4. INSTALLATION
39
Case 1
If the bottom is displayed in reddish brown
the installation is suitable. Go to step 8.
Case 2
If the bottom is not displayed in reddish
brown, go to step 7.
7. Change the mounting location for the
transducer.
1) Turn off the power.
2) Gently dismount the transducer with a
knife or a piece of wood.
3) Attach the transducer to a different lo-
cation, referring to steps 2-6.
8. Support the transducer with a piece of
wood to keep it in place while it is drying.
Let the transducer dry 24-72 hours.
4.6
Triducer
DO NOT overtighten screws. They may be
damaged.
525STID-MSD
The optional triducer 525STID-MSD is de-
signed for thru-hull mounting. For how to in-
stall this triducer see section 4.3.
Triducer 525STID-MSD
525STID-PWD
The optional transom mount triducer
525STID-PWD can be installed by the thru-
hull method or the inside-hull method.
Pre-test for speed and temperature
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, return the sensor to your place
of purchase.
Tools and materials needed
Mounting location
To ensure the best performance, the sensor
must be submerged in aeration-free and tur-
bulence-free water. Mount the sensor close to
the centerline of the boat. On slower heavier
displacement hulls, positioning it farther from
the centerline is acceptable.
Allow adequate space above the bracket for it
to release and rotate the sensor upward.
Height required at mounting location
φ
79
133
2.00"-12 UN
threads
φ
51
7
27
140
Unit: mm
BOW
• Scissors
• Masking tape
• Safety goggles
• Dust mask
• Electric drill
• Screwdrivers
• Drill bit:
For bracket holes: 4 mm, #23, or 9/64"
For fiberglass hull: chamfer bit (preferred),
6 mm, or 1/4"
For transom hole: 9 mm or 3/4" (optional)
For cable clamp holes: 3 mm or 1/8"
• Straight edge
• Silicone sealant
• Pencil
• Cable ties
• Water-based antifouling paint (mandatory in
salt water)
Height
Height without
speed sensor
191 mm (7-1/2")
Height with
speed sensor
213 mm (8-1/2")
Summary of Contents for FCV-627
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