Designing, manufacturing and mounting the installation hardware
Once the physical location of the transducer has been determined, the installation hardware must be designed, manufactured and mounted.
Prerequisites
Before you can do this task, the following prerequisites must be met:
•  All relevant vessel and transducer drawings must be available.
•  All relevant work instructions, procedures and standards must be available.
•  The physical location of the transducer has been determined.
•  The installation method has been determined.
•  The cable gland has been installed.
•  All relevant personnel (naval architects, designers, skilled shipyard workers) and tools must be available.
Context
The installation shipyard must provide all necessary installation drawings. If required, all drawings and documents provided by shipyard for the installation of the transducermust be approved by the vessel’s national registry and corresponding maritime authority and/or classification society.The shipowner and the shipyard doing the installation are responsible for obtaining and paying for such approval.
The outline dimensions of the ES18 transducer and the relevant installation items can be found in the Drawing file chapter in this manual. Relevant outline dimensions and production drawings can be download from our website. The source drawings are available in AutoCad format.
Procedure
1 Based on the vessel drawings, the physical properties of the hull, and the functionality required by the ES18, design the mounting hardware.
2 Manufacture the hardware according to the relevant production standards.
3 Mount the hardware under the vessel’s hull.
Note
Make sure that the surface of the resulting installation is as smooth and streamlined as possible. Mounting screws or bolts must not be extruding from the hull or from the installation hardware. Make sure that the surface of the transducer face, the hull plating and putty around the transducer is as even and smooth as possible. Obstructions on these surfaces will create problems with turbulent flow, and may cause noise.
4 If relevant, allow the relevant maritime authority and/or classification society to inspect and approve the design and installation.