Bedienungsanleitung UWATEC Galileo Trimix software (Seite 5 von 14) (Englisch)

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It is possible to manually select a gas while

diving which may have unsuitable high or

low oxygen content or narcotic effect for

that depth. The gas selection is not limited

by the computer due to possible emergency

situations that may arise. Selecting the

improper gas may result in serious injury or

death.

1.4 Minimum and Maximum

Operating Depth

Absolute Minimum Depth (AMD) and

Maximum Operating Depth (MOD) are

calculated from the oxygen content in the

mix. The ppO2 that is given by the user is

divided by the oxygen fraction. The result

will be pressure, which is converted to

depth. The maximum MOD is valid for all

gases, while the minimum AMD is only

applicable to a gas mix where the oxygen

fraction is less than air.

F

Note:

 Air(21/0)givesdifferentMODthanfor

example Trimix 21/10. The reason is

Galileousesamoreprecisevaluefor

theoxygenintheair,whichis20.7%.

1.5 PDIS for both N2 and He

Prole Dependent Intermediate Stop (PDIS),

as described in the main manual, has been

extended to both Nitrogen and Helium

gases. The optimal off gassing depth will be

indicated when PDIS is enabled. PDI stops

are not obligatory, but will potentially assist

in reducing possible bubble formation.

1.6 Oxygen Toxicity Units (OTUs)

During long decompression dives, the

diver’s body will be loaded with high

oxygen concentrations for a longer period

of time. There are two limits that need to

be monitored; the Central Nervous System

(CNS) clock (described in main manual)

and the Oxygen Toxicity Units OTUs.

For OTU credits and limits the NOAA values

are used.

1.7 Ascent speed

The optimal ascent rate is fast enough to

prevent further compartment saturation, but

slow enough to prevent bubble formation

in tissues. When making decompression

dives with mixed gases this becomes

an important factor. Galileo allows faster

ascent at greater depths and slower ascent

at shallower depth (see Ascent Speed

Alarm Limits). Be aware that the alarm limit

only indicates ascents which are too fast

and not optimal.

Maximum allowed ascent speed has been

reduced compared to the standard Galileo

SW. Standard SW ascent speed is used

when Trimix is disabled. When TMx setting

is enabled the slower ascent speeds are

taken in use.

F

Note:

 ReducedAscentspeedincreasesthe

TotalAscentTime(TAT)thatisshown

duringdiving.

2. Diving with the Galileo

Tec SW

Warning: Before performing Trimix dives

with the Galileo you should practice no-stop

recreational diving to become accustomed

to the interface and functions of the diving

computer.

Galileo Tec SW has some screen differences

on the diving displays when compared to

the standard Galileo software.

English

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