Chapter 4: Calibration 25
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 key presses and the resulting displays. Adjustment
instructions are given where applicable.
Note:
The procedure for setting alarm threshold levels is given in Chapter 1, Operation.
EMC conformance
Always check the installation before going to sea to make sure that it is not
affected by radio transmissions, engine starting etc.
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.
Procedure
To carry out a User calibration:
1. Power up the ST60 Depth instrument.
2. Press the
depth and alarm keys 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 procedure.
Use the
depth key to cycle from screen to screen and the offset and reset
keys to set the required values at each screen.
81038_4.book Page 25 Wednesday, March 24, 2004 3:17 PM
