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525STID-MSD
The optional triducer 525STID-MSD is de-
signed for thru-hull mounting. Note the fol-
lowing points when installing.
• Select a location where turbulence or
bubbles do not occur when cruising.
• Select a location where noises from pro-
pellers and stripe lines are lessen.
• The transducer must always remain sub-
merged, even when the boat is rolling,
pitching or up on a plane at high speed.
525STID-PWD
The optional triducer 525STID-PWD is de-
signed for transom mounting.
Select the location where influences from
bubbles and turbulences to ensure the
best performance. Allow adequate space
above the bracket for it to release and ro-
tate the sensor upward as shown in the
right illustration.
Mount the sensor close to the centerline
of your boat. On slower heavier displacement hulls,
positioning it farther from the centerline is accept-
able.
For single drive boat, mount on the star-board side
at least 75 mm (3") beyond the swing radius of the
propeller, as shown in the right figure.
For twin drive boat, mount between the drives.
Note 1: Do not mount the sensor in an area of turbulence or bubbles, near water in-
take or discharge openings; behind strakes, struts, fittings, or hull irregularities; behind
eroding paint (an indication of turbulence).
Note 2: Avoid mounting the sensor where the boat may be supported during trailering,
launching, hauling, and storage.
Pretest 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.
ø 79
BOW
133
2.00"-12
UN threads
ø 51
140
27
Height without
speed sensor
191 mm (7-1/2")
Height with
speed sensor
213 mm (8-1/2")
1. MOUNTING
7
Unit: mm
Height
Height
75 mm (3")
minimum beyond
swing radius
1-11
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