Product specifications

5-2
WeatherLink
store daily summary information. A database containing data stored at a 30-minute archive interval requires
approximately 4400 bytes of disk space per day or 132 KB of disk space per month. The file size changes in a linear
fashion depending on the archive interval. For example, data stored at a one-minute interval requires approximately
3.9 MB a month while the data stored at a two-hour interval requires approximately 33 KB a month.
For phone modem connections, the following additional hardware is required: One external modem to connect to the
WeatherLink and one internal modem or external modem connected to your computer (modems must be Hayes
compatible), and Telephone Modem Adapter (# 6533).
Software System Requirements (for 6510USB)
Computer running Windows™ 98 SE, ME, Windows 2000 or XP with at least one free USB port and 5 MB free disk
space. The amount of disk space necessary for the data files depends on the archive interval. Each archive record in
the database is 88 bytes. Every day in the database has an additional two records totalling 176 bytes that store daily
summary information. A database containing data stored at a 30-minute archive interval requires approximately 4400
bytes of disk space per day or 132 KB of disk space per month. The file size changes in a linear fashion depending
on the archive interval. For example, data stored at a one-minute interval requires approximately 3.9 MB a month
while the data stored at a two-hour interval requires approximately 33 KB a month.
Communication Protocol
Data Channel Characteristics. . . . . . . . . . . . . . . . . . . . . . 1200, 2400, 4800, 9600, 14,400 and 19,200 baud (software-
selectable), RS-232, half-duplex, data only (no CTS or RTS)
Data Logger Functions
Control Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Set archive interval, set/clear calibration numbers, set Longitude/
Latitude, set Year-to-Date rain total, set/clear alarm thresholds, clear
total values, set time/date.
Download . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Data may be transferred automatically to your computer once an hour
using the Auto Download command. More frequent downloads can be
selected to support Internet file transfers. Only new archive data is
transferred during the download.
Data Logger Archived Data
The Data Logger stores up to 2560 archive records (one 52-byte record per archive interval) for later transfer to your
computer. The archive records are stored in 128K of non-volatile memory; protecting the data even if the console
loses power. Maxima, minima, averages, and totals are taken over the archive interval.
Archive Record Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . Time/Date of Record, Inside Temperature (last or avg.), Outside
Temperature (last or avg.), Maximum Air Temperature, Minimum Air
Temperature, Wind Direction (dominant), Wind Speed (average),
Maximum Wind Speed, Rainfall (total), Rain Rate, Inside Humidity
(last), Outside Humidity (last), Barometric Pressure (last), Solar
Radiation, Hi Solar Radiation, UV, Hi UV, Evapotranspiration,
Forecast, Leaf Temperature (2), Leaf Wetness (2), Extra Humidity (2),
Extra Temperature (2), Soil Temperature (4), Soil Moisture (4), Wind
Samples, Wind Tx, Length of Archive Interval, ISS Reception
Archive Interval . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . User-selectable from the following intervals (in minutes): 1, 5, 10, 15,
30, 60, or 120
Archive Storage Capacity (the amount of time before the archive is completely filled):
1 Minute Archive Interval . . . . . . . . . . . . . . . . . . . . . 42 hours
5 Minute Archive Interval . . . . . . . . . . . . . . . . . . . . . 8 days
10 Minute Archive Interval . . . . . . . . . . . . . . . . . . . . 17 days
15 Minute Archive Interval . . . . . . . . . . . . . . . . . . . . 26 days
30 Minute Archive Interval . . . . . . . . . . . . . . . . . . . . 53 days
60 Minute Archive Interval . . . . . . . . . . . . . . . . . . . . 106 days
120 Minute Archive Interval . . . . . . . . . . . . . . . . . . . 213 days
Download . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Data may be transferred automatically from the data logger to your
computer up to once an hour using the Auto Download command.
Data can be transferred more frequently, from once a minute to once
every two hours, to support Internet uploading and other data sharing
features. Only new archive data is transferred during the download.