Manual

26
DXi User Manual
Chapter 4: Setup
Limits
Monthly Limit: The number, in total gallons, that the irrigation system should
not exceed per month. If it does, the DXi controller will either generate an alert
(and keep watering) or simply stop watering until a new month begins. Watering
can also be resumed by increasing the monthly limit.
Main Line Limit: The number, in gallons per minute, the flow of the main
line shall not exceed. If the calculated flow ever does exceed this number, an
alert will be triggered condemning all irrigation until cleared. The number
should be set to a value higher than the flow if all simultaneous stations (six) are
“on” but lower than if there is a main line break.
Unscheduled Limit: During periods of no programmed irrigation activity
or no manually activated irrigation, the flow in a system should be zero. The
Unscheduled Limit number, then, is the number in gallons per minute set to
trip an alert if flow is detected during these times of inactivity, condemning all
automatic irrigation until cleared.
Unscheduled flow conditions may be due to broken water lines, defective
valves, faulty solenoids, and/or more.
Flow Check Delay: When a valve is activated, the initial flow rate may be
significantly higher than the valve’s “steady” state. This could be due to drainage
of water lines, waiting for pump water, or other. The initial high flow rate could
therefore trigger many unwanted and premature alerts. This Flow Check Delay
delays the calculation of flow for a period of two to nine minutes to allow the
flow to stabilize.
To set this number accurately, observe which station takes the longest time for
its GPM rate to stabilize. Round this time period to the next minute and use
that rounded value as the Flow Check Delay value
Press or to get to “Monitoring” Flow Options.