HBProducts | Vapor Quality Sensors | Angle Rod Housing

Technical data: HBX-DX

HB products has developed the unique vapor quality sensor, which is the only sensor able to directly measure the liquid content of liquid in the evaporator output. The sensor works both in pump circulated and DX systems and can optimize the efficiency and capacity to a new level.

Evaporator control

The optimal evaporator is not filled with liquid refrigerant like you often have in pump circulated refrigerant systems with circulation ratios above 1.5. The optimal evaporator is not dry like a lot of superheat-controlled evaporators.
By measuring the liquid content in the evaporator output and using this measurement to control the liquid feed.

Most refrigeration systems operate most of the time in part load and especially during part load the efficiency is typically rather poor and can be optimized significantly. Pump circulated systems fills the evaporator with liquid which reduce heat transfer by 50 % and increases the pressure loss which increase energy consumption. For pump circulated systems an energy saving of minimum 20% is typical for optimized systems, and much more on systems without circulation control.

In DX systems a larger part of the evaporator is used for superheating and the superheat is increased which reduce capacity and increase the power consumption dramatically. We have documentation showing an energy saving of 20% during full load and 50% during part load for a DX ammonia system. Link to the documentation.

Angle Rod version

The Angle Rod version is suited for smaller systems and is made in stainless steel. It accepts flow in both directions and is suited for all common refrigerants.

The sensor comes with reductions to compensate for a restricted flow area as standard. The sensor is made in stainless steel and can be butt welded (TIG) or brazed into the system. The sensor element can be removed and cleaned if necessary. The sensor is available from ¼” to 1” pipe size.

Product selection guide

To find the right part number to purchase please use our selection guide in the shop (link below), product overview under "ordering code" or send our Product Manager Henrik Kudsk a system description and he will guide you to the right part number. Please use the "Product Specification Form" (find it under the "downloads" tab on this product page) and e-mail it to autabaec@gmail.com

Products Features

• Measures the volumetric concentration of gas in a gas/liquid mixture
• Balanced evaporator control to achieve semi-flooded operation with high heat transfer
• Able to control an expansion valve directly with simultaneously analog 4-20mA output to a PLC
• Can be used to optimize and control both DX systems and overfeed systems
• Instant measurement and analog output
• Split design which makes it easy to install and perform diagnostics on.
• Can be used for all common refrigerants

Optimum efficiency at all loads is obtain by measuring the Vapor Quality in the outlet of the evaporator and use the signal to change the height of the driving head as shown, lower level will minimize the liquid amount in the evaporator and secure balanced and dynamic evaporation during part load and thus optimum heat transfer.

The HBX-OVC-ST Vapor Quality control signal (cable out, 4-20mA) is connected to DI 3 (pin 3) on the HBSLC liquid level sensor and used to change the desired set value for the liquid level in the recirculation vessel/separator.

Connection Diagram and Drawing

Specifications

Power supply		Approvals
Voltage	24 V AC/DC	EMC test	EN 61000-2
Current consumption	Max 600 mA
Electronic connection	M12, 5 pins	Configurations
Output		Configuration	HB Tool
Analog output	4-20 mA	Tool to be used	HBX software
LED indication	Green, yellow, and red	Valve control (Modulating valve)
Environmental conditions		Signal to valve	4-20 mA
Ambient temperature	-30...+50°C	Valve regulation	PI-regulation
Liquid temperature	-60...+80°C	Valve control (PWM)
Max. pressure	100 bar	Signal to valve	24V AC/DC
Degree of protection	IP65	PWM period	0-120 s (default 6 s.)
Vibrations	IEC 60068-2-6 (4g)	Valve control (Stepper motor)
Mechanical specifications		Stepper motor steps	25-5000 steps
Material - mechanical parts	AISI 304 / PTFE	Stepper motor speed	2-40 m/s
Material - electronic parts	Nylon 6 (PA)	Stepper motor phase current	0-750 mA
Dimensions	See drawing	Stepper motor holding current	0-250 mA
Cable specification (power supply)		Cable specification (valve control)
Cable size	5 m - 5 x 0.34 mm2	Length	3 m (118”)
Cable glands	PG7 / M8	Cable size	3 x 0.75 mm2
Cable resistance	500 Ohm/Km	Cable glands	PG7 / M8

Prodcuts Ordering Code

Pipe diameter	Refrigerant	Material	Design	Direct valve control	Ordering code
For Start/Stop Applications:
1/4 “	CO2	Copper	DX	N.A.	HBX-DX-CO2-CU-T-1/4
3/8 “	CO2	Copper	DX	N.A.	HBX-DX-CO2-CU-T-3/8
1/2 “	CO2	Copper	DX	N.A.	HBX-DX-CO2-CU-T-1/2
5/8 “	CO2	Copper	DX	N.A.	HBX-DX-CO2-CU-T-5/8
3/4 “	CO2	Copper	DX	N.A.	HBX-DX-CO2-CU-T-3/4
7/8 “	CO2	Copper	DX	N.A.	HBX-DX-CO2-CU-T-7/8
1/4 “	CO2	Stainless	DX	N.A.	HBX-DX-CO2-SS-T-1/4
3/8 “	CO2	Stainless	DX	N.A.	HBX-DX-CO2-SS-T-3/8
1/2 “	CO2	Stainless	DX	N.A.	HBX-DX-CO2-SS-T-1/2
5/8 “	CO2	Stainless	DX	N.A.	HBX-DX-CO2-SS-T-5/8
3/4 “	CO2	Stainless	DX	N.A.	HBX-DX-CO2-SS-T-3/4
7/8 “	CO2	Stainless	DX	N.A.	HBX-DX-CO2-SS-T-7/8
1/4 “	CO2	Copper	DX	Modulating	HBX-DX/C-CO2-CU-T-1/4
3/8 “	CO2	Copper	DX	Modulating	HBX-DX/C-CO2-CU-T-3/8
1/2 “	CO2	Copper	DX	Modulating	HBX-DX/C-CO2-CU-T-1/2
5/8 “	CO2	Copper	DX	Modulating	HBX-DX/C-CO2-CU-T-5/8
3/4 “	CO2	Copper	DX	Modulating	HBX-DX/C-CO2-CU-T-3/4
7/8 “	CO2	Copper	DX	Modulating	HBX-DX/C-CO2-CU-T-7/8
1/4 “	CO2	Stainless	DX	Modulating	HBX-DX/C-CO2-SS-T-1/4
3/8 “	CO2	Stainless	DX	Modulating	HBX-DX/C-CO2-SS-T-3/8
1/2 “	CO2	Stainless	DX	Modulating	HBX-DX/C-CO2-SS-T-1/2
5/8 “	CO2	Stainless	DX	Modulating	HBX-DX/C-CO2-SS-T-5/8
3/4 “	CO2	Stainless	DX	Modulating	HBX-DX/C-CO2-SS-T-3/4
7/8 “	CO2	Stainless	DX	Modulating	HBX-DX/C-CO2-SS-T-7/8
1/4 “	CO2	Copper	DX	PWM	HBX-DX/P-CO2-CU-T-1/4
3/8 “	CO2	Copper	DX	PWM	HBX-DX/P-CO2-CU-T-3/8
1/2 “	CO2	Copper	DX	PWM	HBX-DX/P-CO2-CU-T-1/2
5/8 “	CO2	Copper	DX	PWM	HBX-DX/P-CO2-CU-T-5/8
3/4 “	CO2	Copper	DX	PWM	HBX-DX/P-CO2-CU-T-3/4
7/8 “	CO2	Copper	DX	PWM	HBX-DX/P-CO2-CU-T-7/8
1/4 “	CO2	Stainless	DX	PWM	HBX-DX/P-CO2-SS-T-1/4
3/8 “	CO2	Stainless	DX	PWM	HBX-DX/P-CO2-SS-T-3/8
1/2 “	CO2	Stainless	DX	PWM	HBX-DX/P-CO2-SS-T-1/2
5/8 “	CO2	Stainless	DX	PWM	HBX-DX/P-CO2-SS-T-5/8
3/4 “	CO2	Stainless	DX	PWM	HBX-DX/P-CO2-SS-T-3/4
7/8 “	CO2	Stainless	DX	PWM	HBX-DX/P-CO2-SS-T-7/8
1/4 “	CO2	Copper	DX	Stepper	HBX-DX/S-CO2-CU-T-1/4
3/8 “	CO2	Copper	DX	Stepper	HBX-DX/S-CO2-CU-T-3/8
1/2 “	CO2	Copper	DX	Stepper	HBX-DX/S-CO2-CU-T-1/2
5/8 “	CO2	Copper	DX	Stepper	HBX-DX/S-CO2-CU-T-5/8
3/4 “	CO2	Copper	DX	Stepper	HBX-DX/S-CO2-CU-T-3/4
7/48“	CO2	Copper	DX	Stepper	HBX-DX/S-CO2-CU-T-7/8
1/4 “	CO2	Stainless	DX	Stepper	HBX-DX/S-CO2-SS-T-1/4
3/8 “	CO2	Stainless	DX	Stepper	HBX-DX/S-CO2-SS-T-3/8
1/2 “	CO2	Stainless	DX	Stepper	HBX-DX/S-CO2-SS-T-1/2
5/8 “	CO2	Stainless	DX	Stepper	HBX-DX/S-CO2-SS-T-5/8
3/4 “	CO2	Stainless	DX	Stepper	HBX-DX/S-CO2-SS-T-3/4
7/8 “	CO2	Stainless	DX	Stepper	HBX-DX/S-CO2-SS-T-7/8
For Continous Operation:
1/4 “	CO2	Copper	DX	N.A.	HBX-DX-CO2-CU-1/4
3/8 “	CO2	Copper	DX	N.A.	HBX-DX-CO2-CU-3/8
1/2 “	CO2	Copper	DX	N.A.	HBX-DX-CO2-CU-1/2
5/8 “	CO2	Copper	DX	N.A.	HBX-DX-CO2-CU-5/8
3/4 “	CO2	Copper	DX	N.A.	HBX-DX-CO2-CU-3/4
7/8 “	CO2	Copper	DX	N.A.	HBX-DX-CO2-CU-7/8
1/4 “	CO2	Stainless	DX	N.A.	HBX-DX-CO2-SS-1/4
3/8 “	CO2	Stainless	DX	N.A.	HBX-DX-CO2-SS-3/8
1/2 “	CO2	Stainless	DX	N.A.	HBX-DX-CO2-SS-1/2
5/8 “	CO2	Stainless	DX	N.A.	HBX-DX-CO2-SS-5/8
3/4 “	CO2	Stainless	DX	N.A.	HBX-DX-CO2-SS-3/4
7/8 “	CO2	Stainless	DX	N.A.	HBX-DX-CO2-SS-7/8
1/4 “	CO2	Copper	DX	Modulating	HBX-DX/C-CO2-CU-1/4
3/8 “	CO2	Copper	DX	Modulating	HBX-DX/C-CO2-CU-3/8
1/2 “	CO2	Copper	DX	Modulating	HBX-DX/C-CO2-CU-1/2
5/8 “	CO2	Copper	DX	Modulating	HBX-DX/C-CO2-CU-5/8
3/4 “	CO2	Copper	DX	Modulating	HBX-DX/C-CO2-CU-3/4
7/8 “	CO2	Copper	DX	Modulating	HBX-DX/C-CO2-CU-7/8
1/4 “	CO2	Stainless	DX	Modulating	HBX-DX/C-CO2-SS-1/4
3/8 “	CO2	Stainless	DX	Modulating	HBX-DX/C-CO2-SS-3/8
1/2 “	CO2	Stainless	DX	Modulating	HBX-DX/C-CO2-SS-1/2
5/8 “	CO2	Stainless	DX	Modulating	HBX-DX/C-CO2-SS-5/8
3/4 “	CO2	Stainless	DX	Modulating	HBX-DX/C-CO2-SS-3/4
7/8 “	CO2	Stainless	DX	Modulating	HBX-DX/C-CO2-SS-7/8
1/4 “	CO2	Copper	DX	PWM	HBX-DX/P-CO2-CU-1/4
3/8 “	CO2	Copper	DX	PWM	HBX-DX/P-CO2-CU-3/8
1/2 “	CO2	Copper	DX	PWM	HBX-DX/P-CO2-CU-1/2
5/8 “	CO2	Copper	DX	PWM	HBX-DX/P-CO2-CU-5/8
3/4 “	CO2	Copper	DX	PWM	HBX-DX/P-CO2-CU-3/4
7/8 “	CO2	Copper	DX	PWM	HBX-DX/P-CO2-CU-7/8
1/4 “	CO2	Stainless	DX	PWM	HBX-DX/P-CO2-SS-1/4
3/8 “	CO2	Stainless	DX	PWM	HBX-DX/P-CO2-SS-3/8
1/2 “	CO2	Stainless	DX	PWM	HBX-DX/P-CO2-SS-1/2
5/8 “	CO2	Stainless	DX	PWM	HBX-DX/P-CO2-SS-5/8
3/4 “	CO2	Stainless	DX	PWM	HBX-DX/P-CO2-SS-3/4
7/8 “	CO2	Stainless	DX	PWM	HBX-DX/P-CO2-SS-7/8
1/4 “	CO2	Copper	DX	Stepper	HBX-DX/S-CO2-CU-1/4
3/8 “	CO2	Copper	DX	Stepper	HBX-DX/S-CO2-CU-3/8
1/2 “	CO2	Copper	DX	Stepper	HBX-DX/S-CO2-CU-1/2
5/8 “	CO2	Copper	DX	Stepper	HBX-DX/S-CO2-CU-5/8
3/4 “	CO2	Copper	DX	Stepper	HBX-DX/S-CO2-CU-3/4
7/48“	CO2	Copper	DX	Stepper	HBX-DX/S-CO2-CU-7/8
1/4 “	CO2	Stainless	DX	Stepper	HBX-DX/S-CO2-SS-1/4
3/8 “	CO2	Stainless	DX	Stepper	HBX-DX/S-CO2-SS-3/8
1/2 “	CO2	Stainless	DX	Stepper	HBX-DX/S-CO2-SS-1/2
5/8 “	CO2	Stainless	DX	Stepper	HBX-DX/S-CO2-SS-5/8
3/4 “	CO2	Stainless	DX	Stepper	HBX-DX/S-CO2-SS-3/4
7/8 “	CO2	Stainless	DX	Stepper	HBX-DX/S-CO2-SS-7/8

Downloads

• HBX - Vapor Quality Instruction Manual
• Product Specification Form
• Plant Optimization
• Video