-LT
NPN / NC3/4" NPTHBSO2-U-NPN/NC-2-LT
PNP / NO3/4" BSPPHBSO2-U-PNP/NO-6-LT
PNP / NC3/4" BSPPHBSO2-U-PNP/NC-6-LT
NPN / NO3/4" BSPPHBSO2-U-NPN/NO-6-LT
NPN / NC3/4" BSPPHBSO2-U-NPN/NC-6-LT
Spare parts for HBSO2-U-LT
Electronic part for HBSO2-U-PNP/NO-LT HBSO2-U-PNP/NO-EL-LT
Electronic part for HBSO2-U-PNP/NC-LT HBSO2-U-PNP/NC-EL-LT
Electronic part for HBSO2-U-NPN/NO-LT HBSO2-U-NPN/NO-EL-LT
Electronic part for HBSO2-U-NPN/NC-LT HBSO2-U-NPN/NC-EL-LT

Downloads

Quick-guide-UK - HBSO-LT

Instruction manual - HBSO-LT

Drawing (STEP file) - HBSO-LT

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