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Swap Roll Check Box
Swap Array Check Box
Doc. P/N:
WSP-009-002
Version:
V2.3
Issue Date:
July 2014
Installation Manual
B. Sea Trials
The second part of the commissioning procedures requires taking the vessel on a
short sea trial.
Sea Trial - Commissioning Step 9: Array Polarity
With the WMB-160/80F running and displaying the sonar view, determine if the right
side of the sonar display shows topography that is on the starboard side of the vessel.
If you are unsure of the nature of the sea floor you will need to find a feature such as
a rock, bank or significantly sloped sea profile. Use the contour view to navigate and
cross your own track in opposite directions over this feature. If the display seems
incorrect, change the polarity of the Swap Array check box in the Ship Setup
Options, Sensor Values tab and record the new value below. See Figure 33.
Swap Array Selected
Figure 33 – Swap Array and Swap Roll Check Boxes
Sea Trial - Commissioning Step 10 : Roll Correction Polarity
Watch the sonar view carefully when the vessel is subject to some roll. If the roll
polarity is correct the sea floor shown on the sonar view should stay steady as the
vessel rolls. If the roll polarity is not correct, the roll of the sonar display will double
what is actually present. If you are unsure, compare the results with the Swap
Roll check box selected and then de-selected. For an SC30 Swap Roll should be
enabled unless the Array or Antenna are swapped.
Note the correct polarity value below and leave the Swap Roll check box in that
state.
Swap Roll Selected
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Yes
/
No
Yes
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No
Page 53 of 68
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