Field Instruments

General

The MSA Bacharach® MGS-550 leak detector combines electrochemical, semiconductor, catalytic bead and infrared sensors into one platform to support leak detection for the new low GWP (Global Warming Potential) refrigerant blends as well as natural refrigerants to enable gas leak detection in the often harsh environments of industrial refrigeration.

The MGS-550 can easily be integrated into any building management system (BMS). The Modbus RTU interface allows the user to program and configure the unit remotely through the BMS. Remote access gives complete control to the user when using Modbus. Alternatively, electrical current or volt analog output provides an industry standard reading using 4-20mA.

Having three integrated relays within each instrument reduces the need for having to wire alarm devices back to a central control system. Because of the integrated relays, the MGS550 can be operated as a stand-alone system. Each relay can be individually programmed to trigger alarm devices and actions separately or as a redundant system.

The straightforward menu structure is identical regardless of the type of sensors used, reducing the costs and amount of time for training required upon installation or during maintenance.

The MGS-550 offers the flexibility of adding a second sensor at any point in time without the need for any additional controllers. Any sensor can be remotely mounted from the main instrument to a distance of 5 meters or 15 feet. It meets the requirements of EN 378 and ASHRAE 15.

Features

• One or two sensor capability Detects two gases and/or in two locations with one instrument
• Remote sensor capabilities Flexible placement in hard to reach areas
• Analog and digital interface Ease of integration with multiple control devices
• On-board relays Connects to local alarm devices for saving costs on installation
• Magnetic wand Non-intrusive configuration and calibration
• Status indicator and LED display Provides at-a-glance status overview and comprehensive direct user interface
• Optional MGS-408 Controller Create an independent, centralized alarm system with up to 6 gas.

Specifications

• Make: MSA
• Model: 6600-8843
• Sensor Type: Semiconductor
• Detectable Gas: R404A
• Sensor Range: 0-1,000 ppm
• Enclosure Ratings: IP66

Note: Local sensing head to be used with Bacharach MGS-550 base unit 6600-8000 as an add-on or replacement local sensor.

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