Nexus 21 Multi Control 12.4Compass calibration, 12.3.11 C40 OFF MAG, 12.3.12 C41 DAMPING SEA

Models: Multi Control

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12.3.11 C40 (OFF MAG)

MULTI CONTROL

(Available for analogue steer pilot instruments, from version 1.3).

12.3.11 C40 (OFF MAG)

(Available from Multi version 2.0)

(ON) = All headings and bearings will be magnetic. (OFF) = All headings and bearings will be true.

Note a: In the (Goto WP) function, the bearing for every leg will always be displayed as true bearing.

Note b: The setting is only affects the independent Multi Control instrument in which is set.

12.3.12 C41 DAMPING (SEA)

Damping of compass heading.

Controls the response time of heading changes. To change damping, press SET.

To select damping level, press PLUS and select from:

d0 (Min) to d9 (max).

To store the value, press SET.

Default value is (d0), for use in calm sea. But if the sea is rough, you may want to ”stabilise” the readout on the display, then select (d1) to (d9).

Note! Damping is set separately for each instrument.

12.4Compass calibration

12.4.1Automatic compass deviation compensation (Auto DEV)

(Auto DEV) is performed by driving the boat in a circle up to 1¼ turn, so that the magnetic deviation can be measured, and by that compensated.

Select calibration code C33 (Auto DEV).

Drive the boat in a circle for 1 1/4 turn in calm water. When you start the circle manoeuvre, press SET.

The un-deviated compass course will be shown in the display as you turn. Complete the circle up to 1 ¼ turn.

When the manoeuvre is ready, press SET to store the deviation value.

If the deviation is corrected (Auto DEV) will be displayed. If the deviation is not corrected, an error message will be displayed.

To verify the automatic compass deviation, perform an automatic compass check (Auto CHK), (see 12.4.2).

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Nexus 21 Multi Control operation manual 12.4Compass calibration, 12.3.11 C40 OFF MAG, 12.3.12 C41 DAMPING SEA