Control panel MD-2.ZA

Gas detection alarm module

This alarm module, designed to work with gas detectors of the DEX/F, DG/F or DG type, is a key element of safety systems for gas installations. The device monitors and powers up to two detectors, enabling a quick response in the event of a dangerous gas concentration being detected. The MD-2.ZA is particularly useful in signaling and shut-off systems, meeting the requirements of the Minister of Infrastructure Regulation.

Features and functionality

The MD-2.ZA module offers a wide range of functions, ensuring reliable operation and safety:

• Detector control: Monitors the operation of two threshold gas detectors, ensuring continuous gas concentration control.
• Alarm signaling: Equipped with optical and acoustic signaling, it informs about exceeding the permissible gas concentration limits. Alarm status memory allows for event analysis.
• Control outputs: It has two 12V= alarm control outputs to power additional signaling devices and two contact outputs to control fans, contactors or information boards.
• Emergency output: The "FAILURE" contact output informs about the emergency state of the module or lack of power.
• Shut-off valve control: The version with a shut-off valve control output (MD-2.ZA) enables automatic gas shut-off in the event of a hazard – a key element of signaling and shut-off systems.
• Alarm inputs: Two alarm inputs allow integration with fire protection systems or a manual valve shut-off switch.
• Power supply: The module operates at 12V=, ensuring compatibility with various electrical installations.

Application and installation

MD-2.ZA finds application in:

• Gas detection systems: As a central element monitoring gas concentration in rooms threatened by explosion or poisoning.
• Active Gas Installation Safety Systems (ASBIG): Together with appropriate detectors and a shut-off valve, it forms a complete safety system.
• Public buildings: Provides safety in places with a high density of people, such as hospitals, schools or production halls.
• Industrial gas installations: Protects against hazards related to gas leaks in industrial plants.

Module installation should be carried out by a qualified installer in accordance with the manufacturer's operating instructions (GAZEX). Attention should be paid to the correct connection of power and signal cables and ensuring adequate protection against moisture and mechanical damage. It is also important to observe safety rules when working with electrical devices and gas installations.

Technical data (summary)

The MD-2.ZA module is characterized by the following parameters:

• Maximum number of detectors: 2
• Supply voltage: 12V=
• Alarm control outputs 12V=: 2
• Contact control outputs: 2
• Shut-off valve control output: Yes (MD-2.ZA version)
• Alarm inputs: 2
• Dimensions: 240 x 215 x 115 mm

This module is a reliable solution for ensuring safety in gas installations, combining functionality, precision and compliance with applicable standards.