Divesoft Freedom User Manual
Contents
1. and then select Accept for the change 4 3 3 Dive menu Bailout mode OC Bailout mode 0C l Measured mode CCR It is assumed that the diver will not breathe from the Setpoint gt Diluent rebreather s breathing loop but will rather use a separate open circuit bailout apparatus a plan etup gt 34 9 0 70 10 47 After switching to the bailout OC mode the default OC mixture will be used and the safety level will be 27 automatically set using the bailout gradient factors The BOGF tag appears on the detailed and synoptic screen It is possible to switch between the standard and bailout GF sets in the menu without affecting the mode in which the Freedom is operating Measured mode CCR Use for switching to rebreather dive mode with the measured pOz See next chapter Setpoint Use to switch the low high setpoint and the manual setting of the setpoint of the CCR See the Setpoint chapter on previous page Mix Use for gas mixture switching for SCR This is similar to the OC mixture selection Diluent Use this menu item for the diluent gas switch Setup Diluents This the CCR only menu item corresponds to the mixture setup in Setup gt SCR CCR Setup gt Const CCR setup gt Diluents Setup Mixture setup This the SCR only menu item corresponds to the OC mixture setup in Setup gt Mixtures Mixture setup 4 3 4 Stack time The scrubber stack timer runs all the time2. based on the maximum ascent or descent rate See Setup gt Preferences gt User interface Vertical speed Battery symbol A graphical indication of the remaining battery capacity See chapter Surface mode Battery symbol page 15 21 4 2 3 Synoptic screen 116 36 Ag The depth value is easy to read It is accompanied by other important information z E The meaning of all values is identical to the detailed 6 E 0 0 screen 18 52 4 2 4 Big Screen The most important information is written in really big characters This screen is useful in very bad visibility Many divers can read numbers even without a mask The meaning of all values is identical to the detailed screen 22 4 2 5 Dive profile screen Start The time of submersion is useful for checking compliance with the schedule Avg The average depth is indicated with the yellow 77 01116 52 horizontal line and with the average depth displayed in yellow A new start point for depth averaging can be created in dive menu select Settings gt Reset average This point is indicated by the yellow vertical line and the horizontal average depth line starts from there Current depth 77 0 116 52 See lower left corner Dive time Runtime of current dive is placed in lower right corner Max Maximum depth reached during the dive Field with this value is placed in the middle of bottom line 23 4 2 6 During a div
3. be assumed Diving with air or one nitrox mixture Confirm the following settings e The default OC mix is set to air or nitrox whichever one you plan to use Setup Mixtures e All other gas mixtures are disabled no checkbox checked on the list Setup Mixtures Mixture setup Warning if the ascent gas is set to Optimal Setup gt Decompression and multiple gas mixtures are active then the decompression plan expects their use This may lead to indication of shorter time to surface TTS and shorter decompression stops Improper settings like this can t affect the safety of the decompression if you strictly follow the computer it only affects the calculation of the plan This is not applicable to the Basic nitrox version of the Freedom Multi day repetitive dives It is advised to use a slightly more conservative setting for diving holidays Do not disable or omit the safety stop Use nitrox if available and if you are qualified Remember that the diving computer does not know diver s physical shape Maintain a high level of hydration during diving holidays Do not dive drunken or hungover Do not dive ill Long decompression safety Preferably control the decompression safety with the GF high setting and disable the Safety stop if the decompression obligation is longer than 20 minutes A smaller value of the GF high setting can be used additionally for increasing safety on the shallow end of decompression if r
4. 25 4 3 Fixed setpoint CCR ccceccseeeeeeeeees 26 4 3 1 Predive and submersion 26 Boies DEPON isei oai 27 4 3 3 DIVES MenU s sssssssssessssrrrrrressrrrrrrrsssrnrrrrerns 27 AA MACK UMC anaa e a Rea 28 4 4 Measured CCR cccccccsscceseeeeeeeeraes 29 4 4 1 O2 sensors CONNECTION 0cccceeeesseeeeeeeeeeeees 29 4 4 2 O2 sensors calibration ccccccccesseseeeeeeeeees 29 4 4 3 PO2 FOAING cceeeesececseessseeeeeeeeeaeseeeeeeeneas 30 7 Flo en CI 0 0 eee 31 4 5 1 Detailed screen cccccseseeeeeeeeesseeeeeeeeeeas 31 4 5 2 Dive profile screen ccceeeeceeeeesssseeeeeeeeeeas 32 4 5 3 Dive MCAU wisseisensctcnsuaysnmntconanentenperewntbesoxseant 33 AO go aeereree retreat ere er erer rer ere errr 34 4 6 1 Surface screen sss ssesssrrrrreesrrrrrrressrrrrreesse 34 4 6 2 DIVE SCreen oo cecececcecccececcecascecaececaeeeeaeaueass 35 4 7 Advised strategies eeen 36 4 7 1 Diving in darkness esssssesesssrrreerrrrrrrree 36 4 7 2 Decompression ssessssrrseesrrrrrrresrrrrrrreese 36 Section 5 Setup ssssssssnnnnnnnnnnnnnnnn 39 SL EO gale Le 39 52 DECOMPrESSION ssisercnevercverteertcenenennys 40 5 2 1 Gradient factOr ccccccccccsssssssseeesessseseeseees 40 5 2 2 Safety Stop LON keunna 41 5 2 3 Ascent gas Optimal eseese 41 gaad DECO GLOS roarinininioian ennenen Erini 42 549 Deep SOPS cerien eee eee ee 43 5 2 6 Ascent rate ssssssssssssrssssrrrresrrrresrrrresrrrre
5. be selected Auto orientation selects the left or right hand position automatically during the start It will not switch the display orientation when the diver changes position i e during a head down descent Brightness The display backlight brightness level can be set from 1 to 9 The change of brightness is immediately Increase 1 Decrease 1 reflected during a setting so preferably change this Set as default 6 setting in the shade or in the dark For diving with eyes accommodated to darkness use the lowest brightness setting level 1 Use high brightness level 5 to 9 for diving with a high level of ambient light Also see advised strategies for Diving in darkness page 36 53 Screensaver 0 s The display will be switched off after the screensaver timeout expires Zero disables this feature i e display is all the time on Show by light On The display can be activated switched on with a light beam The light sensor is on the side of the display MA mi adjacent to the buttons so the light beam has to come le 68 4 48 His 12 13 from the side opposite the buttons Move the Freedom to the light beam instead of moving the beam to prevent confusion with a light signal Screens Any dive mode screen can be disabled 54 Custom fields The decompression floor or the average depth can be set for the detailed OC screen 6 0 1 iter 1 6 9 52 Ag ae 18 57 14 c 1 0 The te
6. dive functionality is equivalent to the dive simulation in the dive planner See also chapter Dive planner page 61 9 2 4 Syslog The system events log list All information is read only 65 9 2 5 Miscellaneous Warning These functions can alter values of internal variables or and the state of the Divesoft Freedom Use them with caution and only if you understand the consequences Force Dive Start It can be used for an extraordinary shallow dive in a place where initial submersion to a depth greater than 1 5 m is impossible This also can be used if the automatic dive start failed for any reason e g submersion recognition algorithm is confused by previous pressure changes unrelated to diving Force Dive End If the surface pressure zero depth was incorrectly detected and the computer dives while on the surface then the dive can be forced to stop with this function Browse config Every setting can be read and changed The majority of settings can also be changed using a ordinary setup the equivalent minimum and maximum limits for every setting will be applied There are only few internal configuration parameters intended for special use Reset deco data The residual inert gas saturation from previous dive s will be removed Only use this function to give the computer to another diver whose surface interval is sufficient for a complete desaturation Bootloader Restart to the bootloader mode for the fir
7. for the plan based on your previous experience e Use a very low value of the GF low 0 is not uncommon e Usea high value of the GF high 1 is not uncommon and even gt 1 is not uncommon requires the special personally granted license e Use optimal gas mixtures e Stay in the water for minimum 15 minutes after surfacing e Avoid post dive exercise take advantage of the support team e Maintain thermal comfort during a dive avoid a hot shower after the dive e Avoid diving or any other pressure change in the following 48 h The Divesoft Freedom is not intended for long bottom time extreme deep diving in any mode other than the gauge mode The Full trimix or the CCR version of the Divesoft Freedom is required for trimix decompression calculation 38 section 5 Setup The Divesoft Freedom is configured in the surface mode Activate the surface mode main menu with a short press PERRI Switch off of both keys and select Setup Log book Setup gt Some values can be set during a dive however this Plan gt System check possibility is reserved for resolving exceptional and Games gt USB connection emergency situations The particular set values depend primarily on the user s experience physiology and personal preferences The fact that Divesoft Freedom enables setting a certain value does not mean that this kind of setting is safe and suitable for you and for your planned dive If you are not sure which valu
8. limit Range is 0 40 0 means that the alarm is disabled If set to a value greater than 10 then a second alarm on 10 occurs 5 4 3 Notifications No deco end On The end of the dive in zero time in the terminology of the BuhImann decompression model i e notification No deco end l l l Deco stop end that there will be a decompression obligation Gas switch reminder Gas switch done Depth Time Deco stop end On The end of the decompression stop in the stops regimen You can ascend to the next stop or to the Surface as indicated on the display Gas switch reminder Off A recommendation to switch to a different mix Gas switch done On The change of mixture in OC mode or diluent in CCR mode has been executed This notification prevents accidental gas mix switch using a shortcut if any key Is pressed unintentionally Depth A notification that the set depth during a descent has been reached It is possible to set three separate depths in the range of 0O 300 m where 0 means deactivation of the notification Time A notification that the dive time has been reached It is possible to set three separate times in the range of O 999 min where 0 means deactivation of the notification 47 5 5 CCR SCR Setup Rebreather settings are available in the Closed Circuit version of the Divesoft Freedom only There are four types of rebreather supported Measured pOz2 The measur
9. nitrogen up to 100 of oxygen Full Trimix 9 mixtures any content of oxygen helium and nitrogen Closed Circuit 9 mixtures for OC additional 8 diluents in CCR setup Each mixture can be set as active marked checkbox or inactive clear box It can be done in the editing screen or by a shortcut long press of the upper key in the list nee be ei y of mixtures Only active mixtures can be selected Kak PO 3 The default mixture is always active In an emergency a mixture can be marked as active during a dive Furthermore a new mixture can be defined during a dive These features are reserved for emergency situations 5 3 2 Def OC mix A default mixture for an open circuit apparatus A different default mixture can only be selected from mixtures that are marked as active 5 3 3 Min pO 2 0 18 bar The low pQz alarm is activated if the current pOz is less than the set value range 0 18 0 40 bar The setting of minimum partial pressure of oxygen plays a role in gas switching calculations 5 3 4 Max pO2 1 60 bar The high pOQz alarm is activated if current pO2 is bigger OC mix 7 than set value range 0 8 1 6 bar The setting of maximum partial pressure of oxygen plays role in gas switching calculations 45 5 4 Alarms There are two kinds of messages alarms and notifications Alarm messages appears on red background notifications on a blue background 5 4 1 Global alarms On Th
10. the connector is protected by a lid then unscrew the connector lid before attaching the cable The computer may or may not be switched on during a charging If the computer is switched on then the icon in top right corner on the surface screen indicates the state of charge fl Charging in progress Battery is full but plugged to charger It takes about 5 hours to charge from near empty state to fully charge Maximum charging current is less than 500 mA so there is no difference if charging using the charger or an ordinary computer USB port Charge the battery at least once every six months 2 2 Wrist mount If you prefer a strap pass the strap under the bars Use the Velcro on the strap to tighten If you prefer a bungee then remove the screws holding the bars using a Torx screwdriver T 20 size Don t use any other tool screw heads are easy to damage If you want to use a silicon protective sleeve install it before installing the bungee A subsequent installation is not possible Pass the bungee through the threaded holes and secure by a knot There is a special thread inside the holes which does not damage the bungee Use a small flame to melt the braid of the bungee and make a tip on the end of it for easier pass through Both the strap and bungee are included In any case it must remain freely accessible opening on the back of the computer When you mount the computer directly on a bare hand avoid c
11. 0 to 10 ft The safety stop is indicated if the maximum depth of a dive was greater than 10 m 30 ft Countdown of the safety stop is interrupted at depths greater than 6 m Descent to depths greater than 10 m resets the time of the safety stop back to 3 min A violation of the 3 m ceiling is logged silently Ascent above 1 8 m generates an alarm and leads to the end of the safety stop regimen for a current dive 17 The safety stop can be switched off See Setup gt Decompression gt Safety stop On page 41 DeepStop The depth of the upcoming deep stop is based on Richard Pyle s algorithm A timer countdown starts here 599 0 08 after arriving to the displayed deep stop depth 6 13 24 17 Violation of the deep stop is logged but no alarm is generated because deep stops are considered as an 2 00 additional safety factor only 59 9 9 0 12 1 4 These Pyle deep stops are shown only if switched on See Setup gt Decompression gt Pyle Deep stops Off page 43 Local Time The local time is shown on the display directly above the mixture indication Mixture The center of the display indicates the current gas mixture Warning If the breathing mixture is not identical to the indicated mixture then the calculated decompression profile will be wrong and may be dangerous to follow In that case you must use a backup method of the decompression profile calculation Max This shows the maximum depth reac
12. 46 ft At this altitude compartments containing the oxygen masks will be opened automatically and the oxygen masks will drop down in front of the aircraft passengers Max altitude The maximum allowed altitude calculation is based on the ZHL decompression algorithm with an additional safety margin GF 0 80 14 Battery symbol A graphical indication of remaining battery capacity The estimated capacity of full battery is about 10 hours The battery is full More than half capacity Less than half but more than quarter capacity Less than quarter capacity Charging is in progress The battery is full but plugged to a charger For detailed information see the battery screen in the system check 4 1 3 Switching to other modes In the menu gt Dive the user can switch from surface mode to open circuit rebreather gauge and freediving Default OC Open Circuit modes Measured CCR Fixed CCR The Freedom computer can also be switched to the Hipa auge service menu See chapter Service functions page 64 Calibration 02 Stack time reset 15 4 2 Open Circuit The open circuit mode is indicated by the blue table gridlines 4 2 1 Entering open circuit mode Open circuit mode can be entered from the menu in surface mode by automatic activation after submersion if set as the default mode or as a bailout from CCR mode the Close Circuit version only 4 2 2 Detailed screen The primary screen displays all
13. DIVESOFT Freedom USER MANUAL Depth time 493 34 03 Ceiling m Ascent 35 0 s 74 T Max CNS Floor Temp 4 A 54 9 0 0 12 C TE DIVESOFT Freedom Published by Divesoft s r o www divesoft cz Tomas Sladek Date of issue 16 June 2015 HW rev 3 0 FW 1 11 Introduction Use of this manual This user manual ts part of the Divesoft Freedom documentation The Divesoft Freedom is intended for use exclusively by a trained person who Is capable of fully understanding the instructions contained in this manual The technical documentation is subjected to a process of continual development and improvement Therefore please regularly check the website at www divesoft cz for updates This manual provides operating instructions for the hardware and software firmware version of the Divesoft Freedom written on the tittle page Safety Warning This computer calculates a decompression profile using a mathematical model It does not know your specific physiological decompression requirements There is always a risk of decompression sickness DCS for any dive profile even if you follow the dive plan prescribed by dive computer No procedure dive computer or dive table will prevent the possibility of DCS or oxygen toxicity Warning Use backup instruments Ensure that you have access to backup instruments to measure depth and time Ensure that you have access to a backup method of decompression pro
14. Press lower key cycle downward through the menu Press both keys exit the menu without performing any action Long press upper key page up 10 Long press lower key page down Long press both keys return to main screen Coded key press enter service functions menu Tilt away from yourself increase of the entered digit by one or check flag Tilt toward yourself decrease of the entered digit by one or uncheck flag Tilt to the left move the cursor to the left Tilt to the right move the cursor to the right Wherever possible menu editing screen helpful symbols relating to the keys are displayed A symbol can be either next to a key indicating the action executed during a Short key press or between the keys indicating the action executed during a short press of both keys The symbol next to a key means move down one row in the menu Moving in the menu Is cyclical so the first row appears again after the last row The move up function Is not available The symbol means return one level without executing any action The vw symbol represents confirmation of the action or selection 3 1 2 Meanings of inputs in dive modes The meanings of inputs are the same as in surface modes Other possibilities are Long press upper key gas switch shortcut previous mixture Long press lower key gas switch shortcut next mixture Tilting is expanded with movement in games otherwise entry of digits for w
15. See Setup Decompression gt Deco stops page 42 16 TTS The time to surface TTS includes the complete decompression profile If optimal gas is selected in the decompression settings then the TTS considers changing of gases from the list of active mixtures the gas switch time Is included If the current gas setting is selected in the decompression settings then only the actual gas is used for a TTS calculation Ceiling The ceiling value is shown only if the ceiling decompression regimen Is set See Setup 34 9 0 3 1 Decompression Deco stops page 42 og 17 39 3 The depth of the decompression ceiling decreases continuously up to the surface The reading is not artificially stopped anywhere during the ascent Always 14 s13 0 9 stay below the depth of the ceiling even if the ceiling depth is very shallow Ascent above the ceiling generates a warning Further violation more than 1 m 3 ft leads to an additional alarm Both alarms are logged The Freedom will continue in open circuit dive mode It will not switch to a gauge mode or even an SOS mode Diver should make responsible decision in order to minimize the probability of severe consequences No deco You can stay for the indicated time at the current depth breathing the current mixture to avoid a decompression obligation SafetySt Length of the safety stop is 3 min The safety stop can be carried out within depth from 6 to 3 m 2
16. Terminal Molex 08 55 102 Cable 6x0 25 23 AWG PUR jacket diameter 6 1 0 05 mm Ultra flexible core VDE 0295 class 6 white GND yellow brown GND pink green GND gray Imprint Divesoft Freedom User Manual Author Tom Sl dek Publisher Divesoft s r o www divesoft cz Issue Version 2 02 16 June 2015 Use of this manual approved by Lucie mejkalov CEO 71
17. Ventilatory coef O2 20 The ventilatory coefficient for oxygen is a constant that represents the fact that the harder one works the faster one breathes respiratory minute volume metabolic consumption of oxygen VOz Fit people have a lower respiratory rate for equivalent amounts of work than unfit people so the lower value represents a physically fit individual range 14 28 50 5 5 4 Common settings Stack time O min Set the scrubber lifetime The stack time warning will be generated after this time expires Zero disables this feature Number of sensors 0 Enter the number of Oz chemical sensors connected to the Freedom using a cable One two or three sensors can be connected The cable equipped with the Molex connectors is included in the Closed Circuit version of the Divesoft Freedom distribution package or can be ordered separately Faulty sensors You can mark any connected but untrusted sensor as disabled By doing so you will remove the these sensors from the calculation of the average pOz 51 5 6 Freediving Setup 5 6 1 On depth 1 0 The descent to On depth triggers the start of a dive Set value greater than Off depth 5 6 2 Off depth 0 3 The ascent above Off depth means the end of a dive Set value smaller than On depth 52 5 7 Preferences 5 7 1 Display Orientation Left hand 6 0 116 31 6 0 116 31 6 9 52 6 9 52 Ag 18 57 Left hand right hand and the auto orientation can
18. acy Avg depth Average depth can be shown instead of temperature See Setup gt Preferences gt Display Custom fields 31 Vertical speed Indication of ascent or descent rate May be relative to the set vertical speed percentage or absolute units min as set in Setup gt Preferences gt User interface Vertical speed Battery symbol A graphical indication of remaining battery capacity See chapter Surface mode Battery symbol page 15 4 5 2 Dive profile screen Start The time of submersion is useful for checking compliance with the schedule Avg The average depth is indicated with the yellow horizontal line and with the average depth in yellow A new start point for depth averaging can be created in dive menu select Settings gt Reset average This point is indicated by the yellow vertical line and the horizontal average depth line starts from there Current depth See lower left corner f 77 0 116 52 Dive time Runtime of current dive is placed in lower right corner Max Maximum depth reached during the dive Field with this value is placed in the middle of bottom line 32 4 5 3 Dive menu End dive Reset average End dive and switch to surface mode This menu item is enabled only on the surface Reset average A new start point for depth averaging will be created Restart point is indicated by the vertical line on dive profile screen Switch off En
19. alls and they cannot be pulled The puzzle is solved when all tanks are in the storage locations 67 10 2 Snake Snake is a game where the player maneuvers a line which grows in length with the line itself being a primary obstacle The player controls the head of the snake As it moves forward it leaves a trail behind resembling a moving Snake The snake has a specific length The player loses when the snake runs into the screen border a trail or another obstacle or eats poison skull or starves to death The snake lose its length slowly every 30 steps and when it is too short it dies from starvation The player attempts to eat fish by running into them with the head of the snake Each fish eaten makes the snake longer so maneuvering is progressively more difficult 68 Section 11 HW specification 11 1 Physical dimensions 65mm 2 5in 52mm 2 0in 85mm 3 3in 69 11 2 O2 sensor cable The cable equipped with the Molex connectors is included in the Closed Circuit version of the Divesoft Freedom distribution package or can be ordered Separately The technical design of the connections on a specific type of rebreather is not the subject of this user manual Cell 3 Cell 2 Cell 1 Cable is delivered with terminals Molex 08 55 102 crimped connectors Molex 22 01 3037 are packed separately to be mounted after passing through cable gland Connector Molex 22 01 3037
20. alues leads to deeper and longer stops at the start of decompression GF high 0 80 The gradient factor at the end of decompression range 0 00 1 00 GF high determines an additional increase of safety when ascending to the surface Setting the value of 1 00 corresponds to the BUhImann decompression algorithm without additional increase of safety using the gradient factors method Setting low values leads to prolongation of shallow decompression stops For extreme dives a GF high greater than 1 is sometimes used less safe than the Standard Buhlmann decompression algorithm This requires the special personally granted license Bailout GF low 0 80 The gradient factor for bailout at the start of decompression range 0 00 1 00 As a general rule for bailout GF low a higher GF value a lower additional increase of Safety is set than for standard GF low Bailout GF high 0 95 The gradient factor for bailout at the end of decompression range 0 00 1 00 As a general rule for bailout GF high a higher GF value a lower additional increase of Safety is set than for standard GF high 40 5 2 2 Safety stop On 3 minute safety stop within depth 6 to 3 m 20 to 10 ft is indicated after a dive toa depth greater than 10 m 30 ft 5 2 3 Ascent gas Optimal Specifies which mixture or set of mixtures will be used for ascent planning If optimal gas is selected then the time to surface TTS and the dive plan as
21. anticipated ascent rate within medium depths in zone 2 range 1 20 m min Depth zone 2 80 m 262 ft The depth defining zone 2 This zone lies between depth zone 1 and the set depth range 0 300 m Speed 3 18 m min 59 ft min The anticipated ascent rate within large depths in zone 3 range 1 20 m min 43 5 2 7 Descent rate Rate is used for calculation of the descent plan and indication of descent rate if relative measuring a a ax fate percentage is set in Setup gt Preferences gt User interface gt Vertical speed Warn under 80 m The threshold at which the alarm is activated to indicate exceeding the descent rate At smaller depths exceeding the descent rate is ignored The value is in m metric and ft in imperial units This alarm is disabled in factory default setting It can be enabled in Setup gt Alarms Alarm sources gt Rates Descent rate Max rate 20 m min The anticipated descent rate range 1 40 m min The set rate is also used for dive planning The value is depth unit per minute m min in metric and ft min in imperial units Descent rate 30 m min is used to indicate a descent rate at a depth shallower than the warn under depth 44 5 3 Mixtures 5 3 1 Mixture setup The number of available mixtures depends on the software version Basic Nitrox 1 mixture of oxygen and nitrogen up to 40 of oxygen Advanced Nitrox 3 mixtures of oxygen and
22. ation to 21 air but will no longer be capable of measuring pO2z of 1 bar or Oxygen purity higher Warning days i Valid days Procedure L Dive gt Calibration O2 gt Start calibration 2 Check the calibration gas 3 Wait for stable values 4 Start and wait for calibration process to end 5 Confirm the save 52 03 mY Wait 1 2 Whether or not a sensor is already at the end of its 53 81 m Wait 1 2 47 77 m Wait 5 0 service life is also determined during calibration At higher altitudes above sea level the partial pressure Temp 25 8 C Baro 1000 9 hPa of oxygen in the calibration mixture decreases in proportion to lower atmospheric pressure The Freedom 29 measures atmospheric pressure and takes it into account during calibration Therefore do not perform any corrections at higher altitudes above sea level 51 98 mY Stable 53 81 mY Stable 47 76 m Stable It is preferred to calibrate O2 sensors prior each dive Do not use sensor reading from sensors calibrated more Temp 25 9 C than three days ago Baro 1000 8 hPa 4 4 3 pO2 reading There is a separate O2 sensor screen in both the surface and dive mode Not only the pOz but also the voltage on sensors can be read If the state of a sensor is not in operational mode not connected error excluded disabled uncalibrated the appropriate tag appears instead of the pO2 value On the detailed and synoptic screen there Is only o
23. ay A red green and blue screen will be displayed for the display test Watchdog Watchdog is a timer that is used to detect and recover from firmware malfunctions You can intentionally hang the computer with this test Do not use underwater Test dive The test dive is used by the manufacturer or an authorized service for the pressure sensor calibration and tightness test It is similar to the gauge mode The test dive log will be stored but clearly marked as a test dive The test dive is not included in the log summary 9 2 3 Demo dive The test dives are suitable for those interested in a demonstration of the Divesoft Freedom features There is no risk associated with the demo dive performing During a demo dive almost all functions can be tested on the surface One exception Is the pressure sensor reading Also O2 sensors connected with a cable can t be used for the measured CCR dive mode The depth profile is provided and decompression gas mixtures are automatically switched The Emergence du Ressel demo dive uses the authentic depth profile from the penetration through the first siphon of this French cave Demo dive logs can be permanently stored into the log memory The oldest dive logs will be replaced by the new demo dive log if the memory is full Demo dive logs are clearly marked A demo dive log if this is the last dive can be erased later using Demo dive gt Erase demo log The single bottom level demo
24. bration starts automatically after the reset 58 Section 6 Log book 6 1 Last dive Details from the last dive from list Dive profile 2015 04 10 07 55 77 0 11 4 The graph is plotted within a white line 02 44 39 deco 24 2 OC 75 Decompression ceiling The graph is plotted within a red line in deco dive only Date and time The time of submersion Depth The maximum depth of the dive 7 The temperature at its coldest point of the dive measured during the ascent Duration This indicates time from submersion at the dive start to surfacing at the dive end It includes all surface stays if part of the dive Notice if the decompression obligation was present Avg depth The average depth calculated from the whole profile Mode Original dive mode at the dive start CNS The CNS oxygen clock value after surfacing 59 6 2 Dive list Here all dives from the memory of the Divesoft Freedom are listed The memory capacity is approximately 100 2015 05 17 hours of typical dive profiles When the memory is full 2015 05 17 2015 05 17 the oldest records are automatically deleted 2015 05 16 2015 05 05 Second and subsequent dives in one day are marked 2015 05 05 2015 05 05 with corresponding letters Demo dives logs stored after the dive simulation are marked with light blue characters Test dives are marked with red characters e g the first dive to approx 350 m Use up
25. d dive and switch directly to standby mode This menu item is enabled only on the Surface 33 4 6 Free The freediving mode is indicated by the yellow table gridlines 4 6 1 Surface screen 14 33 5 50 The freediving surface screen is shown during a freediving session while on the surface 03 ume 1 3 47 The local time is shown on the display in the top left 29 7 13 7 corner Duration The timer starts after entering the Free mode Duration of a freediving session includes the time on the surface and the time spent underwater Surface time This timer is triggered by surfacing Dive count Number of dives during a freediving session CumulativeT The cumulative time is the sum of the time spent underwater Max depth This is the maximum depth reached during a freediving session Temp Water temperature is measured inside the computer case After temperature change wait about 1 2 minutes until the temperature reading reaches a stable value The temperature in air is affected by many factors and is only an indication A temperature correction can be set in Setup gt Calibration for better accuracy 34 4 6 2 Dive screen 1 00 1 58 The freediving dive screen is shown during a dive after the descent to the On depth and before the ascent above Off depth Both depths can be set in Setup 1 8 n D Freediving The dive screen with the maximum depth and the dive 28 7 13 2 time of the last di
26. e in any dive mode press both keys Dive menu Simultaneously to show the dive menu There is current depth partial pressure of oxygen and dive time on the bottom of the screen Mix Mixture selection Only active mixtures are listed and can be selected Mixtures with pOz outside breathable range are displayed in red if pOz is too high or blue if pO2 is too low This does not prevent selection of this mixture An alarm will be activated after this kind of switch Limits of breathable range are set in Setup gt Mixtures End dive Mix gt Show plan Setup Games gt Demo dive 34 9 0 92 11 43 34 9 0 92 11 49 End dive and switch to surface mode This menu item is enabled only on the surface at depth lt 0 5 m Show plan Actual plan of ascent By default the plan includes all gas switches during the decompression including gas switch stop duration If ascent gas is set to current in decompression setting then no gas switches are included in the plan Setup Bailout GF Switch to gradient factor pair for bailout BOGF and vice versa You can switch between standard and bailout GF anytime during a dive See also Setup gt Decompression gt Gradient factor page 40 Setup Reset average the dive profile screen 24 59 9 1 43 19 07 Bailout GF Reset average Mixture setup Display K 34 9 092 12 12 Restarts calculation of average depth T
27. e dive parameters 61 7 2 Resulting PIAN cceecseeeseeeseeeeeeeees 62 Ted SUMMI Y eiaa 62 Teh DOCO GIONS drna 62 Section 8 Log download ssssssssss 63 8 1 Log processing in cloud eese 63 8 2 Off line log processing eeseeesen 63 Section 9 SystemM sssssssssnnnnnnnnnnnnn 64 9 1 System check ssesssssssrssrssrrerrerrerrrsres 64 9 2 Service FUNCTIONS cccecesesecsaeeeeeeaes 64 Orel DO DUG stira toausidvetageGlieantacude 64 SA ES Dea nane a I ES 64 9 23 DEMO GING isna 65 92A TIV SOO ren a a 65 9 2 5 Miscellaneous eeren 66 Section 10 GamesS ssssssssnssnnnnnnnnnnnn 67 TOT SOKODa Musson 67 TOD SNAKE T een ius 68 Section 11 HW specification 69 11 1 Physical GIMENSIONS cccceeeeeeeees 69 11 2 Oz sensor CADIE ee ceeeeceseeeeeeeeenes 70 Section 1 Quick start guide 1 Recharge battery Use the charger included in the package or another suitable USB charger or computer USB port See Charging page 9 for detailed information 2 Switch on Hold both buttons until you feel a vibration and the display starts The computer will be in surface mode in a few seconds 3 Reset to factory defaults if necessary It is not necessary to reset a new computer If you are in any doubt about the correct setting perform reset to factory default Short press both buttons to enter the menu Move the pointer to Setup with the lower button and select with the upper b
28. e to set leave the values of the default setting The manufacturer does not provide a warranty for faulty operation of the Divesoft Freedom if this kind of faulty operation is the result of an improper setup The factory default setting value is shown in square brackets in the following headlines 5 1 Editor use The majority of variable values is edited in a similar manner 0 00 0 30 Tilt toward yourself decrease the entered digit by one or uncheck flag GF low Tilt to the left move the cursor to the left Tilt to the right move the cursor to the right Press upper key discard editing reset to previous value Long press upper key reset to default value Press both keys exit without save Press lower key save and exit Permissible range is indicated by lt minimum default maximum gt value The display shows a brief description below 39 5 2 Decompression 5 2 1 Gradient factor GF low 0 30 GF low l GF high The gradient factor at the start of decompression Bailout GF low Bailout GF high range 0 00 1 00 GF low determines an additional increase of safety at the depth of the first decompression stop or as the case may be at the depth of the decompression ceiling at the start of decompression Setting the value of 1 00 corresponds to the B hlmann decompression algorithm without additional increase of safety using the gradient factors method Setting low v
29. ed CCR dive mode requires connection to the O2 sensors of a rebreather Const pOz2 Electronic or manual CCR eCCR or mMCCR where pO is stable regardless of depth change set by setpoint aSCR The constant mass flow semi closed rebreather active SCR pSCR Respiratory minute volume keyed semi closed rebreather passive SCR 48 5 5 1 Const pO2 Diluents 8 mixtures with any content of oxygen helium and nitrogen can be set This setting is independent from the OC mixture setting The control is the same as with OC mixtures Default diluent A default diluent for a closed circuit rebreather SP Low 0 7 The SP low is set after switching to the fixed setpoint CCR dive mode on the surface SP High 1 3 The SP low can be switched to the SP high manually via the shortcut or via the menu or automatically at a set depth during a descent or at a set runtime SPhigh auto depth 0 m ft The high will be automatically set after a descent to this depth Zero disables this feature SPhigh auto time 0 min The high will be automatically set after the set time Zero disables this feature 49 5 5 2 aSCR VO2 1 5 I min The metabolic consumption of oxygen VOz can be set in the range 0 5 3 l min Constant flow 7 0 l min The constant flow of premix can be set in the range 5 20 l min 5 5 3 pSCR PA ratio 8 0 The PA ratio can be set in the range 2 16 It is fixed by the design of the SCR
30. equired 37 Switch to bailout gradient factors if you wish to reduce the decompression time while increasing the risk of DCS Bailout GF s shall be properly set before dive Multiple gas usage This is not applicable to the Basic nitrox version of the Freedom Multiple gas uSage requires appropriate qualification from a recognized training agency Confirm the following settings e The ascent gas is set to Optimal Setup gt Decompression e All gas mixtures which you plan to use are properly set and active and other gas mixtures are inactive Setup gt Mixtures gt Mixture setup e The default OC mix is set to the gas you plan to descend with Setup gt Mixtures e The gas switch time is set to your preferred time commonly 2 or 3 minutes Never switch the computer to another gas before you start breathing it Make sure that you breathe the right gas with the MOD greater than your current depth Extreme deep diving Every technical diver who dives to depths greater than 100 m 330 ft has to develop his or her own decompression strategy It is necessary to increase the personal limit gradually step by step The maximum operating depth of the Freedom is 300 m 1000 ft This is probably a much greater depth than you and your body could handle For extreme depth short bottom time decompression strategies are common e Dive only if in really good physical shape get your heart examined for PFO e Use the computer only as a backup
31. es 43 5 2 7 Descent rate ssssssesssssesrrrerssrresrrrrrerrrre 44 33 MIKUO ce 45 5 3 1 Mixture SetUp eessssssseessrrrrreesrrrrrrressrrrrrne 45 Dok DELOC I iiac A 45 D33 MiNPOz 0 18 Daf ennas asre n 45 5 3 4 Wak p02 1 60 bar sssnnnnnnnssnnnnnssssrnnnnee 45 5 4 ALAIN onnsnnsnnsnnsnnernesrerrrsrrerrnrrerrerrrerrn 46 5 4 1 Global alarms On 46 5 4 2 Alarm SOUFCeS ccceeeeeeeeeeeeseeeeeeeeeeesnsaeeeeeess 46 5 4 3 NotificationS eesssssseessrrrrrersrrrrrrreesrrrrrne 47 5 9 CCR SCR SetU ronis 48 5 5 1 CONSE pO2 ssssssssssrssesrrrsesrrreesrrrresrrrresrrreee 49 DDA DICR ocresese n n 50 DS WS GO E E A T 50 5 5 4 COMMON SALtiNGS ccsecseccsssseeeesaeeeeeesaees 51 5 6 Freediving Setup cccccccssseseeeeeeees 52 Sol OR deptn LO inina 52 D62 Orf CED 0 3 ecra p 52 5 PrE I O cities iene 53 td DISPlay acensesis eeni 53 Sdad TMOU airina a 55 5 7 3 User interface eessssssseessrrrrreessrrrrrressrrrrrne 56 Dae SalI FES renani 57 5 7 5 Default mode OC 57 5 8 CAOLALOM cacncmensmuncmincmansiannimacimantenanait 58 5 9 Date And time ccceccceccsseeseeeeeeeeees 58 5 10 Factory defaults ccccccsescseeeeeeeeees 58 Section 6 Log DOOK sssesseesseeseeeeees DQ 6 1 LAST dive veviiwidivitinirrerivcriwekiierisavareveren 59 6 2 DIVE LISt cccececcccecececeaeeeeeeeeavauaeeeeaes 60 63 SUMMAN sae aiar dear ian O 60 Section 7 Dive planner ccssccsseeess 61 7 1 Th
32. file calculation Never risk your life on only one source of information Warning Always check the device before diving in order to ensure that the display works the device has not run out of battery power and all settings are correct Warning All software contains bugs and the firmware of the Divesoft Freedom is no exception The computer can probably do unintended things Warning This computer may malfunction at any time The question is not whether it will fail but when it will fail Always have a plan on how to handle failures Responsibility of the Divesoft Freedom user A Divesoft Freedom user must accept the fact that diving involves risk Adherence to everything that the user has learned in the Divesoft Freedom s technical documentation and in training can reduce the risk but cannot eliminate it Safety when diving is further enhanced by regular training methodical education and adherence to good diving practices Technical diving requires a far higher degree of care and discipline than recreational diving If you do not accept the risk and you are not a trained careful and disciplined diver do not dive with the Divesoft Freedom Upgradable computer Features of the Freedom versions awm ve amex mm om mw Hardware of all versions of the Divesoft Freedom computer is the same Only the software differs The software version can be upgraded Pictures in this manual are based on the Closed Circuit versi
33. he restart point is indicated by the vertical line on Setup Mixture setup Corresponds to mixture setup in Setup gt Mixtures gt Mixture setup This feature is intended only for emergency situations Do not use this setup on a regular basis Settings Display This setting corresponds to Setup gt Preferences gt Display Games Simple games can be played during a dive especially during decompression See section Games page 67 Switch off End dive and switch directly to the standby mode This menu item is enabled only on the surface 4 2 7 Gas switch shortcut Long press of the upper key selects previous gas mixture Long press of the lower key selects next gas mixture This list is cyclic What mixtures can be switched depends on the setting in Setup gt Preferences gt User interface The default setting for gas shortcuts Is off If Breathable is selected then mixes with pOz inside the breathable range with regard to the current depth are switched The limits of the breathable range are set in Setup Mixtures If All is selected then all active gas mixes are switched regardless of breathability An alarm could be activated after this kind of switch The computer will wait five seconds before generating an alarm The user can choose the correct gas mixture during this interval 25 4 3 Fixed setpoint CCR The rebreather dive modes are only available in the Closed Circuit version of the Divesof
34. hed during a dive 18 CNS Exposure to high oxygen partial pressure may under certain circumstances cause acute CNS oxygen poisoning This may lead to the drowning The so called oxygen clock is a percentage of consumption of CNS toxicity limit Calculation is based on NOAA oxygen exposure limits pOz Maximum Single Exposure Maximum per 24 hr bar a Eo 1 60 D S S S E sot Oo w o w o ow w o e CNS oxygen clock value does not take chronic pulmonary oxygen poisoning into account For exposures common to technical diving chronic toxicity manifestations are not significant For very long dives it is necessary to calculate with long term exposure limits and to limit the overall exposure When pO2 1 4 bar then the CNS toxicity limit is always shorter than the pulmonary toxicity limit For calculations related to chronic toxicity use the REPEX method that you know from the nitrox diving course The Divesoft Freedom does not perform calculations associated with chronic oxygen toxicity Avg D Average depth It is possible to create a new start point for depth averaging in dive menu select Settings Reset average 19 Floor Decompression floor is the depth at which the time to surface TTS does not increase Calculation of the decompression floor is approximate Staying at the exact depth of the indicated floor leads to a modest decrease in the upcoming decompression time This position on
35. hich tilting is used in surface modes is limited during the dive to only special cases Tapping on the display glass switch on the display if it is switched off Shining a light on the display in the dark illuminating the display with a dive light activates it similarly as when tapping on the glass In the light the display can be activated by covering and then uncovering it 3 1 3 Language All textual information on the Divesoft Freedom is in English Controlling the apparatus requires knowledge of the English language minimally at a level that allows the user to thoroughly understand this information 11 3 2 Brightness control The 3 levels of the display backlight brightness can be switched by the lower key the display off the level set in the Setup gt Preferences gt Display gt Brightness and the maximum brightness equivalent to level 9 If the display is off then use the short press to switch it on The second and subsequent press with a short delay between presses lt 1 s switches the brightness level The display can t shine through disturbed silt or mud on low brightness If it is necessary to switch to the maximal brightness just short press the lower key repeatedly The maximum brightness will be set after two button pushes if the display was off in the beginning or three pushes if the display was on See also Advised strategies Diving in darkness page 36 This way of brightness control wor
36. in any 13 57 52 rebreather mode regardless of depth even on the Surface 1 30 If you spend a long time in dive mode while not 1 30 1 30 breathing from the rebreather s loop then increase the time for the stack time warning 25 07 Don t forget to reset the timer when you refill the scrubber Dive gt Stack time reset You can find the stack time on the O2 sensors screen 28 4 4 Measured CCR The rebreather dive modes are available in the Closed Circuit version of the Divesoft Freedom only This chapter of the user manual describes only the differences from the fixed setpoint CCR diving First you will have to study OC mode and fixed setpoint CCR mode 4 4 1 O2 sensors connection The measured CCR dive mode requires a connection to the O2 sensors of a rebreather One two or three sensors can be connected The cable equipped with the Molex connectors is included in the Closed Circuit version of the Divesoft Freedom distribution package or can be ordered separately See also chapter O2 sensor cable page 70 4 4 2 O2 sensors calibration Start calibration If possible use oxygen with purity of at least 99 5 for Change gt calibration Do not use air for calibration The partial pressure of oxygen in air at atmospheric pressure significantly differs from the partial pressures determined by the setpoints At the end of its service life an oxygen sensor can successfully undergo calibr
37. is allows or prohibits signaling of all alarms for the entire system Global alarms i o i Alarm sources Warning Global prohibition of alarm signaling is Notifications intended only for exceptional cases If you do not have any serious reason to deactivate the alarms leave them switched on If you switch off alarm signaling you must often check all dive parameters with great care 5 4 2 Alarm sources Ceiling On Ceiling Deco stop miss The alarm is activated if the decompression ceiling is CNS p02 Rates more than 1 m 3 ft the second alarm is generated Low battery exceeded in the ceiling regimen In case of violation of Deco stop miss On The alarm is activated if the decompression stop is violated in the stops regimen CNS On This alarm occurs when 75 90 and 100 of CNS oxygen toxicity limit is reached pO2 Occurs when partial pressure of oxygen has exceeded max pOz or declined below min pOz These limits can be set in Setup Mixtures Rates Descent rate Off A descent speed greater then set and deeper than set activates the alarm See descent rate setting in Setup gt Descent rate page 44 Rates Ascent rate On An ascent speed greater then set for the current deep interval activates the alarm See ascent rate setting in Setup gt Ascent rate page 43 46 Low battery 25 The alarm is activated if the remaining battery capacity falls below this
38. ks in all modes except gauge and free mode where lower button is assigned to stopwatch 3 3 Switching on the unit The device is switched on by pressing both keys for three seconds Automatic activation occurs in the event of entering the water in standby mode If Submerged to a depth greater than 1 5 m the computer switches to default mode OC in the default setting can be changed in Setup gt Preferences Automatic activation is not immediate it is necessary to wait a few seconds The computer may be switched on automatically in higher depth if a descent is rapid It does not affect the decompression calculation but the first few seconds of the dive profile record will be lost The automatic activation on submersion is disabled when switched to the flight mode In case the diver forgets to switch on the computer after a flight the computer will switch on at 5 m depth within 1 minute 12 3 4 Switching off the unit Enter the menu from surface mode select Switch off and once more Switch off in the second menu as a Switch off Flight mode confirmation The computer will be switched off to Standby mode Or you can select Switch off in the first menu and select Flight mode in the second menu This prevents an automatic activation due to a rapid pressure change and confusion of the surface level detection algorithm You can switch off directly from dive mode while on the surface This way the unit will be switched
39. logging the opening The pressure sensor is located underneath Section 3 OQperation 3 1 Control elements The following inputs and combinations thereof are differentiated e Press upper key e Press lower key e Press both keys e Long press upper key e Long press lower key e Long press both keys e Coded key press press both keys then release one key and press it again then release both keys e Tilt away from yourself e Tilt toward yourself e Tilt to the left e Tilt to the right e Tap the display glass e Shine a light on the display Long press means pressing the key for more than 2 5 seconds The key press operation is terminated at the moment the key is released or in case of pressing both keys when the last key is released The upper lower keys and directions of tilting are determined by the display orientation depending on whether it is set up for the left or right hand Tilting can be changed tn the configuration to tapping on the computer body from any of the four sides 3 1 1 Meanings of inputs in surface modes The keys and other inputs are assigned meanings in connection with the current navigation item in the menu At the same time however general rules which apply wherever possible are determined for their use Press upper key confirm the menu item just selected
40. logs directly in your PC Requires MS Windows Download at www divesoft cz support 63 Section 9 System 9 1 System check There is detailed version license settings battery and pressure sensor information described on 5 screens 6 for CCR version 9 2 Service functions Service functions are primarily intended to support a qualified technician or to be performed with the recommendation of the manufacturer s technical Support These functions are not blocked but no end user support is provided A detailed description is beyond the scope of this manual A IT specialist can understand most of them without further description The service functions menu Is accessible via the coded key press press both keys release one key and press it again release both keys 9 2 1 Debug All debug information is read only There is no risk associated with browsing them just for curiosity Sensors A detailed state of all sensors Deco model The state of the decompression model is described in detail on 5 screens including the compartment saturation graph Scheduler The firmware task list with information specifying the system footprint Variables The values of some internal variables 9 2 2 Test There is no risk associated with performing these tests just for curiosity while on the surface Buttons It runs a simple test of both buttons 64 Vibration It runs a short test of the vibration Displ
41. mperature reading or the average depth can be set for the gauge mode screen 0 00 O 46 34 9 34 9 5 7 2 Timeouts Surface idle 10 min The Freedom will be switched off after this timeout expires range 1 120 min Before switching off Shutdown question is displayed for 30 s Select No to restart this timer Prepared idle 15 min The manually activated dive mode will be switched back to surface mode if the dive does not start during this timeout range 1 120 min Dive termination 10 min The dive will be terminated after surfacing and if no subsequent submersion starts during this timeout range 0 30 min Zero disables this feature i e dive will not be terminated automatically Dive end Confirm Off If the dive end confirmation is On then a confirmation dialog is displayed for 30 s before the dive ends Select No to restart the dive termination timer 55 5 7 3 User interface Units Metric Imperial or metric units can be selected Checklist Enabled If this is not disabled then the setting summary will be shown when the dive mode starts This is an essential part of a predive check especially for muti gas and rebreather diving Plan order Time The dive ascent plan can be sorted by time or by depth i e in reverse order Key press delay 0 If a greater value than O is set then a longer button press is needed to be recognized as valid user input Use in case of tr
42. mware update or the version upgrade Connect the USB cable included in distribution package to the USB port of your computer where the DSLoader software is properly installed See www divesoft cz support for further information and for the firmware download The version license is fixed to the unit s serial number and non transferable to the other Divesoft Freedom computers 66 Section 10 Games Do not disable error messages and notifications related to decompression if the games are played during a deco stop Ensure to not accidentally reposition during playing Check pressure gauges on a regular basis Playing a game will reduce your attention Remember you want to decompress Safely not just achieve a higher level in the game The games were tested on children Nobody was hurt 10 1 Sokoban Sokoban is a type of transport puzzle in which the player a diving mask with snorkel pushes tanks or crates around in a warehouse trying to get them to storage locations red dots TE e NE The game is played on a board of squares where each AA o Square is a floor or a wall Some floor squares contain tanks and some floor squares are marked as storage locations The player is confined to the board and may move horizontally or vertically onto empty Squares never through walls or boxes The player can also move into a tank which pushes it into the square beyond Tanks may not be pushed into other tanks or w
43. ne 13 37 52 67 9 1 30 reading of the pO2 value the arithmetic average of active sensors is used You can mark any sensor as faulty during a dive in dive 70 0 1 30 menu Setup gt Faulty sensors 62 P 1 20 5 07 30 4 5 Gauge The gauge mode Is indicated by the red table gridlines 4 5 1 Detailed screen 0 00 8 46 Stopwatch Operate the stopwatch by the lower button 3 4 e e Short press start stop Long press reset 34 9 12 7 There is no display brightness control on lower button in gauge mode Dive time The timer starts after submersion depth gt 1 5 m and halts after surfacing depth lt 0 5 m In case of stay on the surface or at very shallow depth followed by a second submersion during a time set in the dive termination timeout the dive time indicated will be the time from the first submersion including the surface time Depth The depth can be read in the units set in the setup m or ft Depth is calculated from measured hydrostatic pressure For calculation fresh water default or seawater density can be set Max Depth The maximum depth reached during the dive Temp Water temperature is measured inside the computer case After temperature change wait about 1 2 minutes until the temperature reading reaches a stable value The temperature in air is affected by many factors and Is only an indication A temperature correction can be set in Setup gt Calibration for better accur
44. necessary information during a dive 6 0 1160 31 Depth 6 9 52 48 The depth can be read in the units set in the setup m or 18 57 pressure Fresh water default or seawater density can 14 1 6 ft Depth is calculated from measured hydrostatic be set for the depth calculation Setting of fresh sea water doesn t affect decompression calculations Decompression is based on ambient pressure and is independent of displayed depth Only depth of decompression stops is rounded up to usual values according to settings of fresh sea water and metric imperial units Dive time The timer starts after submersion depth gt 1 5 m and halts after surfacing depth lt 0 5 m In case of stay on the surface or at very shallow depth followed by a second Submersion during a time set in the dive termination timeout the dive time indicated will be the time from the first submersion including the surface time Deco Stop The depth of the decompression stop can be read in the units set in the setup m or ft Last stop depth depends on settings The Deco Stop value is shown only if the stops decompression regimen is set See Setup Decompression gt Deco stops page 42 Stop Time Length of the decompression stop at the Deco Stop depth While on stop there is a countdown timer here Rounding of the decompression stop length depends on setting The Stop Time value is shown only if the stops decompression regimen is set
45. on of the Divesoft Freedom Limitation of other versions are mentioned in the text 1 The Closed Circuit version includes a cable for connection to rebreather O2 sensors Contents Section 1 Quick start guide 8 Section 2 Hardware ssssssnnnnnannnnnnnn O 2k CHANGING econo en 9 22 WIEEMOUN crecen 9 Section 3 OperatiOn sccssscssseesseees LO Bik CONTO CIC IMENIES canusaiweiusesenmenanesane 10 3 1 1 Meanings of inputs in surface mode 10 3 1 2 Meanings of inputs in dive mode 11 3 1 3 Language veri ssseceressseciossastecnsessrtios aetensersenets 11 3 2 Brightness CONtIOl cccceeeeeeeeeeeees 12 3 3 Switching on the unit 12 3 4 Switching off the unit 13 Section 4 Diving ssssssssssnnnnnnnnnnnnnns LG 4 1 Surface mode sssssssssserssrrerrrrrerrseress 14 4 1 1 Entering surface mode esssssseessrrrrreen 14 4 1 2 Surface mode screen sssessssrrrseessrrrrrees 14 4 1 3 Switching to other modes eseese 15 4 2 Open Circult cccceceeecseesseeeeeeeeeeeeaes 16 4 2 1 Entering open Circuit Mode 16 4 2 2 Detailed screen ccccessseeeceeeseseeeeeeeeeens 16 4 2 3 SYNOPTIC SCFEEN cee ceeccceseeeeeeeeeeeeeeeeeeeeeeeeas 22 42 4 Big SCC CM aeaiia nina 22 4 2 5 Dive profile screen essssssssesssrrrrreessrrrrrres 23 4 2 6 DIVE MEenU s sssssssssessssrrrrrressrrrrrrresrrnrrrreene 24 4 2 7 Gas Switch SNOrtcut cceeecceceesseeeeeeeeeeeees
46. onged stay on the deco stop due to rounding may lead to the disappearance of the next short deco stop and could negatively affect the decompression profile smoothness Gas switch 2 min The gas switch duration may be set from 0 to 5 minutes This time will be added to the dive plan and TTS calculation 42 5 2 5 Deep stops Pyle Deep stops Off Empiric modification of decompression profile according to Richard Pyle s algorithm The combination of Pyle stops and a small value of the GF low can result in a not so optimal decompression profile Please choose only one preferred method As a general rule use GF low 0 30 or less and switch left switched Pyle Deep stops Off Stops duration 2 min The value of the Pyle stops duration range 1 3 min 5 2 6 Ascent rate Rate is used for calculation of the ascent plan and indication of ascent rate if relative measuring Speed 1 Depth 1 percentage is set in Setup gt Preferences gt User Speed iii interface gt Vertical speed Depth zone 2 Speed 3 Speed 1 10 m min 33 ft min The anticipated ascent rate within small depths in zone 1 range 1 20 m min The value is depth unit per minute m min in metric and ft min in imperial units Depth zone 1 10 m 3 ft The depth defining zone 1 This zone lies between the surface and the set depth range 0 300 m The value is m in metric and ft in imperial units Speed 2 10 m min 33 ft min The
47. ot intentionally use this switching method it is intended only for emergency situations 26 4 3 2 Setpoint The SP low is set after switching to the fixed setpoint CCR dive mode on the surface It can be switched to the 68 4 48 48 SP high manually via the shortcut or via the menu or 18 12 13 55 automatically at a set depth during a descent or at a set runtime 3 00 SP reading eCCR 69 4 17 12 The current setpoint value is located where the pOz is situated on the display in OC dive mode on both the detailed and synoptic screen pO2 reading SCR The calculated pO2 value is shown instead of the setpoint if you dive with the SCR See chapter CCR SCR Setup page 48 Shortcut With the CCR the long press of the upper key selects the high setpoint The long press of the lower key selects the low setpoint The shortcut is by default off but it can be enabled in Setup gt Preferences gt User interface set All or Breathable as you prefer for open circuit If the semi closed rebreather SCR is used then the gas mixture is switched with this Shortcut similar to OC mode Manual SP setting Set High 1 30 Select Setpoint from the dive menu Hi TA 0 70 0 10 The high and low setpoint can be chosen directly from Accept 1 30 the menu For the current setpoint adjustment use the 0 10 and 0 10 menu items for the SP value change can be used repeatedly the final value is displayed 69 0 1 30 47 13
48. oubles with unintended activation Editor navigation Tilt The numbers in the editor can be increased or decreased by tilt or by tap To control with tapping it is necessary to practice a little Do not change the tilt setting unless you have a strong reason Gas shortcuts Off The default setting for gas shortcuts is off If enabled then a long press of the upper key selects the previous gas mixture and a long press of the lower key selects the next gas mixture This list is cyclic If the breathable option is selected then mixes with pO2 inside the breathable range with regard to the current depth are switched The limits of breathable range are set in Setup gt Mixtures If the all option is selected then all mixes are switched regardless breathability An alarm will be activated after this kind of switch Vertical speed Percent If percent is set then the ascent and descent rate are indicated relatively to the ascent and descent speed limits If unit min is set then the ascent or descent rate are indicated in depth unit per minute 56 5 7 4 Salinity Fresh If changed to the Sea option then the density of seawater will be used for the depth calculation The majority of depth gauges is calibrated to fresh water Do not change this setting unless a direct comparison with a depth gauge calibrated to seawater is needed Setting of fresh sea water doesn t affect decompression calculations Decompression i
49. per button short press to open the screen with the dive details Use long press to go through the pages 6 3 Summary A summary of all dives from the memory of the Divesoft Freedom is shown test and demo dives excluded 60 Section 7 Dive planner 7 1 The dive parameters Plan mode Plan mode Surface interval Select the dive mode you are planning for Target depth Bottom time Surface interval Bottom mix Start calculation Enter the surface interval from now in minutes Start simulation Save as default Target depth Enter the bottom depth in m ft For a multilevel dive use an average depth Bottom time Enter the dive runtime when the ascent starts including descent Bottom mix The gas mixture planned for a descent and the stay on the bottom Start calculation The result of the plan calculation is a Summary and a detailed listing of deco stops Start simulation Start real time simulation of the dive The computer will switch to dive mode and will Show all displays in the same way as during a real dive Save as default Save the parameter set as a default for the following plans 61 7 2 Resulting plan 7 2 1 Summary Nodeco The runtime of the planned dive where the decompression obligation starts TTS The time to surface at the ascent start Total The runtime when surfacing CNS The percentage of consumption of CNS toxicity limit NoFly The no fly time afte
50. r the planned dive 7 2 2 Deco stops The description of the ascent profile and used gas mixtures If optimal gas is selected in the decompression settings then the plan considers changing of gases from the list of active mixtures the gas switch time Is included If the current gas setting is selected in the decompression settings then only the actual gas is used 62 Section 8 Log download Connect the USB cable included in distribution package to the USB port of your computer tablet or mobile phone A USB adapter will probably be necessary for mobile devices Select the USB connection item in the menu The Divesoft Freedom memory can be connected as a mass storage device like a flash drive The connection to Windows Mac Linux Android and iOS was tested but there is no guarantee of compatibility with all operating systems and all computers Access to the internal memory is read only Logs are stored in the DIVELOG folder data from one dive is stored as one DLF file ES Wetnotes com Visit WETNOTES COM and explore all the possibilities that it offers 8 1 Log processing in cloud Download files from the DIVELOG folder to your hard drive and then upload data to WETNOTES COM Here you can store and edit your dives study graphs details and much more If you wish you can share dives with your buddy or a group 8 2 Off line log processing A simple desktop application for reading dive
51. s based on ambient pressure and is independent of displayed depth Only depth of decompression stops is rounded up to usual values according to settings of fresh sea water and metric imperial units 5 7 5 Default mode OC If submersion to a depth greater than 1 5 m occurs with the computer in surface mode or switched off the computer switches to the selected default mode 57 5 8 Calibration Horizontal calibration Calibration of accelerometers which are used for control by tilt or tap Place the computer horizontally display up and press any key It is preferred to use a steady horizontal ground e g a table Pressure corr 0 00 mbar Specify pressure sensor correction for more precise measurement of a barometric pressure or altitude This correction is not needed for general use Temperature corr 0 0 C F Specify temperature sensor correction for more precise measurement of temperature This correction is not needed for general use 5 9 Date and time Local time in format YYYY MM DD hh mm ss can be set Do not change local time between repetitive dives because the change of local time affects the calculation of desaturation during a surface interval It is advised to set the local time of a destination prior to leaving for a diving vacation ina different time zone 5 10 Factory defaults Reset all setting to default values except date and time Computer will be restarted and the horizontal cali
52. sume the changing of gases from the list of active mixtures If current gas is selected then only the gas currently breathed is used for TTS calculation and dive planning This setting is preferred for dives that do not involve changing gas mixtures 41 5 2 4 Deco stops Stops Celil Stops The Divesoft Freedom can be used in the regimen of separate decompression stops or in the regimen with Stops Ceil only the decompression ceiling depth indicated Last stop Rounding Gas switch As a general rule the stops regimen is more suitable for open water diving and is easy to understand and follow The ceiling regimen is more suitable for cave and technical diving The time spent on decompression is slightly shorter if the ceiling regimen is used for continuous decompression Personal preference is the most important Last stop 3m 10ft The depth of the shallowest decompression stop can be set to 3 m 10 ft or 6 m 20 ft Choose the depth according to the conditions on the surface and your preference A deeper last stop extends the decompression time slightly Use the 6 m 20 ft last stop when using 100 oxygen for decompression Rounding 60 s You can choose the time on stop rounding 1s 30s 60s 30 or 60s is a good choice for recreational dives For deep dives especially with a small value of the GF low and resulting short stops on decompression start it is better to choose the 1s rounding Otherwise a prol
53. t Freedom It is strongly recommended to familiarize yourself with open circuit OC diving using the Divesoft Freedom before using for rebreather diving This chapter of User manual describes only the differences from OC diving First you will have to study the OC mode If the Freedom is used as a backup computer for an R then th tti ing to th eCC en the proper setting corresponding to the 2015 Apr 14 10 39 setting of the eCCR electronic is crucial If a manual CCR mCCR is used then maintain the pOz2 in the breathing 2 days loop on the value equivalent to the Feeedom setpoint SP If a SCR is used then select the correct type of SCR and adjust its parameters in setup 0 00 4863 For the CCR or SCR setup see Setup gt CCR SCR Setup page 48 Don t forget to set up the OC bailout too especially the default mix The fixed setpoint CCR mode is indicated by the cyan table gridlines n Fresh 4 3 1 Predive and submersion 80 80 80 95 Switch the Freedom on before entering a water Check Stops the Freedom settings as part of a predive check ne Off The first screen is a Summary of the decompression 999 8 settings and the OC bailout parameters the second Some screen is the summary of rebreather specific parameters If submersion to a depth greater than 1 5 m occurs the alle p02 computer switches to the default mode Set default mode to the CCR fixed during dive preparation in Setup Preferences Do n
54. the beam to prevent confusion with a light signal Low brightness For diving with eyes accommodated to darkness use the lowest brightness setting level 1 Your night vision will not be disturbed It is preferred to have the display on all the time i e screensaver timeout set to 0 This option is typical for night dives in clear water Dive with slightly brighter display while using a low power torch Balance the power of the backlight to the power of your torch to find the optimal setting no glare but good readability The display can t shine through disturbed silt or mud on low brightness If it is necessary to switch to maximal brightness just short press the lower key repeatedly 4 7 2 Decompression Risk factors Default GF values 0 30 0 80 are suited for a diver in good physical shape Use a more conservative setting and make only dives with short or no decompression if any risk factor is present 36 The major risk factors for decompression sickness DCS are e Dehydration e Heart disease especially PFO patent foramen ovale or ASD atrial septal defect e Previous DCS e Older age e Overweight or obesity e Exercise during a dive or post dive e Fatigue e Irresponsibility or inability to follow proper decompression procedures If excessive fatigue or any other subclinical form of DCS occurs after a dive during which a proper decompression was performed then the presence of one or more risk factors can
55. the detailed screen is customizable You can alter the decompression floor or average depth in Setup gt Preferences gt Display gt Custom fields Temp Water temperature is measured inside the computer case After temperature change wait about 1 2 minutes until the temperature reading reaches a stable value The temperature in air is affected by many factors and is only an indication A temperature correction can be set in Setup gt Calibration for better accuracy pO2 The calculation is based on depth and O fraction in breathing mixture 20 Combined graphic symbol The combined graphic symbol on the detailed screen is intended for rapid orientation It tells the diver what must be done The color of the warning symbols changes from yellow to red according to the degree of importance Permitted to ascend to the surface Permitted to ascend to the depth of the decompression stop or decompression ceiling The depth of the decompression ceiling or decompression stop has been reached do not change depth The depth of the safety stop has been reached do not change depth The ascent rate has been exceeded slow down your ascent The current depth is less than the depth of the decompression ceiling SS O B o descend Vertical speed There is an indication of the ascent or descent rate below the combined graphical symbol Can be set to a relative or absolute m min or ft min reading The relative reading is
56. to standby Yes mode so automatic activation by submersion is Flight mode enabled The other way to switch off is by waiting for a timeout No Upon surfacing the Freedom will switch to surface mode after time set in the dive termination timeout Then it will switch to standby mode after time set in the surface idle timeout Pushing any button restarts the idle timer in the surface mode 13 Section 4 Diving 4 1 Surface mode The surface mode is indicated by the gray table gridlines 4 1 1 Entering surface mode The Divesoft Freedom switches to surface mode upon being switched on 4 1 2 Surface mode screen 2015 Apr 10 15 45 Date and Time Maintain correct local time setting It will be used for log 18 days recording Surface time 0 00 48601 The time from a previous dive If it was 99 days ago or more then FREEDOM banner appears instead of the time Default mode The dive mode to which the Freedom will be switched if submerged to a depth greater than 1 5 m No fly The calculation of the no fly time is based on the maximum allowed altitude according to the BuhImann decompression algorithm ZHL The air pressure in the cabin of a commercial aircraft is maintained at a level corresponding to air pressure at 1800 2400 m 6000 8000 feet above sea level while cruising altitude falls in the range 11 000 12 200 m 36 000 40 000 feet The no fly time calculation uses the decisive altitude 4464 m 14 6
57. utton Then move the pointer to Factory defaults select and confirm Horizontal calibration starts automatically after reset Place the computer on a table and press any key 4 Adjust to right hand if required Adjust display orientation to your preference Short press both buttons to enter the menu Move the pointer to Setup with the lower button and select with the upper button Then select Preferences gt Display gt Orientation 5 Switch to imperial units if required Adjust the units to your preference Short press both buttons to enter the menu Move the pointer to Setup with the lower button and select with the upper button Then select Preferences gt User interface gt Units 6 Select wrist mount If you prefer a strap attach the strap to the computer If you prefer a bungee then remove the screws holding the bars and pass the bungee through the threaded holes Both the strap and bungee are included 7 Switch to dive mode In menu select Dive gt Default OC A brief overview of settings will appear Verify settings and confirm with the lower button Now your Divesoft Freedom is prepared for simple dive with open circuit SCUBA using air Section 2 Hardware 2 1 Charging Use the USB charger included in distribution package or any USB port suitable for charging The included charger is international it can be connected to the all major wall sockets The Freedom s connector Is situated between the buttons If
58. ve is accessible after surfacing with a short press of the upper button from the surface screen Stopwatch Operate the stopwatch by the lower button Short press start stop Long press reset Dive time The timer starts after submersion to the On depth and stops after ascending above the Off depth Depth The depth can be read in the units set in the setup m or ft Depth is calculated from measured hydrostatic pressure For calculation fresh water default or seawater density can be set Max Depth The maximum depth reached during the dive Temp Water temperature is measured inside the computer case Because the system is slow it provides only an indication during short dives 35 4 7 Advised strategies 4 7 1 Diving in darkness High brightness all the time This is the preferred option for a simple dive with a high power diving light torch used by all team members Brightness level 6 to 8 is recommended Don t use this option if light coming from the Freedom display and light coming from your diving partner s torch can t be clearly distinguished in the peripheral vision Otherwise it may lead to the separation of the team members Switching on off This option is typical for cave diving Set brightness to a high level 6 to 9 and a short screensaver timeout 15 s is more than enough Preferably activate the display by light during a dive Move the Freedom to the light beam instead of moving
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