Dealing with Unstable Stations
Obviously this means that just a handful of minor cracks in the insulation can add up to a substantial increase
in the current reading, and the problem in detecting these kinds of problems is that they seem to come and
go, depending on how wet the soil is.
8.2.
Dealing with Unstable Stations
If a station seems to fail randomly, typical reasons include:
• You have increased the power used to activate stations (See ???). This means that you need to lower
the number of simultaneously running stations, or all stations might not work as intended, giving a seemingly
random problem depending on which schedule you are running.
• There are leaks in the insulation on your two-wire - when the soil is dry everything works just fine, but
when it gets more moist, stations seem to fall out randomly. See the previous section for more details.
• In case you have a loop installation, problems may occur if the loop is broken, as the resistance between
a station and the Ranger Converter 3000 can increase, pushing up the power consumption:
Note
We do no recommend using loops since troubleshooting these can be a complex process.
The resistance between the station and the
Ranger Converter 3000 is 0.75*R
The resistance between the station and Ranger
Converter 3000 the is 3*R
To find out whether your loop is broken, follow this procedure:
1. Open the loop in one end - if the loop goes all the way back to the Ranger Converter 3000, just detach
one of the two-wires on the controller.
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