Distance Corrections - Leica TC605 User Manual

Distance corrections

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Meteorological correction (ppm)
The distance measurement is affected by the
meteorological conditions. The distance can be
corrected with appropriate ppm values. The ppm values
for temperature and atmospheric pressure are obtainable
from the diagram in section "Technical data". Instead of
the atmospheric pressure the mean height above sea
level of the survey site may be used for interpolation.
For example, 10°C (18°F) temperature difference makes
a difference of 1mm in a measured distance of 100 m =
10 ppm.
∨PPM/MM
à
ppm:
mm :
Enter value.
Confirm input and continue to enter the prism constant
(mm).
Termination and back to CONFIG MENU.
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