INSTALLATION INSTRUCTIONS
SeaBat 7125 SV2 Operator‟s Manual
Page 171
July 25, 2011
Version 3
C.6.5 Sounding Reference Point
The following axis convention is applied for the sounding reference point convention:
X = across ship, points to starboard
Y = along ship, points forward
Z = vertical, points up
There is a single sounding reference point to which all output is related. This point is
normally defined in the data acquisition software as a node or offset point. This point is
in the center of the receiver in the Z direction and in the center of the projector in both
the X and Y directions. For details, refer to
Figure 78: Sonar Reference Point Definition
It is important to note that the sounding reference point may not be a physical point on
the sonar system.
C.6.6 Wet-End Cable Connections
The cable connections to the receiver and projector units should be made
prior to immersing the units in water.
WARNING!
The projector connections must be handled with great
care as the output power voltage is hazardous to human
safety.
Do
not
pull out the cables with power on.
Output voltage: 280V
rms
≈ 800V
p-p
A light lubrication coating on the connector face will ensure sealing (see
section 2.2.2.2 Wet-End Connectors
).
Unused connectors should be sealed with dummy plugs.
Verify that all cables are securely fastened and that strain relief is provided to
prevent cable damage.
CAUTION
Take care to avoid impact to the faces of projector and receiver
units, as damage could degrade system performance.
CAUTION
To reduce the amount of radiated emission, the cables for
receiver, projector(s), and SVP must be bundled tightly together
onboard the vessel.
Summary of Contents for SeaBat 7125 SV2
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