HB Products HBOR User manual

HB Products A/S – www.hbproducts.dk – [e-mail] – tel.: [phone] Quick guide – HBOR – rev. 00
Quick guide
HBOR – Oil return switch for NH3 systems
Functionality:
The HBOR switch is made to detect oil in oil collection places in NH3 refrigeration systems. If the HBOR is
to be used in a different way, prior approval must be obtained from HB Products.
Download complete manual:
For further information please download the instruction manual from our homepage: www.hbproducts.dk.
Caution :
Only qualified personnel should work with the product. The technician must be aware of the consequences
of an improperly installed sensor, and must be committed to adhering to the applicable local legislation.
Caution – grease on tip:
Please note that the sensor electronic is protected with silver grease to ensure proper
contact. Please use gloves to protect your skin. The type of grease is CW7100 from
Chemtronics.
HB Products – dedicated to optimal solutions for level measurement
and control of oil and refrigerants.
HB Products is a development-oriented company, which specializes in the development and
production of sensors for industrial refrigeration systems. Apart from expertise within oil and
refrigerant control, we have great know-how in the design and optimization of industrial
refrigeration systems. This knowledge enables us to develop and produce the best sensors!
Since its start more than 0 years ago, HB Products has attained a strong global position. This is
the result of our ability to think in terms of new technological solutions, create trustworthy
products, and provide a high level of service.
For further info and
guidance please visit
our homepage
www.hbproducts.dk

HB Products A/S – www.hbproducts.dk – [e-mail] – tel.: [phone] Quick guide – HBOR – rev. 00
Mec anical installation Electrical installation Mounting of sensor
Mec anical specifications:
Ambient temperature: -30…+50°C
Liquid temperature: -60…+80°C
Max. pressure: 100 bar
Material, mechanical: AISI304/PTFE
Thread connection: see packaging.
Liquid: NH3 & Brine
Electrical specifications:
Supply: 4 V AC/DC
Current draw: Max 50 mA
Plug: DIN 43650
LED indication: 4 x LED (red)
I
nstallation
of mec anical part
:
The sensor must have ground connection to tank. The thread should
be either sealed with conductive liquid sealing or Teflon. If Teflon is
used it should only be on half part of the thread to ensure ground
connection.
Tighten the mechanical part (3/4”) with minimum 80 Nm.
Installation guide:
In case the sensor is installed in a threaded sleeve/pipe stub, this should
be welded at a 5-10° upwards angle relative to the horizontal, so as to
prevent the formation of liquid pockets.
The installation length of the sensor must be taken into account, since
there must be at least mm between the sensor's mechanical part and
other fixed or moving parts.
Caution! In case of welding work on the unit, please make sure that
proper earthing is carried out to avoid damaging the electronics.
LED activation:
4 x red LEDs indicate liquid at the presence of oil
Irrespective of the output function NO/NC, LEDs are activated at
oil liquid level.
4 x green LEDs flashing indicate a live signal.
4 x red LEDs flashing indicate no contact to mechanical part.
Function of charge output:
NC: There should be signal when it is in oil.
NO: There should be no signal when it is in oil.
*If gas or refrigerant is detected, the output is toggled.
I
nstallation
of electronic part
:
1)Place the electronic
)Tighten the set screws with a torque of 5 Nm
Note! LEDs are always activated when approx. half of the sensor is
covered or immersed in oil, irrespective of the sensor's output
function NC/NO.
Note! Fault detection on the electronic function can be carried out
without releasing pressure from the system or disassembling the
mechanical part of the sensor.
Note! All terminals are protected against improper termination
with a supply voltage up to 40 V. If the supply voltage is greater
than 40 V the electronics will be damaged.
Make sure that the
re
is ground
connection with tank.
Tighten the set screws
with 5 Nm.