Aqua Lung i450T, Owner'S Manual

Page: 45 / 86

Doc. 12-7834-r04 (2/16/16)
45
DIVE OPERATION
© Aqua Lung International, Inc. (2015)
If the TMT is not reporting, a message will be displayed for 10 seconds before switching gas. Afterwards, the
i450T will calculate for the gas change but the Dive Main screen will show a lost transmitter signal.
If the current PO
2
value is greater than 1.6, then a warning not to switch will display. The i450T will maintain the
current gas without switching. The diver may overide the i450T and force the gas switch by pressing the SELECT
button during the DO NOT SWITCH TO message.
!
WARNING: Switching to gases with a PO
2
above 1.6 has a high risk of oxygen poisoning, convulsions,
and drowning. Doing so should always be avoided. It is intended as a last resort option because of the
likelihood of injury or drowning. Always dive within your training, experience, and skill level.
current
PO
2
value
of selected
gas
FO
2
setting