Download NMC-DC Irrigation

Doc. Name: NMC-DC User Manual
Chapter: Program
NMC-DC Irrigation
Revision: 01
Page: 20 of 38 pages
Farm Management Made Easier
2.8 Filter Flushing
Program filter flushing during irrigation process
7. Filter
Flushing
NOTE: Filter flush process can start only after main
water line is full. Default set at 1 min., see menu 3.3.
NOTE: See graph on next page for further information.
Item
Time Between
Flushing
Flush Time
Delay Between
Filters
Delta Pressure
Delta Pressure
Value (sensor)
Delta Pressure
Delay
Delta Pressure
Reiteration
Dwell Time Main
Description
Time between flushes accumulated during set
irrigation time (one filter flush a time).
Flush time per filter.
Set delay between flushes to build up pressure.
Set flush by pressure sensor. Pressure at filter
inlet/outlet, if there is a significant difference, a filter
may be blocked.
If there is a differential, (DP signal or Analog DP
value), a flush is needed.
Set delay to verify if there is a definite blockage.
Set to give signal after XX flushes. If Delta Pressure
still indicates a blockage, an alarm will be raised.
Open main filter valve before flush to balance
pressure for a reliable flushing process.