4
Additional Tools and Materials
The ET system is supplied with 100’/33m of wire for connection of the
ET Sensor. This wire has been specially tested for ET installations and
is approved to 100’/33m max.
If any other wire is to be used, Hunter recommends 2 x 18 AWG/1mm
wire rated for direct burial, color-coded or otherwise marked to
identify the separate conductors. The ET signal is a low-voltage DC
and the conductors must be distinguished from each other to maintain
polarity. Either stranded or solid wire is acceptable (stranded is more
flexible and resists breakage). The ET signal is rated to 100’/33m max
and is not tested or approved to any greater distance.
Choose the Location
ET Sensor should be placed in an area representative of the plants it is
designed to irrigate.
The ET Sensor should be
post or pole-mounted in a full-sun turf
grass area, approximately 6 ft./2m above the grass, with approxi-
mately 6 ft./2m of turf grass surrounding it on all sides
. The ET
Sensor weighs approximately 6 lbs./2.5kg.
This may not always be practical, so choose the actual location
according to the following guidelines:
a) ET Sensor must be mounted within 100 ft./33m of the ET Module
and the controller.
b) Avoid positioning ET Sensor over large areas of concrete, asphalt,
roof tile, or shingles. These surfaces will cause the sensors to
read much higher levels of ET than plants.
c) Choose a sunny location between 6 and 20 feet (2 and 7m) above
the ground.
d) Do not mount the sensor where it will be hit by sprinkler spray or
other irrigation!
ICC Controller
ET Module
ET Sensor
ET Sensor Wire (Included with ET
System) 100 ft./30m, maximum
6 ft/2m
Above
Turf,
Minimum
15 ft/5m Clearance From Any Structure
INSTALLINg ThE ET SENSOr................................................................................................................
e) Do not mount the ET Sensor under a ledge or overhang, and avoid
placing it directly under tree canopies.
ET Sensor needs un-
blocked sun and rain to function correctly!
f)
Do not mount the ET Sensor within falling distance of power
lines!
High voltage shocks can injure and kill.
Summary of Contents for ET System
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