Raymarine ST70+ Operating Manual

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

Contents

Raymarine ST70+ Operating Manual Manual pdf 44 page image

36 ST70+ User Reference Manualiii. Repeat the calibration process.If deviation remains at more than 5 degrees, contact your Raymarine dealer foradvice.If the deviation figure exceeds 15° or the display shows no deviation value, thecompass is being affected by ferrous objects on your boat. Move the compass toa better location. Higher deviation figures are acceptable on steel boats.3. If the deviation is within acceptable limits, press OK to continue calibration:• If GPS data is available on the system, the Align to GPS screen is displayed.Carry out the Aligning the compass to GPS procedure.• If your system does not have a GPS, the Compass Offset screen is displayed.Carry out the Aligning the compass manually procedure.Aligning the compass to GPSIf a GPS is connected to your data network (SeaTalk, SeaTalk ng or NMEA), theautopilot is set to the GPS heading while you steer to a known magnetic heading. Thisstep provides a rough alignment to reduce the amount of subsequent adjustmentrequired.If GPS data is available, align the compass asfollows:1. Steer the boat on steady course and travelabove 3 knots.2. Follow the on-screen instructions until thescreen displays the ‘OK’ message, then pressOK to continue to the AutoLearn entry page.Aligning the compass manuallyIf GPS data is not available, carry out a manualcompass alignment as follows:1. Steer on a steady course and scroll, to adjustthe displayed heading offset in the upper editbox, until the actual heading in the lower boxmatches the ship’s compass reading.Note: There may be a slight delay between the adjustment ofthe heading offset and the change in the value of the ac-tual heading.2. When the actual heading value has stabilized, press OK to continue to theAutoLearn entry page.iD11192-1Press OK to continueAlign to GPSOKSteer the boat on a steady course.Press CANCEL to exit.NSW ENW EiD11202-1Press OK to acceptCompass OffsetNSW ENW EUse +1 and -1 buttons or rotary toadjust the heading.6°240°Heading M