PP Systems CIRAS-3 - Numerical Data Display (CPY-4 and CPY-5)

CIRAS-3 Operation Manual V. 1.09 149 support@ppsystems.com
Numerical Data Display (CPY-4 and CPY-5)
Measured Data
CO2r
Current CO
2
concentration (µmol mol
-1
).
∆CO2
Change in CO
2
concentration during measurement sequence (µmol mol
-1
).
H2Or
Current H
2
O concentration (mb)
∆H2O
Change in H
2
O concentration during measurement sequence (mb).
PARi
Measurement of Photosynthetically Active Radiation (PAR) inside the CPY-
4/CPY-5 (µmol m
-2
s
-1
).
∆Time
Change in time during measurement sequence (Seconds).
Tchamber
Air temperature inside the CPY-4/CPY-5 (
o
C).
Tsoil
Soil temperature if STP-1 is used (
o
C).
Calculated Data
Acan
Canopy Assimilation rate (g m
-2
hr
-1
or µmol m
-2
s
-1
).
Ecan
Evaporation rate (g m
-2
hr
-1
or mmol m
-2
s
-1
).
RH%
Relative humidity based on Tsurface (%).
WUE
Water use efficiency (Assimilation/Transpiration). Note that WUE can only be
calculated if the Transpiration Units are set to mmol m
-2
s
-1
and
Assimilation, Respiration units set to µmol m
-2
s
-1
under Settings.
F1
F3
F2
F4
F6
F5
F7
F8