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' Autohelm Raymarine: St50 Plus Wind Wind Speed St50 '



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       Distributed by



 Any reference to Raytheon or
RTN in this manual should be
  interpreted as Raymarine.
The names Raytheon and RTN
       are owned by the
     Raytheon Company.
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                 WlND & CLOSE
                 HAULED/WIG
..                Operation and
                   installation   *
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ackage Contents
           The following items are included in the ST50 Plus Wind package:
            1 . ST50 Plus Wtnd control head
            2 . Fixing studs (2 offI
            3. Thumb nuts (2 oftI
            4. Fitting template
            5. Power cable
            6. Masthead transducer
            7 . Control head cover
            8. Junction box
            9. Operation and Installation handbook
            10. Worldwide Service Centre handbook
             11. Warranty document
contents
                                                                                                1
                            .........................................................................
           Chapter1:ContmIHeadlnstallation..                .......................................          .3
                 1.1 Sing ...........................................................................         3
                   1.2 Mounting Procedure ........................................................            4
                   1.3 Power Supply (stand-alone operation) ..................................                .6
                   1.4 Power Supply (SeaTalk operation) .......................................                6
                   1.5 Connection of Separated Instruments ..................................                 .7
                    1.6 Ring Connection ..............................................................         8
                    1.7 Connection to SeaTalk Compatible Autopilots ....................... .8
           Chapter2:Transd~lnstaUation ............................................                            9
                    2.1 Connection to the Control Head ........................................... 9
                    2.2 Masthead Transducer Installation ........................................ 9
           Chaptw3:FaultFindingandMaintenance                             ................................   11
                    3.1 Fat&Finding.. ..............................................................         .ll
                    3.2 Maintenance ................................................................         .12
           chapwkoperation                 ...........................................................        13
                    4.1 True/ApparentWlnd Selection .......................................... 14
                    4.2 Illumination ..................................................................       14
           Chapter 5: CODE Lock Security .............................................                        15
                    5.1SecurityCode ..............................................................            15
            Chapter 6: Calibration ..........................................................                 17
                    6.1 Initial Calibration ............................................................      18
                    6.2Extended Cabration ......................................................              20
            Chapter7:GeneralSpecitication ............................................                        23
            Chapter8: CloseHauled)AlG ..............................................                         .25
                    8.1 Package Set .................................................................         25
                    8.2 Operation .................................................................... 26
                                                                                                          ,-SC
                    * 3 ,",-+&+&. . e... A h"&.+n--..n~ .-. ........................................... ..L"
                    ".~,II~~,,""",,U,,",",Ul,,~~,l"ll\r~
Introduction
               The ST50 Plus Wind instrument features a 360 degree apparent wind scale
               and a sensitive yet stable needle drive that delivers accurate information under
               even the most demanding conditions.
               The unit can be configured to operate as a master or a dedicated repeater unit.
               When used as a master the unit displays data received directly from the
               masthead transducer, whereas repeater mode displays wind information
               already on the SeaTalk bus.
               These instruments also incorporate a security feature to protect units
               mounted in vulnerable areas, such as the cockpit, helm or mast.
               Thank you for purchasing an Autohelm product. May we take this opportunity
               to wish you years of trouble free operation.
Chapter 1: Control Head Installation
                      1lOmm (4.33in)           38.75mm (1.5in)
                   r-1                            I~_24mm10.!35ini




                                                                 1lOmm
                                                                 (4.33ird




1.1 siting
              The ST50 plus Wind is designed for above or below deck installation
              where it is:
               l   Easily read by the helmsman
               l   Protected against physical damage
               l   At least 230mm (9in)from a compass
               l   At least 500mm (2Oin) from radio receiving equipment
               l   Accessible from behind for ease of installation and cable running.
               CUiOll:
               To prevent moisture forming on the display window, the unit
               `breathes'through a small vent in the cable boss. Therefore, the
               control head must be sited where the rear case is protected from
               contactwithwater.
               The rear case is fitted with a foam gasket to form a water-tight seal between     Bracket Mounting
               the instrument and the selected installation face.
                                                                                                         The ST50 Plus Wind can, as an alternative, be bracket mounted using the
                                                                                                         Autohelm Mounting Kii.




                                                                                                         NO@.?:
                                                                                                         Because the instrument breathes through the vent in the rear case, this bracket
.2 Mounting Procedure                                                                                    is for interior use only.
                1 . Make sure ibatthe selected location is clean, smooth and flat.
                                                                                                 Flush Mounting
                2. Apply the seffadhesiie template (supplied) to the selected location and
                                                                                                         A flush mounting kii is available for installations where a flush mount is required
                   mark the centres for the fixing studs (21 and the cable boss (1).
                                                                                                         or more desirable. Full installation instructions are provided with the kit.
                3. Drilltio 4mm(5/32in) clearance holes for the fixing studs (2) through the
                   bulkhead. Remove the template.
                4. Cut the clearance hole for the cable boss (1) using a 50mm (2ir-r) diameter
                   cutter.
                5. Screw the two fixing studs (2) into the control head.
                6. Pass the SeaTalk cable and transducer tails through the cableboss (1)
                   clearance hole.
                7. Assemble the control head to the bulkhead and secure from behind using
                     the thumb nuts (3).
3 Power Supply (stand-alone operation)                                                            1.5 Connection of Separated lnstnments
                                                                                                                   Separated instruments can be connected using one of the range of SeaTalk
                                                                                                                   Extension Cable. These cables are supplied with a SeaTalk connector fitted to
                                                                                                                   each end. A junction box can be used to join the cable if it is cut for easier
                                                                                                                   routing or shortening.
                                                                                                                    if preferred, any 2 core, screened cable conforming the following specification
                                                                                                                    may be used instead of the SeaTalk cable.
                                                                                                                    l       22 AWG, 2 core screened cable with a minimum copper area of 0.5mm2.
                               5 Amp circuit breaker


                      12v supply




                1 . Connect the 2m (6ft.I power supply cable to the distribution panel.
                2 . Cut the cable to length and connect the red wire totbe +12V terminal and
                    screen to the OV terminal.
                                                                                                                                                                                   Yellow
                3. Cut back and insulate the yellow wire.                                                                                                                      r        1
                4. Protectthe circuitwith a 5Acircuitbreaker.
                                                                                                                    I I           Junction
                                                                                                                                                 I\ 1
                                                                                                                                                              '
                                                                                                                    1 1           box
                Note:
                Longer runs to the power supply can be made using the 9m (3Oftl SeaTalk
                Extension Cable (D131).
                                                                                                                                    `-1 Screen-J L Red -I Ucreen                                          1

 . Power Supply (SeaTalk qperation)
                                                                                                                     I  I
                                                                                                                                                                      I                                   I

                                                                                                                        I                                                                         "llll       i
                 All instruments in a SeaTalk system receive power and information from the
                 SeaTalk bus. Each instrument has two SeaTalk connectors (3 pin) on 15Omm
                 (6in) tails. To supply power and information to the instrument simply plug the
                 adjacent instrument tails into the ST50 Plus tails.

                                                  To transducer
                                                      .r a ,




                           SeaTalk tails        SeaTaik    tails   ~,,3i
                                                                                                  cTllapm2:Twm



                                                                                                  Chapter 2: Transducer Installation
             Installations with a large number of instruments on a SeaTalk bus may require
             a second riigmain connection to the power supply breaker to prevent
                                                                                                  2.1 Connection to the Control Head
             excessive voltage drops. Whether a second ring main is required can be                                 The ST50 Plus Wind is supplied with a transducer cable tail and connector
             determined from the following:                                                                         which simply plugs into the 30m f10Ofbiransducer cable.
             Cable run upto 1Orn (33ft)
                                                                                                  2.2 Masthead Transducer Installation
             Single connection:        13 instruments maximum

                                                                                                                                                                     n
              Secofd connection:       26 instruments maximum
              Cable runupto 20m (66ft)
              Single connection:       7 instruments maximum
              Second connection:       13 instruments maximum
              The second ringmain should be connected to the spare lead on the last
              instrument in the chain and directed back to the circuit breaker.

Connection to SeaTalk Compaljble Autopilots
              lf the installation includes a SeaTalk compatible Autopilot fhe ST50 instru
              ments may be connected to the SeaTalk bus at any point. No independent
              connection to the 12V power supply is necessary as the instruments receive
                                                                                                                    For best performance the mounting block must be fixed to a horizontal
               power from the Autopilot course computer.
                                                                                                                    surface. lfthe mast top is not horizontal, make up a wedged packing piece (1).




                To autopilot
                SeaTalk BUS
                Connection

                                                                          To any further
                                                                          ST50 Instruments
                                                                          or Autopilot
                                                                          Control Units
                                                                                         D1134-




                                                                                                                     1 . W~the~readedendofthemountingblock(2)facingfoMlards,markthe
                                                                                                                         position of the two self-tapping screws.
                                                                                                Chapter 3: Fault Finding and Maintenance



          2. Drill two holes using the 4mm (5/32in) drill bii (supplied).                       Chapter 3: Fault Finding and Maintenance
          3 . Apply sealing compound to the bottom of the mounting block (2).
          4.   Secure the mounting block to the mast top using the two screws (4).              3.1 Fault Finding
          5. Tighten the locking ring (3) securely by hand.                                                            All Autohelm products are, prior to packing and shipping, subjected to
                                                                                                                       comprehensive test and quality assurance programmes. However, if a fault
Cabling                                                                                                                arises with the ST50 Plus Wind, the following table will help to identify the
                                                                                            f
          1 . Cut the cable so that there is sufficient length to run from the masthead                                probable cause and provide the most likely cure.
              iransducer to the below deck junction box.                                    I                           Fault                    Cause                     Action
          2. Feed the cable down the mast -if the mast is deck stepped the cable                                                                 No supply.                Check supply.
                                                                                                                        Instrument display
             should be passed through the deck using a proprietary deck gland.                                          blank.
                                                                                                                                                                           Check cabling and
          3 . To allow for unstepping, connect the cable to the junction box close to its
                                                                                                                                                                           security of SeaTalk
              entry into the vessel.                                                                                                                                       connectors.
          4. Run the cable from the junction box back to the control head.
                                                                                                                                                                           Check fuse/breaker.
          5. Connect the control head and masthead transducer cable tails together.
                                                                                                                                                                            Return unit for repair.
                                                                                                                        CL is displayed when      CODELOCK security        Correct code number
                                                                                                                        unit is powered on.       system has been          must be transmitted
                                                                                                                                                  activated.               before unit will operate
                                                                                                                        No exchange of           SeaTalk cabling            Check security of
                                                                                                                        information between      problem.                   SeaTalk connectors.
                                                                                                                        SeaTalk instruments fie,
                                                                                                                        illumination levels).                               Remove instruments one
                                                                                                                                                                            by one to isolate faulty
                                                                                                                                                                            unit.
                                                                                                                        Failure of a group of  SeaTalk                      Check security of
                                                                                                                        instruments in SeaTalk cabling/connector            SeaTalk connectors
                                                                                                                        chain.                 problem.                     between functioning and
                                                                                                                                                                            non-functioning
                                                                                                                                                                            instruments.
                ST50 plus Wind & Close Hauled,MWG         Operation and Installation Handbook




! Maintenance                                                                                    Chapter 4: Operation
     Instrument                                                                                               The ST50 Plus Wind can be used as a standalone unit or, when connected
                                                                                                              to other SeaTalk instruments, part of a fully integrated instrumentation
                Certain atmospheric conditions may cause condensation to form on the
                                                                                                              system. This integrated system can then be linked to any of the Autohelm
                control head window. This will not harm the instrument and can be cleared by
                                                                                                              SeaTalk compatible autopilots.
                increasing the illumination setting to Level 3.
                                                                                                              When the unit is powered-up apparent wind speed and angle or true wind
                Chemical and abrasive materials must not be used to clean the ST50 Plus
                                                                                                              speed and angle will be displayed, depending on the last selection prior to the
                Wind instrument; if it is dirty, clean with a soft, damp cloth.
                                                                                                              power being turned off.
     Transducer                                                                                                If the < > key is pressed while in this mode, the TRUE or APP (apparent)
                Apply silicone grease to the mounting block and transducer contacts every                      legend will flash to indicate a maximum recorded reading. Also, a 1 second
                season.                                                                                        press and hold of this button will return the display to the current reading.

                Always remember to remove the masthead transducer when stepping or
                unstepping the mast.

     Cabling
                Examine all cables for chafing or damage to the outer shield and, where
                necessary, replace and resecure.

     Advice
                For advice, or further information regarding the installation of this product,
                please contact the Autohelm product Support Department or your own
                National Distributor.
               ST50 Plus Wind 81 Close Hauled,NMG           Operation and installation Handbook




True/Apparent Wind Selection                                                                             Chapter 5: CODE Lock Security
               PressCAL momentarily to alternate (toggle) between true or apparent wind.
               Once selected a solid marker appears above the selection.                                 5.1 Secubty Code
                                                                                                                            The ST50 Plus range of instruments is equipped with a security code feature




                                                                                             I
                                                                                                                            (called `CODE Lock') to protect your system against possible theft. Entered
                                                                                                                            using the keypad on digital instruments, this is a four figure number of your
                                                      CAL                                                                   choice that can be entered at every power-up or, alternatively, transmitted
                                                                                                                            automatically on the SeaTalk bus when there is a secure belowdecks master
                                                                                                                            instrument.
                                                                                                                            The analogue ST50 Plus Wind will only respond to transmissions on the
                                                                                             D                              SeaTalk bus -a security code cannot be entered from this unit. Once a security
                                                                                                                            code has been transmitted to this unit itwill not operate until the correct code
                     arent wind speed and direction               True wind speed and direction
                                                                                                  0246                      number has been received from the master instrument.
               Note:                                                                                                        Please refer to a digital instrument handbook for complete details on the
               If vessel speed is not available on the SeaTalk bus when true is selected, the                               CODE Lock security system.
               LCD will display a series of dashes and the pointer will continue to show the
               apparentwind direction.

Illumination
               The ST50 Plus Wtnd has three levels of illumination plus off.
                1 . PressCAL for 1 second to display the current illumination level.



                                                                                                                                Correct security code received        incorrect security code or
                                                                                                                                                                            master missing       DLlll




                2. PressCAL within 8 seconds to selectthe required level: L3 High, L2
                   Medium, Ll Low and LO off.
                Note:
                The LCD display will return to normal operation 8 seconds after the last key
                press.
Cha@rG:-                                                                                      17




Chapter 6: Calibration
              The ST50 Plus Wind must be calibrated before it is used for navigational
              purposes. Also, as it leaves the factory the instrument is setwith units in knots,
              zero wind angle off set, and damping set at 4 seconds. These settings can be
              adjusted as described in the following sections.
                                                                                                 cThpterS:-                                                                               19




Initial Calibration                                                                                    Windspeed Unit Selection
                                                                                                                1.   Press and hold CAL until Ul (Knots) or U2 (Metres/secondl is displayed.
      Windvane Alignment
                 Before the unit is used for navigational purposes the masthead transducer
                 must be accurately aligned to thevessel. Before this procedure is carried out
                 the windvane should be linearised as follows.
                 1 . Powerup lhe ST50 Plus Wind instrument.
                 2. Tumthevessel through two complete circles, making sure that the
                    windvane remains in line with the wind -the instrument will automatically
                    linearise the windvane.
                 Alignment                                                                                      2. Press CALwithin 8 seconds to change the windspeed units selection.
                  1. Press and hold CAL for 2 seconds until CO is displayed by the LCD.




                                                                                                                 3. After 8 seconds the wind instrument returns to normal operation.
                  2. Press < > to move the pointer to the correct wind angle.




                      -                  WIND



                  l   Press < > once to move the pointer by 1 degree.
                  l   Press < > for 1 second to move the pointer by 10 degrees/second.
                  NOk
                  The LCD will now display the applied correction.
                  3. Press and hold CAL for 2 seconds to exit and store windvane alignment.
                                                                                          Chapter   6:   Calibration




Extended Calibration                                                                                     Extended Calibration Notes
                                                                                                                       Boat Show Mode
                                                                                                                       Boat show mode `S' is a dealer demonstration program only. Under no
                                                                                                                       circumstances must this program be engaged when this unit is installed on
                                                                                                                       your vessel.   display must, therefore, always be set to `SO' (inactive).
                                                                                                                        r\ firen w--..L
                                                                                                                       l3ulkdEgle Damping
                                                                                                                       Apparent wind angle damping is identified by an upper case `H' and a number
                                                                                                                       between 1 and 9 (seconds).
                                                                                                                       Apparent Wind Speed Damping
                                                                                                                       Apparent wind speed damping is identified by an upper case `J' and a number
                                                                                                                       between 1 and 9 (seconds).
                                                                                                                       True Wind Speed Damping
                                                                                                                       True wind speed damping is identified by a lower case `c' and a number
                                                                                                                       between 1 and 9 (seconds).
                       APPARENT WIND                                                                                   True Wind Angle Damping
                          DAMPING
                                                                                                                       True wind angle damping is identified by a lower case `d' and a number
                                                                                                                       between 1 and 9 (seconds).

                       APPARENT WIND
                       SPEED DAMPING




                         TRUE WIND
                       SPEED DAMPING




                         TRUE WIND
                       ANGLE DAMPING




              The options in extended calibration are changed using the < > rocker key.
ST50 plus Whd & Close Ifaulad~G Operadon   and lnsta~ladm Handbook




                                                                     Chapter 7: General Specification
                                                                                   Dimensions:            110x11omm(4.33x4.33m)
                                                                                   Power supply:          10to16v
                                                                                   Power consumption:     70ma (normal) lOOma (illumination on)
                                                                                   Temperaiure range:     oto7odeg.c
                                                                                   PQparentwind speed:    Oto99knotsorme~es/sec
                                                                                   Apparent wind angle:   Oto18Odegreesportorstarboard
                                                                                   calculations:          TruewindangleOto18Odegreesportor
                                                                                                          Starboard
                                                                                                          Truewindspeedknotsormetres/sec
                                                                                                          Maximum wind speed, apparent or true
                                                                                   UIitS:                 software   programmable
                                                                                   Damping:               ltol5seccxlds
                                                                                   Repeater capability:   Software   programmable
                                                                                   Im:                    3k?velsplusoff
    Chapter8: Close Hauled/VMG
                      The ST50 f%s Close Hauled,AMG provides an expanded close hauled
                      display~2oto6oqonthedial.whenboatspeedinformationisavailableonthe
                      SeaTaikbustheLCDprovidesacontinuousreadoutofVelociiMadeGood
                      WAG).




    8.1 Package Set
/
                      lheST5OPlusCloseHauled/VMGpackagecomprisesofthefollowingitems:
                      1. ST5OPlusCloseHa&QVh4Gcontrolhead
                      2. Fixing studs
                      3. Thumbnuts
                      4. Ftingtempbte
                      5. Operation and installation handbook
                      6. WoddwideServiceCentrehandbook
                      7. Warrantydocument
    _           .:.-!
.           ..:.                             8.2 Operation
                                                              ThelefthandbuttonQamp)isusedtotumtheillwninationonandoff,whilethe
                                                              rigMhandbuttonisadummywithoutany~on.
                                                              There are four ilhnination settings: L3 0&jhtestI, L2, Ll and LO (off).

                                             8.3 lnstaMion and Maintenance
                                                              Control head installation and maintenance procedures are identical to the Wind
                                                              unitPleaserefertotherelevantsectionsin~shandbodc.

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