Field Instruments

General

The MSA Bacharach® MGS-400 Gas Detectors makes compliance with mechanical equipment room and refrigeration safety codes simple and easy, saving time and money on equipment and installation. Using the MGS-400 App, users can intuitively use, commission and maintain their gas detection system without the need for specialty training or tools. Pre-calibrated sensor modules simplify maintenance, take minutes to exchange and do not require the use of calibration gas. The MGS-400 sensors can trigger additional audio-visual alarms and act as a standalone gas detection system, or integrate easily into a BMS / BAS or with MSA’s optional Bacharach® MGS-408 Gas Detection Controller.

Features

• Mobile App Interface Quick, easy and intuitive commissioning, configuration and maintenance requires no special training. No tools required to set alarm levels and behavior.
• Pre-calibrated Sensors Fast and easy sensor maintenance. Eliminates need for calibration gas.
• Semi-automated Calibration Easy calibration process with mobile app. Generate calibration certificates for documentation.
• Remote Sensor Option Locate the sensor element in hard-to-reach areas and the base unit where convenient for electrical and communication wiring (MGS-460)
• Temperature-Compensated Measurement Mitigates false alarms and optimizes accuracy in refrigeration applications
• Low Temperature Performance Suitable for use in cold rooms and freezers down to -40° F/C.
• Digital Communications Integrate with local BMS/BAS via Modbus RTU
• Analog Outputs For current or voltage output to legacy systems (MGS-450/460)
• Relay outputs 3 relays available for alarm and fault events to active horn/strobes and ventilation (MGS-450, MGS-460)
• Audio & Visual Alarms On-board alarm notification supports compliance with ASHRAE 15 / EN 378
• Multiple Cable Entries and Terminals Quick and easy installation of all wiring; daisy-chain power and digital communications.

Specifications

• Make: MSA
• Model: 6302‐1159
• Sensor Type: Semiconductor
• Detectable Gas: R434A
• Sensor Range: 0‐1,000 ppm
• Analog Outputs: 4 to 20 mA, 0 to 5 V, 0 to 10 V, 1 to 5 V, 2 to 10 V
• Digital Communication: Modbus RTU
• Power Supply: 24V AC or DC (auto selecting), 4W (max)
• Audible Alarm: Buzzer, 72db @ 10cm
• Status Indicator: Single Tri-color LED (green, red, orange)
• Configurable Relays: SPDT, Low (1), High (2), Fault (3)
• Enclosure Ratings: IP41
• Humidity: 5 to 90 % RH, non-condensing
• Pressure: 23.6 to 32.5 inch Hg / 800 to 1,100 mbar
• Approvals: CE, UL / CSA / IEC EN 61010-1

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