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Quantum Owner's Manual

Contents

FOR YOUR SAFETY..................................................................5
INTRODUCTION .....................................................................7
SECTION 1: Using the Quantum on the Surface .......................8

The Push Buttons ...................................................................................................8

The Mode Button ............................................................................................. 8

Time Display Mode (pre-dive).............................................................................10

Backlight ...................................................................................................... 12
Low Battery Indicator  .................................................................................... 12

Time Display Mode (post-dive) ...........................................................................13
Wait-to-fly Guidelines ...........................................................................................14
Dive Settings Mode...............................................................................................15
Plan Mode .............................................................................................................19
Logbook Mode .....................................................................................................21

Logbook Page 1.............................................................................................. 23
Logbook Page 2.............................................................................................. 24
Recorded violations......................................................................................... 24

Profile Mode .........................................................................................................25

Summary of Contents for Quantum

Page 1: ...QUANTUM Nitrox Dive Computer User s Guide ...

Page 2: ...8 The Push Buttons 8 The Mode Button 8 Time Display Mode pre dive 10 Backlight 12 Low Battery Indicator 12 Time Display Mode post dive 13 Wait to fly Guidelines 14 Dive Settings Mode 15 Plan Mode 19 Logbook Mode 21 Logbook Page 1 23 Logbook Page 2 24 Recorded violations 24 Profile Mode 25 ...

Page 3: ...c Activation 32 Testing the water contacts 32 No decompression Dive Mode 33 Primary Display 33 Alternate Display 35 Safety Stop 36 Switching Nitrox Mixes 37 Decompression Dive Mode 38 Summary of Warnings and Alarms 40 FO2 Warning 40 Fast Ascent Warning 40 PO2 Warning 41 Decompression Stop Violation Warning 41 Oxygen Limit Warning 42 Out of Range Warning 42 ...

Page 4: ...TENANCE 46 Care before the dive 46 Care during the dive 46 Care after the dive 47 Changing the Battery 47 Battery Removal and Replacement 48 TECHNICAL SPECIFICATIONS 52 Accuracy 52 Measurement Range 52 Nitrox Settings 53 Operational Limits 53 Battery 53 Physical Dimensions 54 Algorithm 54 ...

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 Quantum dive computer The Quantum 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 decompress...

Page 6: ... the Quantum 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 decom pression accident ...

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

Page 8: ...rred to as MODE A and B see figure 1 The detailed function of each button is explained throughout this manual The Mode Button All the surface functions are accessed by pressing the MODE button The Quantum has seven surface modes TIME time of day display DIVE dive settings PLAN plan mode LOG logbook memory PROF dive profile memory PC PC download and SET time and date settings A B MODE Figure 1 Push...

Page 9: ...lls through the seven modes As you scroll through the modes the name of each mode is displayed at the bottom of the screen see figure 2 ð ð ð ð ð ð Figure 2 Mode Names In this section each mode will be explained in the order it appears as shown in figure 2 ...

Page 10: ...ton activity for several minutes while in another mode the computer will automatically exit back to the time display a Time of day 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 page 29 b Seconds Seconds are displayed to the right of hours minutes c Date Displayed in month ...

Page 11: ...r icons The Quantum 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 actual elevation of the dive site otherwise the Quantum may display inaccurate information Note When arriving at a new altitude sector segments on the nitrogen l...

Page 12: ... function properly the Quan tum displays a battery icon see figure 4 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 personal computer Figure 4 Low Battery Icon ...

Page 13: ...cating that you are off gassing nitrogen b Oxygen Bar Graph The Oxygen Bar Graph is a series of eight segments that graphically represent your CNS clock It tracks your exposure to higher par tial 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...

Page 14: ...ter the last dive to fly in an aircraft with a cabin pressure of 8000 feet 2438 m or less The two exceptions to this recommendation are 1 Less than two hours of dive time in the last 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 divin...

Page 15: ...s 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 see Figures 6 7 The setting that is being changed will flash a Operational Mode If set to DIVE the Quantum will function as a complete dive computer and calculate no decompression decompression and oxygen related information If set to GAGE the Quantu...

Page 16: ...Important Nitrox Note on page 18 c Nitrox Mix 2 The FO2 setting for Mix 2 may be set for Air 21 to 99 Please read the Important Nitrox Note on page 18 Figure 6 Dive Settings Mode screen 1 a b c d e f g Figure 7 Dive Settings Mode screen 2 h i j k N E X T F I E L D C H A N G E S E T T I N G ...

Page 17: ...um can record depth measurements every 15 or 30 seconds If set to 15 memory capacity is cut in half 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 Quantum to Fresh if diving in seawater set it to Sea h Depth Alarm If you exceed this depth the Quantum will give you an audible warning i Depth Alarm On Off Allows you to...

Page 18: ...ing the water Return to the surface and reset the FO2 to the proper percentage If you continue the dive you will reach the PO2 limit at about 20 feet 6 m Again return to the surface and reset the FO2 to the proper percentage If Mix 1 defaults to 99 the no decompression and decompression calculations will be calculated as though you were diving with normal air 79 nitrogen Therefore the Quantum calc...

Page 19: ...is disabled In Plan Mode the buttons operate as fol lows 1 Press B to go to the next deeper depth 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 figure 8 a Plan Depth The computer will display the plan depths in 3m 10 ft incre ments starting at 9m 30 ft and ending at 48m 160 ft...

Page 20: ...shes will be displayed c Nitrox Mix 1 You need to make sure the FO2 accurately matches the actual breathing gas in your cylinder See Dive Settings Mode on page 15 d Desaturation Time Only displayed on repetitive dives e Surface Time Only displayed on repetitive dives f Water Type Displays the selected water type Sea or Fresh g Nitrogen Bar Graph Only displayed on repetitive dives h Oxygen Bar Grap...

Page 21: ... mended however that you download all your dives and or enter them into your logbook before changing the battery The Quantum logs more information than can be displayed on a single screen therefore the logbook displays two pages of information for each dive To enter the Logbook mode press MODE until LOG is displayed at the bottom of the screen Page 1 of the most recent dive is displayed In Logbook...

Page 22: ...4 Pressing and holding B rapidly scrolls back through the logbook pages from the most recent dive to oldest dive e g 1 1 2 1 3 1 58 1 59 1 60 1 5 Pressing Mode will exit Logbook Mode and go to Profile Mode Figure 8 Logbook Page 1 a b c d e f g h i j k l m n Figure 9 Logbook Page 2 o p q r S C R O L L B A C K S C R O L L F O R W A R D ...

Page 23: ... the dive ended Displayed in 24 hour format e Date The date the dive started f Dive time This is the total time spent below 1 5m 5 ft g Dive number The number of the dive made that day h NITROX indicator If the FO2 was set to 22 or higher the computer records that it was a nitrox dive i Mix Settings The FO2 setting for Mix 1 and Mix 2 when dive was made j Residual nitrogen The residual nitrogen at...

Page 24: ... Average depth The average depth of the dive r Maximum depth The deepest depth reached during the dive Recorded violations a Decompression If a decompression dive was made the label will be displayed if the decompression stop was violated the label will flash b Fast ascent If the ascent rate was violated the label will flash c PO2 violation If you exceed the maximum operating depth for either mix ...

Page 25: ...ation is also downloadable to a PC To enter the Profile Mode press MODE until PROF is displayed at the bottom of the screen In Profile Mode the buttons operate as follows 1 Pressing A pauses the play back of the profile 2 Pressing B scrolls back through the dives e g 60 59 58 3 2 1 3 Pressing and holding B rapidly scrolls back through the dives 4 Pressing Mode will exit Profile Mode and go to PC T...

Page 26: ...le recording was set to 30 seconds you will see two depth readings for each minute if set to 15 seconds you will see four depth readings per minute c Depth The depth where the sampling occurred d Date The date the dive was made e Mix The mix setting used during the dive f Water Type The water type setting when the dive was made g NITROX indicator If the FO2 was set to 22 or higher the nitrox indic...

Page 27: ...In PC Transfer Mode the buttons operate as follows 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 Quantum can not 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 serious in...

Page 28: ...screen 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 see Figure 12 The setting that is being changed will flash a Seconds Pressing the B button will reset the seconds to 00...

Page 29: ... date are set the hours minutes will start to flash indicating that you can toggle between the 12 hour and 24 hour format When set to the 24 hour format the AM or PM label will disappear Figure 12 Time Set Mode a b c d e f N E X T F I E L D C H A N G E S E T T I N G ...

Page 30: ...eters C or vice versa 1 Press MODE until DIVE is displayed at the bottom of the screen 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 to exit directly back to the Time display ...

Page 31: ... these practices may result in decom pression 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 Quantum records 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...

Page 32: ... cannot enter Dive Mode while 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 computer should enter Dive Mode and display a 0 depth reading I...

Page 33: ...mix cannot be changed if it will cause the PO2 to exceed 1 6 or if the mix is in its default setting displayed as See page 37 for more information 3 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 sta...

Page 34: ...g ment appears you have gone beyond the no decompression limit and now require mandatory decompression stops h 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 Figure 14 Dive Mode Primary Display a b c d e f g h i j S W I T C H M I X A L T E R N A T E...

Page 35: ...lternate Display Pressing the B button shows the alternate display figure 15 a Maximum depth The deepest depth reached during the dive b Temperature The actual water tem perature at that time Since the tem perature sensor is inside the computer it may take a few minutes before you get an accurate reading c FO2 The FO2 setting for Mix 1 and Mix 2 Figure 15 Dive Mode Alternate Display a b c ...

Page 36: ...rom 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 indicator Denotes that time below it is the safety stop time c Safety stop alert Displayed at the bot...

Page 37: ... no decompression limit NDL and PO2 based on the mix being selected For example if the Quantum 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 Quantum will allow the switch to the new mix however if the PO2 is 1 6 or higher the PO2 and label will flash and the Quantum will not allow the switch If the mix is set to default the Quant...

Page 38: ...m displays the following information a Decompression indicator This denotes that the computer is in De compression Dive Mode b 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 decompression stop or the computer returns to No Decompression Dive Mode c Stop time This is the amount of time you need to spend a...

Page 39: ... ascent time This is the total amount of time required at all the decom pression stops plus the time it takes to ascend to all the stops e DECO alert Displayed at the bottom of the screen to alert you that you are in Decompression Mode ...

Page 40: ...n the depth The table below shows the three depth ranges and the fastest ascent allowed in each range Depth Range Ascent Rate Limit 0 20 ft 0 5 9 m 26 ft 8m per minute 21 to 59 ft 6 to 17 9 m 39 ft 12m per minute 60 ft 18m or deeper 52 ft 16m per minute If you exceed the fastest allowable ascent rate the Quan tum flashes the SLOW symbol sounds an audible alarm and flashes the current depth The war...

Page 41: ...the computer is using the 99 default Decompression Stop Violation Warning If you ascend shallower than the required decompression stop the Quantum will alert you by flashing the 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 surface the ...

Page 42: ...ng The out of range warning only occurs when you take the Quantum to extreme depths and or time limits To acti vate the out of range warning you must exceed one of the following limits 1 Maximum depth limit of 100m 328 ft 2 Dive time limit of 599 minutes 3 Deepest decompression stop of 27m 90 ft 4 Decompression stop time of 99 minutes 5 Total ascent time of 999 minutes In the extremely unlikely ev...

Page 43: ... Mode like Dive Mode has a primary display and an alternate display Pressing and holding B shows the alternate display When the button is released the computer switches back to the primary display To activate the backlight press any button Pressing MODE will activate the backlight but not switch any displays Primary display a GAGE Mode indicator Alerts you that the Quantum is in Gage Mode b Curren...

Page 44: ...er type is set to fresh water or sea water Alternate display a Temperature The actual water tem perature at that time Since the tem perature sensor is inside the computer it may take a few minutes before you get an accurate reading b Maximum Depth The deepest depth reached during the dive Figure 22 Gage Mode Alternate Display a b ...

Page 45: ...date to it s default 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 de compression sickness Figure 23 Sys...

Page 46: ...ssociated 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 Quantum is worn on the wrist you must be careful when reaching into roc...

Page 47: ...ook memory 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 inter face kit before changing the battery Whenever you see the low battery symbol you should immediately change the bat tery right It is also recommended that you change the battery before any extended multi day dive trip CAUTION...

Page 48: ...mpression sickness Battery Removal and Replacement Note Replace the battery in a dry clean environment taking extreme care to pre vent 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 any tools t...

Page 49: ...d any signs 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 50: ...e facing upward Insert the battery at a slight angle so the edge pushes against the gold contact then press the battery into place 7 Lightly lubricate a new O ring using a food 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 di...

Page 51: ...e will be incorrect Reset the time and date by following the procedures on page 28 Go through all the surface modes to make sure they are working properly Reset the Dive Settings if neces sary Wet your finger and touch both contacts to make sure the unit goes into dive mode ...

Page 52: ...epth 3 0 5m 3 2 ft Temperature 2 0 C 4 F Measurement Range Depth Dive Mode 0 to 99 9 msw 0 to 328 fsw Gage Mode 0 to 199 msw 0 to 656 fsw Dive Time 0 599 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 53: ... 1 increments PO2 Limits 1 4 for Mix 1 1 6 for Mix 2 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 54: ...54 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 55: ...55 Quantum Owner s Manual ...

Page 56: ...Quantum User s Guide Copyright 2003 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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