Gas Switching - Sherwood Scuba SAGE Manual

WARNINGS:
• Historically, many accidents and near misses have occurred by switching to the wrong gas at the wrong depth. DO NOT attempt gas switch decom-
pression dives without proper education and training to do so from an internationally recognized training agency.
• Diving deeper than 130 ft (39 m), will greatly increase your risk of decompression sickness.
• Decompression diving is inherently hazardous and greatly increases your risk of decompression sickness, even when performed according to the
dive computer's calculations.
• Using a Sage is no guarantee of avoiding decompression sickness.
• The Sage enters Violation Mode when a situation exceeds its capacity to predict an ascent procedure. These dives represent gross excursions into
decompression that are beyond the boundaries and spirit of the Sage's design. If you are following these dive profiles, Sherwood advises that you
should not use an Sage.
• If you exceed certain limits, the Sage will not be able to help you get safely back to the surface. These situations exceed tested limits and can result
in loss of some functions for 24 hours after the dive in which a violation occurred.
Overview
• All dives begin with GAS 1.
• The GAS defaults to # 1 after 10 minutes on the surface.
• Gas switches can only be made when a AIR/NX Dive Main screen is displayed.
• Gases cannot be switched while on the surface.
• The Gas Switch Menu cannot be accessed during the sounding of alarms.
• If an alarm strikes while in the Gas Switch Menu, the switch operation is terminated (reverting to the AIR/NX Dive Main screen).
• The active gas and gas 3 (if set to OFF) will not display in the Gas Switch Menu. If gas 2 is set OFF, the Gas Switch Menu will not be available.
The current PO value will display in red if the value is greater than the max PO
2
WARNING: Switching to gases with a PO
be avoided. It is intended as a last resort option because of the likelihood of injury or drowning. Always dive within your training, experience,
and skill level.
AIR/NX DIVE MAIN
SAFE MINUTES
26
87
DIVE TIME
0:43
FT
2349
GAS 1
NX 32
to Switch
Gas Menu
© Pelagic, 2017

GAS SWITCHING

above 1.6 has a high risk of oxygen poisoning, convulsions, and drowning. Doing so should always
2
PSI
to exit menu
without gas
switch
set for the gas.
2
CHOOSE GAS
GAS SWITCH
GAS FO2
2 NX 32
3 O2
to toggle
selection
If no button action for 10 seconds, the Sage
reverts to the main screen without switching
gases.
41
SAGE MANUAL
PO2
to select
O.71
gas
2.12
red if value is
greater than
alarm setting
to toggle
selection
Doc. No. 12-7864-r06 (8/21/17)