Furuno Ls4100 - Manual (Page 35)

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3. Press the [MODE] key to choose
SINGLE FREQ.
4. Choose 50 kHz or 200 kHz, and then
press the [MENU/ESC] key to close
the mode menu.
5. Press the [MENU] to show the main
menu, and then press ▲ to select
Auto mode.
6. Press ► ▲ to choose Off.
7. Press the [MENU/ESC] key.
8. Press the [GAIN] key to set the gain
to “5” and then press the
[MENU/ESC] key.
9. Press the [RANGE] key to set the
range to 10 meters (feet) and then
press the [MENU/ESC] key.
10. If the bottom is displayed in dark
gray and the depth indication
appears, the mounting location is
suitable. Go to “Final preparation.”
11. If the bottom is not displayed in dark
gray tone, the mounting location may
be unsuitable. Do the following:
a) Press the [POWER/BRILL] key to
turn off the power.
b) Gently dismount the transducer
with a piece of wood.
c) Reattach the transducer
elsewhere as shown in “Attaching
the transducer.”
d) Check the installation again.
Final preparation
Support the transducer with a piece of
wood to keep it in place while it is drying.
Let the transducer dry 24-72 hours.
4.5 Optional Triducer
525ST-MSD
The optional triducer 525ST-MSD is
designed for thru-hull mounting. For
how to install this transducer see
paragraph 4.2.
φ
79 mm
133 mm
2.00"-12 UN
threads
φ
51 mm
27 mm
7 mm
140 mm
Triducer 525ST-MSD
525ST-PWD
The Transom Mount Transducer or
TRIDUCER
® Multisensor with Integral
Release Bracket 525ST-PWD is
manufactured by AIRMAR Co. These
instructions are also included with the
sensor.
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
Scissors
Masking tape
Safety goggles
Dust mask
Electric drill
Drill bit for:
Bracket holes: 4mm, #23, or 9/64”
Fiberglass hull: chamfer bit
(preferred),
6mm, or 1/4”