Evikon E2638-HFC Refrigerant Detector

HFC and HFO Refrigerant Leak Detection for Data Centres, CRAC Cooling Systems and Refrigeration Plants

The Evikon E2638-HFC is a fixed refrigerant detector-transmitter designed for continuous monitoring of HFC and HFO refrigerant leaks in commercial and industrial environments. Part of the Evikon PluraSens family, it uses a stable long-life metal-oxide semiconductor sensor sensitive to a wide range of refrigerant compounds, with detection resolution down to 1 ppm and ranges to 2,500 ppm.

In data centres and server rooms, CRAC precision cooling units operate on refrigerant-based circuits. A refrigerant leak in an enclosed space can displace oxygen and create hypoxic conditions for personnel without any visible warning. The E2638-HFC provides continuous monitoring with configurable alarm thresholds, relay outputs for ventilation or alarm control, and RS485 Modbus RTU integration with BMS and fire safety systems.

Supplied by Indigi Power & Cooling across Australia.

Applications

• Data centres and server rooms (CRAC and CRAH refrigerant circuit monitoring)

• Precision cooling plant rooms

• Cold storage warehouses and refrigeration plants

• Skating arenas and large-scale refrigeration facilities

• Hotels and commercial HVAC plant rooms

• Any enclosed environment with refrigerant-based cooling equipment

Refrigerants Detected

The E2638-HFC sensor is sensitive to a wide range of HFC and HFO compounds including:

R-32, R-134a, R-404a, R-407c, R-410a, R-449a, R-454a, R-454b, R-454c, R-507, R-513a, R-514a, R-1234ze, and other halocarbon gases.

For applications requiring detection of a specific refrigerant to precise ppm accuracy, an optical NDIR sensor variant is available on request.

Technical Specifications

Key Features

• Stable long-life metal-oxide semiconductor sensor with greater than 5 year service life

• Sensitive to a wide range of HFC and HFO refrigerant compounds on a single unit

• Resolution of 1 ppm for precise early leak detection

• Two user-settable alarm setpoints for staged alarm and ventilation response

• Optional relay outputs for direct connection to ventilation fans, alarms, or fire panels

• Dual analog outputs (4-20 mA or 0-10 V) and RS485 Modbus RTU for BMS integration

• IP65 rated wall-mount enclosure for plant room and industrial environments

• NDIR optical sensor variant available on request for gas-specific precision measurement

• Power supply options from 12 VDC through to 230 VAC to suit existing infrastructure

Documents

• E2638-HFC Technical Datasheet (PDF)

• E2638-HFC User Manual (PDF)

• CE Declaration of Conformity (PDF)

Supply and Installation by Indigi Power & Cooling

Indigi Power & Cooling supplies Evikon MCI gas detection equipment and provides installation, commissioning, and BMS integration services for data centres, precision cooling environments, and commercial refrigeration plant rooms across Queensland, New South Wales, Victoria, and Papua New Guinea.

The E2638-HFC is installed as part of a complete refrigerant safety solution including sensor placement design relative to CRAC unit locations and air movement paths, relay wiring to ventilation or fire panels, and analog or RS485 integration to your building management system.

Related Products and Services

• Evikon E2673 Off-Gassing Detector (H2 and VOC)

• Gas Detection for Battery Rooms, Data Centres and BESS

• CRAC Unit Maintenance Services

• UPS Installation and Maintenance

• CRAC Units Explained