Uwatec Z1, User Manual

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8-6. Setting/Switching Gas O
2
%
Up to 4 gases can be programmed before a
dive and switched during diving. Gas 1 is al-
ways the selected gas mixture at the beginning
of a dive.
How to Set O
2
%
1. Go to Plan Mode:
In Watch Mode or Surface Mode, press the PLAN button. [PLAN]
appears for about 1 second, then the Z1 switches to Plan Mode.
(NOTE: The Z1 will not make this switch when in Gauge Mode.)
2. Press-and-hold the ADJUST button for
about 2 seconds. After [SET] [Hold] fl ash-
es, release the button when [GAS1] [21-
100%] is displayed.
3. Press the LED/LOG button or the PLAN
button and set the O
2
% from 21% to 100%.
(22% to 100% are Nitrox settings.)
In Nitrox (EANx) diving, the O
2
% must be set for each dive. The higher the
O
2
% setting, the shallower the allowable maximum diving depth.
NOTE: You can press-and-hold the LED/LOG button or the PLAN button to
fast-forward through the O
2
% settings. The Z1 pauses at 21%, 32% and
50%.
CAUTION
4. For accelerated decompression using multiple gases, press the AD-
JUST button to open the GAS2 screen, where you can set the O
2
% using
the same procedure outlined above. When doing multi-gas diving,
Gases 2, 3 and 4 can be set in the same way.