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CHROMIS USER MANUAL
You should not perform a dive as long as
the no-dive warning is displayed on the
computer screen. If the warning is prompted
by microbubble accumulation (as opposed
to CNS O
2
over 40%) and you dive anyway,
you will have shorter no-stop times or longer
decompression times. Moreover, the duration
of the microbubble warning at the end of the
dive can increase considerably.
4.7.3 SOS
If you stay above a depth of 0.8m/3ft for
more than 3 minutes without observing a
prescribed decompression stop, Chromis
will switch into SOS mode. Once in SOS
mode Chromis will lock up and will be
inoperable as a dive computer for 24 hours.
If it is used for diving within the 24hours
of an SOS lock, it will automatically
switch to gauge mode and provide no
decompression information.
WARNING
Violating a mandatory decompression obligation
may result in serious injury or fatal issue.
Serious injury or fatal issue may result if a diver
does not seek immediate treatment should any
signs or symptoms of decompression sickness
occur after a dive.
Do not dive to treat symptoms of decompression
sickness.
Do not dive when the computer is in SOS mode
The display shows the same information as
in presence of desaturation, but at the top
row SOS is displayed.
4.7.3.1 Desaturation reset
Chromis allows you to reset the
desaturation of the computer. Any tissue
saturation information from a recent dive
will be reset to zero and the computer
treats the next dive as a non-repetitive dive.
This is useful when the computer is loaned
to another diver who has not dived in the
last 48 hours.
NOTE: After a desaturation reset the
change between the modes: GAUGE,
APNEA and SCUBA are possible
immediately. However, since the
GAUGE and APNEA modes are not
tracking your tissue nitrogen loading,
it is recommended to keep the initial
intervals between changes on modes.
WARNING
Diving after having reset the desaturation is
extremely dangerous and is very likely to cause
serious injury or a fatal issue. Do not reset the
desaturation unless you have a valid reason to
do so.
NOTE: Removing and replacing the
battery will not reset the desaturation.
Chromis stores tissue saturation
information in a non-volatile memory.
For the time during which the
computer is without battery, the
desaturation calculation is frozen and
resumes from where it had left off as
soon as a new battery is installed.
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