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- 14 –
SL50
User guide – 33-60-022-000
2.3 Autocompensation of the fluxgate compass
Please refer to the compass user manual before starting the autocompensation procedure.
In order to achieve a successful autocompensation, you must navigate :
-
On smooth sea, with no current and no wind.
-
Away from large magnetic masses such as cargo boats.
-
In an open area allowing the execution of a circle with a diameter approximately 5 times the
length of the boat.
-
At a constant speed of about 2 or 3 knots.
Procedure
1. Select the
magn head
channel,
2. Start to describe the circle, then press the 2 second on the key
▼
, to launch the
autocompensation procedure.
3. One single circle
*
is sufficient to perform the autocompensation correctly, when its a
success, the message
3000
is indicated.
* For the previous generation of compass, referenced as 90-60-005, at least three circles
must be executed.
In case of problem during autocompensation, the
SL50
displays the
PAN
message , plus one
code :
-
Code 1 : cancellation at user request.
-
Code 2 : detection of a gyration in the opposite direction. Start again clockwise.
-
Code 3 : excessive variation between 2 heading measurements. Reduce the speed of your
boat to 2 or 3 knots.
-
Code 4 : angle correction higher than 20°. Start the autocompensation procedure over.
In case of autocompensation error, the measurements are not saved to the memory and the
sensor resumes its normal operating mode.
2.4 Technical specifications
-
Power supply : 10 to 16VDC
-
Consumption : 20mA without lighting and 70mA with lighting.
-
Tightness : IP67
-
Weight : 1.150kg including cable
-
Dimensions : height = 260mm ; width = 156mm ; thickness = 45mm
-
Operating temperature : -10°C to +50°C
-
Storage temperature : -20°C to +60°C
-
Horizontal viewing angle : superior to 120°
-
Vertical viewing angle : superior to 90°
Height of the characters displayed : 50 mm for the channel, and 10 mm for the identifier and the
unit.
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