OIL SENSORS
LOW TEMPERATURE OIL LEVEL SWITCH - 24 V AC/DC - HBSO-LT



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INTRODUCTION

HBSO-LT is a low temperature level switch used for detecting common lubricating oils in refrigeration systems. The switch is special developed for low temperature applications.

The HBSO version of the low temperature oil switch can be used for all types PAO, POE, mineral oil and PAG oil.

 Typically it is installed in / on the compressor and the oil separator, but it is also suited for installation in other locations in the oil system. The sensor’s measurement principle makes it unique for these purposes, since the properties of the measurement

principle allows it, among other things, to detect oil without detecting refrigerant.

 It is calibrated so that it is unaffected by oil spray and only allows a small amount of foam.

The electronic sensor head is the same as the one used for the regular HBSO1 and HBSO2 sensors. The mechanical part has got a special open design made for draining the stiff and sticky oil at low temperatures on the low pressure side of a cooling plant.

TECHNICAL DETAILS

The switch is special developed for low temperature applications
Oil temperature range -30°...+90°C
The mechanical part is made with a special open design for draining the stiff & sticky oil at low temperatures
Proven and reliable sensor with NPN/PNP transistor output and NO/NC contact function
Split design which makes it easy to install and make diagnostic. The electronic part can easily be disassembled by 2 screws.
Designed for the industrial refrigeration industry - max pressure up to 150 bar
Clear LED indication

SPECIFICATIONS

Connection diagram

 

hb switches

 

Drawing

 

 HBSO LT MECHANICAL DIMENSIONS

 

 

 

Power supply
Voltage 24 V AC/DC + 10%
Max current consumption Max 50 mA
Plug connection DIN 43650
Output
Transistor output PNP or NPN
Contact function NC or NO
Environmental conditions
Ambient temperature -30°...+50°C
Oil temperature -30°...+90°C
Max pressure 150 bar
Protection degree IP65
Vibrations IEC 68-2-6 (4g)
Mechanical specifications
Thread connection 1/2", 3/4” NPT & 3/4" BSPP
Material (liquid parts) AISI 304 / PTFE
Material (electronic parts) Nylon 6 (PA)
Outside dimensions 277 x 40 mm
Weight 485 g
House design Front
Approvals
EMC test EN 61000-2
Indication
LED indication 4 x red

DISCLAIMER

Output Thread type Ordering code
PNP / NO 3/4" NPT HBSO-PNP/NO-2-LT
PNP / NC 3/4" NPT HBSO-PNP/NC-2-LT
NPN / NO 3/4" NPT HBSO-NPN/NO-2-LT
NPN / NC 3/4" NPT HBSO-NPN/NC-2-LT
PNP / NO 3/4" BSPP HBSO-PNP/NO-6-LT
PNP / NC 3/4" BSPP HBSO-PNP/NC-6-LT
NPN / NO 3/4" BSPP HBSO-NPN/NO-6-LT
NPN / NC 3/4" BSPP HBSO-NPN/NC-6-LT

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