Hollis Explorer User Manual - page 69
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Gas Reserves
DYNAMIC RESERVE
The EXPLORER monitors the high pressure (HP) contents of the onboard
gas supplies.
The EXPLORER includes two warning system for the HP contents.
1. Pressure below reserve level.
2. Rate of use of gas is too high or too low indicating either a leak or that
the HP cylinder valve is turned off and gas injection is being unsuccessfully
attempted.
The gas supply reserve level is dynamically adjusted based on depth
(because ascent times vary with depth) and assumes a stressed breathing
rate of 20 l/min on open circuit bailout using the onboard cylinder. If the
system sees this reserve limit approaching, it will warn the diver to ascend.
BAILOUT TO OPEN CIRCUIT
Should the operation of the EXPLORER generate an emergency alarm (red
HUD LED and vibrating HUD) then the diver must bailout to open circuit
on either the in-board supply (above 18 m/60 ft) or the off-board supply
(below 18 m/60 ft).
!
NOTE: Decompression calculations for the ascent profile will
assume air as a breathing gas to provide additional safety during a
bailout ascent.
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