DataTrak

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Memo Mouse / DataTrak

Page 2 DataTrak
Table of Contents Survey. 5 The system. 5 PC system requirements. 6 Scope of delivery. 6 Dive computer. 6 Memo Mouse. 7 DataTrak for Windows. 9 DataTalk for Windows. 11 Older versions of DataTrak and Memo Mouse 11 Whats new?. 11 Importing logbooks from older versions of DataTrak. 12 Older Memo Mouse versions. 12 Memo Mouse. Survey. Switching on Memo Mouse. Displays. Change of battery. Saving dives in Memo Mouse. Transferring dives to the personal computer Changing standard settings of the dive computer with DataTrak. Warranty. DataTrak. Introduction. Starting DataTrak. Remarks on the operation. Screen design. Dive without profile data. Dive with profile data. Menu Window. Menu Options (Standard settings) Leaving the programme. 37
Set-up of DataTrak and DataTalk. Language. Programme directory.
Managing Dives and Logbooks. Menu Logbook. Create a new logbook. Open an existing logbook. Save. Save as . Importing a logbook. Exporting dives. Renumbering. Print-out options. Menu Dives. Transferring data from dive computer or from Memo Mouse. Insert dives (manual input). Delete dives. Edit dives.

Page 3 DataTrak

Table of Contents Statistics of your dives. 37 Selecting dives. 38 Adjust local time. 40 Profiles / Dive Analysis. Screen design. Operation. Analysing dives. Increments of registration. Example of a dive. Examples of special dives. Further possibilities of analysis. For dive computers with air-pressure information. 65 For Nitrox dive computers. 65 Terms of Licence. 67
Tips and Tricks. 57 Problems, Reasons, Solutions. 59 DataTalk. Starting the programme. Options. Operation. Read. Write. Wake up. Adjustable standard settings. For all compatible dive computers For all dive computers with acoustic messages. 64

Page 4 DataTrak

Survey
The system With the Memo Mouse and the DataTrak/DataTalk software for Windows, you get a valuable addition to your Aladin dive computer or compatible instrument.

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1 Aladin or compatible dive computer 2 Memo Mouse with transfer line and serial port 3 Serial cable to PC 4 PC with DataTrak/DataTalk software for Windows

Page 5 DataTrak

Survey 1.1.1 PC system requirements 8 PC with 386 CPU or higher 8 Windows 3.1x, Windows 95 or Windows NT (3.51 or higher) MB RAM minimum 8 Hard disk with minimum 2 MB free memory 8 Mouse or compatible pointing device 1.1.2 Scope of delivery 8 Memo Mouse 8 3.5-inch floppy disk with DataTrak/DataTalk for Windows 8 Serial line 8 Operating manual 1.2 Dive computer UWATEC dive computers of the Aladin family and compatible instruments save the logbook data of your dives in an internal logbook. More dives are saved than are displayed in the logbook of the instrument. In addition, the current dives are stored in detail with a dive profile in 20-seconds increments. When the profile memory is full, the oldest profile data are overwritten. Please consult your dive computer operating manual for detail edinformation he logbook and profile memories of your instrument.

Profile memory profile data are stored here
Logbook data only Logbook memory these no indication possible dives can be called in the display up from the logbook of the instrument. No profile data!

Page 6 DataTrak

UWATEC dive computers of the Aladin family and compatible instruments save the logbook data of the last 37 dives. The most current dives up to a maximum of 200 dive minutes (e.g. 4 dives each of 50 minutes duration) are saved in detail with a dive profile in 20-seconds increments. Air-integrated and Nitrox dive computers also save information about gas mixture, CNS activity and air consumption. 1.3 Memo Mouse Memo Mouse is the link (interface) between dive computer and personal computer, and its integrated software allows the data transfer with DataTrak and DataTalk. But Memo Mouse means a lot more Memo Mouse is a temporal memory for your dive data which stores detailed data and dive profiles of up to 66 one hour dives. This allows you to store your dive data even if you have no access to your personal computer over a longer period of time. This is especially important for dive holidays.
The stored data are transferred from Memo Mouse to your personal computer. Memo Mouse recognizes all compatible dive computers. It also discriminates between individual dive computers and transfers this information to your logbook. You can store data of more than one dive computer in the same Memo Mouse. In order to transfer the contents of the memory from the Memo Mouse to your personal computer a dive computer must be connected. Memo Mouse only transfers the data of the connected dive computer.

Page 7 DataTrak

Survey If data of different dive computers are stored in Memo Mouse, the data transfer procedure has to be carried out separately for each dive computer. This allows you to store the data of different dive computers in different logbooks.

Page 8 DataTrak

Survey 1.4 DataTrak for Windows

Page 9 DataTrak

Survey DataTrak for Windows replaces your logbook and offers additional interesting possibilities. Page 33 With DataTrak you import dives from the dive computer and from a Memo Mouse Page 37 Manually enter in the logbook dives which are not stored in your dive computer. Page 30 You can keep more than one logbook with DataTrak. Each logbook is saved under a name of its own. Page 40 The dives are always listed correctly in respect of date and time. Page 38 You can select your dives in respect of certain criteria. Page 37 DataTrak keeps statistics of your dives. Page 41 Your dives are represented graphically in the form of dive profiles if they are imported from the dive computer regularly. In addition, the display indications, physiological data and tissue data of the whole dive are displayed. Page 48 These instruments of analysis are especially suited for training purposes and for the improvement of the personal diving technique, since the exact reconstruction of dives allows conclusions about the individual actions in specific situations. DataTrak also offers an important and helpful means for the investigation of diving incidents. Page 31 Have of surveys dive data and dive profiles printed out in a very simple manner.

Memo Mouse 2.1.2 Displays Green LED Operation indication If the dive computer is connected correctly to the Memo Mouse, the green LED is flashing. Acknowledgement After the data transfer from dive computer to Memo Mouse, the green LED lights up for 4 seconds.
Red LED Warning battery low If the dive computer is connected to the Memo Mouse and the red LED is no flashing, battery voltage has dropped to a critical level. transfer After the first appearance of the warning battery low, Memo Mouse remains functional for at least 50 more transfers. Change the battery as soon as battery possible. Faulty transfer Two different kinds of transfer faults may occur: 1. The dive computer can no longer be operated after the fault. The red LED of the Memo Mouse is flashing for 5 minutes maximum. Remove the reason of the fault as quickly as possible (reinsert the plug) If the plug is fitted correctly, the red LED stops flashing after a few seconds, and the green LED lights up for 4 seconds. Repeat the transfer of data. 2. Your dive computer can still be operated after the fault. The red LED of the Memo Mouse is flashing for about 6 seconds. Remove the reason of the fault (reinsert the plug) Repeat the data transfer.

Page 14 DataTrak

Memo Mouse 2.1.3 Change of battery To change the battery loosen the 4 screws in the bottom of the casing. transfer ok The battery (9-V alkaline cell) is replaced without loss of data if you observe the following rules: 1. During the change of battery, Memo Mouse must not be connected to a dive computer. Also make sure that the plugs are not in contact with any other object. 2. After removing the used battery, the new one must be fitted within 15 seconds. It is advisable in any case to transfer all stored data to a personal computer before changing the battery.
Saving dives in Memo Mouse After diving, you transfer the new dives from your dive computer to the storage unit of Memo Mouse. Proceed as follows: 1. Switch on dive computer transfer 2. Connect dive computer ok Insert the terminals of the transfer line of the no transfer Memo Mouse to the seats provided in the battery operating contacts of the dive computer: B Red terminal: contact B Black terminal: contact Check that there is positive contact with the terminals before starting the data transfer!

Page 15 DataTrak

Memo Mouse 3. Function check. Green LED must be flashing. 4. Start data transfer. Switch your dive computer to its logbook mode. Then enter the dive computers logbook. When activating the logbook function, your dive computer first sends his identification and then the dive data to the Memo Mouse. The terminals of the transfer line have contacts on their upper side which you use like the contacts of the dive computer. 5. Check the data transfer. The green LED must be permanently on for at least 4 seconds. If the red LED is flashing, proceed as described on page 14 (faulty transfer).
Transferring dives to the personal computer

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Memo Mouse If you wish to transfer the stored dive data from the Memo Mouse or from the dive computer to your PC, proceed as follows: 1. Start DataTrak on your personal computer: p. 21.
s Make sure that the system time ofConnect the transfer cableis to the connection of the Memo your personal computer correct! 2. Connect Memo Mouse with PC.
Mouse and to a free serial PC port (COM port). 3. Connect dive computer with Memo Mouse: p. 15, point 2. Red terminal: contact B Black terminal: contact 4. Function check. Green LED must be flashing. 5. Select the function TRANSFER in DataTrak (page 34). 6. Data transfer. Proceed as described under point 45 on page 16. 7. Check data. started and s dive computer has to be connected. The transfer isinformation controlled by the diveofcomputer. In addition, in every transfer process, the first is an identification the dive computer. If data of several dive computers are stored in Memo Mouse, only the data of the connected dive computer are transferred to DataTrak for Windows. Even if you only want to transfer the data from Memo Mouse to the personal computer, the

Page 17 DataTrak

Memo Mouse 2.4 Changing standard settings of the dive computer with DataTalk Communication between your dive computer and the service programme DataTalk for Windows is also realised via Memo Mouse. In chapter DataTalk (p. 61 ff.), you will find a detailed description of how to call up and alter the standard settings of your dive computer. Basically, proceed as follows: 1. Start DataTalk for Windows on the personal computer: p. 61. 2. Set up the connections between dive computer, Memo Mouse and personal computer as described on page 17 (points 24). 3. Read the current settings. The current settings of your dive computer are read and displayed by DataTalk: p. 61. 4. Alter settings: p. 64. 5. Transmit the new settings back to the dive computer: p. 62. The altered settings are transferred to your dive computer. Warranty We warrant the Memo Mouse subject to the following conditions: Damages and defects which probably originate from faults in production are mended free of charge within the first 12 months after the delivery to the end user. The warranty period is not extended in consequence of accepted warranty claims. In order to put forward a warranty claim, send the unit together with your receipt to an authorised retailer or an authorised servicing point. Warranty is excluded if the damage has been caused by exterior influences or if operations have been carried out on the unit by persons not authorised by the manufacturer or national importers. The manufacturer does not have to accept extensions of the warranty granted by national importers.

Page 21 DataTrak

DataTrak Operation from keyboard All menu items can be called up by means of shortcuts. Press key ALT and the underscored letter of the menu or the menu item. Function keys A number of important and frequently used functions can be called up by means of function keys. F2 Save logbook F3 Open logbook F5 Receive data from dive computer (transfer) F7 Insert dive in list F8 Delete dive from list
Alt+T Alt+I Alt+D Alt+E Alt+A Alt+S Alt+L

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DataTrak 4.2 Screen design
4.2.1 Dive without profile data
Title panel Menu panel Icons panel

Dive list

Data window with dive data Dive displayed
The printed screen displays in this manual were made by a PC under Windows 95. They might differ slighty if you work under Windows 3.1x.

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DataTrak 4.2.2 Dive with profile data DataTrak represents your dives as dive profiles if the dive data have been transferred from the dive computer regularly. If you value the dive profiles and the multiple possibilities of analysis, carry out the data transfer frequently enough to assure that the data are available for the graphical representation (see operating manual of your Aladin dive computer).
Dive list Window Tissue data Window Physiological data
Data window with dive data Window Dive computer Displayed dive

Page 24 DataTrak

DataTrak Dives of which dive profiles exist can be recognised in the list by the mark following the dive number. 4.2.3 Menu Window
The menu items of the menu Window and the respective icons in the icons panel serve to activate, minimise and restore the different displays. The windows Profile, Dive computer, Physiological data and Tissue data can only be activated if the profile data for the displayed dive have been stored. Menu items and icons not to be activated are represented in grey.
4.2.4 Menu Options (standard settings) Select the language and the measurement units to be displayed in DataTrak in the menu Options under Country settings. Metric

5.2.1 Transferring data from dive computer or from Memo Mouse In order to receive dive data from a dive computer or from Memo Mouse proceed as follows: Before transferring data, make sure that the time and date of your personal computer are correct! This is important since time and date of the dives are calculated by DataTrak using the system time of your PC. Wrong system time and date have the consequence that time and date of your dive are entered wrongly. Connect the line to a free serial port of your PC and establish the connection between Memo Mouse and dive computer (see p. 15).

Page 33 DataTrak

Managing Dives and Logbooks In the DataTrak software, open the logbook to which you want to transfer the dive data. Select function Transfer. The programme advises you that it is ready to receive data, and the timer starts counting backwards from 60 seconds. The data transfer has to be started within this period of time. Check or alter the transfer options (see Tips and tricks, p. 57). Only new dive Only dives are transferred which have been carried out after the last logbook entry (date and time). All dives All the dives of the connected dive computer and the dives of this dive computer stored in the Memo Mouse are transferred. Activate the logbook mode of the dive computer. This effects that the data of the connected dive computer and the dives of this computer stored in the Memo Mouse are transferred to your DataTrak logbook in the correct order. If your logbook is still asked initial number (number of the first + after the data transferempty you will becontinuefor theyour personal current dive number.dive) so that you can with Each dive is allocated a continuous number in the logbook. You will find these numbers in the list of dives on the left hand side of the screen. The dives are ordered chronologically according to date and time.

Page 34 DataTrak

Managing Dives and Logbooks DataTrak creates a graphical representation of dives which are marked beside the number and shows further data of the dive (p. 41ff., Profiles/Dive analysis). These data are only available for a limited number of dives in the dive computer (see operating manual of your dive computer). If the profile memory of your dive computer is full, the profile information of older dives is deleted automatically. Therefore, you should transfer your dives regularly from the dive computer to your DataTrak logbook or to the Memo Mouse. of dive, function Edit s computer (dive site, weather, typeDataTrak activity, etc.). Usewith complete for these entries (p. 37). The statistical functions of only make sense dive data. When using dive computers with integrated information, the size of the is especially s important, since the air consumption is only air calculated if this informationtankavailable. be is If your dive computer is in the SOS mode, you can still the data to your s computer. Proceed in the same manner as described above.transferthe activation of thepersonal Only logbook is not applicable (the dive computer is blocked). The data are automatically transferred within 1 minute.

After importing data, complete the entries with the information not to be imported by the dive
5.2.2 Insert dives (manual input) Select function Insert if you want to manually add a dive to a logbook, without using the DataTrak transfer system.

Page 35 DataTrak

Managing Dives and Logbooks DataTrak opens an empty data sheet where you enter your dive data. The cursor is placed in the field Date where the current date and time of the system are indicated. You can immediately start with your entry. All the entering positions may be edited. Enter the dive date completely and confirm your entry by OK. DataTrak inserts the new dive, according to date and time, in the appropriate position in your logbook. If necessary, more recent dives are renumbered automatically. 5.2.3 Delete dives If you want to delete one or several dives from your logbook, proceed as follows: Mark the dive or dives you want to delete from your logbook. Select function Delete or press key [Delete]. DataTrak asks you if you really want to delete the dive. NO closes the dialogue box without deleting the dive. If you choose YES, the dive is deleted. reimporting the data from the if stored the s by the dive computer or the Memodive computerdivethey are stilllogbookinsaveslogbook memory of Mouse (the computer more dives than Deleting dives means definitive deleting of all data (incl. dive profile). Restoring is only possible
those which can be called up in its display). In order to reimport data older than the last (most recent) dive, activate the option ALL DIVES in the dialogue box Import dives. If you now import data from the dive computer, all the dives are inserted which are no longer (or not yet) stored in the logbook.

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Managing Dives and Logbooks 5.2.4 Edit dives This function allows you to alter, add to and remove information. Select the dive you wish to edit from the list of dives. Select Edit or doubleclick on the dive number in the list. Enter the alterations in the respective fields. To save the alterations press key OK; if the alterations are not to be saved, leave the entry box with Cancel.

s altered.

Entries imported by the dive computer automatically are represented in grey and cannot be
s since you ought to make additional entries to all the imported dives.
If you have imported your data from the dive computer you will use the function Edit frequently,
Especially with dive computers with integrated air information the size of the tank must always be entered to allow the calculation of air consumption.

5.2.5 Statistics of your dives DataTrak gives you the opportunity to keep statistics about various criteria of your dives. Select function Statistics. The screen displays the statistics of the dives of the current logbook. The evaluation shows in absolute figures and in percent: number of dives (=100%) number of repetitive dives number of dives in depth ranges (10-m increments)

Page 37 DataTrak

Managing Dives and Logbooks number of dives for each type of dive number of dives for each type of activity total dive time of all dives average dive time (average dive time of a dive). If you have selected a certain number of dives manually or with the function Select, the statistics only refers to these dives! The last line of the statistics window gives you the opportunity to choose between the statistics of the whole logbook or of selected dives only.
Type of dive and have + computer (menu activityEdit, p.to be entered manually when data are imported from the dive Dive, 37). 5.2.6 Selecting dives When entering dive data in the logbook you can select various predetermined criteria to classify your dives. Here, you use these criteria to mark and select certain dives of the open logbook.
Choose the function Select. Choose the criteria on which you want to select the dives.

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Managing Dives and Logbooks Date If you want to select dives which were made during a certain time span, enter the dates of beginning and end of the desired period. If you make no alteration here, the whole time span of the dates of all dives of this logbook is considered. Depth range If you want to select dives of a certain depth zone, enter the desired depth zone (e.g. 020 m, in order to display dives down to 20 m only). Dive type When entering dives, you can classify dives into types according to certain criteria. Click on the hand icon on the right of the entering line and select a type of dive. The present entry selects no-stop dives in the sea. Activities On entering dives you can allocate them certain activities. For example, you only have photo dives displayed by selecting this criterion (procedure as with dive type). If you have entered all selection criteria press OK.
the conforming + In the dive list,ofalldivesdivesan influence to the desired criteria are marked. Delete and The selection has on the functions Print, Export, Statistics, Adjust local time.

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Managing Dives and Logbooks 5.2.7 Adjust local time Date and time of a dive are calculated and entered basing on the system time of your personal computer when importing the dive to the PC. If you want to import dives of places with another time zone than the one of the system time of your PC you have to make up for the time difference in order to get the correct time in your dive data. Example If you have imported the dives of a place with a time shift of +4 hours, proceed as follows after importing the dives from your dive computer: Select or mark the dives the time of which is to be altered. Select the function Adjust local time. Enter the difference of time (04:00) and the sign for the direction of the shift (+). Press OK.

The conversion of dive time and date for the selected dives is carried out automatically. Before importing data, make sure that the system time of your PC is correct to assure the correct calculation of dive time and date.

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Profiles / Dive Analysis
DataTrak represents your dives graphically as dive profiles if the dive data have been transferred from the dive computer regularly. If you value the dive profiles and the multiple possibilities of analysis, carry out the data transfer frequently enough to assure that the data are available for the graphical representation (see operating manual of your Aladin dive computer). You will recognise dives with dive profiles by the marks behind the dive number in the list of dives. input data a period + In case you do not have the possibility to directlyyour Memo into DataTrak forto longerthe dive of time (e.g. diving holiday), you should have Mouse with you store data with all the relevant information for the graphical representation of up to 66 hours of diving. The graphics window clicking icon Profile. You can alternate + graphics window and is called up bywith keys on theand [Tab] (tabulator) quickly. between data window [Ctrl] informations vary depending on the dive computer used. + The graphical representation and Air X are represented. In this manual, data of an Aladin

Page 41 DataTrak

Profiles / Dive Analysis 6.1 Screen design A Window Dive computer B Window Physiological data C Window Tissue data D Title panel and information line with general dive data E Dive profile F Alarms G Current position

D A E G B

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Profiles / Dive Analysis A Dive computer This windows shows the most important display information of your dive computer at a certain time during your dive. B Physiological data G the estimated effect of microbubbles in the arterial blood circulation and in the tissue. ; the estimated cooling of the skin based on the water temperature and the dive time. M the activity of the diver by measuring the breathing pattern (only with dive computers with integrated air information). : the estimated air consumption at the moment in l/min (at 1 bar and 37C). This information is only available with dive computers with integrated air or gas information and only if the size of the tank has been manually added to the dive log!
Tissue data Each of the eight tissues considered by the calculation model is represented by a bar. The height of the bar represents the nitrogen saturation of the different tissues in percent of the tolerable value determined by the calculation model. The highest bar indicates the leading tissue at the current moment. Red bars show that the tissue is saturating Green bars show that the tissue is desaturating Purple bars show that the tolerable saturation is exceeded and that the tissue might be damaged. Page 43 DataTrak

Profiles / Dive Analysis D General dive information Title panel with dive number and information line with general dive data.
The information line shows for all dives the type of gas used, the lowest water temperature measured and the average gas consumption of the whole dive. In addition for no-stop dives it shows the minimum remanining no-stop time at the end of the dive, and for decompression stop dives the longest time to surface indicated during the dive.
Dive profile Graphical representation of the dive profile. Y-axis (left): dive depth in m (or feet). X-axis (below): dive time in minutes.
Alarms Type, time and duration of alarms. The following alarms given during a dive are represented in light colour in the profile and as a wide bar on the time axis with time and duration: ignoring the prescribed decompression stop ascending too fast, ascent alarm RBT Remaining Bottom Time used up, RBT alarm : out-of-breath alarm

Page 44 DataTrak

Profiles / Dive Analysis G Current position The vertical line indicates the current position in the dive displayed. You can move the marked position across the profile by means of the mouse or the arrow keys and. The data displayed in windows A, B and C refer to this current position. 6.2 Operation The graphics window is operated by means of the mouse or with keys. move back current position in the dive by 20-seconds increments. Ctrl back in 1-minute increments. Home directly back to the start of the dive. move forward current position in the dive by 20-seconds increments. Ctrl forward in 1-minute increments. End directly to the end of the dive.

Page 45 DataTrak

Profiles / Dive Analysis 6.3 Analysing dives The profile mode of your DataTrak software is an excellent training aid and tool, for the analysis of dives and the improvement of your own diving technique. By means of the dive profiles physiological processes in the body can be reconstructed and visualised which otherwise could only be represented in an abstract manner. The analysis of your dives allows you to reconstruct dives and to check your actions in certain situations. The profile addition to the dive data sheet allows a more detailed description of dive sites by allocating sights to certain parts of the profile.

Operation DataTalk is basically operated according to the following scheme: 1. reading the current settings of your dive computer. 2. checking and adjusting the settings. 3. writing (transferring) the new settings to the dive computer.
9.2.1 Read The reading of data from the dive computer is carried out in the same manner as when transferring data to the DataTrak logbook:

Page 61 DataTrak

DataTalk Connect the cable to a free serial port of your PC and establish the connections with Memo Mouse and dive computer (see p. 15). Start DataTalk. Select the function Read. The programme indicates readiness for importing data, and the timer starts counting down from 60 seconds. The data transfer has to be started within this time span. Switch your dive computer into logbook mode. Then enter the logbook. After activating the logbook, the data of the settings are transferred from the dive computer to DataTalk. The alterable settings are displayed in the DataTalk window. Now, adjust the settings to your needs.

9.2.2 Write

If you have adjusted the settings, these have to be transmitted back to the dive computer:

Page 62 DataTrak

DataTalk Select the function Write. The programme indicates readiness for transferring data.
s lock up your dive computer (Wake up).
Check the correct seat of all connections before starting the data transfer. Faulty transfer may
If the dive computer is still displaying a logbook dive then exit from its logbook. Then reenter the logbook mode and enter the logbook. After activating the logbook, the data of the settings are transferred from DataTalk to your dive computer. 9.3 Wake up If a transmission error occurs during the data transfer to your dive computer (e.g. if one of the plugs is removed or disconnected), the dive computer may get stuck in the set-up mode and no longer be operable. In this case, proceed as follows:
Remove the reason of the error at once (reconnect plug). Activate the function Wake up as quickly as possible. This ends the set-up mode. Your dive computer can be operated again. Check the settings (Read) and repeat the desired adjustments if necessary.

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DataTalk Error messages If you get an error message after using Wake up (battery empty, servicing necessary), repeat the procedure. If the same message appears again, take your dive computer to your retailer. Battery empty tells you that the dive computer battery ought to be changed. Servicing necessary Check and clean contacts and plugs and repeat the function Wake up. If the servicing message reappears the dive computer and the Memo Mouse have to be taken to the servicing point. 9.4 Adjustable standard settings Depending on the type of dive computer used, various settings can be altered by means of DataTalk. DataTalk recognises the type of dive computer in the function Read and displays the settings to be altered.

9.4.1 For all compatible dive computers Measurement units The measurement units of your dive computer can be switched from metric to imperial.

Metric

Imperial ft (feet) psi
Dive depth Air consumption

m (metre) bar

Page 64 DataTrak
DataTalk 9.4.2 For all dive computers with acoustic messages The acoustic signals attached to attention messages can be suppressed (see operating manual of your dive computer). This does not affect the optical display. Acoustic alarms and their optical displays cannot be suppressed. 9.4.3 For dive computers with air-pressure information Remaining pressure The standard setting of dive computers like Aladin is at the surface such that a dive is terminated with a remaining pressure of 40 bar. This safety pressure can be altered between 30100 bar. A minimum safety pressure of 30 bar is advisable in any case. In addition, pressure should not be lower than 30 bar because of the formation of condensation liquid in the diving equipment.
Sensitivity of the out-of-breath alarm If you find your Aladin Air X gives an out-of-breath alarm too frequently, you may adjust the sensitivity to your needs. An average sensitivity is set as a standard. First alter the sensitivity on large scale (3 steps). On your next dive, you test the alteration and adjust the setting more finely if necessary.
9.4.4 For Nitrox dive computers Partial pressure Maximum partial pressure of oxygen can be adjusted of oxygen between 1.20 and 1.95 bar. Standard value is 1.5 bar. ppO2max of more than 1.6 bar should not be set for safety reasons.

Page 65 DataTrak

Page 66 DataTrak

Terms of Licence

10 Terms of Licence
8 Any kind of duplication of this manual as well as the DataTrak and DataTalk software is

forbidden.

8 Disk copies may only be made for the purpose of data protection. 8 Rightful purchase of the software disk and of this manual entitles the purchaser to use the
software on one workstation. The DataTrak and DataTalk software must not be run on different stations at the same time. Copyright 1996 by Dynatron AG, Zurich Publisher UWATEC AG Engenbhl 130 CH-5705 Hallwil

Page 67 DataTrak

English

THE SYSTEM

OPERATING MANUAL

Active Light

English

SWISS MADE BY UWATEC AG

Operating scheme
Operating scheme for surface functions

B and E

B and +

B and

Sleep Surface Sleep

Input stage

DIVEPLAN

(or 3min)

Ready or Surface

LOGBOOK

automatically

(or 3s

(or 3m in)

Battery capacity

depth depth

dive time dive time

NO STOP

max. depth

tank data

deco info

Uwatec Aladin Air Z
Important remarks concerning signal words and symbols
This operating manual makes use of the following icons to indicate especially important comments: Remarks: Informations and tips which are important for optimal use of the functions of your Aladin Air Z.

Attention!

Information which draws your attention to situations and special features important for your diving comfort and the early avoidance of risk situations.

Danger!

Alarms which indicate risk situations and dangers. Ignoring these warnings can lead to situations involving danger to life and limb. These alarms must be obeyed!
The following symbols are used in the operating manual: Flashing display
Acoustic alarm signal -+E B Operating instruction for manual input Example: bridging contacts B and E
January 2000, Copyright by Uwatec Switzerland Uwatec Aladin Air Z

Safety considerations

You must carefully read this entire manual before using your Aladin Air Z. Diving has many inherent risks. Decompression sickness is among the most serious of those 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 or some other inherent risk of scuba diving. Unless you are fully aware of these risks and are willing to personally accept and assume responsibility for those risks, do not use the Aladin Air Z! The Aladin Air Z is a sophisticated dive computer to assist a trained and certified diver in making decisions concerning dive planning and execution. As with any tool, the Aladin Air Z may be misused if the following safety and operational precautions are not strictly followed. If they are followed, careful use of the Aladin Air Z can increase your diving enjoyment and reduce your risk of decompression sickness. If they are not, you will be placing yourself at serious risk for decompression sickness. While the Aladin Air Z is a technically advanced tool based on a mathematical model of decompression sickness, neither it nor any other diving computer (or table) can exactly monitor the physiological changes that occur in your body as you dive. In addition, each diver will vary in his or her susceptibility to decompression sickness and each diver will vary in his or her susceptibility to decompression sickness. In addition to this, each individual divers own susceptibility may vary from day to day. Combined with the fact that decompression modelling is an inexact science, and must be based to some extend on certain unproven assumptions, it is emphasis on you, the individual diver, to dive responsibly and to carefully follow all standard safe diving practices as well as the recommendations contained in this manual. Guidelines for the use of Aladin Air Z: The following guidelines for using Aladin Air Z are derived from the latest medical research for diving with diving computers. Following these guidelines will greatly increase your safety while diving, but cannot guarantee that decompression sickness will not occur. The Aladin Air Z is designed for dives made with compressed air only. Do not use the Aladin Air Z for dives made with nitrox or other mixed gases. Due to the danger of nitrogen narcosis do not dive deeper than 40 m. Aladin Air Z does not warn you in this respect. On all dives with the Aladin Air Z, make a safety stop for at least one to three minutes within the 3 to
5 metre zone. Always make the deepest dive of the day first when repetitive dives are planned, and for each successive dive make sure that the deepest portion of that dive is done at the beginning of the dive. If your diving cylinder is equipped with a reserve or J-type valve, make certain that the reserve is in an open (down) position. Failure to keep the reserve open will result in the improper calculation of dive data depending on tank pressure. All divers using dive computers to plan dives and indicate or determine decompression status must use their own computer which they take with them on all dives. Repetitive dives after exchanging the dive computer: Wait at least 24 hour before you start with the repetitive dive. If the Aladin Air Z fails at any time during the dive, the dive must be terminated, and appropriate surfacing procedures should be initiated immediately. On any given dive, all divers in a buddy group must follow the most conservative dive computer for that particular dive. Always observe the optical and acouctic alarm signals of the Aladin Air Z. Avoid situations of increased risk for decompression sickness which are marked with a warning sign in this operating manual. You MUST follow the ascent rates as indicated by the Aladin Air Z and if the computer should fail for any reason, you must ascend at a rate of no greater than 10 metres per minute. You MUST be familiar with all signs and symptoms of decompression sickness before using the Aladin Air Z! Seek IMMEDIATE treatment for decompression sickness should any of these signs or symptoms occur after a dive! There is a direct correlation between the effectiveness of treatment and the delay between the onset of symptoms and the treatment for decompression sickness. Ensure that you have enough Air for the Ascent. Do not use the RBT to the limit if prolonged ascents or an increased rate of breathing (currents) are expected. See also page 54-55 and 84.

VI Dive Planner ________________________Survey _______________________________Selection and Activation from Ready-Mode__________________________Selection and Activation from Surface-Mode ________________________Planning a No-Stop Dive ______________Planning a Decompression Dive _________Leaving the Dive-Plan-Mode ____________71 VII Communication Software for Windows _______________________MemoMouse, DataTrak and DataTalk 1.1 Personal programming of the dive computer (DataTalk) ___________ 74 1.2 Analysis and storage of real dives (DataTrak)___________________ 74 1.3 Updates (DataTrak, DataTalk)________ 74 VIII Trouble Shooting ____________________Trouble Shooting ______________________76 IX Appendix ___________________________79 Maintenance _________________________80 Technical Information _________________ 81 Conversion of Tank Pressure ____________82 Warranty ____________________________83 4.1 Recognition of warranty ____________83 4.2 Scope of the warranty______________83 4.3 Warranty period and claim __________83 Serial No. / Dealer address ______________86

I Introduction

3 Aladin Air Z More Safety in Diving Aladin Air Z Your Personal Companion The Calculation Model ZH-L8 ADT
_________________________________________10 _________________________________________10 3.1 Description ____________________________12 3.2 Advantages____________________________13 _________________________________________14

Safety in Diving

I Uwatec Aladin Air Z
1 Aladin Air Z More Safety in Diving
What can further increase your diving pleasure? The good feeling of having the greatest possible freedom of movement plus the highest possible safety. A dive computer which constantly monitors the data of your dive and your individual conduct meets these requirements. Aladin Air Z watches over the gas saturation of your body without interruption. With Aladin Air Z you dive more safely than ever before, although you can make more of your diving time thanks to the exact calculation of the air-supply. In addition, Aladin Air Z offers unmatched comfort and ease of operation. Aladin Air Z gives you increased safety due to the new calculation model. All the information necessary for safe diving are combined in one instrument.
2 Aladin Air Z Your Personal Companion
By considering your individual conduct, workload and temperature changes, Aladin Air Z is your personal control instrument. Aladin Air Z relies on the latest results of medical and physiological research for the calculation of decompression. This research has helped in the development of an adaptive calculation model unique to the present day. Aladin Air Z was exclusively developed for diving with compressed air and distinguishes itself from other commercial diving computers by a number of new functions: The new calculation model ZH-L8 ADT considers for the first time 8 body tissues, the divers conduct and the ambient conditions. Therefore, a more precise decompression indication is possible for risk situations, which increases safety in these cases. The measurements of scuba tank pressure are transmitted to Aladin Air Z by means of a transmitter. Faulty transmission of data between transmitter and Aladin Air Z is prevented by a number of precautions. Tank pressure can easily be checked at any time. In addition, the pressure rates allow calculation of the divers air consumption and a prediction of the remaining air time at the current depth. The calculation for RBT (Remaining Bottom Time) the time left to the diver until he must start the ascent according to the calculated decompression programme therefore includes consideration of tank pressure and the individual divers rate of air consumption.

3.2 Advantages On first dives with correct diving technique and avoiding risk situations, there are no extended decompression times. On the other hand, it is possible to react correctly in risk situations due to the realistic simulation of the physiological processes in the body. This increases safety considerably. Risk situations are, for example: Repetitive dives (especially with short intervals) and dives on several successive days Dives in cold water Dives with increased workload (currents, exertion) Yoyo dives Flying after the dive Excessive ascent rate.
In case of mistakes on the part of the diver, actual prevention of decompression sickness is possible for the first time due to the reconstruction of the bubble formation and its consequences. The correction of the decompression must not be confused with a real recompression, which serves as therapy of existing damage.

4 Safety in Diving

With its new decompression model and with the calculation of air-time Aladin Air Z offers a so far unreached level of safety. However, responsibility for the dive finally remains with the diver as before. The usual diving caution is still absolutely necessary when diving with Aladin Air Z. In case of diver mistakes (ignoring decompression stops, excessive ascent rate etc.) Aladin Air Z can calculate a corrected ascent instruction immediately which minimizes the occurrence of decompression sickness. The prevention of barotrauma and nitrogen narcosis still lies in the hands of the diver. Aladin Air Z is a highly developed technical instrument of high reliability. Despite this the user of the Aladin Air Z is to have an understanding of the physiological interrelations, to know the use of decompression tables and to have them on every dive. Should an incident occur, the detailed previous history of the incident is stored in the dive computer. The evaluation of these records allows better diagnosis and the most effective treatment for the diver.
II Aladin Air Z The System
1 Description 1.1 1.2 2.1 3.1 3.Setting Up (Transmitter and Dive Computer)
System hardware __________________________16 Safety of transmission ______________________17 Operating modes and functions ______________18 Operating_________________________________19 Active backlight ___________________________20 Operating modes __________________________25
Transmitter Dive Computer

4.1 4.2

Mounting of the transmitter _________________29 Pairing of transmitter and dive computer ______31

II Uwatec Aladin Air Z

1 Description
1.1 System hardware The Aladin Air Z system consists of three units: 1 The transmitter is installed at the high pressure outlet of the regulator. It measures tank pressure and radio-transmits the results to the dive computer, where they are also used for the calculation of air consumption and dive data. 2 The dive computer displays only the important dive data. The 2 part display shows general dive- and decompression data in the upper part; data calculated on the basis of the measured tank pressure are displayed in the lower part. 3 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. It is possible to use Aladin Air Z as a conventional dive computer. In this case calculations depending on air data are not possible and the lower part of the display does not show air data.

or after 3 minutes

5c Leaving the dive-plan: B and E for approx. 3 seconds or automatically after three minutes.

3.2 Operating modes

Aladin Air Z works in various operating modes: Sleep-mode: Activation: automatically When Aladin Air Z is not used it is in the so called sleep-mode. In this case, the electronics are sleeping for the most part, the display does not show any information. The computer is briefly activated once every minute to measure atmospheric pressure. The display remains switched off. If a change in altitude is recognized, Aladin Air Z switches to > surface-mode for 3 minutes.
DO NOT FLY DIVEPLAN LOGBOOK

S L O W

DECOSTOP

ft h m

psi bar
Ready-mode: Activation: By touching contacts B and E from sleep-mode. To check the display, all signs light up for 5 seconds. Aladin Air Z switches into ready-mode afterwards. In ready-mode, the display is switched on and in certain circumstances altitude sections are also displayed. If the paired transmitter is switched on and located within transmitting distance, the tank-pressure is displayed, in other cases only <--->. On touching contacts B and E in ready-mode once more, Aladin Air Z displays the remaining battery capacity in percent. Three minutes after activating readymode, Aladin Air Z falls back into > sleep-mode.

tank data tank data

Dive-mode: Activation: automatically, when depth more than 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 with allowance for performance and temperature, nostop time or decompression prognosis is determined, ascent rate is controlled and displayed and the correctness of the decompression procedure is supervised.
Wait-mode: Activation: automatically on reaching the surface. The wait-mode is activated when the surface is reached after a dive. At the surface, the dive is not closed and entered into the logbook for an interval of 5 minutes. This allows a short surfacing for the purpose of orientation.
Surface-mode: Activation: automatically after a dive or when changing altitude. After a dive has been closed, Aladin Air Z is in surface-mode. All data belonging to the surface interval are calculated: Calculations are made on microbubble formation, on state of saturation of tissues after allowing for skin temperature and the assumed diver performance on the surface, on desaturation time and on no fly interval time.

In order to save energy, Aladin Air Z falls into the so called surface-sleep after 3 minutes. The functions of surface-mode are then carried out in the background. The atmospheric pressure is measured in surface-sleep once every minute. If the atmospheric pressure decreases, for example because of change of altitude, Aladin Air Z automatically switches from sleep-mode or from surfacesleep into surface-mode and displays the adaptation time. The adaptation time is the time after which all body tissues have adapted to the ambient pressure (= desaturation time).
Logbook-mode: Activation: manually by contacts Data of 19 past dives can be called up in the logbook-mode. It shows maximum depth, dive time, preceding interval*, altitude sections and, where appropriate, alarms. A dive is entered in the logbook if it has lasted more than 2 minutes. When the dive was a repetitive dive then it also shows the interval which has passed since the last dive or a preceding change of altitude. The last 37 dives and the last 200 minutes of dive-profiles can be downloaded out into a MemoMouse and later from there into a personal computer (Windows). * Preceding interval is only shown when the computer calculated that there was a residual nitrogen uptake at the beginning of the logged dive.
Diveplan-mode: Activation: manually by contacts The diveplan-mode assists the planning of a future dive. It allows planning of no-stop and decompression dives with freely determinable depth and dive time. On repeat dives, the surface interval time can also be chosen at will. Calculations are based on the temperature data of the last dive and assume a normal workload. 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 <SOS> instead of the depth. The computer is locked from use for the next 24 hours. Desaturation is further calculated including microbubbles in the tissues. Diving is again possible after 24 hours, but the SOS-mode can influence the calculations of Aladin Air Z for three days after the incident due to the possible presence of microbubbles. If a diver using Aladin Air Z experiences a diving accident resulting in decompression sickness, the dive can be analyzed by means of the MemoMouse and DataTrak-software. An automatic program transmits the logbook data after connecting the dive computer via MemoMouse with a PC once a minute from the locked dive computer to the personal computer. Dive computer, MemoMouse and PC need to be connected. The PC has to be ready for receiving data and the DataTrak download-procedure has to be activated. Serious injury or death may result if a diver does not seek immediate treatment at a recompression chamber should any signs or symptoms of decompression sickness occur after a dive.
4 Setting Up (Transmitter and Dive Computer)

It is possible that Aladin Air Z demands a decompression stop within the no-stop phase because of the danger of the formation of microbubbles. Decompression time necessary for the prevention of microbubbles can increase massively, if the ascent rate is exceeded. From great depth, too slow an ascent causes super-saturation of tissues and an extension of decompression time and total ascent time. From little depth, shortening of decompression times is possible because the tissues already start desaturating during the ascent.
Optimal ascent rate varies between 7 and 20 m/min dependent on the depth. It is displayed in percent of the set value. If the ascent rate is bigger than 100% of the set value, the black arrow <SLOW> appears. If the ascent rate exceeds 140%, the arrow starts flashing. An acoustic alarm occurs from 110%, its intensity depending on the amount of excess.
Messages: Ascent rate Optical alarm

Acoustic alarm

Excessive ascent rates of longer periods are entered in the logbook. Action: Reduce ascent rate
4.5 Decompression information No-stop time is displayed, if no decompression stops are necessary yet. The arrow (NO STOP) is visible. The figures indicate no-stop time in minutes.
No-stop display <99:> means remaining time of 99 minutes or more. No-stop time is calculated assuming normal workload and current water temperature.

Messages:

There is an acoustic alarm, if no-stop time is less than 1 minute. In this last minute, the no-stop display shows the flashing value <0>.

Action:

In order to prevent a decompression dive, you have to ascend a few metres after this message.

Decompression values

On entering the decompression phase, the arrow <NO STOP> extinguishes. The arrow <DECOSTOP> appears. Right beside the arrow, the lowest decompression stage in metres is displayed. Beside the decompression depth, the decompression time of the displayed stage in minutes appears. The display <9m 3:> means that a decompression stop of 3 minutes at a depth of 9 m has to be made. When a decompression stop has been finished, the next higher is displayed. When all decompression stops have been made, the arrow <DECOSTOP> extinguishes and the arrow <NO STOP> reappears. The indication of time on the lower right shows the no-stop time again.
Messages: The decompression alarm is activated if the decompression stop is ignored. Arrow <DECOSTOP> flashes and an acoustic alarm is initiated. Due to the formation of microbubbles decompression can increase massively while a decompression stop is ignored. If the surface is reached during the decompression alarm, the arrow <DECOSTOP> continues flashing, in order to point to the risk of a decompression accident. The SOS-mode is activated after 3 minutes after the dive. If the total (cumulative) duration of the decompression alarm is longer than a minute it is entered in the logbook. Action: Descend to the prescribed decompression depth at once!

The acoustic alarm on exceeding the RBT is suppressed at depths less than 7 m if Aladin Air Z is in the no-stop phase.
Messages: If the RBT drops below three minutes, an acoustic attention signal is activated and the RBT (only figures) starts flashing.
When the last minute has passed (RBT=0) an acoustic alarm is activated every 4 seconds. The RBT is flashing.

Procedure:

Start ascent at once.

5.1 End of a dive

After reaching the surface, Aladin Air Z 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 coming to the surface for orientation and the resumption of the dive afterwards. When the dive is closed after 5 minutes in wait-mode, it is entered into the logbook and Aladin Air Z switches into surface-mode. In surface-mode, Aladin Air Z shows desaturation time and no fly time.

5.2 Desaturation time

Aladin Air Z is in surface-mode. The arrow DESATURATION appears; beside it desaturation time in hours and minutes is displayed. Desaturation time is continually indicated until the next dive or until it reaches zero. The display is switched off to save energy 3 minutes after the last manipulation (surfacesleep-mode). Desaturation calculations continue to be made in the background.
In some cases, desaturation times of Aladin Air Z are considerably longer than those of other models, because the calculation model assumes reduced physical activity at the surface and calculates with shorter half-time periods. If desaturation time reaches the value 0, all tissues are desaturated. Aladin Air Z switches into sleep-mode.

5.3 No fly time

The waiting period until the next flight is indicated as follows: <DO NOT FLY>; beside, time in hours. In some cases the no fly time is longer than with other models (reason: see desaturation time).
The no fly time must be strictly observed because of the danger of the formation of gas bubbles.
5.4 Warning of bubbles Through repetitive dives microbubbles accumulate in the lungs if the surface interval is not long enough. Ignoring decompression or an excessive ascent rate depth dive time can also lead to bubbles in tissues. In certain circumstances, in order to reduce h the risk through further repetitive dives, an extended surface interval should be planned. The prognosis on the formation of bubbles during the surface interval allows Aladin Air Z to advise the diver to extend the surface interval. h If the display <Atn> (=attention) is visible instead of the depth during the max. depth deco info surface interval (surface-mode), the diver should not undertake another dive. The extension of the interval prevents a high concentration of bubbles in the lungs during the planned dive and avoids a risk situation.

DO NOT FLY DESATURATION

If the dive has to be made during <Atn> time, the <Atn> time of the following dive can increase considerably. If the dive is made in spite of the display <Atn>, the diver must cope with a clearly shorter no-stop time and an extension of decompression.
Aladin Air Z also measures the atmospheric pressure in sleep-mode. If the computer detects a higher altitude section, 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 treats it as a repetitive dive, since the body still has a higher saturation.
The entire altitude range is divided into four sections which are influenced by meteorological circumstances. That is why the following altitude sections overlap on their fringes. The altitude section is indicated at the surface, in the logbook and in the dive planner by stylized mountains, if a mountain lake altitude is reached. Section 0 is not indicated. In the following, you can see the approximate altitude ranges of the four sections:

4000 m 3000 m

switching at approx. 610 mbar switching at approx. 725 mbar switching at approx. 815 mbar switching at approx. 905 mbar

2000 m

1000 m
In order to assure optimal decompression also at higher altitudes, the 3 m decompression stage is divided into a 4 m stage and a 2 m stage (the prescribed decompression depths are in consequence 2 m, 4 m, 6 m, 9 m.).
Aladin Air Z can be used as decompression computer up to an altitude of 4000 m. If atmospheric pressure is below 620 mbar (higher altitude than 4000 m above sea level), no decompression information is displayed any more. The indication of the RBT is also impossible, since decompression data are necessary for its calculation (tank pressure is still displayed, of course). Diveplan-mode can no longer be started, since no decompression information is available. Beside the display of the altitude section 3, <HI> (=high) appears to tell the diver that he will not get any decompression information for the dive. Very small differences in the pressure sensors can cause an indication of different altitude sections of two dive computers at the same altitude on the fringes of the altitude ranges. These differences are not meaningful and do not interfere with the safety of Aladin Air Z. But if an altitude section is displayed at sea level or the altitude informations of two computers differ by more than one altitude section (e.g. section 2 instead of 0), there may be a defect of the computer. In this case, send your computer back to your retailer for checking.

On any given dive, all divers in a buddy group must follow the most conservative dive computer for that particular dive. If the Aladin Air Z fails at any time during the dive, the dive must be terminated, and appropriate surfacing procedures should be initiated immediately. You MUST follow the ascent rates as indicated by the Aladin Air Z and if the computer should fail for any reason, you must ascend at a rate of no greater than 10 metres per minute. You MUST be familiar with all signs and symptoms of decompression sickness before using the Aladin Air Z! Seek IMMEDIATE treatment for decompression sickness should any of these signs or symptoms occur after a dive! There is a direct correlation between the effectiveness of treatment and the delay between the onset of symptoms and the treatment for decompression sickness. Always observe the visual and acoustic alarm signals of the Aladin Air Z. Avoid situations of increased risk which are marked with a warning sign in this operating manual. Avoid repeated ascents and descents (yo-yo diving). Avoid exertion at depth Plan shorter duration for dives in cold water After completion of the decompression or at the end of no-stop dives, ascend the last metres to the surface very slowly. Ensure that you have enough Air for the Ascent. Do not use the RBT to the limit if prolonged ascents or an increased rate of breathing (currents) are expected. 1.3 Minimizing risks on repetitive dives There is still excess nitrogen in the body due to the history of the preceding dives. Depending on the duration of the surface interval, there may even be gaseous nitrogen (microbubbles). You can minimize the risk by observing certain rules: observe the same rules for repetitive dives as on your first dive plan repetitive dives at a smaller depth than the first dive plan a sufficient duration of the surface interval (min. 3 - 4 hours) only go on repetitive dives, if no indication <Atn> is visible on the display plan a day without diving once a week repetitive dives after exchanging the dive computer: Wait at least 24 hour before you start with the repetitive dive.
1.4 Action in risk situations If the dive includes a risk situation, Aladin Air Z reacts automatically and appropriately to the situation. A change of decompression is indicated if it is actually necessary to minimize the risk. The diver can further reduce the risk through sensible conduct on the next dive and at the same time prevent long decompression stops. A few examples on the following pages: Situation 1: Reaction of computer: The diver ascends much too rapidly: The model calculates the formation of bubbles due to the excessively rapid ascent. No-stop time is shortened or a longer (and eventually at greater depth) decompression prescription is displayed in order to assure sufficient decompression.

Recommended action of the diver During the dive: Observe the new decompression instruction of Aladin Air Z.

After the dive:

Watch out for symptoms of an arterial gas embolism and decompression sickness. Before the next dive, plan a sufficiently long interval (display <Atn> should have disappeared).

Situation 2:

The diver disregards the prescribed decompression depth for some time. The model calculates the formation of bubbles due to ignoring decompression. A longer (and eventually at lower depth) decompression is displayed in order to assure sufficient time for desaturation.

Reaction of computer:

Recommended action of the diver During the dive: Descend to the prescribed decompression depth at once. Do not descend to greater depths any more. Observe the decompression instruction of Aladin Air Z.
Watch out for symptoms of arterial gas embolism and decompression sickness. Before the next dive, plan a sufficiently long interval (display <Atn> should have disappeared).
Situation 3: Reaction of computer: The diver is exposed to exertion for a long period (e.g. in a current). An extension of the decompression is indicated, if the muscle tissues are relevant for the decompression of the dive.
Recommended action of the diver During the dive: Avoid further physical exertion if possible. Make a break for relaxation. Check the decompression information and the RBT frequently on your Aladin Air Z. Decompression time can increase and RBT can decrease considerably. Refrain from intense physical exertion on your next dive. In addition, a longer surface interval can shorten the decompression of the next dive. It is impossible to have a sufficient surface interval so that the indication <Atn> would extinguish prior to the next dive (e.g. on organized diving trips from a boat). Aladin Air Z calculates a more conservative no-stop time or decompression prescription in order to allow nitrogen in the vicinity of bubbles enough time for desaturation.

Situation 4:

Recommended action of the diver During the dive: Be careful to have a profile 'low in bubbles' on your next dive (limit depth to 25 m max., slow ascent). Before the next dive, plan a sufficiently long interval (display <Atn> should have disappeared).

V Logbook

5 Survey Selection and Activation Selection of Dive Leaving Logbook-Mode Output on PC
_________________________________________60 _________________________________________61 _________________________________________62 _________________________________________63 _________________________________________64

V Uwatec Aladin Air Z

1 Survey
The Aladin Air Z records the last 37 dives and the dive profiles of the last 200 minutes of diving (see Output on PC page 64). 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:

alarms during the dive

altitude sections if any maximum depth

dive number

air consumed during this dive out of breath warning made during the dive
duration of surface interval (only with repetitive dives)

dP=differential pressure

If a dive is started within adaptation time (after a change of altitude), the adaptation time is displayed instead of the surface interval.
2 Selection and Activation
1. The logbook is selected by bridging contacts B and + in ready- or surface-mode. Indication <LOGBUCH> appears. If Aladin Air Z has been in surface-mode before, the surface interval appears as well. You go back into ready- or surface-mode by B and.
2. In order to activate the logbook, bridge contacts B and E. The most recent dive is displayed (DIVE 1).

3 Selection of Dive

1. Bridge contacts B and + to get the information of the dive preceding the most recent one. Display <DIVE 2> appears.
2. On every further bridging 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 effects switching back from older dives to more recent ones.
4 Leaving the Logbook-Mode
Touch contacts B and E. Aladin Air Z switches back into ready- or surfacemode. This also happens 3 minutes after activating logbook-mode.

5 Output on PC

By means of a PC-interface and the DataTrak software, both available as an accessory, the information of the last 37 dives can be read out. In the same way, the dive profiles of the last dives, up to a total of 200 minutes, can be reproduced. Time and date of the dive are entered automatically, based on the clock of the PC-system when the data are transferred via interface. The possibilities and the procedure of this data transfer are described in a separate manual.

VI Dive Planer

VIII Trouble Shooting

1 Trouble Shooting
________________________________________ 76

VIII Uwatec Aladin Air Z

symptom No reception of tank pressure data. possible reason(s) Transmitter and computer are not tuned to each other (paired). Transmitter or receiver in the computer are defective. procedure(s) Pair transmitter and computer (see chapter II 4). If the pairing is not possible with another transmitter, the receiver in the computer is defective. Have transmitter or dive computer repaired. Change the pressure by breathing from the regulator. Tank data will reappear. Mount transmitter correctly (see chapter II 4) If the pairing is not possible with another transmitter, the receiver in the computer is defective. Have transmitter or dive computer repaired. Make comparison at 20 C or check the tank pressure compensated to the atmospheric pressure for comparison (see appendix, chapter IX).
In surface mode if there is no decrease in pressure for 3 minutes the pressure data will not display. Bad reception of tank pressure data. Transmitter is not mounted correctly. Transmitter, or receiver in the computer are defective.
Displayed tank pressure does not correspond to pressure measured by a manometer (pressure gauge).
By compensating the temperature, the pressure displayed is valid at 20 C. If air- or water-temperature differ from this value, a difference to the value given by a pressure gauge is possible. Tank and transmitter do not have the same temperature (only possible in air). Manometer/pressure gauge is not accurate (temperature 20 C).
Leave the tank with the regulator mounted in the open air for 5 -10 minutes. Measure tank pressure with another manometer/pressure gauge (at 20 C).
symptom The logbook does not show any air consumption (dp) for a certain dive. Altitude section does not correspond to the current altitude. possible reason(s) No tank pressure signal was received at the beginning or end of the dive. Transmitter and dive computer were not paired before the dive started. Atmospheric pressure is especially high or low. Air pressure measured by the computer is wrong. procedure(s) Mount transmitter correctly (see chapter II 4). Pair transmitter and computer (see chapter II 4).
Check meteorological information. Send in dive computer for servicing (only if altitude section is wrong by more than one section, see chapter III 6). Study chapter III 5 very carefully. Plan sufficiently long surface interval and dives at lower risk.
Desaturation time and/ or no fly time are very long.
Slow tissue and/or little workload at the surface. Many repetitive dives, yoyo-diving or disregard of decompression stops have caused a large number of microbubbles, which have to decrease first. Many repetitive dives, too fast ascents, yoyo-diving or disregard of decompression stops have caused a large number of microbubbles, which have to decrease first. Too rapid ascent or ignoring decompression stops have caused a large number of microbubbles, which leads to an attention message (warning of bubbles).