MGS-450 Gas Detector
Used for detection of refrigerants, toxic and combustible gasesBacharach’s MGS-450 Gas Detector makes compliance with refrigeration safety codes (ASHRAE 15, EN 378, CSA-B52) simple and effective, saving time and money on equipment and installation.
- Optional IP41 or IP66-rated enclosures protect from dust and water ingress
- Plug-and-play pre-calibrated sensor modules allow for quick, simple sensor replacement
- Temperature-compensated measurements mitigate false alarms and optimize accuracy in refrigeration applications (suitable for use in cold rooms and freezers down to -40°C)
- Configurable analog output (4-20mA, 0-5V, 0-10V, 1-5V or 2-10V) and Modbus communications 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 for refrigeration safety compliance – no additional hardware required
- MGS-400 mobile app (available for Android and iOS) allows users to interface via Bluetooth® with gas detector for easy commissioning and maintenance without specialty tools or training
SPECIFICATIONS
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)
Analog Communication : 4 to 20 mA, 0 to 5 V, 0 to 10 V, 1 to 5 V, 2 to 10 V
Approvals / Standards : CE, UL / CSA / IEC EN 61010-1
Buzzer Volume : 80 dB @ 10 cm
Country of Origin : United States
Digital Communications : Modbus RTU via RS 485
Enclosure Rating : IP41
Humidity : 5 to 90% RH, non-condensing
Measuring Range : Sensor Dependent (See Datasheet)
Operating Voltage : 24 VDC
Power : 19.5 to 28.5 VDC or 24 VAC ±20%; 4W
Product Dimensions (L×W×H) : IP41: 6.5” × 6.5” × 3.0” (165 × 165 × 77 mm)
Product Weight : 1lb, 1oz (480 g)
Relay Rating: 2 Alarm relays, 1 Fault relay SPDT
Resolution : Sensor & Gas Concentration Dependent (See Datasheet)
Sensitivity/Minimum Detection Limit : Sensor Dependent (See Datasheet)
Sensor Channels : 1
Sensor Type : Sensor Dependent (See Datasheet)
User Interface : MGS 400 Series App
Warranty :1 Year
Wiring : 1 A @ 30 VDC
APPROVALS
Approvals subject to change without notice and may differ based on configuration, part number and/or country. Contact Customer Service or check approval label on product for specific approval information.
EU (DoC)
EU (DoC) A1 Refrigerants and CO2
VN 2340 
US 1791 
BR 1612 
CN 830 
SG 550 
HK 459 
GB 354 
MY 342 
