Spectra-precision Survey Pro CE v3.6 User Manual Manual de usuario Pagina 116

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Users Manual
110
Solar Observations
The Solar Observation screen is used to compute the azimuth to an
arbitrary backsight based on the position of a celestial body, typically
the sun.
You can either use the time set in the system clock on the data
collector or an external timepiece. Whichever you choose, you should
calibrate it against Coordinated Universal Time shortly before
performing the solar observation. An accurate timepiece is critical
when performing solar observations.
Two solar observation methods are available. One method requires
data taken from an ephemeris and the other method does not. The
example below illustrates performing a sun shot using ephemeris
data since that method requires additional steps.
WARNING!
Direct viewing of the sun without a proper
filter will cause serious eye damage. Pointing a total station
directly toward the sun without a solar filter can also damage the
EDM components.
Performing a Sun Shot
1. Setup over a point with known or assumed
coordinates and aim the total station at the
backsight point to where you want to
determine the azimuth.
2. From the Main Menu
, select ,
.
3. A dialog will open asking you to select an
observation method. For this example, select
the
Find Azimuth Using Ephemeris Data
option
and tap .
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