Description
Second Hand ALADIN AIR Z O2
This unit was recently serviced (about 20 dives ago). It has 75% battery still on the main unit and the first stage transmitter is also a new one at the last service (updated from the original transmitter that was sold with the original unit).
In original hard case with manual.
It has a third party perspex cover on it. The elastic around the wrist band has some stretch in it but still fits fine. I also tie a knot in it when using to be extra sure.
The Air Z o2 is an adaptive computer that can be used in conjunction with conventional open circuit scuba or a Semi Closed Rebreather (SCR).
When it is used with a SCR in conjunction with the oxy2, the Air Z o2 provides the SCR diver with the data required in real time to monitor on line, the actual gas composition being breathed. This is important as actual O2 usage depends on the diver’s metabolism. High workloads require a higher supply of O2 than light workloads. So, the actual gas mixture in the rebreather depends on the premixed gas, selected flow and the diver’s O2 consumption (workload). Without a reliable measuring device, the diver has to rely on an estimated gas mix. Now, he knows the actual O2 fraction in the gas mix that he is breathing and the exact partial pressure of O2.
With reliable O2 measurement and appropriate warnings, it’s possible to optimize SCR gasflow to improve the performance and subsequent bottom time.
Protective screen shield
Illuminated display
Compact transmitter
Auto Turn On/Off
Automatic premix detection for SCRs with oxy2
Displays tank pressure - bar (psi)
User adjustable tank reserve pressure
Auto altitude compensation 0 - 4,000m (13,000ft)
Altitude adaptation time
Dive depth 0-99m (0-330ft)
Dive time
Maximum depth
No stops time
Adaptive decompression model Bühlmann ZH-L8 ADT
Required deepest deco stop (depth)
Required deepest deco stop (time)
Open Circuit Scuba remaining bottom time at current depth (RBT)
Open Circuit Scuba low air warning
Total time to ascend
Variable ascent rate 7-20m/min (23-67ft/min)
No stop time is less than 1 alarm
Open circuit scuba RBT is less than 3 alarm sound
Open circuit scuba RBT less than 0 alarm
Open circuit scuba high breathing rate alarm
SCR high breathing rate alarm
Open circuit scuba loss of transmission alarm
SCR loss of transmission alarm
Ignored decompression stop alarm
Ascent faster than 120% alarm
Ascent faster than 140% alarm
Ascent faster than 160% alarm
Ascent faster than 180% alarm
Open circuit scuba pO2 max has been reached alarm
SCR pO2 max has been reached alarm
Open circuit scuba CNS 02 percentage has reached 75% alarm
Open circuit scuba CNS 02 percentage has reached 100% alarm
SCR CNS O2 percentage has reached 100% alarm
SCR Oxygen fraction below 19% alarm
One SCR O2 sensor inoperative
Both SCR O2 sensors inoperative
Missed decompression stop instructions
Desaturation time
No fly icon and time
Surface interval
Logbook containing 19 dives (37 via PC)
Logbook containing 60 hours via Memo Mouse
Quantity of air used
Measures water temperature
Cautions diver on high microbubble levels
Long life battery
Percent of remaining battery life
User switchable metric/imperial
Open circuit scuba user adjustable air consumption warning
SCR adjustable sensitivity for workload detection with oxy2 (DataTalk)
SCR adjustable warning for pO2 with oxy2
Can be used without transmitter (tank data suspended)
Open circuit scuba easy to change oxygen mix percent from 21% to 99%
SCR O2 percentage 0 - 99%
SCR O2 Partial Pressure 0 – 2.5 bar (ATA) O2
Adjustable maximum oxygen partial pressure of Oxygen (pO2) via a PC