Aqua Lung i550, Owner'S Manual

Page: 20 / 57

Doc. 12-7840-r03 (3/28/16)
20
DIVE SURFACE MODE
© Aqua Lung International, Inc. (2016)
SEL
ADV
to Data 2
max ascent
rate
Deep Stop triggered,
blank otherwise
max depth
pre dive Surface Interval
hr:min, - : - - if first dive during
the activation period
max tissue loading,
blank if GAUGE dive
Dive Time,
max 999 min
SEL
ADV
to Data 3
or Main Menu
lowest
temperature
recorded elevation of
dive location,
SEA (or EL 2 - EL7)
LOG DATA 1 LOG DATA 2
SEL
ADV
LOG DATA 3
back to
Main Menu
highest PO
2
reached during
the dive
% O
2
Saturation
at end of dive, - - if the
dive entered
Violation Gauge Mode
gas mix
FO
2
(% O
2
)
NOTE: Log Data 3 only displays for nitrox
dives; it is bypassed if the dive was an air
dive.
*The i550 is not compatible with Aqua Lung Transmitters. It can only monitor and record the onboard, tank 1, gas pressure.
SET GAS
Within this submenu you can change the three available gas mixes from air to any nitrox mix between 21 - 100
FO
2
(% O
2
). Nitrox mixes are displayed with their corresponding MOD (Maximum Operating Depth) and the cur-
rent PO
2
Alarm setting for the selected gas. Default settings are FO
2
AIR with no PO
2
alarm value for Gas 1, and
OFF for Gas 2 and 3. Settings revert to the defaults when 24 hours elapse without conducting a dive. If you set a
nitrox mix value for any gas the PO
2
alarm value will default to 1.40 until changed. Additionally, the i550 allows for
each gas (1 - 3) to have individual PO
2
alarm settings.
NOTE: Once any Gas is set for Nitrox, any other Gas set for AIR will automatically be set to 21%. The
AIR option will not be displayed as an FO
2
setting until 24 hours elapse after the last dive.
NOTE: When FO
2
is set for AIR, oxygen related data (such as PO
2
, % O
2
) will not be displayed at any
time during the dive, on the surface, or in Plan Mode. Though these oxygen values will be tracked
internally for use in any subsequent nitrox dives.
NOTE: Gas 1 cannot be set to OFF.
NOTE: When Gas 2 or 3 are the active gas the message SPG (Submersible Pressure Gauge) will be
displayed on the Main screen in place of gas pressure.
NOTE: Only Set Gas 1 is shown here. Set Gas 2 and 3 work the same as Set Gas 1.
pressure used
during dive
(tank 1 only*)