Shearwater Petrel 3, Руководство по эксплуатации

Страница: 41 / 70

Page 41
Doc. 13300-REC-RevB (2022-05-02)
Recreational Modes
Operating Instructions
RTR Display (Sidemount Only)
The Redundant Time Remaining (RTR)
display indicates how much gas time
remains if calculated only using the
pressure of the sidemount tank with less
pressure (i�e� all gas in the higher pressure
tank was lost)�
All of the same rules apply to RTR as they do to GTR
and it is calculated in exactly the same way�
The title indicates the tank that is currently being
used for the RTR calculation in dark grey�
AI Combination Displays
AI combination displays automatically populate the
AI info row to pack more information into the limited
available space� The format of the AI combinations is
based on AI settings� Some examples are given below�
This is not an exhaustive list of the possible displays�
See the bottom row menu section on page 57 to
learn how to place AI displays on your home screen�
AI Setting
Display
Tx & GTR
Tx & SAC
GTR & SAC
9.4. Sidemount AI
The Petrel 3 offers some features that make gas
tracking more convenient while sidemount diving�
These include:
- Sidemount tank switch
notifications
- Sidemount SAC calculations
- Sidemount GTR and RTR
All sidemount features are
enabled in the AI setup menu
by setting the GTR Mode
option to the desired SM
combination�
Use Identical Tanks For Sidemount
Sidemount features were designed assuming the sidemount
tanks are of identical volume. This removes the need to enter
tank volumes into the computer, simplifying the user interface
and reducing the chances of input errors.
Do not use sidemount AI features with tanks of differing
volumes.
RTR T1
45
GTR T1
5
GTR T1
2
AI Mode
Units
Tx Setup
GTR Mode
On
Bar
T1
T1
Next Edit
AI Setup
SURFACE
TTS
OC 18/45 0 0
O2/HE NDL
.0
DEPTH TIME
10
h
58
m
R
T1
210
B
A
GTR T1
45
SAC T1
1.1
Bar
min
AI Mode
Units
Tx Setup
GTR Mode
On
Bar
T1 T2
SM:T1+T2
Next Edit
AI Setup
R
A
T2
207
B
SURFACE
TTS
OC 18/45 0 0
O2/HE NDL
.0
DEPTH TIME
R
T1
210
B
A
GTR 45
SM
SAC 1.1
10
h
58
m
SURFACE
TTS
OC 18/45 0 0
O2/HE NDL
.0
DEPTH TIME
10
h
58
m
GTR 45
SM
SAC 1.1
T4 180
T3 198 T1 210
T2 207
AI Mode
Units
Tx Setup
GTR Mode
On
Bar
T1 T2 T3 T4
SM:T1+T2
Next Edit
AI Setup
AI Mode
Units
Tx Setup
GTR Mode
On
Bar
T1 T2
SM:T1+T2
Next Edit
AI Setup
SM Switch 21 Bar
3 00
Air
.
7
:
:
R
175
B
A
T1
R
153
B
A
T2
Sidemount Tank Switch Notifications
When the sidemount feature
is enabled switch notifications
will appear as a green box
highlighting the label of the
tank you should be breathing
from� This provides a subtle
reminder to switch tanks when
the difference between tank
pressures rises above the SM
Switch setting�
The switch notification setting has a range of 7 bar -
69 bar or 100 psi - 999 psi�