Nelson Irrigation Corporation — 848 Airport Road, Walla Walla, WA 99362 USA
Tel: 509 525 7660 — Fax: 509 525 7907 — www.nelsonirrigation.com — [email protected]
Nelson Irrigation Corporation — 848 Airport Road, Walla Walla, WA 99362 USA
Tel: 509 525 7660 — Fax: 509 525 7907 — www.nelsonirrigation.com — [email protected]
Nelson Irrigation Corporation — 848 Airport Road, Walla Walla, WA 99362 USA
Tel: 509 525 7660 — Fax: 509 525 7907 — www.nelsonirrigation.com — [email protected]
Controller
USERS GUIDE
Features
This battery operated controller irrigates in cycles that will repeat during a window of time
according to a program setup by the user. The wet and off cycles can be very frequent
(over 100 per day) if wanted. It is very useful for evaporative cooling of fruit and dust
suppression when irrigated for short wet/dry interval times. Cycle irrigation is also useful for
normal sequential rotation of irrigation flow between field zones.
Operates in cycles during programmed window
Battery powered; no need for electrical hookup
Easy installation
Waterproof and weather resistant
Easy programming
Parts Identification
1. Top Cover
2. Controller Display
3. Controller
4. Program keys 5. Solenoid
Getting Started
Basic Controller Functions
This section gives a brief description of the Controller program key buttons. This figure
shows the layout and the function is described below.
Quick presses of the
MODE
button turn the controller off, or on. Longer presses of
the
MODE
button put the controller in programming mode.
Press the
SET
button to set a function and proceed.
Use these buttons to increase and decrease schedule functions.
Installation
The controller and solenoid will normally be installed on the valve at the factory.
Occasionally the latching solenoid valve opens in transit. To ensure that the valve is closed
before you turn on water pressure, first make sure that the controller is not set to OFF (If
it is set to OFF, press briefly on the
MODE
button to turn it on.) Then press + and
SET
simultaneously to open, and press - and
SET
simultaneously to close. You are now ready
to program the controller.
Caution note: Unique to latch solenoids is the potential
to fail in either OFF or ON! Before installation make certain that the irrigation system has the
proper pressure relief and some protection against damage if solenoid failure occurs.
MODE
SET
3W
N.O.
12 VDC
LATCH
1
2
5
3
4
MODE
SET
Fig. 1
Fig. 1a
MODE
SET
Controller on 2” 800 Series valve
Programming the Window (continued)
Setting the OFF Time (Interval)
The following screen shown in Fig 8 will appear:
On this screen the numbers refer to the interval between irrigations within the cycle
(measured in minutes and hours). ‘OFF’ flashes on the screen, alternating with the
numbers.
1. Use the +
or
- buttons to adjust the minutes
2. Press SET to continue
3. Use the +
or
- buttons to adjust the hours.
4. Press SET to continue.
Setting the Days
The following screen shown in Fig 9 will appear:
You must select the days you wish the irrigation ‘WINDOW’ to
operate. Each day selected will operate with the irrigation
schedule you setup in Figures 6-8.
1. Press SET to reach the day you wish to irrigate. The number
(corresponding to the day of the week) will flash.
2. Press + to select that day (the square which appears indicates day is selected).
3. Press - to deselect a day (the square will disappear).
4. Press SET until all days are programed as desired. Current day continues flashing.
5. Press SET to complete programming.
Example summary: The program has been set for a 10 hour Window (8:00 to 18:00)
having ‘On’ time duration of 1 hour 30 minutes 9 seconds and ‘OFF’ time interval of 3
hours 30 minutes. This cycle will repeat twice during the 10 hour Window each day
that is selected.
Note:
The Window End time takes control over the schedule and turns off the valve even if the
cycle is not complete.
W
arranty and Disclaimer: Nelson controllers are warranted for one year from date of original sale to be free of
defective materials and workmanship when used within the working specifications for which the product was designed
and under normal use and service. The manufacturer assumes no responsibility for installation, removal or unauthorized
repair. The manufacturer’s liability under this warranty is limited solely to replacement or repair of defective parts, and
the manufacturer will not be liable for any crop or other consequential damages resulting from any defects in design or
breach of warranty. This warranty is expressly in lieu of all other warranties, express or implied, including the warranties
of merchantability and fitness for particular purposes and of all other obligations or liabilities of manufacturer. No agent,
employee, or representative of the manufacturer has authority to waive, alter or add to the provisions of this warranty,
nor to make representations or warranty not contained herein
1
2
3
4
5
6
7
1
2
3
4
5
6
7
Fig. 8
1
2
3
4
5
6
7
Fig. 9
5
Controller Guide.indd May08
G75 Irrigation Window Controller
13
Battery Installation
Replace the battery at the start of each irrigation
season and when the low battery symbol appears.
1. Using a Phillips screwdriver, remove the
four battery cover screws.
2. Remove the battery cover and seal.
3. Replace the battery.
4. After reattaching the seal, put the cover back,
and secure with the four screws.
Maintenance and
Troubleshooting
Seal
Battery cover
Screws
When replacing
seal, push seal tabs
into slots.
Fig. 10
6
