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Smart ammonia (NH3) detector EVIKON E2639 with a range of 0...1000 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 | NH3 - Ammonia |
| Weight | 0.50 kg |
E2639-NH3 is a detector designed for monitoring high concentrations of ammonia in the 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 to immediately alert operators when the set limit is exceeded directly at the installation site – without the need to monitor a remote control system.
The E2639-NH3 detector is intended for monitoring ammonia in environments such as refrigeration and freezer installations, wastewater treatment plants, agricultural buildings (especially livestock housing), chemical plants, and other enclosed spaces where NH3 leakage or accumulation may occur. The device helps prevent health risks associated with exposure to this gas and contributes to the safety of both personnel and operations.
Ammonia is a colourless gas with a characteristic sharp, pungent odour which, unlike many other hazardous gases, makes it detectable even without a measuring instrument. Even relatively low concentrations of NH₃ can irritate the eyes, nose and respiratory tract, cause coughing or a burning sensation of the mucous membranes, while high concentrations can lead to severe lung damage or be life-threatening.
The E2639 detector combines the advantages of an autonomous safety device 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 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 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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