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Smart ethylene oxide (C2H4O) detector EVIKON E2639 with a range of 0...100 ppm. Durable IP65-rated enclosure, 3 relays, RS485 Modbus communication and 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 | 230 VAC |
| Type of gas | C2H4O-Ethylene oxide |
| Weight | 0.50 kg |
E2639-EtO is a detector designed for monitoring high concentrations of ethylene oxide in 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 by an 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 any exceeded limit directly at the installation site – without the need to monitor a remote control system.
The E2639-EtO detector is intended for monitoring ethylene oxide in environments such as sterilisation facilities, hospitals, pharmaceutical plants, chemical stores, and other enclosed spaces where C₂H₄O may accumulate. The device helps prevent health risks associated with exposure to this gas and contributes to ensuring the safety of both personnel and operations.
Ethylene oxide is a colourless gas with a sweet ether-like odour, which is highly flammable and explosive at room temperature. It is produced primarily by the industrial synthesis of ethylene with oxygen and is used as an intermediate in the manufacture of ethylene glycol, plastics, and detergents, as well as a sterilising agent in healthcare. Even short-term exposure to ethylene oxide can cause irritation of the eyes and respiratory tract, headaches, or nausea, while long-term exposure is associated with an increased risk of cancer and damage to the nervous system.
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 simplify and speed up bus wiring for data readout to the higher-level system. No more inserting two conductors into a single 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 measurement at the time it leaves production.
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