Hollis Explorer User Manual - page 60
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Alarm flow diagrams
The following sections contain flow diagrams to indicate which actions /
HUD indication will be used separated into diving and surface cases.
The following flow charts should be used in sequence, where an OK from
the red HUD alerts lead to blue/green HUD alerts. Note the following alarm
states (used in the diagram):
No Comms — Pressure sensor is not communicating with electronics, ie.
lost signal.
Stale — Pressure sensor is not communicating updated data.
Missed Stop — Deco ceiling violated for more than 1min. This alarm state
locks out the computer for 24 hours.
Too Shallow — Deco ceiling violated for
At Stop — Within 0.1 bar (3.3 ft / 1 m) below the next stop.
Near Stop — Within 0.3 bar (9.9 ft / 3 m) below the next stop.
Too Deep — Deeper than 0.3 bar (9.9 ft / 3 m) of the next stop.