Manual

113
DXi User Manual
Appendix B: Flow Sensors
Station Under Flow
Assume station 2 has a lower limit of 100 GPM. The line to station 2 is clogged,
resulting in a flow reading of 53 GPM. Resulting action in this example will be the
generation of a Low Flow alarm and station 2 will be condemned from any current or
future irrigation and the alarm is cleared
Monthly Water Limit Exceeded
The controller has exceeded its monthly watering allocation. This problem cannot
be cleared from the report until the water limit is set to a higher value or until a new
month begins. Irrigation will continue uninterrupted for non-irrigation programs or
irrigation programs that have selected the "Warning" option for monthly limit (see
Setup menu, chapter 5). Irrigation programs that have selected the "Stop" option,
however, will be suspended until the alarm is cleared.
Multiple Stations with Non-Overlap Protection
The DXi controller allows the user the capability of turning "on" several stations
simultaneously. When flow meters are used in this environment, the individual station
limits are summed and compared to the total flow rate. Therefore, you must set up
limits for each station to insure that flow limit checks are performed properly.
Example:
Assume the upper limit for station 1 is 80 GPM and the upper limit for station 2 is 50
GPM. If both stations are on, the controller adds these limits. A problem is reported
if the flow exceeds the total of 130 GPM (80 GPM + 50 GPM).
Alert #:002 of 004
Type: A:Minimum Flow
Recorded: 08/09/17 13:33
P/MV: P1 M1
Stn: 3
Limit: 100 actual: 53 gpm
Press ‘A’ to Clear Alert
Alerts WED 5:43:40 PM
Alert #:002 of 004
Type: A:Monthly Limit Exceeded
Recorded: 08/09/17 13:33
P/MV: M1
Stn: ---
Limit: 482 gpm
Press ‘A’ to Clear Alert
Alerts WED 5:43:40 PM