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Help OW indicates that the
Flow-Clik is
calibrating the
sensor to the
system flow. 4
The Flow-Clik-IMMS System can be installed simply and
easily to the Hunter IMMS System. The Flow-Clik System
consists of the Flow-Clik flow sensor that is installed in
the main line or lateral line of an irrigation system. The
flow sensor, wired directly to the IMMS Site or Controller
Interface, continually monitors flow occurring within the
SYSTEM OVERVIEW AND FLOW-CLIK OPERATION .................................
system and transmits this data to the IMMS Site/Controller
Interface. The Site/Controller Interface provides the power
for the Flow-Clik sensor, allowing it to send signals con-
tinuously telling the Site/Controller Interface to shut down
or start up based upon flow conditions.
Flow-Clik-IMMS Sensor
18/5 Wire to CI or SI
Hunter Controller
IMMS Site or
Controller Interface
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Example of System Operation
This illustrative example shows a small commercial site
using a single ICC controller with a single IMMS Site Inter-
face. The Flow-Clik sensor is connected to the mainline pipe
that provides water to the system control valves. Because
it is installed immediately downstream of the master valve,
it will provide the added protection of shutting down the
irrigation system if a mainline break should occur.
The Flow-Clik-IMMS can be set to automatically shut off
the system whenever actual flow within the system exceeds
the flow of the systems highest flow zone. During
installation of the sensor, a calibration procedure
(see Calibrating the Flow-Clik) is used to set the
Flow-Clik-IMMS at a level of flow dictated by the
highest flow zone. If the system flow exceeds the
calibrated flow by a pre-determined amount, the
Flow-Clik-IMMS will signal to the IMMS Site Inter-
face an overflow condition is occurring.
The figure to the right shows an example of an applica-
tion using the Flow-Clik-IMMS sensor. In this example,
the valve that commands the highest flow is valve number
4, which has a total flow rate of 18.9 gallons per minute
(GPM). The user would turn this valve on and calibrate the
ICC Controller
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Flow-Clik Sensor
Master Valve
Back Flow Preventer
Point of Connection
Valve 4 has been
determined to have the
highest flow
Wire
Mainline Pipe
Flow-Clik is located on
mainline to shut down
the system if the
mainline is ruptured
Valve 4
(18.9 GPM)
SI
Valve 6
(17.0 GPM)
Valve 1
(13.0 GPM)
Valve 7
(16.0 GPM)
Valve 2
(14.0 GPM)
Valve 3
(15.0 GPM)
Valve 5
(16.0 GPM)
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Flow-Clik-IMMS to this zone. If flow exceeds 18.9 gpm, a
signal will be sent to the IMMS Site Interface which would
communicate to the controller to interrupt the system
for a prescribed period of time set by the IMMS central
computer.
The system startup delay and interrupt period can be pro-