Edition: 2021-01-29
ETNSTCI/ETNSTCILF Installation Manual
Page 4 of 14
1. General information
The SKIPPER ETNSTCI/ETNSTCILF combo ice/sand protection tank is used for installation of:
1. Echo sounder transducer type (24, 38, 50 and 200 kHz).
Caution!
Be aware that the transducer contains high precision parts and therefore proper
handling when mounting is essential for the nal result.
First of all, it must be decided where the tank should be installed. Normally, this will be in the fore part of
the ship, in the centerline, or as close to the centerline as possible. Optimal system operation is achieved by
tting the transducer as deep as possible on the hull.
• The active surface of the transducer must be installed with front face a maximum of +/-7 degree to the
ships horizontal plane.
Do not mount sensor/transducers close to the bow thruster propeller outlets, or aft of other hull installations
(outlets, vents or other protruding details) who may create aeration or turbulence.
It is necessary to select a part of the hull that is submerged and free from turbulence and aeration under all
load and speed conditions, and to avoid positions where air is trapped in heavy weather.
If a at, horizontal section is not available for the transducer tting, the shipyard must construct a suitable
bed. Welding seams in this area should be smoothed and rounded o, in order not to create turbulence or
aeration at speed.
Protect the active element of the transducer during transport and installation, and
do not paint the surface.
SKIPPER Electronics AS
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