Kongsberg Simrad SN90, Installation Manual

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381298/C
87
Installing the transducer cables using a sealing plate
A sealing plate is welded to the hull plating, or to a small trunk. This sealing plate (and
trunk) must maintain the watertight integrity of the hull. The Transceiver Unit can now
be placed closed to the sealing plate. Both the transceiver and the sealing plate must be
placed in a watertight compartment. This installation principle requires that you use a
SN92 or SN93 transducer without the transceiver connector readily mounted. On these
transducers, each cable is fitted with a cable gland designed for the sealing plate.
(CD010205_100_006)
A
Transceiver Unit
B Trunk with sealing plate
C
Watertight compartment
D
Freeboard deck
Sealing plate
To allow the transducer cables to
penetrate the hull in a safe manner,
a sealing plate can be used. You
will not be able to pull the transceiver
plug through a sealing plate, which
means that you must order a SN92
or SN93 transducer
without the
transceiver plug, and with a cable
gland kit consisting of washers, a
rubber gasket and a packing nut.
The sealing plate can be purchased from Kongsberg Maritime, or you can manufacture
it yourself based on the production drawings available.
• http://www.simrad.com/sn90
Note
If you only use a sealing plate to bring the transducer cables through the hull, the
compartment directly over the sealing plate must be watertight. Make sure that your
arrangement is approved by the relevant national registry and corresponding maritime
authority and/or classification society.
Related topics
Three suggested methods, page 82
Installing the transducer