Spectrum Technologies WatchDog 3349SSH Manuale utente

Sprayer Station
PRODUCT MANUAL
Item # 3349SSH

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Contents
Introduction 3
Components 3
Installing the Station 4
Communicating with the Sprayer Station 11
Installing SpecWare Mobile Software 11
Configuring the Station with SpecWare Mobile 12
Using the WatchDog Weather Station 17
Logging Weather and GPS Data 22
Troubleshooting 24
How the Sprayer Station Works 26
Specifications 31
This manual will familiarize you with the features and operation of
your new WatchDog Sprayer Station. Please read this manual
thoroughly before using your instrument. For customer support, or to
place an order, call Spectrum Technologies, Inc. at
(800) 248-8873 or (815) 436-4440
between 7:30 am and 5:30 p.m. CST
FAX (815) 436-4460
e-mail: info@specmeters.com
www.specmeters.com

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Introduction
Thank you for purchasing the WatchDog Sprayer Station.
The Sprayer Station is designed to provide an accurate
indication and record of the environmental conditions
around a vehicle, whether it is stationary or in motion. It
allows for real-time measurement of weather data before,
during, and after a field operation.
Components
Your WatchDog Sprayer Station package should contain
the following components:
• Sensor Unit
• Mounting Post
• Cable Assembly
• Vehicle Power Adapter
• Hook & Loop Fastener Strips (2)
• User Guide

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Installing
the Station
Choosing the Mounting Location
The Sensor Unit must be mounted in “clear air”—away
from obstructions in any direction that will interfere with
air flowing through the unit. Ideally, this would be on the
roof of the cab or the tank. If the Sensor Unit is not the
highest point, be sure to mount it far enough from any ob-
struction so there is no interference with the air flow.
Because the Sensor Unit has an electronic compass, it
should be at least 3' (1 m) away from strong magnetic
fields from equipment such as radio transmitters. Because
it has a GPS, be sure it is as far as possible from high-
powered transmitting antennas to avoid mutual interfer-

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ence. Similarly, mount the Sensor Unit far enough from
an existing GPS unit to avoid interference, and to keep the
Sensor Unit from blocking the GPS unit’s view of the sky.
The Sensor Unit must be installed vertically—NOT tilted
to one side. Tilting the unit will introduce an error in the
compass reading.
If you are using the magnetic mount, remember that you
must have a steel surface to attract the magnet. With a fi-
berglass roof, this usually requires applying an adhesive
steel plate, as is used to provide a mounting point for GPS
units. The magnetic mount can also be removed, and a
standard ¼” bolt used to attach the mounting post to the
vehicle.
Once you have decided on a location, note which direction
you want the cable to travel. At this time, you may wish to
mark the front of the mounting post (the side which will
be pointing toward the front of the vehicle).

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Assembling the Sensor Unit, Cable, and Mount
1. Gather the Sensor Unit, Mounting Post, and Cable Assem-
bly.
2. With the nut assembly on the cable near the Sensor Unit
connector, slide the cable into the cable exit slot at the top
of the Mounting Tube. Leave several inches of cable
topped by the connector above the nut assembly.
3. Screw the nut assembly onto the top of the Mounting Tube.
Hand-tighten only. Do not over-tighten. Caution: If you
want to use a thread lock, use plumber’s tape. Do not use a
liquid thread lock as it may weaken the plastic, causing it to
swell and crack.
4. Remove the protective cover from the connector, and the
warning label from the bottom of the Sensor Unit. Plug the
7-pin connector into the Sensor Unit. The alignment key on
the connector fits into a notch in the base of the Sensor
Unit.
5. Be sure the alignment tabs on the Sensor Unit are facing
forward and parallel to the centerline of the vehicle. Re-
member to orient the front of the Mounting Post forward as
well, so the cable will exit in the correct direction. Slide the
captive nut upward and screw it onto the base of the Sensor
Unit. Hand-tighten only. Do not over-tighten. Be careful

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NOT to rotate the Sensor Unit or loosen the nut assembly
from the antenna mount/extension tube. Double check to be
sure the alignment tabs are still facing forward.
Alignment
Please note that, for clarity, the above diagram shows the sen-
sor alignment tabs and the cable exit both facing forward, it is
uncommon for the cable to run forward from the sensor. It
would usually run to the rear or one of the sides, and the cable
exit should be aligned accordingly. The sensor itself must face
forward.
Temporary Mount
For temporary mounting of the Sprayer Station, slip the cable
through an open door or window. Caution: do not damage the
cable when closing the door or window. For doors, avoid the
area near the hinges as well as near the latch. Both areas exert
extremely high forces on the cable.

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Permanent Mount
The Cable Assembly will have to be disassembled in or-
der to thread the cable through a hole in the wall or roof of
the cab. Although the cable will fit through a ¼” hole, a
larger hole is recommended to fit a grommet, to help en-
sure a watertight seal.
There are two versions of the connector box on the end of
the cable. The first generation box is approximately the
size and shape of a deck of cards, and has a sliding battery
cover. The current generation box is smaller, and is la-
beled as “Item #3349CB”. Instructions for the original
box are available from Spectrum Technologies.
Disassembling the Cable Assembly:
1. Open the connector box by inserting a screwdriver in
the slots on the side and twisting to separate the top
and bottom halves.
2. Using a small screwdriver (2 mm, 2.5 mm, or 1/10”
blade – a small “electronics” screwdriver has a 1/8”
blade which will not fit), loosen the six screws, and
remove the wires from the terminal block.
3. Cut the wire tie holding the cable and pull the cable
out of the connector box.

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Reassembling the Cable Assembly:
1. Thread the seven wires into the holes on the side of
the terminal block, and tighten the screws to secure the
wires. The wire colors should be matched to the
marked terminals as:
• TD(A) or TDA Yellow
• TD(B) or TDB Orange
• RD(A) or RDA White
• RD(B) or RDB Blue
• GND Black and Clear
• +12VDC or +12 Red
2. Secure the cable with a wire tie through the two holes
on the circuit board.
3. Press the two case halves together, making sure the
LEDs are under the holes next to the label.
Interior Terminal Block

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Connecting to your Laptop
Attach the connector box to your PC with the 9-pin seral
connector. If your PC’s power cable prevents a direct con-
nection, you must use a 9 pin male/female serial extension
cable. If your laptop does not have a serial port, attach a
USB to Serial converter cable (available from Spectrum
Technologies as Item # 3661USB).
If your cable has anchor screws, use them to hold the ca-
ble securely to the connector box. If you have anchor nuts
(as seen in the photo below), use a wrench or pliers to un-
screw the anchor nuts. No disassembly is required.
Replacing the Humidity Sensor
The humidity sensor on item 3349SSH can be replaced
with sensor item number 3349H.
To replace the sensor, use a
Phillips screwdriver or
wrench to unscrew the two
screws and pull off the old
sensor and replace with the
new sensor.
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