Gas detector DG-1R2/MR methane, 10/30% LEL, IR sensor

Gas detectors – reliable protection against hazards

Gas detector DG-1R2/MR is an advanced device designed for continuous monitoring of methane presence in rooms. It uses an optical sensor (Infra-Red) for precise measurement of gas concentration in the range of 10/30% LEL, ensuring fast and reliable detection of potential hazards. The device is equipped with two control relays and RS-485 communication with MODBUS RTU protocol, enabling integration with supervision and control systems.

Functionality and application

The DG-1R2/MR detector finds application in various industrial and public utility facilities, such as production plants, logistics centers or commercial buildings. It performs particularly well in large rooms where there is a risk of methane emissions. Thanks to the replaceable sensor module, the detector is easy to maintain and calibrate, which translates into lower operating costs. It is important to remember that the device has a standard construction and should not be used in potentially explosive atmospheres.

Key features and benefits

• Precise methane measurement: The Infra-Red sensor provides accurate and reliable detection of methane in the range of 10/30% LEL.
• RS-485 communication: Enables easy integration with supervision and control systems using the MODBUS RTU protocol.
• Two alarm thresholds: Allow for flexible adaptation of the detector to specific application requirements. Possibility of setting measurement mode for electrochemical and Infra-Red sensors.
• Replaceable sensor module: Facilitates maintenance, calibration and reduces operating costs. Modules are interchangeable with other models from the DG/F and DG/P series.
• Built-in relays: Two relays with NO/NC contacts allow direct control of alarm devices or ventilation systems.
• Solid construction: The housing made of high-impact ABS/PC ensures durability and resistance to mechanical damage (IP54 protection class for electronic circuits and IP44 for sensor cover).
• Software configuration: Detector settings can be configured using the dedicated "DETnet View" software.
• Calibration: All detectors are calibrated in their own GAZEX Calibrating Laboratory accredited in accordance with the PN-EN ISO/IEC 17025 standard.

Additional functions, such as alarm status history, semi-automatic addressing in a digital network and screwless terminals facilitate the installation and operation of the detector. Two cable glands allow easy connection of subsequent detectors in a network.