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CPEC300/306/310 Closed-Path Eddy-Covariance Systems
81
lists the variables found within the
Attendant
Zero/Span
menu and its submenus. The table also shows the
equivalent variable names in the datalogger’s Public Table. If a
CR1000KD is not available, performing a zero/span may
alternatively be done from
LoggerNet
software by using the
Connect Screen
to create a Numberic Display that includes all of
the variables in TABLE
. Follow the instructions in the
sections above, substituting public table variable names (last
column in TABLE
) for the variable names in the menus (first
colum in TABLE
).
Aliases have been used for public variables found in the zero and
span menus in order to make the meanings of the variable more
readily understood or to shorten the length of the variable names
so they fit on the keypad display screen.
TABLE 7-1. Variables Found in Menus for Zero and Span
Variable Name
Default
Description
Name of variable in
Public Table (when no
CR1000KD available)
Valv Tmpr Ok
-
This is a TRUE/FALSE read-
only variable. It must read
TRUE
in order to perform an
auto zero/span. If it reports
FALSE
, the valve module
temperature is not within its
operating range and
Valv T Ctl
On
should be set to
TRUE
to
bring the temperature within
range. This variable is ommitted
if the system is not a CPEC310.
valve_tmpr_ok
Valv Tmpr
-
This is a read-only variable
showing the temperature in °C of
the valve module. This variable
is ommitted if the system is not a
CPEC310.
valve_tmpr
Scrb Tmpr Ok
-
This is a TRUE/FALSE read-
only variable. It must read
TRUE
in order to perform an
auto zero using the scrub module
as the zero gas source. If it
reports
FALSE
, the scrub
module temperature is not within
its operating range and
V/S T Ctl
On
should be set to
TRUE
to
bring the temperature within
range. This variable is ommitted
if the system does not have a
scrub module.
scrub_tmpr_ok
NOTE
NOTE
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