Davis Instruments Vantage Vue Wireless Weather Station DAV-6250EU 데이터 시트

Setup Mode

13

Because rainy seasons begin and end at different times in different parts of the world, you 
must specify the month you wish your yearly rain data to begin. January 1

st

 is the default 

setting. 
The date the rain season begins affects yearly 
rain rate highs and lows as well as the yearly 
rain totals.
1. Press the + and - keys to select the month 

for the start of the rainy season. 

2. Press DONE to move to the next screen.

Note: This setting determines when the yearly rain total is reset to zero. Davis Instruments 

recommends a January rain season setting (the default), unless you reside on the west coast of 
the United States, the Mediterranean Coast, or experience dry winters in the southern 
hemisphere. If so, change the rain season setting to July 1

st

. If you are performing hydrology 

studies in any of these climates in the Northern Hemisphere, change the rain season setting to 
October 1

st

.

The Cooling and Heating Degree Day Base screens let you determine the temperature base 
that is used to calculate the number of cooling or heating degree days. A cooling degree day is 
used to determine the amount of energy or fuel used to keep a structure like your home or 
business cool. A heating degree day is used to determine the amount of energy or fuel used to 
keep a structure like your home or business warm.
One cooling degree/day is the amount of cooling required to keep a structure cool when the 
outside temperature remains 1°F above the 65°F threshold for 24 hours. One cooling degree/
day is also the amount of cooling required when the temperature remains 24°F above the 65°F 
threshold for one hour. 
One heating degree/day is the amount of heat required to keep a structure warm when the 
outside temperature remains 1°F below the 65°F threshold for 24 hours. One heating degree/
day is also the amount of heat required when the temperature remains 24°F below the 65°F 
threshold for one hour.
The cooling and heating degree days (similar to growing degree days and chilling requirement 
in agriculture) are used for agricultural purposes, to determine crop planting, disease and pest 
management and harvesting. Our optional WeatherLink software (#6510USB, 6510SER, 
6555) makes advanced calculations using the degree day totals. Our optional Agricultural/Turf 
Management Software Module (#6511) adds the special reporting features to the WeatherLink 
software that include evapotranspiration and chilling requirement. 
The Cooling and Heating Degree Day Bases are used to determine the Cooling Degree Day 
Daily Total and Heating Degree Day Daily Total, which display as part of the Weather Center 
when the outside temperature variable is selected. See “Inside and Outside Temperature” on 
page 18 for more information.
A base setting for both the Cooling and Heating Degree Day temperature is not set at the 
factory, allowing you to choose. A base of 65°F (15°C in Europe) is suitable for most 
applications.