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ET SYSTEM SMARTPORT
User Manual
36 pgs1.37 Mb0

Hunter ET SYSTEM SMARTPORT User Manual

ET System
Evapotranspiration Sensor and Module for Hunter Controllers
®
with SmartPort
Owner’s Manual and Programming Instructions
TABLE OF CONTENTS .............................................................................................................................
Additional Tools and Materials ........................................4
Choose the Location .......................................................4
ET Sensor Wiring ............................................................5
Prevailing Wind Compensation .......................................5
Metal Fence Pole .............................................................6
Wooden Post ..................................................................6
Wall or Eave ....................................................................6
ET Module Wiring ...........................................................7
SRC or SRC Plus Controller Connection .........................8
Pro-C Controller Connection ...........................................8
ICC Controller Connection ..............................................8
Remote Control Connection ............................................9
ACC Controller Connection .............................................9
Test ...............................................................................11
General Operating Tips .................................................12
Setup Overview .............................................................13
Global % Setting ...........................................................13
Initial Soil Deficit ...........................................................13
International Users – Metric Setting .............................13
Controller Type .............................................................14
Prepare the Controller ...................................................14
Set Time/Date ...............................................................15
Set Daylight Savings .....................................................16
Plant Type .....................................................................16
Maturity ........................................................................17
Type ..............................................................................17
Variety...........................................................................17
Site Info ........................................................................19
Slope ............................................................................19
Soil ...............................................................................19
Sun ...............................................................................20
Sprinkler Type ...............................................................20
Precip ...........................................................................20
Water Days ...................................................................21
Daily Start Time ............................................................22
WiltGard™ .....................................................................22
Rain Setting ..................................................................24
ET Setup .......................................................................25
Automatic .....................................................................26
Watering History ...........................................................27
View Sensor Date ..........................................................29
Reset ............................................................................29
Troubleshooting ............................................................30
INTrOduCTION .......................................................................................................................................
The Hunter ET System allows an irrigation program to be created automatically, based on local climate conditions. The program is then operated via a compatible irrigation controller’s Program A (except ACC controllers, see page 14) and runs automatically, on water days and at start times set by the system operator. Compatible controllers are Hunter Models SRC/SRC Plus, Pro-C, ICC, and ACC with SmartPort
ET System uses sensors to determine the local “evapotranspiration” (ET) rate of turf and plants. This is a formula which calculates how much wa­ter the plants have lost, or consumed, due to local atmospheric conditions. Each ET System can be customized by station (or “zone”) for specific plant, soil, and sprinkler types.
The result is a new, water-efficient irrigation program every water day, based on local weather conditions.
Once installed, the ET-controlled zones are programmed from the ET Module, rather than the controller itself. The ET Module will display the new program data for the climate-based irrigation.
The ET System allows manual station starts from the controller, and will also permit connection of an ICR or SRR remote control receiver.
This product is intended for turf and landscaping applications only, not intended for agricultural or scientific use.
Use the ET System Worksheet. One is included with each ET System, and this can also be downloaded free of charge from the Hunter Industries web site (www.hunterindustries.com at the ET System product page). The ET System Worksheet will help you organize and record your station settings. This will also help to determine and track any adjustments you may make to the watering settings. If you need Technical Support, the Hunter technician will also need this information.
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technology.
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C.
A.
D.
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B.
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ET SySTEm COmpONENTS ...................................................................................................................
ET System has two major components, and one optional accessory. All ET System components are low voltage (24 VAC or less).
A. ET Sensor
Sensor platform wired to the ET Module, which senses local conditions. For external mounting up to 100 ft/33m from the Mod­ule. Pole adapters included (requires other hardware for various mounting options).
B. ET Module
Electronic control and user interface for the ET System.
C. ET Wind (Optional)
Optional anemometer which senses wind speed. Provides more sensitive ET measurement, especially in arid climates.
D. ET/ACC Adapter (Included)
For connection with ACC series controllers. The adapter is not required for use with Hunter ICC, Pro-C, and SRC family controllers.
E. ET Wire
100' (33mm) two-conductor direct burial for connection to ET Sensor
SySTEm OvErvIEw ANd ET SySTEm OpErATION .........................................................................
The ET System can be simply and easily installed with any Hunter SmartPort®-equipped irrigation controller. The System consists of the ET Sensor, installed in an area typical of the irrigated plants, and the ET Module interface enclosure, installed next to the irrigation control­ler.
The ET Sensor measures solar radiation, air temperature, and relative humidity, and calculates the daily Evapotranspiration factor (ET) for the irrigation zones. This represents the amount of water lost by the plants to local climatic conditions, which needs to be replaced by irrigation.
The optional ET Wind sensor will add evapotranspiration loss due to wind, along with automatic wind shutdown capability.
The ET Sensor also includes a Rain Gauge, which measures rainfall in either hundredths of an inch, or in millimeters.
Rainfall will stop automatic ET irrigation that may be in progress. A percentage of the rainfall itself will be added to the soil and subtracted automatically from the automatic irrigation, to prevent waste.
The ET Module receives the data from the ET Sensor, and applies it to the individual zones of irrigation. The ET Module has settings to customize each zone’s plant, soil, and sprinkler types, so that ET data can be applied proportionately for each unique irrigation requirement.
The ET Module is wired into the controller’s SmartPort and creates irrigation run times to only replace the amount of water the plants have lost.
ET Module works by running stations through the local controller. It will clear Program A in the local controller (except in ACC controllers), and it will then run the ET run times with manual commands. Program A is no longer available for "traditional" irrigation scheduling.
How ET System Decides to Water: Using the local ET Sensor readings and the ET Module’s database of station information, ET System pre­dicts the Management Allowable Depletion of water (MAD) available to each plant type.
Each day, ET System looks at the current depletion level, ET rate, plant type (crop coefficient and root zone), and whether the next day is an allowable watering day. The decision to start a specific station is also based upon a minimum irrigation amount, to prevent shallow watering. Deeper watering events encourage healthy root systems and plant growth. The calculation for minimum sprinkler runtime is based upon the soil type and capacity, where typically the MAD is above 30-50%. For the worst-case scenario, sandy soil with spray heads, the minimum runtime would then be approximately 7 minutes.
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INSTALLINg ThE ET SENSOr................................................................................................................
ET Sensor
Additional Tools and Materials
The ET system is supplied with 100’/33m of wire for connection of the ET Sensor. This wire has been specially tested for ET installations and is approved to 100’/33m max.
If any other wire is to be used, Hunter recommends 2 x 18 AWG/1mm wire rated for direct burial, color-coded or other wise marked to identify the separate conductors. The ET signal is a low-voltage DC and the conductors must be distinguished from each other to maintain polarity. Either stranded or solid wire is acceptable (stranded is more flexible and resists breakage). The ET signal is rated to 100’/33m max and is not tested or approved to any greater distance.
Choose the Location
ET Sensor should be placed in an area representative of the plants it is designed to irrigate.
The ET Sensor should be post or pole-mounted in a full-sun turf
grass area, approximately 6 ft./2m above the grass, with approxi­mately 6 ft./2m of turf grass surrounding it on all sides. The ET
Sensor weighs approximately 6 lbs./2.5kg.
This may not always be practical, so choose the actual location according to the following guidelines:
a) ET Sensor must be mounted within 100 ft./33m of the ET Module
and the controller.
b) Avoid positioning ET Sensor over large areas of concrete, asphalt,
roof tile, or shingles. These surfaces will cause the sensors to read much higher levels of ET than plants.
c) Choose a sunny location between 6 and 20 feet (2 and 7m) above
the ground.
d) Do not mount the sensor where it will be hit by sprinkler spray or
other irrigation!
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15 ft/5m Clearance From Any Structure
ICC Controller
ET Module
ET Sensor Wire (Included with ET System) 100 ft./30m, maximum
e) Do not mount the ET Sensor under a ledge or overhang, and avoid
placing it directly under tree canopies. ET Sensor needs un-
blocked sun and rain to function correctly!
f) Do not mount the ET Sensor within falling distance of power
lines! High voltage shocks can injure and kill.
6 ft/2m
Above
Turf,
Minimum
g) Position the ET Sensor where it can be reached for occasional ser-
vice. The rain gauge should be checked and cleaned once a month during the warmer months, to ensure that it is free of debris.
h) Avoid mounting sensor near any high intensity light, heat or infra-
red sources as this may add excess ET amounts over time.
The ET Sensor is designed to adapt to steel fence poles (mounting adapters included, requires 2 x 2"/50mm
2
U-bolts), 4x4"/100mm2 (or
larger) posts, or eaves or walls.
Metal poles or weather-treated wooden posts are preferred, since ET measurements will be somewhat less accurate if the sensor is wall or eave-mounted.
ET Sensor Wiring
Locate the screw terminal strip. Connect the two long conductors (green and black) to the appropriately labeled terminals.
If an ET Wind Sensor is to be installed, this is also the time to con­nect the wires.
Prevailing Wind Compensation
If ET Wind will not be connected, a factor for average prevailing
Green and Black Wires
(ET Module)
Before mounting the ET Sensor, connect the wires to the terminal strip. This operation is much easier on the ground, prior to mounting the sensor.
Locate the wiring compartment cover on the bottom of the ET Sensor. This is a trap door, secured with 2 screws. Remove the wiring com-
White Wire Blue Wire
(ET Wind only)
partment door screws and set in a safe place, and remove the wiring compartment door.
Average Wind Factor Settings. Switch #4 is not used, and position does not matter.
Avg. Wind 1mph 2mph 3mph 4mph 5mph 6mph 7mph
DIP setting 1.6kph 3.2kph 4.8kph 6.4kph 8kph 9.6kph 11.2kph
SW 1 On Off On Off Off Off On
SW 2 Off On On Off Off On On
SW 3 Off Off Off On Off On On
ET Wind
ON
OFF
1 2 3 4
1 2 3 4
1 2 3 4
1 2 3 4
1 2 3 4
1 2 3 4
1 2 3 4
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winds in the installation area can be entered while the wiring door is removed. The factory default setting is 5 mph (8 kph). With the wiring cover removed, a DIP switch is visible allowing other prevailing average wind speeds to be set, according to the Table 1 (note that Switch 4 is not used).
If the optional ET Wind sensor is installed, mount the ET Wind sensor according to its instructions, and connect the blue and white conductors from the ET Sensor to the appropriately labeled termi­nals and secure their screws. Do not reverse the blue and white wire connections from ET Wind… connect as shown!
Replace the wiring compartment door and secure with the screws.
Metal Fence Pole
Steel adapters are supplied for most popular sizes of galvanized steel fence posts, 2" diameter and smaller.
Additional materials (not supplied): 2 x 2" galva­nized or stainless steel U-bolts, 3" long or greater
4 nuts and washers for U-bolts
Bag of concrete
If pole is new construction for specific purpose of mounting ET Sensor, dig approximately 12" x 12" hole and fill with approximately one 90 lb. bag of concrete, or place as required by local code. Insert pole, check with level and straighten, and brace until concrete is firmly set.
Insert U-bolts around pole through steel pole adaptors, and through mating holes in ET Sensor back plane. Add washers, thread nuts onto U-bolt, and tighten. Do not overtighten.
Route ET Sensor wire to ground surface or burial trench, and run back to ET Module.
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External mounting in outdoor low voltage conduit (for the above-ground exposed portion of the wire run) is recommended for protection from the ele­ments.
Wooden Post
Additional materials (not supplied): 4x4"/100mm
pressure-treated, outdoor, direct-burial grade 4x4"/100mm
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or larger post.
100mm x 6mm dia. x 3,8cm long galvanized or stainless steel lag bolts and washers
Nut driver for lag bolts
Bag of concrete
Dig approximately 12" x 12"/30cm x 30cm hole (or greater, as
local code dictates) and fill with approximately one bag of concrete. Insert post, check with level and straighten, and brace until concrete is firmly set.
Level, mark, and drill pilot holes for 4 lag screws through back of ET Sensor holes. Insert lag bolts and washers through mounting hole in backplane of ET Sensor and tighten. Do not overtighten.
Route ET Sensor wire to ground surface or burial trench, and run back to ET Module.
External mounting in outdoor low voltage conduit (for the above­ground exposed portion of the wire run) is recommended for protec­tion from the elements.
Wall or Eave
Additional materials (not supplied): 4 x ¼" dia. x 1.5" (100mm x 6mm x 40mm) long galvanized or stainless steel lag bolts and washers.
Nut driver for lag bolts.
Level, mark, and drill pilot holes for 4 lag screws through back of ET Sensor holes. Insert lag bolts and washers through mounting hole in backplane of ET Sensor and tighten. Do not overtighten.
Route ET Sensor wire to ground surface or burial trench, and run back
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Orange, or Blue-And-White-Striped
in some versions
Controller Connections
(ET System Only)
Blue: REM
White: AC2
Red: AC1
To ET Sensor
Green
Black
to ET Module. External mounting in outdoor low voltage conduit (for the above-ground exposed portion of the wire run) is recommended for protection from the elements.
In all cases, ensure that any exposed wire loop from the ET Sensor to
INSTALLINg ThE ET mOduLE ..............................................................................................................
immediately next (6 ft./2m) to the Hunter SmartPort-equipped irriga­tion controller (including models SRC, Pro-C, ICC, and ACC). The ET Module is low-voltage only and does not require a separate high­voltage power connection.
The ET Module is connected to the ET Sensor via the two conductor sheathed wires supplied with the ET System (up to 100 ft./30m away), and then wired into the SmartPort wiring terminals inside the control­ler.
To wall mount the ET Module, choose a location within 6 ft./2m of the controller. Avoid direct sunlight when possible (to enhance visibility of the LCD display). Verify that the wallboard construction is of sufficient strength to securely mount the small, lightweight enclosure.
The 6-conductor umbilical cord extends through the shielded hole in the bottom of the enclosure. Verify that it remains clear and accessible when securing the enclosure to the wall.
Use two anchors or self-tapping screws of minimum #12 (5.5mm) diameter to secure the ET Module enclosure to the wall.
Turn off AC power to the irrigation controller, before connecting the ET Module to the controller! The ET System receives its power from
the SmartPort connection to the Hunter controller. Do not connect the ET Module to the controller while AC power is turned on.
ET Module Wiring
The 6-conductor umbilical cord from the ET Module is color-coded to simplify connections.
Do NOT connect 110/230V high-voltage power to the ET System!
Make all wiring connections with approved butt splices or wire nuts for the ET wire, and place the splices in a suitable junction box. Con­duit is recommended for both indoor and outdoor installations.
the wire routing conduit does not swing freely in the wind, as this will shorten its life.
The ET Module is designed to be wall-mounted, either in or outdoor,
Install CR2032 backup battery for date/time backup in event of power failure (battery included with mounting hardware). Batter y must be installed with + visible, facing toward the installer.
If connecting the ET System to an ACC series controller, see ACC section for special installation instructions.
ICC, Pro-C, and SRC controllers (ACC special instructions in next section): Connect the supplied wires from the ET Module to the ET
Install CR2032 lithium batter y (included)
under cover for time/date backup.
Install CR2032 battery
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AC AC RRSCMV 123456
9 V Battery
RESET
BlueRed
White
BlueRed
White
Blue
Red
White
Sensor with appropriately sized butt splices or wire nuts. These two wires may be extended up to 100 ft./30m to reach the sensor.
SRC or SRC Plus Controller Connection
If no wireless remote control receiver will be installed, the Orange wire (or Blue-And­White-Striped wire in some versions) from the ET Module is not used.
Connect the red wire from the ET Module to the bottom left of the two terminals on the power module labeled “24VAC” (or just AC, on older units).
Connect the white wire from the ET Module to the second to the right of the two terminals on the power module labeled “24VAC” (or just AC, on older units)..
Connect the blue wire from the ET Module to the terminal in the controller labeled “R”.
If no wireless remote control receiver will be installed, the blue­and-white striped wire from the ET Module is not used.
Pro-C Controller Connection
Connect the red wire from the ET Module to the terminal in the controller labeled AC1.
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Connect the white wire from the ET Module to the terminal in the controller labeled AC2.
Connect the blue wire from the ET Module to the terminal in the con­troller labeled REM.
ICC Controller Connection
Connect the red wire from the ET Module to the bottommost of the terminals on the power module labeled “AC”.
Connect the white wire from the ET Module to the upper of the two terminals on the power module labeled “AC”.
Connect the blue wire from the ET Module to the terminal in the con­troller labeled REM.
SmartPort
for ICR Receiver
Blue: REM
Connect orange
(or blue-and-white-striped)
wire from module,
to blue wire from SmartPort
White: AC2
Red: AC1
To ET Sensor
Green
Black
Controller Connections
(SmartPort with ET and ICR)
Remote Control Connection
If a remote control (either Hunter ICR or SRR) receiver is to be con­nected, connect the Orange wire (or Blue-And-White-Striped wire in some versions) from the ET Module, to the blue ICR/SRR receiver wire. The SmartPort wiring that connects ET Module to the controller will complete the connection for the remote receiver.
ACC Controller Connection
The ET System is shipped with a special adapter for use with the ACC series of controllers.
The ACC controllers have an integrated SmartPort for remote receivers (such as the Hunter ICR remote control) on the side of the cabinet in the metal cabinet configurations, and inside the pedestal in the plastic pedestal configurations.
All ET System connections are made within the enclosed ET/ACC adapter, which is then plugged into the SmartPort. The adapter allows both ICR remote receivers and the ET System to be connected to the ACC controller at the same time.
When installing ET System with an ACC controller, the ET Sensor con­nections are also made at the terminal strip inside the adapter, NOT to the ET Module cable directly. This is only true for ACC connections.
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