MAQ SONAR 22KHz, Technical And Installation Manual

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4) To align the transducer with the Inclinometer, the vertical alignment of the transducer in the sea
chest must be measured. Precise stabilization only occurs when the transducer alignment
matches the Inclinometer. Extreme care must be exercised when conducting this procedure.
Transducer with Positive Bow Tilt
Transducer with Negative Bow Tilt
Transducer with Positive Roll Tilt
Transducer with Negative Roll Tilt
Stern
Stern
If possible the transducer tilt measurements should be performed while the transducer is fully
deployed. (Hoist in the down position).
Ensure there is clearance below the vessel before
lowering the transducer.
Place the digital level on the transducer pipe and align it with the Bow of the vessel. Measure the
pitch angles in accordance with the diagram shown above.
Repeat the measurement for the roll measurement.
5) Now using the joystick, adjust the “Bow (pitch)” and “Port (roll)” angles shown in the menus of
the Sys Panel display to match the transducer/pipe measured angles.
The Inclinometer offsets are displayed on the circular omni display. The Inclinometer offsets are a
combination of the adjustment for the transducer position and the slight misalignment of the
inclinometer.
6) Save the Inclinometer offsets and record these numbers for future reference in case someone
tampers with your sonar settings.
Important:

If the Inclinometer, Processor Unit is moved or if there is maintenance carried out on the sea
chest then this procedure must be repeated.

If the processor computer is reformatted or new software is installed you must also repeat this
procedure.
The Inclinometer Offsets can be restored to the sonar if new software has been loaded into the sonar
and the Inclinometer position has not been disturbed.
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