Raymarine ST70 Instrument, Руководство пользователя

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Setting the depth offset
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.
With the list of transducers available displayed from the Transducer
Setup menu.
1. Press ENTER to proceed to the transducer setup options.
2. Select either:
• Depth , for a conventional depth transducer,
• DST or DT for a smart transducer.
3. Select from the following choices:
• Waterline
• Keel
4. Use the arrow buttons to select the required offset.
This is the vertical distance from the transducer to the Keel or
Waterline as required.
5. Press ENTER to save the offset value.
6. Press CANCEL to exit the Transducer Setup menu.
4.3 Calibrating water temperature
You can calibrate the water temperature reading. This is done by
matching the temperature displayed by the instrument to a separate
reading taken with a thermometer.
You will need an suitable thermometer to measure the water
temperature.
With the list of transducers available displayed from the Transducer
Setup menu.
1. Press ENTER to proceed to the transducer setup options.
2. Select either:
• Speed , for a conventional depth transducer,
• DST or DT for a smart transducer.
3. Select the Temperature Offset option.
4. Use a suitable thermometer to measure the water temperature.
5. Use the arrow buttons to match the displayed temperature at the
instrument to that measured by the thermometer.
6. Press ENTER to save the setting.
7. Press CANCEL to exit the Transducer Setup menu.
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