Vaisala HydroMet Guide de l'utilisateur télécharger pdf (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,

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Vaisala HydroMet Guide de l'utilisateur Page 75