Series GSTA Carbon Monoxide/Nitrogen Dioxide Gas Transmitter

High Accuracy Electrochemical Sensor, Universal Output

The Series GSTA Carbon Monoxide/Nitrogen Dioxide Transmitters monitor the gas concentration in underground parking garages and loading docks. Carbon monoxide is commonly used to measure the exhaust of gasoline engines, while nitrogen dioxide is used for diesel engines. Field selectable current and voltage outputs allow the transmitter to be used with almost any building management controller. For carbon monoxide units, the user can select the output range to be from 0 to 50 ppm or up to 0 to 500 ppm. Nitrogen dioxide units come with a standard 0 to 10 ppm range. The output can be inverted to read 20 to 4 mA or 10 (5) to 0 VDC using internal dip switches.

To maximize the accuracy of the Series GSTA, 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.

Product Applications

  • Garage or loading dock ventilation
  • Mechanical room monitoring

Models & Ordering

Model Description Usually Ships Price Order
GSTA-C
Ships: Next Day
Price: $175.00
Carbon Monoxide Transmitter with universal current/voltage outputs Next Day $175.00 Order
GSTA-C-D
Ships: Next Day
Price: $225.00
Carbon Monoxide Duct Mount Transmitter with universal current/voltage outputs Next Day $225.00 Order
GSTA-C-LCD
Ships: 2-3 Weeks
Price: $225.00
Carbon Monoxide Transmitter with universal current/voltage outputs, LCD display 2-3 Weeks $225.00 Order
GSTA-N
Ships: Next Day
Price: $325.00
Nitrogen Dioxide Transmitter with universal current/voltage outputs Next Day $325.00 Order
GSTA-N-D
Ships: Next Day
Price: $375.00
Nitrogen Dioxide Duct Mount Transmitter with universal current/voltage outputs Next Day $375.00 Order
GSTA-N-LCD
Ships: 2-3 Weeks
Price: $375.00
Nitrogen Dioxide Transmitter with universal current/voltage outputs, LCD display 2-3 Weeks $375.00 Order

Specifications

Sensor:
Field replaceable electrochemical, 4 years typical lifespan. Recommend calibration every 6 months.
Range:
CO: switch selectable 200 or 500 ppm; NO2:10 ppm.
Output Drift:
<5% per year in air.
Coverage Area:
5000 to 7500 sq ft typical.
Accuracy:
CO=2% of reading, NO2=3% at the time of calibration.
Resolution:
CO=1 ppm
Temperature Limits::
Ambient: -4 to 122°F (-20 to 50°C); Storage: 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 seconds to 90% CO, <25 to 90% NO2.
Span and Zero Adjustment:
Via pushbutton, using optional A-449 display.
Housing:
UV resistant glass filled polycarbonate.
Output:
Switch selectable 4 to 20 mA (loop powered), 0 to 5 V @ 5 mA, or 0 to 10 V@ 5 mA;
Switch selectable 0 to 5 V / 1 to 5 V and 0 to 10 V / 2 to 10 V;
Switch selectable normal or reverse output.
Power Supply:
Current output=10 to 35 VDC;
Voltage output=15 to 35 VDC or 15 to 29 VAC.
Electrical Connection:
Removable terminal block, knocks out for conduit fitting.
Calibration:
Via pushbuttons using A-449 auxiliary display. Span gas concentration is field selectable.
Weight:
1 lb (.45 kg).
Agency Approvals:
CE.

Features

  • Add optional integral LCD display by adding -LCD to end of model number (Example: GSTA-C-LCD)
  • Industrial grade replaceable CO or NO2 sensors
  • Field selectable current or voltage output on GSTA models
  • Service display tool for set-up and calibration of models without a LCD

Accessories

Model Number Description Usually Ships Price Order
Remote display with mini USB display. A-449 Remote display with mini USB display. Next Day $50.00 Order
Replacement Carbon Monoxide Sensor for GSTA Series, Model CMT200 A-505 Replacement Carbon Monoxide Sensor for GSTA Series, Model CMT200 2-3 Weeks $50.00 Order
Replacement Nitrogen Dioxide Sensor for GSTA Series A-506 Replacement Nitrogen Dioxide Sensor for GSTA Series 2-3 Weeks $135.00 Order
Gas calibration Kit for GSTA Series A-507 Gas calibration Kit for GSTA Series Next Day $50.00 Order
Gas Calibration Kit <br><b>
(GROUND SHIPMENTS ONLY)</b> GCK-200CO-2000CO2 Gas Calibration Kit
(GROUND SHIPMENTS ONLY)
Next Day $345.00 Order

Videos

Model Chart

EXAMPLE GSTA C D Series GSTA-C-D, Carbon Monoxide Transmitter, CO Carbon Monoxide, duct mount
SERIES GSTA     Carbon Monoxide Gas Transmitter
GAS TYPE   C
N
  CO Carbon Monoxide
Nitrogen Dioxide
OPTIONS     D
LCD
Duct Mount
LCD Display

Product Literature

Manuals

Catalog Pages

Product Data Sheet

Approvals

Drawings

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