Installation manual

SimradES70
2Method2:
aClickthemiddleofthebuttontoopenit.
bClickanyrangevalue(includingAutowhenavailable)toselectit.
Bottomdetection
Theseproceduresexplainhowyoucancontrolthebottomdetection.
Topics
•Howtodenemaximumandminimumdepthonpage90
•Howtoadjustthebottomdetectiontondatshonpage91
•Howtoadjustthebottomdetectiontondseagrassonpage92
Relatedtopics
•Aboutrangeselectiononpage117
•Aboutbottomslopesonpage115
Howtodenemaximumandminimumdepth
WhenyouusetheES70itisveryimportantthatitdetectsand“locks”onthecorrect
depth.Normallythiswillhappenautomatically.However,certainconditions(suchas
noiseorairunderthehull),ortheappearanceoflargeschoolsofsh,may“fool”the
sounder.Whenthebottomisundetectedyouwillread0.00metersdepth.
InordertoguidetheES70tolocatethecorrectdepth,youmaysometimesndituseful
tofollowthisprocedure.
Note
Ifyousetmaximumdepthtoavalueidenticalorsmallerthantheminimumvalue,the
bottomdetectionalgorithmwillbedisabled.TheES70willthennotbeabletodetect
thebottomatall,andthedisplayeddepthwillbe0.00m
90
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