JRC Alpatron AlphaMidiCourse, Installation And Operation Manual

Page: 40 / 82

Figure 26: Start Heading
Set Start Heading:
1. Press switch
▲,
or
▼.
2. Press switch ACK/ENT to confirm.
The display indicates the Gyro Compass True Heading and the Master Compass turns to the entered heading.
Note When the system starts from the heading when the last azimuth operation was completed, setting
of the "start heading" is not necessary, but pressing ACK/ENT switch is. If not pressed, this system
automatically proceeds to the next sequence after 3 minutes.
2.5.4 Set Latitude Input System
• CAUTION - Setting Latitude Input
• Change of the latitude input system, or a large change of latitude value may cause a large change in the
True Heading. When on automatic steering, first turn the steering mode of the automatic steering system to
"MANUAL" to prevent a large change of course. Confirm the area around the ship is clear and turn to "AUTO"
steering again.
• CAUTION - Setting Latitude Input
• When an alarm regarding GPS (alarm code "c" or "d") is activated and the Gyro Compass' True Heading has
not been determined, first turn the steering mode to "MANUAL", or "Non Follow Up", then determine the True
Heading, because wrong heading information (repeater signal and serial signal) may be sent out.
• CAUTION - Setting Latitude Input
• When "GYRO" is selected for the latitude input system, latitude is automatically updated by the ship's speed
and the Gyro Compass True Heading. (When the ship's speed input system is "MANUAL", it is not updated
automatically.) During navigation, confirm once every two hours that the ship's actual latitude coincides with
the indicated latitude.
• CAUTION - Setting latitude input
• To complete a setting, always press ACK/ENT switch (4) to confirm. Changed setting is not updated unless
confirmed with ACK / ENT switch (4).
1. Press DISP switch to display a setting, see example
INFO:
Figure 27: Example setting
2. Press SET switch to display selection.
3. Press switch
▲,
or
▼
to select GPS or GYRO.
Every time the
▲,
or
▼
are pressed the display blinks alternately GYRO and GPS, see figure Latitude Input..
40 | Operation