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Cochran Nemesis IIa NITROX, Руководство пользователя

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15

OPERATING MODES

Self-Diagnostic Mode

At turn-on, both the TU and WU complete self-diagnostic tests before displaying cur-
rent information.  During these tests, all of the legends and digits on the WU illuminate
for approximately five seconds.  Upon completion, your computer enters the Surface
Mode.

Fig-1

Self-Diagnostic Mode

Explanation of Page Layouts

The following pages provide a "snapshot" of the screen displays for each of the
computers various functional modes, showing:

1.  An illustration of the WU display

2.  The LEGEND displayed

3.  The MEANING of that legend

4.  The VALUE depicted under that legend

5.  The PAGE where you may find more information on that particular function.

Any WARNINGS or NOTES about that mode will be displayed on this page.

Содержание Nemesis IIa NITROX

Страница 1: ...anyone other than an authorized Cochran Undersea Technology dealer will void this warranty All plastics o rings batteries or damage due to accident abuse modification or tampering are NOT covered STA...

Страница 2: ...nterference in a residential situation However there is no guarantee that interference will not occur in a particular installation If this equipment does cause interference to radio or television rece...

Страница 3: ...r more of the following patents US 4949072 4999606 AUS 591804 EUR 0305450 Other patents pending All specifications subject to change without prior notice Nem esis is a trademark of Cochran Consulting...

Страница 4: ...apability 10 Equivalant Air Depth 11 CNS and OTU Oxygen Toxicity 11 Installation 13 Activation 13 Operating Modes Self Diagnostic Mode 15 Surface Mode 16 Predive Prediction Mode 18 CNS OTU Toxicity Pe...

Страница 5: ...rameter Alarm 40 Ascent Rate Alarm 40 Low Battery Voltage 40 Gauge Mode Alarm 41 Two Minute Warning 41 60 Foot Decompression Stop Warning 41 Entering Emergency Decompression Mode 41 Oxygen Tolerance U...

Страница 6: ...st Software Package 61 Minimum Hardware Configuration 61 Iinstallation of the DCI Software to the PC 62 Quick Start 62 Detailed Software Installation 62 Installation of the Data Probe to the PC 63 Att...

Страница 7: ...7 THIS PAGE INTENTIONALLY LEFT BLANK...

Страница 8: ...your NEMESIS IIa NITROX to your regulator as well as providing information on how to activate your unit III OPERATING MODES This section illustrates a typical display in each of the various operating...

Страница 9: ...ou should wait before diving in order to off gas all residual nitrogen present as a result of this altitude change This adaptation time is displayed as Time To Fly Should you wish to begin diving prio...

Страница 10: ...ct They are simply used as a benchmark with the necessity of both being met in order to allow the algorithm switching to Mix 3 We find that most divers participating in this type of extreme diving usu...

Страница 11: ...AD based upon the oxygen percentage entered This equation is 1 O2 D 33 EAD 33 79 Where O2 is entered in decimal form and D is the actual depth in feet For example if you were diving with NOAA II 36 ox...

Страница 12: ...In addition to this audible warning the WARNING legend will appear and flash AND the TEMPerature digits will be replaced with the current calculated CNS Oxygen Toxicity percentage This warning will c...

Страница 13: ...lator system to the place where your purchased your NEMESIS IIa NITROX The Tank Unit TU clips to a low pressure hose close to the first stage When clip ping the TU onto the low pressure hose a rolling...

Страница 14: ...or a longer period of time than is required to manually activate the TU This same rotating or tapping action is used to select the alternate display The alternate display is shown for three seconds be...

Страница 15: ...enters the Surface Mode Fig 1 Self Diagnostic Mode Explanation of Page Layouts The following pages provide a snapshot of the screen displays for each of the computers various functional modes showing...

Страница 16: ...e time TANK pressure and MAXimum DEPTH of the last dive The Alternate Display shows the last dives BOTTOM time and breathing parameter BP The following sample displays are of the Surface Mode FIG 2 Ma...

Страница 17: ...17 Surface Mode FIG 3 Alternate Display LEGEND MEANING VALUE SHOWN PAGE BOTTOM bottom time of last dive 1 26 1hour 26 minutes 33 BP ending breathing parameter 33 34 of last dive...

Страница 18: ...ments via the optional Analyst PC Interface There is only a Main Display in this mode The WU will display the DEPTH TANK pressure and the lesser of the NDC no decompression time or AIRtime remaining f...

Страница 19: ...y Display At the conclusion of the Predive Prediction Mode your dive computer will display the current Central Nervous System CNS Toxicity and Oxygen Tolerance Unit OTU Toxicity levels The CNS and OTU...

Страница 20: ...n Display and is displayed for three sec onds FIG 6 Main Display LEGEND MEANING VALUE SHOWN PAGE REMAIN TIME NDC used to identify the 1 00 36 O2 Mix Display TANK indicates the Mix 1 O2 21 5 37 percent...

Страница 21: ...unit returns to Surface Mode There is only a Main Display for this mode FIG 7 Main Display LEGEND MEANING VALUE SHOWN PAGE REMAIN TIME NDC used to identify the 0 00 36 Battery Altitude Display TANK al...

Страница 22: ...ppears It will appear for three seconds before returning to the Logbook Mode s Main Display Your NEMESIS IIa NITROX will return to the Surface Mode thirty seconds after the final selected log has been...

Страница 23: ...PAGE REMAIN TIME AIR the minimum calculation 0 20 20 minutes 36 of either NDC AIR or the total decompression time recorded for this dive CEIL maximum ceiling stop 0 feet 34 required BP average breath...

Страница 24: ...ascending CEIL ceiling stop 0 feet 34 required if any BOTTOM bottom time 0 34 34 minutes 33 TANK current tank pressure 1856 psi 37 DEPTH current depth 46 feet 35 The Subsurface Mode has a Main and an...

Страница 25: ...ND MEANING VALUE SHOWN PAGE REMAIN TIME AIR greater of the two 2 47 2hours 47 minutes 36 or of remaining AIR time REMAIN TIME NDC TEMP current temperature 58 deg F 37 BP current breathing parameter 34...

Страница 26: ...ime displayed if you so desire CEILING is the depth to which you must ascend BUT NOT EXCEED for your first emergency decompression stop The WU display will indicate the various ceiling stop depths as...

Страница 27: ...15 15 minutes 37 remaining at this CEILing CEILING depth which you 20 feet 34 MUST NOT ascend above BOTTOM total bottom time 1 56 1hour 56 minutes 33 TANK current tank pressure 1654 psi 37 DEPTH curr...

Страница 28: ...is provided on the Alternate Display while in Emergency Decompression Mode LEGEND MEANING VALUE SHOWN PAGE REMAIN TIME AIR remaining air time 0 30 30 minutes 36 TEMP water temperature 68 deg F 37 BP b...

Страница 29: ...ck below the CEILing If five minutes elapse without this violation being corrected the dive computer enters its Gauge Mode EXCEEDING A 90 FOOT CEILING STOP A Ceiling depth of greater than 60 feet will...

Страница 30: ...ALUE SHOWN PAGE TEMP water temperature 55 degreesF 37 ASCENT rate at which you 31 40 feet per minute 32 are ascending BOTTOM current time either 3 36 3 hours 36 minutes 33 or on surface or submerged S...

Страница 31: ...31 SECTION III EXPLANATIONS...

Страница 32: ...ency Decompression Mode or Gauge Mode Ascent rate is averaged over a running four second period For purposes of the description this manual will just refer to ascent rate with the reader understanding...

Страница 33: ...e you will quickly be able to identify if you are approaching 100 maximum limit The Ascent Rate Bar Graph is set at the factory to display SPEED Batt This legend is illuminated when either the battery...

Страница 34: ...le the dive to 66 feet would display a BP of 69 23 x 3ATM s 69 With your dive computer you can immediately see that your rate remained unchanged from the first to second dive If the actual psi per min...

Страница 35: ...the TU s current battery voltage as a factor of ten For example if the TU s battery voltage is 5 8 volts the two digits under the DEPTH legend would display 58 If the battery voltage was 5 3 volts the...

Страница 36: ...ion Mode The remaining airtime is always displayed on the Alternate Display Logbook Mode If during the profile being displayed the minimum recorded remain ing time data was remaining airtime the Alter...

Страница 37: ...es or less of bottom time for a given depth during the Predive Prediction Mode the tank digits will flash This flashing will only occur for the predicted depths which apply Logbook Mode During the fir...

Страница 38: ...altitude after diving The time calculated includes an additional 12 hour surface time for added safety For example if it would take your body three hours to eliminate all residual nitrogen the time t...

Страница 39: ...one time five chirp audible alarm If you use all of the usable tank pressure you will still have a safety reserve of 500 psi The point at which the 1 2 Tank Pressure Alarm will sound is easily determ...

Страница 40: ...ow limits for Breathing Parameter If your Breathing Parameter is greater than your high limit or less than your low limit your dive computer will issue a five beep alarm once each minute until your Br...

Страница 41: ...sue a one time five chirp audible warning Entering Emergency Decompression Mode Should you enter Emergency Decompression Mode the TU will issue a one time five chirp audible alarm Oxygen Tolerance Uni...

Страница 42: ...FIG 15 OXYGEN TOXICITY WARNING DISPLAY Maximum PPO2 Alarm This alarm settable via the optional Analyst interface allow you to set a desired maximum PPO2 level from 0 5 to 1 6 ATA Should you exceed th...

Страница 43: ...ent When I tapped the TU on it did not issue the five confirmation beeps WHY The TU may already be on Turn your WU on to see if the TU is transmitting data If it is not check the batteries to see if t...

Страница 44: ...the o rings install new batteries and reinstall the battery caps You may also need to use a clean eraser or a burnishing cloth to completely clean the contacts Can I transport my dive computer in a wa...

Страница 45: ...45 SECTION IV CARE AND MAINTENANCE...

Страница 46: ...computer The WU s rubber strap may be conditioned with silicone spray especially developed for use with SCUBA equipment You will find this type of silicone spray at your local dive shop Care should a...

Страница 47: ...ing sure not to cross thread the battery cap NOTE The one minute delay allows the power circuit responsible for maintaining power to the TU during a battery change time to recharge Battery Care Two se...

Страница 48: ...be at least three feet and reset if necessary Battery Voltage The battery voltage in your TU and WU will be recorded and new batteries installed if necessary Battery Drain Test The amount of current d...

Страница 49: ...49 THIS PAGE INTENTIONALLY LEFT BLANK...

Страница 50: ...50 SECTION V TECHNICAL SPECIFICATIONS...

Страница 51: ...2 Alternate Display Subsurface Mode 1 Main Display 2 Alternate Display Predive Prediction Mode CNS OTU Toxicity Display Oxygen Percentage Display Battery Altitude Display Emergency Decompression Mode...

Страница 52: ...minute Second by second Profiles 13 6 hours HARDWARE Casing Fiberglass reinforced ABS Plastic Lens Material Polycarbonate POWER TANK UNIT WRIST UNIT Battery 4 AA 2 N Battery type Alkaline Alkaline TUR...

Страница 53: ...53 THIS PAGE INTENTIONALLY LEFT BLANK...

Страница 54: ...54 SECTION V ACCESSORIES...

Страница 55: ...ed by a photocopy of the original sales receipt Should repair be required you may return your Field Programmer to the place of purchase LIMITATIONS This warranty DOES NOT cover any damages that occur...

Страница 56: ...heNEMESIS IIaNITROXDiveComputerandtheFieldProgrammerare tobeusedonlybydiverstrainedandcertifiedintheuseofNitroxbreathinggasmixes by an accredited certifying agency NOTE The Field Programmer is NOT wat...

Страница 57: ...TE For Mix 1 the far upper left digit displayed a 1 i e 1 3 1 2 1 1 For Mix 2 this digitwilldisplaya2andforMix3 thedigitwillbea3 Thenumbersfollowingthedash signify either the 10 s 1 s or 1 10 s digit...

Страница 58: ...desired percentage of added conservatism from 00 to 50 percent This option programming is signified with a C in the upper left corner of the WU display 14 The last programming option is the maximum de...

Страница 59: ...59 Depth Limit for Mix 3 Activation nitrox Cylinder Size in Liters Elapsed Bot Time for Mix 3 Activation nitrox...

Страница 60: ...stics screen graphic profile screen and logbook screen are grouped together so you can scan from dive to dive in any screen type and instantly recall the other screens for that particular dive Minimum...

Страница 61: ...must also do so with the Analyst system 2 Insert the Analyst software diskette into your diskette drive We will assume that this is drive A To install the software type A and press ENTER Then type INS...

Страница 62: ...nector YourPersonalComputerCOM1orCOM2portmayhavea9 pinconnector instead of a 25 pin connector In this situation you will need to purchase a 25 to 9 pin adapter Adapters are available at most computer...

Страница 63: ...to the sport dive computer will often cause the divecomputertoturnon withresulting beeps Thisisnormal ItisNOTnecessary for the dive computer to be on for data to be uploaded However do not start the u...

Страница 64: ...ght or Allows you to move up and down the top bar menu selections Depending upon which screen you have displayed this will also move you between dives one dive at a time HOME This key takes you to the...

Страница 65: ...ase enter name of new file to be created At this point if you enter a file name using up to eight characters or numbers from the list of files displayed The file name you create will correspond to one...

Страница 66: ...s battery voltage time to fly etc Current data refers to the values calculated at the time of the uploading For these reason current data will change with each upload THIS DIVE A wealth of information...

Страница 67: ...m of the profile you may see very short colored vertical lines These lines refer to different warnings that the dive computer has posted Should you move the left marker line over one of these little v...

Страница 68: ...the smoothing of the graph with 0 representing no smoothing and 9 repre senting maximum smoothing Since Profiles are recorded at the sample rate specified it is recommended that you use the finest sam...

Страница 69: ...you configure the DISPLAY and ALARM functions of your dive computer Various HELP screens are available for each of these sections by pressing F1 once a selection is highlighted To make a change to yo...

Страница 70: ...LE This function allows the user to create a file that is compatible with the Diver s Alert Network s Project Dive Safety software package The interval at which this data is recorded is based upon the...

Страница 71: ...Dives This identifies the total number of dives made that entered decompression Total Decompr Time This identifies the total time spent in decompression Total of Warnings This identifies the total nu...

Страница 72: ...the dive Breathing Parameter This is the ending Breathing Parameter for the dive Min Battery Voltage This is the minimum recorded battery voltage of the dive Time To Fly This is the wait time before f...

Страница 73: ...e total volume of the tank s that you entered for this dive to be used in workload calculations Sea Fresh Water This identifies they type of water in which the dive was made Maximum Ascent Rate This i...

Страница 74: ...ines the resolution in which your dive profiles are created You may select from 1 second to 30 second resolution For each 1 second of profile store period you gain 13 hours of profile storage space bo...

Страница 75: ...ture compensation in the computer s algorithm You may wish to disable this function if you were diving in a dry suit Use the left or right mouse button to toggle between the two choices When the desir...

Страница 76: ...highlight this option with the middle mouse button and using the keyboard enter the desired setting and press ENTER Enter Blend 2 Oxygen in NITROX mixture This option allows you to enter the desired...

Страница 77: ...ption with the middle mouse button and using the keyboard enter the desired setting and press ENTER Select Ascent Rate Bar Graph This option determines whether you wish the bar graph to indicate the s...

Страница 78: ...is setting is suggested for deep technical diving which usually accompanies fast descent rates For recreational diving a slower responsiveness is suggested This will prevent large changes in the remai...

Страница 79: ...79...

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