Manual

106
DXi User Manual
Appendix B: Flow Sensors
Examples
Overflow in Controller/Main Line Break
Assume the maximum controller flow rate is 500 GPM. A main line break occurs
while attempting to water station 7. The break results in a flow of 510 GPM. The
following alert is displayed, as well as the station number and GPM reading:
If we were then to drill down into the alert, we could see more information about this
condition. All irrigation is suspended until the alert is cleared. In addition, Normally
Open Master Valves are energized.
The 'Limit' number above is the actual ow value
at the moment the alarm was triggered.
This situation may also be caused by a valve that fails to close.
Station Overflow
Assume station 2 has an upper limit of 300 GPM. A broken line occurs, resulting in
a 400 GPM flow. Resulting action in this example will be the generation of a High
Flow alarm, station 2 will be condemned from any current or future irrigation, and
the alarm is cleared.
(0) Active Programs
(0) Active Stations
(1) Alerts
Dashboard SAT: 239-239 WED 5:43:40 PM
A: Main Line Limit Exceeded
0 (GPM) Remote: 0~
Alert #:001 of 004
Type: A:Main Line Limit Exceeded
Recorded: 08/09/17 13:33
P/MV: P1 M1
Stn: 1,2,3
Limit: 510 gpm
Alarm Number: 5
Press ‘A’ to Clear Alert
Alerts WED 5:43:40 PM
Alert #:002 of 004
Type: A:Maximum Flow
Recorded: 08/09/17 13:33
P/MV: P1 M1
Stn: 3
Limit: 50 actual: 65 gpm
Press ‘A’ to Clear Alert
Alerts WED 5:43:40 PM