Vapor Quality Sensor, Angle Rod

Technical data: HBX

The Vapor Quality Sensors have a new innovative technology which makes it possible to measure the mix between gas and liquid in a refrigerant from 0% gas to 100 % gas - a measurement no other sensor can provide. It consists of a tube, with metal inserts, where the mix of two phases pass through. The sensor measures the dielectric constant of the fluid, and as two different phases (liquid/gas) has different dielectric constant, the mix between the two, can be calculated. The output of the sensor is the “X” value which has a linear relation to the Volume % of liquid in the gas

The sensor offers very precise measurements and provides instant read-outs of the gas quality, making it useable in most evaporators (plate, pipe, and air evaporators).The sensor’s microprocessor also functions as a controller, enabling the direct control of a modulating motor valve, thereby bypassing the external controller or the PLC. The controller can be set up with all the parameters that are necessary for regulating a modulating motor valve or a stepper motor valve. The sensor is available with a cable for direct supply to and control of the motor valve, or as a sensor where the signal is sent to the external controller/PLC.

All vapor quality sensors are suitable for controlling both DX, semi flooded and flooded operation.

Angle rod

The sensor is suited for smaller systems and is made in stainless steel. It accepts flow in both directions and is suited for all common refrigerants. For HFC/HFO’s you need to pick an over sized sensor to keep down pressure loss. 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.

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Product 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
Can be used for all common refrigerants

Applications

HBX DX XXX T APPLICATIONS 1 WEB

HBX DX XXX T APPLICATIONS 2

 

 HBX DX XXX T Fordamperkasse Kobber3

Specifications

HBX DX CU ELECTRICAL CONNECTION

 

 

 HBX DX CU DIMENSIONS HBX DX CU XX DIMENSIONSTEGNING

 

 

HBX DX XXX CU T ELECTRICAL CONNECTION

Drawing

HBX DX XXX CU DIMENSIONER          HBX DX CU XXX FIL 2294 DIMENSIONSTEGNING  

Power supply
Voltage24V AC/DC
Current consumption250 mA with heater
Electronic connectionM12, 5 p
Output
Output signal ”X” 0.8 to 1.04-20 mA / 0-10 V
Valve output, S or C or PWMStepper motor, mA, PWM
Environmental conditions
Ambient temperature-40...+50°C
Refrigerant temperature-55...+50°C
Max. pressureMax 120 bar
VibrationsIEC 68-2-6 (4G)
Mechanical specifications
Thread connectionsPlease see drawing
SizePlease see drawing
MaterialCU K65, SS304, PA6
House typeFront
Approvals
EMCEN 61000-2

Ordering code

Pipe diameterCO2 and other refrigerantsHFC/HC/HFOOrdering code
1/4”AvailableAvailable
3/8”AvailableAvailable
1/2”AvailableAvailable
5/8”AvailableAvailable
3/4”AvailableAvailable
7/8”AvailableNot available
HOW TO ORDER
Vapor quality sensors come in numerous variants - all customized to the application. An order contains a mechanical part and an electronic part programmed to the order. Before ordering you need to consider:
1) The dimension and steel type for the mechanical part. (see table above)
2) The configuration and specification of the electronic part.
To make the right configuration of the sensor, please choose the functions and specifications you need for the electronic part:
Control function: (More than one function is possible)
☐ Analog output only 4-20 mA to PLC/main controller
☐ Control of stepper motor valve e.g. Carel E2V
☐ Control of PVM valve e.g. Danfoss AKV
☐ Control of motor valve e.g. Siemens MVS661 and Danfoss ICM
Refrigerant: (Only on selection)
☐ NH3
☐ CO2
☐ Other please specify
Application: (More than one function is possible)
☐ Direct expansion DX
☐ Overfeed system/flooded/pump circulation
☐ Compressor protection
☐ Leakage protection in ammonia CO2 cascade (ammonia carbamate)
☐ Other please specify
Other functions: (More than one function is possible)
☐ Remote setting of setpoint*
☐ USB cable
* Makes it possible to control the vapor quality (X) setpoint dynamically in the sensor used for controlling an expansion valve directly. The remote setting must be set from a PLC.

To order: Please fill out the HBX Vapor Quality Sensor Ordering Form and attach it in an e-mail to info@hbproducts.dk

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