
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
Internal basic barometer
Manufacturer: Freescale
Model: MPXAZ6115A
Accuracy: ±2.2 kPa (0
o
to 85
o
C)
Linear rise: ±2.2 kPa at 0
o
C to ±5.5 kPa at -30
o
C
Optional enhanced barometer:
Manufacturer: Campbell Scientific
Model: CS106 (Vaisala PTB110)
Accuracy: ±0.85 kPa (0
o
to 60
o
C)
Linear rise: 0.85 kPa at 0°C to 1.90 kPa at -30°C
IRGASON temperature sensor:
Manufacturer: BetaTherm
Model: 100K6A1A Thermistor
Accuracy: ±0.15
o
C (0
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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