Raymarine SPX-5, Инструкция по установке и настройке

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Chapter 3: Commissioning & setup 37
If the deviation figure exceeds 15° or the display shows no deviation value, the
compass is being affected by ferrous objects on your boat. You should move the
compass to a better location. Higher deviation figures are acceptable on steel boats.
Aligning the compass heading
Once the deviation is displayed, press
disp
to move to the Heading Alignment
(ALIGN HDG) page, then:
1. Manually steer the boat on a steady course at a speed sufficient to hold the
course.
2. If you have a GPS connected to your SPX-5 Wheel system:
i. Increase the boat speed to more than 3 knots.
ii. Press
auto
. The SPX-5 Wheel system will then set the heading to agree with
the COG (course over ground) heading received from the GPS.
As many factors can cause a difference between heading and COG you must fine-
tune the heading alignment so it matches the boat’s steering compass (or a known
transit bearing). To do this:
1. Use
-
1, +1, -10
and
+10
to adjust the displayed heading until it matches boat’s
steering compass (or a known transit bearing).
2. Hold down
standby
for 2 seconds to exit Seatrial calibration and save the new
compass settings.
D10542-1
Turn boat in slow circles so:
• boat's speed stays below 2 knots
• each circle takes at least 2 minutes
Minimum of
2 circles
Keep turning the boat until
you see the DEVIATION screen
Start
turning boat
Autopilot heading
87074_2.book Page 37 Wednesday, November 21, 2007 3:55 PM