Campbell-scientific CPEC200 Closed-Path Eddy-Covariance System Instrukcja Użytkownika Strona 73

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Appendix B. Public Variables
TABLE B-1. CPEC200 public variables
When Defined
Usage
Variable Name
Units
Description
VALVE_MODULE
INFO/USER
valve_number
Valve number (0 to 6);
determines which zero/span
valve is selected
VALVE_MODULE
USER
DO_P_offset
Set = True to measure the
pressure offset
VALVE_MODULE
INFO
press_offset
kPa
Sample cell pressure measured
with no flow; used to infer
valve flow
VALVE_MODULE
INFO/USER
valveTctl_ON
Set = True to enable valve
module temperature control
VALVE_MODULE
INFO
valve_tmpr
ºC
Temperature of the valve
module
VALVE_MODULE
DIAG
valve_tmprOK
Boolean flag: True if the valve
temperature is within its
operating range
VALVE_MODULE
INFO
valveHeat_ON
Boolean flag: True if the valve
heater is on
VALVE_MODULE
INFO
valveFan_ON
Boolean flag: True if the valve
fan is on
VALVE_MODULE
INFO
valve_flow
LPM
Zero/span flow
VALVE_MODULE
DIAG
valve_flow_OK
Boolean flag: True if
valve_flow is within the normal
range
VALVE_MODULE
INFO
valveControl
Zero/span flow control valve;
can be from 0 (closed) to 1
(open)
SCRUB_MODULE
INFO
scrub_tmpr
ºC
Temperature of the scrub
module
SCRUB_MODULE
DIAG
scrub_tmprOK
Boolean flag: True if the scrub
module temperature is within
its operating range
SCRUB_MODULE
INFO
scrubHeat_ON
Boolean flag: True if the scrub
module heater is on
SCRUB_MODULE
INFO
scrubFan_ON
Boolean flag: True if the scrub
module fan is on
SCRUB_MODULE
INFO
scrub_press
kPa
Pressure measured at the scrub
pump outlet
VALVE_MODULE
INFO/USER
DO_zero
Set = True to send the CO
2
and
H
2
O zero command to the
IRGA
VALVE_MODULE
INFO/USER
DO_CO2_span
Set = True to send the CO
2
span command to the IRGA
VALVE_MODULE
USER
H2OSpanDewPt
ºC
Setpoint temperature on
dewpoint generator; used for
H
2
O span
VALVE_MODULE
USER
DO_H2O_span
Set = True to send the H
2
O
span command to the IRGA
always
INFO
BattVolt
V
Supply voltage; measured
inside datalogger after diode
voltage drop
B-3
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