Simrad 50-200 COMBI C -  REV D Installation Manual Download Page 10

Simrad 50/200 Combi D Transducer

6

851-165216 / Rev.A

Summary and general recommendation

Some of the above guide lines are conflicting, and each case has
to be treated individually in order to find the best compromise.
Generally the propeller noise is the dominant factor, and a
recommended transducer location is in the fore part of the hull,
with maximum distance from the bow equal to one third of the
total length of the hull at the water line.

General recommendation for transducer location:

(A) = Transducer

(B) = Angle 1 - 2 degrees

(L) = Hull length at water line

(M) = Maximum 1/3 of the hull length at water line (L)

If the vessel hull has a bulbous bow, this may well be a good
transducer location, but also here must be taken into
consideration the flow pattern of the aerated water. Often the
foremost part of the bulb is preferable.

Summary of Contents for 50-200 COMBI C - REV D

Page 1: ...50 200 Combi D Echo sounder transducer Installation manual M A X I M I Z I N G Y O U R P E R F O R M A N C E A T S E A www simrad com...

Page 2: ......

Page 3: ...851 165216 Rev A Simrad 50 200 Combi D Transducer Installation manual...

Page 4: ...in connection with the furnishing performance or use of this document The equipment to which this manual applies must only be used for the purpose for which it was designed Improper use or maintenance...

Page 5: ...el Also when applicable the installation shipyard must have the drawings and installation approved by the proper authorities Transducer order no KSV 203005 A cable gland kit for steel hulls is include...

Page 6: ...en applicable Cable glands Steel conduit for transducer cable Handling and maintenance Approved anti fouling paints The information in this chapter must be regarded as general guidelines and recommend...

Page 7: ...of high power transducers Cavitation is the formation of small bubbles in the water due to the resulting local pressure becoming negative during parts of the acoustic pressure cycles The cavitation th...

Page 8: ...goes from laminar to turbulent The figure below illustrates the boundary layer of a vessel moving through the water Boundary water layers A Turbulent flow B Laminar flow C Air bubbles in the water Fur...

Page 9: ...blades move upwards because the propeller cavitation is strongest on the other side The cavitation starts most easily when the water flows in the same direction as the propeller blade and that is to...

Page 10: ...s in the fore part of the hull with maximum distance from the bow equal to one third of the total length of the hull at the water line General recommendation for transducer location A Transducer B Ang...

Page 11: ...n steel hulls and on wood or polyester hulls respectively Inclination of the transducer face Incline the transducer face approximately 1 2 degrees D so that the flowing water meets it directly This as...

Page 12: ...e fairing can be made of wood or steel and should have the same outline dimensions as the transducer Remember to create an air outlet E on the fairing and to fill the bolt holes with a filling compoun...

Page 13: ...steel and should have the same outline dimensions as the transducer Use tarred felt H between th fairing and the hull Remember to create an air outlet E on the fairing and to fill the bolt holes with...

Page 14: ...e or stainless steel bolts I and a cable bushing Note that the cable bushing must be mounted with proper gaskets 4 under and over the hull as well as sealing compound J around the its body Also fill t...

Page 15: ...nal angle On deplacement hulls the transducer A must be mounted in an angle of 5 to 8 degrees B in relation to the keel C With a planing hull this angle must be 0 degrees A Transducer B 5 to 8 on depl...

Page 16: ...installed in this manner are also easier to replace Some vessels may experience difficulties finding suitable areas of the hull for mounting transducer cable glands due to existing water tanks concre...

Page 17: ...Make sure that you do not damage the transducer cable by tightening the packing nipple too hard F Cable to the echo sounder or a junction box The gland gland kit includes all of the necessary parts n...

Page 18: ...C Rubber gaskets D Hole diameter 28 mm E Steel conduit F Cable to the echo sounder or a junction box The gland gland kit includes all of the necessary parts needed to install the unit excluding screws...

Page 19: ...tube hole diameter 36 mm 1 5 mm Apply ample amount of sealant between the backing washer H and the hull plate The cable gland kit contains all the listed parts except the sealant Note The two O rings...

Page 20: ...erformance The steel conduit must be unbroken and watertight from the transducer to above the water line From there the cable can be pulled further or a junction box can be installed to facilitate fur...

Page 21: ...g paint may be applied to the transducer face Because some paint types may be aggressive to the polyurethane in the transducer face please consult Simrad s list of approved paints on the next page Not...

Page 22: ...eamate HB 66 Antifouling Seamate HB 99 Racing Non stop From International Paints Intersleek tie coat 425 FCS BXA386 BXA390 BXA391 Grey HKA563 HKA570 HKA571 Yellow Mix BXA386 BXA390 and BXA391 first th...

Page 23: ...drawings are for information and guidance only They are not in scale All dimensions are in mm unless otherwise is noted The drawings are available on AutoCad and or PDF format Contact your local Simr...

Page 24: ...Simrad 50 200 Combi D Transducer 20 851 165216 Rev A 50 200 Combi D Outline dimensions...

Page 25: ...Installation manual 21 851 165216 Rev A 50 200 Combi D Installation Connections...

Page 26: ...Simrad 50 200 Combi D Transducer 22 851 165216 Rev A 50 200 Combi D Installation Cable gland...

Page 27: ...Installation manual 23 851 165216 Rev A 50 200 Combi D Installation Steel fairing and mounting...

Page 28: ...Simrad 50 200 Combi D Transducer 24 851 165216 Rev A 50 200 Combi D Installation Recommended physical location...

Page 29: ...Notes...

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Page 32: ...E 2005 Simrad AS ISBN 82 8066 058 5...

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