Suunto SS019015000 Scuba Diving Equipment User Manual


 
It is possible to dive with the device when the algorithm is locked,
but instead of the decompression information, ER is shown.
If you dive again in this error state, the algorithm lock time resets to
48 hours when you surface.
3.15 Oxygen calculations
During a dive, Suunto DX calculates partial pressure of oxygen
(PO
2
), central nervous system toxicity (CNS%) and pulmonary
oxygen toxicity, tracked by OTU (oxygen toxicity units).
The oxygen calculations are based on currently accepted exposure
time limit tables and principles.
When the dive computer is set in MIXED mode, the DIVE PLANNING
mode calculates using the O
2
% and P O
2
values that are currently
in the computer.
Oxygen related information displayed by the dive computer is also
designed to ensure that all warnings and displays occur at the
appropriate phases of a dive. For example, the following
information will be shown before and during a dive when the
computer is set in
MIXED
mode:
The selected O
2
% on the alternative display
OLF% alternative display for either CNS% or OTU% (whichever
is larger)
Audible alarms are given and the OLF value starts to blink when
the 80% and 100% limits are exceeded.
Audible alarms are given and the actual PO
2
value blinks when
it exceeds the preset limit.
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