Airmar S650 - Manual

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Thru-Hull, Retractable with Valve
Speed & Temperature Sensor
Models: S650, ST650
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.
Never mount a bronze housing in a metal hull because
electrolytic corrosion will occur.
• Stainless steel housing compatible with all hull materials.
Recommended for aluminum hulls to prevent electrolytic corrosion
provided the stainless steel housing is isolated from the metal hull.
Tools & Materials
Safety goggles
Dust mask
Water-based anti-fouling paint (mandatory in salt water)
Electric drill with 10mm (3/8") or larger chuck capacity
Drill bit:
3mm or 1/8"
Hole saw: 51mm or 2" (plastic or bronze housing)
57mm or 2-1/4" (stainless steel housing in a metal hull)
Countersink tool (installing a flush housing)
Sandpaper
Mild household detergent or weak solvent (such as alcohol)
File (installation in a metal hull)
Marine sealant (suitable for below waterline)
Additional washer [for aluminum hull less than 6mm (1/4") thick]
Slip-joint pliers (installing a metal housing)
Grommet(s) (some installations)
Cable ties
Installation in a cored fiberglass hull (see page 3):
Hole saw for hull interior 60mm or 2-3/8"
Fiberglass cloth and resin
or Cylinder, wax, tape, and casting epoxy
Pretest
Connect the sensor to the instrument and spin the paddlewheel.
Check for a speed reading (and the approximate air temperature if
applicable). If there is no reading(s) or it is inaccurate, return the
product to the place of purchase.
Mounting Location
CAUTION: Do not mount the sensor near water intake or
discharge openings; behind strakes, fittings, or hull irregularities
that will disturb the water flow.
CAUTION: Never mount the sensor directly ahead of a depth
transducer, since turbulence generated by the paddlewheel’s
rotation will adversely affect the depth transducer’s performance,
especially at high speeds. Mount side by side.
P17
Low Profile
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 valve is not a watertight seal! Always
use the insert or long blanking plug secured with the
retaining pin, safety rings, and safety wire for a
watertight seal.
WARNING: The o-rings must be intact and well
lubricated to make a watertight seal.
WARNING: 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: Stainless steel housing in metal hull—Be
sure the washer contacts the hull. Do not tighten the
hull nut with the washer against the isolation bushing,
as the housing will not be firmly installed. If necessary,
sand the isolation bushing until the washer rests
against the hull.
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.
WARNING: When the valve assembly is removed,
always insert the short, emergency plug with the cap
nut secured with the safety wire for a watertight seal.
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: A stainless steel housing must be isolated
from a metal hull to prevent electrolytic corrosion. Use
the isolation bushing supplied.
CAUTION: Never pull, carry, or hold the sensor by its
cable; this may sever internal connections.
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.
Plastic Housing