Raymarine i50 Depth, Installation And Operation Instructions Manual

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8.7 Intermediate calibration — i50
Tridata
Intermediate calibration allows you to:
• Check the instrument software version.
• Check and if necessary set the instrument status
as either Master or Repeater.
• Perform a calibration speed run over a measured
distance to ensure accurate speed readings.
Checking i50 Tridata software version and
status
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15
20
25
30
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40
45
50
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60 5
4 +
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Depth S pe e d
Depth
During normal operation:
1. Press and hold the
Depth and Speed buttons at
the same time for approximately 4 seconds, until
the Software Version page is displayed.
2. Press the Depth button to display the instrument
status.
Master (transducer connected) or Repeater (No
transducer connected).
3. To change the depth status:
i. Press the Trip and Reset buttons at the same
time.
The status will flash.
ii. Use the Trip or Reset button to switch the
status between Master or Repeater.
i. Press the Trip and Reset buttons at the same
time to confirm the new instrument status.
4. Press the Depth button again to begin speed run
calibration.
5. To exit the Intermediate calibration settings at
any time, press and hold the Depth and Speed
buttons at the same time for approximately 4
seconds:
Performing Speed Run Calibration
The Speed Run Calibration involves carrying out
2 or more runs, over a measured distance, to
enable a calibration factor to be determined. Each
run consists of an outward and a return leg which
minimizes the effect of tidal drift when the calibration
factor is determined.
Note: This procedure is not required if current
speed is set to SOG.
From the Intermediate Calibration page:
1. Press the
Depth button until you reach the
Calibration Run page (2 presses from the
Software Version page).
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D e pth
2. Press the Trip and Reset buttons at the same
time.
The run length will flash.
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+
T rip R e s e t
3. Use the Trip and Reset buttons to adjust the run
length to the required value.
The default value is 1.00 (default) the setting can
be adjusted from 0.25 to 2.50).
4. Press the Trip and Reset buttons at the same
time to commence the Speed Run Calibration
The text in the bottom section of the screen
alternates between
Strt 1
and the current
Calibration Factor.
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+
T rip
R e s e t
5. Start the outward leg of the calibration run and
as you pass the start point, press the Speed
button, so the page shows
OUt
at the bottom of
the screen.
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S pe e d
As the calibration run proceeds, the displayed
value will change.
6. At the end of the outward leg press the Speed
button again.
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S pe e d
The text
rEtrn
will flash at the bottom of the
screen and the displayed distance freezes.
Note: At this point the displayed distance may not
be the same as the measured distance, due to
errors introduced by tidal flow.
7. Turn your vessel round, start the return leg
and as you do so, press the Speed button so
rEtrn
stops flashing and the displayed value
increments.
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S pe e d
8. At the end of the return leg, press the Speed
button.
At this point:
• The text
START 2
alternating with the new
Calibration Factor is displayed at the top of the
page.
• The displayed distance freezes
62 i50