Inspecting the transducer installation
Correct installation of the transducer is critical to successful operation of the MS70.
Prerequisites
The following specific tool is required for this task:
•  Camera
Note
Due to the fact that the transducer is physically installed under the hull, its location must be determined on the installation drawings. The installation shipyard must provide all necessary installation drawings.
Context
The installation of the transducer and the transducer cables are described in the MS70 Installation manual.
Procedure
1 Obtain the installation drawing(s) prepared by the installation shipyard.
2 Verify that the transducer has been positioned according to the relevant guidelines in the MS70 Installation Manual.
3 Record the distance between the transducer and the propellers.
4 Record the distance between the transducer and the keel.
5 Record what type of anti-fouling paint that has been used on the transducer face.
6 Inspect the transducer cables as closely as permitted.
a Verify that the transducer cables have been installed as specified in the MS70 Installation Manual.
b Verify that the transducer cables have not been damaged during installation.
c Verify that the transducer cables have been installed using steel conduits, cable ducts and/or pipes, and that the cable(s) have been properly secured to these to avoid damage caused by motion and vibration.
d Verify that the steel conduits, cable ducts and/or pipes used to secure the transducer cables do not have sharp edges or protruding items that may cause damage.
e Verify that the cables have been entered into the steel conduits, cable ducts and/or pipes without causing excessive physical stress.
f Verify that enough slack has been provided for the transducer cables to allow maintenance and replacements.
7 If the transducer has been installed in a drop keel:
a Verify that the cables can move freely during lowering and hoisting of the drop keel.
b Verify that there are no sharp edges or protruding elements that may cause damage to the cables during lowering and hoisting.
c Verify that the cables are not bent too tightly under during lowering and hoisting.
8 Use a high resolution digital camera, and take pictures of the installation.
The pictures must clearly show how the transducer and the transducer cables are installed. Attach the pictures (files and/or prints) to the test report.