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Useful info

Oil Level Switch

Technical data: HBSO

The HBSO range of Level Switches is designed to detect common lubricating oils in gas and air. Typically installed in compressors and oil separators, these switches can also be used in other locations where oil detection is required.

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Product features

  • Liquid temperature range: Operate across a temperature range of 0°C to 100°C (32°F to 212°F), with different models offering varying sensitivity levels.
    • The HBSO1 is a highly sensitive switch that suits most applications, including CO2 systems.
    • The HBSO2 is less sensitive, making it ideal for PAG oils and some POE oils.
    • For ammonia heat pumps and applications where normal switches are too sensitive, the HBSO1/MT and HBSO2/MT provide a lower sensitivity option.
    • If higher temperatures are required, the HBSO-SSR/HT, with adjustable switch points, is designed for temperatures above 80°C (176°F).
  • Pressure tolerance: Rated for pressures up to 150 bar (2175 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 visual feedback for status and operation.

Applications

HBSO1 RECIPRO application

 

HBSO1 RECIPROCATING COMPRESSOR

 

HBSO1 Screw compressor

 

Specifications

Connection diagram

electrical connection unicap

 

Drawing

HBSO 1 5

Thread type: 1/2" BSPP & NPT

 

HBSO 2 6

Thread type: 3/4" BSPP & NPT

 

 

HBSO-7

Thread type: 1 1/8" UNEF

Power supply
Voltage24 V AC/DC + 10%
Current consumption< 200 mA
Max current outputMax 50 mA
Plug connectionISO4400/DIN 43650
Output
Transistor outputPNP or NPN
Contact functionNC or NO
Environmental conditions
Ambient temperature-30...+50°C
Oil temperature0...90°C
Recommended oil temperature for HBSO0...60°C
Recommended oil temperature for HBSO-MT50...80°C
Max pressure150 bar
Protection degreeIP54 *
VibrationsIEC 60068-2-6 (4g)
Mechanical specifications
Thread connection1/2", 3/4” & 1 1/8"
Material (liquid parts)AISI 304 / PTFE
Material (electronic parts)Nylon 6 (PA)
Approvals
EMC testEN 61000-2
Indication
LED indication4 x red & 4 x green
Accessories
Compressor adapterHBS/ADAP/FLANGE
*For outdoor and low temperature application use low temperature type

Ordering code

OutputThread typeOrdering code
Oil Level Switches for Refrigeration Systems:
PNP / NO1/2" NPTHBSO1-PNP/NO-1
PNP / NC1/2" NPTHBSO1-PNP/NC-1
PNP / NO3/4" NPTHBSO1-PNP/NO-2
PNP / NC3/4" NPTHBSO1-PNP/NC-2
PNP / NO1/2" BSPPHBSO1-PNP/NO-5
PNP / NC1/2" BSPPHBSO1-PNP/NC-5
PNP / NO3/4" BSPPHBSO1-PNP/NO-6
PNP / NC3/4" BSPPHBSO1-PNP/NC-6
PNP / NO1 1/8" UNEFHBSO1-PNP/NO-7
PNP / NC1 1/8" UNEFHBSO1-PNP/NC-7
NPN / NO1/2" NPTHBSO1-NPN/NO-1
NPN / NC1/2" NPTHBSO1-NPN/NC-1
NPN / NO3/4" NPTHBSO1-NPN/NO-2
NPN / NC3/4" NPTHBSO1-NPN/NC-2
NPN / NO1/2" BSPPHBSO1-NPN/NO-5
NPN / NC1/2" BSPPHBSO1-NPN/NC-5
NPN / NO3/4" BSPPHBSO1-NPN/NO-6
NPN / NC3/4" BSPPHBSO1-NPN/NC-6
NPN / NO1 1/8" UNEFHBSO1-NPN/NO-7
NPN / NC1 1/8" UNEFHBSO1-NPN/NC-7
PNP / NO1/2" NPTHBSO2-PNP/NO-1
PNP / NC1/2" NPTHBSO2-PNP/NC-1
PNP / NO3/4" NPTHBSO2-PNP/NO-2
PNP / NC3/4" NPTHBSO2-PNP/NC-2
PNP / NO1/2" BSPPHBSO2-PNP/NO-5
PNP / NC1/2" BSPPHBSO2-PNP/NC-5
PNP / NO3/4" BSPPHBSO2-PNP/NO-6
PNP / NC3/4" BSPPHBSO2-PNP/NC-6
PNP / NO1 1/8" UNEFHBSO2-PNP/NO-7
PNP / NC1 1/8" UNEFHBSO2-PNP/NC-7
NPN / NO1/2" NPTHBSO2-NPN/NO-1
NPN / NC1/2" NPTHBSO2-NPN/NC-1
NPN / NO3/4" NPTHBSO2-NPN/NO-2
NPN / NC3/4" NPTHBSO2-NPN/NC-2
NPN / NO1/2" BSPPHBSO2-NPN/NO-5
NPN / NC1/2" BSPPHBSO2-NPN/NC-5
NPN / NO3/4" BSPPHBSO2-NPN/NO-6
NPN / NC3/4" BSPPHBSO2-NPN/NC-6
NPN / NO1 1/8" UNEFHBSO2-NPN/NO-7
NPN / NC1 1/8" UNEFHBSO2-NPN/NC-7
Spare parts for HBSO1 & HBSO2
Electronic part for HBSO1-PNP/NO HBSO1-EL/PNP/NO
Electronic part for HBSO1-PNP/NC HBSO1-EL/PNP/NC
Electronic part for HBSO1-NPN/NO HBSO1-EL/NPN/NO
Electronic part for HBSO1-NPN/NC HBSO1-EL/NPN/NC
Electronic part for HBSO2-PNP/NO HBSO2-EL/PNP/NO
Electronic part for HBSO2-PNP/NC HBSO2-EL/PNP/NC
Electronic part for HBSO2-NPN/NO HBSO2-EL/NPN/NO
Electronic part for HBSO2-NPN/NC HBSO2-EL/NPN/NC
Oil Level Switches for Heat Pumps:
PNP / NO1/2" NPTHBSO1-PNP/NO-1/MT
PNP / NC1/2" NPTHBSO1-PNP/NC-1/MT
PNP / NO3/4" NPTHBSO1-PNP/NO-2/MT
PNP / NC3/4" NPTHBSO1-PNP/NC-2/MT
PNP / NO1/2" BSPPHBSO1-PNP/NO-5/MT
PNP / NC1/2" BSPPHBSO1-PNP/NC-5/MT
PNP / NO3/4" BSPPHBSO1-PNP/NO-6/MT
PNP / NC3/4" BSPPHBSO1-PNP/NC-6/MT
PNP / NO1 1/8" UNEFHBSO1-PNP/NO-7/MT
PNP / NC1 1/8" UNEFHBSO1-PNP/NC-7/MT
NPN / NO1/2" NPTHBSO1-NPN/NO-1/MT
NPN / NC1/2" NPTHBSO1-NPN/NC-1/MT
NPN / NO3/4" NPTHBSO1-NPN/NO-2/MT
NPN / NC3/4" NPTHBSO1-NPN/NC-2/MT
NPN / NO1/2" BSPPHBSO1-NPN/NO-5/MT
NPN / NC1/2" BSPPHBSO1-NPN/NC-5/MT
NPN / NO3/4" BSPPHBSO1-NPN/NO-6/MT
NPN / NC3/4" BSPPHBSO1-NPN/NC-6/MT
NPN / NO1 1/8" UNEFHBSO1-NPN/NO-7/MT
NPN / NC1 1/8" UNEFHBSO1-NPN/NC-7/MT
PNP / NO1/2" NPTHBSO2-PNP/NO-1/MT
PNP / NC1/2" NPTHBSO2-PNP/NC-1/MT
PNP / NO3/4" NPTHBSO2-PNP/NO-2/MT
PNP / NC3/4" NPTHBSO2-PNP/NC-2/MT
PNP / NO1/2" BSPPHBSO2-PNP/NO-5/MT
PNP / NC1/2" BSPPHBSO2-PNP/NC-5/MT
PNP / NO3/4" BSPPHBSO2-PNP/NO-6/MT
PNP / NC3/4" BSPPHBSO2-PNP/NC-6/MT
PNP / NO1 1/8" UNEFHBSO2-PNP/NO-7/MT
PNP / NC1 1/8" UNEFHBSO2-PNP/NC-7/MT
NPN / NO1/2" NPTHBSO2-NPN/NO-1/MT
NPN / NC1/2" NPTHBSO2-NPN/NC-1/MT
NPN / NO3/4" NPTHBSO2-NPN/NO-2/MT
NPN / NC3/4" NPTHBSO2-NPN/NC-2/MT
NPN / NO1/2" BSPPHBSO2-NPN/NO-5/MT
NPN / NC1/2" BSPPHBSO2-NPN/NC-5/MT
NPN / NO3/4" BSPPHBSO2-NPN/NO-6/MT
NPN / NC3/4" BSPPHBSO2-NPN/NC-6/MT
NPN / NO1 1/8" UNEFHBSO2-NPN/NO-7/MT
NPN / NC1 1/8" UNEFHBSO2-NPN/NC-7/MT
Spare parts for HBSO1/2/MT
Electronic part for HBSO1-PNP/NO HBSO1-EL/PNP/NO/MT
Electronic part for HBSO1-PNP/NC HBSO1-EL/PNP/NC/MT
Electronic part for HBSO1-NPN/NO HBSO1-EL/NPN/NO/MT
Electronic part for HBSO1-NPN/NC HBSO1-EL/NPN/NC/MT
Electronic part for HBSO2-PNP/NO HBSO2-EL/PNP/NO/MT
Electronic part for HBSO2-PNP/NC HBSO2-EL/PNP/NC/MT
Electronic part for HBSO2-NPN/NO HBSO2-EL/NPN/NO/MT
Electronic part for HBSO2-NPN/NC HBSO2-EL/NPN/NC/MT

Downloads

Quick guide - HBSO

Instruction manual - HBSO

Troubleshooting manual - HBSO

Drawing (STEP file) - HBSO

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