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Dwyer GSTA CO / NO2 Gas Transmitters w/ Analog Outputs
Rp.9,077,200
- Availability:
- 2 - 4 WEEKS
- Product Code:
- GSTA
- Brand:
- Dwyer Instruments
- Update Terakhir:
- 22 Jun 2023
-
Free delivery
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Pakar Teknologi Kami Siap Membantu!(62) 021-53167044 | 0812-83861970 | 0812-9915277
Email UsThe Dwyer GSTA and GSTC carbon monoxide and nitrogen dioxide gas transmitters are designed to monitor gas concentration in underground parking garages and loading docks. The CO transmitter is used to measure the exhaust of gasoline engines and the NO2 transmitter is designed for diesel engines.
GSTA models offer field selectable analog outputs (4 to 20 mA, 0 to 5 VDC & 0 to 10 VDC), while GSTC models feature NACnet or Modbus outputs, which are also field selectable. For carbon monoxide units, the GSTA can be configured for an output range from 0 to 50 ppm up to 0 to 500 ppm. Nitrogen dixoide units come with a standard range of 0 to 10 ppm. Additionally, the output can be inverted to read 20 to 4 mA or 10 or 5 to 0 VDC via internal dip switches. The GSTC is compatible with either BACnet or Modbus communication protocol, allowing the transmitter to be used with almost any building management controller, and its output is communicated over an RS-485 wire.
Using the A-449 remote LCD display (sold separately), the Dwyer GSTC CO and NO2 sensors can be field-calibrated which maximizes the accuracy of the GSTC Accuracy of the CO sensor is 2% full-scale at the time of calibration, while accuracy of the NO2 sensor is 3% full-scale. When the sensor reaches its end of life, the display will indicate that the sensor needs to be replaced.
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- Field replaceable electrochemical sensors
- 4 year typical sensor lifespan
- 5000 to 7500 sq ft typical coverage area
- Field selectable outputs: Current & voltage (GSTA); BACnet & Modbus (GSTC)
- Invertable output via dip switch (GSTA)
- Output ranges (GSTA): CO: 0 to 50 ppm up to 0 to 500 ppm; NO2: 0 to 10 ppm
- Full-scale accuracies of 2% (CO) & 3% (NO2)
- Sensor: Field replaceable electrochemical, 4 years typical lifespan.
- Range: NO2: 10 PPM; GSTA CO: Switch selectable 200 or 500 PPM; GSTC CO: 500 PPM.
- Output : Drift <5% per year in air.
- Coverage Area: 5000 to 7500 ft2 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 seconds to 90% CO; <25 seconds to 90% NO2.
- Span and Zero Adjustments: Via pushbutton, using optional A-449 display.
- Housing: UV resistant glass filled polycarbonate
- Output: GSTA: Switch selectable 4 to 20 mA, 0 to 5 V or 0 to 10 V; GSTC: BACnet MS/TP or MODBUS® RTU (switch selectable) communication protocol.
- Power Supply: GSTA: Current Output: 10 to 35 VDC, Voltage Output: 15 to 35 VDC or 15 to 29 VAC; GSTC: 10 to 36 VDC or isolated 21.6 to 33 VAC.
- Electrical Connection: Removable terminal block, knock outs for conduit fitting.
- Calibration: Via pushbuttons using A-449 display. Span gas concentration is field selectable on CO units.
- Weight: 1 lb (0.45 kg).
- Agency Approvals: CE
- (1) GSTA & GSTC CO / NO2 Gas Transmitters
- (1) Instruction Manual
Brochure/DatasheetDownload
Note: Prices are not binding at any time subject to change without prior notice
