Hunter Rain-Clik Product Information page 33

Manual Cycle Method
You can also use your controller to help calibrate the
Flow-Clik™ in a system with unknown flow rates among
zones. This method is easy, accurate and prevents the user
from having to count and estimate system zone flows.
Simply operate your controller manually and sequentially
"learn" as you cycle through each of the zones.
To calibrate the Flow-Clik with the Manual Cycle
Method:
1. Turn the Startup Delay dial to the 0 second position.
2. Turn the Interrupt Period dial to the Sensor Bypass/
Calibrate position.
3. Start a manual cycle on the controller beginning
with the first zone (for Hunter controllers, use the
One Touch Manual Advance feature).
4. Press and hold the Flow-Clik Calibrate button on
the Interface Box for 5 seconds. The System Status
Indicator will change to yellow indicating that
the Flow-Clik is "learning" the flow of the zone.
Release the button when the yellow light appears.
When finished calibrating, the System Status Indi-
cator will begin to flash green.
5. Advance the controller sequentially to the next
zone. Wait a few seconds for a change in the System
Status Indicator. If the indicator begins flashing
red, repeat Step 4. If the indicator continues to flash
green, advance the controller to the next zone.
6. Repeat until all zones have been checked.
7. Set the Startup Delay and Interrupt Period settings
on the Interface Box (see Setting the Startup Delay
and Interrupt Period).
Note: If your controller is programmed to operate more
than one zone at a time, those zones will have to
be activated together to calibrate the Flow-Clik to
total system flow.
Setting the Startup Delay
The high velocities that are common
during initial activation of an irriga-
tion cycle could cause the Flow-Clik
to sense a "high flow" situation (pri-
marily due to air trapped within the
system) and subsequently shut down
the irrigation system at the beginning of every cycle.
The Flow-Clik addresses the problem by providing a
programmable Startup Delay to allow the system to
Flow-Clik
stabilize prior to the Flow-Clik monitoring for high
flow conditions. To program the Startup Delay, turn
the dial on the left side of the Interface Box to one of
the eight preset delay positions from 20 seconds to
300 seconds.
Note: The 0 second delay position is used for calibration
of the Flow-Clik during initial installation only.
The startup delay required may vary between
zones. Select the largest start up delay required for
all zones.
Setting the Interrupt Period
The Flow-Clik monitors for a high
flow condition, shutting down the sys-
tem or individual zone when overflow
occurs. Once the system has been shut
off due to a high flow condition, the
Flow-Clik turns the system back on
automatically after a pre-selected amount of time has
passed. By waiting out a selected amount of time al-
lows for the system to resume watering areas that may
not be affected by the "problem."
The Interface Box offers seven pre-selected off times
from 5 to 60 minutes that are programmable by a single
dial. To set the Interrupt Period, turn the dial on the
right of the Interface Box to the desired period of time
you would like the Flow-Clik to keep the system off
after a high flow condition has occurred before con-
tinuing to irrigate.
Example: A system that is mostly spray zones set for
10 minute run times could select a delay of 10 min-
utes so the system is only off during the operation of a
single zone.
Manual Restart Feature
If the dial is set to the Restart Manually position, and
an over flow condition is detected by the Flow-Clik,
irrigation will not resume until the system has been
manually reset. To manually restart the system after
an overflow condition has occurred, press the Restart
System button once on the Interface Box. The System
Status indicator light will change from red to green or
flashing green (if flow is occurring).
Sensor
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