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ATOM 3.0 OPERATING MANUAL
© 2002 Design, 2011 Doc. No. 12-5216-r02 (9/6/11)
HIGH O2 (NORM only)
Warning >> at 80 to 99% (240 OTU).
Alarm >> at 100% (300 OTU).
When O2 reaches the Warning level (80%); the audible sounds during which the O2 value with O2% icon will flash (in place of
DTR) (Fig. 114), then DTR will be restored. The O2 icon will remain on flashing (if OTR is DTR) until O2 is < 80%.
If O2 reaches the Alarm level (100%); the audible sounds again, the graphic UP will alternate with the O2 value until on the
surface (Fig. 115).
• S (< 2 sec) - to acknowledge/silence alarm.
• A (< 2 sec) - to access ALTs (similar to those for No Deco).
• M (< 2 sec) - to access Gas/TMT Switching.
• L (press) - to activate Backlight.
High O2 during Deco
When O2 reaches the Warning Level (80%); the audible sounds during which the O2 value with O2% icon will flash (in place of
Stop Depth/Time until the audible is silenced, then Stop Depth/Time will be restored.
• S (< 2 sec) - to acknowledge/silence alarm.
When O2 reaches 100%, the audible sounds and the O2 value with O2% icon will alternate with the graphic UP until on the
surface (Fig. 116). The full TLBG remains on solid as a reminder of Deco.
• S (< 2 sec) - to acknowledge/silence alarm.
• A (< 2 sec) - to access ALTs (similar to those for Deco).
• M (< 2 sec) - to access Gas/TMT Switching.
• L (< 2 sec) - to activate Backlight.
High O2 on Surface
Upon ascent to 2 FT (0.6 M) for 1 second (surfacing), the Dive Main screen is displayed for 10 minutes with access to the Dive
ALTs allowed. Surface Interval Time with the SURF icon flashing (Fig. 117) will be displayed in place of Depth.
> If O2 is 100%, the value will flash on the Main until it is < 100%, then it will be replaced with dashes (if Violation) until 10
minutes elapse, then the graphic NOR.
> If you surface due to 100% O2 without having completed the Deco obligation, the full TLBG and O2 value (100%) will flash
for the first 10 minutes, then operation will enter VGM.
> Access to Dive ALTs and Gas/TMT Switching is allowed during the first 10 minutes, then access to the other NORM Surface
group selections is allowed.
Fig. 114 - O2 WARNING
(during audible)
Fig. 115 - O2 ALARM MAIN
(No Deco)
alternate
with UP
Fig. 116 - O2 ALARM MAIN
(during Deco)
Fig. 117 - O2 ALARM MAIN
(on surface, No Deco)
alt w/
UP