OWNER' S GUIDE & INSTALLATION INSTRUCTIONS
Transom Mount
TRIDUCER
Multisensor
®
U. S. Patents: 4,555,938; 4,644,787; 5,606,253; 5,719,824
Canadian Patent 1,233,341
IMPORTANT : Please read the instructions completely
before proceeding with the installation. These
instructions supersede any other instructions in your
instrument manual if they differ.
CAUTION : NEVER USE SOLVENTS
Cleaners, fuel, paint, sealants, and other products may
contain strong solvents, such as acetone, which attack
many plastics greatly reducing their strength.
Applications
• Not recommended for boats with large or twin screw inboard
engine(s)
• Requires 89mm (3-1/2") of headroom to install
• Good operation up to 44kn (50MPH)
• Vertically orients sound beam on hull with deadrise angle up to 30°
• Accommodates transom angles from 2
• Bracket protects multisensor from frontal impact only
Tools & Materials
Screwdrivers
Pencil
Safety goggles
Dust mask
Electric drill
Drill bits:
Bracket holes
Transom hole (optional) 18mm, 11/16", or 3/4"
Cable clamp holes
Masking tape
Marine sealant
Straight edge
Zip-ties
Water-based antifouling paint ( mandatory in salt water )
Figure 1. Headroom required on a stepped transom
with Integral Release Bracket
Model P58
°
°
–22
4mm, #23, or 9/64"
3mm or 1/8"
minimum
headroom
89mm (3-1/2")
Record the information found on the cable tag for future reference.
Part No._________________Date___________Frequency________kHz
Pretest Speed & Temperature Functions
Connect the multisensor to the instrument and spin the
paddlewheel. Check for a speed reading and the approximate air
temperature. If there is no reading or it is inaccurate, return the
product to your place of purchase.
Mounting Location
For the best performance, the multisensor must be in contact with
aeration-free and turbulence-free water. Mount the multisensor on
the transom as close to the centerline (keel) of the boat as
possible. On slower heavier displacement hulls, positioning it
farther from the centerline is acceptable.
Headroom —Allow space above the bracket for it to release and
rotate the multisensor upward (see Figure 1).
Caution : Do not mount in an area of turbulence or bubbles:
Near water intake or discharge openings
Behind strakes, struts, fittings, or hull irregularities
Behind eroding paint (an indication of turbulence)
Caution : Avoid mounting the multisensor where the boat may be
supported during trailering, launching, hauling, or storage.
• Single drive boat —Mount on the starboard side at least 75mm
(3") beyond the swing radius of the propeller (see Figure 2).
• Twin drive boat —Mount the multisensor between the drives.
AIRMAR
®
Figure 2.
Mounting
location
on single
drive boat
AIRMAR
®
75 mm (3")
minimum beyond
swing radius
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