Ratio iX3M Manuel utilisateur
iX3M Dive Computer
User Manual
ver. 1.1
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Warning!
To receive all updates of this manual and notice of future
updates of the “iX3M” by e-mail, please send a message writing
“iX3M”
to the following address: update@ratio-computers.com
This service is highly recommended
and it is completely free of charge.
For further support, have a look at the tutorial videos
soon available on www.ratio-computers.com
For assistance by mail write to support@ratio-computers.com
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Think Green
If possible do not print this manual.
Use your tablet or your PC to consult it .
If you have to print this manual, follow the WWF®guide showing how to save
paper and which type to use.
http://www.wwf.it/tu_puoi/vivere_green/ecoconsigli/ecoconsigli_in_ufficio/
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CONTENTS
Introduction
Importan Warnings
General Warnings 7
Danger Warning 9
Diving with Mix 11
Limits of diving computers 12
Care and Maintenance 12
Computer’s technical characteristics 14
Hardware 14
Certification 14
Software 15
Summary of technical characteristics 16
How to recharge the Battery 17
Diving in cold or freezing waters 19
DAN DL7 20
Privacy 20
The RATIO iX3M outside the Water:
The main screen 21
The RATIO iX3M Menu 25
MAIN MENU26
DIVE SET for RATIO iX3M Deep 27
DIVE SET for RATIO iX3M Tech+ & iX3M Reb 28
DIVE SET for RATIO iX3M Tech+ & iX3M Reb 29
Deco Stop for RATIO iX3M Tech+ & iX3M Reb 32
CCR Settings for RATIO iX3M Tech+ & iX3M Reb 33
MIX Table 34
Diluent Table for RATIO iX3M Tech+ & iX3M Reb 35
Dive Alarms 36
NDL (Non Decompression Limit) Planner 37
Decompression Planner 38
Logbook 39
SYSTEM SETTINGS 40
Display Set 41
General Set (ora e data) 42
PC Mode (how to connect the iX3M to PC) 42
Reset to Default (reset the factory data) 43
Compass settings (Compass) 44
Model, serial number and operative system. 45
SWITCH OFF (Manual switching off). 45
Compass 46
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CONTENTS
The RATIO iX3M when diving
Dive Screen 48
Main Data 48
Current dive’s profile: 51
Tissues saturation when diving:
The diagram represents the 16 tissues which are
taken into consideration by the two decompressive
algorithms (BUL or VPM). 51
The yellow lines represent the nitrogen levels .
The green lines represent the helium levels (if pre-
sent) 51
Decompression Chart: 52
Compass when diving53
Applications when diving 54
Mix change during the dive 55
Setting change during the dive 56
The iX3M in GAUGE mode
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Introduction
Thank you for having purchased the RATIO® computer.
RATIO®, with the quality of its products, always stands by you to guarantee comfort, leisure and safety when diving.
The RATIO® computer that you have purchased is extremely innovative, with a software allowing you to carry out both
recreational and technical dives.
The RATIO® iX3M computer includes decompressive algorithms supporting, according to the different models, Air Nitrox,
Normoxic Trimix dives (iX3M DEEP), Trimix and CCR (iX3M TECH + and iX3M REB) and its processor calculates in real time
your dive’s specific deco profile; all this ensure calculation flexibility and your personal safety.
Check periodically the presence of possible updates of this manual on web site www.ratio-computers.com
The manual version (e.g. 1.0) is shown on its cover.
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Importan Warnings
General Warnings
It is necessary read this manual carefully before using the computer RATIO®. A wrong use of this computer or its accessories
will nullify the warranty and could cause permanent damages to the device and/or its accessories.
• The diving computer DOES NOT replace an adequate diving training and should be used only by those divers who have
been opportunely trained.
• The RATIO® computer is an ausiliary instrument to the dive, so it is compulsory having always an appropriate diving chart
in order to carry out the decompression phase in case the device is malfunctioning.
• Diving involves risks relating to decompression disease, Oxygen toxicity and other risks relating to the diving itself. Even
a careful reading of this manual and the use of this device don’t prevent possible dangers. Anyone who doesn’t know or
doesn’t accept consciously these risks, must not dive with iX3M computer.
• Diving has some intrinsic risks which cannot never be completely eliminated.
No computer or diving chart can guarantee that the risk of Decompression Disease (DD) or Oxygen toxicity to the central
nervous system don’t exist, even if the diver follows meticulously and accurately the indications given by the computer or
the diving chart.
• The computer cannot take into consideration the individual physiological variations which might change day by day. For
this reason it is good practice to use the device in a conservative and preventive way, remaining within the limits indicated
by the computer, to minimize the risks of DD and Oxygen toxicity to the central nervous system.
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• The computer doesn’t replace the learning of the diving decompression charts which we recommend to have always as
backup along with a depth gauge and a watch.
• It is forbidden to share a unique computer for two divers while diving; every diver must have his/her device at his/her
wrist, which can give information to him/her only.
• It is forbidden to dive with a computer which has not taken into consideration the previous dives a diver made; the
computer calculation CANNOT use unknown data or take into consideration dives which it has not done.
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Danger Warning
The computer IS NOT meant for a PROFESSIONAL use.
The computer is meant exclusively for a sport, recreational or technical use.
• A use which is not compliant to what has been said above, could expose the diver to an increasing risk of incurring in the
Decompression Disease (DD). For this reason we discourage its use in case of professional or commercial dives, unless it is
used as an operator’s further support device.
• Before diving it is necessary to check the battery authonomy. DO NOT dive if the battery level is at 30% or at lower
percentages; make sure that the screen doesn’t show malfunctioning signs. It must be read clearly.
• Check always that settings are the ones desired. Don’t let the computer be manipulated by someone else before diving. In
this case, check that settings are the ones you desire.
• Consider that our body experience changes everyday. The computer cannot take into consideration all these changes. If
you don’t feel at your best physical conditions or if you feel physical problems, don’t dive.
• Avoid all behaviours increasing the risks connected to the DD such as rapid ascents, yo-yo dives, violation of compulsory
decompressive stops, dives with too close surface intervals and any behaviour which is contrary to the common sense and
to the training received.
• This device doesn’t allow its use without having the due skill, given by a specifi c training.
The failure to comply with the basic rules of diving exposes the diver at death danger.
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• We recommend to do dives within the safety curve, to reduce the risks inherent to the Decompression Disease (DD).
• We recommend dives not deeper than 40 mt or according to the oxygen percentage contained inside the tank.
Maximum PPO2 1,4 BAR
• Respect the ascent speed recommended by the device; an excessive ascent speed exposes the diver to death danger.
• The computer calculates the total ascent time but this could be longer than the one visualised, according to some
parameters calculated by the computer during the whole dive. Trying to ascend at the correct speed and respect the
visualised depth of the stops helps to respect this time.
• Respect always the No FLY Time: it is forbidden to take a plane if the No FLY Time icon is still visible on the screen.
Remember to plan the last dive of the series taking into consideration the advices given by DAN (Divers Alert Network).
• Even respecting all expected intervals, the current Hyperbaric Medicine cannot exclude the onset of the Decompression
Disease in a plane after diving .
Table des matières
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