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Dwyer Omega – Series GSTC CO/NO2 Gas Transmitter for Garages, BACnet/Modbus®
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Dwyer Omega – Series GSTC CO/NO2 Gas Transmitter for Garages, BACnet/Modbus®

Dwyer Omega – Series GSTC CO/NO2 Gas Transmitter for Garages, BACnet/Modbus®

Product Code: Series GSTC

Manufacturer: Dwyer Omega


The Series GSTC Carbon Monoxide/Nitrogen Dioxide Gas Transmitter monitors the gas concentration in underground parking garages and loading docks. The carbon monoxide transmitter is used to measure the exhaust of gasoline engines, while the nitrogen dioxide transmitter is used for diesel engines. The Series GSTC is compatible with either BACnet or Modbus® communication protocol, allowing the transmitter to be used with almost any building management controller. The GSTC output is communicated over an RS-485 wire via BACnet or Modbus® communication protocol. To maximize the accuracy of the Series GSTC, the sensor can be field-calibrated using the A-449 remote LCD display. When the sensor reaches the end of its life, the display will indicate that the sensor needs to be replaced. BACnet and Modbus® communication protocol recommend limiting the number of nodes in any segment to 32. Therefore, the transceiver may be rated at one unit load. Fractional loads are also acceptable. The Series GSTC accounts as an eighth of a load on the MS/TP network.

Applications

Building and Maintenance, HVAC

Compliance

CE

Coverage Area

5000 to 7500 sq ft

Data Interface

BACnet MS/TP, Modbus RTU, Modbus ASCII

Drift

<5%/Year in Air

Electrical Connection

Conduit Knockouts with terminal block

Enclosure Type

IP64

Materials

Glass-Filled Polycarbonate

Operating Temperature, Max

122 °F

Operating Temperature, Min

-4 °F

Relative Humidity

15 to 90% RH Constant, 0 to 99% RH Intermittent

Sensor Life

2 Years

Sensor Type

Field Replaceable Electrochemical

Storage Temperature, Max

68 °F

Storage Temperature, Min

32 °F

Supply Power Type

AC/DC

Supply Voltage

11 to 36 Vdc / 21.6 to 33 Vac (Isolated), 5.7 mA @ 24 Vdc

Weight

1 lb

  • Industrial grade replaceable CO or NO2 sensors
  • Field selectable BACnet or Modbus® communication on GSTC models
  • Integral LCD display option
  • Service display tool for set-up and calibration of models without a LCD
Datasheet Download
Instruction Manual Download

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