Diving Assistant - User Manual
Contents
1. File Actions Help Home F Config 7 Dive profile Report Detail data T M Values Dive profile data 3 7 Beginning Gas No deco Action Depth m ft Belia A poe e me pepe Honus a ma Time tofly Ceiling m ft Diving 10 00m 32 81ft 1 00 000 38 02000 24247 1 9341 0 00m 0 00ft 0 00m o oo 0252 7 1 00 00 0 00m 0 Diving 10 00m 32 81ft 1 00 000 39 02 000 2 3840 1 9341 0 00m 0 00f 0 00m 0 008 02 51 1 00 00 0 0m 0 Diving 10 00m 32 81ft 1 00 000 40 02 000 2 3466 1 9341 0 00m 0 00f 0 00m 0 00ft 02 50 1 00 00 0 00m 0 Diving 10 00m 32 81ft 1 00 000 41 02 000 2 3124 1 9341 0 00m 0 00f 0 00m 0 00ft 02 49 1 00 00 0 00m 0 Diving 10 00m 32 81ft 1 00 000 42 02 000 2 2810 1 9341 0 00m 0 00ft 0 00m 0 00ft 02 48 1 00 00 0 00m 0 Diving 10 00m 32 81ft 1 00 000 43 02 000 2 2528 1 9341 0 00m 0 00f 0 00m 0 00ft 02 47 1 00 00 0 00m 0 Diving 10 00m 32 81f 1 00 000 44 02 000 2 2356 1 9341 0 00m 0 00 0 00m 0 00ft 02 46 1 00 00 0 00m 0 Diving 10 00m 32 81ft 1 00 000 45 02 000 2 2194 1 9341 0 00m 0 00f 0 00m 0 00ft 02 45 1 00 00 0 00m 0 _ Ascent 10 00m 32 81ft 0 00 600 45 02 600 2 2040 1 9341 0 00m 0 00f 0 00m 0 00ft 02 45 100 00 0 00m 0 Ascent 9 90m 32 48ft 0 00 600 45 03 200 2 2038 1 9241 0 00m 0 00 0 00m 0 00ft 02 54 1 00 00 0 00m 0 Ascent 9 80m 32 15 0 00 600 45 03 800 2 2016 1 9141 0 00m 0 00 0 00m 0 00ft 03 04 1 002. Deep stops Pyle SSA CMAS NAUI GF Safety stops Atmospheric pressure model ISA NOAA Linear Maximum partial pressure NOAA Oxygen toxicity limits NOAA Proprietary modes conservative dynamic Type of limit tables Supported gases in the breathing mixes Environment settings Individual settings Measure units In dynamic mode 1 minute resolution on constant depth every 0 1m variable depth Build in limit tables ZH L16A 16 17 tissues compartments ZH L16B 17 tissues compartments typical for decompression tables ZH L16C 17 tissues compartments typical for dive computers The ability to use tables based on the Wormann or Biihlmann model No limit of tissues compartments quantity engine only Open XML format Dynamically calculated oxygen toxicity OTU CNS The equivalent narcosis depth END The minimum and maximum partial pressure of gas Depth and time limits Each blend based on Oxygen Nitrogen and Helium The build in definitions of typical mixtures Oxygen Nitrox 30 50 Trimix selected The ability to choose the water area fresh inlandwater and seawater The ability to adjust the altitude above sea level or the atmospheric pressure Computer mode Limits table M Values Type of breathing mix Parameters of diving cylinder set Typical air consumption rate The maximum depth The maximum dive ti
3. 2011 2013 REAL DATA S C SCUBA DIVING ASSISTANT Version 1 0 130424 22 21 00 USER MANUAL Published 2013 04 Download version PDF DivingAssistant_UserGuide_EN pdf This document is a basic user instruction of package Diving Assistant Diving Assistant Please refer to it before using the application Software is under constant development that is why some of the descriptions photos can be slightly different from the current version of the application In this case if you notice significant differences between the application and the user s manual please let us know and contact the REAL DATA http www real data pl en 1 31 Table of content The basic package Teawires isles si2usis as sceu ais tes evden i EEE AEE E E RE EA RE 4 UTEP OR TAIN VI aa a a E E E EE Pons ane E E ENE 5 Tis RUT POSS aia a E aE N a R E aE e E E E A E E eeaaooerencewoucnees 5 12 Divinssafetyoe a e TA ene ae E TA A EAE TAT E E E 5 ETa TSZ mE A A A A AAE AA A ENE AEE 5 2A few Words OF inttod ctioN esiisa kergiant heceabadeunisbteeksa sane e EEE E As R EA 6 3J Mea syre its so ion eeni n rene E E E E E ned AE O EREE e 7 4 System config ration eienen e a a a a a a 8 Gh Dh FDA SING ayes rinsa oae ea aa Ga ic a E E lo cc E a A led sada E a AE 8 4 1 1 Altitude and atmospheric pressure ars vcrivccdevudcsuaiginer readin tawiv ace iad nsheateae 8 4 1 2 TDC OF Wate Reier eani E ued cash EEEa a AE R a cay toned O Ae ien Ee resa galea a 9 4 2 Breathing
4. 5 93 sr an non anan nel nana nnn c Runtime min Basic information Ascent rate m min 10 Bottom depth m 20 Dive time min 6h31m Descent rate m min 15 Deepest ceiling m 0 Bottom Time min 2h29m Surf altitude m 0 Min tolerated depth m 0 00 Time to fly min 16h24m Water Fresh Plan steps 1300 Engine RDATdive zhl16 1 0 13074 445 Img 1255x300 1255x300 Language English English Mem 14MB License DEBUG It s safely now We check and compare the results with tables of decompression and our dive computers and you may continue the preparations 30 31 10 The required technical parameters of a computer system To make the software worked correctly it should be met the following recommendations for your computer and the operating system configuration parameters The application can run on other computers but there is no guarantee they were not tested The recommendations are also included in the License Agreement 10 1 The operating system The application was created with the aim of Microsoft Windows in the latest versions Windows 7 SP1 and Windows 8 We also tested the correct operation of the ever popular Windows XP SP3 The application should also work correctly on Windows Vista but on this platform was not fully tested We recommend that before the installing process it was installed the Microsoft NET platform but not older than v
5. 00 0 00m 0 Ascent 9 70m 31 82ft 0 00 600 45 04 400 2 1993 1 9041 0 00m 0 00 0 00m 0 00ft 03 16 1 00 00 0 00m 0 uy g Actions Recalculate lt User Pian lt Profile E Auto row size Engine RDATdive zhl16 1 0 13074 445 Img 1293x307 1293x307 Language English English Mem 12MB License DEBUG 7 1 Column description The meaning of the each columns of the result sheet are described in the following points 21 31 7 1 1 Action The Meaning is the same as the user s plan and the compact profile described in sections 6 1 2 1 and 6 2 1 2 7 1 2 Depth The depth at the end of the action which is expressed in meters or feet of water column 7 1 3 The exposure time The exposure time of the breathing mixture for the action on the diver s body counted in minutes 7 1 4 Total dive time Total time from the start of dive plan 7 1 5 Beginning Initial pressure For the row of type Beginning it is the atmospheric pressure prevailing for the specified altitude For other rows it is approximate value of the gas pressure in the tissues of the diver for rows of calculations while diving It is shown for illustration purposes For the calculation purposes are used the partial pressure of gases which are calculated for each type of tissue compartment separately 7 1 6 Gas pressure The pressure of the breathing mixture after the reduction on the specified depth w
6. 15 52 ORY GEMS AGC Mitsi nsei sn a a aE ia EE bone a R A E 15 5 2 1 Acute form of central nervous system CNS ccccccssccesscessecsseceseeceeeeeseeceseceseeseaeeeesneees 15 5 2 2 Chronic form pulmonary OE Vlei eo SG hook Maile das Maks cer Ne odes Sn Maal es te dee nee avones 15 5 3 Partial pressure of oxygen PP OD secs sia escesieg crates heeicte ha taser phase daan ht web lade aeneneetedcs 16 5 4 Equivalent narcosis depth CEN Dy crseisnesenssivccsvas sessthaah daiecsiveiacstucdsd caeaecctdtonssassielenlarataaceuecs 16 5 5 Amount of the breathing Cas MIX WIE ss sce rsts ser eeestoccsscatesareensad Da Gk amen dupmatimnwaes 16 6 A dive planning and dive prot les fccscis testi ot Garcia vaeasal acd abies Ms aaoubasaeehdiul lates tastbornceam ates 17 OE TING MISET SPL Abe acess E E eae te vue esate E O EE E EE E esate UE estes 18 6 1 1 The choice of the rounding WAY cosas iucestzetatvieed ius then adioas ra Leavatecdaltvasadeuieihacaeteuasuaysiaesatand ives 18 6 1 2 Description OF plan columns erenneren etaciasudsh E oenetedaeas tee wel a 18 eM IA Ls PS GOUT VFS saa asic sata esa lasses seid ahaton edlestes nba eats E E 18 6 1 22 D pth a oN sold det a a OMG asset Cea RAS ples E lds Age at 19 D gt Tie CTA LATO a D eee hea acetate acate sua aPass E EE E E E E ET 19 6 2 Th reswlting plan dive Profile y sca vice stsncansensceyshdaseite sand tarere aaa E a a EaR EELEE aA 19 62 Avl Statt ME 2 A R a E E as eta E T a E 19 2V 2A HOD oin a
7. 22 TPRI MATE NS EW en rey dcaa weet called a a ley aun ees G44 ee aea a ements callie E E a e 22 PTO C iling Window uenn a a aE chee thd Maa ul Ns ba cian Gal ie Ciel ahaaateg 23 AAVIEV Pat ors si eccsseices E E T 23 Tesh Spl ads PLAIN EET ern vga aa ramen ace E cen aeh lau savas aes ae rads 23 FIIS END lc cae eS lc a ec E E Ee EEEE R S A E E R E E A 23 TRIETA AG INS o e thee caerulea A A a N 24 PEIS Total OFU onered eene ae e R a AE A A Gilg ane o E 24 TAITO Alti de nenna EN R E A O N E EA E S 24 Pel TE CREES MNES E AA A A A E AEA O 24 TEIS WIET arier ie eo cage e E A EAEE E E A E EAE A wid ta 24 7 1 19 Compartments count quantity of TISSUES ve c3vccineconrcovasdecvessssussviecse iccaveunnavendanecsonstcavensns 24 Del ZO CSSA BSS nne o a A EEE Gabon a E e e EEEE unas EORR 24 Warming and alarms i Sa pa leds noe a cere a a raaa EE E E pte tans ESE aS 25 8 1 Step of plan reported an exception some limits can be exceeded Default eee 25 8 2 Maximum depth is exceeded MaxDepth ccccccssscssseceseceeseceseeeseeceseeeseeceseeeseeeeeensneesaes 25 8 3 The maximum dive time is exceeded MaxTime ccccsccccssceessecsessecessseeessseeeeeseesseeeeeeees 25 8 4 Limit of equivalent narcotic depth is reached END cccceesceeseeeseeeteeeeeeeeneeeeneenneeeeeanees 25 8 5 The limit of the oxygen toxicity has been exceeded OTU 0 ceeccecccceseceteeeeeeeeteeeteeeeeaees 25 8 6 The daily limit of oxygen toxicity OTUD cisse
8. Descent rate m min 15 Deepest ceiling m 0 Bottom Time min 51m Surf altitude m 681 Min tolerated depth m 0 00 Time to fly min 16m Water Sea Plan steps 334 Engine RDATdive zhl16 1 0 13074 445 Img 1241x261 1426x300 Language Polish Poland English Mem 14MB License None After entering basic configuration data you can go to the plan of your dives The separate tab is used for this purpose It is called Dive profile where are placed all the basic information about the current profile and thus the assumed plan of the dive the resulting data of the dive profile with the optional alerts graphical representation of the profile and summary Individual panels can be scaled grabbing by your computer mouse the boundary between them and dragging them to the sides or up and down Data entering on this tab is very easy There is a simple table to fill in the upper left panel This table discussed in the next sections There three buttons on the top toolbar Validate which verifies the data entered by us and makes possible correction Recalculate which calculates the dive profile for our plan Clear deletes the user s plan All configuration parameters are included during the calculation Additionally decompression stops are calculated and safety stops also are taken into account Calculation results can be seen in the upper right panel and on the graph at the bottom On a separate tab are also available de
9. OE A ROE a E E A A 19 6 21 33 ime of d ratioM neceye Reet ney e A AA ry ee ne SPN ay Ae nn 20 6 2 1 4 Pressure in the diving cylinder tank pressure iscccscissscccseccsssccsscdesidsvecraxcesndaavapvetatdne cvvaes 20 Ge ans seated A A A EAE EEE ede ees EN EE A EE A 20 6210 END e e EA E E E err E R E E T TE R a e 20 02 INS annua a a OG ae a Ce doula catia esha nae D oad 20 02 6 8 ol Ore weer E ER an Ren Te earn NTC nS ORONO Ens Ree ne TN Aenea ree pene eee nee 20 EP DC Utd E RETAS AE AE E 20 6 22 10 Comment Remar ks 5 iesiri oiei teers eriin Errea RTE Ea E EEN eS 20 6 3 A graphical view of diving Proliles ssc ascsicaicnusudsesessusloseeOeils duns MintansdauseieesucniehiaadyaeiecGs Op eededese 20 6A SUMMA ioe eaters sheds dee cutis a subs a a e aar A a a aea eo 21 T PTO be ata Cera tls nezomrie n havens ben tbe lo DUNG E A E E RES 21 PANO AT CES CHAD TION oosastdact co aua oie cased atacwnscedesaalsact A E E RA ut E aNs 21 Pe CI EE TOI o EE AE E H A AA A AEE S A E AE A AN E E Bosades 22 Mee LD Depths nni nnen E a N A R De as iret EE E A 22 Ti The exposure timen noorie eii couse R A E EEA e EA AE EENE 22 Teli Total dive iMeanesoii a e a a R ab ae aoas aSa sete E O 22 T1 5 Beginning Initial pressure sarane eat oe a ln E E a e R 22 Del CAS S EIA AE E A EEE EEE EEE cs T E E EEEE EAT A E EE 22 TAG The first decompressi n Stop rospi dane euinansedionnned initier i bene aia iE a iN E EOE Nasa 22 T18 No d compr ssion timene are A AEE A a E A aT
10. Remember that if the deep stops were planned it should not be ignored This is due to the fact that this stop can affect the point of the mandatory stops and the safety stop If you do not want to use the deep stops turn it off in the configuration 6 2 1 2 2 Decompression The mandatory decompression stop The occurrence of such step in the plan means that it probably will not be the recreational diving If your diving organization for your grade recommends no decompression dive you should modify the input data for example reduce the estimated time or reduce the depth of the dive It may also help change breathing mixture to Nitrox but not sure the Trimix Note The omission of the decompression stop is not acceptable for any reason 6 2 1 2 3 Safe stop This is a standard safety stop recommended by all diving organizations The 19 31 duration of this stage may be subject to minor changes depending on other stops 6 2 1 3 Time of duration Duration of the current step 6 2 1 4 Pressure in the diving cylinder tank pressure The breathing mixture pressure in the diving cylinder at the end of the stage Pressure is presented in bars 6 2 1 5 PPO2 The current partial pressure of oxygen in the breathing mixture at the end of the stage 6 2 1 6 END Equivalent narcosis depth at the end of step 6 2 1 7 CNS The percentage value of the permissible value units of oxygen from the point of view of the nervous syste
11. Setiadi nnn E a E E E A ei E A a 9 42 ASH AUTEN MIXtULE caninin a N Scat cascade N a a E 9 4 2 2 SCR s iface consumption rate nene oin rie e eE Ea a aces a E 10 4 3 PANTY limits iol cs ceva dass ceca aE Ta E E S AE EEE A ESA E EE ET en os ees 10 Bh A WANS a DATA 10Na nS DEN EAA AA A A E E A EE E xondines 10 4 3 2 Themaxim midive imense nesir e E aE nr oy eee arene E Cae Cee a rae 10 4 ZI CNS HM nerea a E a E cnt EE E E A EEE 11 4 3 4 END equivalent narcosis depth ssssesesseessseseesressesetssesssesetsstssresressessresseesessresseeseeesse 11 4 3 5 Mu ltidiving rep titive GIVES einen n iere Naas E E E eeuseaanes 11 4 3 6 Minimum pressure in diving cylinder reserve ssssesesesseseeseseseeserssresreseessesressesseesresse 11 4A Simulation Settings snr e i a E a E e Eea EA a ENEE D E RE 12 4 4 1 Computer operation mode ssesesesseseessessesetsssesresrtssresresstsstesressesstessttsssttessrressreessreessee 12 AAD Ii GS Leh LS Scent e a a a av T ART ps A aS Ra RRR 13 4A 3 DEEP StOPS aoe eer Per aT CREME E PT SLT mv ana ee 13 4 4 4 Automatic atmosphere SWilC hin isi 2ate cesadessccsncctseccenkguderaitiveienashcaseeat cesael Sole ceeraiacnclowe 14 AAS Divecylinder F gecit sutieidsi send anncts eugeisedhaseund deny sandianveann caugattosqeleatd E TE naaa 14 5 Limitsand el SIN hah Se hee at eens aap ge a E E E TER 15 SATIS COMMITS S SUOMI ars ores instilesd descent Ato necc oar oe or E Ea rncansnesov can A E A EEA
12. increase the narcoticness of oxygen in mixture This property can be changed in the future 5 5 Amount of the breathing gas mixture The calculating the right amount of the breathing gas is one of the basic skills which we acquire in trainings In practice however we often forget this what in result may lead to a change in our previously developed plan and thus increase the risk This program allows you to easily simulate consumption of air and verify the necessary reserve configurable 16 31 6 Adive planning and dive profile Diving Planner a ew File Actions Help Home Config T Dive profile 1 Report Detaildata J M Values Validate Recalculate M Clear User dive plan Result dive plan Action Depth Depth Time Star time Duration Tenk PPO2 END F Type im fl min De hh mm ss Action Depth m ft hh mm ss preasure bor rm CNS OTU lt iBegin 0 0 1 i 46 24 Deep stop 9 00m 29 538 01 00 56 0 39 9 00 0 00 os b Diving 7 iy 45 47 24 Ascent 5 00m 16 40ft 00 24 55 0 30 5 00 0 00 OEE amp End as 0 o 1 47 48 Safety stop 5 00m 16 40 02 00 51 0 30 5 00 0 00 o s fx X 0 0 0 _ 49 48 Safety stop _5 00m 16 40f 1 00 49 nan son ono os Preassure of blend in tank is at dengerause level P 49 bar V 591 j Al ut a gt Dive Graph Depth m Runtime min Basic information Ascent rate m min 10 Bottom depth m 14 Dive time min 53m
13. there was not enough 13 31 researches to be able to confirm their reasonableness mainly because of the lack of sufficient research methods Now there are already available research results which confirms that a properly planned stops there is a significant reduction of nitrogen micro bubbles after diving We encourage you to search for new results and refer to their followed conclusions The application allows you to select one of the options below Modification was implemented into the algorithm by developers This modification causes the stops will be determined only if the saturation level of tissues reaches a minimum required value It will eliminate situations where an extra stop might bring the opposite result the additional saturation of the tissues rather than desaturation For example they may be the short dives to greater depths and rapid ascent at recommended speed to a depth below a None without deep stops Deep stops are not used b Pyle It is an implementation of the method invented by the creator of deep stops whose recommended 2 3 minutes break in the middle between the operational depth and the next mandatory stop c SSA CMAS This is a modified method adapted to dive based on the tables and algorithms of Biilhmann This method allows you to schedule short one minute stops based on absolute pressure until the first mandatory stop d NAUL Implementation of the recommendations of NAUI 2008 S am
14. they show the great flexibility in the approach to the subject e g different values of altitude to which is reduced the pressure in the cabin of the aircraft are accepted Some use a level similar to 2400 m above sea level others more conservatively to about 4000 m above sea level Some computers do not take into account the limitations of the algorithm what about it has been already mentioned and it is the reason that the part of the calculation is ignored Others apply to results only so called longest tissues or only central tissues For examples of dives the results are reported in the range of a few to several hours Thus the discrepancy of values is very large To avoid all these nuances in our application we used The method of finding the time for the next approximations as if we dive into waters at high altitude Calculate the time only on the surface It was assumed on the basis of several publications of civil flights parameters the maximum pressure up to 2400m above sea level and in an emergency 4200 m above sea level The standard to provide better security we take to reduce the pressure to the level of emergency optional ability to change Besides nitrogen We take into account the remains of the residual helium although it will not have a greater importance in most cases As you will notice the completely get rid of the remains of the residual nitrogen for the typical dives with use of air b
15. 1 9 Examples The following plans are only examples Do not treat them as ready made plans for diving Remember to always choose the parameters of the dive and plan for your individual needs and current conditions Consult your plans with your dive partner and never dive alone 9 1 Two dives in Czarny Staw in the Tatra Mountains This example reflects the typical planning of the dives in low mountains In this case choose a glacial lake situated at an altitude of 1624 m above sea level Typically these lakes are characterized by clear water and poor flora Be sure to take the warm shoes warm suit diving gloves and boots the spare diving cylinder and rescue set as well as hot tea Due to the relatively low temperature possibly in the range 8 15 C you should establish the dive time on short 40 and 30 minutes Because we have all spare equipment on site so the break between dives we set the time relatively short Both of dives we will execute to a depth of 15 meters We set the basic configuration parameters the altitude the kind of mixture and the type of diving cylinder File Actions Home M Config 17 Dive profile Report Detail data T M Values Environment Breathing set Altitude m Amaai pressure bPa ae Beginning blend Basic set Fresh Air X Single 15 200bar Altitude ft Atmosferic pressure inHg D Sea water salt SCR Brathing rate l min Auto cylinder sel gt
16. 120 030 6 00 0 00 gt A Diving iv 15 49 30 33 55 Ascent 3 00m 9 84ft 00 18 119 0 24 3 00 0 00 End o 0 1 34 14 Safety stop 3 00m 9 84ft 03 00 116 0 24 3 00 0 00 e E i x 37 14 Ascent 0 10m 0 33ft 00 18 116 0 18 0 10 0 00 37 32 Change cylinder 0 10m 0 33ft 00 00 1 018 0 10 0 00 37 32 Surface 0 00m 0 00 01 00 1 0 17 0 00 0 00 4 EERE JI naa ant fon S perp TEE A Depth m 50 55 60 65 70 75 80 85 90 95 Runtime min Basic information Ascent rate m min 10 Descent rate m min 15 Surf altitude m 9 2 Bottom depth m 15 Deepest ceiling m 0 1624 Min tolerated depth m 0 00 Fresh 2h 7m 1h25m 13m 737 Dive time min Bottom Time min Time to fly min Water Plan steps The plan looks good the program does not report any warnings They will be no decompression dives Verify and compare the results with the no decompression tables check the weather forecast and we are ready to move on In the dives like this it is important to acclimatize into the specified altitude before diving and not move into higher altitudes after dives Otherwise we risk to suffer from DCS This dive seems to be easy but due to the enormous effect of high altitude in the mountains it should be treated as technically difficult Diving in quarry Horka Saxony There is an inter
17. 16 Limits Minimum tank preassure Maximum depth m Maximum dive time min Multidive number days 20 120 1 1 4 Typical X Maximum depth ft Equiv Narcotic Depth m CNS Limit Safe limit bar Simulation settings Calculation mode Deep stops GF Lo M Value Dynamic Tienes eas 20 M Values Auto atmosfere GF Hi M Value ZHL16C Computer v Cylinder refill 20 Engine RDATdive zhl16 1 0 13074 445 Img 1164x207 1687x300 Language English English Mem 9MB License DEBUG Next enter the input data Just enter only the basic actions The Diving and The Surface Other elements are optional They are not mandatory User dive plan Action Depth Depth Time oF 5 Description Type m ft min 15 49 40 First dive 40 Break o 0 15 49 30 Second dive o 0 1 27 31 Then calculate our profile The program will automatically add the missing elements and perform simulations of our dives The results are shown in the right panel and on the graph User dive plan Result dive plan Action Depth Depth Time Tank E Type ml ft fang Deserinsian aan Action Depth mvft tice preasure pens a NSE E Begin v o o 1 pa 31 37 Deep stop 9 00m 29 53ft 01 00 122 0 36 9 00 0 00 WS Diving 7 1s 232 an feet tive 32 37 Ascent 6 00m 19 68ft 00 18 121 0 30 6 00 0 00 if Surface Xs 0 0 40 Break 32 55 Deep stop 6 00m 19 68ft 01 00
18. Diving Planner File Actions Home Config 7 Dive profile 3 Report X Detail data T M Values Environment Altitude m Altitude ft Limits Maximum depth m Maximum depth ft Simulation settings Calculation mode Dynamic M Values ZHL16C Computer Atmosferic preassure hPa 934 Atmosferic pressure inHg 2758 Water Fresh Sea water salt Breathing set Beginning blend Air v SCR Brathing rate l min 20 oo Help Basic set Si ERP v Auto cylinder sel z Minimum tank preassure Maximum dive time min Multidive number days 20 60 1 1 4 Typical v Equiv Narcotic Depth m CNS Limit 66 405 80 2 Safe limit bar Deep stops GF Lo M Value v Buhlmann SSA CMAS v 80 v Auto atmosfere GF Hi M Value X V Cylinder refill 80 Engine RDATdive zhl16 1 0 13074 445 Img 1164x153 1920x252 Language Polish Poland English Mem 10MB License None Configuration panel is divided into several sections described later in this document 4 1 Environment Section Environment allows you to set the basic parameters for the water area i e a lake where we dive 4 1 1 Altitude and atmospheric pressure Depending on the altitude height above sea level of the water area there is a different atmospheric pressure The higher height above sea level the pressure is lower It is possible to set the parameters press
19. commended 4 4 1 2 Dynamic mode Dynamic mode is for more experienced divers and simulation for training purposes and their own This mode should not take a beginner divers Dynamic mode is characterized by 12 31 high resolution of calculating steps typically 1 minute high resolution of steps during changing depth typically 0 1 m During the calculation each user command is divided into a series of small steps Calculation engine does not exceed the calculated safe depth for the next step Due to the high resolution the calculation results are averaged during the descent and ascent For this reason this plan is closer to the actual conditions and allows you to better fit the plan to your needs and gives you the ability to better follow the results at each stage of diving However it has not an additional safety margin 4 4 2 Limits tables In theory using the algorithm ZHL 16 can be made the necessary calculations assuming the proposed half time and pure mathematics The world around us is impossible however to describe the end of the rules of mathematics and physics which moreover makes it more interesting and more beautiful The first version of the algorithm ZHL 16A is supplemented by an additional two variants ZHL 16B and ZHL16C This last one is the most conservative and it is assigned to use in diving computers This option is normally set in the application Version B is generally used to generate decompres
20. d finish It means the end of our dive This action is always at the end of the plan but not between dives Use action Surface between dives 6 1 2 2 Depth This is the target operating depth in meters or feet The units can be rounding during the calculation operation The rounding values are presented on a gray background The accurate values which were typed from the keyboard are displayed on a bright background The depth value is not given for some actions 6 1 2 3 Time duration Duration of the action is in minutes The time of ascent and descent is not given This time duration is depended on the speed of depth changes The resulting plan dive profile The resulting plan is to present the results of the simulation in the compact form The detailed data of profile is available in a separate tab Both plans are refreshed only after a call action of the new calculation process Same change in the user profile does not change of the resulting plans The compact plan provides basic data about the individual parts stages of the diving including occurred warnings 6 2 1 Compact plan columns description 6 2 1 1 Start time Step time counted from the start of diving runtime 6 2 1 2 Action It is the type of action which is described in the stage of the plan All the actions described in the previous section 6 1 2 1 and described further below may occur 6 2 1 2 1 The deep stop This is the so called deep stop
21. e other hand too rapid breathing can also be a symptom of problems The data of the set breathing air consumption are included in the calculations and presented in numerical and graphical form Safety limits To improve the safety of the application supports the control limits for different values of dive profile data Some of the limits are static some calculated dynamically depending on the simulation results You can configure the basic restrictions in this section In addition as described in the following sections there are additional limits that are permanently programmed in the internal mechanisms of the application see 5 After exceeding limits of any of the calculations they are still continuing and profile items are marked with appropriate warnings 4 3 1 The maximum depth Set the maximum depth under his certificate Depending on the organization of a typical training allow recreational diving to a depth of 12 18 40 30 and 40 m respectively 40 60 100 and 120ft 4 3 2 The maximum dive time Although the dive time is not explicitly limited it is easy to see that the longer the dive the easier it is to reach the required decompression increasing the dose adopted oxygen and other gases Not without influence is also chilling the body and fatigue So it was good for you to determine the appropriate limit In our opinion the novice divers should not exceed 60 minutes for a single dive 10 31 4 3 3 CNS limit Thi
22. e previous days The application estimated daily and total limits Exceeding the limit is indicated by a corresponding alarm 7 1 16 Altitude Altitude above sea level where there is the water area Altitude affects absolute and atmospheric the pressure and may cause other results of the calculations The water areas placed above a few hundred meters should be used for diving by the experienced persons If you are not sure if you can do the dive consult your instructor or a more experienced colleague 7 1 17 Blend gas mixture Used the breathing mixture 7 1 18 Water Type of the area water fresh or salty water For area water with low salinity should be chosen value of parameter fresh water in the setup of configuration An example of the fresh water area low salinity may be the Baltic Sea Similarly for the Red Sea it should be used the salt water settings 7 1 19 Compartments count quantity of tissues In his work prof Biihlmann defined initially 8 and later next 16 tissue Because they are theoretical in order not to confuse them with real tissue so the name was changed to compartment This value shows the quantity of ranges which are summed for all included gases For example for the 16 ranges in the tables of limits so called M Values and the two gases nitrogen and helium the value displayed in this field will be the 32 Traditionally the compartments of the lower numbers represent the tissue of short ha
23. efore the end of a 24 hours is almost impossible Significant differences can be seen only when using nitrox For this reason as well as a scuba diving school we recommend that you do not get on a plane within 24 hours after the last dive regardless of the results of calculations 7 1 10 Ceiling window This is a real safe depth to which we can ascend The value is shown only for illustrative and training proposes To determine the depth of the stops it must be used appropriately the values of depths with the rows The decompression stop Deco The deep stop Deep Stop and The safety stop Safe Stop 7 1 11 V tank The actual amount of breathing gas in diving cylinder in liters at pressure reduced to 1 bar 7 1 12 P tank The actual pressure of gas in diving cylinder 7 1 13 END Calculated the current equivalent narcosis depth for the breathing mixture 23 31 7 1 14 Total CNS Expressed as a percentage at present received by diver body the rate of oxygen dose for the limits of poisoning of the central nervous system To calculate its value we used a set of linear equations defined by NOAA In fact the CNS is not linear but this level of accuracy is sufficient and widely used 7 1 15 Total OTU The total number of OTU units used to determine the possibility of a pulmonary oxygen poisoning The acceptable dose limits are dependent on the partial pressure of oxygen the time and the number of dives on th
24. ersion 4 However the installer contains the necessary elements of NET It should be noted that the security software firewalls do not block our application access to the Internet The internet network is required to run the application 10 2 The hardware requirements Our tests show that the application works in practice correctly on any popular hardware platforms On slower computers or equipped with less memory simulation can calculate longer but within an acceptable time To ensure optimum comfort we recommend that the computer on which you install the program meet the following minimum requirements processor INTEL PENTIUM or Athlon 64 memory RAM 1GB graphics adapter any with minimum resolution 1024x768 or 1280x720 16th colors network an active connection to Internet 20 GB of free space on hard drive We received excellent results of the computer performance on systems equipped with Intel Core i5 2 4GHz processor 4GB of RAM graphics card with HD installed under Windows Home 7 64 bit control 31 31
25. ervative is designed for less experienced divers It is so designed to raise maximum safety and compensated for ambiguous states The results will be similar to decompression tables The main features of this mode are get the target depth during immersed get the original depth during ascent overstepping the safe depth for the next step of the plan In the simplest terms it can be said that this mode exceed for us the depth of decompression from the previous step to the next and it takes always the maximum depth of the change to calculate which eliminates the variable speed of descent and ascent of the typical first dives and reduces the risk of problems during the and after the dive Let us imagine that you want to dive to a depth of 30 meters 100ft for about 25 minutes and next another 5 minutes to admire underwater world at a depth of 10 meters 33ft The computer will show us the one stop for decompression and also a safety stop But what if the 30m 100ft loose our concentration and we spend about three minutes longer Or let us ask the question whether if we want to put out earlier of time with a depth of 10 meters Will it be safe The answer is simple the risk of injury will definitely increase The use of three principles described above will make that the plan will calculate a small margin of safety and the risk of DCS is lower Remember however that it always will be existed M Values table type ZHL16C is re
26. esting quarry in the town Horka near Dresden in Germany In the area of the quarry there is a well equipped dive base The best to go diving with a group of friends The water is clear and transparent in the water area all over the year Visibility reaches 10m Depth of just over 30m Dives here are safe and interesting To dive all around the quarry efficient diver takes about an hour but we advise you to do a few shorter dives it allows for a quiet visit the water area without unnecessary effort and stress Horka is also ideally suited for night dives so be sure to take the underwater torches So we are planning three dives two during the day and one at night The first one is getting to the depth of 20m the second one shallower 15m and third by night to the deep 10m Between each of the dives we are planning a minimum 2 hours of the break We are inserting the basic parameters During our previous dives we measured the typical air consumption If you have not perform measurement before or for example 28 31 you re a little tired we advise you to assume values 201 m not like are shown in example 16 It is important to agree the times length of dives and other parameters with a partner You must determine them together so as not to cause danger to any of you Actions Home Config Dive profile Report ia Detail data T M Values Environme
27. g It should always be set at the beginning This step marks the start of the planning and initializes all input parameters ie the gas tissue saturation 6 1 2 1 2 Descent It causes planning of the descents to the set depth with the assumed speed of the descent 6 1 2 1 3 Diving It means the diving during a specified period of time to the set depth If the operating depth was changed from the previous step the ascent or descent will be automatically executed An interesting feature is the planned dives at depths of 0m what it will be tantamount to swimming over the surface of the water while using a breathing regulator In some cases it may be useful possibility to swim to the entry point in situation e g when the high waves appear 6 1 2 1 4 Ascent It shows the planning of the ascent to the set depth The parameters of the tissues saturation will be controlled during the ascent process They will be controlled to set the required decompression stops and optional stops of depth and optional stops of safety 6 1 2 1 5 Surface It allows to take into account the typical activities between dives in the simulation So the transition to the atmospheric air breathing we stop the consume the breathing gas from the diving cylinder and it may lead to change of the breathing gas if there was eg Nitrox in the diving cylinder and charge the diving cylinder The behavior of this action is configurable 18 31 6 2 6 1 2 1 6 The en
28. h is too low typically 0 16 at and there is a risk of increased effort and even fainting and consequently diving accident The alarm is generally occurs for so called Deep Trimix mixtures at the low diving depths 8 11 The diving cylinder is empty NoAir The mixture of breathing is over You can try to change the set of diving cylinders You can also try to further define your individual air consumption and enter it to the configuration However we warn against lowering the value of this parameter or entering it as low as possible SRC can be dangerous 8 12 The pressure of the breathing mixture has reached a dangerous level The level of the gas reserve has been reached in the diving cylinder The reserve is an important factor of the safety Remember that in the case of the diving problems the reserve should give you and your diving buddy a chance to ascent It should not be exceeded 8 13 The depth of the current dive is greater than the previous one Safety rules say that the following one after another the next dives were not deeper than the previous one The deepest dive always should be planned at the beginning as a first After diving in the body for some time there is the even higher level of nitrogen and other gases There may appear the single bubbles of nitrogen Each subsequent dive performed in that day is associated with a higher level of the risk so it is better to reduce the depth than to increase it 26 3
29. he light fields and rounded values on the gray fields The program will convert and recalculate measure units after the user enters values in your chosen unit of measurement Besides in some areas there are tool tips with additional information 3 1 Atmospheric pressure To make it easier the application provides the possibility configuring values of atmospheric pressure in hPa hecto Pascal or inHg inches of mercury at 0 C units The first is typically used in the SI and European countries the second one is imperial unit used for example in the United States After inserting the atmospheric pressure will also be converted to a typical altitude at which the pressure is 3 2 Altitude Altitude can be inserted in meters m or feets ft above sea level After inserting the value it will be converted to common prevailing atmospheric pressure which is at this altitude 3 3 Depth Just as altitude depth is also given in m or ft In addition pay attention to the method of determining of the automatic stops in the following chapters 3 4 Time Time of duration is always inserted in the minutes However the results will be presented in a user readable form it means in hours minutes and seconds 7 31 4 System configuration System configuration is possible by inserting a number of parameters on a single summary tab The parameter values are restricted as far as possible in the application to safe legal ranges amp
30. hich the diver inhales and it acts on his body 7 1 7 The first decompression stop The depth of first mandatory decompression stop at the specified moment of the dive plan In the case of the stops of the shallow depth it will be depended on the type of a the water area freshwater salty 7 1 8 No decompression time The approximate dive time calculated in minutes at the specified depth for the specified segment without the need for planning of decompression This time will be different and depending on the used breathing mixture the depth and configuration In our application we used the method of finding the longest possible time After analysis the limits of algorithm even with the high calculation precision of present computers are so large that we used the slower method with the greater demand for calculating power which gives much better and more reliable results 7 1 9 Time to fly This value is very similar to the no decompression time however it calculates the shortest time that we must not get on a plane To calculate the pressure which prevails on specified altitude we assumed logarithmic scale similarly as in other 22 31 calculations As in the previous paragraph we have used the method with the greater demand for the calculating power successive approximation In this case however we must comment on the results From our review of the available methods and results which are get from the dive computers
31. ication Configuration allows you to set a limit for the dose CNS expressed as a percentage 5 2 2 Chronic form pulmonary OTU Decrease in vital capacity which in turn can lead to serious complications 15 31 5 3 Partial pressure of oxygen PPO2 Both too low and too high partial pressure of oxygen is detrimental Oxygen partial pressure below 0 16ata can cause hypoxia of body Too high pressure between 1 2 and 1 6ata can cause of paralysis nervous system The maximum oxygen partial pressure is determined by the program based on the time of diving PPO2 limits restrict the minimum and maximum operating depth for a given mixture PPO2 also has a direct effect on the CNS and OTU ratios 5 4 Equivalent narcosis depth END The maximum limit of END is configurable It was assumed 40m as a standard The application specifies the result level based on the relative narcoticness of individual gases It is assumed that the highest level of narcoticness gas which are commonly used is nitrogen index of 1 Noble gases can be much higher than nitrogen narcotic properties but in practice they are not used Also requires comment narcoticness of oxygen Some groups mainly associated with cave diving report bad experiences with mixtures of nitrogen and oxygen and they suggest taking oxygen index the same as for nitrogen The basic version of this software assuming that we are talking about recreational dives is used to calculate an index of 0 no
32. icctssccccsetesssecccssrecesseeieuctavesduarsnastactenesaastneevanen 25 8 7 Oxygen toxicity limit is reached CNS iccssecsestasacteeestentadssebetedes can esbetectowasaboitecvasG comauntelane 25 8 8 The oxygen toxicity for the nervous system has not been counted CNS s ssessessseeseeeeseee 26 8 9 The depth limit for the oxygen has been exceeded ODL 0 cecceeccccesseeseeeeeeeeteeeseeeetsaees 26 8 10 Too low the partial pressure of oxygen OTL cccecccesceeseceseeeeeceeeeeneceeeneeeeeeneeeeseneeenes 26 8 11 The diving cylinder is empty NOAI ccccecccssseesneceteeeseeceseeeseecsseeeseeceseesseeceseeesaeenseensees 26 8 12 The pressure of the breathing mixture has reached a dangerous level eeceeeeeeeeeeeenee 26 9 Examples ecnin E tah i ll al el te al td COB RA Cl ec a as 27 9 1 Two dives in Czarny Staw in the Tatra Mountains ei eeceeeesececeeeeeeeeeeeeeecesereeeeeeeeeees 27 9 2 Diving in quary Horka Saxony sssssseseessesssossessessressessresressrestesressrestrssresseressseessseeesseressene 28 10 The required technical parameters of a computer system s ssssssessrssssssessessreeseresssreesseeesseresse 31 TOT Eheoperatine Sy Sie 11 yeaa accede pias aches e e a a atest esos 31 10 2 The hardware Te quire MeIits ysic sare avsdavt ied tunine E E aa 31 3 31 Calculation algorithms The basic package features The basic algorithm based on ZH L16 Albert A Biihlmann
33. ing is the easy to undrestand visualization and consolidation of knowledge by simulating of the example scenarios For example we need almost three clicks to compare the dive profiles for air and nitrox We give you this software in the hope that it will be a real help for training simulation and planning of real dives We also hope that in this way we will contribute to the reduction of risk while the sport of diving Deep dives 6 31 3 Measure units Before we get to set up and work with the application you need a few words about the unit of measurement that have been used The calculation engine always uses the same unit of measurement internally for the calculation Used units are meters to specify the altitude and depth technical atmosphere to pressure and minute to specify the time However the engine provides a wide unit conversion mechanisms which allow applications to be constructed in such a way that it is user friendly Knowledge of the internally used units may have an impact on some of the value rounding so you should pay attention to it From the point of view of the user application provides a much wider range of possibilities for the insertion and presentation of value In many places it is possible to insert values in one of several popular units Most of them cannot be converted to each other to complete and the total values and therefore it was assumed that the values to be used for the calculation are displayed on t
34. itrogen and helium Pure oxygen was used only for training purposes In the extended versions of program the pure oxygen will be able to provide an alternative to eg nitrox 50 for so called Hot decompression mixtures 9 31 4 3 Mixtures with lower oxygen content should be used with caution They are used for technical diving proposes Due to their nature they should be treated as an application to indicate the simulation results and never used as a primary source for planning such dives The use of mixtures of helium reduces the resultant narcosis but it can accelerate the saturation and makes longer the decompression process This version even though the same calculation engine supports it does not provide a change in the diving cylinder during the dive Apart from the obvious impact on the decompression times the choice of mix will also affect the maximum depth and dive time other gas partial pressure the system takes into account the properties of narcotic gases and potential toxic effects of oxygen The values of decompression time and the minimum time of flight will presented completely different 4 2 2 SCR surface consumption rate SCR values can be set in the range defined by most organizations as safe Remember that when you dive you should never hold your breath Saving the air very quickly can result in the accumulation of carbon dioxide in the body which at least can be troublesome symptom of severe headache On th
35. iving at first with proven training center or the dive center Remember that the risk of injury during diving without proper training is much higher Both diving without proper preparation and simply irresponsible diving can result in problems such as DCS decompression sickness that is injuries pressure oxygen poisoning or nitrogen narcosis Although the problems that can happen to us under the water there is quite a bit I must admit that thanks to the contribution of many organizations and individuals the diving is much safer than it was in the past and now it is one of the recreational sports Although there is several programs on the market that helps to plan the dives we decided to invest the time to create something new The following goals have been placed on the way of development of this software I The package should be the supplement of your existing knowledge and skills It has to be your assistant during planning diving It has to be an effective helper so it must be easy to use and friendly use and also at the same time not limiting the ability II Another very important goal was a good balance between the mathematical model used for calculations and safety rules Therefore the software has been woven into a number of additional mechanisms which increase the safety margin In the next version it will be expanded and improved II The third goal is to enable easy implementation of simulation what makes the process of train
36. ledge acquired during the training Greater values can be used only by experienced technical divers END is calculated for each of the selected breathing mixture If you exceed the limit a warning is triggered 4 3 5 Multidiving repetitive dives If you repeatedly dive a few days day after day you should insert the number of these days including the current one This allows you to better estimate the allowable limits of oxygen units This parameter is important primarily for the calculation of the risk of poisoning with oxygen in the form of pulmonary OTU 4 3 6 Minimum pressure in diving cylinder reserve It specifies the adopted reserve of the breathing mixture in the diving cylinder For standard recreational diving it takes a 1 4 capacity 50 bar for 200 bar cylinders You can also choose a larger reserve of 1 3 which typically takes at cave dives the possibility to return using one set with partner 11 31 4 4 Simulation settings The program can use several settings that must be set according to our experience and risk of diving in a specific water area at a specific time of year and weather conditions More experienced divers can use individual settings less experienced suggest leaving the default settings the more conservatives 4 4 1 Computer operation mode There are two modes of calculation engine operations planner a Conservative b Dynamic 4 4 1 1 Conservative mode The first mode cons
37. lf times of the saturation and the higher numbers with the longer half times In our applications the built in tables may contain additional short time ranges which are appended at the end The values of each range can be viewed in the M Values variant tab 7 1 20 Messages The column contains a descriptive messages of warnings and alarms The occurrence of any message except user comments means the increased risk of diving or lack of possibility its execution A good plan should not contain even a single warning and alarm 24 31 Warning and alarms During the calculations process for each of the segment are checked the parameters of profile and they are detected dangers and alarms They are presented in a tabular view of the resulting profile in the form of messages and icons in each column Occurrence at least one warning or alarm message means that the diving is dangerous and you cannot do it Below there are description of the typical situations that are detected during calculation of the profile and they are presented as a clear message 8 1 Step of plan reported an exception some limits can be exceeded Default It is detected an alarm or warning The application has not found a better description It should be considered that this dive cannot be done and in case of doubt please verify the results by yourself eg tables or consult with a more experienced colleague If you suspect that the problem does not appl
38. lies generally very complex and long dives Profile for such dives should be carefully verified 8 6 The daily limit of oxygen toxicity OTUD Similarly as in the previous paragraph however concerns the daily limit The alarm can occur when dives were executed continuously a day after day 8 7 Oxygen toxicity limit is reached CNS The dose limit of the oxygen poisoning of the nervous system has been exceeded Under no circumstances you should attempt to execute such a dive In some cases you can try 25 31 to change the breathing mixture to Trimix 8 8 The oxygen toxicity for the nervous system has not been counted CNS Current parameters do not allow for the calculation of oxygen toxicity Probably it has been exceeded some others limits such as the partial pressure of oxygen Under no circumstances you should attempt to execute such a dive 8 9 The depth limit for the oxygen has been exceeded ODL You can not dive using this breathing mixture at this depth because it has been exceeded acceptable partial pressure of the oxygen The acceptable pressure is selected dynamically depending on the diving time according to the NOAA between 1 2 and 1 6 bar The alarm occurs often after exceeding the acceptable depth and for so called Hot mixtures which are used to reduce the decompression time 8 10 Too low the partial pressure of oxygen OTL For the selected mixture the partial pressure of oxygen at a selected dept
39. m The value is presented at the end of the step 6 2 1 8 OTU The total quantity of the assumed units of oxygen toxicity The necessary value to determine the possibility of chronic poisoning with oxygen 6 2 1 9 Cylinder Description of the diving cylinder used in the stage including the type and pressure value of the mixture 6 2 1 10 Comment Remarks There are additional descriptions including the content of the warnings and threats in this column 6 3 A graphical view of diving profile The resulting dive profile is presented in the lower panel in a simple graphical form Visualization allows you to quickly get to know the result Below there is the sample chart of profile together with the description of each items 20 31 Dive Graph 25 30 Runtime min 6 4 Summary In the lower part there is a panel with a summary of the profile Here are general but useful information such as total time of the plan or the deepest decompression stop 7 Profile data details Dive profile details can be found on separate tab Information is calculated and stored in the memory with accuracy of one minute or with more accuracy for the dynamic mode or with the accuracy of the stage for the conservative mode In this way you can check the expected parameters in any moment of our dive plan
40. me Depth and altitude m meters ft feets Atmospheric pressure hPa inHg inf atm mmHg Absolute pressure at bar 4 31 1 IMPORTANT Before using the software please refer to this documentation Pay particular attention to the elements that describe the potential risks and suggestions how to improve safety and reduce described limitations Below and in the license contains important information related to this Software If you do not agree please discontinue use of this application 1 1 Purpose The application has been developed to assist in the planning and in the process of diving training The application does not replace the decompression tables or training It is addition to knowledge and skills additional facilitation The application cannot be used as the only source or primary source of information and knowledge We recommend you to review the plans with alternative sources such as diving computers In case of conflict or different results at the first of all your knowledge and skills gained during the training should always be the most important and overriding 1 2 Diving safety Many of mechanisms are put in the computational engine which minimize the risk of injury and increase the safety of the dive Note however that no security and algorithms do not guarantee that the DCS or other problems do not occur The risk is strongly associated with individual predispositions your health fitness well being a
41. min Descent rate m min 15 Deepest ceiling m 3 Bottom Time min Surf altitude m 0 Min tolerated depth m 0 44 Time to fly min Water Fresh Plan steps Engine RDATdive zhl16 1 0 13074 445 Img 1255x300 1255x300 Language English English Mem 19MB License DEBUG 29 31 Unfortunately because of the depth the first dive is too long It is not enough air to us Such dives cannot be done So we must decrease the time of the first dive and increase little bit the time of the second dive Let s check again wT File Actions Help Home 1 Config 17 Dive profile Report Detail data F M Values Validate Recalculate Clear User dive plan Result dive plan Action Depth Depth Time ae Star ti i Tank ei 2 Description tar time Duration PPO2 END m ft min hh mm ss Action Depth m ft hh mm ss ieee bar mj wal Begin 0 00m 0 00ft 00 00 1 0 21 0 00 0 007 00 00 Change cylinder 0 00m 0 00ft 00 00 1 0 21 0 00 0 00 E 00 00 Surface 0 00m 0 00ft 01 00 1 0 21 0 00 0 00 00 00 Change cylinder 0 00m 0 00ft 00 00 200 021 000 0 00 __00 00 Descent 20 00nv 65 62ft 01 20 197 0 62 20 00 0 05 01 20 Diving 20 00m 65 62ft 40 00 71 062 2000 5 85 41 20 Ascent 12 10m 39 70ft 00 48 69 046 1210 5 93 42 08 Deep stop 12 00m 39 37ft 01 00 67 046 1200
42. n lakes and others water areas of inland or seas select the type of water Depending on the salt content the water has a different density which affects the conditions prevailing at the depth of the absolute pressure There are two predefined settings a Freshwater Fresh for freshwater areas and low salinity seas not too much salt low level brackish b Salt water for water areas are heavily and medium saline slat level is medium and higher Depending on the chosen options you will see little differences in the results of the calculations Most area waters are salty seas and oceans so it is assumed that the waves may be higher For fresh water areas the safety depth stop and the last decompression stop was set at 5 m for freshwater areas 3 m For imperial units these values were set at respectively on 15ft and 12ft An example of an salty water area is Red Sea In the case of lakes water areas in quarries or the Baltic Sea but rather to choose fresh water 4 2 Breathing set The application allows you to select one of the predefined sets of typical diving cylinder This version of the application does not allow to use some several sets swapped during the dive This functionality will be available in the extended version 4 2 1 Breathing mixture The application provides a drop down list contains several common breathing mixtures from air by Nitrox from 30 to 50 and some popular Trimix mixtures based on oxygen n
43. nt Breathing set Altitude m f Atmosferic preassure hPa Waer Beginning blend Basic set OS S Ores Air Single 151200bar Atitude M Atmosferic pressure inHg Sea water salt SCR Brathing rate Vmin _ Auto cylinder sel R GS Limits Minimum tank preassure Maximum depth m Maximum dive time min Multidive number days 20 ok 1 1 4 Typical X Maximum depth ft Equiv Narcotic Depth m CNS Limit Safe limit bar a 405 805 sS Simulation settings Calculation mode Deep stops GF Lo M Value Dynamic v Gradient Factor X 20 4 M Values v Auto atmosfere GF Hi M Value ZHL16C Computer v WV Cylinder refill 805 Then we plan our dive We introduce three dives at intervals of 2 hours We recommend to do not more than 3 dives a day In fact the interval may be longer especially before a night dive File Actions Home Config T7 Dive profile Report Detaildata M Values i f Validate Recalculate I Clear Duration hh mm ss Depth m f 20 00m 65 62ft 20 00m 65 62ft 20 00m 65 62ft 12 10m 39 70ft 50 eo 70 80 90 100 110 120 130 140 150 160 170 180 190 200 210 220 230 240 250 260 270 280 290 300 310 320 330 340 350 360 370 380 390 400 Runtime min Ascent rate m min 10 Bottom depth m 20 Dive time
44. p P p 2 16 one 3 minute deep stop e GF The method is based on the so called the gradient factor described by Eric C Baker It involves the use of variable factor of safety margin during ascent which gives additional stops This results in precise control of tissue saturation The application uses GF algorithm parallel to the basic algorithm Additional stops are marked as deep GF factor is determined in the range from the deepest possible decompression stop to the safety stop depth 4 4 4 Automatic atmosphere switching The activating this option will automatically switch the calculation engine to breathe atmospheric air after reaching the surface This is especially useful for planning multiple dives Note the computer does not switch if the input data of the action we will set the depth dive at a depth of 0m instead surface This is a deliberate action which allows you to plan the return to the entry place on the surface or little bit below it 4 4 5 Dive cylinder filling 14 31 Like the previous option this feature works on the surface It causes the automatic refilling of the diving cylinder Select the option if you plan to dive a few times and you are supported by the diving center that can fill your set of diving cylinders If you plan to do two dives using only one diving cylinder this option should be disabled Limits and safety One of the main purposes of which was put in the creation of this sof
45. s is the limit of an acceptable oxygen dose from the perspective of the potential impact on our nervous system This is a very important parameter which can result in exceeding the acute form of poisoning with oxygen In typical recreational diving should not be however never exceeded Configuration of application allows you to set a limit for the adopted dose CNS expressed as a percentage Accepted standard level of 80 despite the fact that doses below 100 are not dangerous This level was set in accordance with the principle of continuous belay Just like do not dive alone but always with a partner you should also assume that nothing will happen or that if you have a diver is in trouble this materialize only one risk It was assumed that an accident can happen which will require the application of pure oxygen on the surface This means that the oxygen partial pressure is given close to at not 0 21 as a result the CNS will be further increasing although a dive will be finished For example this means that in extreme cases the symptoms of DCS reach acute oxygen toxicity and significant increase in the risk of injury A value above 80 can be used for training and simulation 4 3 4 END equivalent narcosis depth Screen showing the configuration in which we can insert a safe limit the depth to which the nitrogen toxicity is not dangerous For recreational diving it is assumed 40m This parameter should be set according to the know
46. sion tables Dive Assistant package allows you to select the option by selecting the so called limit tables M Values In the basic version you can choose one of four built in tables a ZHL 16A Original The first published version algorithm based on 16 half time intervals This option is the least safe and should be used only by the experienced and conscious divers This option is the successor algorithm ZHL 8 which in various forms is used to this day in the dive computer b ZHL 16A Theoretical Original limit table extended by 17 nitrogen compartment of 5 minutes half time c ZHL 16B Tables ZHL 16B variant supplemented by an additional interval of nitrogen The variant has been developed primarily to generate decompression tables It can be used successfully also for experienced divers during planning dives d ZHL 16C Computer ZHL 16C variant supplemented by an additional interval of nitrogen It is the most conservative set limits and therefore it is preferred This option is often used in modern dive computers 4 4 3 Deep stops The first publication of the so called deep stops belongs to Richard Pyle who is now considered the father of deep stops Using deep stops reducing the so called sub clinical symptoms of decompression sickness felt as fatigue headache and malaise The essence of additional stops is to increase the margin to the limit value of the supersaturation of tissues with gas Until recently
47. tail data In addition potential threats are checked and the values of the limits Warnings are collected for each segment calculations and available in tabular view Available warning alarms are arranged in a separate chapter 17 31 6 1 The user s plan The panel is used to enter the assumed data dives by the user Simple information is required to enter the type of action the time in minutes the depth in meters or feets and an optional comment For most dives it is enough to fill out only one line specifying the action Diving introducing depth and time Then pressing the button Recalculate we start the simulation and after a while we ve got ready the diving profile 6 1 1 The choice of the rounding way Because the application allows you to enter the depth of the metric or imperial system it is important to select for which values are to be compensated the depths of the automatic stops This is done by clicking on the column header m or ft The values in this column will be bold This setting has no effect on the values entered by the user in the table but only at a depths determined by the program automatically 6 1 2 Description of plan columns 6 1 2 1 Action type Specifies the type of action we want to perform Depending on the entered type the program will execute the appropriate planning steps of simulation Depending on your choice the edition of some fields of the plan may be limited 6 1 2 1 1 Beginnin
48. tmospheric conditions on the surface of the water and the water environment It is good to see and check the results and indications by comparing them with other sources such as decompression tables or to another computer Absolutely follow and use rules you learned on dive courses Never exceed the limits which you are allowed reach based on the certificates and permissions you possess 1 3 Limited warranty We put lot of work that this software was free from error but we do not give a full guarantee on them We give you the software to use AS IS We guarantee that each bug report or suggestions to improve will be taken seriously and thoroughly investigated All found errors will be removed as soon as possible and collected in the form of a software update Detailed information about the service and limited warranty there are in the License Agreement 5 31 2 Afew words of introduction Each of us has a hobby Besides the horse ridding my hobby is diving It has started with a trip to Egypt and Intro to one of the most beautiful coral reefs in the world Then came the time for the course diving and the first independent dive In this way has begun a lot of people Just like any sport as well diving requires adherence to safety rules It is required to be trained and first of all the prudence A large part of the theoretical knowledge and practical skills provide us the training systems It is very important to start our adventure with d
49. tware was to increase the level of diving safety Therefore the planning application has been equipped with a number of mechanisms which control the admissible limits Besides the obvious limits resulting from the certificate level of training and experience which we must always follow the application lets you control additional indicators that require more complicated calculations 5 1 Decompression Remember that the diving organizations recommends no decompression diving to recreational grade divers So please try to use this software to plan just such dives Decompression parameters are controlled in software by the following mechanisms ZH L16 algorithm in various forms and operation modes the main mechanism Safety stops Deep stops The results are affected by such factors as Depth and dive time Speed of descent and ascent Atmospheric pressure The type of water in the water area The type of breathing mixture 5 2 Oxygen related limits For recreational diving using air as the breathing mixture very rarely if ever occurs oxygen poisoning During long or deep dives ability to estimate the toxicity of oxygen however has been very important Currently the program includes support for two types of oxygen poisoning 5 2 1 Acute form of central nervous system CNS It attacks the central nervous system it is a form of acute oxygen poisoning The effects of such poisoning is very serious Appl
50. ure and altitude but both of them are closely related In general diving take place in water areas that are located low and it is taken the altitude level of the sea zero meters 0m for it It may happen however that diving we will want to perform at a higher altitude The atmospheric pressure will reduce than and it will affects two factors absolute pressure during the dive the impact rather not too much atmospheric pressure after the end of the dive Both of these factors affect a safe depth during deep diving decompression Lower pressure at the end of the dive should also be taken into account It may turn out that 8 31 even though the pressure difference is not large in comparison with the level of the sea it s enough to have begun to precipitate individual bubbles of nitrogen and consequently lead to a whole range of symptoms of DCS Diving at altitudes above 300m 1000ft should be carried out only with relevant experience or the assistance of an instructor or colleague with the appropriate qualifications Some people already at an altitude of 2500m 8200ft may experience the first symptoms of hypoxia The program allows you to set the height above sea level in two ways a set the altitude b an indication of atmospheric pressure Possible setting range is 0 to 3000m 9800ft The typical atmospheric pressure is the amount calculated by non linear scale 4 1 2 Type of water Depending on whether we dive i
51. y to the profile but it is rather the error of application please contact technical support 8 2 Maximum depth is exceeded MaxDepth The depth of the dive exceeds the entered limit in the configuration tab Probably your current diving certificate does not allow the execution of such a dive 8 3 The maximum dive time is exceeded MaxTime The dive time entered in the configuration is shorter than the current total time in the resulting profile You can try to change the limit in the configuration but remember that it should be matched to your ability 8 4 Limit of equivalent narcotic depth is reached END The current equivalent narcosis depth exceeded the acceptable limit The execution of such dives may result in loss of control and consequently may result in serious consequences If you have not yet exceeded the maximum depth of the dive try to change the breathing mixture to another eg air on Nitrox 36 and calculate the profile again Note remember that there may be other limitations associated with an increased oxygen content in the mixture 8 5 The limit of the oxygen toxicity has been exceeded OTU The total received dose of oxygen for a pulmonary toxicity has been exceeded You can try to change the breathing mixture to another for example Nitrox 36 or Trimix But the replacement from the air to Nitrox probably will extend the decompression stops so diving in that case will be impossible Note that this limit app
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