Chapter 4: Calibration | 27 |
Chapter 4: Calibration
4.1 Introduction
The ST60 Wind instruments are set up with
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.
4.2User calibration
The User calibration procedures:
•Linearize and align the wind transducer.
•Select the required wind speed units
Linearizing 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 automat- ically linearizes the windvane. A successful linearization is indicated by the digital display flashing and the buzzer sounding three beeps.
