User manual LINEAR DESIGN SA-8000

[. . . ] It must not be reproduced in whole or in part, except under an agreement with the consent in writing of Simrad Ltd. Contents CONTENTS Part 1 Part 2 Part 3 Part 4 Part 5 Part 6 Appendix A Introduction Operation Installation Setting Up Fault Finding Maintenance Received NMEA 0183 Messages Part 1 Introduction CONTENTS 1. 1 1. 2 1. 3 1. 4 The Dataline-X System Dataline-X COMPASS Specification Dataline Heading Sensor Specification Robertson RFC250 Heading Sensor Specification 1. 1 The Dataline-X System The Dataline-X System, as its name implies, uses a single cable to carry both power and data around the vessel to each instrument. This is done using a NMEA 0183 serial digital communication link, which is an established industry standard. Because of this, instruments from other manufacturers may be interfaced to the Dataline-X System - assuming that they have a NMEA output or input. This User Guide describes the Navigation System Repeater digital display, known as Dataline-X COMPASS, used within the Dataline-X System. [. . . ] The lighting is illuminated when setting the contrast to highlight the display. Press both buttons together, and hold for more than 3 seconds, until 'rEd', 'Grn', or 'YEL' is shown on the display. Press the LOCK button twice until the LCD indicates the current contrast level as 'LCd2' (or 'LCd1'). Page 24 Part 4 Setting-Up 3. Select the required LCD contrast level, either 1 or 2, by pressing both buttons together. Return to the main display by pressing the HEADING button three times to select the Calibration Mode End Screen, and then pressing both buttons together. Page 25 Setting-Up 4. 6 True / Magnetic Headings and Bearings Selection Part 4 The displayed heading and bearings may be set to reference either Magnetic or True North. Press both buttons together, and hold for more than 3 seconds, until 'rEd', 'Grn', or 'YEL' is shown on the display. 2. Press the LOCK push-button three times until the LCD indicates the current selection as (a distorted) 'MAG' (or 'truE'). Select the required heading reference, either Magnetic or True, by pressing both buttons together. Return to the main display by pressing the HEADING push-button four times to select the Calibration Mode End Screen, and then pressing both buttons together. 4. 7 Magnetic Variation Entry As a default the Magnetic Variation compensation on the COMPASS is turned Off, and it will only read messages that contain the correct data, either Magnetic or True. This is the `safest' setting because an incorrect Variation setting will not give false or erratic data. However if it needs to be compensated again due to movement of metal or magnetic objects in its vicinity then press both buttons. The LCD will show 'Hdg', and then after a short time it Page 27 Setting-Up Part 4 should show 'HdG0' to indicate that the sensor is no longer compensated and is ready to be compensated again. 5. If the LCD shows 'HdG0' then it is not compensated, and is ready to be compensated, so continue with the steps below: a. Place the vessel in a position where it can be swung through a full 360 degrees. Align the vessel to approximately 270 degrees. It must not be at a heading of below 180 degrees. The LCD will show 'HdG ', and then after a short time it should change to 'HdGi' to show that the process has been initiated. If it is desired to stop the process press both buttons again. Begin swinging the vessel, either by hand or by motoring circles. The rate of rotation is not critical, but about one minute per revolution is suitable. The movement should be smooth, with a minimum of roll and acceleration. d. 6. [. . . ] The external alarm sounder is not connected to the Databox properly. The external alarm sounder is not suitable. Action Check that the desired alarm is turned on and has the correct value. Check the alarms' connections to the Databox. [. . . ]