Control module MDD-1 1 input DEX/F or DEX/P, “bus” type, standard enclosure IP54

Control module MDD-1 is a key element of gas detection systems, enabling the integration of a single measuring or threshold detector with the RS485 digital bus. The device acts as an interface between the detector and the master system, while simultaneously providing voltage and power supply limitation. The module should be mounted outside the potentially explosive zone.

Functionality and application

The MDD-1 module is compatible with DEX/P, DG/P, DEX/F, DG/F and DG detectors. This allows for the construction of flexible and scalable gas monitoring systems. In the Digital Gas Detection System (DGDS), the module is treated as a standard detector, which simplifies system configuration and management. Non-contact testing and signaling of detector signal wire failure increase the reliability of the entire system. The module is powered by 24V=.

Construction and mounting

The MDD-1 module is characterized by a solid construction and a tight ABS/PC housing, which ensures resistance to mechanical damage and environmental conditions. The connection terminals are screwless and removable, which greatly simplifies and speeds up installation and maintenance. The ability to connect stranded wires without the need for ferrules further simplifies the installation process. The module can be plugged into any location on the RS-485 digital bus, and can also be set as a network terminator. Configuration of settings is done using the dedicated "DETnet View" software, available on the Gazex website.

Benefits for the installer and user:

• Fast installation: Screwless terminals and the ability to connect stranded wires minimize installation time.
• Flexibility: Compatibility with various types of detectors allows the system to be adapted to specific needs.
• Reliability: Signaling of signal wire failure and non-contact testing increase system safety.
• Easy configuration: Dedicated "DETnet View" software simplifies system configuration and management.
• Scalability: The ability to plug into any location on the digital bus makes it easier to expand the system in the future.
• Simple diagnostics: The module signals failures, which facilitates the location of problems in the gas detection system.
• Galvanic isolation of the RS-485 port: Provides protection against interference and overvoltage in the communication network.