Alarms; Alarm Indications; Shallow Alarm; Deep Alarm - Raymarine ST40 Owner's Handbook Manual

7
Chapter 1: Operation

1.3 Alarms

Alarm indications

Shallow alarm

Depth is equal to or less than the shallow alarm threshold.
Alarm continues until cancelled manually.
D4666-2

Deep alarm

Triggered by depths equal to the deep alarm threshold. Continues until cancelled manually.
D4789_2

Anchor alarms

Depth is either:
equal to or less than the shallow anchor alarm threshold
or
equal to or more than the deep anchor alarm threshold
D4790-2