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G
R O
W
E A T H E R
L
I N K
®
E T / D
A T A
L
O G G E R
The GroWeatherLink ET/Data Logger (referred to as the “WeatherLink” in this
manual) serves two purposes. It performs the EvapoTranspiration (ETo) calcu-
lations for the GroWeather
and
it allows connection to an IBM-compatible com-
puter using our GroWeatherLink software (Product #7871S). This manual only
contains instructions for connecting the WeatherLink to your GroWeather con-
sole for use in calculating ETo. If you are installing the WeatherLink for use
with the software, ignore this instruction manual completely and follow the
installation instructions contained in the GroWeatherLink software user’s
guide.
L
ABELING
Y
OUR
C
ABLES
Use the label sheets provided with your GroWeather to mark your GroWeath-
erLink cables before you begin installation. Doing this now will help prevent
confusion during the installation and if you ever need to disconnect the cables
at a later date.
✦
Place the C3/LINK label on the end of the short cable coming from the Weather-
Link.
Note:
The long cable coming from the WeatherLink is used to make connection with the PC. It is unneces-
sary for ETo calculation.
W
EATHER
L
INK
I
NSTALLATION
1. Make a note of the barometric pressure, total rainfall, and (if applicable) calibration
numbers.
You must remove power from the station to install the WeatherLink, which
will cause these values to be erased.
