Page 42
Doc. 13301-Tec-RevB (2022-05-25)
Technical Modes
Operating Instructions
Check that your tank valve is open
Always take a few breaths from your regulator or purge your
regulator’s second stage while monitoring your tank pressure
for a full 10-15 seconds prior to entering the water to ensure
your tank valve is turned on.
If the first stage regulator is charged but the tank valve has
been closed, the breathing gas available to the diver will
decrease rapidly and within a few breaths the diver will face
an “out of air“ situation. Unlike an analog gauge, the air
pressure reported on the Perdix 2 will only update every 5
seconds, so the pressure reported by the Perdix 2 must be
monitored for longer than that (we suggest 10-15 seconds) to
ensure the tank valve is open.
Including a regulator purge test followed by 10-15 seconds of
air pressure monitoring before entering the water as part of
your pre-dive safety check is a good way to mitigate this risk.
Add an AI display to the home screen
AI information is automatically displayed as an info
screen when the AI feature is enabled, however,
the main screen will not show AI information until
manually added�
In technical diving modes, add AI to the home screen
in the System Setup > Center Row menu�
The center row can be customized extensively to
show a wide variety of information�
Find more information about how to do this up in the
Center Row section on page 67�
SURFACE
TTS
OC 18/45 0 0
O2/HE
NDL
.0
DEPTH
TIME
10
h
58
m
R
T1
210
B
A
R
T2
207
B
A
0
%
SurGF
Change
Save
Center Row
R
T1
210
B
A
R
T2
207
B
A
SurGF
0
%
Surf GF