Gas detector DG-8R/MR CO2, 0.5/1.5 %v/v, IR sensor

Gas detectors – reliable protection and control

The DG/MR series detectors are advanced devices designed for continuous monitoring of gas presence in various environments – from industrial plants and logistics centers to public utility facilities. These devices measure the gas concentration in the surrounding air and, when defined thresholds are exceeded, activate optical signaling, activate built-in relays, and send information to the central monitoring system via the RS-485 network.

Versatile application and flexibility

DG/MR detectors are used in large rooms where there is a risk of emission of toxic or explosive gases. Thanks to the ability to cooperate in the Digital Gas Detection System, they are an integral part of comprehensive safety systems. A key feature of these devices is the replaceable modular sensor design, which facilitates maintenance, calibration and reduces operating costs. The ability to select a sensor for a specific application allows for precise adaptation of the detector to specific needs.

Key features and benefits

• Replaceable sensor module: Allows for quick replacement of a damaged sensor or adaptation of the detector to detect another gas without the need to replace the entire device.
• RS-485 communication with MODBUS RTU protocol: Provides easy integration with automation and monitoring systems.
• Two alarm thresholds or measurement mode: Allows for flexible configuration of the detector depending on the application requirements.
• Built-in relays: Enable direct control of actuators, such as shut-off valves or ventilation systems.
• Optical signaling: Clear visual information about the alarm status.
• Thermal compensation circuit: Ensures measurement stability under varying temperature conditions.
• Semi-automatic addressing: Facilitates network configuration without the need to open the housing.
• Screwless terminals: Simplify and speed up the electrical installation process.
• Configuration via DETnet View software: Allows for remote management of detector settings and monitoring of its operation.
• Calibration in an accredited laboratory: Guarantees the accuracy and reliability of measurements (compliance with PN-EN ISO/IEC 17025 standard).

Technical specifications for the DG-8R/MR model

The DG-8R/MR detector is equipped with an optical sensor (Infra-Red) designed to detect carbon dioxide (CO2) in the concentration range of 0.5/1.5 %v/v. The device is powered by 24V= voltage, and its compact dimensions (110 x 140 x 55 mm) allow for discreet installation in various locations. The device has two switching output contacts and RS-485 communication. The built-in optical signaling informs about the alarm status of the detector.

Practical applications

The DG-8R/MR detector is ideal for the following applications:

• Monitoring CO2 concentration in industrial and warehouse premises.
• Air quality control in public utility facilities (schools, offices, sports halls).
• Ventilation systems – controlling the operation of fans based on CO2 concentration measurement.
• Protection against carbon dioxide poisoning in enclosed spaces.

Please remember that DG/MR detectors cannot be used in places exposed to the explosion of gases, vapors or dusts – these are devices of conventional construction.