User Manual for the Type 8300 Compatt 6
(and Variants)
UM-8300-Compatt 6
Issue B3
6.2.3 Modem 6
For Operating instructions, refer to the Modem 6 Integration Manual (
IM-Modem 6
), together with the
appropriate user manual for the system in use.
6.2.4 Operating Notes for Inclinometer Variants
The standard transponders can be fitted with an endcap containing dual axis inclinometers as an
option. This version of the bottom endcap will be non-release.
The range of the sensors fitted is ±90°, but when the transponder passes 90° in pitch or roll the sensor
output will show a reducing angle, as the sensor is a sine law device.
The output of the cross axis sensor may report an inverted angle. There is no indication of either of
these occurrences in the output from the transponder. The tilt sensor will not help as it indicates that
the transponder is either upright or inverted within a 45° cone.
The inclinometers orientation is marked on the bottom endcap by a groove running up the edge of the
endcap, indicating the bow or forward face and a BOW/Forward label is fitted adjacent to the groove.
The Sonardyne polarity follows a standard Cartesian format:
Bow Up = Pitch +ve
Port Up = Roll +ve
Section 6 – Operation
27
