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Smart refrigerant detector (R1234ze) EVIKON E2639 with a range of 0...2500 ppm. Durable IP65 protection, 3 relays, RS485 Modbus communication and a built-in LED/audible alarm. More information
Out of stock - can be requested
| Detector type | Stationary |
| Equipment | Siren 85dB, LED |
| IP Rating | IP 65 |
| Output signal | ModBus RS485, 3x SPDT relay, 2x Analogue output 4-20mA |
| Power Supply | 14...36 VDC |
| Type of gas | HFC Refrigerants - R1234ze |
| Weight | 0.50 kg |
Evikon E2639-HFC(R1234ze) is a detector designed for monitoring high concentrations of R1234ze refrigerant in ambient air. The device is equipped with a temperature-compensated sensor that ensures reliable detection and stable measurement, and it is housed in a wall-mounted enclosure with IP65 protection. The E2639 features three SPDT relays with a maximum load of 250 VAC, 5 A. Two relays are used for so-called two-stage detection. The third relay indicates a sensor fault. Communication with higher-level systems is provided via the RS485 Modbus RTU digital interface, complemented by two 4–20 mA analogue outputs. In addition, the device includes four LEDs and an audible alarm, which immediately alert operators to an exceeded set limit directly at the installation site – without the need to monitor a remote control system.
The E2639-HFC detector is intended for monitoring R1234ze refrigerant leaks and is suitable for commercial and industrial applications such as air conditioning systems, heat pumps, chillers, air dryers, freezers, or dispensing units. The device is designed for reliable detection of this new-generation refrigerant with a very low GWP, thereby supporting compliance with safety and environmental standards in the given environment.
R1234ze is a synthetic refrigerant with a faint ethereal odour, developed as an environmentally friendly replacement for traditional refrigerants with a high global warming potential. Unlike its predecessors, it has an extremely low GWP and a very short atmospheric lifetime. Although it is classified as highly flammable, in the event of a leak in enclosed spaces it may reach explosive concentrations, and therefore its presence requires reliable detection.
The E2639 detector combines the advantages of an autonomous safety element and an intelligent communication node. It is designed for seamless integration with fire alarm systems (EPS) and offers a wide range of outputs for comprehensive control:
The E2639 is equipped with three M20 cable glands and a dual terminal block for Modbus RTU. The duplicated Modbus RTU terminals help simplify and speed up bus wiring for connection to a higher-level system. No more inserting two conductors into one terminal. Thanks to the M20 cable glands, all required outputs can be connected conveniently.
Factory settings:
Each detector package includes the original manufacturer's calibration certificate in English, confirming the accuracy and correctness of the measurement at the time of leaving the factory.
We respond to your product queries as quickly as possible, usually within 24 hours.
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