CPEC300/306/310 Closed-Path Eddy-Covariance Systems
16
UV-resistant, black, high-density polyethylene jacket can be cut to length and
installed onsite. The tubing should be of 1/4-in OD to fit the Swagelok fittings
on the EC155 and the valve module.
Minimize the length of these tubes to reduce the amount of equilibration time
required after the zero or CO
2
span cylinder is selected. One long tube is
required to connect the valve module to the EC155, and two short tubes are
required to connect the zero and CO
2
span cylinders to the valve module. Pre-
swaged tube assemblies are available for this purpose and are cut to a user-
specified length.
USB Memory Card Reader/Writer:
The USB memory card reader/writer is
shown in FIGURE
. It is a single-slot, high-speed reader/writer that allows
a computer to read a memory card. When used with Campbell Scientific
equipment, the memory card reader/writer typically reads data stored on
microSD cards, but it can read many different types of memory cards.
FIGURE 4-19. USB memory card reader/writer
4.9 Support Software
There are several software products available for interfacing a computer to the
CR6 datalogger.
EasyFlux DL:
EasyFlux DL
for Closed-Path Eddy Covariance systems is a
CRBasic program that comes pre-installed into the CR6 that was purchased
with this system. If a user has a system that was not ordered with a CR6 or has
an older CPEC system, the
EasyFlux DL
program can be downloaded here:
www.campbellsci.com/easyflux-dl
EasyFlux DL
for Closed-Path Eddy
Covariance systems enables a CR6 datalogger to collect fully corrected fluxes
of CO
2
, latent heat (H
2
O), sensible heat, ground surface heat flux (optional),
and momentum from a Campbell Scientific open-path EC system with optional
energy balance sensors. The program processes the EC data using commonly
applied corrections in scientific literature. A more detailed description of this
program and how to properly configure it for your application can be found in
Configure the EasyFlux DL Program
(p. 34)
PC200W
:
PC200W
is a free, starter software package that provides basic tools
such as clock set, program download, monitor data, retrieve data, etc.
PC200W
supports direct connections between PC and datalogger but has no
telecommunications or scheduled data-collection support.
PC400
:
PC400
is a mid-level software package that supports a variety of
telecommunication options, manual data collection, data display, and includes
