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Smart Gas Detector for Ammonia EVIKON E2639-NH3-5K

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Smart Gas Detector for Ammonia EVIKON E2639-NH3-5K

EVIKON
  • Product code: E2639-NH3-5K
  • Manufacturer code: E2639-NH3-5K
  • Warranty: 2 years

Smart ammonia (NH3) detector EVIKON E2639 with a range of 0...5000 ppm. Durable IP65 protection, 3 relays, RS485 Modbus communication and built-in LED/audible alarm. More information

  • Availability

    Out of stock - can be requested

  • Out of stock  
Price excluding VAT € 608,00
Price with VAT 21 % € 735,68

Parameters and catalogs

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 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, which immediately alert operators to an exceeded set limit directly at the installation site – without the need to monitor a remote control system. 

Typical applications

The E2639-NH3 detector is intended for monitoring ammonia in environments such as refrigeration and freezer installations, wastewater treatment plants, agricultural buildings (especially livestock facilities), 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.

Amoniak – Wikipedie

Ammonia (NH₃)

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, causing coughing or a burning sensation in the mucous membranes, while high concentrations can lead to severe lung damage or be life-threatening.

Smart communication – ideal for fire alarm systems

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:

  • Autonomy: 3× volt-free SPDT relays for direct control of equipment or safe system shutdown.
  • Connectivity: Dual RS485 Modbus RTU interface for digital export of measured data in real time to a higher-level system (BMS).
  • Control: 2× 4–20 mA analogue outputs intended for precise control of the ventilation frequency inverter.
Detektor E2639
Snadná instalace

Easy installation

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 a single terminal. Thanks to the M20 cable glands, all required outputs can be connected conveniently.

Factory settings:

  • Measuring range: 0...5000 ppm
  • ALARM1 (RE1): 1250 ppm
  • ALARM2 (RE2): 2500 ppm
  • ALARM3 (RE3): sensor fault
    • Automatic alarm reset after ventilation
  • Analogue outputs: 4-20mA = 0...5000 ppm
  • Modbus RTU address: Baud rate 9600, Parity None, Stop bits 1, Slave ID 1

Key features

  • Sensor type: Electrochemical sensor
  • Measuring range: 0...5000 ppm
  • Resolution: 1 ppm
  • T90 response time: approx. 60 s
  • Recommended recalibration interval: 6–12 months
  • Estimated sensor lifetime: > 2 years
  • 1-year warranty on the sensor itself (2 years on the entire device excluding the sensor)

Calibration certificate

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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