Oil Level Controller

Technical data: HBOC/C

The HBOC/C sensor detects oil level in gas like the HBSO but has additional functionality. The sensor can control a valve for filling or emptying the vessel to maintain the level. The built-in controller can be configured with the parameters necessary for direct control of a solenoid valve for oil level control.

The sensor can be used in any gas and in different industries. Typically, it is used in refrigeration systems in compressors and oil separators to maintain a desired level.

The switch can be used for elevated temperatures and the switch point can be adjusted to match the oil type. Setup of the switch is done in the HB Tool which can be downloaded to a PC.

Shop image

Product features

Complete and simple design for automatic oil management. A cost effective solution.
Simple installation and configuration with PC. Timer and alarm functions are all programmable.
LED indication of oil level, alarm and power supply. Alarm output to central panel.
Sensor design for pressure up to 150 bar
Split design which makes it easy to install and makes diagnostic on. The electronic part can be easily disconnected with 2 small screws.





Connection diagram

HBOC C HBOR C diagram 003 Small



oil level controller



Power supply
Voltage24 V DC +/- 10%
Current consumptionMax 600 mA
Plug connectionM12, 5 pins
Direct valve control - cable
Solenoid valve24 V DC - max 24 W
Cable length3 m (118”)
Cable dimensions2 x 0,75 mm2
M12 output
Alarm outputSolid State
Contact functionNC/NO
Potential free outputMax 1 A (24W)
Environmental conditions
Ambient temperature-30...50°C
Oil temperature0... 80°C
Max pressure150 bar
Protection degreeIP54
VibrationsIEC 68-2-6 (4g)
Mechanical specifications
Thread connection1/2", 3/4” & 1 1/8"
Material - liquid partsAISI 304 / PTFE
Material - electronic partsNylon 6 (PA)
EMC testEN 61000-2
Power, oilfeed and alarmLED (green, yellow & red)
LED indication of switch pointGreen
ConfigurationWith PC tool
USB programming cableHBxC-USB

Ordering code

House designThread typeOrdering code
Angled1/2" NPTHBOC/C-1
Angled3/4" NPTHBOC/C-2
Angled3/4" BSPPHBOC/C-6
Angled1 1/8" UNEFHBOC/C-7
Electronic part for HBOC/C HBOC/C-EL


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