Page 24
Doc. 13301-Tec-RevB (2022-05-25)
Technical Modes
Operating Instructions
Types of Notifications
There are two types of notifications displayed by this
dive computer� Primary notifications and persistent
notifications�
Primary Notifications
Each primary notification displays as a message in
yellow
across the bottom row until dismissed�
The notification is dismissed by pressing either button�
5
:
00
.
2
:
:
37
11
HIGH PPO2
Warning
Confirm
For example, this “HIGH PPO2” message will appear if
the average PPO2 goes above the high PPO2 limit for
more than 30 seconds�
The highest priority notification is listed first� If multiple
errors occur simultaneously, the notification with
the highest priority will be displayed� Clear the first
notification by pressing a button to see the next one�
If vibration alerts are on, the unit will vibrate when
the alert first occurs and every 10 seconds until it is
acknowledged�
A list of primary notifications a diver may see is given
on page 25�
Sample Primary notification -
High PPO2 Warning
Limitations Of Alarms
All alarm systems share common weaknesses�
They can alarm when no error condition exists
(false positive)� Or they can fail to alarm when
a real error condition occurs (false negative)�
Respond to alarms if you see them, but
NEVER depend on them� Your judgment,
education, and experience are your best
defenses� Have a plan for failures, build
experience slowly, and dive within your
experience�
5
:
00
Nx32
.
2
:
:
1.49
62
SurGF
PPO2
%
37
11
Persistent Notifications
Persistent notifications
complement primary
notifications, displaying while a
dangerous condition is present
until the condition is resolved�
Persistent notifications cannot
be cleared while the condition
that caused them persists�
Example: when PPO2 is in an
unsafe range,
• Center row text that shows
a “Low PPO2” or “High
PPO2” message�
• PPO2 and gas values are
highlighted and flash�
These persistent notifications
will clear automatically once a
safe PPO2 is restored�
STOP TIME
TTS
OC
10/50
99 3
O2/HE
NDL
Low PPO2
DEPTH
TIME
3.0 92 3 2
0.13
Sample "Low PPO2"
Persistent Notification
STOP TIME
TTS
OC
21/40
0 56
O2/HE
NDL
High PPO2
DEPTH
TIME
67.0 22 130 1
1.62
Sample "High PPO2"
Persistent Notification