Campbell IRGASON, Руководство по эксплуатации продукта

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FIGURE 9-4. The zero-and-span shroud mounted on the zero-and-span stand. The
top tube is the gas intake, the black cable is the temperature thermistor, and the short
bottom tube is the gas exhaust.
4. Disconnect the IRGASON temperature sensor from the EC100 and connect the shroud
temperature sensor in its place.
5. Connect the EC100 to a PC with the EC100 USB cable.
6. Resume power to the EC100. Wait for all the Gas and Power LED status lights on the EC100
panel to turn green.
7. Launch ECMon , select the appropriate USB port, and click Connect. The main screen should
now be reporting real-time CO
2
and H
2
O concentrations. Click Zero/Span. A graph will
appear in the lower half of the zero-and-span window showing measured CO
2
and H
2
O
concentrations (see FIGURE 9-5 (p. 38)).
8. Connect a gas tank of known CO
2
concentration to a pressure regulator, then to a flow
controller, and finally to the intake of the shroud. Optimally, the concentration of span CO
2
should be near the concentration of CO
2
being measured in the field. Begin with both the
pressure regulator and flow controller turned off. Then use the pressure regulator to slowly
IRGASON® Integrated CO
2
/H
2
O Open-Path Gas Analyzer and 3D Sonic Anemometer 37