Chapter 2: Installation
21
Figure 2-10:
Vertical Adjustment and Cable Routing
3. When you are satisfied with the position of the transducer,
tighten the two
bracket screws
.
Testing on the Water
1. Become familiar with your fishfinder’s performance at a speed of 4kts
(5MPH).
2. Gradually increase the boat speed and observe the gradual decline in per-
formance due to turbulent water flowing over the transducer’s active sur-
face.
3. If the degradation is sudden (not gradual), identify the boat speed at
which the onset occurred. Return the boat to this speed, then gradually
increase speed while making moderate turns in both directions.
4. If the performance improves while turning, the transducer’s position
probably needs adjustment. It is probably in aerated water. Move the
transducer farther down into the water in increments of 3mm (1/8"). If the
performance does not improve satisfactorily, move the transducer closer
to the centerline of the boat. Fill unused screw holes with marine sealant.
50 mm (2")
cable cover
Hull projection
3mm (1/8")
parallel to
waterline
cable clamp
D6766-1
bereitgestellt von Busse-Yachtshop.de
Содержание DS400
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