Raymarine ST70+ Installation Manual

Also see for ST70 Instrument: Installation guide Operating guide User reference guide User reference handbook Operating guide

Contents

Raymarine ST70+ Installation Manual Manual pdf 63 page image

Chapter 3: Commissioning Procedures 53If necessary, use the Setting counter rudder procedure in the ST70+ User ReferenceManual, to improve autopilot performance.Rudder dampingIf the autopilot is ‘hunting’, i.e. continuously moving the steering backwards andforwards by small amounts, use the Setting rudder damping procedure in the ST70+User Reference Manual, to improve autopilot performance.Setting AutoTrimAutoTrim determines how quickly the autopilot applies ‘standing helm’ to correct fortrim changes, caused, for example, by changes in the wind load on thesuperstructure, or an imbalance of engines.Increasing the AutoTrim level reduces the time the autopilot takes to return to thecorrect course, but makes the boat less stable. If the autopilot:• Gives unstable course keeping and the boat ‘snakes’ around the desired course,decrease the AutoTrim level.• Hangs off course for excessive periods of time, increase the AutoTrim level.If necessary, use the Setting AutoTrim procedure in the ST70+ User ReferenceManual, to improve autopilot performance.3.6 After commissioningWhen the dockside setup and open water calibration have been completed, and youhave returned to normal operation, your ST70+ system is ready for use. Refer to theST70+ Operating Guide for instructions on how to use ST70+ on a day-to-day basis.EMC conformanceAlways check the installation before going to sea to make sure that it is not affected byradio transmissions, engine starting etc.To do this:1. Turn on all transmitting equipment (radar, VHF radio etc.).2. Check that all electronic systems are unaffected by the transmitting equipment(e.g. without undue interference).