Apeks Quantum Owner's Manual
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Apeks Quantum Owner's Manual

Nitrox dive computer
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QUANTUM
Nitrox Dive Computer
User's Guide

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Summary of Contents for Apeks Quantum

  • Page 1 QUANTUM Nitrox Dive Computer User's Guide...

  • Page 2: Table Of Contents

    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...
  • Page 3 Quantum Owner's Manual PC Transfer Mode....................27 Set Time Mode .....................28 Change Units of Measure..................30 SECTION 2: Diving with the Quantum ........31 Pre-Dive Checklist....................31 Automatic Activation ....................32 Testing the water contacts ................32 No-decompression Dive Mode................33 Primary Display ..................... 33 Alternate Display....................
  • Page 4 Gage Mode......................43 Primary display ..................... 43 Alternate display .................... 44 System Reset Button .....................45 CARE & MAINTENANCE............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..........

  • Page 5: For Your Safety

    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 decompression experts and backed by years of research and thousands of dives.
  • Page 6 WARNING: Using 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: Introduction

    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 the material contained in this manual, please...

  • Page 8: Section 1: Using The Quantum On The Surface

    SECTION 1 Using the Quantum on the Surface The Push Buttons The Quantum has three buttons that allow you to access modes, change settings and switch displays. Throughout this manual, the buttons will be referred to as MODE, A, and B (see figure 1). The detailed function of each button is explained throughout this manual.
  • Page 9 Quantum Owner's Manual Pressing the MODE button scrolls 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...

  • Page 10: Time Display Mode (Pre-Dive)

    Time Display Mode (pre-dive) The Quantum’s default mode is the Time Display Mode (figure 3). The computer always returns to the time display after making a dive or exiting from one of the other modes, such as Plan Mode or Log Mode.
  • Page 11 Altitude sector: If the Quantum detects that it is at altitude, it will display one to three altitude sector 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.

  • Page 12: Backlight

    Backlight To activate the backlight, press A or B. The backlight will stay on for 4 to 5 seconds. Low Battery Indicator When the battery power is too low for the computer to 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,...

  • Page 13: Time Display Mode (Post-Dive)

    Quantum Owner's Manual Time Display Mode (post-dive) After making a dive, the Time Display Mode shows additional information (figure 5): Nitrogen Bar Graph. The Nitrogen bar graph is a series of nine segments that graphically represent your body’s residual nitrogen. During the surface...

  • Page 14: Wait-To-Fly Guidelines

    Surface Interval Time: Surface interval time is the amount of time since surfacing from a dive. It is displayed for 48 hours after the last dive. No Fly Icon: The No Fly icon will stay on for a minimum of 12 hours after a dive.

  • Page 15: Dive Settings Mode

    To enter the Dive Settings mode, press MODE until DIVE is displayed at the bottom of the screen. Note: If the Quantum is in Gauge Mode, it will display GAGE instead of DIVE. The buttons operate as follows: Press B to change a setting.
  • Page 16 Nitrox Mix 1: The FO setting for Mix 1 may be set for Air (21%) to 50%. Please read the Important Nitrox Note on page 18. Nitrox Mix 2: The FO setting for Mix 2 may be set for Air (21%) to 99%. Please read the Important Nitrox Note on page 18.
  • Page 17 15 or 30 seconds. If set to 15, memory capacity is cut in half. 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.
  • Page 18 IMPORTANT NITROX NOTE: If either mix is set to 22% or higher, the Quantum will default the FO for that mix to 99% at midnight and display the mix as two dashes ( - - %); if either mix is set to Air, it will stay set to Air indefinitely.

  • Page 19: Plan Mode

    To enter Plan Mode, press the MODE button until PLAN is dis- played at the bottom of the screen. Note: If the Quantum is set to GAGE mode, PLAN mode is disabled. In Plan Mode, the buttons operate as fol-...
  • Page 20 No-decompression limit (NDL). This is the maximum amount of time you can stay at the given depth before requiring mandatory decompression stops. If you set Mix 1 to 22% or higher and you exceed your Maximum Operating Depth (MOD), three dashes (- - -) will be displayed. Nitrox Mix 1.

  • Page 21: Logbook Mode

    Quantum Owner's Manual Logbook Mode The Quantum logs any dive that is at least 1.5m/5 ft., and has a dive time of at least three minutes. The Quantum's memory capacity is 30 hours or 60 logged dives if the sampling rate is set to 30 seconds. If the sampling rate is set to 15 seconds, the logbook capacity is cut in half to 15 hours or 30 logged dives.
  • Page 22 Pressing B scrolls forward through the logbook pages from the oldest dive to newest dive. e.g., 1-2 2-1 . . . 59-2 59-1 60-2 60-1.       Pressing and holding B rapidly scrolls back through the logbook pages from the most recent dive to oldest dive, e.g., 1-1 .

  • Page 23: Logbook

    Quantum Owner's Manual Logbook Page 1 (see figure 8) Log Number: This is the sequential number of the dive relative to all the other dives in memory. The higher the number, the newer the dive, i.e., dive 1 is the oldest dive in memory.

  • Page 24: Logbook

    Altitude Sector: The altitude sector when the dive started. Ascent Rate Indicator: The fastest ascent speed recorded during the dive. If the maximum ascent rate was exceeded during the dive, the indicator will also appear. Logbook Page 2 (see figure 9) Water temperature: The temperature recorded at the maximum depth.

  • Page 25: Profile Mode

    Quantum Owner's Manual Profile Mode In addition to the basic logbook data, the Quantum also records the dive depth ev- ery 15 or 30 seconds (see Dive Settings Mode on page 15). The Profile Mode plays back the profile so you can manually plot the dive profile. This profile information is also downloadable to a PC.
  • Page 26 In Profile Mode, the Quantum displays the following information (see figure 10): Profile number: This is the sequential number of the dive in memory. Dive time: This is the minute display during the dive. If the profile 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.

  • Page 27: Pc Transfer Mode

    Pressing B has no function 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.

  • Page 28: Set Time Mode

    Set Time Mode The Quantum records the time and date of each dive into memory; therefore, it is important to make sure that the time and date are set correctly. Remember to set the time after changing the battery or traveling to a different time zone.
  • Page 29 Quantum Owner's Manual Year. Month. Day. After the time and 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.

  • Page 30: Change Units Of Measure

    Change Units of Measure The Quantum allows you to change the units of measure from Imperial (feet, °F) to Metric (meters, °C), or vice versa. Press MODE until DIVE is displayed at the bottom of the screen (Dive Settings Mode).

  • Page 31: Section 2: Diving With The Quantum

    Before making a dive, it is important that you make sure you go through the follow- ing checklist: Make sure the time and date is set correctly. Remember, the Quantum records the time and date of each dive into memory.

  • Page 32: Automatic Activation

    Go to Plan Mode (see page 19) and review your no-decompression time limits. GO DIVING. Automatic Activation At the top of the Quantum are two water contacts (see figure 13). When the water contacts are submerged, the computer automatically enters Dive Mode. The au- tomatic activation features works when the Quantum is any of its surface modes except for PC Transfer Mode.

  • Page 33: No-Decompression Dive Mode

    Quantum Owner's Manual No-decompression Dive Mode The Quantum has a primary dive display and an alternate display that you can access with a press of a button. The buttons work as follows: Pressing and holding B shows the alternate display. When the button is re- leased, the computer switches back to the primary display.
  • Page 34 MIX indicator: Which mix is currently being used. Ascent Rate: Graphically shows your ascent speed. Nitrogen Bar Graph: Graphically shows your body absorbing and eliminating Nitrogen. The bar graph has nine rectangular segments. When the last seg- ment appears, you have gone beyond the no-decompression limit and now require mandatory decompression stops.

  • Page 35: Alternate Display

    Quantum Owner's Manual Nitrox symbol: Only displayed if FO is set to 22% or higher. Does not appear if set to Air. Water Type: Shows it the water type is set to fresh water or sea water. Alternate Display Pressing the B button shows the alternate...

  • Page 36: Safety Stop

    Safety Stop Whenever you make a dive deeper than 10m/33ft., then ascend above 6m/20 ft., the Quantum 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.

  • Page 37: Switching Nitrox Mixes

    PO is 1.6 or higher, the PO label will flash and the Quantum will not allow the switch. If the mix is set to default (- - %), the Quantum will not allow the switch to the new mix.

  • Page 38: Decompression Dive Mode

    If you exceed the no-decompression time limit, you will be required to make mandatory decompression stops. The computer will automatically switch from No- Decompression Dive Mode to Decompression Dive Mode. In Decompression Dive Mode, the Quantum displays the following information: Decompression indicator: This...
  • Page 39 Quantum Owner's Manual Total 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. DECO alert: Displayed at the bottom of the screen to alert you that you are in...

  • Page 40: Summary Of Warnings And Alarms

    Oxygen percentage. Fast Ascent Warning The Quantum uses a variable ascent rate. The fastest allowable rate of ascent is dependent upon the depth. The table below shows the three depth ranges and the fastest ascent allowed in each range:...

  • Page 41: Po2 Warning

    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.

  • Page 42: Oxygen Limit Warning

    Oxygen Limit Warning When the next to last segment appears, the Quantum sounds an audible alarm for 3 seconds and flashes the bar graph for 10 seconds. When the last segment appears, the audible alarm will sound for three seconds, but the entire bar graph will flash until you ascend to a shallower depth and the bar graph reduces to seven segments.

  • Page 43: Gage Mode

    Quantum Owner's Manual Gage Mode If the Quantum is set to Gage Mode (see Dive Settings on page 15), the computer operates as a basic depth gauge and dive timer. It does not calculate no-decompres- sion, decompression, or oxygen information. If you make a dive while in Gage Mode, you must wait 48 hours until you can use Dive Mode.

  • Page 44: Alternate Display

    Dive Time: The amount of time below 1.5m/5 ft. Ascent Rate: Graphically shows your ascent speed. Water Type: Shows if the water type is set to fresh water or sea water. Alternate display 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.

  • Page 45: System Reset Button

    Quantum Owner's Manual System Reset Button On the backside of the Quantum is the System Reset Button (see Figure 23). Press- ing this button erases all residual nitrogen/oxygen information, and it resets the time and date to it's default setting. This feature is primarily used by dive shop rental departments.

  • Page 46: Care & Maintenance

    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 rocky holes and crevices to avoid scratching the computer. If you have the Quantum in a gauge console, secure the gauge close to you body so the gauge doesn't get dragged over coral and rocks.

  • Page 47: Care After The Dive

    Quantum Owner's Manual Care after the dive Soak the Quantum in a warm, fresh water bath to dissolve salt crystals. Rinse thor- oughly with fresh water and towel dry before final storage. Store the computer in a cool, dry and protected place. Do not store the computer in a wet or humid environ- ment.

  • Page 48: Battery Removal And Replacement

    WARNING: All memory of nitrogen and oxygen loading is erased when the battery is removed. If you change the batteries between dives, you must wait 24 hours before diving again. Otherwise, you may increase the risk of decompression 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.
  • Page 49 Quantum Owner's Manual With your finger, lift up on Inspect the gold contact and the edge of the battery op- small spring contact for signs posite the gold contact and of bending, breakage or cor- remove the battery. rosion. If you find any signs...
  • Page 50 Note: It is recommended that you do not handle the new battery with bare fingers, as skin oils may impair the electrical contact. Handle the battery with a lint-free cloth or wear gloves. The Quantum uses a CR2032 3v lithium coin cell battery. The new battery is installed with positive (+) side facing upward.
  • Page 51 Quantum Owner's Manual After the battery is changed, the time and date 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.

  • Page 52: Technical Specifications

    TECHNICAL SPECIFICATIONS Accuracy Time Average monthly variance ±30 seconds Depth ±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);...

  • Page 53: Nitrox Settings

    Quantum Owner's Manual Nitrox Settings Mix 1 FO2: 21 to 50% in 1% increments Mix 2 FO2: 21 to 99% in 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)

  • Page 54: Physical Dimensions

    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...
  • Page 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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