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IRGASON Integrated CO

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)

Data type: FLOAT

RS-485

Data type: ASCII

Output Rate: 5 to 50 Hz (user selectable)

Baud rate: 1200 to 230400 bps (user selectable)

USB

Data type: ASCII

Output rate: 5 to 50 Hz (user selectable)

Analog (two outputs for CO

and H

O densities)

Voltage range: 0 mV to 5000 mV

Resolution: 76 µV (16 bit)

Update rate: 100 Hz

Accuracy (at 25

C): ±3 mV

density equation: mg·m

-3

= 0.38632· (mV

out

) - 102.59

Full scale range: -103 to 1829 mg·m

-3

O density equation: g·m

-3

= 0.00865· (mV

out

) - 2.26

Full scale range: -2 to 41 g·m

-3

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.

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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Campbell IRGASON Manuale Pagina 13

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