Electronic Interference Suppression; Auto Compass Calibration - Simrad TP10 Manual

TACK
TACK
STBY
STBY
AUTO
TACK
22 |

Electronic interference suppression

The Tillerpilot has been designed to minimize the effects of
interference generated by the engine alternator. However,
precautions should still be taken by routing the cables away from
the engine compartment. Do not run the cables down trunking
carrying high current or radio antenna cables.
Engines with spark ignition, also some refrigerators, should be fitted
with suppressors. Your local agent should be able to advise on this
and supply suppression kits where necessary.

Auto compass calibration

Once the Tillerpilot is installed, it is necessary to calibrate the internal
compass to compensate for deviation caused by any metallic or
magnetic objects surrounding it on the vessel.
With the vessel motoring slowly (2–3 knots) in calm conditions and
the Tillerpilot in Standby mode, press the starboard ( ) key a
number of times to induce a slow, clockwise rotation of the vessel.
Then press and hold the TACK key, followed by the port ( ) and
starboard ( ) keys simultaneously.
The port and starboard LEDs will both light. Allow the vessel to
turn through a minimum of 11/4 turns (450º) in approximately two
minutes, during which time the fluxgate compass will automatically
calibrate itself.
If the rate of turn or boat speed is too fast, the port LED will flash.
Either slow the boat, or reduce the angle of turn. If the rate of turn
or boat speed is too slow, the starboard LED will flash – either
increase the boat speed, or increase the angle of turn. A short
beep will indicate that the calibration has been successful and the
Tillerpilot will return to Standby mode. If the calibration has been
unsuccessful, after a period of four minutes a long beep will sound.
¼ Note:
If the calibration routine keeps failing after repeated attempts,
the Tillerpilot may be experiencing excessive magnetic deviation
that it cannot compensate for. Check the area within 1 m (3 ft) of the
Tillerpilot for likely sources, such as cockpit speakers or large metallic
objects – if these cannot be relocated, it may be necessary to fit an
external compass ("Using an external compass" on page 9).