Gas detector DG-71/M acetylene, hydrogen 10/30% DGW, p-p sensor, RS485

Gas detectors – reliable protection in industrial plants and public spaces

The DG-71/M gas detector is an advanced device designed for continuous monitoring of acetylene and hydrogen in the air. Control is performed by measuring the gas concentration, and if the permissible values are exceeded, the detector activates optical signaling and sends information to the central supervisory module via RS-485 communication. The device finds application in industrial plants, logistics centers, public utility facilities and other large rooms where there is a risk of explosive or toxic gas emissions.

Design and functionality

The DG-71/M detector is characterized by a modular design, allowing for the replacement of the sensor module. This construction facilitates maintenance, simplifies calibration and reduces operating costs. The replaceable semiconductor sensor allows the detector to be adapted to specific application needs. The device has a splash-proof housing made of high-impact ABS (IP44), which ensures its durability and resistance to environmental conditions. Two cable glands facilitate the connection of subsequent detectors in a network.

Advantages and benefits

• High measurement accuracy: The semiconductor sensor provides accurate and reliable measurements of acetylene and hydrogen concentration in the range of 10/30% LEL.
• Fast response: The short permeability time of gases through the sensor cover guarantees a quick reaction to changes in gas concentration.
• RS-485 communication: Enables integration with a digital gas detection system and remote monitoring of the device status.
• Easy maintenance: The replaceable sensor module facilitates servicing and calibration of the detector.
• Durable housing: The splash-proof ABS housing provides protection against mechanical damage and weather conditions.
• Calibration: All detectors are calibrated in their own GAZEX Calibrating Laboratory, operating in accordance with the PN-EN ISO/IEC 17025 standard (PCA accreditation No. AP150), which guarantees the accuracy and reliability of measurements.
• Versatility: The possibility of equipping with an additional cover made of steel pipes (AR-1d) or a housing for a ventilation duct (DG/w version) increases the scope of applications of the detector.

Applications

The DG-71/M detector is ideal in the following situations:

• Monitoring gas concentrations in industrial plants where welding or metal processing takes place.
• Control of hydrogen presence in laboratories and research facilities.
• Securing storage spaces where flammable or explosive gases are stored.
• Gas detection systems in public utility buildings, such as hospitals, schools or shopping centers.
• Monitoring gas concentrations in ventilation and air conditioning systems.

Technical data (summary)

The device is powered by 24V= voltage and its dimensions are 110 x 140 x 55 mm. It has an RS-485 output and a built-in LED optical signaling system. The detector is not intended for use in areas at risk of explosion of gases, vapors or dust – it is a device of conventional construction. Choosing the right sensor allows for precise adaptation of the device to the specific requirements of a given application.