Garmin GHP 20 System for Yamaha Helm Master Manual de instalación descargar pdf (Pagina 12)

12 GHP 20 Installation Instructions

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The Sea Trial Wizard congures the fundamental sensors on the

autopilot, and it is extremely important to complete the wizard in

conditions appropriate for your boat.



Complete the Sea Trial Wizard in calm water. The nature of calm water

is relative to the size and shape of your boat.

• Ensure your boat does not rock while sitting still or moving very

slowly.

• Ensure your boat is not signicantly affected by the wind.

• Keep the weight on your boat balanced. DO NOT move around

on the boat while completing any of the steps in the Sea Trial

Wizard.



Before you start the Sea Trial Wizard, you must drive to an open area of

calm water.

1. Turn on the GHP 20.

2. Select an option:

• If the Sea Trial Wizard starts automatically, proceed to step 3.

• If the Sea Trial Wizard does not start automatically, select Menu

> Setup > Dealer Autopilot Conguration > Wizards > Sea

Trial Wizard.

3. Select Begin.



1. Drive your boat to an open area of calm water.

2. Start the Sea Trial Wizard (page 12).

3. Congure the planing RPM (page 12).

4. Calibrate the compass (page 12).

5. Perform the autotune procedure (page 12).

6. Set north (page 12).

7. If necessary, set the ne heading adjustment (page 12).



1. Note the RPM reading from the tachometer on the dashboard of

your boat at the point your boat transitions from displacement to

planing speed.

2. If the tachometer value does not match the value on the GHC 20,

use the arrows to adjust the value.

3. Select Done.

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1. Drive your boat at slow/idle speed in a straight line.

2. Select Begin, and continue to drive in a straight line.

3. When instructed, turn the boat slowly clockwise, taking care to

make the turn as steady and at as possible.

Turn slowly so that the boat DOES NOT list.

The GHC 20 displays a completion message when the calibration is

complete.

4. Select an option:

• If the calibration completes successfully, select Done.

• If the calibration fails, select Retry and repeat steps 1–3.

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Before you can perform the autotune procedure, you must have a large

stretch of open water available.

1. Adjust the throttle so the boat travels below planing speed.

2. Select Begin.

The boat performs a number of zigzag motions while the Autotuning

is in progress.

The GHC 20 displays a completion message.

3. Select an option:

• If the autotune completed successfully, select Done and take

manual control of the boat.

• If the autotune failed, adjust the throttle and select Retry

Autotune.

4. If autotune fails, repeat steps 1–3 until the autotune completes

successfully.

5. If the autotune procedure continues to fail after you reach maximum

cruising speed, reduce your speed to the initial autotune speed

and select Alternate Autotune to begin an alternate autotuning

procedure.

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Before you can set north, you must have at least 45 seconds of hazard-

free, open water available.

This procedure appears only if you connect an optional GPS device to

the GHP 20 (page 10), and the device has acquired a GPS position. If

you do not have a GPS device connected, you are prompted to set the

ne heading adjustment (page 12).

1. Drive the boat in a straight line at cruising speed, parallel to the

prevailing wind and current, for 45 seconds.

2. Select Begin.

3. Select an option:

• If the calibration completed successfully, select Done.

• If the calibration failed, repeat steps 1–2.

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This procedure appears only if you do not have an optional GPS

device connected to the GHP 20 (page 10). If you do have a GPS

device installed on your boat that has acquired a GPS position, you are

prompted to set north instead (page 12).

1. Using a handheld compass, identify north.

2. Adjust the ne heading setting until it matches north on the

magnetic compass.

3. Select Done.

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1. Test the autopilot at a slow speed.

2. If necessary, adjust the gain setting (page 13).

3. Test the autopilot at a higher speed (normal operating conditions).

4. If necessary, adjust the gain and acceleration limiter settings.

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1. Drive the boat in one direction with the autopilot engaged (heading

hold).

The boat should not oscillate signicantly; however, a small amount

of oscillation is normal.

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Garmin GHP 20 System for Yamaha Helm Master Manual de instalación Pagina 12

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