Melnor AquaSentry 3300 User Instructions

3300

Automatic Rain Delay

for use with Melnor® AquaTimer™

models 15112, 3015, 3060, 3100 and 3280

User Instructions

Requirements

This unit requires a Melnor® AquaTimer model (model)

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15112, 3015, 3060, 3100 or 3280 (not included) that
includes a connector for this Automatic Rain Delay. Follow
the timer instructions to program the timer. For more
information, call 844-MELNOR1.

Install the Batteries

Tool required: Phillips head screwdriver.

Remove the two small screws and remove the battery cover.
Insert two, fresh AA alkaline batteries. Please note the positive
(+) and negative (–) ends of the batteries and ensure they are
inserted correctly following the markings inside the battery
compartment.

Replace the battery cover and screws. A fresh set of quality batteries
should last a full watering season or about nine months.

Selecting the Desired Moisture Level

Individual grass and plant species have varying moisture requirements.
The AquaSentry® Moisture Sensor has three moisture settings plus OFF.
Melnor® recommends initially setting the knob to the medium setting
(two droplets). After a week, you should reassess the moisture in the
area you are watering. If the soil is too wet, adjust the unit to the dryer
setting (one droplet). If the soil is too dry, select the wetter setting (three
droplets). Continue to monitor your particular watering requirements
based on weather conditions and overall plant health.

Attach the Receiver to the Timer

Attach the included adapter rail to the Aquatimer. Slide the rounded
end of the adapter rail into the matching slot on the top of the timer.
Slide the receiver onto the rail along the top of your timer. The receiver
does not need to slide fully on to work properly. You may need to leave
a gap to allow for operation of the faucet.

Allow the LCD on the timer to go blank. This will happen after 5 minutes
on inactivity.

Connect the Receiver cable to the socket located on the back of your
Valve Unit. Note the orientation of the three (3) pins to be certain the
cable is attached correctly.

Checking the Connection

After installing the receiver, press any button once to wake the timer.
If the AquaSentry® system is working properly, an antenna symbol
(along with the word “AUTO” on some models) should appear within
35 seconds indicating communication between the AquaSentry®
and AquaTimer™. If the symbol displays steadily, your AquaSentry® is
working properly and monitoring the soil’s moisture level.

If the antenna symbol is ashing, one of the following has occurred:
a. The batteries in the moisture sensor are not installed properly or they

are too weak.

b. The Moisture Sensor is out of range.
c. Sensor still set to “O”.

If the antenna symbol fails to appear, the connection between the
Receiver and the AquaTimer™ is faulty.

Check all of the above. Wait for 5 minutes or until the AquaTimer™
display turns o. Then wake the AquaTimer™ and watch for the antenna
symbol. The antenna symbol should appear within 35 seconds. Over
time, if the antenna symbol begins to ash, the batteries in the Sensor
are weak and need to be replaced.

Once connected, AquaSentry® will monitor the moisture in the soil and
override your watering program if there is enough moisture in the soil.
If your AquaTimer has more than one outlet, AquaSentry will eect all
zones.

Sensor

Receiver

Place the Moisture Sensor

CAUTION: Never use a hammer or any other tool to pound the unit

!

into the ground. Do not attempt to force the unit into the ground.
This will damage the Sensor. The AquaSentry® has a maximum wireless
range of 200 feet (60 meters). The Sensor should be placed outside the
areas you are watering. For best operation, place the Sensor in direct
sight of the Timer/Receiver. The Sensor can be placed out of direct sight
of the Timer/Receiver, but the range may be diminished somewhat.

To insert the Sensor, rst dig a pilot hole about the same size as the
probe. The hole must be deep enough to bury the entire sensor probe.
Remove any large rocks or other debris from the extracted soil. Place
the Sensor into the hole so that the entire probe is under ground level.
The face of the Sensor unit should be turned toward the Timer/Receiver.
Return the soil to the hole and pack rmly into place. It is important that
the entire front surface of the probe be in contact with the soil.

Adapter

Melnor, Inc. • Winchester, Virginia 22603, USA

877-283-0697 • www.melnor.com

Melnor is a registered trademark of Melnor, Inc.

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