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Smart sulphur dioxide (SO2) detector EVIKON E2639 with a range of 0...50 ppm. Durable IP65-rated enclosure, 3 relays, RS485 Modbus communication, Wi-Fi module, built-in LED and 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 | SO2 - Sulphur Dioxide |
| Weight | 0.50 kg |
E2639-SO2 is a detector designed for monitoring high concentrations of sulphur dioxide 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 250VAC 5A. 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. The version with a Wi-Fi module allows wireless connection of a smartphone or tablet for configuration and calibration via a web interface – with no app installation required. 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-SO2 detector is intended for monitoring sulphur dioxide in environments such as wineries and food processing facilities, where SO₂ is used as a preservative, as well as thermal power plants and industrial boiler houses, sulphuric acid production plants, paper mills and pulp mills, refrigeration equipment, and other enclosed spaces where SO₂ may accumulate.
Sulphur dioxide is a colourless gas with a sharp, choking odour that is easily recognisable even at low concentrations. It is produced mainly by the combustion of sulphur-containing fossil fuels such as coal and oil, and also during industrial processes, for example in the production of sulphuric acid or metal smelting. Even short-term exposure to sulphur dioxide can cause irritation of the eyes, nose and respiratory tract, while higher concentrations are particularly dangerous for people with respiratory conditions.
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:
Compared to the standard version, the E2639-WF has an integrated WiFi module that turns calibration and configuration into a matter of minutes – without 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.
Factory settings:
Each detector package includes the manufacturer’s original 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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