Open Path Eddy Covariance System
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If you loan a CSAT3 or LI-7500 to a colleague, verify that
the addresses are 3 and 7, respectively, before deploying
the system into the field.
3.3 Loading a Program to the Datalogger
Before the datalogger can begin to make measurements, a program must be
transferred into its CPU. The program can be transferred using a PC and
LoggerNet or using PC/CF cards. Without a working datalogger program, the
collection of eddy covariance sensors is just that, a collection of sensors. It is
the datalogger program and this document that integrates the sensors and
makes them an Open Path Eddy Covariance Flux System.
3.3.1 Direct Connection via LoggerNet
The datalogger program can be transferred to a datalogger using a PC,
LoggerNet, and some sort of interface. In the eddy covariance application, the
most common interface is the RS-232 cable.
CR3000 OS v3.0, CR1000 OS v10.0, and CR5000 OS v2.1 or
greater support a 32 bit File Allocation Table (FAT32). Before a
card is used for the first time with a CRBasic datalogger, format
it on a Windows XP computer using FAT32. If a Windows XP
computer is unavailable, the 16 bit File Allocation Table (FAT)
is also supported with the above CRBasic dataloggers.
To avoid potential problems (mixed data and connectivity
issues), configure LoggerNet with one station file per datalogger,
even if the data is retrieved using cards and the computer is
connected to multiple dataloggers for monitoring purposes only.
See the LoggerNet manual Section 4.2.
Set up a station in the LoggerNet network map; see Section 4.1 in the
LoggerNet manual for details. To transfer a program to the datalogger, start
LoggerNet. Click on the “Connect” button in the Toolbar. Select the station
and click on the “Connect” button. Check the datalogger time, it is located in
the upper right hand side of the Connect Screen. If the datalogger and PC time
differ by more than a few seconds, set the datalogger time by clicking on the
“Set Station’s Clock” button. To download a program, click on the “Send”
button. Navigate to the folder where the program is saved, select it, and click
on “OK”.
3.3.2 Remote via PC/CF Card
The datalogger program can be transferred to a datalogger using a PC/CF card.
The CRBasic dataloggers reserve 10% or 80 Kbytes of space, whichever is
smaller, on cards to store programs. Copy the program onto the card using
Windows Explorer.
CAUTION
NOTE
TIP
