Campbell CPEC300, Руководство по эксплуатации продукта

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C-1
Appendix C. Wiring the CR6 and
Optional Energy Balance Sensors
C.1 Overview
Install sensors and system components according to the respective product
manuals. When wiring the sensors to the datalogger or CDM-A116, the default
wiring schemes, along with the number of instruments EasyFlux DL CR6CP
supports, should be followed if the standard version of the program is being
used. TABLES C-1 through C-11 present the wiring schemes.
The minimum required equipment to operate
EasyFlux DL CR6CP
is one of
the CPEC300-series systems with its core components, as described in the
introduction. The additional sensors described in Sections C.1.3 through C.1.12
are optional. Many of the optional sensors are only available for a CPEC306 or
CPEC310 system since it includes a CDM-A116 module. The CDM-A116 is
required for some optional sensors since the CR6 itself does not contain
enough channels for a full energy balance sensor suite; the CDM-A116
effectively increases the CR6 analog channels. If one or more of the optional
sensors are not used, the datalogger or CDM module terminals assigned to the
wires of that sensor should be left unwired.
If the standard datalogger program is modified, the wiring
presented in TABLE C-1 may no longer apply. In these cases,
refer directly to the program code to determine proper wiring, or
contact a Campbell Scientific sales engineer for assistance.
C.1.1 IRGA and Sonic Anemometer
A closed-path EC155 gas analzyer and CSAT3A sonic anemometer must be
connected to the EC100 electronics, and the EC100 must be wired to a CR6
datalogger (via a wiring terminal if using the CPEC306 or CPEC310) for
EasyFlux DL CR6CP to be functional. TABLE C-1 shows the default wiring
for these sensors.
TABLE C-1. Default Wiring for IRGA and Sonic Anemometer
Sensor Quantity Wire Description Color
EC100
Terminal (for
CPEC300)
CPEC System Enclosure
Wiring Terminal (for
CPEC306 and
CPEC310)
EC155 &
CSAT3A
(from EC100)
1
SDM Data Green C1
C1
SDM Clock White C2
C2
SDM Enable Red/Brown C3
C3
Signal Ground Black
G (power
ground)
G
Shield Clear
AG ⏚ (analog
ground)
G
NOTE