Vaisala Hydromet Data Collection Platform - Manual (Page 75)

Chapter 3 _______________________________________________________ AWS Client Software
VAISALA_______________________________________________________________________ 73
Offset Calibration
1. On the Settings menu, select Calibration. The list of
measurements available for calibration is displayed.
2. Select the measurement you want to calibrate from the list.
3. Click Offset Calibration.
4. The Offset Calibration view shown in Figure 37 on page 73 is
displayed with information on the measurement and its calibration.
The Value field shows the latest measurement value obtained from
the sensor.
Figure 37 on page 73 illustrates wind sensor calibration, a typical
offset calibration situation: unless the weather station is properly
aligned in a north–south direction during installation in the field,
the wind sensor needs to be calibrated.
0802-146 Figure 37 Offset Calibration Window
5. Enter the new value for the measurement in the Value field and
select Calibrate. The offset value for the measurement is adjusted
accordingly: if, for example, you are calibrating a temperature
measurement, and the value obtained from the sensor is 23 °C,