Page 1
Page 2
16
5T50
WindTrim
and
5peedTrim
Operation
andInstallation
Handbook
ST50
WlndTrlm
and
SpeedTrlm
Operation
and
Installation
Handbook
1
6.
Specification
.
15
-
...
1/
...
1
••'0
5··.
~S
%
10~
1/
...
1
... '0
5··.
~S
oto
10~
,
'15
-:~10
•
Power
Supply
-11vto
16v
•
Current
Consumption
-
90ma
(illumination
off)
-
215ma(Maximum
illumination)
•
Operating
Temperature
- 0
degCto+70
deg
C
•
Size
-
110mm
(4.33in)x110mm
(4.33in)x24mm(lin).
Overall
depth
39mm
(1.5
in)
•
Computer
- 8
bit
Intel
microprocessor+8K
Rom
•
Display
-
analogue
+/-15%
-
digital0-60
kts
•
Illumination
- 3
levels
and
Off
with
back
lit
display
and
pointer.
...
-:~10
ril
iM
'15
~
rc;3Q
....
'lOLl'.
.
15
-
~i038d
I
81042·1
Autohelm
and
SeaT
alk
are
registered
Trade
MarksofNautech
Limited
Autohelms
policyofcontinuous
improvement
and
updating
may
change
product
specifications
without
prior
notice
Copyright
Nautech
1993
Page 3
2
ST50
WindTrim
and
SpeedTrim
Operation
and
Installation
Handbook
ST50
WindTrim
and
SpeedTrim
Operation
and
Installation
Handbook
5.2
Lockingon(ST50
Wind
Trim)
15
To
lock
the
instrument
onto
the
current
displayed
value
simply
press
lock.
This
stores
Apparent
wind
speed
and
direction
and
True
wind
speed
and
direction.
Each
pressofthe
LOCK
button
will
now
cycle
through
the
following
information:
•
Apparent
Wind
speed
•
True
Wind
speed
•
Apparent
Wind
direction
•
True
Wind
direction
Any
variation
from
the
current
and
locked
values
willbeindicatedonthe
analogue
pointerasa
percentageofthe
locked
value.
The
locked
value
canbechangedbypressing
the
incremenVdecrement
key
until
the
desired
locked
valueisshownonthe
display.
Wind
Speed
units
(Knotsorm/s)
willbethe
sameasthoseonthe
Main
Wind
instrument.
To
returntothe
normal
display
press
LOCK
twice
within1second.
5.3
Lockingon(ST50
Speed
Trim)
To
lock
the
instrument
onto
the
current
boat
speed
simply
press
LOCK.
Any
variation
from
the
locked
value
willbeindicatedonthe
analogue
pointerasa
percentageofthe
locked
value.
The
locked
value
canbechangedbypressing
the
incremenVdecrement
key
until
the
desired
locked
boat
speedisshownonthe
display.
To
returntothe
normal
display
press
LOCK.
Page 4
14
5.
Operation
ST50
WindTrim
and
SpeedTrim
Operation
and
Installation
Handbook
ST50
WindTrim
and
SpeedTrim
Operation
and
Installation
Handbook
Contents
3
•
Push
and
hold
down
the
LOCK
button
for1secondtoswitch
on
(If
off),
or
to
display
the
current
levelofillumination
(If
already
on)
Controlofillumination
levelsiscommontoall
ST50
instrument
modules.
The
controlisalways
selected
using
the
left
hand
push
button
(LOCK).
The
ST50
Wind
Trim
and
Speed
Trim
Instruments
can
onlybeused
when
a
Sea
Talk
compatible
Wind/Speed
Instrumentisconnectedtothe
bus.
Information
from
the
respective
transducersisthenisthen
put
onto
the
bus
and
displayedbythe
Trim
instruments.Further
Trim
instruments
may
be
connectedtothe
bustoprovide
displaysatsecondary
steering
positions.
5.1 Illumination
[=}~
LOCK
0*
b
[
B.D]
b
Q3
o
o
Pack Contents 5
1. Introduction 6
2. Control Head 6
2.1
Siting
7
2.2
Mounting
procedure
7
Surface
Mounting
7
Bracket
Mounting
8
Flush
Mounting
9
2.3
Power
supply
9
2.4
ConnectiontoSeaTalk
compatible
Instruments/Autopilot..10
2.5
Connectiontoseparated
Instruments
10
2.6
Ring
Connection
11
3. Faultfinding
12
4. Maintenance
13
4.1
Display
units
13
4.2
Cabling
13
Advice
13
5. Operation
14
5.1
Illumination
14
5.2
Lockingon(ST50
Wind
Trim)
15
5.3
Lockingon(ST50
Speed
Trim)
15
6. Specification
16
•
Push
the
LOCK
button
within8secondstoselect
the
illumination
level
L3
High
L2
Medium
L1
Low
LO
Off
Note:
Display
returnstoprevious
status
after8seconds.
Page 5
4
ST50
WindTrim
and
SpeedTrim
Operation
and
Installation
Handbook
ST50
WindTrim
and
SpeedTrim
Operation
and
Installation
Handbook
4.
Maintenance
4.1
Display
units
13
•Incertain
conditions,
condensation
may
appearonthe
window.
This
will
not
harm
the
instrument,
and
canbeclearedbyswitchingonthe
illuminationtothe
brightest
level.
•
Never
use
any
chemicalorabrasive
materialstoclean
your
ST50
Trim
instrument.Ifthe
instrument
becomes
dirty
wipe
clean
with
a
damp
cloth.
4.2
Cabling
•
Avoid
running
cables
through
bilge's
where
possible
and
secure
any
coiled
lengthsatregular
intervals.
•
Avoid
running
cables
closetofluorescent
lights,engines,radio
transmitting
equipment
etc.
•
Check
cabling
for
chafingordamagetoouter
casing,
replace
where
necessary
and
re-secure.
Advice
Should
any
difficulties
arise,
please
consult
Nautech's
Product
Support
departmentinthe
UK.oryour
own
National
Distributor
who
willbeable
to
provide
expert
assistance.
Page 6
12
3.
Fault
finding
5T5O
WindTrim
and
5peedTrim
Operation
and
Installation
Handbook
5T5O
WindTrim
and
5peedTrim
Operation
and
Installation
Handbook
Pack
Contents
5
All
Autohelm
products
are
subjecttoa
comprehensive
test
procedure
priortopacking
and
shipment.Inthe
unlikely
event
thatafault
does
arise
the
following
check
list
should
help
cure
the
problem.
The
following
items
are
includedinthe
ST50
WindT
rimjSpeedT
rim
packs.
1.
Power
loom
5.
Fixing
studs
Fault
Digital
and
analogue
display
not
working.
No
exchange
of
information
between
SeaTalk
instruments.
(i.e.
illumination
levels)
Failureofa
group
of
instrumentsinthe
SeaTalk
chain.
Cause
No
supply.
Action
Check
Cabling
and
security
of
Sea
Talk
connectors.
Return
Instrument
for
repair.
Check
securityofSeaT
alk
Connectors
0
Remove
instruments
one
by
onetoisolate
faulty
unit.
Check
securityofSea
Talk
Connectors
between
functioning
and
non
functioning
units.
2.
Instrument
head
3.
Protective
cover
4.
Handbook
J
I.
\ •••. 0'./
.'
5 'I"
5'.
"":'10
10
;'15
15
-
ru
+
lOCK""-
~
/V"
[g)*~
EJ
6.
Fixing
nuts
7.
Dealer
list
8.
Warranty
booklet
Autohelm
WINDTRIM
AND
SPEEDTRIM
Operation
and
Installation
-3
...--------4
r-
5
•'"1""""1"""1".
I§
Autohelm
WORLDWIDE
SERVICE
CENTRES
..
6
2
Autohelm
WARRANTY
TermsandCondlllons
010401
Page 7
6
ST50
WindTrim
and
SpeedTrim
Operation
and
Installation
Handbook
ST50
WindTrim
and
SpeedTrim
Operation
and
Installation
Handbook
11
1.
Introduction
Congratulations.
You
are
now
the
ownerofan
ST50
Trim
instrument.
The
ST50
Wind
trim
and
ST50
Speed
Trim
Instruments
provide
racing
crews
withupto
the
second
informationonchangesinWind
Speed
(True
or
apparent)
and
Boat
Speed.Inaddition
the
WindT
rim
can
alsobeusedasa
steering
indicator
for
wind
direction
(Trueorapparent).
Both
instruments
are
repeaters
and
receive
Speed;Wind
from
the
.Sea
Talk
bus.
Simply
lock
the
instrument
onto
the
current
value-shownonthe
digital
display-and
the
analogue
pointer
will
indicate
changesinthat
figure
ofupto
+/-15%.The
locked
value
canbeincreasedordecreasedatany
time
using
the
increment/decrement
button.
SeaTalk
extension
cable
Cat
no.
0131
9m
(30ft)
Junction
box
2.6
Ring
Connection
®
.............--
®
o
(J/~.
®
\J~J
®
;iif--~--)i·l
®
Installations
that
havealarge
numberofinstrumentsonthe
SeaT
alk
bus
may
requireasecond
ring
main
connection.
This
shouldbefed
backtothe
circuit
breakertoavoid
excessive
voltage
drops.
This
canbechecked
using
the
table
below:
SeaTalk
Cable
length
Upto10m
(33ft)
Upto20m
(66ft)
Max
numberofunits
(Single
connection)
13
7
Max
numberofunits
(Second
connection)
26
13
The
second
connection
shouldbemadetothe
spare
leadonthe
last
instrument
and
led
backtothe
circuit
breaker.Ifthe
SeaT
alk
bus
is
receiving
power
fromanautopilot
course
computer,
the
second
connection
shouldbemadeatthe
spare
SeaT
alk
terminalonthe
course
computer.
Page 8
10
2.3
Power
supply
5T50
WindTrim
and
5peedTrim
Operation
and
Installation
Handbook
5T5O
WindTrim
and
5peedTrim
Operation
and
Installation
Handbook
2.
Control
Head
7
The
ST50
Speed
;Wind
Trim
Instruments
receive
their
power
from
the
Sea
Talk
bus.
They
can
only
display
Speed;Wind
information
transmitted
on
the
Sea
Talk
busbySeaT
alk
compatible
Speed
and
Wind
Instruments
and
cannotbeusedasstandalone
instruments.
2.4
ConnectiontoSeaTalk
compatible
Instruments/Autopilot
All
SeaT
alk
instruments
and
autopilot
control
units
receive
both
power
and
information
from
the
SeaT
alk
bus.
Each
unit
has
two
SeaT
alk
connectors
(3
pin)onshort
150mm
(6in)
tailstoallow
adjacent
unitstosimply
plug
together.
e-
M
(Y)
~
E
E
o
......-4
110mm
(4.331n)
---...
(6
[ - J
r-~
Cl
39mm
(l.5in)
24mm
I--I~
Separated
instruments
are
connected
using
oneofthe
SeaT
alk
extension
cables
available.
These
are
supplied
withaSeaTalk
connector
fitted
to
each
end.Ajunction
boxisalso
availabletorejoin
the
cableifitiscut
to
ease
routingorfor
shortening.
If
preferred,
any
two
core
screened
cabletothe
following
specification
maybeusedinthe
placeofthe
SeaT
alk
cable.
~~II
II
000'00-0
To
course
computer
bus
connection
2.5
Connectiontoseparated
Instruments
To
any
further
ST50
instruments
or
autopilot
control
units
2.1
Siting
The
Wind/Speed
Trim
Instrumentisdesigned
for
aboveorbelow
deck
installation.
Position
whereitis
:
•
Easytoreadbythe
helmsman
•
Reasonably
well
protected
from
physical
damage.
•Atleast
230mm
(gin)
fromacompass.
•Atleast
500mm(gin)
from
radio
receiving
equipment.
•
Accessible
from
behindtosecureinplace
and
run
cables.
Note:
The
back
coverisdesignedtobreath
throughaductinthe
cable
bosstoprevent
moisture
accumulation.
Minimum Copper Area
A.W.G
Screen
2
Cores
O.5mm
O.5mm
22
22
Page 9
8
ST50
WindTrim
and
SpeedTrim
Operation
and
Installation
Handbook
ST50
WindTrim
and
SpeedTrim
Operation
and
Installation
Handbook
9
2.2
Mounting
procedure
Surface
Mounting
The
surface
mustbesmooth
and
flat.
1.
Use
the
template
providedtomark
the
centresofthe
two
fixing
holes
and
cable
boss.
Note:
Adjacent
units
should
have
6mm
(1/4
in)
separationtoallow
room
for
the
protective
covers.
2.
Drillto4mm
(5/32
in)
diameter.
3.
Usea50mm
(2in)
diameter
cuttertodrill
the
hole
for
the
centre
boss.
4.
Screw
the
two
fixing
studs
(2)
into
the
back
cover.
5.
Pass
the
cable
tails
through
the
central
hole
and
secure
the
instrument
with
the
thumb
nuts
provided
(3).
A
sealing
gasket
(4)isalready
attachedtothe
back
coverofthe
instrument.
Bracket
Mounting
Asanalternativetosurface
mounting,akit
(CatnoD
130)isavailable
to
bracket
mount
the
instrument.
2
Flush
Mounting
A
flush
mounting
kit
(Cat
No.D183)
for
installations
whereaflush
mount
is
requiredoris
more
desireable.Full
installation
instructions
are
provided
with
the
kit.
1/
I'.
I 4
~y
)f
1'11'1
, 2
o
('
,
01117-1
Loading...