MGS-408 Gas Detection Controller

Centralized Controller for Refrigerant Safety Compliance

• Centralized power and alarming for up to 8 gas sensors
• Provides a single system with an easy means of achieving compliance with refrigeration safety standards
  such as EN 378 and ASHRAE 15
• Displays real-time status / gas measurement for connected gas detectors
• Modbus RTU interface, analog output and BMS / BAS connectivity
• 3 Relays and integrated horn / strobe (optional external beacon available)
• Retains alarm & status history of connected gas detectors on SD card

Bacharach's MGS-408 Gas Detection Controller centralizes the status of up to 8 gas detection channels in a single 
location. The digital display provides a real-time view of the gas concentration and status at each gas detection 
point. It also allows for the controller to be configured in minutes vie the intuitive menu system. A bank of LEDs 
corresponds to each connected gas detector; showing power, alarm status and fault indicators.

The MGS-408 can provide power for up to 8 gas detectors, which can be daisy-chained along with Modbus 
communication to each gas detector; simplifying and reducing the cost of installation. Integration is possible with 
Bacharach's MGS-400 series, MGS-250 and MGS-550 Gas Detector platforms; allowing for a flexible gas detection 
system design which can utilize the benefits of multiple gas detector types as required in different locations 
(machinery rooms, cold storage rooms, walk-in freezers and food preparation areas).

Combining the MGS-408 with Bacharach's range of gas detectors provides a single system with an easy means of 
achieving compliance with refrigeration safety standards such as EN 378 and ASHRAE 15.

Technical Specifications

User Interface				        Front Panel Push Buttons

Common Alarm Relays			        1 × Low Alarm, 1 × High Alarm

Fault Alarm Relays				        1 × Fault

Serial Ports				                1 × RS485 Modbus RTU Slave for BMS / BAS, 1 × RS485 Modbus RTU 
                                                        Master for Gas Detectors

Ambient Temperature Range			32 - 113°F (0 - 45°C)

Power					                100 - 240 VAC, 50/60 Hz, 80W (max)

Size (W×H×D) Approx.			        11.0” × 8.5” × 3.9” (280 × 215 × 100 mm)

Weight Approx.				        2lb, 12.1oz (1250 g)

Cable Entries				        2 × M20 / 1/2” conduit (power), 6 × M16 cable glands (signal)

Approvals					        EN 61010-1, CAS C22.2 61010-1, EN 50270, CE, FCC 15 Subpart B