Simrad GC80 Instruction Manual download pdf (Page 36)

Simrad GC80/GC85 Compact Gyro Compass

28 20221511 / C

2 If the tilt angle is incorrect, weight disks must be adjusted

by moving weights from one side to the other. After

adjustments, wait for 2 minutes before the tilt angle

verification is repeated.

Caution The sensitive element must have equal number of weight disks

on both weight points on the tilting side (north and south

side)!

3 Carefully rotate the Horizontal ring at least one complete

rotation. Verify that all movable parts will rotate without

making any contact with mechanical or electrical

components.

Parameter updates

When a sensitive element is replaced, parameters for the new

element have to be loaded into the GC80 Control unit before the

gyro compass is started. This is done from the Extension menu

as described below.

1 Enter the Extension menu by pressing and holding the SET

button and the ACK/ENT buttons simultaneously for at

least 3 seconds.

Main category A-1 will be displayed.

2 Press the SET button to enter the sub-category loop. Sub-

category 1.1.U and its parameter values will be displayed.

3 Use the arrow buttons to increase or decrease the

parameter value until the value is according to the labelling

for the new sensitive element.

4 Confirm the entry by pressing the ACK/ENT button. The

display will return to sub-category 1.1.U, and the data will

be transferred to the gyro immediately.

5 Press the DISP button again to select sub-category 1.6.t,

and use the arrow buttons to increase or decrease the

parameter value until the value corresponds with the

parameter for the new sensitive element. Confirm the entry

by pressing the ACK/ENT button.

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Simrad GC80 Instruction Manual Page 36