Hunter HC Flow Meter User manual

HC Flow Meter
HYDRAWISE-READY QUICK START GUIDE

2
HC Support
Thank you for purchasing the Hunter HC Flow Meter. In this Quick Start Guide, you will learn how to install and
congure your ow meter. For support of Hydrawise™ cloud soware or help with your Hydrawise account,
visit hunter.direct/hchelp. For specication information, refer to hunter.direct/hcow.
Table of Contents
3Box Contents
4HC Flow Meters
5Planning
7Installing
9Conguring
10 Troubleshooting

3
Box Contents
Note: This product is intended for use with
professional-grade materials. It must be
installed by a licensed irrigation contractor or
licensed electrician.
ITEM QUANTITY
Flow meter 1
Gaskets 2
Adapter ttings 2
*Shielded direct-burial cable must be used for installation.

4
The ow meter consists of two parts:
1. Flow meter body: The ow meter body contains an analog dial for manual readings
as follows. Your ow meter will have 3 wires protruding from the body. The wires
need to be connected to the sensor inputs on the controller for readings in the
soware application. In all models, only 2 wires (blue and white) are used.
2. Adapter: Each ow meter has an adapter to allow connection to your irrigation system.
Note: The ow meter displays U.S. gallons.
If so desired, you can change the unit of
measure in the app to liters.
DIAL MARKING MEASUREMENT UNIT
X0.01 0.1 gallon
X1 1 gallon
X10 10 gallons
X100 100 gallons
HC Flow Meters
U.S.GALLONS
1"
100º F
0
X10
X1
X0.1
X100
00 8 1
2
01
3
4
5
6
7
8
9
2
01
3
4
5
6
7
8
9
2
01
3
4
5
6
7
8
9
2
01
3
4
5
6
7
8
9

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Planning is an important step in the successful installation of your Hunter ow meter and the reliable
operation of your irrigation system.
3. Flow meter location: Flow meters are installed between the master valve and zone valves. To avoid false alerts,
there should be no water taps or other uncontrolled water use on the downstream side of the ow meter. If all
solenoids connected to the controller are not grouped together, it may be necessary to install more than one
ow meter. For proper installation and optimal water ow, use the chart below when determining pipe length.
The pipe bringing water into the ow meter needs to be 10 times longer than the width of the pipe. The pipe
carrying water away from the meter needs to be 5 times the width of the pipe.
PIPE 10X-BEFORE 5X-AFTER
3/4" 7⁄" 3⁄"
1" 10" 5"
1⁄" 15" 7⁄"
2" 20" 10"
Planning
Note: Measurements in the chart are for
minimum pipe length.

6
Flow Meter Cable Length Chart
4. Cable (shielded direct-burial cable must be used): Two-wire cable is required. The cable gauge is determined
by the total length of cable between the controller and the ow meter. The cable should consist of 2 dedicated
wires and must not be in the same conduit or cable bunch as the solenoid wires. Do not share the common wire
of the solenoids with the common of the sensors.
Note: Shielded direct-burial cable is commonly
available. Manufacturers include Paige Electric and
Regency Wire.
WIRE SIZE MAX LENGTH
Gauge Feet
20 240
18 1,000
Planning

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The following instructions assume you have already installed your Hydrawise controller.
1. Flow meter body: The ow meter has a marking on the body indicating the direction of water ow. Installation
of the ow meter must be in the correct orientation with water owing in the direction of the arrow on the ow
meter body. All HC Flow Meters must be installed horizontally with the dial facing upward.
HC FLOW METER
MINIMUM
of 5 times
pipe diameter
MINIMUM
of 10 times
pipe diameter
Installing
!
CONNECT
wires to Hydrawise
controller
Watertight
connections
Flow direction
to valves
!
!

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24VAC
24VAC
SENSOR 1
SENSOR 2
COMMON
SEN C
SEN 2
SEN 1
REM
24VAC
24VAC
GND
HC HCC
SEN
SEN
AC2
AC1
GND
24 VAC
24 VAC
GND
SEN-1
SEN COM
SEN-2
PRO-C® PRO-HC
2. Connect ow meter wire: Two-wire cable is required. The cable required to connect your ow meter must be
dedicated to the ow meter and not shared with the common wire of the valves or other sensors. The cable
gauge is determined by the total length of cable between the controller and the ow meter. The general rule is
that 0.5 mm (20GA) wire is good for a run of up to 240'. Connect the wires to your Hydrawise controller.
WIRE COLOR SENSOR TERMINAL BLOCK
White Common
Blue Sen 1 or Sen 2
Red Not used: Wires should be capped
with waterproof splice
Installing
Note: All wire connections should be done using
waterproof connectors, such as 3M 316IR or 3M DBY.
* Shield and bare wire should be connected to the
controller ground terminal if available.

9
Use your Hydrawise account to complete your ow meter conguration.
1. Log in to your account: Enter your login information.
2. Create a ow sensor: It is important that you select the correct ow meter when conguring your Hydrawise
app. Choosing the wrong model may cause the Hydrawise controller to create false alerts in the soware.
3. Assign zones to the ow sensor: Refer to hunter.direct/hchelp for app/soware setup information.
HC FLOW METER SELECTION CHART
METER SIZE DESCRIPTION U.S. GALLON PULSE RATE
⁄" ⁄" ow meter 1 pulse per 0.1 gallon
1 1" ow meter 1 pulse per 1 gallon
1⁄" 1⁄ " ow meter 1 pulse per 1 gallon
2" 2" ow meter 1 pulse per 1 gallon
Conguring

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Need more helpful information on your product? Find tips on installation, controller programming, and more.
Troubleshooting
hunter.direct/winterization
hydrawise.com/owmeterinstall
hunter.direct/hchelp