Simrad GC80 Compact MK2, User Manual

Page: 81 / 156

INSTALLATION
67 988-12720-002
If there is any difference between the Gyro bearing and the confirmed
external reference that cannot be corrected by adjusting the mechanical
location of the Master compass, an offset value may be inserted in the
GC80/85. This value is entered by using the Extension menu as follows:
1 Activate the Extension menu by pressing and holding the SET
button and the
ACK/ENT
button simultaneously for at least 3
seconds.
- Main category A-1 will be displayed.
2
Press the
DISP
button once to display main category
A-2
.
3 Press the SET button to enter the sub-category 2.1.o .
4
Use the
ARROW
buttons to increase or decrease the offset
parameter value.
Note! To correct for +1.5°, press the ARROW UP button until the display shows
1.5°.
To correct for -1.5°, press the ARROW DOWN button until the display
shows 358.5°!
5
Confirm the new value by pressing the
ACK/ENT
button, or reject
the changes by pressing the SET button. The display will return to
sub-category
2.1.o
.
6
Exit the Extension menu by pressing and holding the
SET
and
ACK/ENT buttons simultaneously for at least 3 seconds.
For further information about the Extension menu, refer
Using the
Extension menu from page 71 onwards.
6.9 Configuring the Dual function
When each Gyro compass is started and configured according to the
description on the previous pages, the Dual function should be
configured.
POWER
1 Start the function by pressing the POWER button on the Change
over panel.
The button is recessed into the front panel, and a pen or a blunt tool
must be used to activate the button.
The display shows product name and software version for PCC and
SCOIF boards:
HDM220
P:V1.02 C:V1.02
followed by:
HDM220
by Simrad