Campbell Scientific IRGASON Integrated CO2/H2O Open-Path Gas Analyzer and 3D Sonic Anemometer - Manual (Page 15)

IRGASON ® Integrated CO
2
/H
2
O Open-Path Gas Analyzer and 3D Sonic Anemometer
5.2 Output Signals
Features
• EC100 electronics outputs data using:
o CS SDM
o RS-485
o USB
o Analog out
Digital
SDM (Synchronous Device for Measurement) 1
Data type: FLOAT
RS-485
Data type: ASCII
Output Rate: 5 to 50 Hz
Baud rate: 1200 to 230400 bps
USB
Data type: ASCII
Output rate: 10, 25 or 50 Hz
Analog (two outputs for CO
2
and H
2
O densities)
Voltage range: 0 mV to 5000 mV
Resolution: 76 µV (16 bit)
Update rate: 100 Hz
Accuracy (at 25 o C): ±3 mV
CO
2
density equation: mg·m –3 = 0.38632· (mV
out
) – 102.59
Full scale range: –103 to 1829 mg·m –3
H
2
O density equation: g·m –3 = 0.00865· (mV
out
) – 2.26
Full scale range: –2 to 41 g·m –3
1 Synchronous Device for Measurement. A Campbell Scientific, Inc. proprietary serial interface
for datalogger to peripheral and sensor communication. See Section 8.1, SDM Output, for details.
2 user selectable
5.3 Physical Description
Optical path length: 15.37 cm (6.05 in)
Sonic path length: 10.0 cm
Sonic path angle from vertical: 30°
Spatial separation between gas analyzer and sonic volumes: 0 cm
Dimensions
IRGASON
Length: 51.5 cm (20.3 in)
Height: 31.1 cm (12.2 in)
Cable Length: 3 m (9.8 ft)
EC100 Enclosure: 24.1 x 35.6 x 14 cm (9.5 x 14.0 x 5.5 in)
Weight
IRGASON with Cable: 2.8 kg (6.1 lbs)
EC100 with Enclosure: 3.2 kg (7 lbs)
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