MSA Bacharach MGS-402 Gas Detection Controller w/Sounder

SKU: 6702-8021

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MGS-402 Gas Detection Controller

2-Channel Controller for Refrigerant, Toxic and Combustible Gas Detection

MSA Bacharach’s MGS-402 Controller centralizes the status of two gas detectors to enable compliance with refrigeration safety codes (ASHRAE 15, EN 378, CSA-B52).

  • Designed for operation in refrigeration applications with an IP66-rated enclosure to protect from dust and water ingress (suitable for use in cold rooms and freezers down to -40°C)
  • MGS-410 Gas Detectors may be installed in hard-to-reach / elevated locations (distances up to 305m from the controller)
  • Centralized power and communications for up-to two connected MGS-410 gas detectors
  • Tri-color LED indicators provide “at-a-glance” system / alarm status
  • Two configurable Analog outputs (4-20mA, 0-5V, 0-10V, 1-5V or 2-10V) and Modbus communications (slave) for integration with Bacharach’s MGS-408 controller or third-party BMS / BAS control systems
  • Three user-configurable relays (fault, low and high alarm) may be used to activate external beacons / sounders, ventilation or other countermeasures
  • Integrated audible / visual alarms with push button silence for refrigeration safety compliance – no additional hardware

MSA Bacharach’s MGS-402 Gas Detection Controller centralizes the status of up to two gas detectors, provides a complete package for your safety compliance application. On the front panel of the MGS-402 a bank of LEDs corresponds to each connected gas detector; showing power, alarm status and fault indicators. The MGS-402 can provide the power requirements for to up to two gas detectors, which can be daisy-chained with Modbus communication to each gas detector; simplifying and reducing the cost of installation.

The MGS-402 can be integrated with MSA Bacharach’s MGS-410 gas detector; 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).

Product Specifications

  • Sensors: 2
  • Enclosure Rating: IP66
  • User Interface: Configuration through DIP switches
  • Power: 100 - 240 VAC, 50/60 Hz, 20 W (max.)
  • Analog Communications: 4 to 20 mA, 1 to 5 V, 2 to 10 V
  • Digital Communications: Modbus RTU via RS-485
  • Operating Voltage: 100 to 240 VAC, 50/60 Hz
  • Relay Rating: 2 Alarm relays, 1 Fault relay SPDT
  • Wiring: 10 A @ 240VAC
  • Alarm: Integrated Audible / Visual Alarm
  • Ambient Temperature: -40 to 122°F (-40 to +50°C)
  • Humidity: 5 to 90% RH, non-condensing
  • Altitude: 0 to 6,560 ft (2,000 m)
  • Status Indicator: Tri-color LED (green, red, orange) - Controller status, channel status
  • Buzzer Volume: 80 dB @ 10 cm
  • Product Dimensions: 6.5” × 6.5” × 3.4” (165 × 165 × 87 mm)
  • Product Weight: 1 lb, 11.07 oz (758 g)
  • Approvals: CE, UL / CSA / IEC EN 61010-1
  • Internal Memory: 16GB microSD Card
  • Warranty: 1 Year
  • Country of Origin: United States
  • Part Number: 6702-8021

NOTE: Includes External Beacon/Sounder