Compensation (for cont.100/130 + mini b)

Magnetic fields generating interference on the compass performance exist on all boats. The impact on the compass, called "deviation", can originate from many different sources: metallic masses, loudspeakers, engines, electronic instruments… If deviation ranks between 7 and 20°, your compass should indeed be compensated. Our compasses are supplied with built-in compensation or can be further equipped with an optional compensation cell. They are designed to be user compensated. Compensating a compass consists in adjusting the position of the 2 magnets, in order to affect the horizontal component of the card by modifying the North/South and East/West deviation. Use a second compass as the reference; a hand-bearing compass is often the most convenient, provided it is interference-free. The North-South screw corrects North-South heading; the East/West screw corrects the East-West heading. • Run the boat along the Northerly course selected as per your hand-bearing compass and adjust your steering compass by turning the North and South screws either way, so that the steering compass also points North. • Repeat the procedure, running the boat Easterly. • Run the boat Southerly and this time, reduce the deviation by half. • Run the boat Westerly and reduce the deviation by half. • Note: Upon completing the compensation procedure, it is essential to draw a new deviation table.

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