
Appendix B. Public Variables
TABLE B-1. CPEC200 public variables
determines which zero/span
Set = True to measure the
pressure offset
kPa
Sample cell pressure measured
with no flow; used to infer
Set = True to enable valve
module temperature control
ºC
Temperature of the valve
module
Boolean flag: True if the valve
temperature is within its
Boolean flag: True if the valve
heater is on
Boolean flag: True if the valve
fan is on
valve_flow is within the normal
Zero/span flow control valve;
can be from 0 (closed) to 1
ºC
Temperature of the scrub
module
Boolean flag: True if the scrub
module temperature is within
Boolean flag: True if the scrub
module heater is on
Boolean flag: True if the scrub
module fan is on
kPa
Pressure measured at the scrub
pump outlet
Set = True to send the CO
2
H
2
O zero command to the
Set = True to send the CO
2
ºC
dewpoint generator; used for
2
O
span command to the IRGA
V
inside datalogger after diode
B-3
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