Thursday, March23, 2017

Datamarine Link5000

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Table of Contents Notice Introduction nect to the
transducers and 12 volt
power The transducer information Modern navigation electronics are Datamarine is pleased you have
converted by the main unit to Link
remarkably accurate and free Nevertheless information from chosen the Link 5000 System for
format and is transmitted on the Link
System Configuration your boat We know you will be network
Additionally the 5100 main
your Link equipment or from any ii satisfied with your decision unit has a liquid crystal display and
other navigation aid should not be The 5000 is part of the techni keyboard for display selection
Main Unit relied upon exclusively Instruments cally advanced Link family which The 550 remote
is the most
Transducers can fail due to interference faulty uu allows it to be networked to any common remote
display for the Link
550 Remote transducers incorrect installation other Link instrument Powerful and 5000 System although
other Link
instrument malfunction and operator flexible systems are easily config remotes may be used instead of or
Operation error Always analyze Link informa
Depth ured for your particular requirements in addition to the
550 The 550
tion and cross check with all other These state of the art instru receives wind speed and depth
Speed Log available navigational techniques
Wind ments use only the finest materials information via
the network It per
The prudent navigator will never use and are manufactured in the United forms calculations and displays the
Compass a single navigational aid exclusively
Loran States by people who want to pro results at the
remote location
Remote duce a quality product To serve you The
significant features of the
equally well after your purchase we 5000 system are listed below
Warranty Information
maintain a complete service record
on each instrument and we ask that Model 5100 NAV Station Main Unit
you help us serve you by promptly Depth Functions
egistering your Warranty 25 feet 399 feet or equivalent in
3 TOrealize the full potential of
your Link instruments please take a
meters or fathoms selectable by
below 20 feet
few minutes to read through the meters or fathoms
manual before installing your units 39 position alarm main unit alarm
setting independent of remote
Features Depth offset 4 feet above to 8 feet
below the transducer
The Link 5000 System is a network Remote alarm output 12VDC 05
of advanced microcomputer based amps
instruments designed for moderate Alarm mute control silences main
size racing and cruising sailboats as unit and all other units on the
well as fine motor yachts It inte network
grates the important functions of
speed depth wind compass head Speed Functions
ing and loran data into a single main 000 to 350 knots or 40 MPH
unit This main unit model 5000 or actual speed with trend indicators
5100 can communicate via the Link Average speed resettable
network to any of several dozen dif VMG
ferent Link instruments This makes upwind or downwind
the system flexible and expandable Logs
The Main Unit either the a 000 to 2000 miles resettable
5000 or 5100 serves as the trans b 00 to 10000 miles accumulating
ducer interface point Connections Timer count up to 20 hours
All rights reseedNo part of this work are made here to the wind speed 00OO to 1959 MinSec
covered by the copyrights hereon may be and depth transducers as well as 0020 to 1959 HrsMin
reproduced or copied in any form or by any
the primary connection to the elec Sat Nav output 200 Pulses per
means graphic electronic or mechanical Mile relay switch closure 50
including photocopying recording taping or
information and retrieval systems without
nic compass loran and Sat Nav
e 5000 and 5100 are termed
2 duty cycle
Odjjyright 1985 written permission of Datamarine Main Units since a system must Four levels of damping to smo
Datarnarine Inc
contain at least one of these to con speed display
Wind Functions
Apparent wind speed and angle
Model 5000 Standard Main Unit
identical to 5100
True wind speed and angle main unit without LCD display Four levels of damping to smooth 00 to 10000 miles
wind speed and angle display log
Compass Functions Model 550 Remote Display T MASTHEAD SENSOR
Displays boat heading in degrees h i
magnetic 25 feet to 999 feet or equivalent
Displays true wind direction in in meters or fathoms w
5 5 0 REMOTE
degrees relative to magnetic north 46 position alarm independent of LINK NETWORI
Transmits heading onto Link net main unit alarm
work for use by any other Link Alarm mute control silences
instruments remote and all other units on the
Loran Functions network I
Interfacesto LoranC receivers
Speed Functions 5 0 0 0 OR 5100
with the CDX output
2 0 0 PPM
000 to 350 knots or 400 MPH M A I N UNIT
Transmits Loran data onto Link Speed trend indicators
network Average speed resettable and A A A Y
independent of main unit Interfaces
Depth 205Khz model DX111
nylon low profile upwind or downwind
Speed model SX115 nylon low Timer 0 to 20 hours resettable
and independent of main unit DEPTH
Trip log to 2000 miles resettable
Wind model WX175 with 80 of SPEED COMPASS
cable and independent of main unit XDCR INPUT
Compass Optional model 4 position electronic damping
L500 Nl format Wind Functions
Figure I
Compatible with existing Analog display of apparent wind
transducers anale
Power i G t adisplay
l of apparent wind The 5000 or 5100 main unit acts information Except for receiving its
1016VDC speed as a signal conditioner for the speed data from the main
unit the remote
02 amp day Four position electronic damping depth wind and compass trans works quite
independently from the
04 amp night Power derived from Link network ducers and the loran data It con main Among other things
it calcu
Reverse and overvoltage pro 01 amp day verts this Raw Data to Link format lates its own elapsed
time log
tected to rt20 VDC information and transmits it onto the average speeds
02 amp maximum night
Power off continuous memory of depth alarm
Power off continuous memory of Link network for possible use by any
alarm setting depth units damp alarm setting depth units damp other Link instrument By making the main
ing level average speed and log ing level average speed and log In addition the Link 5100 main remotes largely
independent the two
Lighting unit displays both primary data boat can find a wide
variety of different
Seven levels of intensity
Seven levels of intensity speed apparent wind depth as well uses The navigator for example
selectable selectable as computed functions which are can log the days
run on the main
Link Network Outputs derived from the primary data true unit while the
helmsman can use the
Speed trend log timer depth wind VMG average speeds etc cockpit remote log for buoy
to buoy
depth offset apparent wind speed The main unit also supplies navigation Or the
helmsman can
and angle true wind speed and power to the Link network to any enter a depth
alarm setting in feet if
angle VMG damping compass number of Link remote instruments he likes on the
remote while the
heading crosstrack error dis Each remote instrument con navigator can set a
different setting
tance to waypoint lighting sins its own computer which uses in fathoms or meters
on the main
BNC connector
d e information on the network to unit
ESmpatible with all Link products calculate and display additional The
instruments cooperate br
do not interfere with each other
Installation To recess
the 5000151 00 it is first necessary
Main Unit Mounting The Link to attach the flush mounting
5000 and 5100 are designed tobe brackets to the instrument
mounted in either of two ways Unscrew the four rear case
a screws a few turns each It is not
necessary to remove them just
loosen them to separate the bezel
a from the housing and insert the
two molded flush mounting
brackets When the brackets are
correctly positioned tighten the
1 four screws on the rear panel to
securely clamp the brackets in
I place Torque the screws lightly to
just mate the bezel brackets and
I housing
1 bulkhead
Cut aorhole
in the
the tem
plate provided Be sure that there
is sufficient depth behind the
0 panel for the instrument plus the
connectors and cable loops The
a Recessed into a nav station or b Free standing surface mounted instrument should slide into the
igstrument panel or hanging from an overhead rectangular hole and be
support at the four corners of the flush
mounting bracket with the screws Figure 3
Figure 4
Convenient Location In any weather damage yet a good
mounting arrangement the pri installation will add years to its life
mary consideration is easy view by protecting it against the direct
ing and convenient operation of impact of saltwater rain and the
the keyboard The unit has an intense UV of the sun
especially wide viewing angle dis The front panel is quite
play but the installation will be waterproof but the rear panel and
most satisfying if the keyboard connections are not and should
and display are directly facing the be protected from rain spray and
operator wet environments Water damage
In the case of the non to the circuit boards can be
display 5000 main unit the most severe and can result in a voided
convenient location may be inside warranty see Warranty Statement
a locker or other dry available The 5000151 00 generates
space very little heat so no considera
Weather Protection The unit is tion need be given to cooling or
very well protected against
LY 1 0
half and the plate Only turn the I Main Unit Wiring Remote Alarm The depth
remote alarm terminals are avail
on a few turns Slide this
assembly into the slot in the bot All wiring connections to the Link able to drive an additional buzzer
tom of the housing so the housing 5000 system are made at the main The output is I 2VDC and will
is captured between the mounting unit rear panel Erisure that power to drive up to 50 milliamps This is
plate and the hinge the unit is turned off until all connec sufficient to power Sonalert type
The hinge may be mounted tions are made horns but larger buzzers may
with the hinge point either on the Transducer Cables Connect require a relay for more current or
front of the instrument or to the
I the speed depth and wind trans different voltages
rear depending on the mounting ducer cables The depth and Datamarines A1 57 alarm
angle desired See Figure 5 speed cables are simple plug on panel would be a good choice if a
If a hanging overhead mount is
best the instrument housing may
be rotated to position the hinge
mounting slots on the top of the
connectors Be sure the speed
transducer cable connects to the
speed jack not to the Link net
work jack The BNC plugs are
remotely located alarm is desired
Sat Nav Output This is a SPST
relay contact closure which allows
interfacing to nearly all current
unit as shown in Figure 6 identical so a mistake can easily satellite navigation receivers In
Remove the four screws on the be made It would be a good idea most cases a voltage available at
rear panel Remove the rear panel to label the end of each cable to the sat nav receiver should be run
and unplug the two cable connec avoid future confusion if the unit is to terminal 1 terminal 2 should be
Figure 5 tors Slide the housing away from ever removed for service or sea returned
to the input on the
the front bezel and electronic I
sonal storage receiver The receiver should be
Free Standing Hinge Mounting assembly rotate 180 and slide it The wind cable should be
I To surface mount the main unit
the optional hinge mounting
back on Reconnect the two
plugs taking care to observe cor
0 connected to the screw terminals
being careful to observe the cor
set to 200 pulses per mile This
may be in nautical or statute
miles See the SpeedlLog sec
I bracket may L339 be attached rect orientation Replace the rear rect color coding The wire shield
tion beginning on page 34 If in
to the instrument housing First panel and four screws Be careful should be connected to the doubt the sat nav
attach either half of the hinge to not to overstress any cables and SHLD terminal taking care to or Datamarine can
help with spe
the support plate with the three not to pinch any wires between prevent stray wire strands from cific interface
screws provided Remember to the rear panel and housing shorting out against any other
point Link Network Connection
slip the nylon spacer over the Torque the screws lightly to just
mate the housing and bezel Connection to the Link network is
center screw between the hinge Compass and Loran The
made with the BNC connector
compass input is N1 Format cable supplied If possible check
The model L500 Link compass this cable with an ohmmeter
sensor is connected with the red
wire to Power the black wire to
compass and the white wire to
before connecting to Link instru
ments at either end Resistance
between the connector center pin
compass The same compass
sensor can also be used with
and the outer shell should be w
infinity A low resistance indi
1 compatible sat nav receivers
cates a short circuit probably at
andlor autopilots the connector which should be
The loran input is compatible corrected
with any approved loran which
Power Connection To avoid
has a CDX output drive If in
doubt contact Datamarines Cus accidental short circuits and other
tomer Service Department to miswiring problems the power
I check compatibility with your par
connection should not be made
II ticular loran receiver
until all other connections are
The Loran input is connected made and checked
with the red wire to loran and
the black wire to loran I
Again labeling these similar
The 12 volt dc power for the
instrument should be connected
using the power cord provided
connect RED to POS BLACK to
I wires will prevent future confusion
NEG The Link main unit is pro
tected against polarity reversal
Transducer Route the cable away from
sources of electrical noise such as
existing Datamarine Corinthian
NOTE Obtain the 12 volt dc Installation generator and ignition wires Do The 5000 is not designed
power and ground both positive not shorten the transducer cable operate on any
transducers other
and negative side as directly from Depth Transducer The key as this will detune the transducer than those supplied for
it by
the battery as possible Avoid to proper operation of the depth and impair the performance of the Datamarine Any attempt
to tune or
power circuits which share loads sounder is the correct installation depth sounder Coil up the excess match to another
transducer is at
with ignition alternators radio and maintenance of the transducer cable and store in a convenient the owners risk
transmitters radar sets winches The general and detailed recom w low noise location If a longer The 5000 is designed
only for
solenoids starter motors or motor mendations that follow should guide cable is required refer to section operation on 12 volt
battery systems
driven accessories Excessive the placement and installation of the Longer Cable Should the unit
fail to work
electrical noise associated with transducer Keep the transducer face clean properly check power
wiring and
these devices may prevent the Datamarine recommends and do not allow buildup of lay voltage transducer
connections and
5000 depth sounder from operat against inside of the hull installations ers of bottom paint Gently transducer condition
Many reported
and water boxes Reliable opera
ing at maximum depth and cause
random numbers to be displayed tion and full performance specifica
tions cannot be assured unlessthe
remove old paint before applying
fresh antifouling paint Do not use
cases of failure or malfunction are
traced ultimately to water box instal
Proper wiring practice paint remover or other solvents lations fouled transducers
requires a correct size fuse or cir
cuit breaker in line with the
instrument as close as possible to
the source of power For your pro
tection ensure that a proper cir
transducer face is in direct contact
with water under the hull
General Guidelines
CAUTION A bronze trans
ducer must not be installed directly
Never strike the transducer face a
sharp blow as damage to the
transducer andor depth sounder
could result
The speed depth and wind
painted transducers and spliced
transducer cables DO NOT
cuit breaker or fuse is installed
A 3 or 5 amp fuse or breaker is
onto a steel or aluminum hull Spe
are needed to avoid
Q 6
Lransducers are fully compatible with
suggested The rear panel of the damage due to electrolysis of dis
main unit contains a push to reset similar metals Please request tech
circuit breaker which should pro nical bulletin 10 from Datamarine
tect the instrument in the event of for details
Provide for continuous contact of
internal malfunction However
protection of the boats wiring and the transducer face with the water
switch panels can only be assured under all normal operating attitudes
with a circuit breaker or fuse as of the boat
close to the source of power as On sailboats the transducer
possible should be oriented to within 10
Note that your instrument is degrees of vertical for best accu
designed and warranted for oper racy and performance
A location approximately 23 aft is
ation on 12 volt battery systems
only Improper voltage can typically suitable Avoid locations
seriously damage the instrument immediately downstream of thru E
and will void the warranty hull fittings struts etc Avoid turbu
If additional cable is neces lent areas On fast planing hulls
mount well aft and close to the a Figure 7
sary for the power connection 16
AWG wire or larger is suggested centerline to avoid the planing 1 DX111 I I
up to lo 14 AWG up to 25 wake
Separate power connections Mount the transducer as deep as
must be made to any loran or sat possible to avoid the effects of
nav receiver interfaced to the shallow turbulence The trans
2I L 5000 ducer should not be the lowest
point in the event the vessel runs
aground P q61 BEST LOCATION
Sometimes when first launched required High quality conventional Flush Mount transducer face will not be fully paint will
work well Installation DX111 112 130
wetted due to paint film oily surface Datamarine ships the flush For the installation of the flush
or a microscopic film of air The mounting DX111 transducer with mounted transducers the will miss continuously until
the 5000 It is an excellent trans should be chosen such that the
the boat has run a short distance ducer which is compatible with most deadrise angle is minimum see Fig
AntiFouling Paint We installation requirements However ure 1O normally amidships at a single thin coat of other
transducers are available and imum paint on the transducer might be preferred in some
face to prevent fouling It should be situations If the deadrise angle is each time the boat bottom
than 15 degrees the painted First gently sand off any DX112 Similar to DX111
will not operate to full depth when
previous paint such that only one except bronze construction the yacht is heeled down on the
fresh coat is on the transducer face opposite side In such cases two
Paint buildup will reduce perfor DX130 Similar to DX112 transducers can be installed one on
mance as will a fouled transducer except chamfered for flush each side with a gravity operated
Special transducer paint is not mounting into countersunk hole switch Model A106 to select the
Figure 10
leeward transducer Next tighten the nut firmly The
To install the transducer care cable is then routed to the depth
i fully choose the best location in the sounder to complete the
hull Bore a hole 21 I 16 in diameter The DX130 transducer installa
bed the transducer flange and tion is similar except that the hull
area onto the hull using one must be countersunk to accomo
of the high grade marine bedding date the transducer 90 included
compounds It is recommended that angle Datamarine supplies a spe
a block of 3 or 12 plywood be cia1 tool for this oper
ross sectton of hull
drilled 21 I 16 in diameter and
bedded between the hull and nut
ation See Figure 9
In case of cored hulls balsa
see Figure 9 This acts as a locking
device and also provides a com
foam etc it is important that the
countersink transducer DX130 be
pliant interface to accommodate
variations in the hull inner surface
properly backed up with a rigid rein
forcing plate See Figure I ICut
thru hull fittlng
Figure 8 1
plywood backing block
Figure 9
away the inner skin and the core The transducer should be Transom Mounting
centerline as possible while avoid
material to accomodate the reinforc aimed downward to within 10 DX200 Proper mounting of the ing the
general engine area On a
ing plate while preserving the outer degrees of vertical DX200 transducer is extremely twin
engine trans
hull skin Pierce the outer skin with a Once the location is selected important to the eventual perform ducer
may be located between
pilot hole for later boring location following the guidelines determine ance of the sounder Since the the
engines Avoid locating the
Epoxy bond the reinforcing plate to the local deadrise angle Saw the pulse from the transducer will not
transducer behind air slots in the
the outer skin and the surrounding fairing block in half lengthwise at this sound through air the transducer boat
hull or in line with drains or
core material Lay up fiberglass angle so that the transducer face is should be located where aeration
suctiontype clothlmat over and around the rein aimed directly downward Cut the is least likely to occur Keep the
Mount the transducer as
forcing plate After resin cure bore a block for minimum projection into the transducer as close to the boat shown
in Figure 15 so that the flat
21 I 16 hole from outside the hull water for least drag
centered on the pilot hole Counter
sink bed and install a plywood
Apply a good quality under 1
Figure 13
water bedding compound on the 1
backing block as described earlier fairing block leveling block and
It is recommended that the transducer stem Install on hull
plywood backing block be cut no DO NOT OVERTIGHTEN A
larger than the reinforcing plate to torque of 20 ft Ibs is recommended
avoid jackout stresses on the Recessed Mounting On
some boats a recessed mounting
Faired Transducer Installation may be preferred for low drag and
DX1 04 Stem type bronze minimum projection See Figure 13
transducer for installation with Remember do not install the trans
molded fairing block or recessed
into stem of boat Best for use
ducer at an angle greater than 10
where deadrise angles exceed I
10 See Figure 12
section thru
ull centerline
side view
Fiaure 12
eimxy 1
fairing filler
1transducer recessed
f o r e l a f t view
in counterbored cavity
Figure 15
deadrise angle
1 AL
t 2 D l
face is flush with the boat hull on Now an electrical check of the Longer Cable Speed Transducer
the inboard side of the transducer transducer may be in order If water
face and has a positive trim angle has gotten into the crystal area of Long Cable Installation The Installation
of a few degrees to provide a flow the transducer it will generally be 5000 has been specially tuned to
operate with the transducer and The most important aspect of instal
of clean over detected by a resistance check lation is the proper choice of
p cable supplied with it In case the
the face of the transducer This Connect either lead of an of the thruhull
impeller transducer in
may require some compromise ohmmeter to the center pin of the installation requires a cable longer
than the standard 30 extension your boat Operation and accuracy
since boat attitude will vary transducer connector Connect the of the instrument
are largely deter
according to boat speed other lead to the outer contact of the 1 cables can be used
mined by the location of the impeller
Upon trial and error the most connector Datamarine can supply the
A1 13 10 cable extenders which with respect to hull flow characteris
effective tilt angle of the trans The transducer normally tics The following
is some detail
ducer will be found causes an ohmmeter to read max have connectors allowing multiple
concerning the 1
imum resistance an open circuit I extenders to be strung
Anything less than that suggests Transducer water damage Again a check of the
However the instrument will General
CAUTION A bronze trans
have to be modified to provide cabling and connector may locate
the problem If it doesnt and the I the extra cable capacitance ducer must not be installed directly
onto a steel or aluminum hull Spe
Visually checking the transducer resistance remains consider the
cial precautions are needed to avoid
cable and connector may not be transducer defective and in need of 1 Figure 7 6
damage due to electrolysis of dis
enough to determine the trans quality One convincing Transducer Cabling The
Link depthsounder uses tranducers
similar metals Please request tech
nical bulletin 10 from of determining a transduc
for quality is to hang a second supplied by Datamarine They have 1
A hull moving through water over the edge and see if a standard 30 of cable which should
create a boundary layer of water
the performance not be shortened Lengthing is
immediately adjacent to the If the performance covered in the next section
which is not still water but is consider the results of this Other Transducers Other
along with the hull because of fric
test to indicate that the solution to transducers in the 205 210 Khz
tional drag For this reason it is
your problem is transducer related range may work with the Link depth
inaccurate to put a tiny paddle wheel
Marine growth excess bottom paint sounder Datamarine cannot be held
impeller a short distance through the
or water flow may be the reasons for responsible for performance or satis hull at any
location and expect to
the apparent failure A visual inspec factory operation of your instrument measure the exact
speed of the hull
tion of the transducer face and the when other transducers are used through the
water One must hull area may reveal the and we offer no guarantee of I
Remove the rear panel 4 with the boundary layer of moving
source of the problem Also check success water
screws disconnect the two con
ing the cabling and connector for nectors and withdraw the front The
boundary layei is defined
any physical andor electrical prob bezel and electronic assembly as the thickness
of water which is
lems may be helpful C1
from the housing Locate capaci pulled along with the hull due to form
tors C6 and C7 near the center of or frictional drag Datamarine
the top circuit board See Figure 16 research tells us that the boundary
Carefully clip out one or both layer effects are related to velocity
according to the number of extra boat speed waterline length or dis
cable extenders used tance aft of the bow and the surface
Number of 10 Remove condition of the hull foul or fair and
Extensions angle of the keel
1 40 total C7 only Of these factors distance aft of
2 50 total C7 only the bow is by far the most important
3 60 total C6 and C7 ie the further aft the thicker the
4 70 total C6 and C7 boundary layer In fact water flow far
No more than 4 cable extensions aft is likely to be turbulent called
should be used separated flow by experts shape and steps or strakes are Naturally you should be able to flow
0bsee the installed thruhull fitting RECOMMENDED LOCATION
but generally flow aft of midships is and prudence dictates that it should
either side
a Approximately 3 for speed measuring be regularly inspected along with all
close lo centerline
the other thruhull fittings installed in b Forward of
c Retaining pin aligned
On fast deepvee planing hulls your yacht
the forward vee sections push water It is a good idea to tie the
aside and the resultant flow is not dummy plug onto the indicative of the forward prog with a short lanyard Whenever the
ress of the hull through the water transducer is removed for the recommended transducer or cleaning the dummy plug will be
location for heavy planing hulls isdif immediately at hand No need to
ferent than that for displacement search through lockers or Mounting Surface
conditions of the hull Select a location as far forward
will modify boundary layer effects and as deep as you can which
This is difficult to measure exactly Keeps the transducer submerged we
can predict that a mid during all normal boat attitudes and
ships mounted transducer may motions and heel angles
measure as much as 5 low when Is freely accessible and visible Figure 7 7 Speed Transducer Displacement Hulls
the hull is badly fouled or rough as from within the yacht See Figure 17
compared to the original calibration or 18 QfJ
with a smooth hull A centerline location if possible
Boundary layer effects in the is best
normal ranges of yacht speed are The standard speed transducer
directly proportional to speed This shipped with the 5000 is the SX115
means that once installed you can Other transducers are available as Impeller Transducer
b Inboard of first strake
well c
Retaining pin aligned
calibrate at one speed and thereafter should be forward
of intakes shafts
it should be accurate at all speeds of SX115 struts props
interest Fiberglass reinforced nylon flange 7
Accessibility Accessibility is projects only 3
a major consideration in selecting a SX125
hull location for the transducer This Bronze version of SX115
is vitally important Be certain to SX135
select a location which allows free Flush version of SX125 for counter
access to the transducer from within sunk hole installation
the yacht From time to time you sx201
may want to remove the impeller for Transom mount transducer for small Q
inspection or cleaning This is a sim fast powerboats
ple and safe operation when the
yacht is in the water if the fittings are
easily reached and if space allows
hand and arm movements Each
time the impeller or plug is removed
you will take on a quart or two of
water Life is more pleasant if this
Sufficiently aft to be in maximum
beam section forward of engines
water can drain directly to the bilges
for pumping
18 Speed Transducer Planing Hulls
Installing the Transom Mount
Installation of the ThruHull Now permanently install the Transducer If your unit is a tran
Fitting To install the thruhull fit thruhull fitting using a small amount som mount speedometer it will be
ting follow these steps Drill a of bedding compound under the shipped with an SX201 speed
pilot hole in the center of the flange on the outside Be sure to align transducer Your knowledge of wake
selected location This should be the fitting so that the holes for the and wash created by your boat
done from inside to ensure accessi retaining pin are pointed fore and aft 4 should be used to locate the best
i bility Next using a hole saw make Tighten the nut firmly from the inside
mounting position on the transom
a hole 21 in diameter using the of the yacht Do not overtighten Do Some general are
pilot hole as center The body of the not use a wrench on the plastic 1
shown graphically here TWIN 110 DEEP VEE HULL
thruhull fitting should fit snugly thruhull 1 Drill pilot holes for the three
through that hole At this point we urge you to
It is recommended that a block install either the plug or the impeller
selftapping screws provided in the
hardware kit Use a small amount of
of 38 or M plywood be drilled 2lAs assembly into the thruhull fitting as 1 bedding compound on each screw
diameter and mounted between the a precaution against launching the
hull and hex nut This acts as a lock
ing device on rigid hulls such as
yacht with the hole open The retain
ing pin should be installed to keep
and attach the SX201 transducer
using a flat and a split lock washer
under the screw
fiberglass It also provides a com the plug or transducer securely in I After installing the SX201
pliant interface to accommodate
variations in hull inner surface see
place Be sure the arrow on the
impeller assembly is pointed forward
transducer tilt the unit downward
approximately 2 figure 22
Figure 19 The Orings provided should be
installed in the two grooves of both
I Securely tighten the hex head
bolts which attach the impeller
the impeller transducer and the plug
The silicone grease provided
assembly to the right angle brackets Figure 21
With the transducer installed in
will help seal the Orings and ease I
the transom mount bracket select a Fiaure 22
removal of the assembly Keep the location well above the waterline to
plug handy feed the 10 cable through the tran
REMOVABLE A120 TRANSDUCER Next the 30 long coaxial cable som Drill a 716u hole to clear the
should be installed in the yacht to coaxial connector and secure the
connect the transducer to the loose cable using the clamps pro
KEEPCLEAN8 LU instrument Securely position the vided It is recommended that the
cable connector at the transducer hole around the cable be sealed
end so that the connector will not be with a flexible bedding compound to
RETAINING PIN lying in the bilge water even when prevent spray from entering your CABLE TO DISPLAY
heeled boat
Once the cable is connected
ALIGN HOLES FOR between the transducer and the
main unit the speed transducer is
ready to operate
The Link 5000 main unit is not
designed to operate with any trans Figure 20
ducer except the one supplied for it
THRUHULL FITTING by Datamarine Any attempt to mate SX201
or calibrate to any other type of
transducer is at the owners risk
Note For cored hulls balsa
SX115 SX125 foam and the SX135 countersink
thru hull fitting follow the hull rein
forcement and mounting instructions
for the OX130 depth transducer
alte a LID
Speed Transducer Maintenance final positioning It is a good idea to I 4 Black To
complete the transducer parts are susceptible use a thread locking screw sealant I 5 Blue
connect the cable from the junction
to fouling by marine growth or such as Loctite on all masthead 6 Yellow box to the
main unit as is any other under connections Its surprising how I 7 Shield NOTE Make
sure all wires
water part of your boat We have much vibration occurs on the mast 8 Not Connected including the
shield are a coat of antifouling paint to truck The masthead boom rotating in the
junction box This will assure
your impeller assembly This first The Link 5000 main unit may cups and wind vane is designed to proper
operation of your Link mast
coat should last the first season in be field adjusted to compensate for mount in the masthead mounting head unit
most waters masthead mounting angles up to bracket The boom should be slid This
completes the wiring
We urge you to flush the impeller 180 port or starboard The mount into the grommeted hole until it seats required to connect
the and its cavity with fresh ing bracket should be mounted firmly over the rear alignment pin unit to the main
water under pressure whenever the horizontally shim as needed as see Figure 23 At this point the
boat is hauled and renew the anti close to the top of the mast as pos boom retaining pin should be
Figure 23
fouling paint as necessary sible An L shaped adapter bracket inserted to its full extent Make sure
You may order replacement is provided for mounting on the side the wind cups are on the bottom end
parts for the impeller as follows of a mast if this is needed
of the wind sensor housing when the
SX120 complete impeller The remaining section of the I
boom is mounted
P121 impeller and shaft only
cable should be installed from the
final location of the main unit and run I The masthead cable connector
should now be plugged into the
P122 retaining pin only
P123 Oring seals
to the estimated location of the wir 1 receptacle on the mounting bracket
4 included only
ing junction box Cable length is not
critical and may be added to or I After mating the connector set rotate
the locking ring until it seats to secure
A1 03 retaining pin and trimmed if necessary the connection The cable is
Orings only some thought should be given designed to provide a drip loop but
to the problem of the masthead 1 this loop must not interfere with any
cables slapping inside an aluminum masthead hardware spinnaker hal
Mounting the spar Some spars have an extruded yards blocks etc
track or cable raceway which pre
Wind Sensor The masthead installation is
Masthead Bracket
vents the noise Sometimes small
sailslide lugs can be found to travel 1 now complete and ready for
Wiring up an internal groove The cable can 1 Mount the junction box in a dry
be run up the inside tied off to a convenient location and once the
sailslide every few feet As a last mast is stepped run both cut ends
Prior to stepping the mast lay out i
resort the cable can be pulled into of the wire into it Generally there is
the cable and masthead mounting
the spar while a helper goops the a good location on a bulkhead up
bracket to determine the length of
cable with silicone caulk When the I1I
the cable needed Cable length high clear of any possible bilge
should allow for running to a con cable is pulled into place the silicone water Protect the cable going to and
venient dry location for the junction will bond the cable to the spar with from the junction box from acciden
box once the mast is stepped Once just enough force to prevent slapping 7 tal damage Install the spade lugs
yet will permit removal if necessary I provided and connect to the termlnal
the necessary cable length is
determined it should be cut and fed
down the mast from the masthead
If needed on a particular instal
lation Datamarine can provide a
strip red to red white to white etc
as shown on Figure 24
The bracket should be cable connector to use in place of Boats with masts stepped on
mounted so the grommeted hole the junction box Wire color and pin deck can either run the cable
connections are provided below A through the deck through a gland fit
and the rear alignment pin line up
120 cable Model WC177 is also ting and use the junction box or can
with the forelaft axis of the boat the
available use a waterproof connector hole being forward A
mounting template is provided in the Pin Color able from Datamarine at the base of
back of this manual The bracket 1 White the mast
may be moved slightly within the 2 Red
confines of the adjustment slot for 3 Green
Masthead Repairs and To install a new wind Damaged wind assembly line up the set screw with I
cups or direction vanes may be
simply replaced without the need of
the flat portion of the shaft and slide
the assembly on the shaft until the
If your wind functions are not operat Installation
ing properly the following the masthead assembly to shaft is flush with the bottom of the should be checked before returning
Shipped with your wind cup hub see Figure 25 the wind instrument to the factory
Datamarine L500 compass sen
Both the wind cups and the Tighten the set screw securely Check the mast step junction box
sor is the instruction manual with
wind vane may be removed by Please note Individual wind cups or connector for correct wiring detailed
installation instructions for
loosening the small set screw in the are not whole three Check polarity of power connec
this sensor Please contact our
side of each assembly and sliding cup assembly must be changed tion at the main unit LINK System
Service cups or vane off of the shaft After changing the cups or the With the masthead unit connected for
information on installing other
Loosen only the lower of the two set vane the masthead unit should be and the main unit power discon compass on
newer wind vane hubs reinstalled as directed in the section nected the following resistances
To replace the wind vane the entitled Mounting the Wind Sensor may be checked with an
following steps should be followed Masthead Bracket and Wiring ohmmeter at the main unit rear
Loosen set screw on vane hub
Remove old vane and hub
panel terminals or at the junction
Install new vane and hub on If there is an apparent short The LINK
5000 main unit accepts
the shaft or open circuit the Link wind sys LORAN crosstrack
error and
Tighten set screw tem will not work One should try information
See section entitled Wind to isolate the portion of the system the NMEA
0180 simple and complex
Calibration formats This
format is available on
where the problem is and correct
tQ it before damage to the instrument
the Datamarine Navigator LC
LORAN as well as many other high
Fiaure 25 The masthead unit would quality Loran viewers Please refer to
appear as shown in Fiaure the owners manual for vour receiver
to a DC meter for installation
Figure 26
far Masthead Unit Connector
r 1 Shield Terminal Resistance I 0 Comments
I 1 to2 Approximately half Due to 2 diodes
b I 4 to I scale on I x scale in transmitter
loosen s e t screw
infinity if meter
t o remove vane 6
leads are reversed
2 to 3 8C2 Transmitter rotor
REPLACING l o o s e n s e t screw t o 5 5to6
3Q Transmitter stator
remove windcups 4 to 5 311 Transmitter
pin co infinity
4 7 shield
push onuntil shaft is
flush with bottom
550 Remote The 550 is nearly non
magnetic so you dont have to
Figure worry about local deviation of the
steering compass More important
is to not mount the 550 so close
r to the compass that the compass
is hard to use especially when
First remove the guard by
unscrewing the two bolts at the
deck sockets Pull the guard up
and off the upper pedestal
Slide the mounting brackets
over the guard base with the cor
rect orientation for your type of
If you want to run the Link
network cable through the pedes
tal guard tubing you should drill a
clearance hole for the cable
through the tubing and through
3 the deck at the center of the
guard socket It is not necessary
to drill a hole large enough for the
The 550 remote instrument can be simple installation Also in a variety of different the instrument at the wheel is the
ways Its waterproof housing elimi most visible and convenient loca
nates the need for additional instru tion for the pods or installation hardware First ensure that the pedestal
In choosing a location consider guard is tall enough to and convenience Is the date the 550 without within easy arms reach with the
compass The vertical
Can the displays be seen by every location of the 550 should leave a
one in the cockpit An aft wheel proper handhold in the top of the
location will make it hard for crew guard If the pedestal guard is too
members to use the display informa short longer pedestal guards can
tion Will a bulkhead or bridge deck be obtained from the instrument be visible to the manufacturer with crew and guests in Datamarine
can supply a pedestal
the cockpit guard extension kit Model L341 1
which attaches to the base of the
Pedestal Guard Mount The
550 is perfect for pedestal mount
ing Its designed to accommodate
existing guard and raises up the
top of the guard a sufficient
nearly all pedestal guards for a amount to accept the 550
Figure 28
connector as the cable can be It is also possible on some Overhead Mount If an over kit L342 may be ordered
cut for a connection point below steering systems to run the Link head mount is desired the rear the rear cover as
just described
the deck in a dry location Con cable through the pedestal itself panel of the 550 can be rotated but leave the buzzer in
place Dis
nectors are provided in the instal An entry hole is often provided to 180 to slant the front surface connect the connector
from the
lation kit Although the Link cable pass the cable through or one down towards the operator see circuit board Install
the oring
is coax it is not necessary to use can be drilled Be certain that the figure 30 Carefully remove the provided in the kit into
the connectors at this point cable does not interfere with the f eight screws from the rear panel groove and place the
The simple connectors provided moving steering components or and open the oring up over the skirt on the
will be totally adequate and are
much easier to make up than
with any engine controls Securely
fasten it out of the way to avoid
D buzzer must be removed to allow
the angled rear panel to fit in the
rear panel Reconnect to the circuit
board and place the housing over
standard coax connectors cable damage or jamming the reverse orientation A remote the rear panel bracket
At this point the cable should control mechanisms alarm can be driven by the small While holding the assembly
be strung through the pedestal The BNC connector used on white connector next to the turn it over so that
the rear panel
guard Reinstall the pedestal the remote cable is fitted with a installed buzzer It will be neces faces up Replace the 8
guard with the brackets installed weatherproof boot which should sary to drill the rear panel to pass and their sealing
washers and
Attach the 550 instrument with the make this connection point very the cable through for the remote evenly and lightly
torque the
four screws to the brackets Sev reliable Silicone grease should be buzzer screws to just mate the
eral holes are provided on the applied to the mating halves Replace the eight case bracket and rear
panel Cut an
rear panel to accommodate dif before assembly to keep water screws and evenly and lightly opening in the
mounting guard widths Use the one out Dow Corning 4 is excellent torque Apply only enough torque using the template
provided Apply
which will fit your guard best for waterproofing exposed con to just mate the rear cover to the bedding around the
holes and
nectors like these housing secure the bracket to the mount
Any exposed runs of cable
should be well secured to prevent
Q Flush Mounting If a recessed
flush mount is desired the optional
ing surface with the four screws
accidental damage
BulkheadMount The 550 can
be mounted on a vertical bulkhead
by bolting it directly onto the bulk
head using 28 screws or by
using the optional hinge brackets
L338 If bolting directly onto the
surface use the molded in
threaded inserts to receive the
screws and the template provided
in the rear of the manual to locate r
drilled holes You may order
optional BNC right angle adapter
Kit L345 to allow a hidden coax
cable bedding
compound to seal the holes The
hinge mounts are very flexible and
will provide a variety of mounting
angles as shown in figure 29
Figure 30
local conditions Bottom condi of measure next to the value of
Operation Depthsounder tions sea state transducer instal the depth Successive
presses of
System Power Turn the Link General Information The lation boat speed and the vessels this button will change
5000 System on with the toggle Datamarine Link 5000 depth electrical noise environment are selection
switch on the main unit lower sounder is designed to meet the some of the factors which will Also if a
function other than
right The ON position applies demands of racing and cruising interact to limit maximum depth depth is being
displayed pressing
power to the main unit and all sailboats and power yachts It will indication The user should antici this button will display
depth in
remotes on the Link network The reliably indicate water depths pate a variation in maximum whatever units were
LAMP position adds night lighting between 25 and 400 feet 120 I
depth performance
and operating as location
conditions change selected Additional pushes will
to the main and remote instru meters 67 fathoms and inter change the display to the
ments The lamo intensitv can be faces with the Datamarine Link I The accuracy of the depth units of depth When
the system is
measurement is also affected by turned off and later turned back
adjusted by pushingthe network supplying information to
any number of depth or multi several factors external to the on the last unit of depth selected
button until the desired intensity is function remote units which may depthsounder Variations in the will be remembered and
obtained be connected to that network The velocity of sound transmission in ically selected
On powerup the unit will significant features of your new water caused by salinity tempera NOTE If an alarm has
briefly display and test all digits depthsounder are ture and pressure plus penetration previously set at 12
feet and a
and display symbols The display of soft bottom layers by trans user switches the units
to fathoms
Depth Up to 400 feet 120
should look like this mitted signal can cause errors of the alarm setting is
now 12
meters or 67 fathoms in user
selectable units up to 2 velocity and 1 foot fathoms NOT 2 FATHOMS Care
Display Low power LCD mud penetration under worst should be taken when changing
display case conditions units of measure to check the
DEPTH HEADING Alarm 39 position alarm The sounder is calibrated for
alarm settings
a sound velocity of 4800 A settable in
cond a US standard of
Keel Offset FAULT is provided to allow depth read
ings to be displayed and meas The accuracy of the depth
These upldown controls are
SPEED REL ANGLE ured from the waterline or the measurement circuitry of the
used to adjust the alarm VMG AVERAGE MILES DIRECTION lowest part of the keel depthsounder is
within plusminus
05 over a temperature range of Pushing the lrbutton will first dis
Network Interface This
depthsounder provides Link depth 0 degrees C to 55 degrees C play the current alarm setting with
information for remote instruments and a voltage input range of 11 to the ALARM symbol Successive
located throughout the boat 16 volts dc This corresponds to pushes will then advance the
Next for a few seconds the plusminus 05 feet at 100 feet alarm setting to greater values
display will show the software Ease of Operation The
depthsounder is totally automatic Operation he lV button will decrease the
revision installed This revision
number will h e l us answer anv
questions that you may have
allowing for hands o f f operation
Performance The performance
m alarm settings When the button is
released the last displayed value
about your system The remote of the Datamarine Link depth This button selects which will be stored as the
alarm limit If
software revision may be different sounder relies upon a powerful unit of measure the depthsounder the actual depth
drops below the
than the main unit transmitter used in conjunction will operate with Selecting one of stored alarm depth tne
alarm will
Next the display will change with a proven transducer and a the three will cause the LCD dis sound
to the function selected for display sensitive amplifier to enable oper I
play to indicate the selected unit
before the power was turned off ation at great depths Operation at
At this point any other function great depths is controlled by
may also be displayed many factors thus ultimate depth
capability is a function of current
If the depth alarm feature is convenience however any units bottom First measure the actual The display will read
feet and will
not desired push the muntil mute control will silence any Link depth of water accurately using a either
indicate a number to indi
alarm that may be sounding lead line overside close to the cate an offset above the trans
Alarm OFF is displayed position abeam the transducer ducer as in
reading depths from
Note that the minimum oper
When the alarm sounds it ating depth between the trans not at bow or stern the top of the water
or a number
may be temporarily muted by ducer and the bottom is 25 feet Next if depth below the sur with the minus
symbol to indi
momentarily pushing either 111 or The 1 foot alarm setting is useful face is the desired indication cate an
offset below the trans
only when the keel is at least 15 remove the black rubber plug ducer as in reading depths from
This will disable the audible
feet below the transducer and the from the front panel labeled the vessels keel
alarm but when the boat returns keel offset control see Depth Depth Offset and adjust the A reading
of 0 indicates
to water deeper than the alarm Offset has been adjusted to indi control clockwise with the small that depth
readings are being cal
setting the alarm function will be screwdriver provided until the culated from
the transducer and
cate the depth below the keel
reactivated and the buzzer will 5000 indicates exactly the mea may not take
into account keels
The 5000 may occasionally
sound again if the boat returns to detect a false shallow echo as a sured depth Replace the rubber or props
which are below the
shallow water a second time For plug location of
the transducer
result of fish or wake causing the
example if you have the setpoint alarm to sound momentarily in Or instead if the desired The
number in the Offset
at 10 and the depth drops to 8 error indication is depth clearance display is the
number in feet that
while entering a harbor the alarm below the keel you must also will be
added to or subtracted
Should the operating condi
will sound If adequate water depth know the exact draft of your ves from if the
depth from the
tions be such that the frequency
for the boats draft is assured you of false alarms becomes a nui sel Subtract the draft from the mute the
alarm by pushing measured depth and adjust the
sance the alarm may be disabled Shallow Gain Control and button When you leave
the shallow harbor and the depth
goes over the 10 setpoint the
by selecting the OFF position
l See shallow i l
in the following section
OFFSE3 indicate the actual depth under
the keel See Figure 32
ment The shallow gain control
is located behind the small black
plug on the front panel will sound again anytime The depth alarm setting will Offset Display Holding
the pluq will expose a small
the depth gets less than 10 feet stay the same numerical value the button then pushing the screwdriver
slot to be used to
Whenever the depth is less than when the units are switched from adjust the
feet to fathoms or meters For mon will display the keel
the setpoint even if the buzzer is
muted the ALARM symbol in example if the alarm is set to 10 offset amount on the LCD display
the display will continue to flash while in the feet mode and that caution is in order the display is converted to
Incidentally this mute func fathoms the alarm setpoint will
tion will also turn off the alarm at become 10 fathoms 60 feet Be
the 550 cockpit remote even if the aware of this as you could have a
cockpit alarm threshold is different false sense of security after
than the main units This remote changing units Remember to
control function saves running up reset the alarm whenever the
Depth Offset
and down the companionway units calibration is changed
Reading Reading
Of course the depth alarm Depth Offset This front panel
may also be turned off by read adjustment may be used if it is
justing the setpoint to a depth less desired to have the 5000 indicate
than the current depth or to the depth below surface or depth
1 below position clearance below keel As shipped
Remember that the alarm the 5000 was adjusted to at the main unit can be set the depth below the transducer It
to a different depth than the 550
remotes setpoint This way the
navigator can use his affecting any settings the
should not be altered unless the
user is prepared to proceed with
an accurate To adjust the offset the ves
below keel
helmsman may have entered For sel must be stationary over a flat
This adjustment is used to
adjust the gain for the best com
Using Your Depth Sounder procedure is to determine if the fault
is with the 5000 system or the
promise between wake rejection Link Depth Sounder reliable shallow depth indica
If it is established that the
Anchoring Your depth sounder In the event the depth sounder instrument is defective return it to
tion In general the gain should be
should be used to determine the should fail to operate properly the Datamarine for service with a high enough to ensure
amount of line required to anchor following section provides some description of the sounding but not so high
properly Determine the depth of the guidelines as an aid Repairs should not be attempted by
as to produce shallow readings
water correcting the displayed depth to the owner and service technician the owner as further damage may
due to wake Insufficient gain set
if it indicates the depth below the in isolating and correcting the prob result and the warranty may be
tings may cause loss of echo
transducer or keel Add the height lem The goal of the voided See Section 01 displayed operation The shallow gain from the
water to the bow chock and is preset at the factory and then multiply by 5 as a minimum 5l
OPERATIONAL only need to be adjusted scope Dont forget to allow for the
under extreme conditions tide Pay out the necessary amount
If the display shows FAULT of line
Contour Navigation By Apparent Symptoms Probable Causes Possible Remedies
01 when in shallow water or
misses the correct depth and dis using charts of your area and your
plays twice the actual depth depth sounder it is possible to rec Blank display no indicators Unit defective or power not
Look for backlighting at max
increase the shallow gain in small ognize and navigate by underwater being supplied to 5000
brightness to test for power
increments by turning the adjust features Contour lines generally run
Check connections fuses
ment clockwise parallel to the shoreline except for
rear panel circuit breaker
If the display has a tendency breaks where channels or passages
to show erratic numbers especially between islands occur By following
shallow numbers 3241 etc these contours you can locate these Random erratic depth indications Transducer in turbulent location
Review location fairing and hull
when in deeper water or when in passages in fog You can also follow at higher speeds Good at lower or cavitating at high speeds
See Installation ol
wakes of other boats or FAULT a winding channel in fog more easily speeds under 10 knots
Transducer Section
07 indicating too much shallow than steering a compass course
gain decrease the shallow gain For more information on contour
in small increments by turning the navigation refer to the articles Nav Random erratic depth ndications Excessive electrical interference
Review source of 12 volt power
adjustment until igating in Fog in Motorboat October when engines or auxiliary equip introduced via power cord or
transducer cable routing See
the erratic numbers or the Fault 1978 How to Use Your Depth ment is operating Good with transducer cable Hullborne
Power and Installation of Trans
indicator ceases Sounder for Blind Navigation in quiet ship at all depths acoustical noise from engine
ducer Sections Consider alter
Rudder June 1972 nator noise suppressor
Fishing A Contour Many vibration mounts
types of bottom fish are known to
prefer specific bottom depths for
feeding Note the depth when you Fault 01 display at moderate to Power or gain reduced by low Review power to 5000
do catch fish Then use your Link great depths voltage improper transducer transducer installation and
depth finder to follow that depth con transducer at excessive angle nections Consult charts for
tour along a shoal or bank or poor bottom conditions unusual bottom
Fault 01 display all depths Acoustic signal not being
Examine transducer connector
received Unit or transducer Try another transducer over side
may be faulty if available
Failure to indicate reliably at Electrical noise interfering at Review source of 12 volt power
moderate to great depths higher gain levels Transducer transducer cable routing See
improperly located or damaged Power and lnstallation of
Transducers Sections
units which may be connected to
Special Note To that network The significant features been calibrated for individual trans Average
speed is calculated as
ducer Technicians of your new speedometer are
Speed Display speeds up to 35
Proper performance of the
Avg Speed
And Owners knots 40 mph knotmeter is dependent on good
transducer location as well as cali Total Time since Reset
Average Speed Displays average
All Datarnarine digital depth sounders bration This will be discussed later The
distance and time basis for
speed since reset
were precisely tuned under labora in detail average
speed is different than for
Log Resettable LCD trip log up to
tory conditions All Datamarine sup Aside from these displayed log and time For
2000 miles mechanical total log
plied transducers are tested to performance should not be affected log or
time can be up to 10000 miles
ensure operation with our sounders by the boats environment For reset
without affecting the average
Elapsed Time Resettable for dead speed
as factory tuned Retuning cannot be reckoning race starts etc example the Link knotmeter is done when installed on
a boat Operational problems cannot
VMG Speed made good calcula fected by usual electrical interference
To reset average speed first
push and hold H t h e n momen
tions upwind or down Operation
be corrected by retuning
Trend Indicators Visual indication
of increasing A or decreasing V
tarily pushm
must be u s h e d
The two buttons
and held in that
speed Useful in sail and trim Push the button to select the
SUPPLIED BY DATAMARINE FOR change evaluations Independent order W
have purposely designed
THE LINK 5000 CHECK POLARITY speed functions A single push dis it that way
to prevent inadvertent
trend indicators are provided for plays boat speeds A second push
AND CONNECTIONS boat speed as well as VMG resets
Service bulletins are provided to momentarily displays average speed The first
few minutes after reset
SAT NAV Output Rear panel ter and then reverts to current boat
qualified Datarnarine dealers Many minals supplying 200 contact speed generally
show a large amount of jit
field problems are related to power closuresmile to sat nav systems ter in the
average speed mode This
sources noisy fuses transducer Impeller Transducer Model SXI 15 When in the SPEED mode the will
quickly clear to a very accurate
cable connectors and improper Link knotmeter will display the accu
standard SX125 SXI 35 SX201 rate speed of the boat through the
splices these should be checked optional 41 hz knot standard cali Remember
that the average
first Prompt service is available at water with the following resolutions speed only
shows for four seconds
bration user adjustable 000 1999 in O1 increments
our factory US and foreign distrib Network Interface Provides speed and then the
display utors Service at the factory is free 200 350 in 01 increments
reverts to current boat speed This is
and distance information for The effects of the damping
under warranty and inexpensive out remote instruments located to prevent
accidental confusion
of warranty We highly recommend control will be very evident in the between the
two functions When
throughout the boat speed mode In rough weather min
that a instrument be Adjustable Damping Four steps of displaying average speed
returned to the factory with a con imum damping will result in a very SPEED
AVERAGE indicators will
damping averaging to provide jumpy display as much as 48
cise statement of installation factors jitterfree display under all operat show
and failure symptoms tenths Increasingthe damping rate The
average speed calculation
ing conditions will smooth the jitter to little or none
Ease of Operation The Link can be used for navigation purposes
The SPEED indicator will for example to advance a dead
speedometer is totally automatic always be in the display whenever
allowing for hands off operation reckoned fix Or it can be used to
speed is selected In addition to the help trim the boat for maximum speed
General Information The display showing the speed of the
Periormance The Link knotmeter Racers often use it to keep track of
Datamarine Link 5000 knotmeter is boat the speed annunciator
provides an accurate display of boat average speed during each helms
an advanced microcomputer knot will be displayed along with a trend
speed from 03 knots to over 35 mans turn
meterllog designed to meet the indicator This trend indicator A
demand of racing and cruising sail knots Alternately a statute mile cali increasing speed V decreasing
boats as well as all types of fine bration may be used for speed in speed will be shown each time the This
is the speed made good to
motoryachts It has a precise and miles per hour Though the instru instrument detects a change in boat windward or
downwind display It
accurate speed range of 35 knots ment is capable of readings of well speed will only
operate correctly with both
and a distance range of 10000 over the top figure accuracy is dim When in the speed mode a the wind
masthead and the speed
miles In addition the Link knotmeter inishing due to cavitation at the second push will show the boats transducer
inputs to the main unit
interfaces with the Datamarine Link impeller The knotmeters quartz average speed since last reset operating
Resolution is as follows
network supplying information to crystal time base and 0000 to 1999 in O1
anv number of speed speed guarantee accuracies for all func i
9 200 to 350 in 01 increments
dependent or remote tions provided the instrument has I
VMG is defined as the compo last damping level selected before Calibration The accuracy of the
Calibration of the Link knotmeter
nent of the boat speed which is turning off the main unit is remem Link speed log functions as previously is
done with one adjustment for both
directly into or with the wind a bered and automatically selected at noted is dependent on proper trans
speed and distance Your instrument
detailed illustration and explanation next power on ducer operation as well as calibration
will be calibrated by comparing the
is shown below The damping control
applies to VMG as it does to speed
The system is capable of measuring
speed over 03 to 35 knot range with
speed displayed by the Link knot
meter with the speed calculated by
In addition to the display showing This function gives the user an accuracy of 1OO The distance your
charted distance and measured
VMG the VMG annunciator will be access to the Link knotmeters measurement accuracy is also 1 time
or by comparison to a loran
displayed along with a trend indicator elapsed time which displays the Please note that speed and
speed readout
This trend indicator A increasing elapsed time since last reset or therefore distance are measurements
To calibrate the Link knotmeter
VMG V decreasing VMG will be since the instrument was turned on through the water and not necessarily in
the boat the following guidelines
shown each time the instrument Time will be displayed as follows over the ground Current can add are
detects a change in VMG Minutes and seconds 00OO to 1959 or subtract to give the effective value
Select a course of known distance
VMG is defined as the compo Hours and minutes 0020 to 1959 Thus any navigation reckoning with
markers that can accurately
nent of the boats speed that is When the Link knotmeter is in requires that knowledge of the cur
be sighted A course of 05 to 20
directly upwind or downwind any other mode the elapsed timer rents over the course travelled be
miles is sufficient in length to give
continues to run until either a time used to compute final speed and accurate results The course
reset is performed or power to the distance over the ground should be as free as possible
u instrument is shut off At 1959 HRS
This button selects four discrete The calibration control located
from the effects of turbulence and
damping levels These damping lev and MIN the time resets to 000 on the front panel is used to adjust
els reflect averaging methods which MIN and SEC the instruments to Under relatively
calm wind and
To reset the timer first push the particular hull and location of the current conditions make timed
average speed readings over
increasingly longer intervals The
higher the damping the less jitter you
and hold the a button then
transducer As discussed under
the imoeller in the trans
twoway runs between markers A
B steering a true course The
will observe in the display especially push the button The display ducer does not measure the exact
speed through the water because of
runs should be at a steady speed
which are close to the normal
true in rough water The lower the
damping the faster the display will change to TIME 00OO boundary layer effects Fortunately
operating speed for the boat A
response you will observe when m
the effect is proportional to speed so
that a calibration at one speed is
twoway run will help minimize the
effects of wind and current and is
boat speed changes Damping app
Pressing this button will display good over the full range However essential if there is much of either
lies to both speed and VMG The
the trip log distance since the last calibration should be done at typical present Make sure the boat is up
reset The display will read in hun cruising speeds for example a dis to speed when the runs start
dredths of miles up to 1999 and in placement hull should be calibrated 11 Calculate the calibration
tenths from 200 up to 1999 From at somewhat less than hull speed speed by averaging the speeds over
200 to 1999 miles the display will while a planing cruiser should be the ground for each run between the
read in whole numbers only The calibrated at the most economical markers This method of calculation
annunciators LOG and MILES speed on plane will cancel the effect of current dur
will be displayed This instrument was calibrated ing the opposing runs while dividing
Regardless of which function is at the factory for a typical installation total distance by total time will not
being displayed on the main unit the of the impeller on a typical boat This method will require measuring
Link 5000 knotmeter log continues Since the water flow the distance on your chart and
to accumulate until it is reset When may vary from one installation to recording the time in seconds for
power to the unit is turned off the log another it is a good idea to check each run on opposite courses
reading is remembered and con the calibration and recalibrate if
tinues to accumulate when the unit SOG1 DISTANCE MILES
necessary when the instrument is
is turned back on and the boat is installed on your boat RUN TIME 1 SECONDS
moving At 2000 miles the loa will SOG2 DISTANCE MILES
automtically reset to 000
COS 60
I To reset Log first push and RUN TIME 2 SECONDS
push The
640 5 32 KNOTS
hold then
SOG1 SOG2 1800
should show LOG 000
If the distance used is in nautical Knots MPH Conversion If you Guide The Note that the instrument cali
miles then the calibration speed will calibrated the boat speed to display Link knotmeter is not designed to bration will be
affected by progres
be in knots If statute miles are used in statute miles per hour then both operate with any transducers except sive fouling of
the hull The boundary
then the calibration speed will be in boat speed and wind speed should the ones supplied for it by Datama layer will
effectively increase and
MPH use MPH Calculated functions such rine Any attempt to match or cali the instrument will
indicate lesser
NOTE The speed calibration as VMG and True Wind will be inac brate to any other type of transducer speeds than when
originally cali
units either in knots or mph should curate if mixed units are used will not work The unit is designed brated The proper
remedy is hauling
be kept the same as the units To convert to MPH an internal and warranted for operation on 12 and cleaning of
the boats hull
chosen for wind speed or VMG and jumper must be cut Remove the volt battery systems only If the
impeller and cable seem
TRUE WIND will be incorrectly cal four rear panel screws and open the Should your Link 5000 fail to proper but the
instrument does not
culated See section entitled Knots rear of the instrument Locate and operate at all check power wiring respond to the
handturned impeller
MPH Conversion carefully cut out the jumper Remov When power is applied in the proper signals check
further by disconnect
21 Set the boat up on the same ing the jumper will automatically voltage range and polarity the ing the cable and
shorting the trans
point of sail or engine RPM to return convert wind speed from knots to numeric display should appear ducer input jack
Rapidly and
to the same average speed as before MPH Replace the four case screws Should your knotmeter suddenly repeatedly
shorting the inner con
3 1 Push for boat speed Zero ohm resistor one black band lose its calibration reading lower ductor to the outer body of
the coax
left rear corner of middle pc board than actual speed or display only ial connector should cause the
in the display The LORAN crosstrack error
41 Adjust the front panel SPEED 00 knots when underway the fol speed display to read
other than 00
and will also lowing should be checked If it does the main unit is probably
CAL adjustment until the displayed be converted to statute miles By
speed agrees with the calculated Transducer Connections A not at fault and
the impeller and
cutting the jumper and calibrating small amount of water especially cables should again be checked for
average speed Use the small screw the knotmeter to MPH all displayed
driver provided to fit the internal con saltwater will effectively short out faults The
transducer assembly
and network transmitted units will be the transducer signals Check itself contains internal Clockwise rotation will increase
based on statute miles This will
the displayed speed counterclock cables dry out connections components that
cannot be field
ensure that all distances Log XTE Impeller Should be removed repaired A replacement is required
wise will reduce it Range will be consistent and that all
51 Replace the rubber plug and inspected for nonfouled If the instrument
does not
calculated functions VMG True undamaged freeturning condition respond to the shorting of the trans
the actual boat Wind Mag Wind Direction Reach
speed can be determined from a Keep the thruhull plug handy at ducer input
internal problems would
OO Tack and E3A will be accurate
all times Spin the impeller by be indicated At this point your dealer
loran speed readout However
remember that the loran shows hand to verifv that oeration is or the factory
service department
restored A I O check that the should be utilized See not speed through the
water Be sure to calibrate the unit at
arrow on the transducer oints for information on
a time and location when the wind Speed unctions forward
In saltwater and weedfilled
factory service
Fuse Blowing Power problems
and tidal effects are minimal
Also note that the loran ground Datamarine is extremely proud of areas transducer impeller fouling resulting in repeated
fuse blowing or
speed is derived from its analysis of the Link knotmeter and the way it is can occasionally occur and low tripping of the
rear panel circuit
the past few minutes location fixes constructed As with any electronic speed readings will result Remove breaker require
servicing of the
As a result there is a considerable equipment however many outside and clean the impeller and cavity instrument itself
if the power lines
lag between actual boat speed or factors may influence proper opera and renew the antifouling paint if check out
direction changes and the lorans tion and there is always a chance of necessary Fault 01
This indicates missing
averaged response If using the component failures within the If erratic readings are observed wind data needed
for the VMG cal
loran speed display be sure to set instrument As a first line of help to at certain boat speeds look for faulty culations This
condition is caused
the boat up on a particular heading the owner we have provided the fol connections that may be vibrating or by the Link wind
input not being
and speed and maintain it for 5 min lowing short guide to an improper transducer installation installed or operating properly
utes or more Only after 5 minutes of assist you in isolating certain types as discussed in the foregoing sections
steady heading and speed will the of problems
loran groundspeed display be If at any time you need the
accurate factorys assistance for any problem
whatsoever please call us We are
available to assist you in any Link
Operation The two WlND push True wind angle is generally ful for tactical decisions Am I get
Wind Functions buttons are used to choose the type used for optimizing boat performance ting a wind
shift should I tack or
General Information The Link of wind information to be displayed Upwind each boat in any particular When I round
the windward mark
5000 wind system contains a multi Their functions are as follows wind sea and sail configuration has will it be a
port or starboard wind instrument designed to an optimum true wind angle to main set
By adjusting for
This display is the appar
meet the demand of racing and tain Also sail selection is best made changes in the
current boats head
ent wind instrument information It by reference to true wind strengths ing real changes in the sailboats as well as all types
indicates the wind that one feels and to true wind angles winds can be picked up much more
of power yachts It gives the user
moving with the boat through the True wind direction is very use easily
true wind both relative to the boats
wind and will not indicate the and to magnetic north as
spesr direction one observes with
well as the usual apparent condi
the boat at rest
tions In addition the Link wind sys
The display will show in the I Figure 34
tem interfaces with the Datamarine
center the apparent wind angle with
Link network supplying information
the O indicator as well as the appar
to any number of wind wind
ent wind speed above and to the
dependent and remote
riaht of the anale When in the
units which may be connected to
apparent windmode the APPR REL
that network The significant features
ANGLE indicator will always be on
of your new wind instrument are
Display Low power LCD display Will cause data to be dis
of wind speed and direction
played which is compensated for the
vessels speed This display is equal
to what one would observe if the
Apparent wind as observed on boat was at rest Actual boat speed
board affects both speed and direction of
True wind angle relative to boat the apparent wind one would
True wind direction relative to observe while under way This func
magnetic north tion calculates this effect and
Wind Speed Is for removes it
either knots or mph The first push of this button dis
Masthead Uses Datamarines plays the true wind angle ie the true
WX175 masthead unit A proven wind speed and its angle relative to
aircraft type synchro design the boats current heading
weighing less than 16 oz A second push will cause true
Compass Input Interfaces to any wind direction to be displayed The
electronic compass with N1 true wind direction is the actual wind
output relative to magnetic north This will
Network Remotes This wind only display if an electronic compass
instrument provides Link network has been connected to the main
wind information for remote unit The LCD will clearly indicate
instruments located throughout which wind function is being
the boat The wind instrument also displayed
provides wind information to the APPR REL ANGLE apparent wind
knotmeter for VMG calculations speed and direction
Operation The wind machine is TRUE REL ANGLE true wind speed
totally automatic allowing for and angle off the bow
hands off operation As one TRUE MAG DIRECTION true wind
sails the Link wind instrument will speed and direction with respect to
give continuous wind direction magnetic north
14 KNOTS 37O 1 0 KNOTS 60 6 4 0 KNOTS
and wind speed readings through
360 degrees
Damping This control is a push tape before the mast is that selects four discrete Hint A light liped to the
damping levels These damping lev upper part of the masking tape
els reflect averaging methods which can be gently pulled after speed and wind readings tion is complete This will peel off
over increasingly longer intervals the tape and eliminate the need to
The higher the damping level the go up in a bosuns chair
less jitter you will observe in the dis 3 The instrument can now be
play especially true in rough water aligned to the known vane position
The lower the damping level 4 Select Using the small
the faster display response you will
observe when wind or boat speed screwdriver provided rotate the
changes wind angle calibration control to
The same damping level is change the displayed reading
used for wind functions speed func Moving the control to the full
Figure 35
tions and boat heading clockwise position will lock on to
the wind angle in the display at A good way to fine tune the speed is desired in statute miles per
Pressing the button the first setting is to note the apparent hour instead of knots
see the sec
time will display the current level of that moment then will cause the
displayed wind direction to rotate wind angle on each tack to wind tion KnotsMPH Selection If wind
damping Successive presses will ward If it is different on either side speed is displayed in
mph boat
raise the level of damping until level to the right by one degree per
second Full counter clockwise will hthe offset angle probably needs to speed should also be calibrated in
4 is reached The next press returns be calibrated A likely correction mph so that computed
functions are
to damping level 1 The damping rotate the displayed wind direction
to the left When displayed on a would be half of the difference is displayed as 3P through
between the two apparent angles
dI9 The display will 360 analog meter such as the
550 remote a clockwise control For example if the boat is in the
return to the last selected function a groove at 40 on port tack and
few seconds after pressing the rotation establishes a 1O second
36O on starboard the setting
damp button When power to the clockwise pointer movement A
counter clockwise adjustment should be rotated to the right wind
main unit is turned off the selected
damping level is stored in memory produces a clockwise by 2 400 360 and will be automatically selected
pointer movement A short buzzer
2 Several diagnostic modes are incor
when power is restored beep indicates when each degree
is added or subtracted The lock Turn the adjusting screw to the porated into the 5000 to assist trou
on feature eases calibration when right until 2 beeps are heard then bleshooting When either apparent or
true wind is selected fault codes
Wind Calibration the boat is swinging at the moor
ing or the wind is shifting
center it
Note Be sure to leave the may appear in the display if a prob
Angle Calibration The 5000 When desired alignment is adjustment in the center lem exists
must be aligned with the masthead reached move the control to the no beeping when the Fault 01
Indicates that no mast
vane center of its rotation until the calibration is completed head wind
information is being
1 Remove the small rubber plug buzzer stops and the display is This will load the angle received by the
main unit This could
marked Wind Angle on the front stable The display will then offset into the non be caused by a number of
panel rapidly change to the current wind volatile memory and including missing or
defective mast
2 Set the boat up on a heading vane angle with the new offset prevent accidental head broken or
incorrect masthead
which produces a known appar applied changes wiring defective
components in the
ent wind angle The easiest is 10 main unit etc One
should carefully
put the boat head to wind on a check the wiring and
the masthead
mooring for a 0 apparent angle Wind Speed Calibration As as described in the
the vane can be shipped the 5000 is accurately cali installation section to isolate the
fixed at any particular angle A ibrated to display wind speed in knots cause of this fault This
fault will be
good way to do this is to tape the Except for the knotslmph displayed if
apparent wind true wind
vane fore and aft with masking selecton no further adjustment of or VMG is selected and
the wind
wind speed is necessary If wind information is missing
Fault 05 This indicates missing
data needed for the calculated func
Magnetic Compass 550 Remote
tion MAG True Wind MAG Direc Display QQb or for MAGHDG display is caused by data or due to the fact a
compass is faulty or not connected
to this instrument correctly NOTE
Only Nl format at 5 volt TTL This button will display the is acceptable as a compass boat heading in degrees
The electronic compass input is dis
Refer to the masthead installa played directly in addition to being
tion section to determine if the mast transmitted on the Link network for
head and associated wiring is faulty use by other instruments and for
Most wind failures can be traced to computed cable and connector Remember that this display
and any function which uses
boat heading is only as good as its
source of data Be sure the compass
sensor is properly compensated
Swung and is free from varying
sources of local deviation eg tool
boxes portable radios Follow the
compass manufacturers instructions
The damping control also has
influence over the heading displays
If the heading numbers have too
much jitter push the but
ton to increase the damping level
The compass functions will only
work when a compatible electronic
compass sensor is installed If no
sensor is installed or if the data for In most ways the operation of the except that for convenience sake
mat is incorrect the 5000 will display remote is similar to the main unit you can mute an alarm ringing at
FAULT 05 Check for power and Keyboard arrangement and func any other Link instrument How
correct operation of the compass tions are nearly identical ever be sure you know why the
sensor Remember that the 550 remote alarm is sounding before disabling
has its own computer and operates it The 550 remote will display
nearly independently of the main depths to 999 feet or equivalent in
I instrument meters or fathoms has a dedi
Depth Functions The depth cated alarm mute key and will
units and the depth alarm position accept alarm settings to 900 feet
can be set at the remote to differ It operates just like the 5100 main
ent values than those at the main unit otherwise
unit Varying these settings at the Speed Functions Again the
remote will have no effect on the speed functions are independent
settings at the main instrument If of the corresponding ones at the
a depth alarm rings at the remote nav station Time Log and Aver
twill not ring at the main unit and age Speed can each be reset at
vice versa Each is the remote without affecting the 1 Depth units the units most
information on the main unit In recently selected FTIMIFM Warranty track the Link systems in
the future
for update information product
each case the procedure is the will be remembered and depth Your Datamarine Link 5000 system improvement alerts and the
same as on the main first press will be displayed in that form components are covered by a 12 mentioned users group Als
and hold then push the when the unit is turned on month limited warranty and a sub warranty and service
programs are
again sequent 4year service program All an important part of our product
function to be reset
2 Depth alarm settings will be repairs are done at the factory or at Were committed to standing behind
Damping The control retained for future use one of our service depots We will our product fixing it and
updating it
affects the damping level of the 3 The function selected for each accomplish the repair of your We need your warranty
wind as well as the speed func display will be remembered instrument within 48 hours card to help us serve you
best in the
tions For proper calculation of and will reappear automatically warranty will pro years ahead Please respond
computed functions all quantities when power is reapplied This vide for the free repairs of faulty Link
in the system are damped to the will prevent possible confusion instruments returned to us for one
same extent As a result when in case power is lost tempo year from purchase date except for
the remote damping is changed rarily due to an engine start for obvious causes like mechanical
the main unit damping is changed example abuse overvoltage etc The service
as well Damping level selection 4 The trip log and average speed program guarantees prompt repair of
and display operate as on the basis will be retained for future instruments beyond warranty at a
5100 main unit use Remember to reset these maximum charge of only 10 of the Warranty
at the start of a new trip if you
Wind Displays The central dis
do not wish to increment the
list price of the unit Please consult
the warranty statement for exact
play of wind gives the apparent
wind angle and speed When first existing log reading or average 3details PLEASE NOTE
turned on the pointer will turn future speeds with past ones Upon registration with Data
through a 360 5 Damping level marine each Link system owner will Warranty will be voided by
swing then immediately advance Lighting The main units toggle receive a service ID card with a IMPROPER FUSES
to the correct angle Wind angle switch controls system lighting special 800 telephone number for OVERVOLTAGE DAMAGE
changes will be reported with a and will turn on the remote lighting Link system service In addition that PHYSICAL DAMAGE
112 resolution to mid intensity Adjust it up or card will contain data pertaining to SALTWATER IMMERSION
Wind speed is displayed in warranty service and contacts at IMPROPER ATTEMPTS AT REPAIR
down from there with the
whole numbers in the digital dis Datamarine To receive this quick
button reference card please return your For prompt factory service mail or
play Calibration will be in knots
unless the main unit has been Weather Cover An attractive owners registration cards as soon s h i to
modified to display statute miles canvas cover is supplied with as possible after installation of your
Link System Service
per hour Should a wind fault occur your unit While the boat is not equipment
DATAMARINE and the remote no longer receive being used the cover will protect To register your warranty
53 Portside Drive
network wind information the the instrument from UV rays and please fill out and return the enclosed
Pocasset MA USA 02559
pointer will point directly astern from rain and dirt It will pay to postagepaid warranty card This will
Telephone 617 56371 51
and two dashes will appear in the replace the weather cover while help us serve you better in the future
wind speed LCD the boat is idle We at Datamarine hope to establish Include return address and
Wind fault Pointer South a fraternity of Link system users over toms and as much information as
Winter Storage If the boat is
in LCD the next decade This group will be possible about installation
laid up for any period of time
kept uptodate on new Link devel
Memory Both the main unit especially in extremely cold cli
opments Datamarine and other user REPAIRS OUT OF WARRANTY
and remotes have independent mates it will be a good idea to
do this it is vitally WlLL BE PERFORMED AT MODEST
memorys which retain certain remove the Link instruments from
important that we receive your COST FOR LABOR AND PARTS
information when the instruments the boat Store them in a safe dry
owners registration arb back at the THE INSTRUMENT WlLL BE
are turned off These memorys location away from the condensa RETURNED TO ADDRESS SPECI
factory We will not sell your name to
require no current no batteries tion and temperature extremes FIED WITH A COD CHARGE FOR
others or use it in any way you might
and will store this information which they would experience on SERVICE AND FREIGHT
object to Our main purpose is to
indefinitely the boat
Limited 12 Month Warranty Four Year Factory Service Program
Datamarine Inc of 53 Portside Drive Pocasset In consideration of the purchase of this product Datamarine
warrants to the owners of its product that such shall at any time within 4 years following the expiration of the
product shall be operative and free of defects in warranty period repair and recalibrate any product other than one
material and workmanship for 12 months after original purchase which has been altered damaged by negligent however in the event the
attached warranty card endorsed by the mishandling or improper operation for a nominal charge not to
selling dealer is not returned to Datamarine Inc at the above exceed 10 of the original retail price except that components
address within 30 days of the time of purchase the full warranty subject to constant wear installation and environmental hazards
period shall be for the 12 months after the date of manufacture This such as but not limited to flow sensors and transducers will be
warranty does not cover damage resulting from negligent provided at current published prices All such charges plus freight
installation improper operation unauthorized repair andlor or postage shall be assessed to the owner by COD return
substitution of component parts other than those provided by shipment of the repaired product The product must be returned
Datamarine Full performance expressed or implied postage prepaid to the factory for repair and should be
which can be adversely affected by installation and operating accompanied by a legible return address and brief statement of
environment are not guaranteed under this warranty malfunction Services under this program will be available at any
Any defective Datamarine product which is received by time of year and will be completed within 48 hours of receipt of
Datamarine during the warranty period will be repaired or replaced product
free of charge at the option of PROCEDURE
The product must be returned postage prepaid to the factory
for repair and should be accompanied by a legible return address
and brief statement of malfunction Services as described above will
be available at any time of year and will be completed within 48
ihours of receipt of product Components permanently installed and
contributing to the integrity of a hull need not be returned for repair
Datamarine will make every attempt to effect repairs when only the
instrument porlion of the product is returned
The foregoing shall constitute the sole and exclusive remedy
of any owner of this product for breach of warranty including the
implied warranties of and fitness IN NO WENT
OF RETAIL International Inc
53 Portside Drive
r e
Pocasset MA USA 02559 S
Telex 940445

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The information on this web site has not been checked for accuracy. It is for entertainment purposes only and should be independently verified before using for any other reason. There are five sources. 1) Documents and manuals from a variety of sources. These have not been checked for accuracy and in many cases have not even been read by anyone associated with I have no idea of they are useful or accurate, I leave that to the reader. 2) Articles others have written and submitted. If you have questions on these, please contact the author. 3) Articles that represent my personal opinions. These are intended to promote thought and for entertainment. These are not intended to be fact, they are my opinions. 4) Small programs that generate result presented on a web page. Like any computer program, these may and in some cases do have errors. Almost all of these also make simplifying assumptions so they are not totally accurate even if there are no errors. Please verify all results. 5) Weather information is from numerious of sources and is presented automatically. It is not checked for accuracy either by anyone at or by the source which is typically the US Government. See the NOAA web site for their disclaimer. Finally, tide and current data on this site is from 2007 and 2008 data bases, which may contain even older data. Changes in harbors due to building or dredging change tides and currents and for that reason many of the locations presented are no longer supported by newer data bases. For example, there is very little tidal current data in newer data bases so current data is likely wrong to some extent. This data is NOT FOR NAVIGATION. See the XTide disclaimer for details. In addition, tide and current are influenced by storms, river flow, and other factors beyond the ability of any predictive program.