Campbell-scientific IRGASON Integrated CO2/H2O Open-Path Gas Analyzer Manual de usuario Pagina 14

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IRGASON
®
Integrated CO
2
/H
2
O Open-Path Gas Analyzer and 3D Sonic Anemometer
Sonic accuracy
5
Offset error
u
x
, u
y
: < ±8 cm·s
–1
u
z
: < 4 cm·s
–1
Gain error
Wind vector ±5° horizontal: < ±2% of reading
Wind vector ±10° horizontal: < ±3% of reading
Wind vector ±20° horizontal: < ±6% of reading
Sonic reporting range
Full scale wind: ±65.553 m/s
Sonic temperature: 50° to +60°C
Auxiliary sensors
6
Barometer
Basic barometer
Accuracy
30 to 0°C: ±3.7 kPa at 30°C, falling linearly to ±1.5
kPa at 0
o
C
0° to 50°C: ±1.5 kPa
Measurement rate: 10 Hz
Optional enhanced barometer:
Manufacturer: Vaisala
Model: PTB110
Accuracy
30 to 0°C: ±0.15 kPa
Measurement rate: 1 Hz
IRGASON temperature sensor:
Manufacturer: BetaTherm
Model: 100K6A1A Thermistor
Accuracy: ±0.15
o
C (30
o
to 50
o
C)
1
noise rms, assumes:
o 25°C
o 85 kPa
o 14 g·m
–3
H
2
O
o 597 mg·m
–3
CO
2
o 25 Hz bandwidth.
2
user selectable
3
30° to 50°C
4
noise rms
5
assumes:
o 30° to +50°C
o wind speed <30 m·s
–1
o azimuth angles between ±170°
6
refer to manufacturer’s product brochure or manual for details
4
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