User`s guide

Virtual Weather Station User's Guide
-31- 04/10/07
6.15.4 Davis Instruments Wireless Vantage Pro2
and Vantage Pro2 Plus
Channel
Part
No.
Description
Where
to Buy
6372
Wireless Indoor /
Outdoor Temperature
Sensor with
Waterproof Probe
Link
6382
Wireless
Temperature/Humidity
Station with Standard
Radiation Shield
Link
6345
Wireless Leaf & Soil
Moisture/Temperature
Station
Link
Ch 1, 2, 3
Temperature
6345CS
Complete Wireless
Soil
Moisture/Temperature
Station
Link
6345
Wireless Leaf & Soil
Moisture/Temperature
Station
Link
Ch 1, 2, 3
Humidity
(leaf
wetness, soil
moisture)
6345CS
Complete Wireless
Soil
Moisture/Temperature
Station
Link
Table 10 – Davis Vantage Pro2/Pro2 Plus Optional Sensors
6.16 Jpeg Files
Menu Shortcut: Settings X Jpeg File Settings
Jpeg is a standard image format for web pages. Virtual
Weather Station periodically creates jpeg images for
inclusion in your web page, providing real time weather
conditions which can be viewed from a web browser.
You can only generate jpeg images for weather displays
currently on your desktop.
6.16.1 Image Quality
You can adjust the image quality of the jpeg image.
Increasing the quality increases the file size. In general, the
image quality is the same for 80 - 100%. The recommended
quality is 80%.
6.16.2 Jpeg File Location
Specifies where the jpeg files are saved. For web server
applications, save in the web server root directory.
6.16.3 Jpeg File Naming Convention
To view the filename for the jpeg image, right-mouse-click
on the weather display and the jpeg filename will be
displayed.
For example, the jpeg filename for the Outdoor
Temperature Spectrum is wc007.jpg
Figure 19 - Jpeg File Settings
6.17 Advanced Parameter Settings
Menu Shortcut: Settings X Advanced Parameter
Settings
Virtual Weather Station provides the following advanced
parameter settings.
6.17.1 Degree Days Heating and Cooling
Because temperature plays an important part in the rate of
development of plants and many pests, a measurement
which takes into account the accumulation of heat with
passing time is important to predict maturation. Degree-
days provide a measure for calculating the effects of
temperature on the development of plants or pests.
One degree-day is the amount of heat which accumulates
when the temperature remains one degree above the