Baseline Systems BaseStation 3200 V12 - Manual (Page 109)

BaseStation 3200 Advanced Irrigation Controller Manual
3. In the Blink Interval field, press the + or –
button to indicate the number of seconds
between blinks.
4. Press the Enter button to start the test.
While the blink test is in progress, the Blink
Interval field displays “Running” and the
Status box displays the results.
5. To stop the test, press the Back button.
Troubleshooting the Two-Wire: High Current or Shorted
The first step in troubleshooting the two-wire is to isolate what works from what does not work. A
complex system with many branches in the two-wire path can be difficult to troubleshoot while
everything is interconnected. When a short can be isolated to a single segment of the two-wire
system, or to a single component, it becomes much easier to fix the problem.
As you approach problem solving situations, separate problems into the following categories:
• It has never worked.
• It worked before and now it does not.
For problems that fall into the second category, find out what has changed because these factors
might provide some insight or a place to start looking for solutions.
In order to isolate the short, you must physically disconnect two-wire segments and components
from the system in a logical manner. Then you can add the two-wire segments and components
one at a time in order to isolate the problem.
• Begin by disconnecting half of the two-wire.
• Next, determine whether the system is running properly with just half of the two-wire
connected. If it is, you know that the short is in the other half of the two-wire. If the system
does not run properly, you know that the problem is in the half of the two-wire that is
connected.
• After you have isolated the short to a half of the two-wire, you can start breaking
connections, one at a time, in order to isolate exactly where the problem is.
• After you isolate the short, you need to find out what changed recently that may have caused
the problem.
 Is there the possibility of lightning damage?
 Any recent work done on the site that could have damaged the buried wire?
• If there is no apparent damage to the two-wire, start disconnecting devices, one at a time,
from the shorted segment until the problem goes away.
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