Spectra Precision Survey Pro v5.0 - Manual (Page 68)

The following screens are used to setup PPM correction parameters for the station setup.
Apply PPM [In Instrument] : Use this option if you set the instrument to apply the PPM correction. In this case, the
distances returned to Survey Pro by the instrument have already been corrected for PPM.
[Record PPM values to file ...]: Opens up the PPM Booking screen where you can record the temperature and
pressure values entered into the instrument for book keeping purposes.
Apply PPM [In Survey Pro] : Use this option if you set the instrument to 0 PPM correction, and you want to have
Survey Pro correct measured slope distances for PPM.
[Pressure]: Enter the atmospheric pressure and pressure units.
[Temperature]: Enter the temperature and temperature units.
[PPM]: Enter the parts per million correction factor for measured slope distances.
Certain instruments use the Survey Pro application to control PPM correction, if you are connected to an instrument of
this type, the PPM correction page will show the following controls:
[PPM Off] : Use this option to disable PPM correction of measured slope distances.
[PPM On] : Use this option to enable PPM correction of measured slope distances.
[Pressure]: Enter the atmospheric pressure and pressure units.
[Get Pressure]: (if available) Gets the atmospheric pressure from the barometer built into the instrument.
[Temperature]: Enter the temperature and temperature units.
[Get Temperature]: (if available) Gets the temperature from the thermometer built into the instrument.
[Calculate]: Triggers the instrument to calculate the PPM correction factor from the input values.
[PPM]: Enter the parts per million correction factor for measured slope distances.
Station Setup PPM Correction
The PPM Booking screen is used to record the temperature, pressure, and PPM values that were set on the instrument
for the case where the instrument is applying the PPM correction.
Note: The PPM correction values entered on this page are for book keeping purposes only. When PPM is being
applied in the instrument, the instrument will correct measured slope distances for PPM and the corrected distance is
returned to Survey Pro.
[Pressure]: Enter the atmospheric pressure and pressure units.
[Temperature]: Enter the temperature and temperature units.
[PPM]: Enter the parts per million correction factor for measured slope distances.
Survey Pro Help 5.00
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