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39

QuantumX Owner's Manual

Safety Stop

Whenever you make a dive deeper than 
10m/33ft., then ascend above 6m/20 ft., the 
QuantumX will display a three minute safety 
stop countdown. Ignoring the safety stop will not 
penalize you, however, it is highly recommended 
that you perform the complete three minute 
safety stop before surfacing from the dive.

a.

 

Safety stop time:

 Safety stop time is shown 

in min:sec. It starts at 3:00 and counts down 
to 0:00. If you descend below 6m/20ft., 
the countdown is paused until you ascend to 6m/20ft. If you descend below 
10m/33ft., the safety stop will reset to 3:00 when you return to 6m/20 ft.

b.

 

Safety stop alert:

 Displayed above the current depth to alert you that you 

should perform a safety stop.

Safety Stop Display

a

b

Summary of Contents for QuantumX

Page 1: ...Owner s Manual ...

Page 2: ... the Surface 8 The Push Buttons 8 Time Display Mode pre dive 10 Backlight 12 Low Battery Indicator 12 Time Display Mode post dive 13 Wait to fly Guidelines 14 Compass Mode 15 Dive Settings Mode 18 Plan Mode 24 Logbook Mode 25 Profile Mode 28 History Mode 30 PC Transfer Mode 31 ...

Page 3: ...o decompression Dive Mode 36 Primary Display 36 Alternate Displays 38 Safety Stop 39 Switching Nitrox Mixes 40 Decompression Dive Mode 41 Deep Stops 42 Summary of Warnings and Alarms 43 FO2 Warning 43 Fast Ascent Warning 43 PO2 Warnings 44 No decompression limit warning 45 Decompression Stop Violation Warning 45 Oxygen Limit Warnings 46 Out of Range Warning 47 ...

Page 4: ...utton 50 CARE MAINTENANCE 51 Care before the dive 51 Care during the dive 51 Care after the dive 52 Changing the Battery 52 TECHNICAL SPECIFICATIONS 56 Accuracy 56 Measurement Range 56 Nitrox Settings 57 Operational Limits 57 Battery 57 Physical Dimensions 58 Algorithm 58 ...

Page 5: ...ss or some other inherent risk of SCUBA diving Unless you are fully aware of these risks and are willing to personally accept and assume responsibility for those risks do not use the QuantumX dive computer The QuantumX or any other dive computer does not actually monitor changes that occur in your body as you dive Rather it is performing calculations using algo rithms developed by leading decompre...

Page 6: ... the QuantumX will not prevent decompression sickness but using it sensibly reduces this risk You must accept that there is no device or procedure that will totally prevent the possibility of a decompres sion accident ...

Page 7: ... this manual are illustrations to aid you in understanding the computer Section 1 instructs you on how to navigate through the QuantumX s surface modes Section 2 describes all the underwater displays and functions while diving with the QuantumX Lastly Section 3 covers care maintenance This manual will clearly and concisely instruct you on the use of the QuantumX However if you have any questions o...

Page 8: ...ton is explained throughout this manual The Mode Button All the surface functions are accessed by pressing the MODE button The QuantumX has nine surface modes TIME DATE COMPASS DIVESET PLAN LOGBOOK PROFILE HISTORY PC PC download and TIMESET see opposite page Pressing the MODE button scrolls through the nine modes As you scroll through the modes the first screen of each mode is displayed In this se...

Page 9: ...9 QuantumX Owner s Manual Sequence of the nine modes 1 Time Date Home 2 Compass 3 Dive Set 4 Plan Mode 5 Logbook 7 History 8 PC Download 9 Set Time Date ...

Page 10: ... a Time of day Displayed in HH MM SS Displayed in 12 hour or 24 hour format The 24 hour format does not use AM and PM For example 15 45 is the same as 3 45 PM Selecting the 12 or 24 hour format is explained on pages 32 33 b Day of the week Displayed as a two letter ab breviation c Date Displayed in Month Day format d Diving Mode Indicator Displays DIVE if the computer is set to Dive Mode or GAGE i...

Page 11: ...match the contents in your cylinder NS Altitude sector Not Shown If the QuantumX detects that it is at altitude it will display one to three altitude sector icons The QuantumX automatically adjusts for altitudes up to 19 680 ft 6000 m The following table lists the altitude sectors and their corresponding altitude range WARNING When diving at altitude make sure the altitude sector matches the actua...

Page 12: ... Low Battery Indicator When the battery power is too low for the computer to function properly the Quan tumX displays a battery icon When the battery icon is blinking you can place the computer into PC Transfer Mode to download your dive profiles to a PC but it will not enter dive mode When the battery icon stops blinking you cannot dive with the computer and will not be able to transfer to a pers...

Page 13: ...xposure to higher partial pressures of oxygen when diving with enriched air nitrox c Desaturation Time Desaturation time is the amount of time it takes to release all the residual nitrogen left in your body from previous dives Any dive made while there is still desaturation time remaining is considered a repetitive dive d Surface Interval Time Surface interval time is the amount of time since surf...

Page 14: ...st 48 hours then wait 12 hours before flying 2 Following a decompression stop dive wait at least 24 hours or if possible 48 hours Both UHMS and Divers Alert Network DAN agree that there can never be a fly ing after diving rule that is guaranteed to prevent decompression sickness Rather there can be a guideline that represents the best estimate for a conservative surface interval for the vast major...

Page 15: ...de the computer displays the following informa tion a Animated compass rose As you rotate the ani mated compass rose displays the cardinal points E W N S to show your general direction b Direction arrow The arrow points to the direc tion you are traveling c Degrees In the center of the screen is the exact degree reading displayed in one degree increments d Time of day Compass Display a b c d ...

Page 16: ...arrow appears above the direction arrow This allows you to stay on course by keeping the direction arrow and bearing symbol aligned As you turn off course the bearing symbol moves with the compass rose To get back on course turn towards the bearing symbol until it is aligned with the direction arrow Reciprocal Symbol As you turn 180 degrees from your bearing the recip rocal symbol appears To retur...

Page 17: ...most accurate compass reading calibrate the compass whenever traveling a significant distance to a new dive destination If you dive in the same area it is not necessary to calibrate the compass Follow these steps to calibrate the compass 1 Put the QuantumX into compass mode 2 Press and hold the B button until the message ROTATE SLOWLY and an empty circle appears at the top of the screen 3 Keeping ...

Page 18: ...rapidly scroll through the set tings 2 Press A to move to the next field 3 Press MODE to save the settings and exit the mode The settings are listed below in the order that you can change them The setting that is being changed will flash a Operational Mode If set to DIVE the Quan tumX will function as a complete dive computer and calculate no decompression decompression and oxygen related informat...

Page 19: ... three nitrox mixes you can set the PO2 from 1 0 to 1 6 and the FO2 from AIR 21 to 99 As you change the PO2 and FO2 the Maximum Operating Depth MOD automatically recalculates After the first mix is set the computer will display Mix 2 After Mix 2 is set Mix 3 will be dis played If you want to use the computer for air only all three mixes must be set to AIR If any of the three nitrox mixes is set to...

Page 20: ... can be set for 2m to 100m in 1m increments You can also set the alarm to be ON or OFF If set to ON the icon will be displayed d Dive Time Alarm If your bottom time ex ceeds this setting you will get an audible warning You can also set the alarm to be ON or OFF If set to ON the icon will be displayed ...

Page 21: ...r if the dive is deeper than 21m 69 ft g Water type Actual depth can differ based on the salinity of the water If you are diving in a fresh water lake or river set the QuantumX to Fresh if diving in seawater set it to Sea f Profile recording interval The Quan tumX can record depth measurements every 10 or 30 seconds If set to 10 memory capacity is reduced ...

Page 22: ...e set to 0 1 or 2 When set to 0 the computer will perform calculations based on the current altitude setting If set to 1 the calculations are made as though the computer was at one altitude sector higher This adds in an extra level of conservatism ...

Page 23: ...uantumX will default the FO2 for that mix to 99 after a 10 minute surface interval and display the mix as two dashes if a mix is set to Air it will stay set to Air indefinitely When a mix is set to the default the following warning will appear when you enter the water Default FO2 Warning ...

Page 24: ...h time combination 2 Press A to go to the next shallower depth time combination 3 Press MODE to exit the mode In Plan Mode the computer displays the following information a Plan Depth The computer will display the plan depths in 3m 10 ft increments starting at 9m 30 ft and ending at 48m 160 ft b No decompression limit NDL This is the maximum amount of time you can stay at the given depth before re...

Page 25: ...owever that you download all your dives and or enter them into your logbook before changing the battery The QuantumX logs more information than can be displayed on a single screen therefore the logbook displays three pages of information for each dive To enter the Logbook mode press MODE until Logbook Icon is displayed Page 1 of the most recent dive is displayed In Logbook Mode the buttons operate...

Page 26: ... arrow this is the time of day that the dive started d Date The date the dive started shown in mm dd format e Dive number The number of the dive made that day f Residual nitrogen The residual nitrogen at the end of the dive This is not displayed if it was a Gage Mode dive g Oxygen level The oxygen level at the end of the dive h Dive profile A graphic representation of the dive profile for the enti...

Page 27: ...m operating depth for either mix the label will flash k Diving Mode Indicator If the computer was used in dive mode the indicator will be displayed if used in gauge mode the indicator will be displayed Logbook Page 2 a Page Number The denotes whether page 2 or 3 is being displayed b Dive time This is the total time spent below 1 2m 4 ft c End time Denoted by the upward pointing arrow the time of d...

Page 28: ...ic logbook data the QuantumX also records the dive depth every 10 or 30 seconds see Dive Mode Settings on pages 18 21 The Profile Mode plays back the profile in one minute increments This profile information is also down loadable to a PC To enter the Profile Mode press MODE until you see the dive profile in dot matrix display Note Unlike the Logbook Mode the Profile Mode does not display the nitro...

Page 29: ...rofile denot ing the position of the datapoint being displayed b Profile number This is the sequential number of the dive in memory c Dive time This is the minute displayed during the dive Though the profile is recorded in 10 or 30 second intervals the profile is only displayed in one min ute intervals d Depth The depth where the sampling occurred e Dive number The number of the dive made that day...

Page 30: ...ory Mode the QuantumX displays the fol lowing information a Total Dive Time Total dive time is the num ber of hours and minutes spent underwater up to 999 59 hrs min After 999 59 it will roll over to 0 00 b Total dives This is the total number of dives ever made up to 9999 After 9999 it will roll over to 0 c Maximum Depth This is the deepest dive ever made d Dive mode indicator Shows whether it s ...

Page 31: ...reen In PC Transfer Mode the buttons operate as fol lows 1 Pressing A has no function 2 Pressing B has no function 3 Pressing Mode will exit PC Transfer Mode and go to Set Time Mode WARNING The QuantumX cannot enter Dive Mode while in PC Transfer Mode You must exit this mode before attempting to dive Otherwise the computer will not perform any nitrogen or oxygen calculations which may lead to seri...

Page 32: ...yed in the dot matrix display The buttons operate as follows 1 Press B to change a setting Press and hold B to rapidly scroll through the set tings 2 Press A to move to the next field 3 Press MODE to save the settings and exit the mode The settings are listed below in the order that you can change them The setting being changed flashes a Seconds Pressing the B button will reset the seconds to 00 I...

Page 33: ... will disappear Change Units of Measure The QuantumX allows you to change the units of measure from Imperial feet F to Metric meters C or vice versa 1 Press MODE until DIVESET appears in the dot matrix display see Dive Settings Mode 2 Press and hold both A B for 5 to 6 seconds An audible alarm will sound and the depth display will switch to the new metric or imperial setting 3 Press and hold MODE ...

Page 34: ...decompression sickness Pre Dive Checklist Before making a dive it is important that you make sure you go through the follow ing checklist 1 Make sure the time and date is set correctly Remember the QuantumX re cords the time and date of each dive into memory 2 Check the Altitude sector and make sure it matches the altitude of the dive site 3 Go into Dive Settings Mode and make sure all the paramet...

Page 35: ...e in PC Transfer Mode You must exit PC Transfer Mode before attempting to dive Otherwise the computer will not perform any nitrogen or oxygen calculations which may lead to serious injury or death Testing the water contacts You can test this feature by wetting your finger and touching the water contacts The word WATER should appear in the dot matrix display If WATER does not appear it is possible ...

Page 36: ...switch nitrox mixes 3 Press and hold B to add a bookmark to the profile memory 4 Press B to enter the Compass Mode 4 To activate the backlight press any button Pressing MODE will activate the backlight but not switch any displays Primary Display a Current Depth How deep you are at any moment during the dive b No decompression limit NDL The amount of time you can stay at the current depth before re...

Page 37: ...ow require mandatory decompression stops f Oxygen Bar Graph Graphically shows your exposure to an elevated partial pressure of Oxygen PO2 The bar graph has eight segments When the eighth segment appears you have reached 100 of the CNS clock g Nitrox symbol Only displayed if the FO2 is set to 22 or higher for any of the three mixes Does not appear if all the mixes are set to Air No Deco Dive Mode P...

Page 38: ...the mix currently in use Alternate Display 2 While continuing to keep the A button pressed the second alternate display appears after two seconds a Maximum depth The deepest depth reached during the dive b Temperature The actual water temperature at that time Since the temperature sensor is inside the computer it may take a few minutes before you get an accurate reading Dive Mode Alternate Display...

Page 39: ...m the complete three minute safety stop before surfacing from the dive a Safety stop time Safety stop time is shown in min sec It starts at 3 00 and counts down to 0 00 If you descend below 6m 20ft the countdown is paused until you ascend to 6m 20ft If you descend below 10m 33ft the safety stop will reset to 3 00 when you return to 6m 20 ft b Safety stop alert Displayed above the current depth to ...

Page 40: ...mX will show the new no decompression limit NDL and PO2 based on the mix being se lected For example if the QuantumX is set to Mix 1 and you press the A button it will show the NDL and PO2 based on Mix 2 If the PO2 is below 1 6 the QuantumX will allow the switch to the new mix however if the PO2 is 1 6 or higher the QuantumX will not allow the switch If the mix is set to default the QuantumX will ...

Page 41: ...ds DECO STOP in the dot matrix display for 15 seconds b DECO label Displayed above the current depth to alert you that you are in Decompression Mode c Stop depth This is the shallowest depth to which you can ascend DO NOT ascend above this depth until the computer displays the next shallower decom pression stop or the computer returns to No Decompression Dive Mode d Stop time This is the amount of...

Page 42: ... Mode on pages 18 22 and if the dive is deeper than 21 meters 69 feet a Deep stop depth This is the depth at which the deep stop is performed b Deep stop timer Deep stop time is shown in seconds It starts at 59 and counts down to 00 c Deep stop label Denotes that the computer will be using deep stops Deep Stop Display a c b ...

Page 43: ...owable rate of ascent is dependent upon the depth The table below shows the three depth ranges and the fastest ascent allowed in each range Depth Range Ascent Rate Limit 0 5 9 m 0 20 ft 8 m 26 ft min 6 17 9 m 21 59 ft 12 m 39 ft min 18 m 60 ft or deeper 16 m 52 ft min If you exceed the fastest allowable ascent rate the QuantumX flashes the SLOW symbol sounds an audible alarm and flashes the curren...

Page 44: ...l If the PO2 reaches or exceeds 1 6 the computer sounds a continuous audible alarm PO2 ALARM appears in the dot matrix display and the OLI graph flashes The alarm will continue to flash until you ascend to a safer shallower depth NOTE If the PO2 warning activates at 20 feet you forgot to reset the FO2 and the computer is us ing the 99 default PO2 Caution 34 05 0460 7 8 PO2 Alarm 34 05 0460 7 8 ...

Page 45: ...compression Stop Violation Warning If you ascend shallower than the required decom pression stop the QuantumX will alert you by flashing a DECO AL STOP warning in the dot matrix display DECO label current depth deco stop depth and deco stop time This warning will remain in effect until you descend to or slightly deeper than the decompression stop depth If you ignore the decompression stop and surf...

Page 46: ...lay and the bar graph When the last segment on the OLI bar graph ap pears the audible alarm sounds and OLI ALARM flashes in the dot matrix display The entire bar graph will flash until you ascend to a shallower depth and the bar graph reduces to seven segments Oxygen Limit OLI Caution 34 05 0460 7 8 Oxygen Limit OLI Alarm 34 05 0460 7 8 ...

Page 47: ...th limit of 99 9m 328 ft 2 Dive time limit of 999 minutes 3 Deepest decompression stop of 27m 90 ft 4 Decompression stop time of 99 minutes 5 Total ascent time of 99 minutes In the extremely unlikely event that you exceed one of the limits listed above the com puter will sound an alarm replace the depth display with dashes and flash the entire display The computer cannot be used for 48 hours after...

Page 48: ...t 48 hours until you can use Dive Mode Gauge Mode has a primary display and two alternate displays Pressing and holding the A button shows the alternate displays When the button is released the computer switches back to the primary display Primary display a GAGE Mode indicator Alerts you that the QuantumX is in Gage Mode b Current Depth How deep you are at any moment during the dive c Dive Time Th...

Page 49: ... Gage Mode Alternate Display 2 a a b Alternate Display 2 While continuing to keep the A button pressed the second alternate display appears after two seconds a Maximum depth The deepest depth reached during the dive b Temperature The actual water temperature at that time Since the temperature sensor is inside the computer it may take a few minutes before you get an accurate reading ...

Page 50: ...efault setting This feature is primarily used by dive shop rental departments You are strongly cautioned never to use this feature WARNING All memory of nitrogen and oxygen loading is erased when you press the Reset Button If you press the Reset Button between dives you must wait 24 hours before diving again Otherwise you may increase the risk of decom pression sickness System Reset Button ...

Page 51: ...ormal bumps associated with SCUBA diving however it cannot withstand the impact of heavy objects such as a weight belt or SCUBA cylinder Do not leave it exposed where someone could accidentally step on it or drop something on it Care during the dive The most common damage inflicted on a computer while diving is scratches in the lens If the QuantumX is worn on the wrist you must be careful when rea...

Page 52: ...ory when the battery is replaced however it is recommended that you record all your logbook information and upload the data to your PC if you have the optional PC interface kit before changing the battery Whenever you see the low battery symbol you should immediately change the battery It is also recommended that you change the battery before any extended multi day dive trip CAUTION Damage from im...

Page 53: ... risk of decompression sickness Battery Removal and Replacement Note Replace the battery in a dry clean environment taking extreme care to prevent moisture and dust from entering into the battery compartment 1 Using a coin never use a screwdriver turn the battery hatch counter clockwise and remove it from the case 2 Using your fingers remove the O ring from the battery hatch and discard Do not use...

Page 54: ... of damage return the unit to your authorized dealer and do not attempt to use it 3 With your finger lift up on the edge of the battery op posite the gold contact and remove the battery 5 Using a clean dry lint free cloth wipe the sealing area of the battery compartment Inspect to make sure it is completely clean and dry ...

Page 55: ...ring using a scuba grade silicone grease such as Dow Corning 111 This grease is available at most dive shops Do not overlubricate Install the new O ring onto the battery hatch Carefully thread the battery hatch into the case in a clockwise direction until snug Using a coin tighten the battery hatch until it can no longer be turned 8 After the battery is changed the time and date will be incorrect ...

Page 56: ...nds Depth 3 0 5m 3 2 ft Temperature 2 0 C 4 F Measurement Range Depth 0 to 99 9 msw 0 to 328 fsw Dive Time Dive Mode 0 599 minutes Gage Mode 0 1199 minutes Altitude 0 to 6000 m 0 to 19680 ft measured every 10 minutes Temperature 5 to 40 C 23 to 104 F measured once per minute ...

Page 57: ...es PO2 Limits 1 0 to 1 6 for all mixes Operational Limits Waterproof limit 99 9 msw 328 fsw Operational Temperature 5 to 40 C 23 to 104 F Battery Battery Type CR2032 3v lithium coin cell Battery Life 3 years based on 50 one hour dives per year and 10 seconds of audible alarms per dive ...

Page 58: ...58 Physical Dimensions Diameter 62mm 2 44 inches Thickness 25mm 98 inches Weight 115 g 4 1 oz Algorithm Type Modified Swiss model by Randy Bohrer Number of Tissue Compartments 12 ...

Page 59: ...59 QuantumX Owner s Manual ...

Page 60: ...QuantumX User s Guide Copyright 2009 Apeks Marine Equipment Ltd Neptune Way Blackburn Lancashire England BB1 2BT Tel 44 0 1254 69220 Fax 44 0 1254 692211 E mail info apeks co uk Website www apeks co uk ...

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