Shearwater Petrel
Revision 1.1.0
13
Shearwater Research Inc.
The Bottom Row
The bottom row displays the current mode, gas and decompression information�
Circuit Mode
The current breathing configuration. One of:
OC = Open circuit (when CC available, displays
Yellow
to
indicate bailout condition)
CC = Closed circuit
SC = Semi-closed circuit (only available on EXT model)
Current Gas (O2/He)
The current gas shown as a percentage of Oxygen and Helium�
The remainder of the gas is assumed to be Nitrogen�
In closed circuit mode, this gas is the diluent� In open circuit
mode this is the breathing gas�
Displays in
Yellow
when there is better deco gas available than
the current gas�
No Decompression Limit (NDL)
The time remaining, in minutes, at the current depth until
decompression stops will be necessary� Displays in
Yellow
when
the NDL is less than 5 minutes�
Once NDL reaches 0 (i�e� deco stops needed), the NDL display
is just wasting space� To address this, a few different values can
be set to replace the NDL (see Dive Setup
The options are:
CEIL:
The current ceiling in the current units (feet or meters)�
Flashes Red
if you ascend shallower than the current ceiling�
CC
CC
SC
OC
or
OC
21/OO
O2/HE
10/5O
O2/HE
21/OO
O2/HE
2O
5
NDL
NDL
74
CEIL
21% O2
79% N2
Air
{
Tx
{
10% O2
50% He
40% N2
a better deco
gas available
Содержание Petrel EXT
Страница 1: ...Standalone EXT Models...