Гирокомпас navigat x mk2 инструкция на русском языке

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  Northrop Grumman Sperry Marine B.V. (Representative
  Office)Woltmanstr. 19 D-20097 Hamburg, Germany

  Tel.: +49-40-299 00-0 Fax: +49-40-299 00-146 E-mail:
  [email protected]

  Operation, Installation and Service Manual

  NAVIGAT X MK2

  Digital Gyrocompass System

  Type 4991, Stock No. 74799

  056341/C, 08 May 2008

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  2008 Northrop Grumman Sperry Marine B.V.This document and the
  information herein is the intellectual property of Northrop
  GrummanSperry Marine B.V. [NGSM BV] and its associate companies and
  may not be copied or repro-duced without the express permission of
  NGSM BV.Specifications were correct at time of press but may be
  varied in accordance with NGSM BVspolicy of continuous product
  development.Any technical content should be verified with NGSM
  BV.

  Sperry Marine, with worldwide headquarters in Charlottesville,
  VA, and major engineering andsupport offices in Melville, NY, New
  Malden, England, and Hamburg, Germany, is part of theNorthrop
  Grumman Electronic Systems sector.

  Revision Record

  Rev. Date Remarks

  C 08 May 2008 Added new options (alarm mute relay, speed
  filter).

  B 17 Nov 2006 Removed gyrospere installation/service
  instructions. These are nowcontained in separate documents
  delivered with the respective gyro-

  sphere container.

  AA 07 May 2004 Initial release

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  i

  Safety Instructions

  Safety Notice Conventions

  The following safety notice conventions are followed throughout
  thismanual:

  DANGER A Dangernotice contains an operating or main-tenance
  procedure, practice, condition, state-ment, etc., which, if not
  strictly observed, willresult in injury or death of personnel.

  WARNING A Warningnotice contains an operating ormaintenance
  procedure, practice, condition,statement, etc., which, if not
  strictly observed,

  could result in injury or death of personnel.

  CAUTION A Cautionnotice contains an operating or main-tenance
  procedure, practice, condition, state-ment, etc., which, if not
  strictly observed, couldresult in damage to, or destruction of
  equip-ment.

  Note A Notecontains an essential operating or main-tenance
  procedure, condition or statement,which is considered important
  enough to be

  highlighted.

  Special safety symbols may be used in thismanual to
  indicate:

  Risk of electrical shock.Used in conjunction with a Dangeror
  Warningnotice.

  Electrical components sensitive to electrostaticdischarge.

  Used in conjunction with a Cautionnotice.

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  ii

  General Safety Information for the Operator

  WARNING Never rely on one heading source alone to navigate a
  vessel.Always confirm the plausibility of the NAVIGAT X MK 2
  heading and thespeed and position input data against all available
  aids to navigation.

  WARNING After a power-up from cold, the NAVIGAT X MK 2 requires
  a settling timeof three hours before reliable heading data is
  available.Power up the system at least three hours before leaving
  harbour.Power down the system during long docking periods only.Make
  sure that the NAVIGAT X MK 2 has settled before using its headingas
  the reference for heading control systems, RADAR, ECDIS, etc.A
  magnetic heading source should be made active only in case of
  failureof the gyrocompass(es).

  WARNING Before using this system, operators must be
  appropriately trained andfamiliar with the operating procedures and
  safety instructions containedin this manual.Keep system manuals in
  a well-known, readily available location.

  CAUTION The supporting fluid in the gyrosphere container will
  start freezing attemperatures below 0 C.The NAVIGAT X MK 2 may no
  longer be operated when the ambient tem-perature at the gyrocompass
  location falls below 10 C while the com-pass is in operation or
  when the ambient temperature falls below 0 Cwhile the compass is
  not in operation.

  CAUTION Any service work on the gyrosphere is to be carried out
  by authorizedservice personnel only.

  CAUTION Do not clean the compass housing with organic solvents,
  acetone or anyother substance which could damage or discolour
  plastic.Use only soapy water or a mild detergent to clean the
  compass housing.

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  General Safety Information for Service Personnel

  DANGER When the compass is energized, the gyrosphere operating
  voltage of100 VAC @ 337 Hz is present on the master PCB, the
  gyrosphere supplylines, and across the gyrosphere contacts.

  CAUTION The gyrosphere is always to be transported in its
  carrying box in the orig-inal transport container.Do not throw or
  drop the transport container.The transport container is to be
  transported in an upright position only.

  Carry the carrying box containing the gyrosphere by hand only
  and han-dle it with extreme care. Remove the gyroshpere from the
  carrying boxonly if required for immediate installation.

  CAUTION After power-down of the compass system, it may take up
  to 45 minutesfor the gyroscopes to stop rotating.During this time,
  the container must be handled with extreme care.Should the sphere
  touch the wall of the container, the momentum of therotating
  gyroscopes will make it topple and damage the center pin.

  CAUTION The NAVIGAT X MK2 contains electrostatic sensitive
  components.

  Electrostatic discharge may permanently damage components.

  When servicing the NAVIGAT X MK 2, take precautions to prevent
  elec-trostatic discharge. Avoid touching any of the electronic
  circuitry.

  CAUTION It cannot be guaranteed that parameter settings in the
  User and Setupmenus and the entries made in the Magnetic Compass
  Calibration tableare left intact when the software is
  exchanged.Before exchanging the system software IC, record all
  parameter settingsto be able to re-enter them manually, if
  required.

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  Contents

  Safety Instructions

  Safety Notice
  Conventions…………………………………………………………………
  i

  General Safety Information for the Operator
  …………………………………….. ii

  General Safety Information for Service
  Personnel…………………………….. iii

  Chapter 1: Introduction

  1.1 Design and Main
  Features………………………………………………………………
  1-1

  1.2 Operating Principle
  ………………………………………………………………………..
  1-2

  1.3 Example System Configurations
  …………………………………………………….
  1-3Standalone Gyrocompass/TMC System
  …………………………………………. 1-3

  The NAVIGAT X MK 2 within multicompass systems
  ……………………….. 1-3

  1.4 Technical
  Data………………………………………………………………………………..
  1-4

  Chapter 2: Operation

  2.1 Operating Conditions
  …………………………………………………………………….
  2-1

  2.2 Display and Operating Keys
  ……………………………………………………………
  2-2Control and Display Unit
  ………………………………………………………………..
  2-2

  2.3 External control devices
  …………………………………………………………………
  2-3

  2.4 Power-up Sequence
  ……………………………………………………………………….
  2-4

  2.5 Selecting the active heading source
  ………………………………………………. 2-5

  2.6 Adjusting the display
  brightness…………………………………………………….
  2-5

  2.7 Optional
  Functions…………………………………………………………………………
  2-6Muting Alarms
  Remotely………………………………………………………………..
  2-6

  2.8 Operating Menu
  …………………………………………………………………………….
  2-7Entering and Quitting the Main
  Menu…………………………………………….. 2-7

  Navigating the Menu
  ……………………………………………………………………..
  2-7

  Selecting Parameter Settings
  ………………………………………………………….
  2-8

  Editing Parameter Values
  ……………………………………………………………….
  2-8

  2.9 Selecting a Display Data Page
  ………………………………………………………..2-9

  2.10 Manual Settings Menu
  …………………………………………………………………
  2-10Manual Settings Overview
  …………………………………………………………
  2-10

  Manual Settings Parameters
  ………………………………………………………
  2-12

  2.11 User
  Setup…………………………………………………………………………………..
  2-15User Setup Overview
  …………………………………………………………………
  2-15

  User Setup Parameters
  ………………………………………………………………
  2-16

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  Chapter 3: Errors and Alarms

  3.1 Alarm Indication
  …………………………………………………………………………….3-1Audible
  Alarm
  Indication………………………………………………………………..3-1

  Visual Alarm
  Indication…………………………………………………………………..
  3-1

  3.2 Acknowledging Alarms/Muting the Audible
  Alarm………………………….3-2

  Alarm
  Acknowledge……………………………………………………………………….3-2Alarm
  Mute
  ……………………………………………………………………………………3-2

  3.3 Error messages
  ………………………………………………………………………………3-3

  3.4 Service Info Menu (Service Setup 2)
  ……………………………………………….3-5Service
  Setup 2 Access Code
  ……………………………………………………….
  3-5

  Service Setup 2
  Overview…………………………………………………………….3-6

  Service Setup 2
  Parameters………………………………………………………….3-7

  Chapter 4: Scheduled Maintenance

  4.1 Maintenance by Shipboard Personnel
  …………………………………………….4-1

  4.2 Gyrosphere Maintenance Specifications
  …………………………………………4-118-Month
  Maintenance
  …………………………………………………………………..4-1

  Five-Year
  Maintenance……………………………………………………………………4-2

  Chapter 5: Preventive Maintenance

  5.1 Protecting the Gyrosphere from Low
  Temperatures…………………………5-1Removing the container
  from the compass housing ……………………….. 5-2

  Parts, materials and tools
  required………………………………………………….
  5-2

  Procedure
  ………………………………………………………………………………………
  5-2

  Re-installing the container in the compass housing
  ………………………… 5-4

  Parts, materials and tools required
  …………………………………………………. 5-4

  Procedure
  ………………………………………………………………………………………
  5-4

  Power-up function test
  ……………………………………………………………………
  5-6

  Procedure
  ………………………………………………………………………………………
  5-6

  Chapter 6: Installation

  6.1 Mechanical
  Installation…………………………………………………………………..6-1Installing
  the Compass Housing
  ……………………………………………………..
  6-1

  6.2 Electrical
  Installation………………………………………………………………………6-2Wiring
  Up the
  System…………………………………………………………………….6-2

  6.3 Gyrosphere Installation
  ………………………………………………………………….6-2

  6.4 Initial System Configuration
  …………………………………………………………..6-3

  6.5 Alignment Error Correction
  …………………………………………………………….6-5Magnetic
  Compass Calibration
  ……………………………………………………….
  6-6

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  Chapter 7: System Configuration

  7.1 Configuration Menu (Service Setup
  1)……………………………………………. 7-1Setup
  Access
  Code…………………………………………………………………………
  7-1

  Service-Setup 1 Overview
  ……………………………………………………………
  7-2

  Service Setup 1 Parameters
  …………………………………………………………
  7-5

  7.2 Factory Settings Menu (Technical Pages)
  ……………………………………… 7-12Setup Access
  Code……………………………………………………………………….
  7-12

  Technical Pages Overview
  ………………………………………………………….
  7-12

  Technical Pages Parameters
  ………………………………………………………..
  7-13

  Chapter 8: Troubleshooting

  8.1 Troubleshooting Instructions
  ………………………………………………………….
  8-1

  8.2 Location of Parts on the Master PCB
  ………………………………………………8-2Exchangeable
  Components…………………………………………………………….
  8-3

  Connectors…………………………………………………………………………………….
  8-3

  Test Resistor /
  Trimpots…………………………………………………………………..
  8-4

  Diagnostic
  LEDs……………………………………………………………………………..
  8-4

  Chapter 9: Corrective Maintenance

  9.1 Exchanging the System Software
  …………………………………………………..9-1

  9.2 Replacing Socketed ICs
  ………………………………………………………………….
  9-2

  Appendix

  A Setup and Configuration Tables

  B Drawings

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  Design and Main Features 1-1

  Chapter 1: Introduction

  1.1 Design and Main Features

  The NAVIGAT X MK2 is a microprocessor controlled marine
  gyrocom-pass system with integrated automatic North speed error
  correction.

  The system complies with IMO resolutions A.424(IX) and A.694(17)
  andwith EN ISO 8728.

  The NAVIGAT X MK2 has been type approved by the German
  FederalMaritime and Hydrographic Agency (BSH), in accordance with
  theMarine Equipment Directive (MED) 96/98/EC, as modified by
  Directive2002/75/EC.

  The single unit design with a polyurethane hard foam housing
  allows

  the gyrocompass to be installed on any bridge. If required, an
  optionalremote operating unit may be installed.

  The unique method of supporting the gyrosphere by means of
  merebuoyancy ensures North stabilisation during short power
  failures. E.g.,after a three minute loss of power, no more than two
  degrees of devia-tion may be expected. Once power has been
  restored, the gyrocompasswill return quickly to the correct
  heading. The combined effects of thetwin rotors and the liquid
  damping system virtually eliminate latitudeerror.

  Heading is measured as a 13-bit absolute value with a digital
  shaft

  encoder. The high-speed follow-up system (follow-up speed up to
  100/s) ensures that accurate heading and rate of turn data is
  provided underall operating conditions.

  Integrated monitoring of the supply powers, gyroscope current
  and thefollow-up system ensure secure and trouble-free
  operation.

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  1-2 Operating Principle

  1.2 Operating Principle

  The north-seeking element used in the NAVIGAT X MK 2 system is
  thegyrosphere, a hermetically sealed unit with a funnel-shaped
  recess,reaching from the outer skin down to its center.Inside the
  gyrosphere, two mechanically linked gyroscopes are

  mounted with their spin axes horizontal in a carrying frame. The
  gyro-scopes are allowed to turn around the vertical, but torsion
  bands effect adefined rest position, while a mechanical linkage
  ensures that the result-ant spin vector of the gyros remains
  stationary relative to the gyro-sphere. This twin gyro arrangement
  eliminates intercardinal roll error.Once the gyros have run up to
  speed, their resultant spin vector, andwith it the sphere, settles
  in the direction of true North.

  Figure 1-1:

  The gyrosphere

  The top of the gyrosphere contains an annular damping trough,
  half

  filled with a viscous fluid. The fluid damps azimuthal
  oscillations of thegyroscope system. The oscillation period is
  tuned to the Schuler periodof 84.4 minutes, so that heading errors
  during horizontal accelerationdue to changes in speed and/or
  direction are prevented.

  The gyrosphere floats in a supporting fluid inside the
  gyrosphere con-tainer. Because the buoyancy of the sphere is a
  little greater than itsweight, a bearing cup at the bottom of the
  recess is pressed against thecentering pin and keeps the sphere
  exactly centered in the container.In order to make the gyroscope
  system pendulous, that is, to provide thegravity controlling
  moment, the gyrosphere is designed so that its cen-tre of gravity
  lies slightly below the centre of bouyancy.

  The gyroscopes are in fact squirrel-cage induction motors, which
  attaina speed of nearly 20000 rpm at a voltage of 100 VAC @ 337
  Hz.In the Mod. 10/3 container, their supply power is applied
  through theelectrolytically conducting supporting fluid, via the
  top and bottom con-tacts. In the Mod. 10/2 container, the power is
  applied via the centeringpin and the bottom contacts.

  A follow-up control circuit keeps the container aligned with the
  sphere atall times, thus heading can be derived from the containers
  orientation.While systems with the Mod. 10/3 container employ an
  optical pickoff toprovide the follow-up control signal, systems
  with the Mod. 10/2 con-tainer use a resistance bridge circuit,
  formed by the conducting pathsfrom the contact pins in the
  container, through the supporting fluid andto the equator contact
  of the gyrosphere.

  centering pin

  N gyro

  gyro linkage

  damping trough

  S gyro

  gyrosphere shell

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  Example System Configurations 1-3

  1.3 Example System Configurations

  Standalone Gyrocompass/TMC System

  As a standalone system, the NAVIGAT X MK 2 provides
  North-speederror corrected true heading as well as rate of turn
  data.

  If an electronic magnetic compass is installed, the NAVIGAT X MK
  2applies magnetic variation and distributes magnetic heading data
  toexternal equipment (TMC function).The heading diff. alarm
  function permits to monitor the differencebetween the gyro and
  magnetic heading sources.In case of failure of the gyrocompass, the
  magnetic heading source maybe activated to provide an emergency
  heading reference for repeatersand other peripheral equipment.

  Figure 1-2:

  Standalone

  Gyrocompass/TMC

  system

  The NAVIGAT X MK 2 within multicompass systems

  The NAVIGAT X MK 2 may also be used as part of a multicompass
  sys-tem in conjunction with the Compass Monitor/Heading
  ManagementSystem NAVITWIN and a Switch-Over Unit.In such a system,
  the NAVITWIN acts as the main heading source selec-tor and controls
  distribution of the compasses’ output signals via theSwitch-Over
  Unit.

  Another typical case is the retrofitting of the NAVIGAT X MK 2
  for anolder gyrocompass within an existing system.If possible, the
  existing control facilities in such a system (e.g. changeo-ver
  switches, distribution boxes etc.) will be left intact, to
  seamlessly

  integrate the NAVIGAT X MK2 into the retrofit system.

  MagneticCompass

  Position Receiver

  Speed Log

  Status Signals InROT

  Serial Repeaters

  Equipment usingserial input

  Equipment using6 step/ input

  Equipment usingFuruno AD10 input

  AnalogueR.o.T.Indicators

  Nav. DataPrinter

  Status Signals Out

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  1-4 Technical Data

  1.4 Technical Data

  Accuracies

  heading:lin. mean settle point error

  static errordynamic errordeviation after 3 min. power
  interruption

  0.1 secant latitude

  0.1 secant latitude0.4 secant latitude< 2

  Operational Characteristics

  mean setting time < 3h

  max. follow-up speed 100/s

  freedom of roll and pitch 40

  MTBF 40 000 h

  Environmental Requirements

  ambient temperature, operation 10 to +55 C

  ambient temperature, storage(without supporting fluid)

  25 to +70 C

  environmental conditions / EMC in accordance w. IEC 60945

  Protection Grade

  according to IEC 60529/DIN 40050 IP 23

  Magnetic Clearance

  to standard magnetic compass 0.6 m

  to steering magnetic compass 0.4 m

  reduced, to standard magnetic compass 0.3 m

  reduced, to steering magnetic compass 0.3 m

  Power Supply

  supply voltage main 24 VDC (18 — 36 V),backup 24 VDC (18-36 V),
  includ-

  ing automatic switchover tobackup supply in case of mainsupply
  failure

  max. ripple content backup supply 4 Vpp; extreme values may
  notexceed 36 V or fall below 18 V

  power consumption:start-upoperationeach repeater compass

  80 W45 W7 W

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  Technical Data 1-5

  Dimensions and Weight

  width 404 mm

  height 520 mm

  depth 420 mm

  weight 25 kg approx.

  Data Inputs

  magnetic heading NMEA 0183 / IEC 61162-1or PLATH protocolor
  NAVIPILOT

  position NMEA 0183 / IEC 61162-1

  speed NMEA 0183 / IEC 61162-1

  compass monitor NAVITWIN NMEA 0183 / IEC 61162-1

  Signal and Status Inputs

  speed, 200 pulse/nm connection to P.Gnd via ext. con-tact,
  momentary

  steering mode status (auto/man) connection to P.Gnd via ext.
  con-tact, latching

  ext. heading reference sel. (gyro/mag)

  connection to P.Gnd via ext. con-tact, latching

  ext. alarm acknowledge (mute) connection to P.Gnd via ext.
  con-tact, momentary

  Data Outputs

  serial repeater outputs(4 x TTL)

  NMEA 0183

  sensor data(2 x RS-422)

  NMEA 0183 / IEC 61162-1

  FAST output (RS-422) NMEA 0183 / IEC 61162-1or PLATH
  protocol

  SuperFAST output (RS-422) NMEA 0183 / IEC 61162-1or NMEA 0183 /
  IEC 61162-2or PLATH protocol

  NAVITWIN output NMEA 0183 / IEC 61162-1to compass monitor
  NAVITWIN

  NAVIPRINT output serial data to nav. data printer

  AD10 heading data output AD10 serial data and clock

  404

  520

  420420

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  1-6 Technical Data

  Signal and Status Outputs

  6 step/ output 3 phases, switched to 0V potentialif active
  (minus switching),common positive;internal supply 24 VDC, max. 18
  W

  rate of turn, analogue 0.1999.9 mV//min;max. 10 V, 10 mA

  power failure/general alarmheading difference alarm

  potential-free contact closures,each rated30 VDC/1.0 A,100
  VDC/0.3 A,125 VAC/0.5 A

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  Operating Conditions 2-1

  Chapter 2: Operation

  2.1 Operating Conditions

  The permitted ambient temperature for the operation of the
  gyrocom-pass system is -10 +55 C.

  When the ambient temperature at the gyrocompass location falls
  below

  -10 C while the compass is in operation or when the ambient
  tempera-ture falls below 0C while the compass is not in operation,
  the gyro-sphere container must be removed from the compass housing
  andstored in a place where the ambient temperature will not fall
  below 0 C.

  If no storage place is available where the ambient temperature
  will notfall below 0 C, the gyrosphere must be removed from the
  gyrospherecontainer to prevent possible damage by frozen supporting
  fluid.

  CAUTION The supporting fluid in the gyrosphere container will
  start freezing attemperatures below 0 C.The NAVIGAT X MK 2 may no
  longer be operated when the ambient tem-perature at the gyrocompass
  location falls below 10 C while the com-pass is in operation or
  when the ambient temperature falls below 0 Cwhile the compass is
  not in operation.

  CAUTION The gyrosphere may be removed from the gyrosphere
  container byauthorized service personnel only.

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  2-2 Display and Operating Keys

  2.2 Display and Operating Keys

  Control and Display Unit

  Figure 2-1:NAVIGAT X MK2

  control and display unit

  Display

  Operating Keys

  LCD Display: 4×20 character text displayIn normal operational
  mode, shows the available heading sourcesand the heading diff.
  alarm threshold.In menu mode: displays the currently active op.
  menu screen

  MENU/F1key: Calls up the main menu from normal operationalmode.
  When pressed in menu mode, returns to next higher menu

  level.When pressed simultaneously with theSHIFT key, the
  F1function isexecuted.

  Up () / F2 key: In menu mode, returns from the main menu to
  nor-mal operational mode. Within a sub-menu, scrolls up through
  avail-able pages on same menu level.When pressed simultaneously
  with theSHIFT key, the F2function isexecuted.

  Down () / F3 key: Calls up the Main Menu from normal
  operationalmode. Within a sub-menu, scrolls down through available
  pages onsame menu level.When pressed simultaneously with theSHIFT
  key, the F3function isexecuted.

  SHIFTkey: Pressed with other key to call up keys
  SHIFTfunction.

  DIM+ / RESET key: Adjust the display brightness.When pressed
  simultaneously with theSHIFTkey, the RESETfunctionis executed.

  DIM- / ENTER key: Adjust the display brightness.When pressed
  simultaneously with theSHIFT key, the ENTERfunctionis executed.

  5

  1

  2

  3

  6

  4

  7

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  External control devices 2-3

  2.3 External control devices

  Depending on the installation, external devices may be present
  whichremotely control certain functions of the NAVIGAT X MK 2:

  An external device may be used to select the active source, i.e.
  the

  heading reference to be distributed to compass repeaters,
  headingcontrol system, RADAR, ECDIS etc.).

  The audible alarm at the NAVIGAT X MK 2 the may be muted from
  aremote device, e.g. a central alarm panel.

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  2-4 Power-up Sequence

  2.4 Power-up Sequence

  The NAVIGAT X MK 2 is not equipped with a power switch. The
  gyro-compass powers up as soon as supply power is applied.

  Upon power up, the startup routine is executed:

  A startup screen is shown and a systemtest sequence is
  executed.

  When the system test has been passed, theNAVIGAT X MK 2 enters
  normal operationalmode. The display shows the heading datafrom the
  available compasses and theheading difference alarm threshold.

  The currently active heading source is indi-cated by an arrow
  symbol () next to thesources name.

  WARNING After a power-up from cold, the NAVIGATX MK 2 requires a
  settlingtime of three hours before reliable heading data is
  available.Power up the system at least three hours before leaving
  harbour.Power down the system during long docking periods only.

  Make sure that the NAVIGAT X MK 2 has settled before using its
  headingas the reference for heading control systems, RADAR, ECDIS,
  etc.

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  Selecting the active heading source 2-5

  2.5 Selecting the active heading source

  The operator may select one of the available heading sources as
  theactive source, i.e. the heading reference to be distributed to
  compassrepeaters, heading control system, RADAR, ECDIS etc.).

  Depending on the system configuration, the active heading source
  iseither selected from the NAVIGAT X MK 2 control and display unit
  (singlegyrocompass systems) or from an external device such as a
  NAVITWINcompass monitor/heading management system, a NAVIPILOT
  headingcontrol system or an external selector switch.

  2.6 Adjusting the display brightness

  To change the active heading source fromthe control and display
  unit

  Press the selector key next to the desiredsources heading
  display.

  The selected source is made active.

  Note If the system is configured for source selection from an
  external device,selection from the control and display unit is
  disabled.The active heading source can be changed in a manual
  steering modeonly.In automatic steering modes, source selection is
  disabled and an errorbeep sounds when an attempt is made to change
  the active source.

  WARNING Make sure that the NAVIGAT X MK 2 has settled before
  using its headingas the reference for heading control systems,
  RADAR, ECDIS, etc.A magnetic heading source should be made active
  only in case of failureof the gyrocompass(es).

  The brightness of the display and keypad illumination is
  adjusted via the

  DIM+/DIM- keys:

  Press the DIM+ key to increase the illumina-tion
  brightness.Press the DIM-key to reduce the illumina-tion
  brightness.

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  2-6 Optional Functions

  2.7 Optional Functions

  The following functions may be available if the system is
  equipped withthe respective external controls and configured
  accordingly.

  Muting Alarms Remotely

  On alarm, actuate the mute control at a remote device (e.g. a
  centralalarm panel). The audible alarm is muted.

  Note A remotely muted alarm remains in the pending
  (unacknowledged) state.The alarm message is shown on the display
  until the alarm is acknowl-edged at the NAVIGAT X MK 2 or the cause
  of the alarm is eliminated.

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  Operating Menu 2-7

  2.8 Operating Menu

  The data display menu as well as the manual settings, user and
  servicesetup sub-menus are accessed through a multilevel operating
  menu.

  Entering and Quitting the Main Menu

  Navigating the Menu

  In the menu mode, the operator may navigate through the menu
  usingthe F1, F2, F3, Up/Down, Dim+/Dim- and MENUkey functions.

  From the normal operational mode,press the MENUor the Downkey
  toenter the menu mode.

  The main menu screen opens.

  From the main menu screen, press theUpkey to return to the
  normal opera-tional mode.

  The NAVIGAT X MK 2 returns to nor-mal operational mode.

  Press Shift-F1, Shift-F2or

  Shift-F3to go to the respec-tive sub-menu.

  Arrow symbols (/) at theright of the window indicatethat further
  pages are availa-ble at the same menu level.

  With the Downor Upkey,scroll to the next or previous

  page respectively.

  Press the MENUkey to returnto the next higher menulevel.

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  2-8 Operating Menu

  Selecting Parameter Settings

  A number of operational and setup parameters are set by
  selecting theappropriate option from a list.

  Editing Parameter Values

  A number of operational and setup parameters are set by editing
  anumerical value.

  Flashing up/down arrow symbols to the right of a parameter
  settingindicate that a selection can be made from a list of
  options:

  With the Up/Downkeys, select the requiredoption.

  Press Shift-ENTERto confirm and store theselection.

  MENUleaves the sub-menu withoutchanges.

  A flashing box cursor indicates that a parameters value is
  editable:

  With the Up/Downkeys, edit the character atthe current cursor
  position.

  With the Dim+/Dim-arrow keys, move thecursor forward/back to
  edit the next/previ-ous character.

  Press Shift-ENTERto confirm and store thenew value.

  MENUleaves the sub-menu withoutchanges.

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  Selecting a Display Data Page 2-9

  2.9 Selecting a Display Data Page

  The Display Data menu allows the operator to select one out of
  fivepages to permanently display relevant operational data, instead
  of thenormal heading display screen.The selected page is displayed
  until another page is selected or the Dis-

  play Data mode is quit.

  From the Main Menu, pressSHIFT — F1to go to the DisplayData
  sub-menu.

  With the Up/Downkeys, selectthe required page to display

  The following data pages areavailable:

  True heading (own gyroheading);Rate of turn;Correction mode and
  value.

  Magnetic comp. heading;Magnetic variation.

  Position Mode;LatitudeLongitude (in auto mode).

  Speed Mode;Actual speed value

  Speed value used for speederror correction.

  Date (DD.MM.YY);Time (hh.mm).

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  2-10 Manual Settings Menu

  2.10 Manual Settings Menu

  The Manual Settings menu provides access to settings which the
  opera-tor may need to alter more or less frequently during normal
  operation.

  Manual Settings Overview

  Figure 2-2:

  Manual Settings

  Note In case a NAVITWIN compass monitor / heading management
  system isinstalled, the manual settings must be entered at the
  NAVITWIN.The NAVITWIN will overwrite all changes to manual settings
  enteredlocally at the NAVIGAT X MK 2 control and display unit.

  SPEED/LATITUDE

  HDG. DIFF. ALARM

  MAGNETIC VARIATION

  SPEED/LAT MODE

  BETWEEN

  MODE

  AUTOSPEED MODE

  GY1 / M

  AUTO

  AUTO

  POSIT MODE

  man. lat. value:99:99.99 N 99:99.99 S

  SPEED/LAT SET

  man. speed value:0.0 99.9 kts.

  speed/latitude input settings

  heading difference alarm threshold

  mag. variation input settings

  MAN

  MAN

  MAN

  OFF

  alarm threshold:0 99

  man. variation value:99.9 W 99.9 E

  contd. on next page

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  Manual Settings Menu 2-11

  Figure 2-3:

  Manual Settings

  (cont.d)

  NORTH SP. ERR. CORR

  SET. NAVIPRINT

  SETTINGS ROT

  ON

  OFF

  NAVIPRINT

  TIME CONST. ROT

  PAP. SPEED

  HDG

  ON

  damping time constant:0.0 10.0 s

  60 mm

  30

  OFF

  150 mm

  180

  600 mm

  north speed error correction

  nav. data printer settings

  rate of turn time constant

  contd. from previous page

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  2-12 Manual Settings Menu

  Manual Settings Parameters

  Speed/Latitude

  Hdg. Diff. Alarm

  Speed/Lat Mode

  Selects the speed and position input modes.

  Speed Mode

  Selects the speed input mode.

  Settings: AUTOSpeed data is read automatically from the serial
  data or the200 pulse/nm input

  MANThe actual speed value is entered manually

  Posit Mode

  Selects the position input mode.

  Settings: AUTOPosition data is read automatically from the
  serial data input

  MANThe actual position is entered manually

  Speed/Lat SetSets the manual input values for the speed and
  latitude.

  Values: speed: 0.0 99.9 kn

  latitude: 9000.00 N 9000.00 S

  Sets the manual input values for the speed and latitude.

  BetweenSelects the heading sources to monitor.

  Settings: GY1/M

  Monitor difference between gyro 1 and magnetic hdg.

  OFFHdg. diff monitoring is disabled

  Alarm thresholdSets the alarm threshold value.

  Value: 0 99

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  Manual Settings Menu 2-13

  Magnetic Variation

  North Sp. Err. Corr.

  Sets the magnetic variation input parameters.

  ModeSelects the magnetic variation input mode.

  Settings: AUTOMag. variation data is read automatically

  MANThe actual mag. variation value is entered manually

  Manual ValueSets the manual input value for mag. variation.

  Value: 99.9 W 99.9 E

  Selects the North speed error correction mode.

  Settings: ONAutomatic North speed error correction is
  enabled.

  OFFAutomatic North speed error correction is disabled.

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  2-14 Manual Settings Menu

  Set. NAVIPRINT

  Settings ROT

  Sets the operating parameters for the NAVIPRINT nav. data
  printer.

  NAVIPRINTTurns printing on and off.

  Settings: ONActivate output to printer

  OFFNo output to printer

  Pap. speedSets the paper feed speed.

  Settings: 60 mmprint at 60 mm/h (1 cm = 10 min.).

  150 mmprint at 150 mm/h (1 cm = 4 min.)

  600 mmprint at 600 mm/h (1 cm = 1 min.)

  Hdg.Sets the scaling of the heading graph.

  Settings: 30scale to show 30 to the left and to the right from
  the graphscentre (current print position shifts to centre when
  graph

  reaches margin)

  180scale to show 180 to the left and to the right from thegraphs
  centre (current print position shifts to the centrewhen graph
  reaches margin)

  Sets the rate of turn input parameters.

  Time constant ROTSets the damping time constant for the analogue
  rate of turn output.The larger the time constant, the less
  short-time fluctuations will bepresent in the analogue rate of turn
  output voltage.

  Value: 0.0 10.0 s

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  User Setup 2-15

  2.11 User Setup

  The User Setup menu provides access to settings which the
  operatormay need to alter occasionally.

  User Setup Overview

  Figure 2-4:

  User Setup

  ON

  OFF

  TIME

  DATE/TIME

  MODE

  AUTO

  MAN

  DATE

  dd.mm.yy(day.month.year)

  hh:mm (hours:minutes)

  SOFTWARE VERSION

  master board:nn.n

  MAG. C. CAL.TABLE

  MAG. C. CAL.TABLE

  ENTER VALUES (F1)

  corr.value:-99.9 +99.9

  hdg. display:0.0 359.9entry #:0 49

  input date/time

  software version info

  magnetic compasscalibration table

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  2-16 User Setup

  User Setup Parameters

  Date & Time

  Software Version

  Mag. C. Cal. Table

  Sets the date and time input parameters.

  ModeSelects the date and time input mode.

  Settings: AUTODate/time are read automatically from the serial
  data input

  MANThe current date and time are entered manually

  Man. DateSets the current date manually.

  Value: DD.MM.YY (current date in format day.month.year)

  Man. TimeSets the current time manually.

  Value: hh:mm (current time in format hours:minutes)

  Note If manual input is used, date and time must be set after
  each power-up.

  Displays the master board software version info.

  Settings: noneThe software version sub-menu is read-only.

  Sets the parameters for the magnetic compass calibration
  table.

  Mag. C. Cal. TableSwitches the automatic magnetic heading
  correction on or off.

  Settings: ONAutomatic correction is enabled

  OFFAutomatic correction is disabled

  Enter ValuesEnters the correction values into the magn.
  calibration table.

  Values: max. 50 pairs of heading and correction values

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  Alarm Indication 3-1

  Chapter 3: Errors and Alarms

  3.1 Alarm Indication

  Audible Alarm Indication

  Single Beep: Invalid Action

  Continuous Beeping: Pending Alarm

  Visual Alarm Indication

  In case of a pending alarm, an alarm message is shown on the
  displaywhich specifies the type of alarm present.

  Figure 3-1:

  Alarm message

  (gyro failure)

  The message remains on the screen until the operator
  acknowledges thealarm or the cause of the alarm is no longer
  present.

  A single short beep indicates that the operator attempted
  tocarry out an invalid action.This is the case, e.g. if the
  operator tries to change the headingreference in an automatic
  steering mode or to activate a head-ing source from which no valid
  data is received.

  Continuous on-off beeping indicates that a pending
  (unac-knowledged) alarm is present.Simultaneously, an alarm message
  is displayed.

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  3-2 Acknowledging Alarms/Muting the Audible Alarm

  3.2 Acknowledging Alarms/Muting the Audible Alarm

  Alarm Acknowledge

  Alarm Mute

  To acknowledge a pending alarm at the NAVIGAT X MK 2:

  Press Shift-F1.

  The alarm message is cleared and the audiblealarm is muted.

  As long as the cause of the alarm is present, thealarm remains
  active. The currently activealarms may be viewed in the error list
  in theService Setup 2.

  Note When an alarm has been acknowledged, the ext. alarm status
  outputremains active until the cause of the alarm is
  eliminated.When the cause of an alarm is eliminated, the alarm is
  acknowledgedautomatically and the alarm status is cleared.The
  NAVIGAT X MK 2 does not keep a history of past (inactive)
  alarms.

  To mute the audible alarm at the NAVIGAT X MK 2:

  Press Shift-Reset.

  The audible alarm indication is muted.

  The visible alarm indication is not cleared andthe alarm remains
  in the pending state until it isacknowledged by the operator.

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  Error messages 3-3

  3.3 Error messages

  The following table lists the error messages which may appear on
  thedisplay and in the error list when a system alarm is active.

  Table 3-1:

  error messagesMessage on

  Display

  Message in

  Error List

  Cause Corrective

  Action

  GYRO FAILURE FAILURE GYRO The system can-not providegyro
  heading.Possible causesare defects ofthe gyrosphere,the
  follow-upsystem or theshaft encoder,or a defect of

  the hard- orsoftware on themaster PCB.

  If gyro is activehdg. source,activate anothersource, if
  availa-ble.Restart thegyrocompasssystem. If theerror persists,call
  an author-

  ized SperryMarine servicestation.

  MAGN.COMPASSERROR

  FAILUREMAGN.

  Loss of mag-netic headingdata from ext.source.

  Check magneticheading sourceand interface.

  MAGN.VAR.INVALID

  MAGN.VAR.INVALID

  Loss of magn.variation data(if automaticinput active)

  Check magneticvariation sourceand interface.

  SPEEDERROR

  FAILURE SPEED Loss of speeddata from ext.source.

  Check speeddata source andinterface.

  SPEED INVALID SPEED INVALID Actual speedoutside of validspeed
  range;invalid speedwill not be usedfor North speederror
  correction

  Check speeddata source andinterface.Check currentspeed
  filterparameters inService Setup.If required,increase valid

  speed rangeand/or increasefilter time con-stant.

  POSITIONERROR

  FAILURE POS. Loss of positiondata from ext.source.

  Check positiondata source andinterface.

  HEADINGDIFF. ALARM

  HEAD. DIFFALARM

  The monitoredheadingsources differby more than

  the set alarmthreshold.

  Check headingsources todeterminecause of the dif-

  ference.

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  3-4 Error messages

  FAILURE DCMAIN SUPPLY

  FAILURE DCMAIN

  Loss of powerfrom main sup-ply.

  Check mainpower supply.

  FAILURE DCBACKUPSUPPLY

  FAILURE DCBACKUP

  Loss of powerfrom backupsupply.

  Check backuppower supply.

  RECOM-MENDEDANNUAL MAIN-TENANCE DUE!(see manual)

  OPERATIONTIME

  Alarm given atpower-up ifmore than 18months havepassed sincelast
  gyrospheremaintenance

  Acknowledgealarm. Systemwill power-upnormally. Toensure
  trouble-free operation,it is highly rec-ommended tohave mainte-

  nance carriedout every 18months.

  NT COM FAULT NT COM FAULT Loss of inputdata from com-pass
  monitorNAVITWIN

  CheckNAVITWIN andinterface

  Message on

  Display

  Message in

  Error List

  Cause Corrective

  Action

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  Service Info Menu (Service Setup 2) 3-5

  3.4 Service Info Menu (Service Setup 2)

  The Service Setup 2 provides access to system status information
  whichis used during installation and for troubleshooting
  errors.Furthermore, an option is provided to reset the system
  without cyclingthe power (warm start).

  Service Setup 2 Access Code

  To prevent inadvertent or unauthorized changes to the system
  configu-ration, all service setup menus are protected by access
  codes.

  To access the Service Setup 2:

  Press Shift-F2to select «Service Setup».

  When prompted for the setup code:

  Enter code «610 «Press Shift-ENTERto confirm the code.

  The Service Setup 2 sub-menu opens.

  Call up the Main Menu

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  3-6 Service Info Menu (Service Setup 2)

  Service Setup 2 Overview

  Figure 3-2:

  Service Setup 2

  not implemented in current software release

  operation time since last gyroshpere service (hours)

  GYROSPHERE DATA

  OP. TIME COUNTER

  DATA LIST

  TEMPERATURE: gyrosphere ambient temperature

  PH. BRIDGE: phase bridge voltageGYRO CURR.: gyrosphere
  current

  gyrosphere operational data

  operation time counte

  list of operational data

  initiate system reset

  ERROR LIST

  RESET MK 2

  error messages

  number of errors

  list of active errors

  system reset (warm start)

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  Service Info Menu (Service Setup 2) 3-7

  Service Setup 2 Parameters

  Gyrosphere Data

  Op. Time Counter

  Data List

  The Data List is not implemented in the current software
  version.

  Error List

  Reset MK 2

  Displays the gyrosphere operating data.

  Displays: TemperatureThe ambient temperature around the
  gyrosphere container.

  Ph. BridgeThe follow-up circuit phase bridge voltage.

  Gyro Curr.The gyrosphere current.

  Displays the gyrosphere operation time counter.

  Displays: Operation time in hours since last gyrosphere
  maintenance.The operation time counter is reset to zero by field
  servicepersonnel during gyrosphere maintenance.

  Displays the currently active system alarms.

  Displays: Error messagesThe display alternates through the
  message texts of allactive alarms. If no errors are present, «No
  Errors» is dis-played.

  No. of errorsDisplays the total number of active errors.

  Initiates a system resets (warm start).The warm start is
  equivalent to powering the system down and upagain, except that the
  power is not cycled.

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  3-8 Service Info Menu (Service Setup 2)

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  Maintenance by Shipboard Personnel 4-1

  Chapter 4: Scheduled Maintenance

  4.1 Maintenance by Shipboard Personnel

  For maintenance work to be carried out by shipboard personnel,
  no setmaintenance schedule is required.

  The display front plate and the compass housing should be kept
  cleanand a regular visual inspection of cables and connectors
  should be car-ried out to detect any signs of damage or
  deterioration.

  4.2 Gyrosphere Maintenance Specifications

  The gyrosphere is the only component of the NAVIGAT X MK 2
  whichrequires regular maintenance.

  18-Month Maintenance

  Sperry Marine recommends to have a regular gyrosphere
  maintenancecarried out by authorized service personnel every 18
  months. During the18-month maintenance, the gyrosphere and the
  inner surface of the con-tainer are cleaned and all fluids are
  renewed. If necessary, the centeringpin is exchanged.

  CAUTION Do not clean the compass housing with organic solvents,
  acetone or anyother substance which could damage or discolour
  plastic.Use only soapy water or a mild detergent to clean the
  compass housing.

  CAUTION Scheduled maintenance or service work on the gyrosphere
  is to be car-ried out by authorized service personnel only.

  Note If more than 18 months have passed since the last
  gyrosphere mainte-

  nance, a reminder message is displayed every time the
  gyrocompass ispowered up.This message indicates no malfunction but
  is intended to remind theoperator that the recommended maintenance
  interval has beenexceeded.When the reminder message is
  acknowledged, the gyrocompass willpower-up and commence normal
  operation. During the gyrospheremaintenance, the gyrosphere
  operation time counter is reset.

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  4-2 Gyrosphere Maintenance Specifications

  Five-Year Maintenance

  To ensure continued trouble-free operation and to minimize the
  risk offailure, Sperry Marine recommends that every five years, the
  gyro-sphere and the centring pin are exchanged by authorized
  service per-sonnel.

  Note The five-year exchange interval for the gyrosphere is to be
  regarded as arecommendation only. Under normal conditions, the
  gyrosphere is ableto operate flawlessly over a considerably longer
  period of time.

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  Protecting the Gyrosphere from Low Temperatures 5-1

  Chapter 5: Preventive Maintenance

  5.1 Protecting the Gyrosphere from Low Temperatures

  The permitted ambient temperature for the operation of the
  gyrocom-pass system is 10 to +55 C.

  When the ambient temperature at the gyrocompass’ location falls
  below

  10 C while the compass is in operation or when the ambient
  tempera-ture falls below 0 C while the compass is not in operation,
  the gyro-sphere container must be removed from the compass housing
  andstored in a place where the ambient temperature will not fall
  below 0 C.

  If no such storage place is available, the gyrosphere must be
  removedfrom the gyrosphere container to prevent possible damage by
  frozensupporting fluid.

  Removal and storage of the container as a whole (with the
  gyrosphereinstalled), as well as later re-installation of the
  container may be carriedout by shipboard personnel.

  Removal of the gyrosphere from the container and re-installation
  of thesphere into the container may be carried out by authorized
  service per-sonnel only.

  CAUTION The supporting fluid in the gyrosphere container will
  start freezing attemperatures below 0 C.The NAVIGAT X MK 2 may no
  longer be operated when the ambient tem-perature at the gyrocompass
  location falls below 10 C while the com-pass is in operation or
  when the ambient temperature falls below 0 Cwhile the compass is
  not in operation.

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  5-2 Protecting the Gyrosphere from Low Temperatures

  Removing the container from the compass housing

  Parts, materials and tools required

  a 5mm hex key

  a No. 2 Philips-head screwdriver

  Procedure1

  DANGER When the compass is energized, the gyrosphere operating
  voltage of100 VAC @ 337 Hz is present on the master PCB, the
  gyrosphere supplylines, and across the gyrosphere contacts.

  Before removing the gyrosphere container, make sure the main
  andbackup power supplies to the compass are switched off and
  safe-guarded against accidental switching-on.

  CAUTION After power-down of the compass system, it may take up
  to 45 minutesfor the gyroscopes to stop rotating.During this time,
  the container must be handled with extreme care.Should the sphere
  touch the wall of the container, the momentum of therotating
  gyroscopes will make it topple and damage the center pin.

  When the container is temporarily stored away with the
  gyrosphereinstalled, pack it into its original transport box or
  another suitable outer

  package and make sure that:- the container is stored in an
  upright position,- the temperature at the storage location cannot
  fall below 0C,- the container is not moved, tilted or subjected to
  shock.

  1. Illustrations show the Mod. 10/3 gyrosphere container. All
  instructionsequally apply to the Mod. 10/2 container.

  1. Unscrew the 5 mm hex-head screws of the compass housing
  doorand take off the door from the housing

  2. Disconnect the grounding strap between door and housing.
  Placethe door aside. If the door is put next to the housing, the
  keypadcable may be left connected to the master PCB.

  3. Unplug the gyrosphere supply andpickoff connector from its
  socket

  on the pickoff PCB.

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  Protecting the Gyrosphere from Low Temperatures 5-3

  4. Turn the bellows, until the largestof the three coupling
  seats in thebayonet collar points towards thefront of the
  housing.The seat is marked by a green doton the collar.

  5. Put both hands around the con-tainer and lift it up, so that
  the cou-pling tongues disengage fromtheir seats in the bayonet.

  6. While supporting the containerwith both palms, put the
  thumbson the rim of the collar, pull downon it and turn it to the
  left

  7. Gently lower the container. Thecoupling tongues slide down
  inthe grooves of the bayonet and thecontainer is released from the
  col-lar.

  8. Carefully remove the container from the housing and take it
  to itsstorage location.

  9. At the storage location, carefully place the container into
  its originaltransport box or another suitable outer package.

  10. Clearly label the packaged container and store it safely in
  an uprightposition, making sure that it cannot be moved, tilted or
  subjected toshock.

  11. Put the door in front of the housing and reconnect the
  groundingstrap.

  12. Fit the door back on the housing and tighten the retaining
  screws.

  13. Take the necessary precautions to make sure that the
  compassesmain and backup power supplies remain switched off while
  the con-tainer is not installed.

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  5-4 Protecting the Gyrosphere from Low Temperatures

  Re-installing the container in the compass housing

  Parts, materials and tools required

  a 5mm hex key

  a No. 2 Philips-head screwdriver

  Procedure1

  DANGER When the compass is energized, the gyrosphere operating
  voltage of100 VAC @ 337 Hz is present on the master PCB, the
  gyrosphere supplylines and across the gyrosphere contacts.

  Before installing the gyrosphere container, make sure the main
  andbackup power supplies to the compass are switched off and
  safe-guarded against accidental switching-on.

  1. Illustrations show the Mod. 10/3 gyrosphere container. All
  instructionsequally apply to the Mod. 10/2 container.

  1. At the storage place, carefully unpack the gyrosphere
  container andtake it to the compass location.

  2. Unscrew the 5 mm hex-head screws of the compass housing
  doorand take off the door from the housing

  3. Disconnect the grounding strap between door and housing.
  Placethe door aside. If the door is put next to the housing, the
  keypadcable may be left connected to the master PCB.

  4. Gently turn the bellows, until the largest of the three
  coupling seats

  in the bayonet collar points towards the front of the housing.
  Theseat is marked by a green dot on the collar.

  5. Place the gyrosphere containerinto the compass housing with
  thelargest of the three couplingtongues located directly below
  thegroove in the collar. The tongue ismarked by a green dot on the
  con-tainer

  6. Put both hands around the con-tainer and lift it into the
  collar, so

  that the coupling tongues slideinto the corresponding grooves
  inthe bayonet.

  7. While supporting the containerwith both palms, put the
  thumbson the rim of the collar, pull downon it and turn it to the
  right

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  8. Gently lower the container. Thecoupling tongues engage into
  theirseats in the bayonet and the con-tainer locks in place by its
  ownweight.

  9. Plug the gyrosphere supply andpickoff connector into its
  socket onthe gyrosphere container.

  10. Check that the gyrosphere con-tainer turns freely around the
  verti-

  cal.

  11. Put the door in front of the housing, so that the keys can
  be oper-ated. If the keypad or display has been disconnected during
  gyro-sphere installation, reconnect it.

  12. The compass is now ready to be put into operation.Leave the
  housing door open to observe the settling of the gyro-sphere and
  proceed now with the power-up function test.

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  5-6 Protecting the Gyrosphere from Low Temperatures

  Power-up function test

  To verify the correct operation of the re-installed gyrosphere,
  the settlingbehaviour of the compass is to be observed.

  Procedure

  1. Power up the compass system.

  In case of a first-time installation where the basic
  configuration has

  not been carried out yet, alarms will be given at this
  point.Alarms caused by missing input data or an incomplete system
  con-figuration may be safely acknowledged to continue with the
  power-up function test.

  2. Observe the settling of the gyrosphere:

  The gyro motors will create a spinning noise which slowly
  butconstantly rises in pitch until the rotors reach their final
  speed.

  The follow-up system will turn the container quickly around
  thegyrosphere until the optical pickoff locks onto the motion ofthe
  sphere. From then on, the container will engage in a
  slowoscillatory motion around the vertical, following the motion
  ofthe sphere.

  The amplitude and speed of this motion will steadily
  decreaseuntil the sphere finally settles.

  DANGER When the compass is energized, the gyrosphere operating
  voltage of100 VAC @ 337 Hz is present on the master PCB, the
  gyrosphere supplylines and across the gyrosphere contacts.When
  operating the compass while the housing is open, do not touchthe
  master PCB, the connecting cables to the gyrosphere container orany
  conductive components on the container.

  A startup screen is shown and a systemtest sequence is
  executed.

  When the system test has been passed,the compass enters normal
  operationalmode. The display shows the headingdata from the
  available compasses andthe heading difference alarm threshold.

  CAUTION Should a GYRO FAILURE alarm be given at power-up, the
  compass isnot working properly.De-energize the system and visually
  check the connections to the gyro-sphere, the follow-up step motor
  and the shaft encoder.If the failure reoccurs when the compass is
  powered-up again, the instal-lation has not been carried out
  correctly or the gyrosphere is defective.

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  Protecting the Gyrosphere from Low Temperatures 5-7

  3. During the settling phase, periodically call up the
  gyrosphere datasub-menu from the Service Setup 2 (code 610), to
  observe the gyro-sphere current:

  If 45 minutes after power-up, a gyrosphere current above 300 mA
  is

  displayed in the gyrosphere data sub-menu, the value should
  beconfirmed by measuring directly at the 1 gyro current test
  resistoron the master PCB.

  The AC-voltage in mA across the test resistor equals the
  gyrospherecurrent in mA.

  4. After a settling time of at least 4 hours, verify that the
  compass hassettled to the correct heading:

  Directly after power-up, the gyro-sphere current should not
  exceed550 mA. The current will graduallyfall while the gyrosphere
  settles.

  Within 45 minutes after power-up,the gyrosphere current must
  havedropped below 300 mA.

  CAUTION If 45 minutes after power-up, the gyrosphere current has
  not droppedbelow 300 mA, the gyrosphere is not working properly.If
  visual inspection reveals no obvious cause of malfunction, the
  gyro-sphere is to be regarded defective and must be replaced.

  Note To verify the compass heading, the actual true heading of
  the vesselshould be known with an accuracy of 0.1.

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  Mechanical Installation 6-1

  Chapter 6: Installation

  6.1 Mechanical Installation

  The NAVIGAT X MK 2 gyrocompass system comprises the
  compasshousing complete with installed base plate assembly and
  master PCB,the gyrosphere container, the gyrosphere and the
  installation andreplacement parts kit.

  The gyrosphere is contained in a carrying box, which is packed
  in atransport container. This transport container is completely
  suitable fortransport by air, sea, rail and road.

  Until installation, the carrying box containing the gyrosphere
  is to bestored in its original transport container. Upon
  installation, the carryingbox with the gyrosphere is to be removed
  from the transport containerand is to be carried by hand directly
  to the place of installation.

  Installing the Compass Housing

  The compass housing is to be attached to a level surface, e.g. a
  floor orconsole base by means of six M10 bolts or welding studs (to
  be suppliedby the shipyard). At the location of the compass, proper
  ventilation mustbe ensured and sufficient space provided for the
  housing to be openedand maintenance work to be carried out.

  For the amount of space required, the attachment points and the
  posi-

  tion of the cable inlets, refer to dimension drawing
  4991-0112-02.

  In the horizontal plane, the compass may be installed at any
  angle withrespect to the vessels longitudinal axis.Alignment error
  (i.e. the angle between the compass and the vesselslongitudinal
  axis) is corrected electronically by setting the alignmenterror
  correction value in the Service Setup 1.

  CAUTION The gyrosphere is always to be transported in its
  carrying box in the orig-inal transport container.Do not throw or
  drop the transport container.The transport container is to be
  transported in an upright position only.

  CAUTION Carry the carrying box containing the gyrosphere by hand
  only and han-dle it with extreme care. Remove the gyroshpere from
  the carrying boxonly if required for immediate installation.

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  6-2 Electrical Installation

  6.2 Electrical Installation

  Wiring Up the System

  Wire up the system according to the connection diagrams and
  other rel-evant documents provided.

  If installation-specific connection diagrams have been provided
  for agiven system, these supersede any connection information
  contained instandard connection diagrams.

  Ship’s cables are directly connected to screw-down terminals on
  themaster PCB.

  Insert the ship’s cables through the inlets at the sides of the
  compasshousing. Remove the outer cable covers, draw back the cable
  shieldsand fasten the cables with clamps or tie-wraps to the
  threaded studs ofthe inlet plates. Refer to dimension drawing
  4991-0112-02.

  Keep all wires running inside the housing as short as possible.
  Avoid to

  run wires from one side of the housing to the other. Route wires
  con-necting to TB1 or TB2 through the inlets on the left hand side
  of thehousing and wires connecting to TB3 through the inlets on the
  righthand side.

  6.3 Gyrosphere Installation

  When the compass housing has been mounted and the system is
  wiredup so far that supply power is available, works should
  continue with theinstallation of the gyrosphere into the gyrosphere
  container and themounting of the assembled container in the
  compass.

  Alternatively, the installer may wire up the system completely
  and carryout the initial system configuration before the gyrosphere
  is installed.

  The gyrosphere installation and service instructions are
  contained in aseparate document delivered with the gyrosphere.

  DANGER When the compass is energized (main and/or backup supply
  present),the gyrosphere operating voltage of 100 VAC @ 337 Hz is
  present on themaster PCB, the gyrosphere supply lines and across
  the gyrosphere con-tacts.When wiring up the system, make sure the
  compass’ main and backuppower supplies are switched off and
  safeguarded against accidentalswitching-on.

  CAUTION The gyrosphere may be installed by authorized service
  personnel only.

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  Initial System Configuration 6-3

  6.4 Initial System Configuration

  To make the system fully functional, the configuration
  parameters needto be set to the required values in the Service
  Setup 1. Additionally, theapplicable standard operational settings
  should be entered in the Man-ual Settings menu.

  If a magnetic heading source is connected to the NAVIGAT X MK 2,
  themagnetic compass calibration procedure should be carried out
  during asea trial, as described under «Magnetic Compass
  Calibration»below6.5.

  To configure the system:

  1. Check that the wiring has been carried out completely. All
  devicesconnected to data or signal in- and outputs should be
  operative.

  2. Energize the system at the vessel’s switch and fuse unit.A
  startup message is displayed and the initial selftest is
  executed.

  3. Go to the Service Setup 1.

  4. Select the required system type and heading reference
  selection set-tings.

  5. In dual or triple gyro systems, assign the required compass
  ID.

  6. Select the required data formats for all devices connected to
  the datainputs. In G systems, disable the magnetic heading
  input.

  7. Select the required data output formats and IEC 61162/NMEA
  proto-col standard setting.

  8. Check that the min./max. limits for the speed filter are well
  outsidethe possible range of the vessels operating speed. In
  high-speedcraft, the max. speed value will have to be
  increased.

  To finalize the installation:

  1. Set the operational parameters the Manual Settings menu to
  suita-ble values. Wherever possible, automatic data input should
  beselected in preference of manual input.

  2. Enter the current date and time in the User Setup menu.

  DANGER When the compass is energized (main and/or backup supply
  present),the gyrosphere operating voltage of 100 VAC @ 337 Hz is
  present on the

  master PCB, the gyrosphere supply lines and across the
  gyrosphere con-tacts.When operating the compass while the housing
  is open, do not touchthe master PCB, the connecting cables to the
  gyrosphere container orany conductive components on the
  container.

  Note If the initial system configuration is carried out before
  the installation ofthe gyrosphere, the system will raise a gyro
  failure alarm at power-up.The alarm may be safely acknowledged at
  this point to continue with theinitial configuration.

  Note Do not change the factory-set shaft correction angle in the
  Service Setup1. The alignment error correction may be set to an
  approximate value atthis point. The existing alignment error,
  however, must later be deter-mined exactly and corrected as
  required.

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  6-4 Initial System Configuration

  3. After configuration, function-check the system with all
  connectedequipment in operation. Use the test mode in the Service
  Setup 1 tocheck the heading output to serial and 6 step/ repeaters
  and the ana-logue rate of turn output. The test mode is functional
  even if thegyrosphere is not yet installed.

  4. If not yet installed, the gyrosphere must now be installed
  and the

  proper function of the compass verified.

  5. To bring the gyrocompass system into working order, the
  existingalignment error must now be determined exactly and the
  error cor-rection applied as described under «Alignment Error
  Correction»below6.5.

  6. If required, determine the correction values for the magnetic
  head-ing and enter the magnetic compass calibration table as
  describedunder «Magnetic Compass Calibration»below6.5.

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  Alignment Error Correction 6-5

  6.5 Alignment Error Correction

  In order to obtain correct heading data, the existing alignment
  error (i.e.the angular difference between the compass orientation
  and the vessel’sfore-and-aft axis) must be determined and the
  required correctionapplied. Alignment error is 0 if the sides of
  the compass housing run

  exactly parallel to the vessels longitudinal axis and the back
  of thehousing points dead ahead. The alignment error correction is
  carried outelectronically by setting the correction value in the
  Service Setup 1.

  To carry out the alignment error correction:

  1. Determine the existing alignment error by comparing the
  compassheading with the vessel’s true heading. The true heading
  must beknown to an accuracy of at least 0.5.

  2. In the Service Setup 1, select the align error correction
  sub-menu.

  compass orientation

  vessel’s fore-and-aft axis

  alignment error

  CAUTION The compass must have been in continuous operation for
  at least 4 hoursbefore the alignment error can be determined
  accurately.

  If bearing repeaters are used to determine the true heading,
  these mustbe properly aligned to the vessel’s fore-and-aft
  axis.

  3. Enter the required correctionvalue. The correction
  valueequals the alignment error withthe sign reversed.

  Example:The vessels true heading is123.0, the compass
  displays123.4, the required correctionvalue is thus 0.4.

  Note After correction of the alignment error, the compass is to
  display the ves-sel’s true heading to an accuracy of at least
  0.5.

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  6-6 Alignment Error Correction

  Magnetic Compass Calibration

  Ideally, the magnetic heading displayed at the NAVIGAT X MK 2
  wouldexactly match the indication of the steering magnetic compass
  (at amag. variation of 0.0).In practice, however, deviations will
  occur between the steering mag-netic compass heading and the
  heading data transmitted by a fluxgatesensor or an electronic
  compass, as displayed at the NAVIGAT X MK2.

  The NAVIGAT X MK 2 automatically corrects such deviations if a
  calibra-tion table has been stored and calibration is activated in
  the User Setup.

  Calibration Procedure

  The magnetic heading calibration is a two-step procedure.

  First, the existing deviations between the indication of the
  steering mag-netic compass and the magnetic heading displayed at
  theNAVIGAT X MK2 are determined. This requires that the vessel is
  swungvery slowly through a full circle so that for each 10 of
  magnetic com-pass heading (0, 10, …, 350) the corresponding
  display value isobtained.

  Then, the resultant correction values are calculated and entered
  in the

  magnetic heading calibration table at the NAVIGAT X MK 2. The
  calibra-tion table stores up to 50 entries (cal. no.s), each of
  which assigns acorrection value to a given magnetic heading (0, 10,
  …, 350).

  Note If magnetic heading is received from an already calibrated
  source, suchas a NAVITWIN, NAVIPILOT or a self-calibrating
  electronic compass, cal-ibration at the NAVIGAT X MK 2 is not
  required and must be disabled.

  CAUTION The magnetic heading calibration corrects deviations due
  to the com-

  bined effects of the magnetic environment and the particular
  sensorbeing used.Therefore, a new calibration must be carried out
  when:- the steering magnetic compass is exchanged or newly
  adjusted,- the magnetic heading sensor is exchanged.

  It is strongly disapproved to use a true heading source, e.g. a
  gyrocom-pass, as the calibration reference.Also, it should not be
  attempted to correct residual deviations of a prop-erly adjusted
  magnetic compass by means of the calibration table.

  CAUTION The magnetic compass used as the calibration reference
  must be prop-erly installed and adjusted.The procedure should be
  carried out in calm seas only.

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  Alignment Error Correction 6-7

  Determining magnetic heading correction values

  1. Make sure that the magnetic variation is set to 0.0 in the
  ManualSettings menu.

  2. Make sure that the calibration is disabled (setting OFF
  selected inthe User Setup / Magn. Cal. Tab.)

  3. Select a manual steering mode.

  4. Commence a continuous, very slow and steady turn. The
  vesselmust be swung through one full circle (360) at least.

  5. While the vessel is turning, com-pare the indication at the
  steer-ing magnetic compass with themagnetic heading values shownon
  the NAVIGAT X MK 2 display.

  At every full 10 of steeringmagnetic compass heading (0,

  10, … , 350), note the displayvalue.

  6. Enter the observed display val-ues in the magnetic heading
  cal-ibration table (blank formincluded in the appendix of
  thismanual).

  7. Calculate the required correc-tion value for each
  headingvalue.

  The correction value is the offsetwhich must be applied to
  agiven display value in order toobtain the steering magneticcompass
  heading.

  Example:steering magnetic compassheading = 0,display value =
  0,8,correction value = 0,8.

  0

  Mag. Compass

  Heading

  Mag. HDG

  Display

  (uncalibrated)

  Correction

  Value

  10

  0

  Mag. Compass

  Heading

  Mag. Hdg.

  Display(uncalibrated)

  Correction

  Value

  10

  0

  Mag. Compass

  Heading

  Mag. Hdg.

  Display(uncalibrated)

  Correction

  Value

  10

  mag. hdg. display

  = correction value

  mag. compass hdg.

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  6-8 Alignment Error Correction

  Storing the magnetic heading calibration table

  1. Call up the User Setup and go to the Magn Cal Tab
  sub-menu.Press Shift-F1. (enter values)The calibration table entry
  sub-menu is shown.

  2. To enter the previously determined correction values:

  a) Using the Up/Downand Dim+/Dim-keys,enter the respective
  heading value.

  b) Press Shift-ENTERto confirm the value.

  c) Using the Up/Downand Dim+/Dim-keys,enter the corresponding
  correctionvalue.

  d) Press Shift-ENTERto confirm the value.

  3. To enter another pair of values, press Shift-F2.The table
  index count in the first line is increased by 1.Repeat the
  procedure from step 2.a) above until all correction valueshave been
  entered.

  4. Press MENUto quit the table entry sub-menu.

  To scroll through the list of entries, press Shift-F2.or
  Shift-F3respectivelyfrom within the table entry sub-menu

  To delete a pair of values, if required, go to the calibration
  table entrysub-menu and twice press Shift-RESETfollowed by
  Shift-ENTERto clear theheading and correction value entries.

  0

  Mag. Compass

  Heading

  Mag. Hdg.

  Display

  (uncalibrated)

  Correction

  Value

  10

  Note The calibration table is stored in the system’s permanent
  memory. If thecomplete set of table entries is to be altered (e.g.
  when a new magneticheading sensor has been fitted or the steering
  magnetic compass hasbeen newly adjusted), delete the old entries
  from the table first.

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  Configuration Menu (Service Setup 1) 7-1

  Chapter 7: System Configuration

  7.1 Configuration Menu (Service Setup 1)

  The Service Setup 1 provides access to the system parameters
  whichconfigure the NAVIGAT X MK 2 according to the requirements of
  theinstallation at hand.The Service Setup 1 also provides a test
  mode to check the proper func-tion of the serial and 6 step/
  heading outputs and the analogue rate ofturn output.

  Setup Access Code

  To prevent inadvertent or unauthorized changes to the system
  configu-

  ration, setup menus which are to be accessed by service
  personnel onlyare protected by access codes.

  To access the Service Setup 1:

  Press Shift-F2to select «Service Setup».

  When prompted for the setup code:

  Enter code «600 «Press Shift-ENTERto confirm the code.

  The Service Setup 1 sub-menu opens.

  Call up the Main Menu

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  7-2 Configuration Menu (Service Setup 1)

  Service-Setup 1 Overview

  Figure 7-1:

  Service Setup 1 INTERFACE I/O

  MAG.HDG.INP.

  NMEA-HDM

  interface configuration

  SPEED INPUT

  200 Pulse/NM

  NMEA

  POS INPUT

  NMEA-GLL

  NMEA-GGA

  SENS.D.M.OUTP.

  NMEA-HCHDM

  NMEA-HCHDT

  NMEA-HCHDG

  S/FAST M.OUTP.

  NMEA-HCHDM

  NMEA-HCHDT

  MAGN. VARIATION

  NMEA-HDG

  NMEA-RMA

  NMEA-RMC

  NMEA SUPERFAST

  4800 BAUD

  9600 BAUD

  19200 BAUD

  33 Hz 38400 BD

  NMEA-HCHDT

  PLATH

  TxD NMEA FAST

  NMEA

  HCHDT

  SENS.DATA 2

  SENS.DATA

  NAVIPRINT

  HDT/ROT

  PLATH

  NMEA-HCHDT

  NMEA-HDG

  PLATH-MAGN

  NAVIPILOT

  COMP.MONITOR

  OFF

  contd. on next page

  50 Hz 38400 BD

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  Configuration Menu (Service Setup 1) 7-3

  Figure 7-2:

  Service Setup 1

  (contd.)

  IEC 61162-1

  NMEA 0183

  sc. factor: 0.1 999.9mV//min

  ANALOGROT OUTP.

  PROTOCOL TYPE

  zero offset: -999 +999mV

  corr. value: -179.9 +180

  corr. value: -179.9 +180

  SYSTEM TYPE

  ALIGN ERR. CORR.

  SHAFT COR. ANGLE

  SYSTEMG

  GM

  COMP.MON

  AUTOPILOT

  EXT.SEL.

  HDG. SEL

  CDU 1

  contd. from previous page

  system type / hdg. reference selection

  alignment error correction

  shaft encoder correction angle

  NMEA output protocol standard

  settings analog ROT output

  contd. on next page

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  7-4 Configuration Menu (Service Setup 1)

  Figure 7-3:

  Service Setup 1

  (contd.)

  sc. factor: 0.1 999.9mV//min

  zero offset: -999 +999mV

  time const.: 0.0 99.9s

  TEST MODE

  rate of turn: -999 +999/min

  CHANGE SETTINGS

  headingvalue: 0.0 359.9

  indicator/repeater test mode

  ID-No. 1

  ID-No. 2

  ID-No. 3

  ON ALL ALARMS

  GEN. ALARM SETUP

  NAME OF GYRO

  ON FATAL ALARMS

  gyro ID setting

  conditions for actuation

  ofgeneral alarm relay

  contd. from previous page

  K1 MUTE/HDG-DIFF

  SPEED FILTER

  HDG-DIFF

  MUTE

  alarm relay K1 functionality

  speed filter settings for

  error correction

  speed min. : -99.9 +99.9kn

  speed max.: -99.9 +99.9kn

  t.const.: 0 99s

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  Configuration Menu (Service Setup 1) 7-5

  Service Setup 1 Parameters

  Interface I/O

  Configures the in- and output interfaces.

  Mag Hdg. Inp.Configures the magnetic heading input.

  Settings: NMEA-HDMThe input reads the NMEA $—HDM sentence at
  the NMEAmagn. interface

  NMEA-HCHDTThe input reads the NMEA $HCHDT sentence at the
  NMEAmagn. interface

  NMEA-HDGThe input reads the NMEA $—HDG sentence at the
  NMEAmagn. interface

  PLATH-MAGNThe input reads magnetic heading from the PLATH
  binarydata protocol at the NMEA magn. interface

  NAVIPILOTThe input reads magnetic heading from the
  NAVIPILOTrepeater protocol at the NMEA magn. interface

  COMP. MONITOR

  The input reads magnetic heading (NMEA) at the CompassMonitor
  interface

  OFFThe input is disabled

  Speed InputConfigures the speed input.

  Settings: 200 Pulse/NMSpeed is computed from pulses at the 200
  p./NM interface

  NMEAThe input reads speed from an NMEA sentence received atthe
  serial speed data input 1.

  Pos. InputConfigures the position input.

  Settings: NMEA-GLLThe input reads the NMEA $—GLL sentence

  NMEA-GGAThe input reads the NMEA $—GGA sentence

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  7-6 Configuration Menu (Service Setup 1)

  Sens. D. M. Outp.Selects the output sentence format for magnetic
  heading at the sensordata outputs

  Settings: NMEA-HCHDMMagnetic heading is sent using the NMEA
  $—HDM sentence

  with talker ID HC

  NMEA-HCHDTMagnetic heading is sent using the NMEA $—HDT
  sentencewith talker ID HC

  NMEA-HCHDGMagnetic heading is sent using the NMEA $—HDG
  sentencewith talker ID HC

  S/FAST M. Outp.Selects the output sentence format for magnetic
  heading at the FASTand SuperFAST data outputs

  Settings: NMEA-HCHDMMagnetic heading is sent using the NMEA
  $—HDM sentencewith talker ID HC

  NMEA-HCHDTMagnetic heading is sent using the NMEA $—HDT
  sentencewith talker ID HC

  Magn. VariationSelects the sentence format for automatic
  magnetic variation input

  Settings: NMEA-HDGMagnetic variation is read from the NMEA
  $—HDG sentenceat the serial data magn. interface

  NMEA-RMAMagnetic variation is read from the NMEA $—RMA
  sentenceat the currently active position interface

  NMEA-RMCMagnetic variation is read from the NMEA $—RMC
  sentenceat the currently active position interface

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  Configuration Menu (Service Setup 1) 7-7

  NMEA SuperFASTConfigures the SuperFAST serial data output.

  Settings: 4800 BaudThe output transmits all available data in
  NMEA format at4800 Bd. (standard according to IEC 61162-1)

  9600 BaudThe output transmits all available data in NMEA format
  at9600 Bd. (non-standard)

  19200 BaudThe output transmits all available data in NMEA format
  at19200 Bd. (non-standard)

  33 Hz 38400 BdThe output transmits all available data in NMEA
  format at38400 Bd. (high-speed according to IEC 61162-2)The update
  rate for the HDT sentence is 33 Hz.

  50 Hz 38400 BdThe output transmits all available data in NMEA
  format at38400 Bd. (high-speed according to IEC 61162-2)The update
  rate for the HDT sentence is 50 Hz.

  NMEA-HCHDTThe output transmits magnetic heading only, using
  theNMEA $HCHDT sentence at 4800 Bd.

  PLATHThe output transmits heading and rate of turn data,
  using

  the PLATH binary protocol at 9600 Bd.

  TxD NMEA FASTConfigures the FAST serial data output.

  Settings: NMEAThe output transmits all available data in NMEA
  format at4800 Bd. (standard according to NMEA / IEC 61162-1)

  HCHDTThe output transmits magnetic heading only, using theNMEA
  $HCHDT sentence at 4800 Bd.

  HDT/ROTThe output transmits the active heading and rate of
  turndata only, using the NMEA $—HDT and $—ROT sentences at4800
  Bd.

  PLATHThe output transmits heading and rate of turn data,
  usingthe PLATH binary protocol at 9600 Bd.

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  056341/C NAVIGAT X MK 2

  7-8 Configuration Menu (Service Setup 1)

  Analog ROT Outp.

  Protocol Type

  System Type

  Sens. Data 2Configures the Sens. Data 2 output.

  Settings: SENS. DATAThe output mirrors the Sens Data 1
  output

  NAVIPRINTThe output provides data for a NAVIPRINT nav. data
  printer

  Configures the analogue rate of turn output.

  Sc. FactorSets the scaling for the output.

  Value: 0.1 999.9 mV//min.

  Zero OffsetSets the zero-point offset for the output.

  Value: -999 999 mV

  Selects the conformance level for NMEA outputs

  Settings: IEC 61162-1NMEA outputs conform strictly to IEC
  61162-1. Proprietaryoutput sentences start with $PPLA…

  NMEA 0183NMEA outputs use the older form of the proprietary
  nav.status data sentence, $PPNSD.

  Configures the system type and the heading selector device.

  SystemSets the system configuration

  Settings: GSingle gyrocompass system: the control and display
  unitshows own gyro heading only; the heading source selectionand
  heading difference alarm functions are not available.

  GMGyro-/Magnetic compass system: the control and displayunit
  shows own gyro and magnetic compass headings;heading source
  selection and heading difference monitoringfunctions are available
  for sources G and M.

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  NAVIGAT X MK 2 056341/C

  Configuration Menu (Service Setup 1) 7-9

  Align Err. Corr.

  Shaft Cor. Angle

  Gen. Alarm Setup

  Hdg. Sel.Selects the heading source selector device to use.

  Settings: CDU 1Standalone system: the active heading source is
  selected atthe control and display unit

  Comp. Mon.Multicompass system with Compass Monitor/Heading
  Man-agement system NAVITWIN: the active heading source isselected
  at the NAVITWIN

  AutopilotGyrocompass/Autopilot system: the active heading
  sourceis selected at the autopilot (NAVIPILOT V, ADII or V HSC)

  Ext. Sel.The active heading source is selected using an
  externalselector switch

  Sets the alignment error correction value

  Settings: -179.9 +180.0

  Sets the shaft encoder correction value

  Settings: -179.9 +180.0

  Selects in which cases the General Alarm relay is actuated.

  Settings: On all alarmsThe relay is actuated whenever an alarm
  condition exists.

  On fatal alarmsThe relay is actuated only in case of fatal
  alarms. A fatalalarm exists when the gyrocompass can no longer
  provideits own heading data. Loss of external data and the
  headingdifference alarm are non-fatal alarm conditions.

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  7-10 Configuration Menu (Service Setup 1)

  Name Of Gyro

  Test Mode

  Sets the compass ID.

  Settings: 1Standalone single gyro or main gyro in multiple
  gyrocom-

  pass system.

  2Backup gyro in a dual or triple gyrocompass system.

  3Backup gyro in a triple gyrocompass system.

  Activates the output test mode

  Rate of TurnSets the rate of turn value and turn direction for
  the test mode

  Settings: -999 +999 /min

  Change SettingsAccesses the analogue ROT output settings

  time const.: 0.0 99.9 ssc. factor: 0.1 999.9 mV//minzero offset:
  -999 +999 /min

  Note The Change Settings sub-menu provides quick access

Sperry Marine NAVIGAT X MK2 — гирокомпас Sperry Marine, имеющий сертификаты РРР и РМРС, прошедший соответствующие испытания. Гирокомпас снабжен дисплеем и блоком управления. Отличается высокой скоростью починки, надежностью, высоким классом защиты. Может быть установлен на палубе и в кабине. Стабилизация гирокомпаса занимает до трех минут. Не требуется установки дополнительного модуля для коррекции ошибок скорости.

Гироскопический компас Sperry Marine NAVIGAT X MK2 рассчитан на полуторогодичный интервал технического обслуживания и сорок тысяч часов работы.

Причины купить Sperry Marine NAVIGAT X MK2:

• Сертификат РМРС и РРР.
• Отработка до 100 градусов/сек.
• Короткое время починки.
• Блок управления с дисплеем.
• Подходит для высокоскоростных судов.

Чтобы купить гирокомпас Sperry Marine NAVIGAT X MK2 или уточнить стоимость оборудования, обращайтесь к менеджерам нашего магазина по телефонам, указанным на сайте.

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