User's Manual

Suunto EON Steel
User guide
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5 BEFORE DIVING
NOTE: EON Steel is on surface mode always, when below 1.2m/4ft.
5.1 Dive modes
As a default EON Steel has three (3) different dive modes: Nitrox, Trimix
and Gauge (bottom timer). You could pick one matching your diving. Dive
mode selection is found on menu path “Menu > Dive settings > Mode”.
NOTE: You could later customize these modes for any kind of diving
or even add additional dive modes, depending the way you dive. This is delt
later in section 9.5 (Customizing EON Steel).
Nitrox and trimix modes are intended for diving with decompression
information, like no decompression stop time or decompression
ceiling/ascent time. Decompression algorithm used in EON Steel is Suunto
Fused RGBM. You can find more info about the algorithm in section x.x.
Gauge is a bottom timer mode and thus has no decompression information
or calculation included.
NOTE: After diving in gauge mode, decompression calculation is
locked for following 48 hours. This means that if during this time nitrox or
trimix mode is selected, then their decompression calculation will not work.
5.2 Personal and altitude settings for algorithm
There are several factors that can affect your susceptibility to DCS. Such
factors vary between divers and also for the same diver from one day to
another. The personal factors which tend to increase the possibility of DCS
includes things:
 cold exposure – water temperature less than 20 °C / 68 °F
 below average physical fitness level
 fatigue
 dehydration
 stress
 obesity
 patent foramen ovale (PFO)
 exercise before or after dive
The five-step personal setting is available for adjusting algorithm
conservatism. You could find the personal setting in menu path “Menu >
Dive settings > Parameters > Personal”.
Personal level
Explanation