Operation Manual


Update
Tec SW can be downloaded to any Galileo
computer like a normal software update. To
obtain the Trimix update please contact your
Authorized SCUBAPRO UWATEC dealer or
see our web site at .
F
Note:
 Tec SW upgrade will only enable the
algorithmuse forHelium. Ifyou have
a Galileo Terra or Luna withoutPMG
upgradeTecSWwillnotallowtheuse
of multiple tanks. The PMG upgrade
mustbedoneseparatelyandpriorto
upgradingtotheTecSW.
1. Differences between the
Standard Galileo SW and
Tec SW
1.1 Model Uwatec ZH16-ADT DD
For years Uwatec has successfully used
the Bühlmann ZHL-8ADT model for
recreational and nitrox computers. For our
Trimix version, the algorithm ZHL-16 has
been used as the basis. This widely used
and referenced algorithm for technical
diving has been modied for middle
compartments, becoming the version DD.
Uwatec uses MB levels like gradient factors
are used in the original ZHL-16 to adjust
the model to be more conservative. The
standard MB level setting is 3.
Figure1-EffectofMBlevelsettingstothedive
prole.MB0=blue,MB3=yellow,MB5=brown.
Our experience in adaptive algorithm
development has also been integrated into
the Trimix version in order to customize it
for individual divers and their dive plans.
Uwatec recommends using the workload
feature when making technical dives and
also the Heart Rate feature. When the dive
goes as planned there is no effect to the
decompression schedule. However, when
workload is high more decompression time
will be required.
Figure 2 - Workload effect on dive prole. Low
WL=Blue,HighWL=brown.
Adaptive algorithm additionally incorporates
into the calculation the water temperature,
workload and micro bubble formation.
1.2 Trimix
Tec SW uses standard technical diving gas
mix markings: Oxygen%/Helium%.
For example a mix containing 18% of
oxygen and 40% of helium is shown as
18/40.
1.3 10 tanks
In technical diving, especially with Trimix
blends, the decompression efciency
becomes extremely important. Gas mixes
with high helium content and low oxygen
content are not well suited for decompression.
For example, where two decompression
mixes are in most cases enough when air or
nitrox is used as a bottom gas, in the case of
trimix the optimal off gassing requires more
decompression mixes.
The order in which gases are used is not
restricted according to oxygen content as
in our standard Galileo software. The PMG
will sort and suggest the use of the gases
according to given Absolute Minimum
Depth (AMD) and Maximum Operating
Depth (MOD) values. The diver may also
switch the mixes manually as described in
the main Galileo manual.