Set Max Depth Reached; Ascent Rate - Uwatec Aladin ONE Matrix User Manual

The O % mix is displayed as long as the
2
CNS O % is less than 50%. More than 50%
2
and the CNS O
3.4.5

Set max depth reached

If the set max depth has been reached (default
40m/130ft) and the depth alarm is turned on,
the alarm tone sounds and the depth display
flashes. Ascend until the depth stops flashing.
3.4.6

Ascent rate

Optimal ascent rate varies depending on
depth between 7 and 20m/min (23 and
67ft/min). It is displayed as a percent of
the reference variable ascent rate. If the
ascent rate is greater than 100% of the set
value, the vertical black arrow with "SLOW"
appears. If the ascent rate exceeds 140%,
the arrow starts flashing.
The Aladin One provides an audible alarm
if the ascent rate is 110% or greater. The
intensity of the alarm increases in direct
proportion to the degree that the prescribed
ascent rate is exceeded.
ALADIN ONE USER MANUAL
% is displayed.
2
WARNING
Too fast
ascent
indicator
Ascent rate
WARNING
The prescribed ascent rate must be observed
at all times! Exceeding the prescribed ascent
rate can lead to microbubbles in the arterial
circulation which can lead to serious injury or
death due to decompression sickness.
• In case of an improper ascent the Aladin
One may require a decompression stop,
even within the no-stop phase, because
of the danger of microbubble formation.
• The decompression duration necessary
for the prevention of microbubbles can
increase massively if the ascent rate is
exceeded.
• From great depths a slow ascent may
cause heightened saturation of tissues
and an extension of both decompression
duration and total ascent time. At shallow
depths, a slow ascent may shorten the
decompression duration.
• Display of the ascent rate has the
priority over "CNS O
2
Excessive ascent rates for longer periods
are entered in the logbook. The following
ascent rates correspond to the 100% value
in the Aladin One.
DEPTH
m ft
0 0
6 20
12 40
18 60
23 75
27 88
31 101
35 115
39 128
44 144
50 164
".
ASC SPEED
m/min ft/min
7 23
8 26
9 29
10 33
11 36
13 43
15 49
17 56
18 59
19 62
20 66
15