Raymarine ST50 plus Manual de usuario Pagina 20

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ST’50
plus
Tridata and Repeater Operation and Installation Handbook
Chanter
6:
Calibration
I
Log Calibration
The ST50 Plus Tridata should not be used for navigational purposes until the
speed transducer paddlewheel has been calibrated to the vessel. This is a
simple operation that can be carried out automatically over a measured
distance or by manually entering a calibration factor.
*
Automatic Calibration
i
Automatic calibration should be carried out when tidal flow is at a minimum.
Locate an easily identified, marked and measured distance on a chart and
enter this distance into the instrument (4).
Note:The
measured distance should, ideally, be between 1 and 2.5
Nm/Miles
Proceed from object 1 to object 2 (measured distance), pressing
the SPEED
key at the start and finish of the run
(5
and
6).
The calibration factor is
calculated and displayed atthe end of each run
(7).
Repeat the run over the measured distance intfre opposite direction. Once
again the calibration factor will be displayed. This represents the average
for the two runs. A further two runs can be made if required.
Don’t forget
to store the log calibration factor.
Note:The
log calibration range is from 0.25 to 2.00. Calibration factors
outside of this range cannot be stored.
Q
cl
SPEED
4
LOG DISTANCE
5
RUN START
6
RUN END
I
7
CALIBRATION
FACTOR
I
Note: Once you have completed the runs, store the calculated calibration
factor by pressing
DEPTH
and
SPEED
together until the displays returns to
normal mode (approximately 2 seconds).
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Ff 27 Mar 2025 | 12:48:45

Notice st50