HUDC – User Manual Head Up Dive Computer
Contents
1. ENE 16 6 2 DENN 17 7 Men s SENOS AMA II A A nies 18 7 1 Menu Structure 18 7 2 MAN ME 19 7 3 A M U E 19 tal SETTIME e E A E E EE EE a E E E REE E E E 20 TETEN 21 TI ETNE A A A A A cence eee eae eae 22 7 3 3 1 FO gt t adjusting volume fraction of Oxygen content rr e e 22 1332 PSET Tops Lc dio RR T A A M 23 A A e o 23 Ann A Po M 24 Ta d jp e HM 25 TG ET 25 O 2014 Seabear Diving Technology Graz Austria Page 2 of 49 HUDC Manual 7 4 USB MODE Je 26 A un cs 0 A o O o EE 27 FAZ DP 28 LAS a Ao og o AA 28 8 A PA 29 8 1 BES NR 29 8 2 BIP EK 010 se idas dridco cn 30 8 3 No decompression dives una EE EEE NE 31 8 4 Decompression EE EEE Tm 32 8 5 A SSS EE SEE DEE EE NERE NE IE 35 8 6 Displayed information HAVE MANG necia 37 8 6 1 Remaining no decompression time NET essa nasal oi 37 AAN A 37 80 29 Ascent Descentrate bar EE EEE ERE 38 io A PFP A 39 9 NE A A E E A eee 41 9 1 no de RER NERE NN 41 9 2 Fe duse sd 41 VE oleada er 42 11 Technical specifications ii ER 43 11 1 Intended USE aaa E E T E UIT 43 11 2 Operating conditions nt cs ce dere cet ncn NE EEE 43 11 3 Operating temperature2. c dnos coercere pene ear caue sc tad aea steds ledaate sted UAM duced EEEE EEEE 43 11 4 Beso p UN 43 11 5 Tank pressure SET OMM 43 11 6 Temperature MEASUrEMENK cceccceeeeceeeceeceeeeececessseeseeeeeeeeeeeeeceeeeaeaeauaneussssecseeeeeeeeeseeeeeaeaeaeauaaseceeeeeeeeeeeeeeeeeeeeeanenanes 44 11 7 Me 44 11 8 a o EE EEE 44 11 9 Pearl 44 EE LRL 44 1 A Po dem E ui 44 12 VENER ee 45 11 13 Mechanical and Boa 101 de 6 5 0 SURE AAA AROS 45 12 False or a id tr 46 12 1 Oxygen concentrations NI cuela 46 2014 Seabear Diving Technology Graz Austria Vers 1 3 HUDC Manual Vers 1 3 12 2 e AA ANS cant Re Ond crga rie UR S idtm A DUDREEU DE dE Ud E 46 12 3 Decompression MIS ENER EE NERE EEE ER 46 12 4 Activation Ne 46 12 5 FN pr 46 12 6 BLE OE VEETEREN o A EE ER 47 12 7 Display dive Modo EEE EE es 47 19 A II 48 14 SEABEAR Limitation of Liability O 2014 Seabear Diving Technology Graz Austria Page 4 of 49 HUDC Manual Vers 1 3 1 Introduction Welcome to Seabear Diving Technology You have chosen a sophisticated Head Up Dive Computer a true hands free dive computer solution of high quality reliable safety and ease of usability that displays all dive relevant data directly in front of your eye The Head Up Dive Computer HUDC can be mounted on any second stage regulator With a flexible mounting device you are able to brin
3. HUDC User Manual Head ED Dive Computer Vers 1 3 Mar 2014 p Contact details j info seabear diving com Seabear Diving Technology Seabear GmbH Austria HUDC Manual Vers 1 3 Table of Contents 1 as eo AMA cer fer tient tre Darter oer enn EE EST 5 2 Sal AGM EE EEE PEA AA UE 6 3 Warnings cautions MOES EEE EE EE EE EEE f 3 1 Warning Me PR 7 dui NOTICE I ee oma 9 4 Mounting the Ears 10 4 1 Mounting the pressure Mans IM sseni teas tuoi cob EN NN 10 4 2 Mounting the HUDC on a full face Mask ooooooocccccnonanonoccccnnncnnnccnccccnnnnnnnnnnonnnnnnnnnnn nn cnn neni n nn cnn nn nn nnnnn nn nn sss ssh nnn t nnns nnns nnne 11 4 3 Mounting the HUDC on a second stage regulator ice sete snneseacusunsaeececeeecneceeeeeeseneeeeernenee 12 4 4 Adjusting the length of the mounting bracket iiir rr seiner ost dd 12 4 5 iua Me E EE 13 5 Operating o Tc 14 5 1 CONTO DUO E 14 5 2 Activation and deactivation Of Big AQUIU D e M 14 5 3 Optic and display interface EEE Tm 15 5 4 esce ETEN NE PEE EEE Sr SE erT cera aula O 15 6 Operainhg MOTES CE EID o o o o 025 o om 15 6 1 Surface 001810 65 0 P
4. Graz Austria Page 36 of 49 HUDC Manual Vers 1 3 8 6 Displayed information in dive mode 8 6 1 Remaining no decompression time NDT NDT is the remaining no decompression time at the present depth It is calculated based on the amount of Nitrogen absorbed by hypothetical tissue compartments ZH L16C Buehlmann model 8 6 2 Tank pressure The tank pressure is shown as a bar graph and a numeric value on the left side of the display The graph and the numbers are changing color depending on the remaining pressure Green zone 110 bar Yellow zone 50 bar to 110 bar Red zone 25 bar to 50 bar Red blinking 25 bar ie Amm P m Tank pressure alarm 3500 Maximum depth 39 5m current depth 11 0m dive time 35 00min UN heading SW 235 battery OK remaining NDT 5min tank pressure 28bar ascent rate 1m min temperature 23 C O 2014 Seabear Diving Technology Graz Austria Page 37 of 49 HUDC Manual Vers 1 3 8 6 3 Ascent Descent rate bar graph The ascent rate is shown as a bar graph on the right side of the display The display shows the descent and the ascent rate The descent rate negative ascent rate is indicated from the top of the bar in blue Positive ascent rates are indicated from the bottom The color of the bar is changing depending on the ascent rate Blue zone descent rate bar graph Green zone lt 5m min Yellow zone 5m min to 10m min Red zone 10m min to 20m min Beginning of th
5. 5 Personal settings For additional safety four personal decompression settings can be set as Eric Baker gradient factors PSET 0 GF 30 80 preset value typical standard value PSET 1 GF 15 90 PSET 2 GF 80 80 PSET 3 GF 95 95 standard ZH L16C Buehlmann model with minimum conservatism O 2014 Seabear Diving Technology Graz Austria Page 46 of 49 HUDC Manual 12 6 Display surface mode Alphanumeric display 12 7 Time Date FO volume fraction of Oxygen content 96O Personal decompression setting 0 1 2 3 Gradient factors Tank pressure bar PSI Atmospheric surface pressure bar PSI Battery mV Menu item Display dive mode Alphanumeric display Maximum depth m ft Current depth m ft pOo lt 1 4 green pO 1 4to1 5 yellow pO 1 5to 1 7 red pO gt 1 7 red flashing Dive time min No decompression time indicator Remaining no decompression time NDT min Ceiling depth m ft Total time to surface min Compass 0 360 Tank pressure bar PSI Temperature C F 2014 Seabear Diving Technology Graz Austria Vers 1 3 Graphical indicators Battery indicator Green zone gt 3700 mV Yellow zone 3400 mV to3700mV Red zone lt 3400 mV Compass scale No Fly indicator Graphical Indicators Compass scale Battery indicator Green zone gt 3700 mV Yellow zone 3400 mV to3700mV Red zone lt 3400 mV Ascent Descent rate bar graph Blue Zone
6. Descent Rate Bar Graph Green Zone 5m min Yellow Zone 5m min to 10m min Red Zone 10m min to 20m min Tank pressure bar graph Green zone gt 110 bar Yellow zone 50 barto 110 bar Red zone 25 bar to 50 bar Red blinking 25 bar Ceiling indicator Page 47 of 49 HUDC Manual Vers 1 3 13 Limited warranty The warranty arrangements vary in different countries The Head Up Dive Computer packaging contains information regarding the warranty benefits and requirements applicable to your purchase 14 SEABEAR Limitation of Liability WITH THE PURCHASE OF THE HEAD UP DIVING COMPUTER YOU HEREBY AGREE TO THE FOLLOWING EXCLUSIONS AND LIMITATIONS OF SEABEAR S LIABILITY TO YOU YOU AGREE AND UNDERSTAND THAT SCUBA DIVING IS A HIGH RISK POSSIBLY LIFE THREATENING ACTIVITY AND THE USE OF THE HEAD UP COMPUTER IS IN NO WAY A SUBSTITUTE FOR PROPER SCUBA TRAINING AND CERTIFICATION BECAUSE OF THE NUMBER OF VARIABLES AND THE VARYING DEGREES TO WHICH THEY MAY AFFECT INDIVIDUALS ENGAGED IN SCUBA DIVING SEABEAR DOES NOT GUARANTEE THAT USE OF THIS PRODUCT WILL PREVENT DECOMPRESSION SICKNESS OR ANY OTHER CONDITION OR INJURY INCURRED WHILE USING THIS PRODUCT THESE INFLUENCING VARIABLES MAY INCLUDE BUT ARE NOT LIMITED TO DEHYDRATION OBESITY AGE OLD INJURIES OR OTHER PHYSICAL CONDITIONS ON THE PART OF THE DIVER OR ENVIRONMENTAL EXTREMES OF HEAT OR COLD OR POOR TRAINING OR DIVING PRACTICES ANY OF WHICH MAY PROMOTE THE ONSET OF DECOMPRESSION SICKNESS OR OTH
7. HUDC to the USB port via the USB cable gt Use the original HUDC USB interface cable and slide it into the socket of the HUDC Please ensure the correct positioning of the plug into the socket in order to have an electric contact between plug and socket gt Press and release the TOP button until USB MODE is displayed gt Pressing and releasing the SIDE button will select the menu item USB MODE and activate the USB interface gt Now the device will be recognized as a mass storage device and can be accessed by any file explorer from a computer gt Pressing and releasing the SIDE button will EXIT the menu and switch off the interface The USB mode is used for firmware upgrade and to access the logbook 2014 Seabear Diving Technology Graz Austria Vers 1 3 Fig 37 Fig 38 Page 26 of 49 HUDC Manual Vers 1 3 7 4 1 Firmware upgrade For the firmware upgrade you do not need any special software The memory of the HUDC is accessible from any computer via the USB port Files in the internal memory are handled and visualized like on a hard drive or a USB memory stick Connect the HUDC to a USB port and enter the USB mode as described before From your computer copy the supplied new firmware file to the HUDC Press and release the SIDE button to EXIT the menu and switch off the interface Switch off the computer as described below Then the display will bootload itself and the new firmware will become activ
8. menu al 13 A Press and release the TOP button until FO is displayed 029150 gt Pressing and releasing the SIDE button will step up the FO value continue pressing PF aT S and releasing the SIDE button till the right FO is on the display m To decrease the setting for the Oxygen fraction in a Nitrox mixture Press and release the TOP button to switch to the next menu item FO Repeated pressing and releasing the SIDE button will step down the FO value continue pressing and releasing the SIDE button till the right FO is on the display Fig 28 Before each Nitrox dive the FO setting of the dive computer must be verified and if necessary adjusted to match the fraction percentage of O in the Nitrox mix being used Diving with Nitrox requires special training and Nitrox certification O 2014 Seabear Diving Technology Graz Austria Page 22 of 49 HUDC Manual Vers 1 3 7 3 3 2 PSET personal settings For additional safety four personal decompression settings can be set Eric Baker gradient factors PSET 0 GF 30 80 preset value typical standard value PSET 1 GF 15 90 PSET 2 GF 80 80 PSET 3 GF 95 95 standard ZH L16C Buehlmann model with minimum conservatism PET GESS95 Do not use this setting under normal conditions This setting results in long no decompression limits and aggressive decompression schedules Use this setting only for emergency purposes Qon To go to the P
9. pressure sensor and the battery To mount the pressure transmitter first remove the high pressure port plug from the first stage regulator Then screw in the pressure transmitter gently by hand until you feel a minimum of resistance Use a suitable tool wrench to tighten it mm d Fig 5 Fig 6 Fig 7 NOTICE Do not twist the pressure transmitter forcefully by hand Use a proper tool to tighten the pressure transmitter Fig 8 Always close the tank pressure valve and depressurize your regulator before attempting to remove or connect the HUDC to the high pressure port Fig 8 O 2014 Seabear Diving Technology Graz Austria Page 10 of 49 HUDC Manual 4 2 Mounting the HUDC on a full face mask The mounting bracket for the HUDC consists of an adapter several ball joints and a clamp Disconnect the low pressure hose from the second stage regulator and slide the adapter over the thread of the regulator Fig 11 Reconnect the low pressure hose to the thread of the second stage regulator Use a suitable tool wrench to tighten it Fig 10 Slide the HUDC in the clamp Fig 12 and adjust the mounting bracket in a way that the display is comfortably placed in front of your visor O 2014 Seabear Diving Technology Graz Austria Vers 1 3 clamp ball joints adapter Fig 10 Fig 12 Page 11 of 49 HUDC Manual Vers 1 3 Adjust the ball joints of the mounting bracket in a comfortable posi
10. small battery symbol appearing on the display Additionally the battery voltage is displayed on the surface in mV A well charged battery has about 3800 to 4150 mV The battery symbol changes its color from green over yellow to red and flashing red according to the battery discharge level It is recommended to recharge the HUDC if the battery symbol is yellow or red If the voltage Fig 18 decreases to low level the battery symbol will flash red and the HUDC will shut off in a short period of time The battery has a lifetime of approximately 500 charging cycles which is typical for Lithium ion batteries If you need to replace the battery please contact your authorized Seabear Diving Technology service provider to replace it O 2014 Seabear Diving Technology Graz Austria Page 13 of 49 HUDC Manual Vers 1 3 5 Operating interfaces 5 1 Control buttons The HUDC is operated by means of two integrated piezo switches buttons These buttons are used to turn on and off the HUDC and to navigate through the menu The two buttons are located on the TOP and the right SIDE of the HUDC Fig 19 Throughout this manual the buttons will be referred to as the TOP button and SIDE button TOP button NEXT MENU ITEM This button is located on TOP of the housing The TOP button is used to activate the menu and to switch to the NEXT MENU ITEM SIDE button SELECT MENU ITEM This button is located on the opposite SIDE of the USB connect
11. 0 Compass Tilt compensated digital compass O to 360 Resolution 1 Maximum tilt and roll angle Up to 45 11 11 Battery Type rechargeable Lithium ion battery Rechargeable via USB or via the USB charger Charging time 8h Battery lifetime in operational mode approximately 15h Battery life in standby mode approximately 1 year O 2014 Seabear Diving Technology Graz Austria Vers 1 3 Page 44 of 49 HUDC Manual Vers 1 3 Note operating temperature affects the battery life at lower temperatures the battery life can decrease and the life of the battery will vary depending on the use of the HUDC The user cannot replace the battery Only an authorized Seabear Diving Technology service provider can replace the battery Failure to observe this leads to loss of warranty and any product related liability of Seabear Diving Technology 11 12 User interface Buttons two integrated piezo switches Audible alarms There are no audible alarms Display full color OLED display with 96x64 pixels Optics image in a virtual distance of 1m The image will appear in a virtual dimension of a 15 inch monitor in 1 m distance 11 13 Mechanical and material characteristics Pressure transmitter Weight approximately 86g Dimensions diameter 25 mm length 70mm Material of the housing black polycarbonates PC Head up display Weight approximately 60 g Dimensions width 35mm length 50mm height 70mm Material of the housing blac
12. 1 2 Operating conditions Operating altitude range 0 to 2 000 m above sea level Operating temperature 0 C to 40 C The dive computer can withstand use in water at temperatures below 10 C cold water Storage temperature 20 C to 50 C it is recommended to store the device in a dry place at room temperature Maximum depth 100m 330 ft Depth resolution 0 1m Max tank pressure 300 bar 11 3 Operating temperature Operating temperature range 10 to 50 C 11 4 Depth gauge Maximum depth of operation 100 m complying with EN 13319 Accuracy 1 of full scale at 20 C complying with EN 13319 Resolution 0 1 m from 0 to 100 m Integrated temperature compensation 11 5 Tank pressure sensor The tank pressure sensor is integrated in the pressure transmitter It is personal protective equipment as defined by the European Directive 89 686 CEE and complies with the specifications set by the harmonized European Standard EN 250 2000 O 2014 Seabear Diving Technology Graz Austria Page 43 of 49 HUDC Manual Rated working pressure 300 bar Display resolution 1 bar 11 6 Temperature measurement Measurement range 10 C to 50 C Temperature display Celsius C or Fahrenheit F Temperature sensor resolution 1 C 11 7 Memory Internal memory 64 Mbit Maximum total dive time 200 hours 11 8 Logbook Stored in the internal memory files file system mass storage accessible via USB 11 9 PC interface USB 11 1
13. 3 Recharge the battery when battery indicator is yellow or red If the red battery warning appears and the voltage decreases further during or right after a dive the HUDC will SHUT OFF In this situation the battery is completely discharged and the HUDC will lose the information of the Nitrogen loading in the tissues When this situation happens in between a series of repetitive dives the decompression schedule and the remaining no decompression time of following dives may be incorrect O 2014 Seabear Diving Technology Graz Austria Page 40 of 49 HUDC Manual Vers 1 3 9 Altitude 9 1 Flying after diving There is a NO FLY Indicator built in the computer If the NO FLY symbol is shown after starting up the HUDC you should not fly till the sign disappears Avoid flying any time the NO FLY indicator is displayed Always activate the computer in surface mode to check the NO FLY indicator Flying or traveling to a higher altitude within the no fly time increases the risk of DCS If the battery is completely discharged the HUDC will SHUT OFF In this situation the information about the Nitrogen loading in the tissues as well as the NO FLY information are reset and the information is lost 9 2 Altitude diving In the mountains the atmospheric pressure is lower than at sea level The HUDC uses the in built pressure sensor to measure the ambient pressure on the surface which is needed to perform an
14. ENDERING SERVICE UNDER THE LIMITED WARRANTY OR LOSS OF USE DURING THE TIME THE PRODUCT IS BEING REPAIRED YOU HEREBY IRREVOCABLY WAIVE AND RELEASE SEABEAR ITS ELECTED AND APPOINTED OFFICIALS EMPLOYEES VOLUNTEERS OR OTHERS WORKING ON BEHALF OF SEABEAR FROM ANY LIABILITY OR OBLIGATION TO YOU OR YOUR HEIRS EXECUTORS OR PERSONAL REPRESENTATIVES FOR ANY LOSS DAMAGE COST EXPENSE OR CLAIM ARISING OUT OF CAUSED BY OR RELATING TO YOUR PERSONAL INJURY OR DEATH WHILE DIVING EVEN IF YOUR PERSONAL INJURY OR DEATH IS CAUSED IN WHOLE OR IN PART AND DIRECTLY OR INDIRECTLY BY THE HEAD UP DIVING COMPUTER OR YOUR USE OF THE HEAD UP DIVING COMPUTER OR ARISING FROM BREACH OF THE WARRANTY BREACH OF CONTRACT NEGLIGENCE STRICT TORT OR ANY OTHER LEGAL OR EQUITABLE THEORY EVEN IF SEABEAR KNEW OR SHOULD HAVE KNOWN OF THE LIKELIHOOD OF SUCH DAMAGES AND REGARDLESS OF WHETHER OR NOT THE HEAD UP DIVING COMPUTER FUNCTIONED PROPERLY OR WAS DEFECTIVE IN ANY WAY YOU MUST READ AND ACCEPT THE AGREEMENT FOR ALL LIMITATIONS AND EXCLUSIONS OF SEABEAR S LIABILITY TO YOU ABE As er O 2014 Seabear Diving Technology Graz Austria Page 49 of 49
15. ER HARMFUL EFFECTS THE SEABEAR HEAD UP DIVING COMPUTER WAS TESTED ACCORDING TO RELEVANT NORMATIVES EN13319 AND EN250 AND WAS EVALUATED IN NUMEROUS TEST DIVES HOWEVER THERE MAY STILL BE ERRORS IN THE SOFTWARE THAT WERE NOT IDENTIFIED YET AND THAT MAY LEAD TO MALFUNCTIONS OF THE HEAD UP DIVE COMPUTER THEREFORE SEABEAR SUGGESTS ALWAYS TO CARRY AND USE A BACKUP DIVE COMPUTER OR A DIVE TABLE IN COMBINATION WITH A DEPTH GAUGE AND A WATCH YOU AGREE THAT YOU UNDERSTAND AND ACCEPT ALL RISKS ASSOCIATED WITH DIVING AND THAT SEABEAR ITS ELECTED AND APPOINTED OFFICIALS EMPLOYEES VOLUNTEERS OR OTHERS WORKING ON BEHALF OF SEABEAR ARE NOT LIABLE TO YOU OR ANY OTHER PERSON INCLUDING YOUR HEIRS EXECUTORS OR PERSONAL REPRESENTATIVES FOR ANY LOSS DAMAGE COST EXPENSE OR CLAIM ARISING OUT OF CAUSED BY OR RELATING TO YOUR PERSONAL INJURY OR DEATH WHILE DIVING EVEN IF YOUR PERSONAL INJURY OR DEATH IS CAUSED IN WHOLE OR IN PART AND DIRECTLY OR INDIRECTLY BY THE PURCHASE OF THE HEAD UP DIVING COMPUTER OR YOUR USE THEREOF OR ARISING FROM BREACH OF THE WARRANTY BREACH OF CONTRACT NEGLIGENCE STRICT TORT OR ANY OTHER LEGAL OR EQUITABLE THEORY EVEN IF SEABEAR KNEW OR SHOULD HAVE KNOWN OF THE LIKELIHOOD OF SUCH DAMAGES AND REGARDLESS OF O 2014 Seabear Diving Technology Graz Austria Page 48 of 49 HUDC Manual Vers 1 3 WHETHER OR NOT THE HEAD UP DIVING COMPUTER FUNCTIONED PROPERLY OR WAS DEFECTIVE IN ANY WAY SEABEAR SHALL NOT BE LIABLE FOR DELAY IN R
16. OP button to switch to the next menu item MINUTES gt Repeated pressing and releasing the SIDE button will step up the MINUTES value continue pressing and releasing the SIDE button till the right minute is on the display Press and release the TOP button to EXIT the menu the SET TIME procedure is finished there is no further menu item so the user exits the menu and the time is stored O 2014 Seabear Diving Technology Graz Austria Page 20 of 49 HUDC Manual 7 3 2 Vers 1 3 SET DATE The actual date can be set in the sub menu SET DATE To go to the SET DATE menu you have to be in the SETTINGS menu l SET DATE l __YEAR stepping up the year YEAR Stepping down the year M MONTH Stepping up the month 1 12 Az 2 D 1l ___DAY stepping up the day 1 31 GF 3 I iil Press and release the TOP button until SET DATE is displayed Pressing and releasing the SIDE button will select the menu item SET DATE Pressing and releasing the SIDE button will select the setting YEAR Repeated pressing and releasing the SIDE button will step up the YEAR value continue pressing and releasing the SIDE button till the right YEAR is on the display Press and release the TOP button to switch to the next menu item YEAR Repeated pressing and releasing the SIDE button will step down the YEAR value continue pressing and releasing the SIDE button till the right YEAR is on the display Press and r
17. Personal decompression setting 0 1 2 3 Compass scale GF gradient factors Tank pressure bar PSI Atmospheric surface pressure bar PSI Battery mV Menu item Atmospheric surface pressure Time Battery in mV Date Battery Indicator FO volume fraction of Oxygen 96O d Compass scale Personal decompression setting Gradient factors Menu item Tank pressure Fig 21 O 2014 Seabear Diving Technology Graz Austria Page 16 of 49 HUDC Manual Vers 1 3 6 2 Dive mode display Alphanumeric display Graphical indicators Maximum depth m ft Compass scale Current depth m ft Battery Ceo 4100 mV Divetime mi XE cm No decompression time indicator Red zone 3400 mV Remaining no decompression time NDT min Ascent descent rate bar graph Ceiling depth m f us uds Time to surface min Yellow zone 5m min to 10m min Compass 0 360 Red zone 10m min to 20m min Tank pressure bar PSI i Tank Aka gar graph Temperature C F Yellow zone 50 bar to 110 bar Red zone 25 bar to 50 bar Red blinking 25 bar Ceiling indicator Maximum depth Compass in Current depth Battery indicator NDT indicator Dive time Remaining no decompression time Compass scale Time to surface Tank pressure graph Ascent rate graph Ceiling depth Tank pressure Temperature Ceiling indicator Fig 22 Display NO decompression dive mode Fig 23Display decompression di
18. SET setting you have to be in the SET DIVE menu Jol gt Press and release the TOP button until PSET is displayed gt Repeated pressing and releasing the SIDE button will toggle the PSET Value between 0 1 2 3 gt Continue pressing and releasing the SIDE button till the right PSET is on the display gt Press and release the TOP button to switch to the next menu item EXIT and save the PSET value Fig 29 1 3 3 3 EXIT r TN E i a b QN M E t To go to the EXIT item you have to be in the SET DIVE menu 2013 02 28 gt Pressing and releasing the SIDE button when EXIT is displayed will deactivate the 02 21 xil menu GF 30 50 Nu DE Fig 30 O 2014 Seabear Diving Technology Graz Austria Page 23 of 49 Vers 1 3 HUDC Manual 7 3 4 COMPASS During the calibration process the compass adjusts itself to the surrounding magnetic field and to tilting In the menu COMPAS you can calibrate the compass COMPASS To go to the COMPAS calibration you have to be in the SETTINGS menu Press and release the top button until COMPASS is displayed gt gt Pressing and releasing the SIDE button will select the COMPAS calibration gt Start with the calibration process Fig 31 The calibration of the 3 axial compass requires 3 simple steps Fig 32 33 and 34 During each step the HUDC is rotated around one axis note the rotation axis in Fig 33 should be horizontal Rotate the HUDC at least 3 times in each position like depic
19. T setting the actual time setting the actual date setting parameters for diving calibrating the compass changing between metric and imperial units exit the sub menu back to main menu To go to the SETTINGS menu you have to be in the MAIN MENU Press and release the TOP button until SETTINGS is displayed Pressing and releasing the SIDE button will select the menu item SETTINGS O 2014 Seabear Diving Technology Graz Austria Vers 1 3 Page 19 of 49 HUDC Manual Vers 1 3 gt Repeated pressing and releasing of the TOP button will toggle in the SETTINGS menu between SET TIME SET DATE SET DIVE COMPASS SET UNITS EXIT gt If no button is pressed for a period of 15 seconds the menu will be deactivated 7 3 1 SET TIME The actual time can be set in the sub menu SET Time l SET TIME HOUR Stepping up the hour 0 23 IM ___ MINUTES Stepping up the minutes 0 59 hu em GF 30 80 To go to the SET TIME menu you have to be in the SETTINGS menu gt Press and release the TOP button until SET TIME is displayed gt Pressing and releasing the SIDE button will select the menu item SET TIME gt Pressing and releasing the SIDE button will select the setting HOUR gt Repeated pressing and releasing the SIDE button will step up the HOUR value continue pressing and releasing the SIDE button till the right hour is on the display gt Press and release the T
20. automatic altitude adaptation of the decompression algorithm As a result the allowed no decompression stop limits are considerably reduced O 2014 Seabear Diving Technology Graz Austria Page 41 of 49 HUDC Manual Vers 1 3 10 Care and maintenance You should protect your HUDC from shock excessive temperatures chemicals and mechanical tampering Take care of the lens of the HUDC and avoid scratches NOTICE NOTICE During transportation protect your HUDC from mechanical shock and excessive temperatures Never try to open the pressure transmitter or the display of the HUDC The HUDC should be inspected for mechanical damage and cracks before and after each dive to ensure it is working properly An authorized Seabear Diving Technology dealer should inspect the HUDC annually Failure to observe the above precautions leads to loss of warranty and any product related liability of Seabear Diving Technology 2014 Seabear Diving Technology Graz Austria Page 42 of 49 HUDC Manual Vers 1 3 11 Technical specifications 11 1 Intended use The intended use of this instrument is to measure calculate and display dive relevant information for divers using a head up display It has a built in temperature tank pressure and ambient pressure sensor and a compass The values are calculated from a microprocessor and displayed for the user on a head up display It cannot be used as a standalone depth gauge or watch 1
21. battery OK remaining NDT 7min tank pressure 51bar ascent rate 1m min temperature 23 C Fig 43 8 4 Decompression dives Seabear Diving Technology strongly advises against any dives that require decompression stops You should ascend and begin decompression immediately after the dive computer shows you that a decompression stop is required A decompression dive is a dive when the NDT becomes zero and the display changes into the decompression dive mode display According to decompression models you must perform one or more decompression stops on your way to the surface The ceiling indicator the ceiling depth and the total time to surface will replace the NDT indicator and the remaining no decompression time Ceiling may clear during a slow ascent even without making decompression stops During a decompression dive the following information is displayed decompression dive mode display Maximum depth in m ft Compass scale Current depth in m ft Compass in Dive time the duration of the dive in min Tank pressure in bar PSI Ceiling indicator Tank pressure presented as a bar graph Ceiling depth Temperature Total time to surface in min Ascent rate presented as a bar graph on the right side Battery indicator presented as an icon changing the color depending on the discharging condition O 2014 Seabear Diving Technology Graz Austria Page 32 of 49 HUDC Manual Vers 1 3 The ceiling indica
22. breathing mix at the same depth Oxygen can have toxic effects on the human body Be aware of Oxygen toxicity effects when using Oxygen enriched gas mixtures The color of the displayed depth indicates the Oxygen partial pressure and the maximum operating depth MOD Color of the displayed depth pO lt 1 4 green pO 1 4 to 1 5 yellow pO 1 5 to 1 7 red POST ues red flashing gt gt gt gt WARNING MOD and pO indicated by changing the color of the depth pO lt 1 4 at 27 1m pO 1 4 to 1 5 at 35 2m pO 1 4000 LE 5 to 1 7 at 39 0m pO gt gt 1 7 at 44 9m 130 0 a gt ME Fig 47 Fig 48 Fig 50 Fig 49 O 2014 Seabear Diving Technology Graz Austria Page 35 of 49 HUDC Manual Vers 1 3 If the color of the depth measurement changes from green to yellow you should ascent to a depth where the color is green If the color is red or red flashing there is a high risk of Oxygen toxicity You should immediately ascend to a shallower green depth The HUDC does not track the time and intensity of the Oxygen exposure and does not provide the diver with information about Oxygen exposure within reasonably safe limits These have to be assessed by the diver himself and on his own responsibility The use of Nitrox requires special training Do not attempt to dive with any gas mix other than standard air without first receiving special training O 2014 Seabear Diving Technology
23. connect the HUDC to a USB port of a personal computer 6 Operating modes The HUDC has three operating modes standby surface and dive mode Standby mode The display of the HUDC is switched off and the microprocessor operates in a power saving state A fully charged battery lasts up to 1 year in standby mode Surface mode The surface mode is used to navigate in the menu to adjust the settings to activate the USB MODE and to switch off the HUDC The surface mode is activated after switching on the computer with one of the buttons If the HUDC is not used for 5 minutes and the pressure transmitter is depressurized the HUDC switches to standby mode to save battery power Dive mode The dive mode is automatically activated following immersion in water and after reaching a depth of one meter There is a display for a no decompression dive mode and a display for a decompression dive mode NOTICE O 2014 Seabear Diving Technology Graz Austria Page 15 of 49 HUDC Manual Vers 1 3 Switching the HUDC on underwater may lead to incorrect measurement of the atmospheric pressure on the surface which may lead to incorrect depth readings and faulty decompression calculation 6 1 Surface mode display Alphanumeric display Graphical indicators Time Battery indicator 3300 4100 mV A Date Green zone gt 3700 mV Yellow zone 3400 mV to3700mV FO volume fraction of Oxygen content 96O Redzone lt 3400 mV
24. e vvvvv Visit our webpage in regular intervals to download the latest firmware release and the manual Upgrading the firmware resets decompression tissue loading and time Plan repetitive dives accordingly and reset the time NOTICE O 2014 Seabear Diving Technology Graz Austria Page 27 0f 49 HUDC Manual Vers 1 3 7 4 2 Diving logbook The HUDC has a very simple but sophisticated logbook built in This logbook is stored in the internal memory and is accessible over the USB port like a memory stick The internal memory will retain approximately the last 200 hours of dive time To access the data see section 7 4 USB MODE 7 4 3 Standby mode In the menu OFF you can switch the HUDC to the standby mode 152 23 980 2150 GF 30 80 To go to the OFF menu you have to be in the MAIN MENU da gt Press and release the TOP button until OFF is displayed gt Pressing and releasing the SIDE button will select the menu OFF of the HUDC O 2014 Seabear Diving Technology Graz Austria Page 28 0f 49 HUDC Manual Vers 1 3 8 Diving with HUDC 8 1 Before diving Switch on the HUDC before diving and make all necessary settings on the surface Under water you do not have any more the opportunity to change these values Check the HUDC for damages before diving Before entering the water check on the surface screen battery level personal settings FO NITROX setting FO setting matches the used gas tank pr
25. e dive descent rate 12m min no deco dive Maximum depth 9 5m current depth 9 5m dive time 3 05min heading NE 55 battery OK remaining NDT 99min tank pressure 205bar descent rate 12m min temperature 24 C Fig 52 Ascent rate 10m min no deco dive Maximum depth 39 5m current depth 19 2m dive time 20 50min heading NW 317 battery OK remaining NDT 15min tank pressure 62bar ascent rate 9m min temperature 19 C Fig 53 DJ O 2014 Seabear Diving Technology Graz Austria Page 38 0f 49 HUDC Manual Vers 1 3 Do not exceed the maximum ascent rate of 10 m min Rapid ascents increase the risk of injury Besides the decompression stops there are no additional mandatory safety stops or error messages displayed when the decompression ceiling and time or the recommended ascent rate are violated No lock out mechanisms or error modes are implemented in the HUDC 8 6 4 Battery indicator The battery indicator icon is located in the right upper corner of the display Green zone gt 3700 mV Yellow zone 3400 mV to3700mV Red zone lt 3400 mV 35 Battery and tank pressure alarm end of dive no deco dive OO Maximum depth 39 5m current depth 11 m dive time 35 00min Sim a heading SW 235 battery alarm remaining NDT 5min tank pressure 28bar ascent rate 1m min temperature 23 C Fig 54 O 2014 Seabear Diving Technology Graz Austria Page 39 of 49 HUDC Manual Vers 1
26. elease the TOP button to switch to the next menu item MONTH Repeated pressing and releasing the SIDE button will step up the MONTH value continue pressing and releasing the SIDE button till the right MONTH is on the display Press and release the TOP button to switch to the next menu item DAY Repeated pressing and releasing the SIDE button will step up the DAY value continue pressing and releasing the SIDE Button till the right DAY is on the display Press and release the TOP button to EXIT the menu the SET DATE procedure is finished there is no further menu item so the user exits the menu and the date is stored O 2014 Seabear Diving Technology Graz Austria Page 21 of 49 HUDC Manual Vers 1 3 7 3 3 SET DIVE The settings for diving can be personalised in the sub menu SET DIVE 13 2 i F E gon SET DIVE an FO2 stepping up the FO2 value 20 50 vl ZE f FO2 stepping down the FO2 value 20 50 c c I I PSET stepping up the PSET value 0 3 SF30 50 EXIT EXIT lO E To go to the SET DIVE menu you have to be in the SETTINGS menu gt Press and release the TOP button until SET DIVE is displayed Fig 27 Pressing and releasing the SIDE button will select the menu item SET DIVE 7 3 3 1 FO adjusting volume fraction of Oxygen content E 4365 52 To increase the setting for the Oxygen fraction in a Nitrox mixture n n 5 3 To go to the FO2 setting you have to be in the SET DIVE
27. essure ok correct time and date units Before each dive check the battery power and recharge the battery if necessary Recharge the battery when the computer has not been used for a long time Low temperatures can affect battery performance Take special attention to the charge level of the battery during cold water dives Before each dive you must verify if the settings displayed by the HUDC correspond to the used gas and the desired personal settings Before each Nitrox dive the FO2 set points of the dive computer must be verified or set to match the percentage of Oxygen in the Nitrox mix being used By setting incorrect Oxygen concentrations there is an inherent risk of decompression sickness and or Oxygen toxicity O 2014 Seabear Diving Technology Graz Austria Page 29 of 49 HUDC Manual Vers 1 3 Make sure you have correctly set the units you are familiar with An incorrect setting may be confusing 8 2 Dive mode activation If the HUDC is switched on and is in surface mode it automatically switches to dive mode by immersion in water and after reaching a depth of one meter It is highly recommended that the HUDC is switched on before entering the water to avoid wrong measurements and calculations Do not switch on the HUDC underwater This can lead to incorrect surface pressure measurement and further incorrect depth and decompression calculations In dive mode the buttons are deactivated All necessary di
28. g the HUDC in an optimal position in front of your half or full face mask The full color display shows you all the necessary dive related information like tank pressure current depth current time elapsed dive time water temperature decompression times ascent rate and has a build in tilt compensated digital compass The relevant data depth time decompression obligations tank pressure are stored in the internal flash memory The data can be read out via USB port which is also used to charge the built in rechargeable battery Fig 1 The HUDC is a near eye true hands free dive computer Due to the close vicinity of the HUDC to the visor the HUDC can still be read in very low visibility conditions e g silt out where reading of a normal wrist worn dive computer is often impossible Fig 3 Fig 4 O 2014 Seabear Diving Technology Graz Austria Page 5 of 49 HUDC Manual Vers 1 3 2 Safety considerations Before using the Head Up Dive Computer you must read and understand the information provided in this manual in its entirety Be aware that diving has many inherent risks A dive computer considerably increases your diving safety but it does not eliminate the remaining risk for serious injury or death caused by decompression sickness Oxygen toxicity or some other inherent risk of scuba diving Do not use this HUDC if you are not aware of these risks and you do not accept these remaining risks In this manual the following
29. k polycarbonate PC Material of the clamp black polyoxymethylene POM O 2014 Seabear Diving Technology Graz Austria Page 45 of 49 HUDC Manual Vers 1 3 12 Functional specifications 12 1 Oxygen concentrations Nitrox Oxygen concentration is adjustable between 20 and 50 Op 12 2 Altitude correction The HUDC has a built in automatic altitude correction gauge Ambient pressure is measured on the surface when the dive computer is switched on It is recommended to switch the dive computer on before entering the water and when the tank is turned on 12 3 Decompression model ZH L16C Buehlmann model 16 Tissue compartments Gradient factors Ceiling and time to surface are displayed No Fly indicator 12 4 Activation Deactivation Surface Mode The Surface mode can be entered with any button Dive mode If in surface mode the HUDC automatically switches to dive mode when immersed in water and after reaching a depth of one meter Standby mode An automatic standby mode is implemented to reduce power consumption The HUDC enters standby mode when the tank pressure sensor is depressurized and the HUDC was not used for 5 min In this case there is no loss of information about the Nitrogen loading in the tissues SHUT OFF If the battery is completely discharged the HUDC will SHUT OFF In this situation the information about the Nitrogen loading in the tissues as well as the No FLY indication are reset and the information is lost 12
30. n your own responsibility Safety stop shall be made between 6 and 3meters It is strongly recommended to perform safety stops as a standard procedure before completing your dive The HUDC should never be shared between differed divers Use always the same HUDC for repetitive dives There is an in built memory that keeps track of a diver s diving history Changing the HUDC in between a series of repetitive dives may result in incorrect decompression calculations Should the HUDC fail you should immediately abort the dive by using a diving table or a back up dive computer If a reset of the HUDC occurs for instance after a software update information about tissue tensions from previous dives will be lost When this situation happens in between a series of repetitive dives the decompression schedule and the remaining no decompression time for the following dives may be incorrect Do not fly or travel to high altitudes while the NO FLY indication remains active Flying while the HUDC displays NO FLY can result in serious injury or death If you do not perform the proposed decompression stops a flashing sign will indicate a ceiling to which you should ascend If you still ignore these warnings there is NO additional ERROR OR LOCKOUT Do not ignore these warnings decompression stops must be done for your own safety and on your own responsibility For safety reasons you should always dive with backup instruments including a depth gauge pres
31. or The SIDE button is used to select the DISPLAYED MENU ITEM Keep this logic in mind when navigating through the menu 5 2 Activation and deactivation of the HUDC To switch on the device press one of the two buttons After the welcome screen the display shows the surface mode screen allowing you to navigate within the menu with the two buttons The buttons are only active in surface mode Underwater the buttons are deactivated The HUDC switches off automatically after some minutes if the diver is on the surface and the tank pressure is less than 15 bar Alternatively it is possible to switch off the HUDC manually see chapter 7 2 O 2014 Seabear Diving Technology Graz Austria Page 14 of 49 HUDC Manual Vers 1 3 5 3 Optic and display interface The full color OLED display is viewed through a bright optical system The design of the optical system allows the user to see the image of the display in a virtual distance of one meter from the eye The display will appear in a virtual dimension of a15 inch monitor in one meter distance The HUDC display is readable in a wide range of ambient light conditions Shading may be required only in direct sunlight on the surface The HUDC is a true hands free dive computer and due to the close vicinity to the visor of the diver it can be read even in very low visibility and silt out situations 5 4 PC interface The HUDC is equipped with a USB port The USB charging cable is used to
32. precautionary symbols are used to indicate the following important precautionary statements Those statements provide information on potential hazards and proper procedures Three differently safety Signs are used to indicate their importance red stands for vital information which shall not be ignored under any circumstances yellow advises for caution blue indicates technical or other recommendations for safe and reliable operation of the device WARNING statements describe potentially hazardous situations if not avoided could result in death or serious injury Avoid these situations under any circumstances CAUTION indicates a hazardous situation which if not avoided could result in minor or moderate injury NOTICE statements are used to notify the user of information regarding installation operation maintenance NOTICE performance general tips that are important or statements describing a procedure or situation that might cause damage to the device but is unrelated to physical injury O 2014 Seabear Diving Technology Graz Austria Page 6 of 49 HUDC Manual Vers 1 3 3 Warnings cautions notes 3 1 Warnings Before using the HUDC read the manual and get familiar with all the functions of the device Divers must have successfully completed a course in scuba diving They must have knowledge about the potential risks and hazards of scuba diving The risk from decompression sickness DSC or Oxygen toxicity for any dive p
33. rofile even if you follow dive tables or a dive computer cannot be totally eliminated This risk also depends on the individual diver s physiological condition which can vary from day to day The HUDC cannot account for these variations We strongly advise you to stay within the exposure limits provided by the instrument to minimize the risk of DCS Before diving you should consult a physician regarding your fitness to dive We strongly recommend diving within the recreational limits to limit your maximum depth to 40 m and to limit the pO to a maximum of 1 4 bar Exposure to greater depths or pO increases the risk of Oxygen toxicity and or decompression sickness Diving beyond the recreational limits may greatly increase your risk of decompression sickness Diving should not be undertaken without obtaining the necessary training from a recognized training agency The HUDC is designed for Nitrox with Oxygen content from 20 to 50 It is NOT designed for mix gas diving Do not ignore warning signs and indicators on the HUDC as this may result in serious injuries and can be even lethal Be aware of Nitrogen narcosis this cannot be indicated on this computer there are no warnings O 2014 Seabear Diving Technology Graz Austria Page 7 of 49 HUDC Manual Vers 1 3 The HUDC can be only used with open circuit breathing systems The HUDC does not indicate any safety stops Safety stops must be done according to your own planning and o
34. sure gauge dive watch or a backup dive computer and have access to decompression tables while planning your dive with the HUDC If you do not fully understand how to use the HUDC or if you have any questions contact your instructor or your authorized Seabear Diving Technology dealer before diving with it O 2014 Seabear Diving Technology Graz Austria Page 8 of 49 HUDC Manual Vers 1 3 3 2 NOTICE regulator ensure that the pressure transmitter is not damaged NOTICE Ensure that there is no water or moisture inside the device as well as in the high pressure port HP This may seriously damage the unit Never lift or carry your cylinder by holding the pressure transmitter If there is a mechanical shock on the pressure NOTICE transmitter e g if your cylinder falls on the side with the pressure transmitter attached to the first stage of the NOTICE Do not disassemble or remodel any cable or connectors Use only the original USB cable supplied with the HUDC Check compatibility before use Use only a clean and dry USB cable Clean and dry the connector surfaces of the cable as well as the connector on NOTICE the HUDC before each use to prevent damage of the HUDC in particular to avoid corrosion of the USB connector contacts 2014 Seabear Diving Technology Graz Austria Page 9 of 49 Vers 1 3 HUDC Manual 4 Mounting the device 4 1 Mounting the pressure transmitter The pressure transmitter contains a tank
35. ted in the figures Test if the compass is working otherwise repeat the calibration Fig 33 Fig 34 Page 24 of 49 2014 Seabear Diving Technology Graz Austria HUDC Manual 7 3 5 SET UNITS In the menu SET UNITS the units can be changed from imperial to metric Temperature C F Pressure bar PSI Length m ft E SET UNITS m bar ft PSI To go to the SET UNITS you have to be in the SETTINGS menu y y 7 3 6 Press and release the TOP button until SET UNITS is displayed Pressing and releasing the SIDE button will select the SET UNIT item Repeated pressing and releasing the TOP button will toggle in the SET UNIT m bar metric and ft PSI imperial If you want to set the HUDC to metric mode press and release the SIDE button when m bar is displayed If you want to set the HUDC to imperial mode press and release the SIDE button when ft PSI is displayed EXIT From the EXIT menu you can exit the menu l EXIT You can access the EXIT menu from the SETTINGS menu y Pressing and releasing the SIDE button will deactivate the menu 2014 Seabear Diving Technology Graz Austria Vers 1 3 02 2150 GF 30 60 Fig 35 SAEI GF 30 80 Page 25 of 49 HUDC Manual 7 4 USB MODE In the menu USB Mode the USB interface can be activated USB MODE l l EXIT USB To go to the USB MODE menu you have to be in the MAIN MENU gt Connect the
36. tion so that the screen falls in the field of your vision once the mask is properly donned A slight readjustment underwater might be necessary to account for the optical diffraction index of water The HUDC is compatible with many models of a full face masks Fig 13 14 Fig 14 4 3 Mounting the HUDC on a second stage regulator The assembly is done in the same way as the assembly of the HUDC on a full face mask There is no limitation on the type of the second stage regulator for mounting the device Fig 15 Fig 15 4 4 Adjusting the length of the mounting bracket The length of the mounting bracket can be adjusted by removing or adding some ball joints Fig 16 17 You have to exert little force to remove a ball joint or to snap them together Do not use lubrication on the ball joints Fig 16 Fig 17 O 2014 Seabear Diving Technology Graz Austria Page 12 of 49 HUDC Manual Vers 1 3 4 5 Battery The HUDC is equipped with a rechargeable Lithium ion battery The battery is charged over the USB in approximately 8 hours NOTICE Before your fist dive recharge the battery Use the original HUDC USB interface cable and slide it in the socket of the HUDC as shown in Fig 18 Make sure to position the plug correctly into the socket in order to ensure good electric connection A fully charged battery will last for approximately 25 diving hours The condition and the charging level of the battery are indicated with a
37. tor is an upward pointing arrow to prompt you to start your ascent If you are in the decompression mode display the HUDC will provide the decompression information required for ascent and the additional standard information as shown above The decompression model used in the HUDC calculates all necessary information like decompression stops and time and is also capable of calculating continuous decompression while you continue your ascent The ceiling depth is the shallowest depth to which you should ascend At this depth or below you must perform the decompression stops Going deeper than the required ceiling depth will increase your time to surface The total time to surface TTS is the time it takes to perform the ascent from your current depth to the surface in a decompression dive including all decompression stops and assuming an ascent rate of 10 m min Going deeper than the required ceiling depth will increase your total time to surface Do not violate the ceiling depth during your decompression In order to avoid doing so by accident you should stay slightly below the ceiling depth Besides the decompression stops there are no additional mandatory safety stops or error messages displayed when the decompression ceiling and time or the recommended ascent rate are violated O 2014 Seabear Diving Technology Graz Austria Page 33 of 49 HUDC Manual Vers 1 3 Fast ascend warning for coming up decompression stop at 9 m Maxim
38. um depth 39 5m current depth 20 1m dive time 55 00min heading SE 145 battery OK decompression stop required at a ceiling of 9 m total time to surface 5min tank pressure 62 bar ascent rate 13m min temperature 19 C Fig 44 Decompression stop at 9m OK Maximum depth 39 5m current depth 9 5m dive time 58 00min heading SE 145 battery OK decompression required at a ceiling of zr total time to surface 3min tank pressure 55bar ascent rate 1m min temperature 19 C Decompression stop at 6 m decompression violated FLASHING Maximum depth 39 5m current depth 4 1m dive dime 59 00min heading SE 145 battery OK decompression required at a ce m total time to surface 3min tank pressure 52 bar ascent rate Om min temperature 19 C Fig 46 2014 Seabear Diving Technology Graz Austria Page 34 of 49 HUDC Manual Vers 1 3 8 5 Nitrox The term Nitrox is used to describe breathing gases made of gas mixture with Oxygen percentage higher than 21 The Oxygen content of the gas is adjusted in the SETTINGS menu as described above in part 7 3 3 1 FO adjusting volume fraction of Oxygen content Diving with Nitrox provides the diver with an opportunity to increase bottom times and or reduce the risk of decompression sickness by reducing the Nitrogen content in the breathing gas mixture However the increase in Oxygen concentration in Nitrox implies an increase in Oxygen partial pressure pO in the
39. ve mode O 2014 Seabear Diving Technology Graz Austria Page 17 of 49 HUDC Manual Vers 1 3 7 Menus settings and functions 7 1 Menu structure SETTINGS SET TIME HOUR I MINUTES SET DATE YEAR YEAR MONTH DAF gt Use the TOP i h l i se the button to activate the menu and SET DIVE switch to the NEXT MENU ITEM FO2 I FO2 gt Use the SIDE button to confirm the J PSET SELECTED MENU ITEM EXIT COMPASS SET UNITS m bar ft PSI EXIT USB MODE EXIT USB OFF NOTICE 2014 Seabear Diving Technology Graz Austria Page 18 of 49 HUDC Manual 7 2 MAIN MENU The MAIN MENU has three items SETTINGS setting parameters time date and calibration of the compass USB MODE selecting the USB mode for data access and transfer OFF deactivation of the HUDC and entering into standby mode To go to the MAIN MENU you have to be in the surface mode Pressing and releasing the TOP button will activate the main menu Repeated pressing and releasing the TOP button will toggle in the MAIN MENU between SETTINGS USB MODE OFF If no button is pressed for a period of 15 seconds the menu will be deactivated T 3 SETTINGS The sub menu SETTINGS has 6 items l l SETTINGS l l l l l l l l l l SET TIME SET DATE SET DIVE COMPASS SET UNITS EXI
40. ve related information is displayed and automatically adapts to the diving situations O 2014 Seabear Diving Technology Graz Austria Page 30 of 49 HUDC Manual Vers 1 3 8 3 No decompression dives During a no decompression dive the following information is displayed NO decompression dive mode display Maximum depth in m ft Remaining no decompression time NDT in min Current depth in m ft Tank pressure in bar PSI Dive time the duration of the dive in min Tank pressure presented as a bar graph Compass in Temperature Compass scale Ascent rate presented as a bar graph on the right side Battery indicator presented as an icon changing the color depending on the discharging condition Beginning of the dive all parameters in the green value Maximum depth 5 1m current depth 5 1m dive time 3 05min heading NE 55 battery OK remaining NDT 99min tank pressure 205 bar descent rate 10m min temperature 24 C Fig 41 After reaching maximum depth and fast ascend to the surface Maximum depth 39 5m current depth 25 1m dive time 20 50min heading SE 145 battery OK remaining NDT 15min tank pressure 62bar ascent rate 12m min temperature 19 C Fig 42 O 2014 Seabear Diving Technology Graz Austria Page 31 of 49 HUDC Manual Vers 1 3 Before reaching the surface no deco dive Bow 3500 Maximum depth 39 5m current depth 12 0m dive time 35 00min SMT heading SW 235
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