
Shearwater Research Inc.
Revision 1.1.0
14
Shearwater Petrel
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The bottom row is also used to show additional information�
By using only the bottom row for this additional information, the critical information contained
on the Top and Center Rows is always available during a dive�
The additional information that can be displayed on the bottom row includes:
Info
Shows additional dive information�
Screens:
Press SELECT (right button) to step through info screens�
Menus:
Allows changing settings�
Press MENU (left button) to enter menus�
Warnings:
Provide important alerts�
Press SELECT (right button) to clear a warning�
GF99:
The raw percentage of the Bühlmann allowable
supersaturation at the current depth�
@+5:
The predicted time-to-surface (TTS) if you were to stay at
the current depth for 5 more minutes�
Time-to-Surface (TTS)
The time-to-surface in minutes� This is the current time to
ascend to the surface including the ascent plus all required deco
stops�
Assumes:
• Ascent rate of 33 feet per minute (10 meters per minute)�
• Decompression stops will be followed�
• Programmed gases will be used as appropriate�
2O
@+5
8O%
GF99
35
TTS
The bottom row is used to display additional information
Summary of Contents for Petrel EXT
Page 1: ...Standalone EXT Models...