Gas detector DG-0E.NO2/M NO2, nds/ndsch, electrochemical sensor

Gas detectors of the DG/M series – reliable air quality control

The DG/M gas detectors are devices designed for continuous monitoring of gas concentrations in various environments – from industrial plants and logistics centers to public utility facilities. They serve to detect dangerous levels of toxic or explosive gases, ensuring safety and enabling rapid response in the event of exceeding permissible norms. These detectors are particularly useful in large rooms where the risk of harmful substance emissions is increased.

Design and operating principle

The DG/M detectors utilize an interchangeable module with a semiconductor, electrochemical, or optical (Infra-Red) sensor, which simplifies maintenance and reduces operating costs. When exceeding defined concentration thresholds is detected, the detector activates optical signaling and sends information to the digital supervisory module via the RS-485 network with the MODBUS RTU protocol. The built-in microprocessor ensures stable and reliable operation of the device, and the thermal compensation system minimizes the impact of temperature changes on measurement accuracy. Additionally, the detector has a history of alarm states, which facilitates event analysis and identification of potential problems.

Application and user features

This specific model, DG-0E.NO2/M, is dedicated to the detection of nitrogen dioxide (NO2). Its application includes monitoring air quality in places exposed to emissions of this gas – e.g. near busy roads, in chemical plants or in rooms with heating systems burning fossil fuels.

• Interchangeable sensor module: Enables quick replacement of a damaged sensor or adaptation of the detector to other gases.
• RS-485 communication: Provides easy integration with monitoring and control systems.
• Optical signaling: Clear alarm signaling informs about exceeding permissible gas concentrations.
• Splash-proof housing (IP44): Protects the device from moisture and dust, allowing installation in harsh environmental conditions.
• Two cable glands: Facilitate connecting subsequent detectors in a network.
• Configuration via "DETnet View" software: Allows precise adjustment of the detector settings to specific application needs (available on the manufacturer's website).
• Calibration in an accredited laboratory: Guarantees measurement accuracy and reliability (compliance with PN-EN ISO/IEC 17025 standard).

The DG/M detectors are of conventional construction and cannot be used in areas at risk of explosion of gases, vapors or dusts – this should be taken into account when choosing the installation location.