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Date of Purchase _________________ 

 

 

Содержание NiTEK X

Страница 1: ...N Ni iT Te ek k X X D Di iv ve e C Co om mp pu ut te er r U Us se er r G Gu ui id de e Date of Purchase _________________ ...

Страница 2: ...ic must be accompanied by a copy of the purchase receipt For warranty repairs international or domestic the product must be returned to the store where the item was purchased or directly to Dive Rite A Return Authorization must be obtained by calling Dive Rite corporate offices 386 752 1087 to send items to Dive Rite No warranty service will be performed for other than registered owners Note Local...

Страница 3: ...Accessing display modes and screens 11 Surface Mode 12 Time Display and Set Mode 13 Dive Option Set and Display Mode 15 Plan Mode 25 Dive Computer Mode 27 Log Mode 37 Profile Mode 38 OXY Mode 39 PC Transfer Mode 41 Surface Mode upon surfacing from a dive 42 Altitude Operation 44 Chapter 3 Care and maintenance 45 Proper Handling Techniques 46 Low Battery Warning 47 Replacing the Battery 47 Index 49...

Страница 4: ...NiTek X Dive Computer User Manual v1 1 iv ...

Страница 5: ...r provides an overview of the NiTek X lists the NiTek X s features and functions and covers warning information that should be read before using your NiTek X Content Overview 2 Features and Functions 3 Specifications 5 Warnings 6 When diving 7 ...

Страница 6: ...mple and direct communication between the diver and the computer With an easy to read display the diver has no problem following and reading the displayed information The NiTek X comes standard with a number of modes including a sleep mode time mode dive set mode dive plan mode log mode profile mode PC transfer mode dive mode external oxygen cell capabilities OC mode and CC mode Note It is extreme...

Страница 7: ...ts for altitudes up to 19 685 feet 6 000 meters The NiTek X displays a variety of data underwater including date time of day temperature current and maximum depths no decompression dive time elapsed and remaining time The NiTek X displays data specifically related to the use of Enriched Air Nitrox EANx and helium including fraction of oxygen FO2 setting fraction of helium FHe setting partial press...

Страница 8: ...Factors can be programmed to increase dive safety margins Special mode indicators makes it easy to determine what display mode or screen you are in at any time The NiTek X has a selectable backlight to illuminate the screen in all light conditions The NiTek X s memory capability enables it to hold and display log data for a minimum of 15 hours of dive time depending on settings Detailed dive profi...

Страница 9: ...al time from 0 to 48 hrs Diving time from 0 to 699 minutes Ascent rate warning 26 to 59 feet per minute 8 to 18 m Clock Accuracy 30 sec on average per month 24 hour display Thermometer Measuring range 40 F to 176 F 40 C to 85 C Accuracy 4 F 2 C Measurement interval Every second during dive mode Altitude Altitude function monitoring from 0 to 19 685 feet 6 000 m Battery Li MnO2 CR 123A 3V battery A...

Страница 10: ...ly accepted depth limits for recreational or technical diving Although the NiTek X is capable of calculating decompression stop requirements users must remember that dives requiring mandatory stage decompression carry substantially greater risk than dives made well within no decompression limits The NiTek X is designed for use by one diver at a time Divers should not share a single NiTek X or any ...

Страница 11: ...ely and in conjunction with other dive planning devices such as dive tables Do not rely on the NiTek X or any similar device as your sole means of avoiding decompression illness When diving Do not push the no decompression limits NDLs Make safety stops before ascending If you exceed the no decompression limits check your breathing gas supply at all stop depths The NiTek X does not monitor breathin...

Страница 12: ...Introduction NiTek X Dive Computer User Manual v1 1 8 ...

Страница 13: ...gas percentages 20 Setting the Maximum Depth Alarm 21 Setting the Dive Time Alarm 22 Setting Conservatism Gradient Factor 23 Setting the Computer for Metric or Imperial operation 24 Setting the Dive Profile Sampling Rate 24 Setting for Fresh or Salt Water use 25 Setting Screen Contrast 26 Setting Backlighting 26 Understanding Default Mode 27 Plan Mode 28 Computer Mode 30 Primary underwater screen ...

Страница 14: ...hat you are in either the appropriate O C or C C mode when programming your NiTek X computer Make sure that you review the dive plan mode for maximum depths and times for the mixes you are using During a dive Monitor the NiTek X throughout your dive for depth and time Monitor the Pressure Gas in Tissue PGT and Oxygen Limited Indicator OLI O2 loading bar graphs Pay attention to any alarms such as a...

Страница 15: ...has two buttons A mode and B set which are used to access the different modes and screens To use the buttons simply press the button once or hold the button down depending on what you are trying to do The correct procedure to use is clearly defined in each topic throughout the manual A mode button This button is used to select and scroll through the different modes such as time mode and locks in s...

Страница 16: ...ure settings alarm settings exposure to nitrogen and oxygen desaturation time and surface interval time These items are covered in Surface mode Upon Surfacing From a Dive Dive Option Set and Display mode and Altitude Operation 1 Date This is the month and day The first digit is the month and the second digit is the day For example 1 24 represents the twenty fourth day of January 2 Time of day This...

Страница 17: ...inutes Time can be displayed in 24 hour military format or 12 hour format When in 12 hour format an AM or PM appears on the screen 4 Seconds This is the seconds for the time of day To display the time and date Time and date information is displayed when the NiTek X is the Surface mode screen 1 To enter the Surface mode screen from any other screen repeatedly press button A C C or O C will be displ...

Страница 18: ...ld flashes 2 Press button B to 00 the seconds field or press button A to select another field such as the minutes field 3 Using buttons A and B set the year month day hour minutes seconds and whether you want the time displayed in 24 hour format For example 1 00 PM would be 13 00 in 24 hour format 4 When finished press button A for 2 to 3 seconds to return to surface mode ...

Страница 19: ...ing depth limit when in dive operation is 492 feet 149 meters Note The NiTek X can be set to operate in the Open Circuit O C or Closed Circuit C C mode depending on dive options set When the computer is in Dive Option Set and Display mode SET is displayed on the screen There are four screens that are used to set up all of the computer mode options Dive Option Display and Set fields for screen one ...

Страница 20: ...or 1 6 atmospheres Dive Option Display and Set fields for screen two 6 and 7 Max depth alarm This is an alarm that can be set to flash the maximum depth and screen backlight when a maximum depth is reached When the alarm is turned on the maximum depth alarm symbol is displayed 8 and 9 Maximum time alarm This is an alarm that can be set to flash the maximum time and screen backlight when a maximum ...

Страница 21: ...during a dive Dive Option Display and Set fields for screen four 13 Contrast This allows you to set the contrast ratio between the text and background screen 14 Backlight Timeout This allows you to change the length of time the backlight is lit when activated To enter Dive Set mode 1 Press button A until SET is displayed 2 Press button B to enter the dive set up option screen 3 Using the topics th...

Страница 22: ...flashing 3 Press button B to change the PO2 to the desired value that you want to set or change 4 Press button A to select the mix setting 5 Press button B to set the mix number 6 When finished press button A to return to the surface mode Setting Mix1 Through Mix7 Gas Percentages Note Be sure you have properly selected O C or C C mode before setting the breathing mix es you plan on using on your d...

Страница 23: ...ption Maximum Depth Alarm To exit press and hold button A for 2 to 3 seconds to return to surface mode Setting the Maximum Depth Alarm The NiTek X has a maximum depth alarm that is activated when the diver reaches the maximum depth that is set When the max depth is reached the screen backlight current depth and maximum depth indicators will flash until you have ascended to a depth that is shallowe...

Страница 24: ...ime alarm 1 Press button A until SET is displayed 2 Press button B to enter the dive set up option screen Mix1 is flashing 3 Repeatedly press button A until the screen changes and maximum dive time upper right of screen is flashing 4 Press button B to set the time when you want the alarm to sound 5 Press button A The Maximum Dive Time Alarm on off center right of screen flashes 6 Press button B to...

Страница 25: ...through the values and button A to select 5 When finished press button A to advance to the next option Metric or Imperial To exit press and and hold button A for 2 to 3 seconds to return to surface mode Setting the Computer for Metric or Imperial operation The NiTek X can calculate and give you values in Imperial units or Metric units When in Imperial depth values are expressed in feet When in Met...

Страница 26: ...capable of storing more information for more dives Note When the computer s memory storage is full it overwrites the oldest dive profile data stored with the new information To set the dive profile sampling rate 1 Press button A until SET is displayed 2 Press button B to enter the Dive Set Up option screen Mix1 is flashing 3 Repeatedly press button A until the screen changes and the Dive Profile S...

Страница 27: ... diving set the computer to give a contrast ratio that allows for easiest readability conditions The default ratio is 5 and ranges from 0 to 10 To set for Screen Contrast use 1 Press button A until SET is displayed 2 Press button B to enter the dive set up option screen Mix1 is flashing 3 Repeatedly press button A until the screen changes and the contrast number is flashing 4 Press button B to inc...

Страница 28: ...fault Mode Once the computer s gas mixes are programmed the settings are stored in the computer unless the battery is replaced When the battery is replaced all gas mixture settings change to 21 percent oxygen 00 percent helium and 79 percent nitrogen Note The computer will retain all decompression and dive log information when the battery is replaced Note Removing the battery when the dive compute...

Страница 29: ...3 meter increments Fifteen different dive plan depth increments can be displayed to a maximum depth of 170 feet 51 meters 2 No Decompression Limit NDL Depending on the depth displayed and the current FO2 setting the available no decompression limit up to a maximum of 200 minutes is displayed If the computer is in default mode a series of horizontal lines appears If the NiTek X calculates that ther...

Страница 30: ...based on the depth 4 When finished press and hold button A for 2 to 3 seconds to return to surface mode WARNING Do not plan dives to depths deeper than those for which the NiTek X is capable of displaying an available no decompression limit Doing so could cause you to exceed the no decompression limits or a limiting PO2 of 1 4 or 1 6 atmospheres This may increase your risk of decompression illness...

Страница 31: ...hile underwater there are two screens you can toggle between and you can switch to different gas mixes when needed Primary Underwater Screen When you enter the water the primary screen shows your depth remaining no decompression time limit dive time max depth PO2 for selected mix mix number O2 and HE percentages for gas selected and the OLI and PGT bar graphs Primary underwater screen view 1 1 Dep...

Страница 32: ...is remaining in minutes before you reach the no decompression limit This NDL time limit increases when you ascend and decreases when you descend 7 Mix number This is the mix number for which the computer is currently calculating dive data 8 O2 and HE percentages This is the oxygen and helium percentages programmed for the gas mix number that is selected 9 PGT bar graph This is how much nitrogen an...

Страница 33: ...The back light turns on and the second screen is displayed 2 Release button B to return to the primary diving mode screen Changing Gas Mixes Underwater Because the NiTek X has the ability to use seven different gas mixes during a dive you need the ability to switch between these mix settings while underwater When you switch mix settings the PO2 adjusts to reflect the current mixture you are breath...

Страница 34: ...ed with a gas mixture are available 3 Press button A to lock in the mixture and return to the primary diving mode screen Note You cannot lock in a mix if it causes you to exceed a PO2 of 1 4 or 1 6 atmospheres depending on what was programmed Changing Setpoints Underwater Because the NiTek X has the ability to be used with a closed circuit rebreather you can switch between different PO2 setpoints ...

Страница 35: ...he SP number flashes 3 Press button B to scroll through the setpoint numbers The setpoint value changes to reflect the PO2 for the selected mix and the O2 and HE percentages change to reflect the programmed mix Note Only setpoints that have been programmed with a gas mixture are available You can quickly scroll through the setpoints with button B 4 Press button A to lock in the new setpoint and re...

Страница 36: ...es you can restart the dive See Understanding Default Mode for more information Ascent Rate Warning The NiTek X assumes that you keep your ascent rate within the following limits Depth range Ascent rate 0 to 19 feet 0 to 5 9 meters 26 feet 8 meters per minute 20 to 58 feet 6 to 17 9 meters 39 feet 12 meters per minute 59 feet 18 meters or deeper 52 feet 16 meters per minute If you exceed these asc...

Страница 37: ...n the screen PGT Limit Warning The Pressure Gas in Tissue PGT limit warning indicates that you are approaching the no decompression limits When seven or more of the nine bars are displayed the PGT graph flashes If all nine bars are displayed the NiTek X will change to the decompression mode PGT limit warning bars flash on the screen Oxygen Limit Index OLI Warning The NiTek X s oxygen limit index O...

Страница 38: ...ower depth and all nine of the O2 s bars are displayed OLI continues to flash until the O2 bar graph drops to seven bars OLI limit warning bars flash on the screen Decompression Mode If you exceed the no decompression limits the computer enters decompression mode This indicates that you will have to limit your ascent time and enter a series of one or more decompression stops Caution Decompression ...

Страница 39: ...There are a maximum of nine bars When all bars are displayed it means that you are at or have exceeded the no decompression limits and have entered decompression Decompression Stop Violation Warning A decompression stop violation warning takes place when you ascend to a shallower depth than the indicated stop depth or if you do not spend sufficient time at the required depth before ascending When ...

Страница 40: ...d an actual bottom time of 699 minutes Accrue a total ascent time of over 999 minutes An out of range warning will cause the screen backlight to flash WARNING A NiTek X displaying an out of range warning is incapable of displaying other critical information such as depth time ascent rate PO2 OLI and deco stop violations and required decompression stops For this reason you should not under any circ...

Страница 41: ...e oldest dives are overwritten with the new dives This causes the log entry number assigned to an earlier dive to change 2 Max depth This is the maximum depth reached during the dive 3 Date This the month and day of the dive 4 Dive time This is the actual bottom time for the dive 5 FO2 and FHE gas percentages These are the FO2 and FHE gas percentages that you entered for the dive All calculations ...

Страница 42: ...te for more information The dive number and date of the dive are displayed when you scroll through the dives This makes it easy to find the dive profile you want to view 1 Dive log number This is the dive number that corresponds to the dive number when in log mode 2 Max depth This is the maximum depth reached during the dive 3 Dive time This is the actual bottom time for the dive To view a dive pr...

Страница 43: ...itial part of the sequence for calibration of an oxygen cell This shows that the oxygen cell has not been connected and will show a mV reading when it is connected 2 uncalibrated This shows that the oxygen cell has not been connected or calibrated to a standard gas mixture yet 3 CAL O2 This shows that the oxygen cell has been connected and is ready to be calibrated Oxygen analysis mode screen 2 4 ...

Страница 44: ...getting into the compartment 2 Repeatedly press button A until OXY is displayed 3 Press button B to enter the OXY analysis mode screen 0 mV Uncalibrated is displayed on the screen 4 Press button A CAL O2 is displayed on the screen 5 Press button B to enter calibrate mode of oxygen cell using a source of 100 oxygen for reference xx mV calibrated where xx is the mV reading of your oxygen cell and th...

Страница 45: ...nector Be sure to hold the computer with its left side facing down to minimize any water droplets from getting into the compartment 2 Connect the other end of the cable to an internet compatible PC or Mac computer with NiTek X Workbench and start the NiTek X Workbench program on the computer 3 Repeatedly press button A on the NiTek X until PC is displayed 4 Press button B to enter the PC transfer ...

Страница 46: ... is displayed the screen until the NiTek X calculates that it is no longer needed or after 24 hours have passed since the last dive Note If you are making repetitive dives you need to pay attention to your surface interval and use it in conjunction with plan mode This ensures that you stay within no decompression limits 1 Surface Interval Time This is the amount of time you have spent on the surfa...

Страница 47: ...the dive This drops as your surface interval time increases 4 PGT exposure bar graph This is the amount of residual nitrogen and helium in your body at the end of the dive This drops as your surface interval time increases WARNING It is recommended that you wait at least 24 hours following any dive before flying in an aircraft or driving to altitude Failure to allow sufficient surface interval tim...

Страница 48: ...esent had you spent the preceding 24 hours at the higher altitude By displaying residual nitrogen and a surface interval your NiTek X is merely reflecting this fact Prior to using the NiTek X at altitudes substantially above sea level you should find out what the actual altitude of your dive site is If the level of residual nitrogen calculated by the NiTek X is unusually high seven or eight bars w...

Страница 49: ...tenance Chapter 3 Care and maintenance Summary This chapter provides care and maintenance and battery information for the NiTek X Content Proper handling techniques 46 Low battery warning 47 Replacing the battery 47 ...

Страница 50: ...y read display and track depth information The NiTek X s Liquid Crystal Display LCD may darken if left in a hot environment such as on a car s dashboard It will return to normal once allowed to cool however extensive exposure to heat may shorten LCD life Cold weather can dim the LCD display Be aware that weather related changes in air pressure can cause incorrect display of altitude settings Be su...

Страница 51: ...o dead during a dive Caution All NiTek X functions may cease within two to three days of the low battery indication first appearing Always have a low battery replaced promptly A depleted battery that is left in a NiTek X for a long period of time may leak Replace battery promptly Replacing the battery Battery replacement is an easy operation that can be done by the user The battery must be replace...

Страница 52: ...y water droplets from getting into the battery compartment 3 Examine the battery and battery compartment for signs of corrosion Wipe off any sand or dirt from the cover and o ring using a cotton swab 4 Remove the old battery 5 Clean the new battery contacts with the pencil eraser 6 Remove the o ring from the cap Be careful not to damage the o ring 7 Clean the o ring and place a thin layer of silic...

Страница 53: ...roper handling techniques 49 clock 5 Computer mode 29 options 16 conservatism or gradient factor 18 22 Contrast 18 25 D date 12 14 log mode 40 date and time 3 deco symbol 37 decompression mode 36 decompression stop violation warning 38 default mode 26 surface mode 12 default warning 34 depth 3 27 29 maximum 29 stop depth 37 depth sensor 5 desaturation time 46 dive log 4 5 Dive Option Set and Displ...

Страница 54: ...th Alarm 17 21 Maximum Time Alarm 17 21 metric 4 Metric or Imperial 23 mix changing underwater 31 mix number 16 mixes 5 20 N NDL 27 30 no decompression limit 27 30 O OLI 30 46 options Computer mode 16 out of range warning 38 OXY analysis mode 42 OXY analysis mode entering 43 Oxygen Limit Index 30 46 Oxygen Limit Index warning 36 P PC transfer mode 4 44 entering 44 percentages mixes 20 PGT bar grap...

Страница 55: ...ing Rate 18 23 Screen Contrast 18 25 time and date 14 size and weight 5 sleep mode 12 SP 16 specifications 5 surface interval time 45 surface mode 12 45 Surface mode entering from another mode 12 T temperature 31 thermometer 5 time Dive Time Alarm 21 stop time 37 time and date setting 14 Time mode 14 time of day 12 14 31 W warnings 6 ascent rate 34 decompression mode 36 decompression stop violatio...

Страница 56: ...Index ...

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