Typical applications

The E2639-NH3 detector is intended for monitoring ammonia in environments such as refrigeration and freezer equipment, 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 ensuring the safety of both personnel and operations.

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.

WiFi calibration from any smart device

Compared to the standard version, the E2639-WF has an integrated WiFi module that turns calibration and configuration into a matter of minutes – with no tools and without removing the cover. The access point is activated using a magnetic key, and the configuration interface opens in the browser of a phone or tablet, with no need to download any application. The interface is password-protected with separate access levels for end users and integrators, so everyone works only within their own section of the settings.

Key features

• Sensor type: Electrochemical sensor
• Measuring range: 0...300 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 measurement at the time of leaving the factory.