Raymarine Autohelm 100 Install Manual

Contents

Raymarine Autohelm 100 Install Manual Manual pdf 95 page image

94TYPE 100/300 Operation and Installation Handbook5.5 Response ControlThere are three response levels to provide tighter than normal coursekeeping when there is restricted sea room. Select each level in turn andobserve the autopilot activity.Level 1 - Automatic Sea State Control• This provides the optimum compromize between power consumptionand course keeping accuracy and is suitable for most situations.The automatic sea state control can be observed during the sea trial.• When the autopilot is initially engaged in Auto mode it will respond to allpitch and roll movements.• During the first minute of operation, it will be noticed that repetitivemovements of the vessel are gradually neglected until finally theautopilot will respond only to true variations in course.• To ensure precise course adjustments the sea state control is automati-cally reset whenever the course change knob is adjusted.Level 2 - Automatic Sea State Inhibit• Where increased course keeping accuracy is required the automaticsea state control can be inhibited by moving to response level 2.• Autopilot activity and therefore power consumption will be increased.Level 3 - Automatic Sea State Inhibit and counter rudder• Where maximum course keeping accuracy is required a Rate Gyrotransducer should be fitted. This introduces counter rudder (rate) toincrease the natural damping of the vessel. On power craft level 3 isuseful at slow speed where the natural damping of the vessel isreduced. Autopilot activity and therefore power consumption will be at amaximum.The minimum response level necessary to achieve the desired coursekeeping should be used to reduce power consumption and autopilot wearand tear.