Raymarine ST70 - Page 8

•Conditionsshouldbecalmwaterwithaslacktide.
Note:Itisimportantthatthereisnotide.Theaffectoftidal
currentwouldbetopreventanaccuratespeedcalibration.
WiththelistoftransducersavailabledisplayedfromtheTransducer
Setupmenu:
1.PressENTERtoproceedtothetransducersetupoptions.
2.SelectSpeedthenCalibrationfromtheavailableoptions.
3.Calibrateeachspeedasfollows,startingwiththelowest:
1 . 8
2 KTS
S OG = 0 .9
S p e e d = 1 . 2
D118 42 -1
1
3
4
2
1
Selectedcalibrationspeed
2
Currentcalibrationfactor
3
SOG
4
Speedreading(calculatedusinglogspeedandcalibrationfactor)
i.Usethearrowkeystoselecttherequiredcalibrationspeed.
ii.AdjustyourboatspeeduntiltheSOGisatthedesired
calibrationspeed.
iii.Adjustthecalibrationfactor,untiltheSOGandSpeedreading
arethesame.
iv.Repeatthisforeachcalibrationspeedvalidforyourboat.
Speedswhichfalloutsideyourboat’scapabilityneednotbe
calibrated.
4.WhencompletepressENTERtosavethesettingsandreturn
tothetransducersetupmenu.
Calibratingspeed(smarttransducers)
ADST(Depth,Speed,T emperature)smarttransducerhasa
defaultcalibrationsettingwhichprovidesacceptabletransducer
performanceinmostcircumstances.Howeveryoucanperformyour
owncalibrationtosuityourboat.
•YouwillneedanaccurateSpeedoverground(SOG)value,e.g.
determinedfromaGPSconnectedintoyourSeaTalksystem.
•Youwillneedtobeunderway,withsufcientspacetomaneuver
unhindered.
•Conditionsshouldbecalmwaterwithaslacktide.
Note:Itisimportantthatthereisnotide.Theaffectoftidal
currentwouldbetopreventanaccuratespeedcalibration.
Youcansetupto8calibrationpointsacrossthefullspeedrange
foryourboat.
WiththelistoftransducersavailabledisplayedfromtheTransducer
Setupmenu:
1.PressENTERtoproceedtothetransducersetupoptions.
2.SelectSpeedCalibrationfromtheavailableoptions.
ThescreenwilldisplayalistofspeedstowhichtheDST800
transduceriscalibrated.
D118 90 -1
1
2
3
4
5
6
0 . 5 Kt s
1 . 5 Kt s
2 . 8 Kt s
4 . 8 Kt s
1 0 . 6 Kt s
8 0 Kts
0 . 6 Hz
5 . 1 Hz
1 1 . 9 Hz
2 1 . 9 Hz
4 9 . 2 Hz
3 7 1 . 8 Hz
3.PressENTERtodisplaytheSpeedCalibrationmenu.Thisgives
thefollowingoptions:
8
ST70InstrumentQuickreference