® English Active Light English OPERATING MANUAL THE SYSTEM ® AIR Z O2 SWISS MADE BY UWATEC AG
Operating scheme for surface functions B and E B and + Sleep Surface Sleep 1 2 5 4 Input stage O2 % MIX B and – Input stage Ready or Surface (or 3min) automatically min) (or 3 O2 % MIX (or 3min) 3 (or 5sec Battery capacity depth LOGBOOK 3m in) LOGBOOK dive time DO NOT FLY LOGBOOK CNS O2 LIMIT S L O W % NO STOP max.
Important remarks concerning signal words and symbols Remarks: Informations and tips which are important for optimal use of the functions of your Aladin® Air Z O2. Attention: Informations and tips which are important for optimal use of the functions of your Aladin® Air Z O2. Danger! Indicates a potentially hazardous situation which, if not avoided, could result in death or serious injury.
Safety considerations You must carefully read and understand this entire manual before using your Aladin® Air Z O2. Diving has many inherent risks. Even if you follow the instructions of this manual in a careful manner, it is still possible that you may be seriously injured or die from decompression sickness, oxygen toxicity or some other inherent risk of scuba Nitrox or compressed air.
her insufficient decompression calculations or a too low calculation of the oxygen-toxicity! – Always check the diving limits considering the oxygen content and standard sports diving procedures (decompression sickness, oxygen toxicity). – Do not dive deeper than 40 metres. – The danger of nitrogen narcosis has to be taken into consideration for all dives regardless of the gas mixture. The Aladin® Air Z O2 gives no warning about this.
Aladin® Air Z O2 – The Diving System - + E Oxy2 (Option) MemoMouse and logbook software DataTrak (Option) Pressure Transmitter (Option) B Dive Computer Aladin® Air Z O2 6 Screen Guard (Optional: several colours) Uwatec® Aladin® Air Z O2
List of chapters 4 5 II 1 2 3 4 Aladin® Air Z O2 – Introduction _______9 Aladin® Air Z O2 – Introduction __________10 Aladin® Air Z O2 – More Safety in Diving __10 Aladin® Air Z O2 – Your Personal Companion __________________________13 The Calculation Model ZH-L8 ADT 4.1 Description _______________________14 4.2 Advantages _______________________16 Safety in Diving _______________________16 Aladin® Air Z O2 – The System ________17 Description 1.1 Structure _________________________18 1.
List of chapters 5 6 4.12 Remaining Bottom Time RBT ___65 Functions at the Surface 5.1 End of a dive _____________________67 5.2 Desaturation time _________________68 5.3 No fly time _______________________68 5.4 Warning of bubbles ________________69 Diving in Mountain Lakes_______________70 IV Diving at Reduced Risk with Aladin® Air Z O2 _____________________73 1 Diving at reduced risk with Aladin® Air Z O2 1.1 Diving at reduced risk ______________74 1.2 Diving at reduced risk for the first dive 74 1.
I Aladin® Air Z O2 – Introduction _________________________________________10 2 Aladin® Air Z O2 – More Safety in Diving _________________________________________10 3 Aladin® Air Z O2 – Your Personal Companion _________________________________________13 4 The Calculation Model ZH-L8 ADT 4.1 Description ____________________________14 4.
1 Aladin® Air Z O2 – Introduction When you dive with an SCR with Oxy2 and Aladin® Air Z O2 you will know your exact decompression, CNS clock status, Oxygen fractions and ppO2 on line and in real time. With Aladin® Air Z O2 paired to a pressure transmitter or Oxy2 you dive more safely than ever before, though you can make more of your diving time thanks to the exact calculation of the gas-supply. In addition, Aladin® Air Z O2 offers an unmatched comfort in carrying and operation.
2 Aladin® Air Z O2 – More Safety in Diving I • CNS damages: Symptoms of poisoning occuring at short notice in the central nervous system (CNS). Such symptoms are: irritations of the respiratory organs, sickness, headache, pulmonary oedema, cramps, unconsciousness. The symptoms occur at a ppO2 of more than 1 bar and depend on the term of exposure and on the partial pressure of oxygen. • Damages of the lungs: Symptoms of pulmonary poisoning occuring in the long run. The symptoms occur at a ppO2 from 0.
2 Aladin® Air Z O2 – More Safety in Diving 1. Only dive with nitrox or SCR if you have been trained thoroughly by a recognised agency. 2. Only use the pressure transmitter with open breathing systems. Aladin® Air Z O2 must be set for a determined gas mixture. In partially-open and in closed circulationsystems, the gas mixture in the breathing loop can vary considerably from the mixture in the tank(s). 3. For dives with an SCR always use an Oxy2. 4.
Aladin® Air Z O2 considers your individual gas mixture, depth and time profile, as well as workload and water temperature. Relying on the latest results of medical and physiological research for its decompression modelling, the Aladin® Air Z O2 differs from other diving computers in a number of significant ways: • Diving with SCR and Oxy2 enables the calculation of oxygen toxicity and decompression to be on the basis of the actual composition of the inhaled gas.
3 Aladin® Air Z O2 – Your Personal Companion / 4 The Calculation Model ZH-L8 ADT You must strictly observe all optical and acoustic alarms and take appropriate action based upon those alarms to avoid serious injury or death from decompression sickness! • By using the Aladin® Air Z O2‘s logbook, a diver may directly call up information from the last 19 dives.
4 The Calculation Model ZH-L8 ADT I • Microbubbles can form if the diver makes too fast an ascent, ignores required decompression stops, or makes repeated ascents during a dive (yo-yo diving). These microbubbles can form in arterial blood as well as in the body‘s tissues. If these microbubbles partially impair circulation, the rate of gas diffusion and saturation tolerance for those tissues immediately surrounding this area of impaired circulation are changed.
4 The Calculation Model ZH-L8 ADT / 5 Safety in Diving • Flying within 24 hours after diving. • Excessive ascent rate. If a diver experiences any of these risk factors while diving, the Aladin® Air Z O2 will decrease remaining bottom time without requiring decompression, or will add required decompression time in order to help minimize the risk of decompression sickness.
Description 1.1 1.2 Structure _________________________________18 Reliability of transmission____________________19 2 Pressure transmitter and Oxy2 2.1 Pressure transmitter operating modes and functions _________________________________20 Oyx2 operating modes and functions _________21 Data transmission and reception _____________22 2.2 2.3 3 Dive Computer 3.1 3.2 4 Setting Up (Oxy2, press. transmitter, Air Z O2) 4.1 4.2 4.3 4.4 4.5 4.
1 Description 1.1 Structure The Aladin® Air Z O2 system consists of four units: 1 1 The Oxy2 is fitted “in line“ to the inhalation hose of the semi closed rebreather (SCR) and measures the actual oxygen fraction of the inspired gas mixture. This information is transmitted to a paired wireless Aladin® Air Z O2. This is the basis for the calculation of both oxygen toxicity and decompression, based on the real values of the inhalation gas.
II 1 Description depth 4 The dive computer has a data memory which stores the dive data. The data can be downloaded out into a MemoMouse from where they can be transmitted to a Windows® personal computer with the logbook program DataTrak. MemoMouse and DataTrak are available as an option. dive time DO NOT FLY LOGBOOK CNS O2 LIMIT S L O W English % NO STOP max.
1 Description 3.Together with the data additional information is transmitted. This additional information allows the Aladin® Air Z O2 to reconstruct faulty data and recognize useless data. By means of these redundant measures, faulty transmission is almost impossible. These transmitted measurements are subjected to an additional plausibility check. Only such data are used which are sensible in the current situation. 2 Pressure transmitter and Oxy2 2.
2 Pressure transmitter and Oxy2 II If there is no decrease in tank-pressure (no breathing), the transmission is stopped after 3 minutes in order to save energy. Pressure measuring continues. As soon as breathing is resumed the pressure transmitter returns to transmission-mode. The Aladin® Air Z O2 pressure transmitter will start working when the tank valve is first opened or when gas mixture is drawn through the regulator.
2 Pressure transmitter and Oxy2 2.3 Data transmission and reception The dive computer can only receive data from the pressure transmitter/Oxy2 if the computer and pressure transmitter/Oxy2 are paired. If the pairing has not been carried out, no gas mixture data will be displayed by the dive computer. In that case, Aladin® Air Z O2 works as a conventional dive computer.
II 3 Dive Computer 3.1 Operation Switching on display: – automatically, on submerging in water or when adaptation to atmospheric pressure is necessary. English – manually by manipulating contacts on housing. Switching off display: – automatically, after three minutes without operation. Aladin® Air Z O2 has 4 operating contacts B, E, +, – on the outside of the housing. For manual operation, touch base contact B and any one of the other three contacts above the display with moistened fingers.
3 Dive Computer Active backlight The display of the Aladin® Air Z O2 can be illuminated both on the surface and underwater. The backlight can be switched on by pressing the unit above the display. The light will turn off automatically after 7 seconds. The backlight can only be activated if the computer display is on. • The active backlight is no substitute for a dive torch. When diving at night or at increased depth we recommend the use of a dive torch. • Replace the battery if the battery warning appears.
II 3 Dive Computer max. depth dive time 1. The Aladin® Air Z O2 is in a state of rest; no information is displayed (—>sleep-mode or —>surface-sleep-mode). deco info 2 depth dive time depth dive time DO NOT FLY h 2. Bridging B and E activates the display —>readymode or —>surface-mode. CNS O2 LIMIT % O2 % MIX O2 % MIX DESATURATION h max. depth deco info Ready-mode max. depth Surface-mode 3 depth dive time max. depth deco info II Uwatec® Aladin® Air Z O2 deco info 3.
3 Dive Computer 4 depth dive time depth dive time DO NOT FLY h CNS O2 LIMIT % O2 % MIX O2 % MIX DESATURATION h max. depth deco info Ready-mode depth dive time max. depth deco info 4a Selecting the logbook function: B and + Cancel: B and – or automatically after three minutes Surface-mode depth LOGBOOK dive time LOGBOOK h max. depth deco info max. depth deco info 4b Activating the logbook: B and E. Aladin® Air Z O2 shows the most recent dive. depth dive time LOGBOOK max.
II 3 Dive Computer depth 4c Leaving the logbook: B and E or automatically after three minutes. dive time max. depth depth dive time English LOGBOOK deco info depth dive time DO NOT FLY h CNS O2 LIMIT % O2 % MIX O2 % MIX DESATURATION h max. depth deco info Ready-mode max. depth deco info Surface-mode 5a Selecting the O2% Mix function: B und –. Cancel: B and +: or automatically after three minutes. or after 3 minutes 5 depth dive time O2 % MIX max.
3 Dive Computer depth 5b Activating the O2% Mix function: B and E By B and + or B and – the percentage of oxygen is set. dive time O2 % MIX max. depth deco info 5c Leaving the O2% Mix function: B and E or automatically after three minutes (new setting is not accepted). depth dive time depth dive time DO NOT FLY h CNS O2 LIMIT % O2 % MIX O2 % MIX DESATURATION h max. depth deco info Ready-mode 28 max.
II 3 Dive Computer depth dive time max. depth deco info depth dive time DO NOT FLY DIVEPLAN CNS O2 LIMIT O2 % MIX % SPEED DESATURATION DECOSTOP NO STOP max. depth ft h m deco info tank data psi bar % O2 CAL O2 depth Sleep-mode: Activation: automatically When Aladin® Air Z O2 is not used, it is in the sleep-mode. The display does not show any information. The computer is briefly activated once every minute to measure atmospheric pressure. The display remains switched off.
3 Dive Computer Dive-mode: Activation: automatically at depth of about 0.5 m. In dive-mode, all diving functions are monitored, i.e. depth and dive time are displayed, maximum depth is stored, saturation of tissues is calculated depending on workload and temperature, no-stop time or decompression prognosis is determined, ascent rate is controlled and displayed and the correctness of the decompression procedure is supervised.
depth dive time DO NOT FLY CNS O2 LIMIT % O2 % MIX DESATURATION h max. depth deco info depth dive time max. depth deco info depth dive time DO NOT FLY LOGBOOK CNS O2 LIMIT O2 % MIX S L O W h max. depth deco info tank data bar II Uwatec® Aladin® Air Z O2 II Surface-mode: Activation: automatically after a dive or when changing altitude. After a dive has been completed, Aladin® Air Z O2 is in surface-mode.
3 Dive Computer depth O2%-mix-mode (only if no Oxy2 is used): Activation: manually by contacts The O2-mix-mode is used to enter the oxygen percentage of the used gas mixture. Values between 21% O2 and 99% O2 can be entered. If a pressure transmitter is used, this value is the basis for all calculations. Make sure that the selected value corresponds with the mixture to be used. dive time O2 % MIX max. depth deco info The selected O2-mix value has to be checked before each dive.
depth dive time DO NOT FLY CNS O2 LIMIT O2 % MIX S L O W DECOSTOP m max. depth deco info II SOS-mode: Activation: automatically If the diver remains above a depth of 0,5 metres for more than three minutes without observing the prescribed decompression, the computer switches into SOS-mode after the dive and displays instead of the depth. The computer is locked from use for the next 24 hours. Desaturation is still calculated including microbubbles in the tissues.
4 Setting Up (Oxy2, Pressure transmitter and Dive Computer) 4.1 Fitting the Oxy2 to a rebreather The Oxy2 is fitted “in line“ to the inhalation hose of the semi closed rebreather (SCR). To get an optimal transmission, the Oxy2 has to be aligned as shown: Position for left side inhalation hose and lefthanders. Position for left side inhalation hose and righthanders. Position for right side inhalation hose and lefthanders. Position for right side inhalation hose and righthanders.
II 4 Setting Up (Oxy2, Pressure transmitter and Dive Computer) 4.2 Fitting of pressure transmitter The transmitter is fitted at the high pressure (HP) outlet of the regulator’s first stage before the first dive. English Procedure: HP (Adaptor) Do not hold the pressure transmitter by its plastic part. II Uwatec® Aladin® Air Z O2 Fit the transmitter to the HP-outlet. If the threads do not match, get an adapter from your diving retailer. Tighten the transmitter by means of a size 19 wrench.
4 Setting Up (Oxy2, Pressure transmitter and Dive Computer) It is advisable to mount the transmitter on the same side that the computer is located. This is the optimal position for transmission. 36 Position of the pressure transmitter for left-handers. Position of the pressure transmitter for right-handers. Position of the pressure transmitter for left-handers, if there is no connection possible on the left hand side.
II 4.3 Remarks about pairing In order to be sure that Aladin® Air Z O2 receives and uses the data of its own pressure transmitter, or Oxy2, the units must be paired to each other. Pairing is necessary: – before the first use of Aladin® Air Z O2 with the pressure transmitter or Oxy2. – if you use a new pressure transmitter, Oxy2 or a new computer. – after changing from a pressure transmitter to an Oxy2 or the reverse.
4 Setting Up (Oxy2, Pressure transmitter and Dive Computer) 4.4 How to check that the computer is paired correctly: Oxy2 and dive computer 1. Switch on the Oxy2 and the dive computer. tank data 2. Compare the lower part of the dive computer with the Oxy2 display. Pairing has % bar been carried out correctly if the oxygen data is displayed within approximately 10 to 15 seconds. This delay is because of the start-up transmission procedure pairing with Oxy2 and a data plausibility check.
4 Setting Up (Oxy2, Pressure transmitter and Dive Computer) II Oxy2 and dive computer must be in physical contact during all the pairing procedure. 4. The dive computer shows after a short time a flashing in the lower display. tank data 5. In order to confirm the pairing, the B- and E-contacts have to be bridged within 5 sec. A bleep confirms the input and the -display still remains. The computer and Oxy2 must remain in physical contact until the confirmation has been done.
4 Setting Up (Oxy2, Pressure transmitter and Dive Computer) 4.6 Pairing of pressure transmitter and dive computer 1. Shut the valve, purge the regulator and wait for 15 seconds. 2. Switch on the dive computer (contacts B and E) and move it into the position shown below. Pressure transmitter and dive computer must be in physical contact during all the pairing procedure. 3. Open the tank valve. The transmitter briefly sends a pairing sequence to the computer. tank data 4.
Terminology/Symbols 1.1 1.2 1.3 1.4 Deco data during no-stop phase _____________42 Display during decompression phase __________43 Indications on the lower display ______________43 Nitrox information _________________________44 2 Attention Messages and Alarms 2.1 2.2 2.3 Attention Messages ________________________46 Alarms ___________________________________49 Alarm low battery__________________________51 3 Preparation for a Dive 3.1 3.2 3.
1 Terminology/Symbols The information on the display of the Aladin® Air Z O2 varies depending on the kind of dive and the dive phase. 1.1 Deco data during no-stop phase No-stop phase: Dive phase during which ascent is allowed without decompression stops. Dive time: Time of the dive below depth of 1.2 m. CNS O2 Limit: Oxygen toxicity. no-stop phase depth dive time A D CNS O2 LIMIT current depth A % B NO STOP max.
III 1 Terminology/Symbols 1.2 Display during decompression phase Lowest stage is displayed. Prescribed duration of the decompression stop at the displayed decompression stage. Total ascent time to surface: Total ascent time including decompression stops. Oxygen toxicity. CNS O2 LIMIT: A (7min) total ascent time to surface depth 3m B dive time lowest decompression depth 2min decompression time C CNS O2 LIMIT A % DECOSTOP m max.
1 Terminology/Symbols tank data bar D Tank pressure: RBT: Only available if a pressure transmitter is used. (Remaining Bottom Time) time, for which the gas mixture supply is sufficient at the current depth, until ascent must be started (only with pressure transmitter). Illustration on page 43 and explanation on page 65. 1.4 Nitrox information (O2 information) For dives with compressed air in normal recreational diving nitrogen is the decisive gas for the decompression calculations.
ppO2 max Maximum allowable partial pressure of oxygen: The higher the percentage of oxygen in the used mixture, the smaller the dive depth at which the tolerable partial pressure of oxygen (ppO2 max) is reached. Default setting is a limit of 1.5 bar, it can be changed with the DataTalk-program in the range of 1.2 to 1.95 bar. The Aladin® Air Z O2 does not display the entered ppO2 limit, but warns the diver acoustically and optically if he reaches the depth at which the ppO2 limit is reached.
2 Attention Messages and Alarms Aladin® Air Z O2 draws the diver’s attention to certain situations and warns the diver of unsafe diving practices. Attention messages and alarms are always optical and acoustic underwater, at the surface they are only optical except for the decompression alarm and low oxygen fraction (<19% O2, Oxy2 only). The acoustic attention messages (but not the alarms) can be switched off (see page 88). 2.
III 2 Attention Messages and Alarms Oxygen toxicity Oxygen toxicity of 75% is reached. Avoid a further increase of the value by beginning the ascent. 4 sec dive time tank data tank data S L O W % bar CNS O2 LIMIT bar O2 O2 % English depth NO STOP max. depth deco info Remaining bottom time less than 3 minutes Start ascent.
2 Attention Messages and Alarms depth dive time DO NOT FLY h Warning of bubbles Extension of the surface interval is recommended. See pages 69 and 78. CNS O2 LIMIT % O2 % MIX DESATURATION h max. depth deco info 4 sec tank data bar % CAL 4 sec tank data bar CAL O2 48 % One O2-sensor measures wrong The Oxy2 continues to work. You can continue your actual dive cautiously. Check frequently the oxygen fraction value! Calibrate the Oxy2 after you have finished your dive. See also Oxy2 manual.
III 2 Attention Messages and Alarms 2.2 Alarms Alarms are given to the diver optically by flashing symbols, letters or figures and symbols. In addition, an acoustic sequence in one frequency can be heard during the whole duration of the alarm. depth dive time S L O W English An alarm occurs in the following situations: Excessive ascent rate. Reduce ascent rate. See page 76. % SPEED NO STOP max.
2 Attention Messages and Alarms depth dive time Oxygen toxicity The oxygen toxicity reaches 100%. Start ascent at once! Oxygen toxicity reaching 100% can lead to dangerous neurological symptoms. See also page 79. CNS O2 LIMIT % O2 % MIX NO STOP max. depth deco info tank data tank data % bar bar O2 O2 Oxygen fraction below 19% O2 The inhaled gas does not contain enough oxygen! Flush the SCR system and check the tank pressure! If necessary change to the backup system. See also page 80.
2 Attention Messages and Alarms / 3 Preparation for the Dive III depth dive time depth NO STOP max. depth dive time NO STOP deco info max. depth deco info tank data tank data % tank data bar % Dive computer battery low: In dive-mode, is indicated by a flashing display and alternating with the display of maximum depth as soon as battery capacity is 0%. In ready-mode and surface-mode, is shown instead of maximum depth.
3 Preparation for the Dive 1. Switch on the Oxy2 and check it according to the Oxy2 manual. depth dive time DO NOT FLY DIVEPLAN h LOGBOOK CNS O2 LIMIT O2 % MIX 2. Switch on the Aladin® Air Z O2 manually by bridging the contacts B and E with moistened fingers. Check test display: are all displays lit? % S L O W SPEED DESATURATION DECOSTOP NO STOP ft h m deco info max. depth tank data psi bar % O2 CAL O2 tank data bar % 3. Check transmission from Oxy2 to dive computer.
3 Preparation for the Dive III 3.2 Preparation for a Dive with pressure transmitter The following description of the preparation of a dive is based on the assumption that the pressure transmitter is mounted correctly at the HP-outlet of the regulator (see pages 36, 37) and that it is paired with Aladin® Air Z O2 (see page 38). If the Aladin® Air Z O2 pressure transmitter is not correctly mounted or is not correctly paired, it will not perform properly and serious injury or death may result. 1.
3 Preparation for the Dive 5. Check transmission from transmitter to dive computer. Check tank pressure (after approx. 10 seconds). If not enough pressure is indicated, change tank. tank data bar depth dive time O2 % MIX max. depth deco info 6. The Aladin® Air Z O2 is now in ready-mode. It switches on automatically on being submerged in water and activates divemode, when a depth of more than 0.5 metre is reached. The depth indication may be delayed for a few seconds.
3 Preparation for the Dive / 4 Functions during the Dive depth dive time III 4. Bridging B and + will increase the percentage of oxygen (from 21% to 99%), bridging B and – decreases the percentage of oxygen. max. depth English O2 % MIX deco info 5. Confirm with B and E. Aladin® Air Z O2 switches back into ready-mode. Before every dive, make sure that the setting of the gas mixture corresponds to the actual mixture used. A wrong setting causes the Aladin® Air Z O2 to miscalculate.
4 Functions during the Dive 4.2 Current depth Current depth is given in 10 cm-increments. On switching on and at a diving depth of less than 0.5 metres the void display <---> appears. Depth measurement is based on freshdepth dive time depth dive time water. Therefore, Aladin® Air Z O2 shows a slightly greater depth than actually true when diving in salt water, % O % MIX depending on the salinity of the water. CNS O2 LIMIT 2 NO STOP max. depth deco info max. depth deco info 4.
III 4 Functions during the Dive depth dive time S L O W % SPEED Optimal ascent rate varies depending on depth between 7 and 20 m/min. It is displayed in percent of the reference variable. If the ascent rate is greater than 100% of the set value, the black arrow appears. If the ascent rate exceeds 140%, the arrow starts flashing. The Aladin® Air Z O2 provides an acoustic alarm if the ascent rate is 110% or greater of the set value.
4 Functions during the Dive Messages: Ascent rate % SPEED % SPEED % SPEED % SPEED Optical alarm Acoustic alarm S L O W S L O W S L O W S L O W Excessive ascent rates for longer periods are entered in the logbook.
4 Functions during the Dive III O2 % MIX English 4.5 Partial pressure of oxygen (ppO2) The tolerable partial pressure of oxygen can be set by means of a MemoMouse 4 sec and the DataTalk software to between 1.2 and 1.95 bar (see page 88). The set depth dive time value is not displayed. The actual ppO2 is displayed only if an Oxy2 is used. S L O W NO STOP max.
4 Functions during the Dive 4 sec depth Messages: An acoustic signal is sent if oxygen toxicity reaches 75%. The symbol flashes continuously. The ascent arrow and the O2-alarm-triangle is shown. Response: Go to a shallower depth if necessary. dive time CNS O2 LIMIT S L O W % NO STOP max. depth deco info tank data % bar tank data bar O2 O2 depth dive time Messages: When oxygen toxicity reaches 100%, an acoustic alarm is sent every 4 seconds.
4 Functions during the Dive III Message: If the oxygen fraction is lower than 19% an acoustic alarm is sent every 4 seconds, also the O2 alarm triangle is flashing. Response: Flush the SCR system and check the tank pressure! If necessary change to the backup system. Never let the O2 fraction go below 19%! Danger of hypoxia! tank data bar % O2 4.8 Decompression information No-stop time is displayed if no decompression stops are necessary.
4 Functions during the Dive Messages: There is an acoustic signal if no-stop time is less than 1 minute. In this last minute, the no-stop display shows the flashing value <0>. 4 sec depth dive time Response: In order to prevent a decompression dive, you must ascend a few metres after this message. CNS O2 LIMIT % O2 % MIX DECOSTOP NO STOP max. depth It is dangerous and unsafe diving practice to push a dive computer or any other decompression tool to its limits.
III 4 Functions during the Dive Total time of ascent depth dive time CNS O2 LIMIT % O2 % MIX DECOSTOP m max. depth deco info Descend to the prescribed decompression depth immediately! As soon as decompression stops are necessary, Aladin® Air Z O2 shows the total time of ascent. The time of ascent to the first decompression stage and all decompression stops are included. The time of ascent is calculated on the basis of the prescribed ascent rate and a normal workload.
4 Functions during the Dive 4.10 Increased workload warning Messages: 4 sec In case of increased workload, the Aladin® Air Z O2 displays a lung symbol in the lower display and an acoustic warning occurs. tank data bar 4 sec tank data bar % Response: In order to prevent additional saturation, reduce exertion and breathe more slowly. See page 78.
III 4 Functions during the Dive depth English 4.12 Remaining bottom time RBT (only with pressure transmitter) RBT is the time left at the current depth until the point of time when the ascent must be started. The RBT is shown in the lower display. The RBT is calculated on the basis of the current tank pressure, the temperature, and the dive data so far registered. The RBT is based on the assumption that the tank pressure should amount to at least 40 bar at the end of the dive.
4 Functions during the Dive The acoustic alarm on exceeding the RBT is suppressed at depths less than 7 metres if Aladin® Air Z O2 is in the no-stop phase. Messages: If the RBT drops below three minutes, an acoustic attention signal is activated, the ascent arrow is displayed and and the RBT (figures only) starts flashing. When the last minute has passed (RBT=0) an acoustic attention signal is activated every 4 seconds. The RBT and the ascent arrow start flashing. Response: 66 Start ascent immediately.
5 Functions at the Surface III depth O2 % MIX depth dive time dive time O2 % MIX max. depth max. depth deco info deco info After reaching the surface, Aladin® Air Z O2 switches into wait-mode automatically for five minutes. This is the time span necessary to recognize the end of the dive. The delay allows for surfacing for a short period for orientation or for a change of tank. During the five minutes waiting time the percentage of oxygen display alternates with maximum depth display.
5 Functions at the Surface 5.2 Desaturation time depth dive time DO NOT FLY h CNS O2 LIMIT % O2 % MIX DESATURATION h max. depth When appears, the Aladin® Air Z O2 is in surface-mode. Desaturation time in hours and minutes, the set mixture (percentage of oxygen) and, if available, oxygen toxicity is displayed next to it. Desaturation time is continually indicated until the next dive or until it reaches zero.
5 Functions at the Surface III For the calculations of the desaturation and No Fly Time it is assumed that the diver inhales air. 5.4 Warning of bubbles depth dive time DO NOT FLY h CNS O2 LIMIT % O2 % MIX DESATURATION h max. depth deco info Through repetitive dives microbubbles accumulate in the lungs if the surface interval is not long enough. Ignoring decompression stops or an excessive ascent rate can also lead to bubbles in tissues.
6 Diving in Mountain Lakes depth dive time DESATURATION h max. depth deco info Aladin® Air Z O2 measures the atmospheric pressure even while in sleep-mode. If the computer detects a higher altitude, it switches into surface-mode automatically. Desaturation time indicated at this moment refers to adaptation time at this altitude. If diving starts within this adaptation time, Aladin® Air Z O2 treats it as a repetitive dive, since the body still has a higher saturation.
6 Diving in Mountain Lakes III depth dive time max. depth deco info Aladin® Air Z O2 can be used as a decompression computer in case of an emergency up to an altitude of 4000 m. If atmospheric pressure is below 620 mbar (altitude higher than 4000 m above sea level), no decompression data is displayed. Oxygen toxicity is still calculated. Indication of the RBT is also impossible since decompression data are necessary for its calculation (of course the PPO2 and O2% or tank pressure are still displayed).
III Uwatec® Aladin® Air Z O2
IV Diving at Reduced Risk with Aladin® Air Z O2 Diving at reduced risk with Aladin® Air Z O2 1.1 1.2 1.3 1.
1 Diving at Reduced Risk with Aladin® Air Z O2 1.1 Diving at reduced risk Aladin® Air Z O2 recognizes and reacts “intelligently“ to certain risk situations, although of course it is much better that each individual diver avoid these higher risk situations altogether. If a decompression accident does occur, the optional MemoMouse and DataTrak software allows the analysis of the dive profile and certain risk parameters to provide for more complete information for treatment purposes.
– – – – – – – – – – – IV If the ascent arrow appears, start ascending. If the flashing ascent arrow appears, start to ascend at once. Observe (ascend at 75%). Comply with the ascent rate and decompression stops if any. If the Aladin® Air Z O2 fails at any time during the dive, the dive must be terminated, and appropriate surfacing procedures should be initiated immediately.
1 Diving at Reduced Risk with Aladin® Air Z O2 – – – – – Descend less deep for the repetitive dive than for the previous dive. Plan for a minimum surface interval of three to four hours. Do not attempt to repetitive dive if the is visible on the display. Take a day off from diving every week. Repetitive dives after exchanging the dive computer: Wait at least 24 hour before you start with the repetitive dive. 1.
1 Diving at Reduced Risk with Aladin® Air Z O2 IV The diver disregards the prescribed decompression depth. Reaction of computer: The model calculates the formation of bubbles due to ignoring decompression. A longer (and eventually at greater depth) decompression is displayed in order to assure sufficient time for desaturation. See page 50 and 62. English Situation 2: Recommended response of the diver During the dive: Descend to the prescribed decompression depth at once.
1 Diving at Reduced Risk with Aladin® Air Z O2 Situation 3: The diver is physically exerting himself or herself, (e. g. swimming against the current). Reaction of computer: A shorter RBT or an extension of decompression time. See page 47 and 64. Recommended response of the diver During the dive: • Avoid further physical exertion if possible. Relax. • Frequently check the RBT (pressure transmitter only) or oxygen fraction (Oxy2 only) and decompression information on your Aladin® Air Z O2.
1 Diving at Reduced Risk with Aladin® Air Z O2 IV Situation 5: reaches 100%. Reaction of computer: An acoustic and visual alarm is given. The CNS O2%-value, the ascent arrow and the O2-warning triangle are flashing. See also page 50, 59 and 60. English Recommended response of the diver Ascend immediately until ppO2 is less then 0.5 bar and the buzzer stops. Situation 6: ppO2 reaches the set value.
1 Diving at Reduced Risk with Aladin® Air Z O2 Situation 7: O2 fraction too low (less than 19%) Reaction of computer: Every 4 seconds an acoustic alarm is given, the O2-warning triangle is flashing. See page 50 and 61. Recommended response of the diver: During the dive: Flush the SCR and check the tank pressure! If necessary switch to the backup system. After the dive: 80 Check the dosage of the SCR.
V Survey _________________________________________82 2 Selection and Activation _________________________________________83 3 Selection of Dive _________________________________________84 4 Leaving the Logbook-Mode _________________________________________85 5 Output on PC _________________________________________86 V Uwatec® Aladin® Air Z O2 81 English V Logbook 1
1 Survey The Aladin® Air Z O2 records the last 37 dives and the dive profiles of the last 175 minutes of diving (see „Output on PC“ page 86). The last 19 dives can be displayed directly on the dive computer. A dive is only entered in the logbook if the dive time is longer than 2 minutes. Displayed information of the dive: depth alarms during the dive dive time dive time LOGBOOK altitude sections if any O2 % MIX maximum depth dive number S L O W DECOSTOP max.
depth dive time depth dive time DO NOT FLY DO NOT FLY h CNS O2 LIMIT % O2 % MIX O2 % MIX DESATURATION h max. depth deco info max. depth Ready-mode depth 1. The logbook is selected by bridging contacts B and + in ready- or surface-mode. Indication appears. If Aladin® Air Z O2 has been in surface-mode before, the surface interval appears as well. You go back into ready- or surface-mode by B and –.
3 Selection of Dive depth dive time DO NOT FLY 1. Bridge contacts B and + to get the information of the dive preceding the most recent one. Display appears. LOGBOOK max. depth deco info depth dive time 2. On additional bridging of B and + the logbook jumps to the next older dive (DIVE 3). 3. On constant bridging of the contacts all dives are displayed successively. 4. Bridging contacts B and – allows switching back from older dives to more recent ones. DO NOT FLY LOGBOOK max.
V 4 Leaving the Logbook-Mode Touch contacts B and E. Aladin® Air Z O2 switches back into ready- or surface-mode. This also happens 3 minutes after last activating logbook-mode. dive time max. depth English depth deco info tank data bar or after 3 minutes depth dive time depth dive time DO NOT FLY DO NOT FLY h CNS O2 LIMIT % O2 % MIX O2 % MIX DESATURATION h max. depth deco info V Uwatec® Aladin® Air Z O2 max.
5 Output on PC The Aladin® Air Z O2 stores data of the last 37 dives including a total of approximately 175 minutes of dive profiles from the last dives. This information can be downloaded into a Memo Mouse (optional), which stores up to approximately 58 dive hours. With the DataTark Windows® software (optional) the information can then be transferred from the MemoMouse to a PC.
MemoMouse, DataTrak and DataTalk VI Uwatec® Aladin® Air Z O2 VI 1.1 Personal programming of the dive computer (DataTalk) ___________________ 88 1.2 Analysis and storage of real dives (DataTrak) ___________________________ 89 1.
1 MemoMouse, DataTrak and DataTalk The Aladin® Air Z O2 is able to communicate with a personal computer. The connection is established by contact sensors and the MemoMouse. The MemoMouse and the PC software DataTrak and DataTalk is available as an option. For the Aladin® Air Z O2 it is only allowed to use DataTalk version 2.0 or higher. Communication with a personal computer (Windows®) has a number of advantages: 1.
VI 1.2 Analysis and storage of real dives (DataTrak) The last approx. 175 minutes of dive time are stored by the dive computer in increments of 20 seconds and can be transferred to the PC. The DataTrak software allows the representation and analysis of the profiles. By this means all relevant data are examined and displayed for every point in time. A lot of additional information such as water temperature, gas mixture consumption etc. can also be viewed. The DataTrak releases 2.
VI Uwatec® Aladin® Air Z O2
VII Trouble Shooting VII Trouble Shooting ________________________________________ 92 VII Uwatec® Aladin® Air Z O2 91 English 1
VII Trouble Shooting symptom No reception of the tank pressure-/oxygen data possible reason(s) / and computer are not tuned to each other (paired) / Pair transmitter and computer (see page 38-40). / or receiver in the computer are defective. If pairing is not possible with another / the receiver in the computer is defective. Have dive computer repaired. Oxy2 switch in position „CAL“. Bad reception of tank pressure or Oxy2 data. Turn switch to „RUN“.
VII VII Trouble Shooting Displayed tank pressure does not correspond to pressure measured by a manometer (depth gauge). The logbook does not show any gas mixture consumption (dp) for a certain dive. possible reason(s) possible reason(s) By compensating for temperature, the pressure displayed is valid at 20 °C. If the gas or water temperature differ from this value, a difference to the value given by a manometer is possible.
VII Trouble Shooting symptom possible reason(s) response Desaturation time and/ or no fly time are very long. Too many repetitive dives, yo-yodiving, square profile repetitive dives or disregarding decompression stops. Dissolved nitrogen and/or microbubbles must be off gassed first. Plan sufficiently long surface interval and dives at lower risk. appears. Too many repetitive dives, too fast ascents, yo-yo-diving, square profile repetitive dives or disregarding decompression stops.
Maintenance ________________________________________ 96 2 Technical Information ________________________________________ 97 3 Conversion of tank pressure _________________________________________98 4 Warranty 5 Safety considerations _______________________________________ 100 6 Serial No. / Dealer address _______________________________________ 102 VIII Uwatec® Aladin® Air Z O2 3.1 3.2 3.
1 Maintenance Your Aladin® Air Z O2 is virtually maintenance free. All you need to do is to rinse it carefully with fresh water after each use and to have the batteries changed when needed. To avoid possible problems with your Aladin® Air Z O2, the following recommendations will help assure that it will give you years of trouble free service: – Avoid dropping or jarring your Aladin® Air Z O2 – Do not allow your Aladin® Air Z O2 to be exposed to direct, intense sunlight.
VIII 2 Technical Information with decompression information: without decompression information: Operating depth: sea level up to approx. 4000 metres unlimited No limit for recreational dives. English Operating altitude: • Always check the diving limits given by the chosen percentage of oxygen (decompression sickness, oxygen toxicity). • Do not dive deeper than 40 metres. Maximum operating pressure: 13 bar Clock: quartz timer, display up to 199 minutes Operating temperature: 10 ° to +50 °C.
3 Conversion of tank pressure Tank pressure indicated in the lower display may diverge from the information given by a manometer/ depth gauge. Aladin® Air Z O2 always displays pressure converted to a temperature of 20 °C, whereas the mechanical depth gauge displays the actual pressure influenced by temperature. The figure on the right allows you to compare the information given by a conventional depth gauge and by Aladin® Air Z O2 at six different temperatures.
VIII 4 Warranty 4.1 Recognition of warranty The warranty only covers dive computers which have been provably bought from an authorized retailer or from the manufacturer. 4.2 Scope of the warranty The manufacturer will repair all defects which are provably traceable to defects of material or faults in production. The warranty covers the repair of the dive computer free of charge, the replacement of faulty parts or the entire dive computer, respectively.
5 Safety considerations The Aladin® Air Z O2 with an Oxy2 or a pressure transmitter gives to the diver a high level of reassurance and safety. However these units can never be a substitute for a thorough diving education. Pay careful attention to warnings given by the Aladin® Air Z O2. Do not make risky dives. Pay special attention to the parts of this manual which are marked with and ! Follow all standard safe diving practices: – Never dive without a buddy.
English VIII VIII Uwatec® Aladin® Air Z O2 101
6 Serial No. / Dealer address Dealer address: (Dealer to affix stamp) 102 Printed in Switzerland 1/00 Serial No.
Attention messages _______________________46 Backlight ________________________________24 Battery lifetime ___________________________97 Battery alarms ____________________________51 Bubbles, warning of ________________48, 69, 78 CNS see O2-Toxicity CNS O2 Limit __________________45, 47, 50, 79 DataTalk _________________________________88 DataTrak _____________________________86, 89 Deco data during no-stop phase _________42, 61 Deco data during decompression phase ___43, 62 Decompression stop, ignored ____
Index Pressure transmitter, fitting _________________35 Pressure transmitter, preparation of a dive with 53 RBT ___________________ 13, 43, 47, 49, 65, 94 Ready-mode _____________________________29 Remaining bottom time, see RBT Risk, diving at reduced risk ______________74-76 Safety diving ______________4, 5, 10, 74-46, 100 Sleep-mode ______________________________29 SOS-mode _______________________________33 Surface interval ___________________________78 Surface-mode ____________________________31 Surface
