Technical information

1 Terminology/Symbols

III Uwatec

Aladin

Air Z O

When used with an Oxy2 the Air Z O

gives no warnings regarding the

reserve of gas! Check frequently the pressure gauge.

Tank pressure: Only available if a pressure transmitter is used.

RBT: (Remaining Bottom Time, only with pressure trans-

mitter) time, for which the gas mixture supply is suffi-

cient at the current depth, until ascent must be started.

Illustration on page 43 and explanation on page 65.

1.4 Nitrox information (O

information)

For dives with compressed air in normal recreational diving nitrogen is the decisive gas for the decom-

pression calculations. When diving with nitrox, the toxicity of oxygen rises with the increase of the portion

of oxygen and increasing depth and can limit dive time and the maximum depth. Aladin

Air Z O

inclu-

des this in the calculations and displays the necessary information:

%>: The Oxy2 is mounted “in line“ to the inhalation hose of the semi closed

rebreather (SCR) and measures the actual oxygen fraction of the inspired gas

mixture. This is the basis for the calculation of both oxygen toxicity and decom-

pression. The Aladin

Air Z O

warns the diver acoustically and optically if the

oxygen fraction is lower than 19%.

%MIX> Portion of oxygen: For open circuit systems (pressure transmitter) the por-

tion of oxygen in the Nitrox mixture has to be entered manually. It can be set

between 21% (normal compressed air) and 99% O

<pO

> Partial pressure of oxygen: When used with an Oxy2 the Aladin

Air Z O

shows the actual value.

tank data

psi

WARNING