Seac Sub AQUALAB, Owner'S Manual

Page: 27 / 38

• Partial pressure warning:
The maximum depth is calculated based on the oxygen mix ratio setting .
(For details, see the appendix).
When a certain portion of the maximum depth value has been exceeded, the warning
( PO
2
LIMIT ) is displayed and an alarm is sounded.
This warning is recorded in the dive log.
The warning setting and alarm operate at the stages described below:
•
Current depth value is at least 90% of maximum depth value (based on partial
pressure): The alarm sounds for three seconds and the warning display ( PO
2
LIMIT )
blinks for three seconds.
•
Current depth value is equal to or greater than maximum depth value (based on partial
pressure): The alarm sounds for three seconds and the warning display ( PO
2
LIMIT )
blinks and continues blinking until the current depth is shallower than the maximum
depth.
Partial pressure warning
• Residual oxygen level warning
An alarm is sounded when the residual oxygen level reaches seven or eight level
indicators on the bar graph display.
There are two kinds of warnings, as described below:
•
Warning when 7 level indicators are displayed:
The alarm sounds for three seconds and the warning display blinks for three seconds.
This warning is not recorded in the dive log.
•
Warning when 8 level indicators are displayed:
The alarm sounds for three seconds and the warning display blinks and continues to blink
until seven or fewer level indicators are displayed. (see page 27).
This warning is recorded in the dive log.
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