HBProducts | Liquid Level Switches | Oil Level Switches | HBSO
HBSO are level switches for detecting common lubricating oils in gas and air. Typically, it is installed in/on the compressor and the oil separator, but it is also suited for installation in other locations where you like to detect oil. It is calibrated so that it is unaffected by oil spray and only allows a small amount of foam.
The HBSO1, HBSO2, HBSO1/MT and HBSO2/MT are physically identical sensors all able to work in oil up to 100°C (212°F) and pressures up to 150 bars. The four versions have different switch points optimal for different oil types and systems.
HBSO1 is the general type and the most sensitive version suited for most applications and if it operates satisfactory you should keep using it. HBSO1 performs well in CO2 systems on compressors and oil separators. For systems where the switch does not operate correctly, we have other versions with a different switching point.
HBSO2 is suited for PAG oils and some POE oils at low temperatures. This sensor is less sensitive and should be used if the HBSO1 triggers without oil is present.
The HBSO1/MT and HBSO2/MT has switch points designed for ammonia heat pumps and other applications with oil temperatures in the range 40 - 80°C. These switches are used in systems where the normal HBSO1 and HBSO2 are too sensitive and indicate oil when oil no longer covers the sensor.
For elevated temperatures we have the HBSO-SSR /HT which is designed for oil temperatures above 80°C and the switch points can be adjusted to fit the application.
The oil brand and system design have impact on the switching point and in some systems, it might be needed to use the HBSO-SSR /HT. This sensor has flexible switch points which can be adjusted to fit the application.
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
- Split design which makes it easy to install and make diagnosti
- Designed for the industrial refrigeration industry - max pressure up to 150 bar
- Clear LED indication
- Temperature range 0...90°C
Application
Specification
| Power supply | Environmental conditions | ||
| Voltage | 24 V AC/DC + 10% | Ambient temperature | -30...+50°C |
| Current consumption | < 200 mA | Oil temperature | 0...90°C |
| Max current output | Max 50 mA | Recommended oil temperature for HBSO | 0...60°C |
| Plug connection | ISO4400/DIN 43650 | Recommended oil temperature for HBSO-MT | 50...80°C |
| Output | Max pressure | 150 bar | |
| Transistor output | PNP or NPN | Protection degree | IP54 * |
| Contact function | NC or NO | Vibrations | IEC 60068-2-6 (4g) |
| Approvals | Mechanical specifications | ||
| EMC test | EN 61000-2 | Thread connection | 1/2", 3/4” & 1 1/8" |
| Indication | Material (liquid parts) | AISI 304 / PTFE | |
| LED indication | 4 x red & 4 x green | Material (electronic parts) | Nylon 6 (PA) |
| Accessories | |||
| Compressor adapter | HBS/ADAP/FLANGE | *For outdoor and low temperature application use low temperature type | |
Ordering Code
| Output | Thread type | Ordering code |
|---|---|---|
| Oil Level Switches for Refrigeration Systems: | ||
| PNP / NO | 1/2" NPT | HBSO1-PNP/NO-1 |
| PNP / NC | 1/2" NPT | HBSO1-PNP/NC-1 |
| PNP / NO | 3/4" NPT | HBSO1-PNP/NO-2 |
| PNP / NC | 3/4" NPT | HBSO1-PNP/NC-2 |
| PNP / NO | 1/2" BSPP | HBSO1-PNP/NO-5 |
| PNP / NC | 1/2" BSPP | HBSO1-PNP/NC-5 |
| PNP / NO | 3/4" BSPP | HBSO1-PNP/NO-6 |
| PNP / NC | 3/4" BSPP | HBSO1-PNP/NC-6 |
| PNP / NO | 1 1/8" UNEF | HBSO1-PNP/NO-7 |
| PNP / NC | 1 1/8" UNEF | HBSO1-PNP/NC-7 |
| NPN / NO | 1/2" NPT | HBSO1-NPN/NO-1 |
| NPN / NC | 1/2" NPT | HBSO1-NPN/NC-1 |
| NPN / NO | 3/4" NPT | HBSO1-NPN/NO-2 |
| NPN / NC | 3/4" NPT | HBSO1-NPN/NC-2 |
| NPN / NO | 1/2" BSPP | HBSO1-NPN/NO-5 |
| NPN / NC | 1/2" BSPP | HBSO1-NPN/NC-5 |
| NPN / NO | 3/4" BSPP | HBSO1-NPN/NO-6 |
| NPN / NC | 3/4" BSPP | HBSO1-NPN/NC-6 |
| NPN / NO | 1 1/8" UNEF | HBSO1-NPN/NO-7 |
| NPN / NC | 1 1/8" UNEF | HBSO1-NPN/NC-7 |
| PNP / NO | 1/2" NPT | HBSO2-PNP/NO-1 |
| PNP / NC | 1/2" NPT | HBSO2-PNP/NC-1 |
| PNP / NO | 3/4" NPT | HBSO2-PNP/NO-2 |
| PNP / NC | 3/4" NPT | HBSO2-PNP/NC-2 |
| PNP / NO | 1/2" BSPP | HBSO2-PNP/NO-5 |
| PNP / NC | 1/2" BSPP | HBSO2-PNP/NC-5 |
| PNP / NO | 3/4" BSPP | HBSO2-PNP/NO-6 |
| PNP / NC | 3/4" BSPP | HBSO2-PNP/NC-6 |
| PNP / NO | 1 1/8" UNEF | HBSO2-PNP/NO-7 |
| PNP / NC | 1 1/8" UNEF | HBSO2-PNP/NC-7 |
| NPN / NO | 1/2" NPT | HBSO2-NPN/NO-1 |
| NPN / NC | 1/2" NPT | HBSO2-NPN/NC-1 |
| NPN / NO | 3/4" NPT | HBSO2-NPN/NO-2 |
| NPN / NC | 3/4" NPT | HBSO2-NPN/NC-2 |
| NPN / NO | 1/2" BSPP | HBSO2-NPN/NO-5 |
| NPN / NC | 1/2" BSPP | HBSO2-NPN/NC-5 |
| NPN / NO | 3/4" BSPP | HBSO2-NPN/NO-6 |
| NPN / NC | 3/4" BSPP | HBSO2-NPN/NC-6 |
| NPN / NO | 1 1/8" UNEF | HBSO2-NPN/NO-7 |
| NPN / NC | 1 1/8" UNEF | HBSO2-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 / NO | 1/2" NPT | HBSO1-PNP/NO-1/MT |
| PNP / NC | 1/2" NPT | HBSO1-PNP/NC-1/MT |
| PNP / NO | 3/4" NPT | HBSO1-PNP/NO-2/MT |
| PNP / NC | 3/4" NPT | HBSO1-PNP/NC-2/MT |
| PNP / NO | 1/2" BSPP | HBSO1-PNP/NO-5/MT |
| PNP / NC | 1/2" BSPP | HBSO1-PNP/NC-5/MT |
| PNP / NO | 3/4" BSPP | HBSO1-PNP/NO-6/MT |
| PNP / NC | 3/4" BSPP | HBSO1-PNP/NC-6/MT |
| PNP / NO | 1 1/8" UNEF | HBSO1-PNP/NO-7/MT |
| PNP / NC | 1 1/8" UNEF | HBSO1-PNP/NC-7/MT |
| NPN / NO | 1/2" NPT | HBSO1-NPN/NO-1/MT |
| NPN / NC | 1/2" NPT | HBSO1-NPN/NC-1/MT |
| NPN / NO | 3/4" NPT | HBSO1-NPN/NO-2/MT |
| NPN / NC | 3/4" NPT | HBSO1-NPN/NC-2/MT |
| NPN / NO | 1/2" BSPP | HBSO1-NPN/NO-5/MT |
| NPN / NC | 1/2" BSPP | HBSO1-NPN/NC-5/MT |
| NPN / NO | 3/4" BSPP | HBSO1-NPN/NO-6/MT |
| NPN / NC | 3/4" BSPP | HBSO1-NPN/NC-6/MT |
| NPN / NO | 1 1/8" UNEF | HBSO1-NPN/NO-7/MT |
| NPN / NC | 1 1/8" UNEF | HBSO1-NPN/NC-7/MT |
| PNP / NO | 1/2" NPT | HBSO2-PNP/NO-1/MT |
| PNP / NC | 1/2" NPT | HBSO2-PNP/NC-1/MT |
| PNP / NO | 3/4" NPT | HBSO2-PNP/NO-2/MT |
| PNP / NC | 3/4" NPT | HBSO2-PNP/NC-2/MT |
| PNP / NO | 1/2" BSPP | HBSO2-PNP/NO-5/MT |
| PNP / NC | 1/2" BSPP | HBSO2-PNP/NC-5/MT |
| PNP / NO | 3/4" BSPP | HBSO2-PNP/NO-6/MT |
| PNP / NC | 3/4" BSPP | HBSO2-PNP/NC-6/MT |
| PNP / NO | 1 1/8" UNEF | HBSO2-PNP/NO-7/MT |
| PNP / NC | 1 1/8" UNEF | HBSO2-PNP/NC-7/MT |
| NPN / NO | 1/2" NPT | HBSO2-NPN/NO-1/MT |
| NPN / NC | 1/2" NPT | HBSO2-NPN/NC-1/MT |
| NPN / NO | 3/4" NPT | HBSO2-NPN/NO-2/MT |
| NPN / NC | 3/4" NPT | HBSO2-NPN/NC-2/MT |
| NPN / NO | 1/2" BSPP | HBSO2-NPN/NO-5/MT |
| NPN / NC | 1/2" BSPP | HBSO2-NPN/NC-5/MT |
| NPN / NO | 3/4" BSPP | HBSO2-NPN/NO-6/MT |
| NPN / NC | 3/4" BSPP | HBSO2-NPN/NC-6/MT |
| NPN / NO | 1 1/8" UNEF | HBSO2-NPN/NO-7/MT |
| NPN / NC | 1 1/8" UNEF | HBSO2-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 |
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Oil level Switches Series Products include : Oil level Controller-Compressor , Oil Level Switch , Oil Return Switch , Oil Pot Controller-Oil Return , Oil Level Switch- High Temperature Oil Ejector, Oil Level Switch(HBSO-SSR) , Universal Oil Switch 24VAC/DC , Oil Level Switch - Low Temperature , Oil Level Switch - Low Temperature(HBSO-SSR-LT) e
