Owner's Manual

If you have a Campbell Weather Station, select the 4th option under the ET / Rain
Source. A settings window will open. Set the correct Comm port at which the
Campbell Weather Station is connected. Do not change any other settings without
instructions from Toro’s technical support staff.
NOTE: During Sentinel 2X installation, the file named PBD.INI is also written within
the sentinel files. This file contains the information for this settings window and if
deleted, the window will not launch.
If selected, Campbell Weather Station will become the ET source for all field units.
Sentinel will read the ET values for the last complete day directly from the Campbell
Weather Station before sending it to the units.
Both GroWeather and Campbell Weather stations have
updated weather reports which can be opened from the
Sentinel menu.
The diagrams on page 24–25 shows how ET watering is
automatically accomplished when using Sentinel
AutoComm (described in Chapter 11) in conjunction with
one of the ET sources above. In this case ET and rain data
are recorded in one field unit with a rain gauge and ET
gauge throughout the day. The total ET and rain values for
the day are retrieved automatically from the field unit by the
central computer at the time set in Sentinel AutoComm.
Immediately after this, the same values are transmitted
from the central computer to every unit in the current
system. The time required to finish these transmissions
depends on the number of units in the system, and may exceed an hour for very large systems. At the day change in each
field unit, the run time for each ET slot (for which the assigned station has an application rate set in Zone Data) is adjusted to
compensate for the new ET and rain values. Toro recommends setting the ET Send Time about an hour before the day
change. In the event of a communication failure, each unit’s default ET and rain values are used.
Campbell Weather Station
10 - 23
Toro Sentinel Central Software User’s Guide