NORTHROP GRUMMAN Sperry Marine NAVIGAT X MK 2, Assembly Instructions Manual

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NAVIGAT X Mk 2 056341 Rev. AA
2: Operation Page 2-3
2.4 Selecting the Heading Reference
The operator may select one of the available heading sources as the heading
reference for the devices connected to the gyrocompass system (e.g. autopilot,
repeaters etc.). The selected heading reference is indicated by an arrow symbol
(>) in front of the corresponding heading value in the display.
2.4.1 Selection from the Control and Display Unit
2.4.2 Selection from the Compass Monitor
In multicompass systems with the Compass Monitor NAVITWIN III, the Com-
pass Monitor is usually configured as the main heading selector unit.
2.4.3 Selection via external selector switch
Use the external selector switch to select the heading reference.
In systems equipped with an ext. selector switch, heading selection via the Con-
trol and Display Unit(s) or the Compass Monitor is disabled.
Note
Heading reference selection is permitted in manual steering mode only.
In autopilot steering mode, the heading reference cannot be changed.
While the heading display screen is shown:
Press keys simultaneously to select the Gyro.
Press keys simultaneously to select the magnetic compass.
At the Compass Monitor, press key to select Gyro 1.
At the Compass Monitor, press key to select Gyro 2.
At the Compass Monitor, press key to select magnetic compass.
Note
In systems equipped with the Compass Monitor, heading selection via the com-
passes’ Control and Display Unit(s) is disabled.