Atmospheric coefficients

The atmospheric coefficients page allows to define the values that must be considered for the calculation of the distances measured.

For standard application programs the distance is corrected on account of atmospheric influences. Heights are reduced with the standard refraction coefficient.

It is possible to access the coefficients page from different pages:

• In the station setup page select Atmospheric coefficient.

• With robotic total stations open the Robotic TPS page, select Tools and select Atmospheric coefficients.

• With mechanical total stations open the TPS Settings page and select Coefficients.

The page allows to define atmospheric corrections and refraction.

• Atmospheric correction: atmospheric correction is applied to measurements.

• Temperature (°C): value for the temperature in degrees Celcius. Tap on the orange arrow to change the temperature unit from Celsius to Fahrenheit.

• Pressure (mb): value for the pressure in millibar. Tap on the orange arrow to calculate the pressure from altitude and pressure at sea level or from altitude.

• Humidity (%): value for humidity in percent.

• Atmospheric PPM: the calculated PPM considering all parameters is displayed.

• Refraction/Sphericity: refraction correction is applied to measurements.

• Refraction coeff.: refraction coefficient to be used for calculation.