Leica TS11 User Manual page 202

TS11/TS15, Technical Data
Formulas
Formula for visible red laser
0.29525 · p
ΔD = 286.34 -
1
TS_105
ΔD
Atmospheric correction [ppm]
1
p Air pressure [mbar]
t Air temperature [°C]
h Relative humidity [%]
α
1
273.15
x (7.5 * t/(237.3 + t)) + 0.7857
If the basic value of 60 % relative humidity as used by the EDM is retained, the
maximum possible error in the calculated atmospheric correction is 2 ppm, 2 mm/km.
-4
4.126 · 10 · h
x
-
· 10
202