Campbell Scientific Open Path Eddy Covariance (OPEC) - Manual (Page 18)

OPEC Open-Path Eddy-Covariance System
key, select “CRD:” and again press the key. The datalogger will now
display a list of program files on the card.
Navigate to the eddy-covariance program and press the key. The
cursor will jump to the “To” line. Press the key and then the right
arrow, select CPU:filename. Press the key and down arrow. Finally,
press the key to execute the copy from the card to the CPU.
To start the program, press the key until the main menu appears and
Campbell Scientific logo appear in the upper left hand side. Press the
key, if necessary, select the “System Menu” and press the key. Select
the “Run/Stop Program” menu and press the key. Tag the “Restart,
Delete Data” option, navigate to “Execute” and press the key. Select
“Yes” and press the key.
Do not run a program from the PC/CF card if the card will
be removed and replaced with another. CAUTION
3.3 System Operation
Once the program is downloaded to the datalogger, compiled, and the PC/CF
card has been formatted, the datalogger will begin to communicate with the
SDM sensors and measure the analog sensors. At the top of the next minute, it
will start writing the raw time series data to the PC/CF card (the LED will
begin to pulse at a regular interval). Verify that all the sensors are wired and
measured correctly by monitoring the Public data table. Check the Status data
table for compile and runtime errors (see Section 3.3.2).
3.3.1 Monitoring Data
Monitor the instantaneous measurements and diagnostics by viewing the
“Public” table. The “Public” tables can be monitored using either LoggerNet
(see the LoggerNet manual for details) or via the keyboard and display (see the
datalogger manual for details). The online flux computations can be viewed by
monitoring the “Flux” table with either LoggerNet or the keyboard and display.
The historical online “Flux” data can be monitored in “Final Storage Data”
menu.
3.3.2 Status Table
The “Status” table contains useful information about the performance and
status of the system (see Appendix A in the datalogger manual). To view the
“Status” table with LoggerNet, go to the Connect Screen and select the Tools |
Status Table … menu (see Section 5.1.10 in the LoggerNet manual). With the
keyboard display, follow this menu path System Menu | Status. Useful
information in the “Status” table includes, but is not limited to:
OSVersion: Version and revision of the CRBasic datalogger operating
system. As of the printing of this document, Campbell Scientific recommends
using, CR3000 OS v25.0, CR1000 OS v25.0, or CR5000 OS v6.0 or greater.
WatchdogErrors: Number of times the watch dog timer reset the datalogger.
Normally, this count should be 0.
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