17-273-01 re
v.
03
12/04
CAUTION
:
NEVER USE SOLVENTS!
Cleaners, fuel, paint, sealants, and other products can
contain strong solvents, such as acetone, which attack
many plastics greatly reducing their strength.
Shorty
™
Thru-Hull Depth Transducer
Low Profile, Flush, and Retractable Models:
P6, P7, P8, P206, P207, and P208
Applications
• Recommended for fiberglass or metal hulls only
•
Never
install a plastic thru-hull housing in a wood hull, since
swelling of the wood can possibly fracture the plastic.
• Low profile housing recommended for cruising sailboats and
planing hull powerboats
• Flush housing recommended for racing sailboats and high-
speed powerboats
• Hull deadrise angle should not exceed 20º
Tools & Materials
Safety goggles
Dust mask
Electric drill with minimum 10mm (3/8") chuck capacity
Drill bit
3mm
or
1/8"
Hole saw
51mm or 2"
Countersink tool (installing P206, P207, P208 flush housings)
Sandpaper
Mild household detergent
or
weak solvent (such as alcohol)
File (installation in a metal hull)
Marine sealant (suitable for below waterline)
Additional washer [aluminum hull less than 6mm (1/4") thick]
Zip-ties
Water-based antifouling paint (
mandatory in salt water
)
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
Identify Your Model
The model name is printed on the cable tag.
Hull Thickness
Model
Minimum
Maximum
P6, P7 (low profile)
6mm (
1
⁄
4
")
38mm (1
1
⁄
2
")
P8 (low profile, retractable)
6mm (
1
⁄
4
")
25mm (1")
P206, P207 (flush)
11mm (
7
⁄
16
")
43mm (1
3
⁄
4
")
P208 (flush, retractable)
11mm (
7
⁄
16
")
30mm (1
3
⁄
16
")
Mounting Location
Placement
Choose a location:
• Where the transducer will be continuously immersed in water.
• Where the water flowing across the hull is smoothest with a
minimum of bubbles and turbulence (especially at high speeds).
• Where the transducer beam will be unobstructed by the keel or
propeller shaft(s).
• Away from interference caused by power and radiation sources
such as: the propeller(s) and shaft(s), other machinery, other
echosounders, and other cables. The lower the noise level, the
higher the echosounder gain setting that can be used.
• Where there is a minimum deadrise angle, not exceeding 20º,
so the transducer beam will be aimed toward the bottom.
• Where there is adequate headroom inside the vessel for the height
of the housing, tightening the nuts, and removing any insert.
Model
Minimum Headroom
P6, P7, P206, P207
76mm (3")
Retractable P8, P208
153mm (6")
Caution
: Do not mount in an area of turbulence or bubbles:
near water intake or discharge openings;
behind strakes, fittings, or hull irregularities.
Record the information found on the cable tag for future reference.
Part No._________________Date___________Frequency________kHz
IMPORTANT
: Please read the instructions completely
before proceeding with the installation. These
instructions supersede any other instructions in your
instrument manual if they differ.
INSTALLATION INSTRUCTIONS
OWNER’S GUIDE &
P6, P7
P8
Low profile, retractable
Low profile
