Kongsberg EM 122, Installation Manual

Page: 45 / 154

System units
Transceiver Unit
Scope
This chapter presents the general installation procedures for the EM 122 Transceiver
Unit.
Note
The guidelines for installation presented here must be regarded as a base for detailed
vessel specific plans prepared by the installation shipyard. These plans should include
drawings, instructions and procedures specific to the ship in which the equipment is
to be installed.
Location
The EM 122 Transceiver Unit is normally installed in the vessel’s “sonar room” close to
the transducer arrays. This room must be dry and free from excessive dust and vibration.
Maximum humidity of 80% is recommended. Good ventilation for the equipment
cooling must be provided.
Kongsberg Maritime recommends that this room is chosen close enough to the transducer
arrays so that you do not need to extend the transducer cables.
EM 122 have a standard length of 25 m.
The cabinet must be mounted on a bulkhead or on mounting brackets welded to the
bulkhead. Ensure that sufficient space is provided around the unit to allow the unit’s
doors to open fully.
See figure Transceiver unit seen from above. on page 45
317669/B
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