ARMS2 - Refrigerant Gas Leak Detection System


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The ARMS 2 is an aspirated refrigerant gas leak detection system which has been designed to alarm in the event of a refrigerant leak helping you to avoid replacing expensive system charge.

• Meets the specific requirements of the F-Gas Regulation 

• Operational on over 150 sites across Europe

• Dual multi-gas detection including CO2 , NH3 or HFC’s at up to 32 individual points

Product Description


The ARMS 2 is one of the most popular fixed refrigerant gas leak detection systems used to satisfy the requirements of the F-Gas Regulation.

The ARMS2 offers dual multi-gas detection of CO2 , NH3 or HFC’s of up to 32 points

a1-cbiss have over 20 years experience in the design, manufacturing and installation of custom built gas monitoring and sampling systems.

Industry Requirements - When to Fit Automatic Leak Detection

Under the current F-Gas Regulation it is mandatory for sites with an overall refrigerant charge of 500 tonnes CO2e or more to install a fixed refrigerant leak detection system. Read the latest on the F-Gas legislation

Mass of gases commonly used in refrigeration, air conditioning or fire protection equivalent to 500 tonnes of carbon dioxide

F gasMass of gas equivalent to 500 tonnes of carbon dioxide (kg)
HFC 23 34
HFC 508B 38
HFC 507A 125
HFC 404A 127
HFC 434A 154
HFC 227ea 155
HFC 422D 183
HFC 438A 221
HFC 410A 239
HFC 407C 282
HFC 134a 350

The Automatic Refrigerant Monitoring System

Leak detection for F-Gas compliancy can be achieved with a fixed refrigerant gas leak detection system from a1-cbiss. By definition the ARMS 2 is a system which is calibrated mechanical, electrical or electronic device for detecting leakage of fluorinated greenhouse gases, which on detection, alerts the operator.

'Up to 32 individual channels can be supplied'

The ARMS 2 utilises multi-gas infrared sensor technology and can be supplied as an 8, 16, 24 or 32 channels model, to provide wide area refrigerant leak detection for the simultaneous measurement of multiple gases.

In addition to these features, the system also features a range of flexible I/O options as standard and fully configurable settings, accessed via the touch screen display.

The ARMS2 uses the Andros 6552 NDIR gas module with two gas channels can be applied to any type or combination of refrigeration systems that may employ CFC, HFC, HCFCs and CO2



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