MGS-550 Dual Gas Detector for Refrigeration Safety

MGS-550 Dual Gas Detector

Safety Gas Detection for Refrigerants, Toxic and Combustible Gases

Bacharach’s MGS-550 Gas Detector is a flexible gas detection platform that enables compliance with refrigeration safety codes (ASHRAE 15, CSA-B52).

  • IP66-rated enclosure protects from dust and water ingress
  • Two-sensor capability allows for unparalleled flexibility and enables detection of multiple target gases in a variety of ranges or locations (local and remote sensors available)
  • 5-digit LED display shows real-time concentration readings and makes configuration and self-diagnostics intuitive
  • 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
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Description

Bacharach’s advanced MGS-550 Dual Gas Detector can utilize any combination of sensor technologies, including electrochemical, semiconductor (MOS), catalytic bead or infrared, in a single platform for unparalleled detection capability. It meets ASHRAE 15 and EN 378 requirements. The MGS-550 can easily be connected to any central control system using the current and volt analog output or the Modbus RTU interface. With three user assignable relays, it can also function as a stand-alone unit without the need to wire alarm devices back to a central system.

The straightforward menu structure is identical throughout the platform reducing the amount of training required for installing and maintaining this product family. At any point in time, the instrument can be upgraded from a one sensor to a two sensor system by simply registering another sensor. The MGS-550 is furnished with two analog outputs which can be assigned as redundant for one or for transmit the signal of two sensors.

  • Product Specifications
  • Technical Library
  • Part Numbers
  • Accessories and Parts
  • Gas List
Sensor Channels: 1 to 2
Measuring Range: Sensor Dependent (See Datasheet)
Sensitivity / Minimum Detection Limit: Sensor Dependent (See Datasheet)
Accuracy: SC - < -10%/+15% of Full-Scale; IR, Cat, EC - < ±5% of Full-Scale
Resolution: Sensor & Gas Concentration Dependent (See Datasheet)
Enclosure Rating: IP66
User Interface: 5-digit, 7-segment red/green LED; configuration push buttons and magnetic switches
Power: 24 VDC +20% 8W
Analog Communications: 4 to 20 mA, 0 to 5 V, 0 to 10 V, 1 to 5 V, 2 to 10 V
Digital Communications: Modbus RTU via RS 485
Operating Voltage: 24 VDC or 24 VAC
Relay Rating: 2 Alarm relays, 1 Fault relay SPDT
Wiring: 2 A @ 30 VDC, 0.5 A @ 125 VDC, 0.25 A @ 250 VAC
Alarm: Integrated Audible / Visual Alarm
Ambient Temperature: -40 to 122°F (-40 to +50°C)
Humidity: 5 to 90 %RH, non condensing
Altitude: 0 to 6,560 ft (2,000 m)
Status Indicator: 5-digit, 7-segment red/green LED
Buzzer Volume: 80 dB @ 10 cm
Product Dimensions (L×W×H): 8.3” × 8.9” × 3.4” (210 × 225 × 85 mm)
Product Weight: 2 lbs (1 kg)(1.6 kg)
Sensor Type: Sensor Dependent (See Datasheet)
Approvals: CE, UL, CSA, IEC, EN 61010-1
Warranty: 1 Year
Country of Origin: United States

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Datasheets

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Gas Sensor Range Type Base Unit, 1 Local Sensor Local Sensor
Butane 0-100 %LEL IR 6600-8016 6600-8816
Butane 0-100 %LEL CB 6600-8039 6600-8839
CO 0-500 ppm EC 6600-8080 6600-8880
CO2 0-5,000 ppm IR 6600-8010 6600-8810
CO2 0-10,000 ppm IR 6600-8011 6600-8811
CO2 0-20,000 ppm IR 6600-8012 6600-8812
CO2 0-30,000 ppm IR 6600-8013 6600-8813
CO2 0-40,000 ppm IR 6600-8014 6600-8814
CO2 0-50,000 ppm IR 6600-8015 6600-8815
Ethylene 0-2,000 ppm SC 6600-8075 6600-8875
R-1234yf 0-1,000 ppm SC 6600-8052 6600-8852
R-1234ze 0-1,000 ppm SC 6600-8053 6600-8853
R-1234ze 0-10,000 ppm SC 6600-8067 6600-8867
LPG 0-100 %LEL CB 6600-8035 6600-8835
Methane 0-100 %LEL IR 6600-8017 6600-8817
Methane 0-100 %LEL CB 6600-8036 6600-8836
Methane 0-5,000 ppm SC 6600-8073 6600-8873
NH3 0-10,000 ppm SC 6600-8069 6600-8869
NH3 0-100 %LEL CB 6600-8034 6600-8834
NH3 0-100 ppm EC 6600-8019 6600-8819
NH3 0-1,000 ppm EC 6600-8020 6600-8820
NH3 0-5,000 ppm EC 6600-8021 6600-8821
NO2 0-20 ppm EC 6600-8024 6600-8824
O2 0-30 Vol% EC 6600-8025 6600-8825
Propane 0-100 %LEL IR 6600-8018 6600-8818
Propane 0-100 %LEL CB 6600-8038 6600-8838
R-134a 0-1,000 ppm SC 6600-8042 6600-8842
R-134a 0-10,000 ppm SC 6600-8056 6600-8856
R-290 0-5,000 ppm SC 6600-8070 6600-8870
R-32 0-1,000 ppm SC 6600-8041 6600-8841
R-32 0-10,000 ppm SC 6600-8055 6600-8855
R-404A 0-1,000 ppm SC 6600-8043 6600-8843
R-404A 0-10,000 ppm SC 6600-8057 6600-8857
R-407A 0-1,000 ppm SC 6600-8044 6600-8844
R-407A 0-10,000 ppm SC 6600-8058 6600-8858
R-407C 0-1,000 ppm SC 6600-8045 6600-8845
R-407C 0-10,000 ppm SC 6600-8059 6600-8859
R-407F 0-1,000 ppm SC 6600-8046 6600-8846
R-407F 0-10,000 ppm SC 6600-8060 6600-8860
R-410A 0-1,000 ppm SC 6600-8047 6600-8847
R-410A 0-10,000 ppm SC 6600-8061 6600-8861
R-422A 0-1,000 ppm SC 6600-8048 6600-8848
R-422A 0-10,000 ppm SC 6600-8062 6600-8862
R-422D 0-1,000 ppm SC 6600-8049 6600-8849
R-422D 0-10,000 ppm SC 6600-8063 6600-8863
R-427A 0-1,000 ppm SC 6600-8050 6600-8850
R-448A 0-1,000 ppm SC 6600-8076 6600-8876
R-449A 0-1,000 ppm SC 6600-8077 6600-8877
R-452A 0-1,000 ppm SC 6600-8078 6600-8878
R-507 0-1,000 ppm SC 6600-8051 6600-8851
R-507 0-10,000 ppm SC 6600-8065 6600-8865
R-513A 0-1,000 ppm SC 6600-8079 6600-8879
R-600 0-5,000 ppm SC 6600-8071 6600-8871

Pre-calibrated replacement sensors

Gas Sensor Range Sensor Type Part Number
Butane 0-100 %LEL IR 6600-8216
Butane 0-100 %LEL CB 6600-8239
CO 0-500 ppm EC 6600-8309
CO2 0-5,000 ppm IR 6600-8210
CO2 0-10,000 ppm IR 6600-8211
CO2 0-20,000 ppm IR 6600-8212
CO2 0-30,000 ppm IR 6600-8213
CO2 0-40,000 ppm IR 6600-8214
CO2 0-50,000 ppm IR 6600-8215
Ethylene 0-2,000 ppm SC 6600-8275
R-1234yf 0-1,000 ppm SC 6600-8252
R-1234ze 0-1,000 ppm SC 6600-8253
R-1234ze 0-10,000 ppm SC 6600-8267
LPG 0-100 %LEL CB 6600-8235
Methane 0-100 %LEL IR 6600-8217
Methane 0-100 %LEL CB 6600-8236
Methane 0-5,000 ppm SC 6600-8273
NH3 0-10,000 ppm SC 6600-8269
NH3 0-100 %LEL CB 6600-8234
NH3 0-100 ppm EC 6600-8219
NH3 0-1,000 ppm EC 6600-8220
NH3 0-5,000 ppm EC 6600-8221
NO2 0-20 ppm EC 6600-8224
O2 0-30 Vol% EC 6600-8225
Propane 0-100 %LEL IR 6600-8218
Propane 0-100 %LEL CB 6600-8238
R-134a 0-1,000 ppm SC 6600-8242
R-134a 0-10,000 ppm SC 6600-8256
R-290 0-5,000 ppm SC 6600-8270
R-32 0-1,000 ppm SC 6600-8241
R-32 0-10,000 ppm SC 6600-8255
R-404A 0-1,000 ppm SC 6600-8243
R-404A 0-10,000 ppm SC 6600-8257
R-407A 0-1,000 ppm SC 6600-8244
R-407A 0-10,000 ppm SC 6600-8258
R-407C 0-1,000 ppm SC 6600-8245
R-407C 0-10,000 ppm SC 6600-8259
R-407F 0-1,000 ppm SC 6600-8246
R-407F 0-10,000 ppm SC 6600-8260
R-410A 0-1,000 ppm SC 6600-8247
R-410A 0-10,000 ppm SC 6600-8261
R-422A 0-1,000 ppm SC 6600-8248
R-422A 0-10,000 ppm SC 6600-8262
R-422D 0-1,000 ppm SC 6600-8249
R-422D 0-10,000 ppm SC 6600-8263
R-427A 0-1,000 ppm SC 6600-8250
R-448A 0-1,000 ppm SC 6600-8305
R-449A 0-1,000 ppm SC 6600-8306
R-452A 0-1,000 ppm SC 6600-8307
R-507 0-1,000 ppm SC 6600-8251
R-507 0-10,000 ppm SC 6600-8265
R-513A 0-1,000 ppm SC 6600-8308
R-600 0-5,000 ppm SC 6600-8271