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OMITTED DECOMPRESSION
The most common ERROR MODE results from omitted decompression, when the diver stays above the ceiling for more than
three minutes. During this three-minute period the Er warning will blink alternating with the CEILING/ASC TIME display. The
instrument will continue to function normally, if the diver descends below the ceiling within three minutes.
After this the dive computer will enter a permanent ERROR MODE. In the permanent ERROR MODE the instrument will not
show no-decompression or ascent times. Only a permanent Er warning is shown in the center window. However, all the other
displays will function as before, to provide information for ascent.
At the surface mode, the CEILING/ASC TIME symbol will blink in the center window and at the dive planning mode a
permanent Er is shown instead of no-decompression times.
EXTREME CEILING DEPTH OR DECOMPRESSION RANGE
When the ceiling descends to the depth of 10 m [30 ft] or when the ASCent TIME is longer than 63 minutes, the Er warning will
start to blink in the center window. If the diver immediately ascends, the dive computer will continue to function normally after
the ceiling is back to below 10 m [30 ft] or the ASCent TIME is shorter than 63 minutes.
If the ceiling descends to the depth of 12 m [39 ft] even momentarily the instrument will enter the permanent ERROR MODE.
NOTE: Ascent time is not displayed in the Octopus II dive computer.
