Product specifications

(
510
)
732-9229
•
FAX
(
510
)
670-0589
•
[e-mail]
•
www.davisnet.com
3465 Diablo Ave., Hayward, CA 94545-2778
5-14
WeatherLink
Archive Record Data . . . . . . . . . . . . . . . . . . . . . . . . . . . .Inside Temperature (avg.), Outside Temperature (avg.), Maximum Air
Temperature, Minimum Air Temperature, Wind Direction (dominant), Wind
Speed (avg.), Maximum Wind Speed, Rainfall (increment), Inside Humidity
(last), Outside Humidity (last), Barometric Pressure (last), Time/Date of
Record
Archive Interval . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . User-selectable from the following intervals (in minutes): 1, 5, 10, 15, 30,
60, or 120
Storage Capacity (the amount of time before the archive is completely filled)
1 Minute Archive Interval . . . . . . . . . . . . . . . . . . . . . 1 day
5 Minute Archive Interval . . . . . . . . . . . . . . . . . . . . . 5 days
10 Minute Archive Interval . . . . . . . . . . . . . . . . . . . . 10 days
15 Minute Archive Interval . . . . . . . . . . . . . . . . . . . . 15 days
30 Minute Archive Interval . . . . . . . . . . . . . . . . . . . . 30 days
60 Minute Archive Interval . . . . . . . . . . . . . . . . . . . . 60 days
120 Minute Archive Interval . . . . . . . . . . . . . . . . . . . 120 days
Communication Protocol
Data Channel Characteristics. . . . . . . . . . . . . . . . . . . . . . 1200 or 2400 baud (switch-selectable), RS-232, half-duplex, data only (no
CTS or RTS)
Isolation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Ground isolation is provided by photo-couplers in the Link Isolator
(available separately).
WeatherLink for Macintosh Software Information
Data Display Options
Real-Time Displays (these displays update in real-time)
Graphical Bulletin . . . . . . . . . . . . . . . . . . . . . . . . . . .Displays current conditions, highs and lows, and barometric trend.
Summary Window (text) . . . . . . . . . . . . . . . . . . . . . .Displays current conditions and highs and lows along with the time at
which they occurred.
Plotting Displays
Plot Window. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Enables graphing of all database information (multiple variables may be
plotted on a single graph) over any of the following spans (1 hr, 4 hr, 8 hr, 12
hr, 1 day, 3 days, Week, Month, Year).
Strip Charts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Three stacked line graphs (multiple variables may be plotted on a single
graph), which can be updated at the time of each archive interval. Strip
charts may use any of the following spans (1 hr, 4 hr, 8 hr, 12 hr, 1 day, 3
days, Week, Month, Year).
Reports
Chilling Requirements. . . . . . . . . . . . . . . . . . . . . . . . Calculates the number of hours spent below a specified temperature
during a specified period of time. Typically used to determine if the
coldness requirement for a fruit tree in dormancy has been met.
Degree-Days . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Tracks degree-days and progress towards development for an unlimited
number of crops or pests; base and upper development thresholds and
development totals entered by user.
NOAA Monthly Summary . . . . . . . . . . . . . . . . . . . . .Based on the National Oceanic and Atmospheric Administration (NOAA)
Monthly Weather Watcher report.
NOAA Yearly Summary . . . . . . . . . . . . . . . . . . . . . . Based on the National Oceanic and Atmospheric Administration (NOAA)
Yearly Weather Watcher report.
Soil Temperature Hours . . . . . . . . . . . . . . . . . . . . . .Calculates the time that soil temperature has been above freezing (or
some other threshold). Typically used to determine a time to plant crops.
Sunrise & Sunset Times . . . . . . . . . . . . . . . . . . . . . . Calculates sunrise and sunset times for any given latitude, longitude and
date.
Temperature/Humidity Hours . . . . . . . . . . . . . . . . . .Calculates the number of hours the temperature has been either above or
below a given threshold, and that during which time the humidity was
above a given threshold from a given start date. Typically used to track
conditions for the development of agricultural pests and molds.
Yearly Rainfall . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Calculates rainfall totals broken down by month and year. Rainfall data
may be altered and data may be added to reflect rainfall totals for months
and years which are not contained in your weather database.