Hunter Flow-clik User Manual
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FLOW-CLIK
Flow Sensor
Owner’s Manual and
Installation Instructions
Version for use with any standard 24 volt controllers
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TABLE OF CONTENTS .....................................................................................
Introduction .............................................................................................................................. .....................................1
Flow-Clik Components ....................................................................................................................................................2
Flow-Clik Sensor ........................................................................................................................................................2
Flow-Clik Sensor Body ................................................................................................................................................ 2
Flow-Clik Inter face Box ...............................................................................................................................................3
System Status Indicator .............................................................................................................................. ................4
System Overview and Flow-Clik Operation .......................................................................................................................5
Installing the Flow-Clik Sensor Body ...............................................................................................................................9
Installing the Flow-Clik Sensor .............................................................................................................................. ........ 10
Mounting the Flow-Clik Interface Box ............................................................... ............................................................. 11
Wiring the Flow-Clik Interface Box to the Controller ....................................................................................................... 12
Wiring When Using Multiple Sensors ............................................................................................................................14
System Considerations ................................................................................................................................................. 15
Programming the Flow-Clik Interface Box ......................................................................................................................16
Setting the Startup Delay ............................................................... ...............................................................................20
Setting the Interrupt Period ..........................................................................................................................................21
Troubleshooting Guide .............................................................................................................................. .................... 22
Frequently Asked Questions .......................................................................................................................................... 25
Specifications............................................................... ................................................................................................ 27
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INTRODUCTION ...............................................................................................
Shutting down an irrigation system when excess flow occurs provides the benefits of reduced liability, water conservation,
erosion prevention and overall reduction in repair costs. Typical causes for over-flow conditions can stem from problems
due to ruptures in the main or lateral lines, when heads are broken or removed from the system, or when valves do not
shut off automatically.
The Hunter Flow-Clik flow sensor monitors flow to an entire irrigation system or through an individual valve. In the case of
an overflow condition, the Flow-Clik will automatically shut down the irrigation system at the controller. The Flow-Clik acts
as a switch to break the electrical circuit to the solenoid valves as soon as it registers a flow exceeding a calibrated set
limit. This allows the timer to advance as scheduled, but keeps the valve(s) with a “high flow” condition from activating.
As a result, of installing the flow sensor in a system, the user gains the benefit of substantially reducing the amount of
water loss during an occurrence of an over-flow condition.
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FLOW-CLIK COMPONENTS............................................................................
This section will give you a brief overview of some of the
components of the Flow-Clik system. Each item will be
discussed in further detail later, however, this section can
be helpful in getting acquainted with the different options
available.
A. Flow-Clik Sensor
1. Impeller – rotates when flow is occurring
2. O-rings – provides sealing of sensor in sensor body
3. Wires – black and red wires connect sensor to
Flow-Clik Inter face Box
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B. Flow-Clik Sensor Body (FCT Series)
4. Flow-Clik Tee – the Tee
is installed into the irrigation system and houses the
Flow-Clik sensor
5. Plug – used to seal the
body when the sensor is not
installed in the sensor body
6. O-rings – provides sealing of
plug in sensor body
7. Cap – retains plug or sensor
in sensor body
8. Cover – snaps over the top of
the sensor
Note: Flow-Clik sensor bodies
ordered separately.
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Black
Red
To Sensor
To 24 VAC Terminals in Controller
To Sensor Terminals in Controller
Yellow
White
C. Flow-Clik Interface Box
9. Startup Delay Rotary Dial – used to set startup delay
and calibrate sensor
10. Interrupt Period Rotary Dial – used to set interrupt
period and calibrate sensor
11. Restart/Calibrate Button – used to restart system
(when using the “Restart Manually” setting) and calibrate sensor during setup
12. System Status Indicator – provides a visual indication
of the Flow-Clik status
13. Wires – black and red wires to Flow-Clik Sensor
14. Wires – yellow wires to AC power terminals at Control-
ler, white wires to sensor or common terminals at
controller
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FLOW-CLIK COMPONENTS (continued) ......................................................
D. System Status Indicator
The Flow-Clik Interface Box has a System Status indicator
LED that provides information on the current status of the
Flow-Clik system.
GREEN indicates power is applied to the sensor, but no
flow is occurring
FLASHING GREEN indicates an acceptable amount of water
is flowing (below the flow sensor calibrated maximum)
FLASHING RED indicates that overflow is occurring (Water
flow in excess of the calibrated maximum)
RED indicates an unacceptable amount of water was flow-
ing and the system has been shut down. (Water flow
exceeded the calibrated maximum for a time period
longer than the startup delay).
YELLOW indicates that the Flow-Clik is calibrating the
sensor to the system flow.
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SYSTEM OVERVIEW AND FLOW-CLIK OPERATION .................................
Standard 24 Volt Controller
Flow-Clik Interface Box
Flow-Clik Sensor
4 Wires
The Flow-Clik System can be installed simply and easily
to most standard 24 volt irrigation control systems. 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, and the Inter face Box mounted near the controller to control the operation of the irrigation system. The
flow sensor, wired directly to the Interface Box, continually
monitors flow occurring within the system and transmits
this data to the Interface Box. The programmable Flow
Sensor Inter face Box allows the Flow-Clik to function with
all Hunter controllers and makes the Flow-Clik compatible
with most common irrigation controllers on the market. The
controller provides the power for the Interface Box, allowing it to send signals continuously to the controller telling
it to shut down or start up based upon flow conditions.
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SYSTEM OVERVIEW AND FLOW-CLIK OPERATION (continued) ............
ICC Controller
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Flow-Clik Sensor
Master Valve
Back Flow Preventer
Point of Connection
Flow-Clik
Interface
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)
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)
Example of System Operation
In this illustrative example of a small commercial site, the
Flow-Clik sensor is connected to the mainline pipe that
provides water to the system control valves. Because it
is installed immediately down stream 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 can be set to automatically shut off the
system whenever actual flow within the system exceeds the
flow of the system’s highest flow zone. During installation
of the Flow-Clik, a calibration procedure (see Calibrating the Flow-Clik) is used to set the Flow-Clik
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 Interface Box will
signal an overflow condition is occurring.
The figure to the right shows an example of an application
using the Flow-Clik 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 Flow-Clik to this
zone. If flow exceeds 18.9 gpm, a signal will be sent to the
Interface Box which would communicate to the controller
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