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Technical data: 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.
