Velleman WS2800 Software User’s Guide User Manual

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Help.....................................................................................................................................................................18

Options ....................................................................................................................................................................18

Setting Alarms .........................................................................................................................................................21

Min Max Values.......................................................................................................................................................22

Graphical Forecast...................................................................................................................................................22

Temperature and Humidity .....................................................................................................................................23

Dewpoint Temperature...........................................................................................................................................23

What is the “dewpoint”? ....................................................................................................................................23

The relationship between dewpoint, Temperature and relative humidity ........................................................23

How does the dewpoint affect me?....................................................................................................................23

Min and max dewpoint .......................................................................................................................................24

Windchill..................................................................................................................................................................24

What is wind chill? ..............................................................................................................................................24

How does wind chill affect me? ..........................................................................................................................24

Relative (air) Pressure .............................................................................................................................................25

What is relative pressure? ..................................................................................................................................25

Air pressure and weather forecasting.................................................................................................................25

Relative Pressure Alarm ......................................................................................................................................25

Rain..........................................................................................................................................................................26

Last hour .............................................................................................................................................................26

Last 24 Hours ......................................................................................................................................................26

Last week ............................................................................................................................................................27

Last month ..........................................................................................................................................................27

Total ....................................................................................................................................................................27

Wind Speed and Direction.......................................................................................................................................28

Current Wind Speed............................................................................................................................................28

Wind Direction History Indicators.......................................................................................................................28