Airmar TRIDUCER P39 Owner's Manual

OWNER'S GUIDE & INSTALLATION INSTRUCTIONS
Transom Mount
with Integrated Release Bracket
TRIDUCER
Model: P39
Patent http://www.airmar.com/patent.html
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 glasses, a dust mask, and
ear protection when installing.
WARNING: When the boat is placed in the water,
immediately check for leaks around the screws and any
other holes drilled in the hull.
CAUTION: Never pull, carry, or hold the sensor by the
cable as this may sever internal connections.
CAUTION: Never strike the transducer with anything
except the palm of the hand. Never strike the paddlewheel.
CAUTION: The bracket protects the sensor from frontal
impact only.
CAUTION: Never use solvents. Cleaner, fuel, sealant,
paint and other products may contain solvents that can
damage plastic parts, especially the transducer's face.
IMPORTANT: Please read the instructions completely
before proceeding with the installation. These instructions
supersede any other instructions in your instrument manual
if they differ.

Applications

• Recommended for boats up to 7m (22') long
• Not recommended for boats with inboard engine(s).
• Not recommended for a stepped hull
• Adjusts to transom angles from 3
• Vertically orients sound beam on hull with deadrise angle up to 28
• Good operation up to 44kn (50MPH)
Tools & Materials
Safety glasses
Dust mask
Ear protection
Pencil
Electric drill
Drill bits and hole saws:
Bracket holes
Transom hole (optional) 2mm or 1/16" larger than connector Ø
Cable clamp holes
Masking tape
Angle finder
Grommets (some installations)
Marine sealant (suitable for below waterline)
Screwdrivers
Straight edge
Cable ties
Water-based anti-fouling paint (mandatory in salt water)
Multisensor
®
Smart
™
 
–20
4mm, #23, or 9/64"
3mm or 1/8"
Record the information found on the cable tag for future reference.
Part No._________________Date___________Frequency________kHz
Sensor
Pretest Speed & Temperature Functions
Connect the sensor to the instrument and spin the paddlewheel.
Check for a speed reading and the approximate air temperature. If
there is no reading(s) or it is inaccurate, check the connections
and repeat the test. If there is still no reading(s) or it is inaccurate,
return the product to your place of purchase.

Mounting Location

CAUTION: Do not mount the sensor in line with or near water
intake or discharge openings; or behind strakes, struts, fittings, or
hull irregularities that will disturb the water flow.
CAUTION: Do not mount the sensor in a location where the boat
may be supported during trailering, launching, hauling, or storage.
• For the best performance, the sensor must be in contact with
smooth water. To identify an area of "clean" water, observe the
water flow off the transom while the boat is underway.
• Allow vertical space above the bracket for it to release and
rotate the sensor upward (Figure 1).
• Mounting the sensor on the side of the transom where the
propeller blades are moving downward is preferred (Figure 2).
• Mount the sensor as close to the centerline (keel) of the boat as
possible to ensure the transducer's face remains in the water
when the boat is turning.
- Single drive boat—Mount the sensor at least 75mm (3")
beyond the swing radius of the propeller.
- Twin drive boat—Mount the sensor between the drives.

Vertical space
NO speed sensor
109mm (4-5/16")
Vertical space
with speed sensor
130mm (5-1/8")
Figure 1. Stepped transom:
vertical space required
Copyright © 2003 - 2019 Airmar Technology Corp.
NOTE: The side of
transom where
propeller blades are
moving downward is
preferred.
vertical space
Figure 2. Mounting location
on single drive boat
Copyright © 2003 - 2011 Airmar Technology Corp.
75 mm (3")
minimum
beyond
swing radius