Raymarine i50 Depth Installation And Operation Instructions Manual page 59

Note: To exit the User Calibration pages at any
time, press and hold the Depth and Speed buttons
at the same time for approximately 2 seconds to
return to normal operation.
Depth Offset
Depths are measured from the transducer to the sea
bed, but you can apply an offset value to the depth
data, so that the displayed depth reading represents
the depth to the sea bed from either the keel or the
waterline.
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.
1
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 the User
Calibration page).
De pth
2. Use the Trip 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 Speed buttons
at the same time for approximately 2 seconds to
return to normal operation.
Selecting the unit of measure for speed
readings - i50 Tridata
From the User Calibration Menu.
i50 Tridata
2 3
1. Press the Speed button until the Speed Units
page is displayed (1 press from the User
Calibration page)
2. Use the Trip and Reset buttons to select the
required unit of measurement for speed readings.
The units of measure available for speed
readings are:
• KTS — Knots (default)
• MPH — Miles Per Hour
• KMH — Kilometers Per Hour
Note: To exit the User Calibration pages at any
time, press and hold the Depth and Speed buttons
at the same time for approximately 2 seconds to
return to normal operation.
Selecting a speed resolution
From the User Calibration Menu.
1. Press the Speed button until the Speed
Resolution page is displayed (2 presses from
the User Calibration page).
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2. Use the Trip and Reset buttons to select the
required resolution for speed readings.
The resolutions available are 0.01 (default) and
0.1.
Note: To exit the User Calibration pages at any
time, press and hold the Depth and Speed buttons
at the same time for approximately 2 seconds to
return to normal operation.
Selecting the unit of measure for log readings
From the User Calibration Menu.
1. Press the Speed button until the Log Units
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page is displayed (3 presses from the User
Calibration page).
2. Use the Trip and Reset buttons to select the
required unit of measurement for log readings.
• KM (default) — Kilometers
• SM — Statute Miles
• NM — Nautical Miles
Note: To exit the User Calibration pages at any
time, press and hold the Depth and Speed buttons
at the same time for approximately 2 seconds to
return to normal operation.
S pe e d
S pe e d
S pe e d
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59