Campbell Scientific IRGASON IRGASON Integrated CO2/H2O Open-Path Gas Analyzer - Page 15

Output Signals, 5.3 Physical Description, µV 16 bit

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IRGASON® Integrated CO2/H2O 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: Output Rate: Baud rate: ASCII 5 to 50 Hz 1200 to 230400 bps USB Data type: Output rate: ASCII 10, 25 or 50 Hz Analog (two outputs for CO2 and H2O densities) Voltage range: 0 mV to 5000 mV Resolution: 76 µV (16 bit) Update rate: 100 Hz Accuracy (at 25oC): ±3 mV CO2 density equation: Full scale range: mg·m-3 = 0.38632· (mVout) - 102.59 -103 to 1829 mg·m-3 H2O density equation: Full scale range: g·m-3 = 0.00865· (mVout) - 2.26 -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: Height: Cable Length: EC100 Enclosure: 51.5 cm (20.3 in) 31.1 cm (12.2 in) 3 m (9.8 ft) 24.1 x 35.6 x 14 cm (9.5 x 14.0 x 5.5 in) Weight IRGASON with Cable: EC100 with Enclosure: 2.8 kg (6.1 lbs) 3.2 kg (7 lbs) 5

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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)
5