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CLIPPER

MARINE

STEERING

COMPASS

STEER

INC

DEC

ILLUM

CLIPPER

COMPASS

243

6

TRUE

1
2
3
...
»

Summary of Contents for CLIPPER

Page 1: ...CLIPPER MARINE STEERING COMPASS STEER INC DEC ILLUM CLIPPER COMPASS 243 6 TRUE ...

Page 2: ......

Page 3: ...INSTALLING THE DISPLAY NORMAL OPERATION CHANGING THE BACKLIGHT SETTING CHANGING THE DAMPING ASSISTED STEERING SETTING THE DESIRED HEADING SWITCHING ASSISTED STEERING OFF HEADING ALARM SETTING OR STOPPING THE ALARM 1 1 1 1 2 2 3 3 4 5 5 5 TABLE OF CONTENTS PAGE ...

Page 4: ...NETIC VARIATION MAGNETIC OR TRUE READOUT SETTING THE STEERING SENSITIVITY COMPASS ERROR CORRECTIONS SETTING THE COMPASS RING SETTING THE COMPASS COMPENSATION VALUES HEADING ADJUSTMENT REPEATER FACILITY 6 6 7 7 8 9 9 10 10 PAGE ...

Page 5: ...ally amidships that minimises lateral accelerations due to pitch and roll Avoid mounting the sensor high above the water line because doing so also increases pitch and roll accelerations The sensor is waterproof to CFR 46 standard Ensure the sensor does not become submerged Position the sensor unit and mark and drill pilot holes for mounting screws to allow the sensor to be rotated to align it exa...

Page 6: ...be correct until the Compass alignment is done see Engineering below A typical display is shown on Figure 2 CHANGING THE BACKLIGHT SETTING Backlighting is provided to allow the unit to be seen at night The backlit area is restricted in the top corners of the display to concentrate the lighting in the areas of interest see Figure 2 The brightness of the backlighting is adjusted by pressing the ILLU...

Page 7: ...ine at all times When the vessel s heading is within the pre set error limits the dead ahead indicator is lit to show that all is well see Figure 3 and no steering adjustment is required Steering chevrons light whenever the heading error is greater than a pre set value see Figures 4a and 4b The factory default setting for the error value is 3 but the setting can be adjusted when in Engineering mod...

Page 8: ... Vessel to the desired heading and press STEER to log that heading The display changes as shown on Figure 5 The logged heading is the heading shown when the STEER button is FIRST pressed The dead ahead symbol indicates that the vessel s heading is within the error setting The size of the error setting can be changed only in Engineering page 6 STEER INC DEC ILLUM 204 TRUE 3 Lubber Line Dead ahead w...

Page 9: ...rrecting the heading error or by pressing INC and DEC together to switch it off or by disengaging Assisted Steering by pressing STEER SWITCHING ASSISTED STEERING OFF At any time while Assisted Steering is operating pressing STEER switches it off Pressing STEER again switches it back on again but with the reference heading updated to the heading which is displayed when STEER is pressed This facilit...

Page 10: ...ed below if magnetic bearing readings are required Any of the following settings can be done when in Engineering If more than one different setting is to be done it is necessary only return via the En display between different adjustments or settings as described below ADJUSTING MAGNETIC VARIATION The Earth s magnetic variation varies from year to year and from place to place The appropriate varia...

Page 11: ...ning on the power to put the unit into the Engineering mode Press STEER and INC together to switch between Magnetic and True display of the compass readings When True is selected TRUE is displayed and the variation shown is used to correct the readings made by the sensor When Magnetic is selected MAG is displayed as shown on Figure 7 In Magnetic indication mode the variation value is ignored If it...

Page 12: ...able error is always 13 times the step size shown Press STEER to return to engineering En displayed for two seconds again If it is desired to end Engineering adjustments press ILLUM to return to normal heading indication COMPASS ERROR CORRECTIONS In common with all magnetic compasses the presence of magnetic objects in the vessel distorts the earth s magnetic field nearby and can affect the accura...

Page 13: ...compass ring if the magnetic deviation is changed during a voyage or from year to year the original setting of the Compass ring remains correct Accurately point the vessel to True or Magnetic North Either MAG or TRUE is displayed to remind the user which physical alignment of the vessel is to be used Put the unit into Engineering mode and then press the three keys STEER INC and DEC together It is ...

Page 14: ...kes in un compensated magnetic readings from the sensor unit and transmits the compensated if the compass has been swung heading and the magnetic variation stored in the unit in a standard NMEA 0183 HCHDG string 5 Press INC to advance the display by 45 and then continue the sequence at instruction 3 until 315 has been logged 6 When all the errors have been logged Press INC and DEC together to retu...

Page 15: ......

Page 16: ... prudently and check its operation from time to time against other data Inspect the installation from time to time and seek advice if any part thereof is not fully seaworthy Nasa Marine Ltd warrants this instrument to be substantially free of defects in both materials and workmanship for a period of one year from the date of purchase Nasa Marine Ltd will at its discretion repair or replace any com...

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