Before attempting to set a waterline or keel
offset, find out the vertical separation between the
transducer and either the waterline or the bottom of
the keel on your vessel, as appropriate. Then set the
appropriate depth offset value.
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1
2
3
1
Waterline offset
2
Transducer / Zero offset
3
Keel offset
If an offset is not applied, displayed depth readings
represent the distance from the transducer to the
sea bed.
Applying a Depth Offset
From the
User Calibration Menu
:
1. Press the
Depth
button until the
Depth Offset
page is displayed (2 presses from
User
Calibration
entry page).
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2. Use the
Offset
and
Reset
buttons to select the
required depth offset value.
The depth offset can be set to the following
values:
•
Keel
— values between –9.9 to –0.1
•
OFFSET
(default)
(Zero Offset) — 0.0
•
W/L
(Waterline) — values between 0.1 to 9.9
Note:
To exit the user calibration pages at any
time, press and hold the
Depth
and
Alarm
buttons
at the same time for approximately 2 seconds.
6.7 Intermediate calibration — i50
Depth
Intermediate calibration allows you to:
• Check the instrument software version.
• Check and if necessary set the instrument status
as either Master or Repeater.
Checking i50 Depth software version and
status
1
0
15
20
25
30
35
40
45
50
55
60 5
4
+
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A
la rm
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During normal operation:
1. Press and hold the
Depth
and
Alarm
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 page.
Master (transducer connected) or Repeater (No
transducer connected).
3. To change the status:
i.
Press the
Offset
and
Reset
buttons at the
same time.
The status will flash.
ii. Press either the
Offset
or
Reset
to change
the status between Master or Repeater.
i.
Press the
Offset
and
Reset
buttons at the
same time to confirm the status.
4. To exit the Intermediate calibration settings at
any time, press and hold the
Depth
and
Alarm
buttons at the same time for approximately 4
seconds to return to normal operation.
i50 Depth
37
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