SUUNTO COBRA3 User Guide - Manual (Page 16)

WARNING
Always use realistic SAC rates and conservative turn pressures
during dive planning. Overly optimistic or erroneous gas planning
can result in the exhaustion of breathing gas during decompres-
sion or in a cave or a wreck.
WARNING
ENSURE THE WATER RESISTANCE OF THE DEVICE! Moisture
inside the device or battery compartment will seriously damage
the unit. Only an authorized SUUNTO dealer or distributor should
do service activities.
NOTE
It is not possible to change between AIR, NITROX and GAUGE
modes before the instrument has counted down the no-fly time.
There are, however, exceptions to this: You can change from AIR
to NITROX mode, as well as from AIR or NITROX mode to
GAUGE mode even during the no-fly time.
When planning both air and nitrox dives during the same dive
series, you should set the instrument in NITROX mode and
modify the gas mix accordingly.
In GAUGE mode the no-fly time is always 48 hours.
16