MGS-150

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Gas Transmitter Series

MGD-100

Bacharach’s MGS-150 Series Gas Transmitter is a feature-rich gas detection system with a
wide range of sensor options to provide real-time monitoring of refrigerant, combustible, and
toxic gases. It comes standard with user-selectable analog and digital outputs that can be set
for 4-20 mA, 0-5V, 1-5V, 0-10V, or 2-10V; allowing them to connect directly to most BMS,
SCADA or control systems. Alarm indicators include an onboard alarm LED and audible buzzer,
in addition to an alarm relay for connection to external audible/visual alarms or a BMS system.

The product’s alarm threshold value is pre-set to factory defaults but is also field
programmable. A variety of housing options are available, from standard IP41
enclosures to IP66 water resistant housings, which allow the MGS-150 Series gas sensors to
be placed in the toughest of conditions.

Features & Benefits

  • Infrared, semiconductor and electrochemical sensor options to meet almost any gas detection need - at the most affordable cost.
  • User-selectable analog outputs: 4-20 mA, 0-5V, 0-10V, 1-5V, 2-10V featuring 12/24 VAC/VDC operation
  • Fast-response sensors detect leaks quickly, which protect personnel and minimize refrigerant gas usage and environmental impact.
  • Long-life semiconductor sensors for detection of all refrigerants, ammonia, halocarbons, combustible gases & VOCs
  • Robust design and remote sensor options allow units to be placed directly in areas where detection is needed.
  • Available in a variety of housings, including IP66 and duct mount, for placement in the toughest of environments.

Specifications

Power Supply 12/24 VAC/VDC operation
Power Consumption (12V) NDIR: 140 mA • SC: 160 mA • EC: 60 mA
Power Monitoring Green LED
Visual Alarm Red LED
Audible Alarm Buzzer, enabled/disabled
Fault Monitoring Red LED (On) • Green LED (Off)
Fault States 0-1 V / 0-2 mA outputs
Analog Outputs 4-20 mA, 0-5 V, 0-10 V, 1-5 V, 2-10 V
Relay Output (Volt-free) 1 relay, 1 amp 24 VAC/VDC
Alarm Delay Selectable: 0, 1, 5 or 10 minutes
IP Rating IP41 (standard) • IP66 (optional)
Dimensions & Weight - enclosure types Standard 3.35”x5.59”x2.09” • 6.3oz.
IP41: 86 x 142 x 53mm • 180g
IP66: 6.89”x6.5”x3.29” • 1lb. 6oz.
175 x 165 x 82mm • 629g
IP66 w/Splash: 6.89”x8.9”x3.29” • 1lb. 8.7oz.
175 x 225 x 82mm • 700g
IP66 / Remote: 6.89”x6.1”x3.29” • 1lb. 11oz.
175 x 155 x 82mm • 790g
IP66 / EXd: 6.89”x6.1”x3.29” • 2lb. 10oz.
175 x 155 x 82mm • 1185g
PRV / IP66: 6.89”x6.1”x3.29” • 2lb. 0.3oz.
175 x 155 x 82mm • 916g
Airflow / Duct: 6.89”x4.9”x3.29” • 1lb. 4oz.
175 x 125 x 82mm • 578g
EXd 5.12”x6.3”x3.54” • 9lb. 4oz.
(ATEX only): 130 x 160 x 90mm • 4200g
Approvals CE • IEC 61010 • EXd • UL CSA

Sensor Information

  Infrared (NDIR) Semiconductor (SC) Electrochemical (EC)
Temperature Range -4° F to 122° F (Stand. housing)
-20° C to 50° C (Stand. housing)
-40° F to 122° F (IP66 housing)
-40° C to 50° C (IP66 housing)
-4° F to 122° F (Stand. housing)
-20° C to 50° C (Stand. housing)
-40° F to 122° F (IP66 housing)
-40° C to 50° C (IP66 housing)
-4° F to 122° F (Stand. housing)
-20° C to 50° C (Stand. housing)
-40° F to 122° F (IP66 housing)
-40° C to 50° C (IP66 housing)
Humidity (non-condensing) 0-95% 0-95% 0-95%
Sensor Life 8 years, typical 5-8 years, typical 2-5 years, typical
Time to Alarm (T50) 25 seconds, typical 20 seconds, typical 80 seconds, typical
Time to Alarm (T90) 90 seconds, typical 50 seconds, typical 220 seconds, typical
Recovery Time 210 seconds, typical 900 seconds, typical 600 seconds, typical
Infrared (NDIR) Sensor Gas(es) Detected Measuring Range(s)
  Carbon Dioxide (CO2) 0 - 1,000 ppm
0 - 2,000 ppm
0 - 5,000 ppm
O - 10,000 ppm (0-1% vol.)
0 - 20,000 ppm (0-2% vol.)
0 - 5%, 0 - 10%
  Hydrocarbons (Methane, propane, etc.) 0 - 100% LEL, 0 - 100% vol.
Semiconductor Sensor Gas(es) Detected Measuring Range(s)
  Refrigerants - HFCs: (R134a, R404a,
R407, R410a, & many more)
0 - 1,000 ppm
  Refrigerants - HFCs: (R22, R32, R290
& more)
0 - 1,000 ppm
  Refrigerants - CFCs (R11, R12 & more) 0 - 1,000 ppm
  Ammonia (NH3 0 - 10,000 ppm
  Hydrogen (H2) 0 - 2,000 ppm
  Hydrocarbons: Methane (natural gas),
Propane, Butane, LPG, Ethylene, Isobutane
0 - 2,000 ppm
  VOCs: Acetone, Ethanol, Methanol,
Trichloro-ethylene and more
0 - 2,000 ppm
Electrochemical Sensor Gas(es) Detected Measuring Range(s)
  Ammonia (NH3) 0 - 100 ppm • 0 - 500 ppm • 0 - 1,000 ppm • 0 - 5,000 ppm
  Carbon Monoxide (CO) 0 - 100 ppm • 0 - 500 ppm • 0 - 1,000 ppm
  Chlorine (Cl2) 0 - 20 ppm
  Chlorine Dioxide (ClO2) 0 - 1 ppm
  Ethylene Oxide (C2H4O) 0 - 20 ppm
  Ethylene (C2H4) 0 - 20 ppm • 0 - 1,000 ppm
  Fluorine (F2) 0 - 1 ppm
  Hydrazine (N2H2) 0 - 1 ppm
  Saline - Hydride (SiH4) 0 - 5 ppm
  Hydrogen (H2) 0 - 1,000 ppm
  Hydrogen Chloride (HCl) 0 - 50 ppm
  Hydrogen Cyanide (HCN) 0 - 50 ppm
  Hydrogen Sulfide (H2S) 0 - 30 ppm • 0 - 200 ppm
  Nitric Oxide (NO) 0 - 100 ppm • 0 - 1,000 ppm
  Nitrogen Dioxide (NO2) 0 - 10 ppm
  Oxygen (O2) 0 - 30% vol.
  Ozone (O3) 0 - 2 ppm
  Phosgene (COCl2) 0 - 1 ppm
  Phosphine (PH3) 0 - 5 ppm
  Sulfur Dioxide (SO2) 0 - 100 ppm

Ordering Information

Part NumberDescription
  Infrared Sensor - Common Configurations
6300-1090 CO2 IR: 0 - 5,000 ppm • Standard Housing
6300-8091 CO2 IR: 0 - 10,000 ppm • Duct Mount
6300-2051 Combustibles IR: 0 - 100% LEL • IP66 Housing
  Semiconductor (SC) Sensor - Common Configurations
6300-7118 NH3: 0 - 10,000 ppm • IP66 w/PRV Sensor
6300-4101 R134a: 0 - 1,000 ppm • IP66 w/Remote Sensor
6300-1105 R407a: 0 - 1,000 ppm • Standard Housing
6300-4107 R410a: 0 - 1,000 ppm • IP66 w/Remote Sensor
  Electrochemical (EC) Sensor - Common Configurations
6300-1018 CO: Parking Garage • Standard Housing
6300-2018 CO: Parking Garage • IP66 Housing
6300-3031 NH3: 0 - 500 ppm • IP66 w/Splash Guard
6300-4030 NH3: 0 - 100 ppm • IP66 w/Remote Sensor
6300-2001 CO: 0 - 1,000 ppm • IP66 Housing
6300-1019 NO2: Parking Garage • Standard Housing
6300-2019 NO2: Parking Garage • IP66 Housing
6300-2015 O3: 0-2 ppm • IP66 Housing
  Please contact your Bacharach sales representative for other
configurations based on your unique specifications.