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13
WIND 3150 Installation and Operation Manual
NAVMAN
box needs to be. Allow extra length for
terminating the cable in the junction box. Cut
the masthead cable to this length from the
mounting block. Do not throw away the other
piece of cable.
5 Lead the bare end of the masthead cable into
the hole at the top of the mast, down the
conduit in the mast and out the hole at the
bottom of the mast. Fit a strain relief clamp or
cable tie to the cable at the mast top. Fill both
cable holes in the mast with sealant.
6 Feed the end of the cable through a gland on
the cable junction box. Strip the cable jacket off
and terminate the wires on the terminal block
supplied.
7 Take the piece of masthead unit cable that you
cut off earlier and connect the cable into the
back of the WIND 3150 display unit. Run the
cable between the display unit and the cable
junction box:
Keep the cable away from other cables,
engines, fluorescent lights and power
inverters.
Secure the cable at regular intervals.
8 Cut the cable to length, allowing extra length
for terminating the cable in the joining box.
Feed the end of the cable through the other
gland on the cable junction box. Strip the cable
jacket off and terminate wires on the terminal
block, matching the wire colours.
9 Screw the lid on the junction box and screw the
box in place on a panel.
10 Fit the wind cups to the shaft on the masthead
unit using the allen key supplied.
11 Attach the arm to the mounting block:
Plug the arm into the mounting block.
Screw the sleeve on the arm onto the
mounting block.
Power/data wiring
1 Wire the display unit power/data cable:
The unit requires 12 V DC power. Fit a
power switch and fuse to the power supply
or power the unit from a fused auxiliary
switch. The fuse should be 1 A for up to five
instruments.
The output to external beepers and lights is
switched to power negative by the WIND
3150 to sound the alarm. If the external
beepers and lights require more than
250 mA DC total, fit a relay.
A single unit can be wired as shown below:
Fit mounting
block to mast
top (Step 1)
Fit
wind
cups
Mast
Plug arm
into block
Arm
Screw sleeve
onto block
Mast
WIND 3150
Display unit
Cable junction box
Cable
Hole in mast,
fill with sealant
Forward
Hole in mast,
fill with sealant
Cable runs
down inside of
mast in conduit
Cable strain relief
Installed Masthead Unit
Green
Switch
Yellow
White
Orange
Blue
Black
Red Fuse
1 A
Mast head unit cable
External beepers
or lights (optional)
NMEA in (optional)
12 V
DC
power
NMEA out (optional)
NavBus (optional)
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