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ESPLXD-ET Controller
2-Wire Path Diagnostics
Although finding the exact location of issues in the field often requires
some amount of in-the-field troubleshooting with a clamp meter, the
controller has some built-in features to help you narrow down the
possible issues.
Before beginning 2-Wire path diagnostics, it may be helpful to take the
following steps to eliminate possible other causes:
1.
Review and Confirm Programs to check station priorities.
If a suspect station isn’t watering as scheduled, the underlying
issue could be programming-related. The ESPLXD-ET controller
irrigates based on the station priorities. If multiple programs are
running, higher priority stations will irrigate prior to medium
priority stations, and medium priority stations will irrigate prior to
lower priority stations. See Section B, Station Setup and Confirm
Programs for more details.
2.
Run a Test All Stations check to ensure valves are working properly.
The Test All Stations manual test will take priority above pre-
programmed irrigation and allow you to determine which stations
are working properly. See Test All Stations for more details.
Short Finding
The ESPLXD-ET controller can quickly determine if shorts are present
on the two-wire path.
b
g
Turn the controller dial to Test All stations/Check System.
A
The System Diagnostics screen appears. Press the Down Arrow
button to select 2-Wire Diagnostics; then press Next.
B
The 2-Wire Diagnostics screen appears with Short Finding
selected; press Next.
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