Raymarine ST1000 Plus Specifications download pdf (Page 55)

Chapter 5: Commissioning the Tiller Pilot 53

3. The tiller pilot should immediately respond by switching off its display illumi-

nation. If the illumination does not switch off, there is a cabling fault between

the tiller pilot and the instruments or control unit.

5.2 Initial sea trial

CAUTION:

Failure to carry out the sea trial may result in impaired autopilot

performance on some compass headings.

When you have checked that the system is operating correctly, you must complete

a short sea trial to calibrate the compass.

The tiller pilot has a built-in calibration capability so you can fine-tune it to suit

your boat, its steering system and its dynamic steering characteristics.

As supplied from the factory, the autopilot is calibrated to provide safe, stable

control for most boats.

• Do not attempt to make any permanent changes to the recommended cali-

bration values until you have completed the sea trial.

•You must carry out the initial sea trial in conditions of light wind and calm

water – so you can assess the autopilot’s performance without the influence

of strong winds or large waves.

Before starting the sea trial

Before carrying out the sea trial, you should:

• check the calibration settings and, if necessary, reset them to the default val-

ues (see

page 61

)

• check the installation to make sure that it is not affected by radio transmis-

sions, engine starting, etc.

Calibrating the compass

Automatic compass deviation correction

By completing the following compass correction procedure, the tiller pilot can

correct its own internal fluxgate compass for most deviating magnetic fields. You

should complete the Compass Deviation Correction at the beginning

of your sea trial.

To complete the compass correction:

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Raymarine ST1000 Plus Specifications Page 55