Oil Pot Controller

Technical data: HBOR/C

The HBOR/C sensor detects oil in liquid ammonia like the HBSR switch but has additional functionality. It can control a valve for filling or emptying the container 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 oil detection is done indirectly by detecting both liquid ammonia and gas. This way of detecting secures that the sensor can return oil in ammonia systems without the risk of both liquid ammonia and gas being emitted.

HBOR is typically used in oil pots, receivers, and oil collectors in evaporators, where you like to detect and return the oil to the compressor or oil reservoir. The switch can be used at low temperatures.

Shop image

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 diagram

 HBOC C HBOR C diagram 003 Small


HBOR dimensions 

Power supply
Voltage24 V DC +/- 10%
Current consumptionMax 30 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
Max pressure100 bar
Protection degreeIP54
VibrationsIEC 68-2-6 (4g)
Mechanical specifications
Thread connection1/2" and 3/4”
Material - liquid partsAISI 304 / PTFE
Material- electronic partsNylon 6 (PA)
Weight300 g
House designAngle housing
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

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


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