Oil Pot Controller

Technical data: HBOR/C

HBOR/C is a level sensor with a built-in controller for controlling the oil return from the oil collection points in industrial cooling systems. The sensor is installed in the oil pot at the level where automatic emptying should take place. When the sensor no longer detects NH3, it automatically opens the solenoid valves so that hot gas is fed over an ejector. The ejector forms a vacuum so that the oil pot is automatically emptied. The oil emptying function is set with a PC tool.


Product features

  Complete and simple design for automatic oil management in oil pots.

Simple installation and configuration with a 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 perform diagnostics. The electronic part can be easily disconnected with 2 small screws.




Connection diagarm

HBOR connection


HBOR dimensions 

Power supply
Voltage24 V DC + 10%
Max current consumption50 mA
Connection for solenoid valveCabel - 3 wire - 3 m
Plug connection main supplyM12, 4 pins - DIN 0627
Output typeSolidstate - 1A
Contact functionNC or NO
Environmental conditions
Ambient temperature-30...+50°C
Refrigerant temperature-60...+80°C
Mechanical specifications
Thread connection3/4” - NPT/BSPP 
Material - liquid partsAISI 304 / PTFE
Material - electronic partsNylon 6 (PA)
Dimensions206 x 72 x 51 mm
Weight500 g
House designAngle
EMC testEN 61000-1
5 m cable w. M12 plug HBxC-M12/5
Cable specifications 4 x 0,34 mm2 
LED indicationRed, yellow & green

Ordering code

OutputThread typeOrdering code
Electronic part for HBOR/C HBOR/C-EL