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GSTC-C-D | Carbon Monoxide Duct Mount Transmitter with BACnet & Modbus Communication | Dwyer

Carbon Monoxide Duct Mount Transmitter with BACnet & Modbus Communication

Brand: DwyerSKU: GSTC-C-D

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Overview Details for GSTC-C-D

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Carbon Monoxide Duct Mount Transmitter with BACnet & Modbus Communication

SERIES GSTC CARBON MONOXIDE/NITROGEN DIOXIDE GAS TRANSMITTER

High Accuracy Electrochemical Sensor, BACnet & MODBUS® Communication Protocol Compatible

The Series GSTC Carbon Monoxide/Nitrogen Dioxide GasTransmitter monitors the gas concentration in underground parking garages andloading docks. The carbon monoxide transmitter is used to measure the exhaust ofgasoline engines, while the nitrogen dioxide transmitter is used for diesel engines. TheSeries 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 sensorcan be field-calibrated using the A-449 remote LCD display. When the sensor reachesthe end of its life, the display will indicate that the sensor needs to be replaced.BACnet and Modbus® communication protocol recommend limiting the number ofnodes 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 aload on the MS/TP network.

FACTORY CALIBRATED choices are available under "Filter By" on the Ordering tab.

Product Applications

Parking Garages
Loading Docks
Mechanical Room Monitoring

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

Specifications

Series: GSTC CARBON MONOXIDE/NITROGEN DIOXIDE GAS TRANSMITTER
Category/Type: Air Quality
Type: Carbon Monoxide Transmitters
Series: GSTC CARBON MONOXIDE/NITROGEN DIOXIDE GAS TRANSMITTER
Sensor: Field replaceable electrochemical; 4 years typical lifespan.
Range: CO: 0 to 500 PPM; NO2: 10 PPM.
Output Drift: <5% per year in air.
Coverage Area: 5000 to 7500 sq ft typical.
Accuracy: CO: 2% FS; NO2: 3% FS; at the time of calibration.
Resolution: CO: 1 PPM; NO2: 0.1 PPM.
Temperature Limits: -4 to 122°F (-20 to 50°C).
Storage Temperature: For best sensor life; 32 to 68°F (0 to 20°C).
Humidity Limits: 15 to 90% RH constant; 0 to 99% RH intermittent.
Response Time: <45 s to 90% CO; <25 s to 90% NO2.
Span and Zero Adjustment: Via pushbutton; using optional A-449 display. Zeroonly via BACnet or MODBUS® communication protocol.
Housing: UV resistant glass filled polycarbonate.
Output Signals: BACnet MS/TP; MODBUS® RTU; or MODBUS® ASCII (switchselectable) communication protocol.
Power Requirements: 10-36 VDC or isolated 21.6-33 VAC; 5.7 mA @ 24 VDC.
Electrical Connection: Removable terminal block; knock outs for conduit fitting.
Calibration: Via pushbuttons using A-449 auxiliary display. Span gasconcentration is field selectable.
Enclosure Rating: IP64.
Weight: 1 lb (0.45 kg).
Agency Approvals: CE.