Dwyer - Carbon Monoxide/Nitrogen Dioxide Gas Transmitter - GSTA Series

GSTA Series Datasheet

GSTA Carbon Monoxide/Nitrogen Dioxide Gas Transmitters

Description: The Series GSTA Carbon Monoxide/Nitrogen Dioxide Transmitters are designed to monitor gas concentrations in environments such as underground parking garages and loading docks. With field-selectable current and voltage outputs, these transmitters offer versatility and compatibility with various building management controllers. Featuring a field-replaceable electrochemical sensor and options for adjusting output ranges, the GSTA transmitters provide accurate and customizable monitoring solutions for carbon monoxide (CO) and nitrogen dioxide (NO2) gases.

Specifications:

• Sensor: Field-replaceable electrochemical, 4 years typical lifespan.
• 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% FS., NO2: ±3% FS, at the time of calibration.
• Resolution: CO: 1 PPM; NO2: 0.1 PPM.
• Temperature Range: -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 to 90% NO2.
• Span and Zero Adjustment: Via onboard push-buttons or using optional A-449 display.
• Housing: UV resistant glass-filled polycarbonate.
• Output Signals: Switch selectable 4-20 mA (loop powered), 0-5 V @ 5 mA, or 0-10 V @ 5 mA; Switch selectable 0-5 V/1-5 V and 0-10 V/2-10 V; Switch selectable normal or reverse output.
• Power Requirements: Current output: 10-35 VDC; Voltage output: 15-35 VDC or 15-29 VAC.
• Electrical Connection: Removable terminal block, knockouts for conduit fitting.
• Calibration: Via onboard push-buttons (LCD model only) or using optional A-449 display. Span gas concentration is field selectable.
• Enclosure Rating: IP64.
• Weight: 1 lb (.45 kg).
• Agency Approval: CE.

Benefits/Features:

• Versatile Output Options: Field-selectable current and voltage outputs enable compatibility with a wide range of building management controllers.
• Customizable Ranges: Switch selectable output ranges for CO and NO2 allow for flexibility in monitoring gas concentrations.
• Accurate Monitoring: Utilizes a field-replaceable electrochemical sensor with accurate readings and minimal drift over time.
• Convenient Adjustment: Offers span and zero adjustment via onboard push-buttons or optional A-449 display for easy calibration.

Applications:

• Underground Parking Garages: Monitors CO and NO2 concentrations to ensure safe air quality in enclosed spaces.
• Loading Docks: Provides early detection of harmful gas levels to protect personnel and equipment.
• Industrial Facilities: Helps maintain regulatory compliance and worker safety by monitoring gas levels in manufacturing environments.

With its versatile output options, customizable ranges, and accurate monitoring capabilities, the Series GSTA Carbon Monoxide/Nitrogen Dioxide Transmitters offer a reliable solution for gas detection and monitoring in various indoor environments.

Part Numbers:
GSTA-C-FC CO Sensor Selectable Range 0 - 50ppm to 0 - 500ppm universal output Factory Calibration Cert.
GSTA-N-FC NO2 Sensor 10ppm universal output Factory Calibration Cert.
GSTA-C-LCD-FC CO Sensor Selectable Range 0 - 50ppm to 0 - 500ppm universal output Factory Calibration Cert.
GSTA-N-LCD-FC NO2 Sensor 10ppm universal output Factory Calibration Cert.
GSTA-C-D-FC CO Sensor with Duct mount adaptor universal output Factory Calibration Cert.
GSTA-N-D-FC NO2 Sensor with Duct mount adaptor universal output Factory Calibration Cert.
A-449 Remote LCD Display for RHP-N / CDT / GSTA
A-505 CO Replacement Sensor for GSTA-C
A-506 NO2 Replacement Sensor for GSTA-N
A-507 Calibration Adapter for GSTA
A-GSTA-SE GSTA / GSTC / CMT200-R Security housing
Please refer to the datasheet to check models capabilities.
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