Hollis Explorer User Manual - page 41
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Bailout and Gas Configuration
DEFAULT GAS SETTING
The EXPLORER has the capability to analyze the dive gas attached to the
system. If this gas differs significantly from what the EXPLORER expects
(the programmed Default Gas), then a warning will be given during the pre-
dive sequence. This is to help protect against absent or faulty gas analysis
by the gas supplier and user.
To change the Default Gas when the unit turns on, go to the SETUP menu
screen and highlight Default Gas. Then a short push of both left and right
buttons to select (Fig. 3.17). The gas can now be set. On this screen you
can also input the cylinder size.
!
DANGER: It is important that the correct cylinder size is entered for
EXPLORER to correctly calculate the remaining resource times.
The Default Gas information is used to drive bailout gas calculation (using
cylinder size) and hence gas time remaining. During the Pre-Dive Se-
quence the Explorer performs gas analysis checks.
If the gas analyzed does not match the programmed default gas but is
still usable (
within 5%)
, you can simply start the dive without having to
change the Default Gas setting. If the gas analyzed does not match the
programmed default gas, the user will be brought back to the begining of
start up and required to change the Default Gas setting. If the Explorer's
gas analysis seems incorrect, you should re-analyze the gas and/or check
the oxygen sensor calibration.
BAILOUT GAS
It is not necessary to set a bailout gas. Whether the bailout is undertaken
using the onboard (attached) gas or an external gas supply, all dive table
calculations are completed assuming the diver is breathing air. (21% oxy-
gen, 79% nitrogen). This makes all calculations as conservative as possi-
ble.
Fig. 3.17
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