User manual VDO COMPASS

[. . . ] Please take the time to completely study this manual. Your VDO Kienzle agent will be pleased to help you if, thereafter, you still have questions or problems. Yours sincerely VDO Kienzle Vertrieb und Service GmbH © Copyright by VDO Kienzle 1998 All rights reserved 24 SAFETY Safety instructions Please respect all instructions of this manual. All texts marked with this symbol should have your particular attention. They are indications of particular importance for the operation of the system and for your safety. The use of the compass system does not relieve you of the responsibility for your ship, and requires good seamanship. [. . . ] The indication corresponds to the active mode (1 or 2) when the power 267 S 270 supply was shut off. The pushbutton toggles between both indicating modes. The indicating instrument must be in course indication mode to indicate a specific course as the desired course. Set the ship to the desired course and push the button. The current course is stored as the desired course, and the pointer moves to center position (deviation 0°). Each deviation from the desired course is indicated by the analog pointer (3° port in this case). 29 COMPENSATION Automatic compensation of the VDO Compass All on-board iron masses of a ship are more or less magnetic and influence the compass. This effect must be compensated in a fluid compass as well as in a fluxgate compass. On conventional fluid compasses this requires the services of a qualified specialist. On the VDO Compass with its automatic deviation compensation you can easily and reliably perform this adjustment yourself. As supplied the VDO Compass behaves like a normal, non-compensated fluid compass. Perform the automatic compensation during a circular course with calm sea, at a sufficient distance to port installations and magnetic disturbances (such as steel bridges, sheet piling, other ships). The diameter of the circle should be five or six times the ship length, the speed adapted to complete one circle in about 3 minutes. No valid course is indicated by the instrument during the compensation. Perform the compensation as follows: Start the circular course and switch the power supply on while keeping the button pushed. The display indicates , , OFFSET". OFFSET Relase the button when , , OFFSET" is displayed. After some seconds the local compass deviation is indicated (setting see page 32). OS 000 After another 5 seconds the display automatically changes to , , CAL". Push the button during , , CAL" until , , CAL1" is displayed. The pointer moves to the , , CAL" position. CAL Push the button CAL 1 (Note: you have about 5 seconds to start the "CAL" function, as this function is automatically exited after this time. ) 30 COMPENSATION The automatic compensation runs. Continue the circular route until the display indicates " --- ". --Now start another circular route in the opposite sense. Push the button until the display indicates , , CAL2". CAL 2 Continue the circular route until the compensation is automatically ended. After successful compensation the desired course is indicated (267° or 270° in the example). 267 or s 270 For your own safety you should verify the indication by several true observations on various courses (north, east, south, west). [. . . ] 90 mm Never use steel screws for the installation (magnetism). The sensor must be installed on a horizontal surface in horizontal position. The marking bar must be parallel to the ship axis, directed to the bow. The automatic compensation must be repeated after changing the cargo. 37 INSTALLATION Electrical Installation System power supply Connecting cable Compass sensor - indicator 8 4 3 2 5 1 Illumination S2 F2 S1 F1 Legend of the circuit schematic page 20 38 + INSTALLATION Connection of a secondary indicating instrument Install the power supply to the second instrument in the same way as for the first one (see page 38). [. . . ]