Related Manuals for MSA BACHARACH MGS-401
Summary of Contents for MSA BACHARACH MGS-401
- Page 1 BACHARACH MGS-401 Entrance Monitor for Commercial & Industrial Applications Fixed Gas Detection User Manual P/N: 1100-2527 Revision 1.0...
- Page 2 MSA Bacharach, Inc. warrants to buyer that it will convey good title to this product. MSA Bacharach’s liability and buyer’s remedy under this warranty of title are limited to the removal of any title defects or, at the election of MSA Bacharach, to the replacement of this product or parts thereof that are defective in title.
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Page 3: About This Manual
1. Introduction 1.1 About this Manual Thank you for investing in a MSA Bacharach MGS-401 Entrance Monitor. To ensure operator safety and the proper use of the controller, please read the contents of this manual for important information on the operation and maintenance of the instrument. -
Page 4: General Safety Statements
DO NOT continue to use this equipment if there are any symptoms of damage or improper function. In the case of such an occurrence, de-energize the power supply and contact a qualified repair technician or the nearest MSA Bacharach Service Center. Failure to follow these warnings can result in serious bodily injury or death. -
Page 5: System Guidance
BACHARACH MGS-401 User Manual Warning: This instrument indicates gas concentration(s) that may be present in the space where the attached gas detectors are located. The primary instrument to alarm personnel of a low alarm or high alarm concentration level are the gas detectors that are monitoring the space. -
Page 6: Design Features
BACHARACH MGS-401 User Manual 2.3 Design Features Input Power 24VAC/DC, +20%, 7W max. Enclosure Rating IP54 Operating Temperature C to 50 Relative Humidity 0 to 95% non-condensing Altitude 6560 ft (2000 M) RS485 Modbus RTU Client for Gas Detectors Communications... -
Page 7: Front Panel
BACHARACH MGS-401 User Manual 2.4 Front Panel Figure 2-4 - Front Panel Layout Front Panel Description Integrated visual alarm in bezel Controller Power & Fault LEDS Mute alarm button >80dB Alarm ½ “ NPT Cable Glands (x2) - Page 8 BACHARACH MGS-401 User Manual 2.5 Back of Lid Components Not populated Figure 2-5 - MGS-401 Under Lid Connections and Configuration Component Description 24VAC/DC Input/Output Modbus to Gas Detectors Modbus to BMS Remote Silence Alarm Input Forced Alarm Input Aux. Buzzer Output...
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Page 9: Installation
Remove the top of the enclosure. Visually inspect the interior of the enclosure for loose components that may have become dislodged during shipment. If damage is discovered, please contact a qualified repair technician or the nearest MSA Bacharach Service Center for assistance. 3.3 Suitable / Appropriate Locations The MGS-401 Entrance Monitor is design for use in mechanical rooms, warehouses, cold storage, or freezers to help comply with international safety standards (EN 378, ASHRAE 15, CSA-B52). -
Page 10: Power Wiring
BACHARACH MGS-401 User Manual lengths and following considerations: • Environment: the full range of environmental conditions when selecting a location. • Accessibility: the degree of accessibility required for maintenance purposes when selecting a location. Using a 5/32″ (4 mm) hex key / Allen wrench (not included), remove the lid Set the lid and rubber gasket aside to be reinstalled later. - Page 11 BACHARACH MGS-401 User Manual higher level BMS controller and a Modbus Sensors for connection to the monitors sensor(s). Follow standard Modbus practices for these connections. The Modbus configuration to the BMS and the Sensors or gas detectors must be completed. See section 4.1, MGS-401 Configuration for Modbus settings.
- Page 12 BACHARACH MGS-401 User Manual MGS-401 Configuration The configuration of the MGS-401 is done with (3) banks of DIP switches on the back of the MGS-401 lid. Through these switches the user can configure the Modbus settings, MGS-401 Entrance Monitor as well as many features of the perimeter strobe, on-board audible sounder as well as input and output configurations.
- Page 13 BACHARACH MGS-401 User Manual network. The Modbus ID is a combination of all three switch positions. The default setting for the Modbus ID is ‘80’ or OFF, OFF, OFF. MGS-401 Configuration 4.2.1 The MGS-401 can be configured as a ‘Controller’ or as a ‘Listener’. If there are no other Modbus ‘controllers’...
- Page 14 BACHARACH MGS-401 User Manual Bank 3, Switch 6 is used to ENABLE the Silence Alarm input. The factory default is ‘DISABLED’ or OFF. Bank 3, Switch 7 is used to ENABLE the Forced Alarm Input. The factory default is ‘DISABLED’ or OFF.
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Page 15: Operation
BACHARACH MGS-401 User Manual 5.2 Operation 5.2.1 During normal operation the MGS-401 will monitor the connected gas detector(s) and display the monitored location gas concentration as provided by the gas detectors in the location. If the gas detectors in the monitored area respond to any preset alarm level or a fault occurs on the system the MGS-401 Entrance Monitor will display that information on the LCD and respond with audible and visual alarms, configured relay response and other countermeasures that are connected or configured. -
Page 16: Troubleshooting
BACHARACH MGS-401 User Manual Trouble shooting 6.1.1 The System screen can be accessed by pressing the Silence button on the MGS-401 front panel (3) consecutive times within 3 seconds. The System screen will show some of the configuration of the MGS401. -
Page 17: Modbus Map
BACHARACH MGS-401 User Manual Modbus Map... - Page 18 BACHARACH MGS-401 User Manual...
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Page 19: Part Numbers
Merchandise Authorization Number (RMA #). All returned goods must be accompanied by an RMA #. Pack the equipment securely (in its original packing, if possible), as MSA Bacharach cannot be held responsible for any damage incurred during shipping to our facility.
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