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Chapter 4: Calibration
4.1 Introduction
The ST60+ Depth instrument is set up with factory-programmed default settings,
so in order to optimise the performance of the instrument on board a particular
vessel, the procedures in this Chapter must be carried out immediately after the
completion of installation, and before the equipment is used for navigational
purposes.
Where practicable, the calibration procedures are presented diagrammatically to
show the sequence of button presses and the resulting displays. Adjustment
instructions are given where applicable.
Note:
The procedure for setting alarm level levels is given in Chapter 1, Operation.
4.2 User calibration
The User calibration procedures enable you to:
• Set the required units for depth readings.
• Set the offset for depth readings, i.e. determine whether depth readings are
from the keel of the vessel or from the water line.
• Lock the shallow alarm.
• Set pop-up pilot display on or off.
To carry out a User calibration:
1. Power up the ST60+ Depth instrument.
2. Hold down the
depth
and
alarm
buttons for approximately 2 seconds so
that the User calibration entry screen is displayed.
Note:
The User calibration entry screen will time out to the main display after 7 seconds.
3. Referring to the
User calibration diagram, carry out the calibration proce-
dure. Use the
depth
button to cycle from screen to screen and the
offset
and
reset
buttons to set the required values at each screen.
Depth units
Use this screen to select the units in which depth information is displayed. Either
FEET
,
FATHOMS
or
METRES
.
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