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SKU: H6401-0500

MSA Bacharach MGS-450 Gas Detector

SKU: H6401-0500

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MGS-450 Gas Detector is used for detection of refrigerants, toxic and combustible gases.

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Description

MSA Bacharach MGS-450 Gas Detector

Optional IP41 or IP66-rated enclosures protect the device from dust and water ingress, while plug and play pre calibrated sensor modules make sensor replacement quick and straightforward. Temperature-compensated measurements reduce false alarms and optimise accuracy, making the MGS-450 suitable for cold rooms and freezers down to -40°C.

The MSA Bacharach MGS-450 Gas Detector features configurable analogue outputs (4-20mA, 0-5V, 0-10V, 1-5V, or 2-10V) and Modbus communications, allowing seamless integration with Bacharach’s MGS-408 controller or third-party BMS / BAS control systems. Three user-configurable relays for fault, low, and high alarms can trigger external beacons, sounders, ventilation, or other safety measures.

The MGS-400 mobile app (available for Android and iOS) lets users connect via Bluetooth® for easy commissioning, monitoring, and maintenance, all without specialty tools or extensive training.

For more information, get in contact via the contact us form or call 02920 759 683.

Description

MSA Bacharach MGS-450 Gas Detector

Optional IP41 or IP66-rated enclosures protect the device from dust and water ingress, while plug and play pre calibrated sensor modules make sensor replacement quick and straightforward. Temperature-compensated measurements reduce false alarms and optimise accuracy, making the MGS-450 suitable for cold rooms and freezers down to -40°C.

The MSA Bacharach MGS-450 Gas Detector features configurable analogue outputs (4-20mA, 0-5V, 0-10V, 1-5V, or 2-10V) and Modbus communications, allowing seamless integration with Bacharach’s MGS-408 controller or third-party BMS / BAS control systems. Three user-configurable relays for fault, low, and high alarms can trigger external beacons, sounders, ventilation, or other safety measures.

The MGS-400 mobile app (available for Android and iOS) lets users connect via Bluetooth® for easy commissioning, monitoring, and maintenance, all without specialty tools or extensive training.

For more information, get in contact via the contact us form or call 02920 759 683.

Technical Specification
Accuracy: SC - < -10%/+15% of Full-Scale; IR, Cat, EC - < ±5% of Full-Scale
Alarm: Integrated Audible / Visual Alarm
Altitude: 0 to 6,560 ft (2,000 m)
Ambient Temperature: -40 to 122°F (-40 to +50°C)
Buzzer Volume: 80 dB @ 10 cm
Configurable Relays: 3
Humidity: 5 to 90% RH, non-condensing
Measuring Range: Sensor Dependent (See Datasheet)
Minimum Detection Limit: Sensor dependent; 50ppm refrigerants
Operating Voltage: 24 VDC
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FAQs
What gases can the MGS-450 detect?

The MGS-450 supports detection of a wide range of gases, including:

  • Refrigerants: R-22, R-32, R-1234yf, R-1234ze, R-134a, R-404A, R-407A/C/F, R-410A, R-422A/D, R-427A, R-434A, R-448A, R-449A, R-450A, R-452A/B, R-454A/B/C, R-455A, R-507A, R-513A

  • Hydrocarbons: R-50 (Methane), R-600 (Butane), R-290 (Propane)

  • Toxic & Industrial Gases: Carbon Monoxide (CO), Nitrogen Dioxide (NO₂), Oxygen (O₂), Ammonia (R-717), Carbon Dioxide (R-744)

Does the MGS-450 support A2L refrigerants?

Yes, the MGS-450 is fully compatible with A2L low-flammability refrigerants, ensuring safe and accurate monitoring.

How accurate is the MGS-450?

  • SC Sensors: -10% / +15% of full scale

  • IR, Catalytic, and Electrochemical Sensors: ±5% of full scale

What alarms does the MGS-450 feature?

The MGS-450 includes an integrated audible and visual alarm, with an 80 dB buzzer at 10 cm. It also has three configurable relays (2 alarm relays and 1 fault relay) for external alert systems.

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Product: MSA Bacharach MGS-450 Gas Detector