Raymarine ST60 Tridata manual Shallow alarm lock

30 ST60 Tridata Instrument Owner’s Manual

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.

Use the trip (decrement) and reset (increment) keys to set the required offset value:

•If you want to display the depth reading from the transducer, set a value of 0.0.

•If you want to apply a water line offset, adjust the displayed reading until the appropriate positive offset value is shown.

•If you want to apply a keel offset, adjust the displayed reading until the appropriate negative offset value is shown.

+ve offset	Offset value	-ve offset
values	of 0.0	values
Depth offsets		D4352-2

Shallow alarm lock

When set to on, prevents alteration to the shallow depth alarm threshold.