Airmar ST200 Owner's Manual And Installation Instructions

OWNER' S GUIDE
Thru-Hull, Retractable
Speed & Temperature Sensor
Models: ST200, ST550
Follow the precautions below for optimal product
performance and to reduce the risk of property
damage, personal injury, and/or death.
WARNING: Always wear safety goggles and a dust
mask when installing.
WARNING: The o-rings must be intact and well
lubricated to make a watertight seal.
WARNING: ST550—Always attach the safety wire to
prevent the insert or blanking plug from backing out in
the unlikely event that the cap nut fails or is screwed
on incorrectly.
WARNING: Immediately check for leaks when the boat
is placed in the water. Do not leave the boat unchecked
for more than three hours. Even a small leak may allow
considerable water to accumulate.
CAUTION: Never pull, carry, or hold the sensor by its
cable; this may sever internal connections.
CAUTION: Never use a fairing with a plastic housing;
the protruding sensor would be vulnerable to damage
from impact.
CAUTION: Never install a metal housing on a vessel
with a positive ground system.
CAUTION: The arrow on the top of the insert points:
• ST200—rearward toward the stern
• ST550—forward toward the bow
CAUTION: Never use solvents. Cleaners, fuel,
sealants, paint, and other products may contain
strong solvents, such as acetone, which attack many
plastics, greatly reducing their strength.
IMPORTANT: Please read the instructions
completely before proceeding with the installation.
These instructions supersede any other instructions
in your instrument manual if they differ.
Pretest
Connect the sensor to the instrument and spin the paddlewheel.
Check for a speed reading and the approximate air temperature
(in appropriate). If there is no reading(s) or it is inaccurate, check
the connections and try again. If there is still a problem, return the
product to the place of purchase.
& INSTALLATION INSTRUCTIONS
Record the information found on the cable tag for future reference.
Part No._________________Date___________
Applications
• Plastic housing recommended for fiberglass or metal hull only.
Never install a plastic housing in a wood hull, since swelling of
the wood may fracture the plastic.
• Bronze housing recommended for fiberglass or wood hull only.
Never mount a bronze housing in a metal hull because
electrolytic corrosion will occur.
Tools & Materials
Safety goggles
Dust mask
Water-based anti-fouling paint (mandatory in salt water)
Electric drill with a 10mm (3/8") or larger chuck capacity
Drill bit:
Hole saw:
Countersink tool (installing a P217 flush housing)
Sandpaper
Mild household detergent or weak solvent (alcohol)
File (installation in a metal hull)
Marine sealant (suitable for below waterline)
Washer or backing block (optional)
Mandatory for aluminum hull less than 6mm (1/4") thick
Slip-joint pliers (installing a metal housing)
Grommet(s) (some installations)
Silicone grease or petroleum jelly (Vaseline
Cable ties
Installation is a cored fiberglass hull (see page 3):
Hole saw for hull interior: ST200
Fiberglass cloth and resin
or cylinder, wax, tape, and casting epoxy
Identify Your Model
The model name is printed on the cable tag.
ST550
3mm or 1/8"
ST200 44mm or 1-3/4"
ST550 51mm or 2"
®
)
51mm or 2"
ST550 60mm or 2-3/8"