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3.1.9 Connector Cleaning
General cleaning and removal of any accumulated sand or mud on a
connector should be performed using spray based cleaner (for example
Isopropyl Alcohol).
New grease must be applied again prior to mating.
3.2 Location
When evaluating the installation location of the ISA500, there are several
factors to consider to achieve optimum operation:
–
Acoustics
(Altitude Measurement)
–
Magnetic Disturbers
(Heading)
–
Alignment with Vehicle
(Pitch/Roll)
–
Heat Sources
(Temperature Measurement)
3.2.1 Acoustics (Altitude Measurement Performance)
The transducer must have a clear view of the seabed. Any items which
obstruct this view may result in erroneous Altitude measurements. If entirely
obstructed, no Altitude readings will be possible.
Ideally the ISA500 should
not
be operated in close proximity to other
acoustic equipment with the same operational frequency (500kHz). Other
acoustic equipment may cause the ISA500 to produce erratic Altitude
readings.
In some instances, if the ISA500 is found to be causing interference with
other acoustic systems, the operational frequency can be adjusted to move it
out of band with the other equipment – see
Section 5
for details.
3.2.2 Magnetic Disturbers (Heading Performance)
Where the heading output is to be used, the ISA500 should be mounted as
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