Campbell Scientific IRGASON IRGASON Integrated CO2/H2O Open-Path Gas Analyzer - Page 14

Sonic temperature, Full scale wind

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IRGASON® Integrated CO2/H2O Open-Path Gas Analyzer and 3D Sonic Anemometer Sonic accuracy5 Offset error ux, uy: uz: < ±8 cm·s-1 < 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: Sonic temperature: ±65.553 m/s -50° to +60°C Auxiliary sensors6 Barometer Basic barometer Accuracy -30 to 0°C: ±3.7 kPa at -30°C, falling linearly to ±1.5 kPa at 0oC 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: Accuracy: 100K6A1A Thermistor ±0.15oC (-30o to 50oC) 1 noise rms, assumes: o 25°C o 85 kPa o 14 g·m-3 H2O o 597 mg·m-3 CO2 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

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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