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3M Macurco GT-11A Combustible Fixed Sensor Transducer, GT11A, %LEL, 12-24V, 4-20mA, ETL Approved
Combustible solid state sensor analog transducer GT-11A offers dual linear output transducer, 4-20ma output, and 24 VAC or VDC operation. GT-11A is for use with the DVP-120 or with HVAC/Building Automation Systems.
The GT-11A is a dual linear output transducer for use with Building Automation Systems, Energy Management Systems, Macurco DVP-12 Control Panel. Unit sends either a 4 to 20 milliamps or 1 to 5 volt signal. The standard calibration for the GT-11A is to the following range: 0 to 10,000 parts per million (ppm) of methane. 10,000 ppm is approximately 20% of the Lower Explosive Limit (LEL) of methane. Easy installation: Input voltage is 24 VAC or 24 VDC. The unit mounts over a standard 4 x 4 electrical box. Optional duct mounting kit (DMK-1) is available for special applications. Dual operating LED indicators: the green LED indicates normal operating condition, while the amber LED indicated a trouble condition. Supervised System: Unit continually performs an internal self-test. The amber LED indicates a trouble condition if there is a sensor or circuit failure. Standard calibration detects the following gases: methane, natural gas, propane, butane, gasoline fumes, acetylene and LP. Special calibrations are available to detect other hydrocarbon gases including: jet fuel, alcohol, ethane, kerosene, xylene, etc. Low maintenance self-purging semiconductor sensor. Sensor life is 7 to 10 years. Specifications Input Voltage:24 Vac or 24 Vdc Typical Current Usage:130 mA @ 24 Vac, 90mA @ 24 Vdc Size:6 x 6 x 3 inches Color:Gray Shippiing Weight:3 pounds Operating Environemnt:0 to 125°F and 10 to 90% (non-condensing)Current Output:4 to 20 mA Voltage Output:1 to 5 V Range:0 to 10,000 ppm of methane (standard calibration) August 2005
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