Hunter WFSR Wireless Flow Sensor - Receiver User Manual Owner Manual

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WIRELESS-FLOW-SENSOR
WFS
Hunter Wireless-Flow-Sync
Owner’s Manual and Installation Guide
Wireless Flow Sensor for Use with Compatible Hunter Controllers
TABLE OF CONTENTS
INTRODUCTION.................................................................................................................3
WFS COMPONENTS .........................................................................................................4
SYSTEM OVERVIEW AND WFS OPERATION ..................................................................6
INSTALLING THE WFS SENSOR & FCT TEE ....................................................................8
INSTALLING THE WFS SENSOR INTO THE FCT FITTING .............................................12
CONNECTING THE WFS TO THE IRRIGATION SYSTEM ..............................................14
SYSTEM CONSIDERATIONS .............................................................................................17
TROUBLESHOOTING GUIDE ...........................................................................................20
SPECIFICATIONS AND CALIBRATION .............................................................................23
INTRODUCTION
The Hunter WFS allows flow-capable
controllers, such as the Hunter ACC and I-Core,
to monitor actual flow in irrigation systems.
With proper setup at the controller, this allows
the controller to record and report actual flow
in liters or gallons. Flow learning controllers can
also use WFS to learn typical flow for each zone
of irrigation, and monitor during watering for
high and low flow conditions.
WFS equips controllers to respond on
their own to incorrect system performance,
preventing damage to landscape and wasted
water resources.
WFS COMPONENTS
This section will give you a brief overview
of some of the components of the
Wireless-Flow-Sync system.
1.
Impeller: Rotates when flow is occurring
2.
O-rings: Provides sealing of sensor in
sensor body
3.
Wire: Black wire connects to the sensor
transmitter
WFS TEE ASSEMBLY
1.
Flow-Sync Tee: The Tee is installed into the irrigation system and houses the WFS
2.
O-rings: Provides sealing of plug in sensor body
3.
Plug: (replace with WFS at Installation)
4.
Cap: To seal plug to Flow-Sync-Tee
SYSTEM OVERVIEW AND WFS OPERATION
The WFS is typically installed near the point of
connection, in an appropriately-sized FCT Tee.
The WFS transmitter can connect to a host controller up to 500ft/152M away.
WFS sensors operate with an impeller
positioned in the flow through the pipes.
As the impeller turns, pulses are generated to
the controller, which converts them to gallons or
liters, depending on the Units of Measurement
selection in the controller.
WFS Sensor is a reporting device, and does not
respond to flow situations on its own. WFS is
almost always installed in conjunction with a
Master Valve, which can stop flow in a damaged
pipe when high flow conditions are detected.
®
WFS I-CORE WIRING
INSTALLING THE WFS SENSOR AND FCT TEE
The WFS Sensor is designed to install within an
FCT tee fitting, sized for the pipe in which it will
be installed.
For international applications, optional slip-BSP
adapters are available separately for sizes up to
75 mm.
HFS FCT Tee Fitting Models (All tees are glue/slip type fittings)
BSP Adapters
Model
FCT 100
FCT 150
FCT 158
FCT 200
FCT 208
FCT 300
FCT 308
FCT 400
Diameter (mm)
25 mm
37 mm
50 mm
75 mm
Material
Schedule 40 (white)
Schedule 40 (white)
Schedule 80 (gray)
Schedule 40 (white)
Schedule 80 (gray)
Schedule 40 (white)
Schedule 80 (gray)
Schedule 40 (white)
Diameter (US)
1"
1.5"
1.5"
2"
2"
3"
3"
4"
Diameter (mm)
25 mm
37 mm
37 mm
50 mm
50 mm
75 mm
75 mm
100 mm
Model
795700
795800
241400
477800
INSTALLATION
Install the FCT tee fitting first, then install the
WFS Sensor into the fitting.
Observe the following general rules when choosing
the sensor location and preparing to install:
• Flush system with plug in place before
installing the WFS sensor, to prevent damage
to the impeller.
• Always install WFS together with a Master
Valve, to provide overflow protection.
• Install the WFS and Master Valve as
near the point of connection to the water
supply as possible.
• WFS requires a section of straight
pipe on either side of the tee fitting to provide
accurate measurement of flow. Tees, ells,
and other fittings cause turbulence which
affects accuracy.
• There must be a length of straight pipe at least
10 times the diameter of the pipe upstream
from the WFS (toward the water supply).
• There must be a length of straight pipe at least
5 times the diameter of the pipe in the downstream direction (toward the sprinklers).
• Example: FCT-200 is installed in a 2”/50 mm
diameter pipe. The tee should have 20”/50
cm of straight pipe upstream, and 10”/25 cm
straight pipe downstream.
The FCT tee fitting is designed for glue (“slip”)
connection. Use approved PVC solvent-welding
glue to install either threaded fittings, or directly
into the irrigation pipe if desired.
• Install the WFS and FCT assembly in a sturdy
irrigation valve box.
Metric thread adapters are available and are
listed in this manual on page 8.
• WFS has an impeller which will turn in the flow
of water. If the water source is not a public
water supply, add a filter upstream from the
Master Valve and WFS to protect the impeller
from rocks or stones, which may damage the
impeller.
10
Avoid excess glue when attaching
fittings. Uncured blobs of excess glue
on the fitting’s interior can interfere
with paddlewheel operation.
EXAMPLE OF INSTALL
*NOTE: Not to scale.
11
INSTALLING THE WFS SENSOR INTO THE FCT FITTING
The FCT tee fitting comes with a plug that allows
for installation of the FCT into the irrigation
system prior to installing the Sensor. This allows
the FCT tee to be installed separately from the
sensor and prevents damage to the sensor during
installation of the body.
To install the sensor into the body:
1. Turn the system pressure off.
2. Unscrew the cap from the top of the FCT (figure 1).
3. Use pliers or a screwdriver and carefully pry the
plug from the FCT tee.
NOTE: Do not attempt to remove the
sensor plug or sensor while the system
is under pressure
12
4. Insert the sensor into the FCT. The sensor has a
flat side that engages with a flat on the inside of
the sensor body (figure 2).
INSTALLING THE WFS SENSOR INTO THE FCT FITTING
5. Hand tighten the WFS sensor cap. (figure 3).
NOTE: Never glue the HFS sensor
into the fitting! The threaded cap is
designed to seal under pressure
Figure 11
Figure
Figure 22
Figure
Figure 3
13
CONNECTING THE WFS TO THE IRRIGATION SYSTEM
WARNING! WFS is only designed for low-voltage
connection to approved irrigation controller flow
terminals. Do not install in high-voltage 110V or
230V circuits.
WFS has one wire lead which leads to the
transmitter. The transmitter may be placed up to
500ft/152m from the controller.
Connecting the Receiver
Pro-C
Wire the leads from the receiver to the SEN
terminals.
14
®
ACC & I-CORE INSTALLATION
ACC Controller
I-Core Controller
Use terminals S1 or S2
15
Proper irrigation system design and operation
assures optimum performance of the WFS in
monitoring for potential high flow conditions.
WFS is primarily designed to shut off the irrigation system in the event of a catastrophic system
failure such as a main line or lateral line break.
However, depending upon the design of the
16
irrigation system, the WFS can offer increased
protection when components such as sprays or
rotors are damaged or removed due to vandalism. The following may be helpful in making your
WFS operate at its optimum level.
SYSTEM CONSIDERATIONS
Working With WFS
Hunter flow-capable controllers are designed
to measure and record actual flow, shut off
irrigation when a high flow condition occurs, and
identify which stations caused the condition.
The controller’s Learn mode samples each station
individually, and learns a typical flow for each
station in the system. During actual irrigation,
the flow can be observed at the controller. Actual
flows are recorded and stored in the controller
facepack. The ACC or I-Core controller will also
compare actual flows to the estimated total of all
active stations, to see if there is an unacceptable
difference, indicating a leak or break.
Consult the controller documentation closely for
setup and operation of flow monitoring. It is
vital to set the correct pipe size, so that the
controller interprets the flow data correctly. It is
also important to set adequate overage amounts
(minimum is 15% over normal) and delays
(default is one minute) to prevent false alarms.
17
Mainline Pressure Fluctuation
Some water sources may have varying pressure
depending upon the demand for water upstream
of the point of connection. During times of heavy
demand, system pressure through the mainline
may drop.
This is why the flow limit percentage and delay
periods (set in the controller) are important,
as false alarms lead to a lack of confidence in
the system.
18
Additionally, excess air in irrigation piping causes
the WFS impeller to spin freely during
station startup, which may cause temporarily
high readings. This problem may be reduced by
installing check valves in the system, and by
setting the alarm delay values to prevent
premature alarms.
Proper System Maintenance and Operation
It is important that your irrigation system
be maintained and is functioning properly for
optimum performance. Check your irrigation
system for any broken components or leaks
also, making sure that all sprinklers are operating
within the pressure ranges recommended by
the manufacturer.
19
Hunter controllers equipped with flow terminals
will have approximately 20 VDC present on the
flow sensor terminals, with no flow input.
20
When flow begins, the voltage will pulse. On a
standard voltmeter, the voltage will appear to
drop, or pulsate. On voltmeters equipped with a
frequency counter, the pulse frequency can be
measured in Hz.
TROUBLE-SHOOTING GUIDE
Problem
Cause
Solution
WFS not reading
Water shut off
Verify that no isolation valves are closed, and
that the water source is on.
Controller not configured
Check controller flow sensor setup. Enter
sensor size (and location, for sensor decoders)
and other sensor information as required.
Damaged sensor- Impeller damage
(debris in water) or WFS
electronics damage (lightning)
Replace sensor.
21
TROUBLESHOOTING
Problem
Cause
Solution
WFS not reading correctly
Controller configured incorrectly
Set correct flow sensor size and
type at controller.
Turbulent flow at sensor
Insure that straight pipe is on either
side of flow meter.
Station settings too sensitive
Increase overflow percentage (and
underflow if available).
Wide range of flows for a single
station
Increase overflow and underflow
percentages, and delay interval.
Frequent false alarms
22
SPECIFICATIONS
Flow Range
Operating Specifications
Temperature
0 to 140ºF/60ºC
Pressures
up to 200 psi/13.7 bar
Humidity
up to 100%
Flow-Sync
Sensor
Diameter
1"
1½"
2"
3"
4"
Operating Range (Gpm)
Minimum*
Suggested Maximum**
10
28
34
17
35
55
120
195
*	Minimum recommended flow for the highest flow zone for
your system
**	Good design practice dictates the maximum flow not to
exceed 5ft/sec. Suggested maximum flow is based upon
Class 200 IPS plastic pipe
23
FCT TEE FITTING SPECS.
Maximum Distance Between WFS Transmitter and Receiver 500ft/152m
Dimensions
FCT Tee Fitting
Height
Width
Length
FCT 100
FCT 150
FCT 158
FCT 200
FCT 208
FCT 300
FCT 308
FCT 400
4.8″/12 cm
5.4″/14 cm
5.4″/14 cm
6″/15 cm
6″/15 cm
7″/18 cm
7″/18 cm
8″/20 cm
2.3"/6 cm
2.3"/6 cm
2.3"/6 cm
2.7"/7 cm
2.7"/7 cm
4"/10 cm
4.2"/11 cm
5"/13 cm
4.5"/11 cm
4.6"/12 cm
5.1"/13 cm
4.7"/14 cm
5.4"/14 cm
6.2"/16 cm
6.4"/16 cm
6.2"/16 cm
24
Straight Pipe
upstream (Ø x 10)
10"/25 cm
15"/38 cm
Straight Pipe
downstream (Ø x 5)
5"/13 cm
8"/20 cm
20"/50 cm
10"/25 cm
30"/76 cm
15"/38 cm
40"/1 m
20"/50 cm
WFS Calibration Factors
Hunter controllers allow selection of the correct
pipe size by FCT model number. No further
calibration is needed.
If “Other” is selected, K-factor and Offset
information may be entered directly. Following
are K-factor and Offset values for best results
with each available FCT model.
Flow Sensor Values
Hunter Flow Sensor
HFSFCT100
HFSFCT150
HFSFCT158
HFSFCT200
HFSFCT208
HFSFCT300
HFSFCT308
HFSFCT400
K-Factor
0.44
1.13
0.92
2.13
1.72
4.61
5.87
8.77
Offset
0.39
0.00
1.22
0.23
1.70
0.18
1.07
0.48
25
RATINGS
WFS-R
ࣅ For connection to Hunter controllers only
ࣅ 24 V~ 50/60 Hz 10 mA 0.02W
ࣅ IP 43
ࣅ Ta 50 C
WFS-T
ࣅ Batteries: 3 x 1.5 V AA or Hunter lithium pack WFSLITHBATT
ࣅ IP 67
ࣅ Ta 50 C
26
FCC Notice:
This device complies with part 15 of the FCC Rules. (1) this device may not cause interference, and (2) this device must accept any interference,
including interference that may cause undesired operation of the device..
This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are
designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate
radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications.
However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or
television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or
more of the following measures:
• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment and receiver.
• Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
• Consult the dealer or an experienced radio/TV technician for help.
The user is cautioned that changes and modifications made to the equipment without the approval of the manufacturer could void the user’s authority to
operate this equipment.
Industry Canada Notice:
This device complies with Industry Canada license-exempt RSS standard(s). Operation is subject to the following two conditions: (1) this device may
not cause interference, and (2) this device must accept any interference, including interference that may cause undesired operation of the device.
Le présent appareil est conforme aux CNR d'Industrie Canada applicables aux appareils radio exempts de licence. L'exploitation est autorisée aux
deux conditions suivantes: (1) l'appareil ne doit pas produire de brouillage, et (2) l'utilisateur de l'appareil doit accepter tout brouillage
radioélectrique subi, même si le brouillage est susceptible d'en compromettre le fonctionnement.
RESIDENTIAL & COMMERCIAL | Built on Innovation®
1940 Diamond Street | San Marcos, California 92078 USA
Learn more. Visit hunterindustries.com
© 2016 Hunter Industries Incorporated
LIT-699-OM-WFS-US A 6/16

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