Depth Units; Depth Offset - Raymarine ST60+ Tridata Owner's Handbook Manual

Chapter 4: Calibration 31

Depth units

You can set either FEET or METRES.

Depth offset

Depths are measured from the transducer to the sea bed. However, you can use
the depth offset screen to apply offsets to this distance, so that the displayed
depth reading represents either the depth from the keel or the depth from the
water line. In order to do this, you need to know the vertical separation between
the transducer position and:
• The bottom of the keel.
• The water line.
+ve offset Offset value -ve offset
values of 0.0 values
Depth offsets
D4352-2