Chapter 3: Installation
17
• The equipment should be supplied from a different battery than the
one used for engine start. Voltage drops below 10 V in the power
supply to our products can cause the equipment to reset. This will
not damage the equipment, but will cause the loss of some
information and can change the operating mode.
• Genuine Raytheon cables should be used at all times. Cutting and
rejoining these cables can compromise EMC performance and so
should be avoided unless doing so is detailed in the installation
manual.
• If a suppression ferrite is attached to a cable, this ferrite should not
be removed. If the ferrite has to be removed during installation it
must be reassembled in the same position.
Suppression ferrites
The following illustration shows the typical range of suppression
ferrites fitted to Raytheon equipment. Always use the ferrites specified
by Raytheon.
Connections to other equipmentConnections to other equipment
Connections to other equipmentConnections to other equipment
Connections to other equipment
If your Raytheon equipment is going to be connected to other
equipment using a cable not supplied by Raytheon, a suppression
ferrite MUST always be fitted to the cable close to the Raytheon unit.
3.2 Procedures
As it is not possible to describe procedures for all possible installation
scenarios, the procedures given here describe the broad requirements
for installing the Speed and Depth transducers and the ST60 Tridata
instrument. Adapt these procedures as appropriate, to suit your
individual requirement.
CAUTION:
Where it is necessary to cut holes (e.g. for cable routing and
instrument mounting), ensure that these will not cause a hazard by
weakening critical parts of the vessel’s structure.
040_2c03.p65 09/08/99, 09:3217
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