Airmar ST200 - Manual

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Thru-Hull, Retractable
Speed & Temperature Sensor
Models: ST200, ST550
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.
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:
3mm or 1/8"
Hole saw: ST200 44mm or 1-3/4"
ST550 51mm or 2"
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 51mm or 2"
ST550 60mm or 2-3/8"
Fiberglass cloth and resin
or cylinder, wax, tape, and casting epoxy
Identify Your Model
The model name is printed on the cable tag.
ST550
INSTALLATION INSTRUCTIONS OWNER’S GUIDE &
Record the information found on the cable tag for future reference.
Part No._________________Date___________
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.