© 2010 Delta-T Devices Ltd
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10
5
Connect the solenoid valve and start irrigation
5.1. Connect the solenoid valve
Turn off irrigation to the bed. Cut the cable from the irrigation timer to the solenoid
valve and splice in the cable from the GP1 control relay using the connector block
as shown below. You will need to mount the block in a small waterproof enclosure
if the connection is likely to get wet.
Note
: cable colours are likely to be different from this illustration.
5.2. Adjust the irrigation timer
Adjust your irrigation timer to water for longer periods.
The SM300 and GP1 will prevent your irrigation system from over-watering, so you
can safely increase the irrigation times. The sensor control will attempt to switch
the irrigation
ON
soon after the moisture level falls below the lower threshold
(depending on the time set in the recording rate) so it is important that the timer
allows irrigation to start within a reasonable time.
If you are watering by drip irrigation you may want to adjust the timer to irrigate
continuously throughout the day, leaving all the control to the SM300 and GP1.
5.3. Start irrigation control
Connect your laptop to the GP1, start
DeltaLINK
, and in the main
Logger
view
click on
Start
.
Turn on your irrigation system.
Your irrigation system is now under sensor control
