Campbell Scientific IRGASON Integrated CO2/H2O Open-Path Gas Analyzer and 3D Sonic Anemometer - Manual (Page 25)

IRGASON ® Integrated CO
2
/H
2
O Open-Path Gas Analyzer and 3D Sonic Anemometer
o Analog output: use cable CABLE4CBL-L (pn 21972) or
CABLE2TP-L (pn 26986-L). Once again, the customer specifies
the length of this cable at time of order. The connector labeled
Analog Outputs on the EC100 panel indicates where each wire
should be connected (CO
2
voltage signal, H
2
O voltage signal,
and two ground connections).
6. Wire power and ground (i.e., power reference) cable CABLEPCBL-L (pn
21969-L) to the EC100. Feed the cable through one of the cable port
openings in the base of the EC100 enclosure and attach the ends into the
green EC100 power connector (pn 3768). Plug the connector into the
female power connector on the EC100 panel. Ensure that the power and
ground ends are going to the appropriate terminals labeled 12V and
ground, respectively.
7. Connect the power cable to a power source. The power and ground ends
may be wired to the 12V and G ports, respectively, of a Campbell
Scientific datalogger or to another 12 Vdc source.
8. Once power is applied to the EC100, three status LEDs on the EC100
panel will illuminate. The power LED is green and the sonic and gas
LEDs are orange until the unit has warmed up and is ready to make
measurements at which time the LEDs become green. If, after several
minutes, the LEDs turn red, a diagnostic flag has been detected. Check the
individual diagnostic bits to determine the specific fault. Diagnostics may
be monitored using the Status Window of ECMon, the user interface
software included with the IRGASON (see Section 7, Settings), or with a
datalogger (see Section 10, Datalogger Programming). The diagnostics
may reveal that the unit needs service such as cleaning the optical
windows on the gas analyzer, clear the sonic transducers of ice or debris,
etc. (see Section 9, Maintenance).
7. Settings
Operation of the IRGASON can be customized by changing settings. Factory
defaults work well for most applications, but the user may adjust the settings
with a PC using either the Campbell Scientific ECMon software (see Section
7.14, ECMon) or DevConfig (see Section 7.15, Device Configuration Utility),
or with a datalogger using the EC100Configure() instruction (see Section
10.2, EC100Configure() Instruction).
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