Gas detector DG-73.EN/M hydrogen (selective), 10/20/30% DGW, sensor p-p, RS485, economical

Gas Detectors – Reliable Protection and Monitoring

The DG-73.EN/M gas detector is an economical, digital device designed for continuous monitoring of hydrogen presence in enclosed spaces. Monitoring is performed through cyclic measurement of gas concentration; upon exceeding predefined thresholds, the detector triggers an optical alarm and transmits a signal to the supervisory module via RS-485 network. This device performs excellently in gas detection systems, ensuring safety and operational efficiency.

The DG-73.EN/M detector utilizes a selective semiconductor sensor, guaranteeing precise hydrogen concentration measurements in the range of 10-20-30% DGW. The replaceable sensor module simplifies maintenance, streamlines calibration, and reduces operating costs—a solution highly valued by both installers and end users.

• Versatile application: Ideal for industrial plants, logistics centers, public utility facilities, and any areas at risk of hydrogen emission.
• RS-485 communication: Enables remote supervision, identification, and diagnostics of detectors in a network using the MODBUS RTU protocol.
• Replaceable sensor module: Facilitates easy maintenance and calibration, lowering operational expenses.
• Three alarm thresholds: Allow precise adjustment of the detector’s response to specific operating conditions.
• Robust housing (IP43): Protects the device against dust and moisture, ensuring reliable operation even in harsh environments.
• Configuration via DETnet View software: Enables easy customization of detector settings to individual requirements (dedicated configuration software available from the manufacturer).
• Calibration: All detectors are calibrated in GAZEX’s own Accredited Calibration Laboratory (accredited according to PN-EN ISO/IEC 17025, accreditation no. PCA AP150), ensuring measurement accuracy and compliance with applicable standards.

The DG-73.EN/M detector is compatible with the GAZEX Digital Gas Detection System, enabling integration with other devices and the creation of a comprehensive safety monitoring system. The device features two cable entries, facilitating serial connection of additional detectors in a network—allowing the deployment of an extended monitoring system covering large areas or complex industrial installations.

The device features a standard RS-485 output, built-in optical signaling, and requires a 24V DC power supply. Its dimensions are 82 x 95 x 68 mm.

Designed for use in locations requiring continuous hydrogen concentration monitoring—from industrial halls to research laboratories and hydrogen refueling stations—this detector, thanks to its reliability and measurement precision, serves as a critical component of safety systems across a wide range of industrial and commercial applications.