Raymarine ST60 Installation Manual download pdf (Page 37)

Chapter 4: Calibration 25

Chapter 4: Calibration

4.1 Introduction

The ST60 Wind instruments are set up with factory-programmed

default settings, so in order to optimise the performance of the

instruments on board a particular vessel, the procedures in this Chapter

must be carried out immediately after the completion of installation,

and before the equipment is used for navigational purposes.

Where practicable, the calibration procedures are presented

diagrammatically to show the sequence of key presses and the

resulting displays. Adjustment instructions are given as applicable.

EMC conformance

• Always check the installation before going to sea to make sure that

it is not affected by radio transmissions, engine starting etc.

• In some installations, it may not be possible to prevent the

equipment from being affected by external influences. Although

this will not damage the equipment, it can lead to spurious resetting

action, or momentarily may result in faulty operation.

4.2 User calibration

The User calibration procedures:

• Linearise and align the wind transducer.

• Select the required wind speed units

Linearising and aligning the wind transducer

This procedure ensures that the sensors in the windvane transducer are

correctly calibrated to record rotation of the windvane, then

compensates for any small errors which may exist in the alignment of

the wind transducer.

To do this:

1. Power-up the ST60 Wind instrument.

2. Slowly turn the vessel through two complete circles. This

procedure automatically linearises the windvane. A successful

linearisation is indicated by the digital display flashing and the

buzzer sounding three beeps.

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Raymarine ST60 Installation Manual Page 37