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3-5
4. By using a clinometer or other means, measure ship’s semi-permanent incli-
nation angle. Take the polarity of the angle as follows:
0
+ –
0
+ –
ROLL: Starboard up: +, Starboard down: -
PITCH: Stern up: +, Stern down: -
Figure 3-5 Measuring ship’s semi-permanent inclination angle
5. Adjust the potentiometers R35 (ROLL) and R36 (PITCH) on the SNR Board
(06P0228) in the display unit so angle readouts on the screen agree with the
angles measured at step 4.
3.5 Soundome Painting
When the soundome is painted to keep marine life off the transducer, observe
the following precautions:
• Use only anti-fouling paint type MARINE STAR 20 (Manufacturer: Chugoku
Marine Paint Co., Ltd., Japan).
• Paint only the plastic portion of the dome. Painting the metal parts causes cor-
rosion.
Paint area
Figure 3-6 Where to paint the soundome