Irritrol MC-E - Manual (Page 39)


Set Overflow percentages
Step 1 – Place the Function dial to the FLOW SENSING position. Enable flow sensing if its disabled.
Step 2 – Select the station number being edited. While in the K Value/Size Code screen, press the button to advance
to the Overflow screen. Press the button to advance the Station number.
Step 3 – Press the button to adjust the Overflow percentage . This value will set the maximum flow value limit.
When actual flow reads above the maximum, the flow alarm LED will activate and an audible tone will beep
every 30 seconds. MC-E will also flash in the display which station posted a faulty flow reading.
The factory default Overflow percentage is 40%. Underflow is not monitored.
Set Flow Delay Time
Step 1 – Place the Function dial to the FLOW SENSING position. Enable flow sensing if its disabled.
Step 2 – Press the button to advance the display to the Underflow/Overflow screen.
Step 3 – Press the button to adjust the flow delay time. The flow delay time is the period that MC-E will wait
after activating a particular station before reading the flow. This delay period allows the irrigation system to
normalize to get an accurate flow reading. The default flow delay time is set at 1 minute but can be adjusted up
to 9 minutes using
.
Step 4 – Press the button to advance to the next station number and adjust the remaining station’s flow delay.
IMPORTANT! Station 2 is no longer a regular station. Leave its settings at 0.
Clear Flow Alarms:
Press the button. Use the procedure below if pressing the button did not clear the alarms.
Temporarily Clear Flow Alarm
Step 1 – To temporarily clear the flow alarm, disable the flow function by placing the function dial to the FLOW
SENSING position
Step 2 – Press the button to deactivate flow. Press the button to reactivate. By deactivating and activating the
flow sensing, it will temporarily stop the flow error beeps and flashing message but MC-E will still retain in
memory which station incurred a flow error. Once that station is reactivated, the flow alarm indicators will
reactivate to remind you that an error occurred.
Permanently Clear Flow Alarm
To permanently clear the flow alarm, simply reactivate the station that returned the flow error.
See “Semi-Auto Operation – Activate Station Manually” for manual station activation. Once MC-E approves that the
station’s flow value is acceptable, the flow alarm is cleared. If the flow problem has not been resolved, the flow error will
return.
Station Number Overflow Percentage Limit
Flow Delay (Minutes)
Flow Value (Learned) Flow Unit