Baseline Systems BaseStation 3200 - Manual (Page 71)

BaseStation 3200 Advanced Irrigation Controller Manual
IMPORTANT NOTE! The learn flow cycle does not start until you turn the dial to the Auto Run position. Depending
on how many zones a program has, the learn flow cycle could take more than an hour to complete.
When the learn flow cycle begins, it will pause any running programs (on that mainline), and it will run one zone at
a time to learn its flow. It will take several minutes to learn the flow for each zone. For example, if the pipe fill time
is two minutes, here are the learn flow steps for each zone.
1. Turn on the zone.
2. After two minutes, the pipe has filled and the flow has stabilized.
3. Take a one minute stable flow reading at the end of the third minute.
4. Take a second stable reading at the end of the fourth minute.
5. If the two readings are within 5%, take the average and set this as the zone learn flow value and set the status
as passed.
6. If the values differ by more than 5%, take a third reading at the end of the fifth minute.
7. Average the readings and set the learn flow value.
8. If the readings are within 5% of the average, set the zone status to pass, otherwise set it to failed and issue an
alert.
9. When the learn flow cycle completes, the values are displayed in the Zone Flow Setup screen.
Learning the Flow by Zone
For each zone, you can either set the design flow manually, or you can configure it to run through a learn flow
cycle and have its design flow set automatically. You should reconfigure the design flow for a zone whenever you
change out a sprinkler or emitter on a zone or whenever the learn flow cycle fails for a zone.
1. Turn the dial to the Flow Menu position.
2. Press the NEXT button to select Zone Flow Setup, and then press the
ENTR button. The Zone Flow Setup screen displays.
3. In the Zone field, press the + button to select the zone that you want to
schedule a learn flow cycle for.
Note: If you already entered the design flow for this zone, the design flow
GPM amount displays in the Flow Rate field. After a learn flow cycle is
completed successfully, the design flow value is replaced by the learn
flow value. The learned flow value is recorded on the screen so this
information is not lost when someone manually changes the design flow
value.
4. Press the NEXT button to go to the Learn Flow Cycle field. If the system already ran a learn flow cycle for this
zone, the status of that cycle (complete or failed) displays in the field. To schedule a learn flow cycle, press the
+ button to advance the delay time by 5 minutes.
5. When you have finished scheduling the learn flow cycle, turn the dial to the Auto Run position.
IMPORTANT NOTE! The learn flow cycle does not start until you turn the dial to the Auto Run position.
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