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 51 page image

Chapter 2: Commissioning Procedures 434. If the calculated speed is:• The same as the current speed value noted during the calibration run, then thecalibration is correct at this speed, so proceed from Manual calibration step 6.• Not the same as the indicated speed:i.Calculate a new, corrected calibration factor, as followsii.Press PAGE DN to highlight the calibration factor value field.iii.Scroll to set the displayed calibration factor to the new calculated value.5. Repeat Manual calibration steps 2 to 4, until the current speed value displayedduring the calibration run is the same as the calculated speed.6. Press PAGE UP to highlight the calibration speed field.7. Scroll to select the next calibration speed.8. Repeat Manual calibration steps 2 to 7, until the calibration factor values arecorrect at all calibration speeds.9. Press OK to save the values and return to the Speed transducer setup menu.10. Press CANCEL to return to the Transducers found menu.Speed calibration for smart transducerWhen fitted, a smart (DST800) transducer is calibrated to a set of six default speeds:• 0.5 kt, 1.5 kt, 2.8 kt, 4.8 kt, 10.6 kt and 80 ktThese values provide acceptable transducer performance in most circumstances.However you can insert and/delete different calibration speeds, up to a maximum ofeight, to provide a range of speed values to best suit the way the boat will be used.To do this:1. With the Transducers Found menu displayed(see Preliminary procedure on page 38), scrollto the DST option.2. Press OK to select the DST Details page, thenpress OK, to display the Depth Offset setuppage.3. Ensure the correct depth offset is correct, thenpress OK to display the DST Temperature page.4. Press OK again to display the Speed Calibra-tion page. This shows the list of speeds towhich the DST800 transducer is calibrated.5. To change these speeds, press OK to displaythe Airmar Speed Calibration menu. This givesthe following options:• Add point. Use this to add a speed value tothe list of calibration speeds (see below).• Delete point. Use this to remove a speedvalue from the list of calibration speeds (see below).• Factory Reset. Use this to reapply the default list of calibration speeds.new calibration factor = indicated speedactual speed x old calibration factoriD11235-1Transducers FoundDSTRaymarineSerial no.175417Press OK to selectPress OK to continueSpeed Calibration123456780.5 Kts1.5 Kts2.8 Kts4.8 Kts10.6 Kts80 KtsD11383-1