Operation Manual
FarSounder, Inc.
F31552 (Rev. 3.8.0)
Page 15 of 69
the rest of the vessel and that zincs are closely located to the Transducer Module. As with any other piece
of marine electronics, it is important to ensure that the Transducer Module does not become anodic (active)
relative to closely located materials.
For composite hulls, it is important that the Transducer Module is connected to the ship's ground. This is
most easily attained by connecting the fairing's inner mounting ring (generally this is a steel flange embedded
into a composite fairing) to the ship's ground.
Additionally, it is recommended that the Transducer Module be electrically connected to zincs. The simplest
way to do this on a composite hull is to weld a ground strap from the fairing's mounting flange to a hull
mounted zinc plate.
Important
If painting the Transducer Module, be certain NOT to paint the urethane array face. Also, be
certain that the paint used will not dissolve, destroy, or otherwise harm the urethane since it is
likely that some paint will touch the edge of the urethane array face.
1.3. Power Module
The Power Module for FarSounder's current products is offered in a bulkhead mounted enclosure designed
to be mounted in a dry location. Previous products were offered with a 2U rack mount enclosure. The Power
Module houses the sonar system's power supplies, transmit signal generator, and power amplifier. As with
other shipboard electronics, the unit should be shock mounted where appropriate. Shock mounting will
generally improve the lifespan of the unit and should be considered for installation locations that experience
extreme shock or vibration. However, this is not a standard requirement.
Figure 18. Power Module (current bulkhead mount configuration)
Figure 19. Power Module (previous rack mount configuration)
The Power Module should be located in a dry location. There are no user interface components on the
Power Module other than a power switch. For installation in inaccessible locations, the power input can be
put on a circuit breaker line with the switch in a convenient location.
