Raymarine LIGHTHOUSE 4 - Realvision AHRS Calibration

2.[Belowtransducer]—Thisisthedefaultreadingfromthetransducer
(zerooffsetapplied).
3.[Belowk
eel]—Thedepthreadingwillbedecreasedfromthetransducer’s
defaultreading.
Settingadepthoffset
Y oucansetthepointdepthreadingsaretakenfrom.
1.Openthe[Fishfinderapp].
2.Openthe[T ransducer]settingsmenu:[Menu>SettingsTransducer].
3.Ifyouhavemorethan1sonartransducerinstalled,thenyouwillneed
toselecttherelevanttransducer.
4.Selecteither[Belowkeel],[Belowwaterline],or[Belowtransducer]as
required.
i.Ifyouhaveselected[Belowkeel]enteryourtransducer’sdistance
abovethelowestpointofyourkeelintheoffsetfield.
ii.Ifyouhaveselected[Belowwaterline]enteryourtransducer’sdistance
belowthewaterlineintheoffsetfield.
Settingatemperatureoffset
Ifyoursonartransducerincludesatemperaturesensorthenyoucancheck
andcalibrateyourtemperaturereading.
1.Openthe[Fishfinderapp].
2.Openthe[Transducer]settingsmenu:[Menu>SettingsTransducer].
3.Ifyouhavemorethan1sonartransducerinstalled,thenyouwillneed
toselecttherelevanttransducer.
4.Ifrequired,selectthe[Enabletemperaturesensor]toggleswitchto
enablethesensor..
5.Measuretheactualwatertemperatureusingathermometer.
6.Checkyourreadingagainstthedisplayed[Currenttemperature].
7.Ifthereadingsarenotthesame,select[Calibratetemp]andenterthe
differencebetweenyour2readings.
RealVision™AHRScalibration
RealVision™3DandRealVision™3DMaxtransducersincludeabuilt-inAHRS
(AttitudeandHeadingReferenceSensor),whichmeasuresthemotionof
yourvesseltoassistintherenderingofsonarimages.Afterinstallationall
RealVision™transducersrequirecalibration.
Anuncalibratedtransducercanproduceanoffsettothefrontedgeofthe
renderofthebottominthesonarimage,asillustratedbelow.
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