Vapor Quality Sensor - ATEX

Category: HBX-CO2/HFC for DX and Overfeed Systems

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. 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.

Intrinsically Safe design:

Intrinsically Safe (IS) sensors are designed and wired to work on such a low current and voltage that it cannot possibly ignite flammable material. By limiting the energy available within the defined hazardous area, electrical equipment can operate safely even amid hazardous mixtures of gasses.

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   

Shop image

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
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


Fordamperkasse SS






HBX SS mål web700                            

 HBX SS mål hoved web250


 HBX dimensions

Connection diagram:

Diagram sensor

Power supply
Voltage12-28 V DC two wire
Max. current consumption Max 20 mA
Plug connectionsM12, 5 pins - DIN 0627
Signal output 4...20 mA (AO)
Mechanical specifications
Material liquid partsAISI 304 / PTFE
Material electronic partsNylon 6 (PA)
Environmental conditions
Max pressure150 bar
Protection degreeIP65
VibrationsIEC 68-2-6 (4g)
EMCEN 61000
Ex area
IECEx classificationEx ia IIC T1…T6 Ga
Device category1G for Zone 0 & 1
Type of protectionia
Gas resp. gas groupIIC
Temperature classT1….T6
Ambient temperature-40...+50°C/+70°C
When used in Ex-area the installation has to be carried out according to standards in force for the country in question.
The Equipment must be installed via an approved and certified galvanically interface barrier placed outside the hazardous area.

Ordering code

Pipe diameterMaterialATEX/IECEx approvalOrdering code
1/4“CopperZone 1 HB-DX-CO2-C-T-1/4-Z1
3/8“CopperZone 1 HB-DX-CO2-C-T-3/8-Z1
1/2“CopperZone 1 HB-DX-CO2-C-T-1/2-Z1
5/8”CopperZone 1 HB-DX-CO2-C-T-5/8-Z1
3/4“CopperZone 1 HB-DX-CO2-C-T-3/4-Z1
7/8“CopperZone 1 HB-DX-CO2-C-T-7/8-Z1
1/4“CopperZone 0 HB-DX-CO2-C-T-1/4-Z0
3/8“CopperZone 0 HB-DX-CO2-C-T-3/8-Z0
1/2“CopperZone 0 HB-DX-CO2-C-T-1/2-Z0
5/8”CopperZone 0 HB-DX-CO2-C-T-5/8-Z0
3/4“CopperZone 0 HB-DX-CO2-C-T-3/4-Z0
7/8“CopperZone 0 HB-DX-CO2-C-T-7/8-Z0
1/4“Stainless SteelZone 1 HB-DX-CO2-S-T-1/4-Z1
3/8“Stainless SteelZone 1 HB-DX-CO2-S-T-3/8-Z1
1/2“Stainless SteelZone 1 HB-DX-CO2-S-T-1/2-Z1
5/8”Stainless SteelZone 1 HB-DX-CO2-S-T-5/8-Z1
3/4“Stainless SteelZone 1 HB-DX-CO2-S-T-3/4-Z1
7/8“Stainless SteelZone 1 HB-DX-CO2-S-T-7/8-Z1
1/4“Stainless SteelZone 0 HB-DX-CO2-S-T-1/4-Z0
3/8“Stainless SteelZone 0 HB-DX-CO2-S-T-3/8-Z0
1/2“Stainless SteelZone 0 HB-DX-CO2-S-T-1/2-Z0
5/8”Stainless SteelZone 0 HB-DX-CO2-S-T-5/8-Z0
3/4“Stainless SteelZone 0 HB-DX-CO2-S-T-3/4-Z0
7/8“Stainless SteelZone 0 HB-DX-CO2-S-T-7/8-Z0


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