LI-COR li-7200 - LI-7200 RS Implementation

Section 8. Theory of Operation
LI-7200RS Implementation
Air pressure, P
g
, (kPa) and temperature, T
g
, (°C) are measured in the sampling cell
(see A Note About Pressure And Temperature on the facing page). W
f
is the mole frac-
tion of water vapor, and .
Label Description Equation
H
2
O mmol/m
3
H
2
O number
density
8-20
H
2
O g/m
3
H
2
O mass density
8-21
H
2
O mmol/mol H
2
O mole fraction
8-22
H
2
O dry
mmol/mol
H
2
O dry mole
fraction
8-23
Dew Point (°C) Dew point
temperature
8-24
8-25
CO
2
mmol/m
3
CO
2
number
density
8-26
CO
2
mg/m
3
CO
2
mass density
8-27
CO
2
µmol/mol CO
2
mole fraction
8-28
CO
2
dry
µmol/mol
CO
2
dry mole
fraction
8-29
Table 8-1. Fundamental equations used in the LI-7200RS calculations.
8-6 LI-7200RS Enclosed CO
2
/H
2
O Analyzer