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Care and maintenance 

NiTek Plus Dive Computer User Manual 

49 

Proper handling techniques 

The NiTek Plus is constructed to withstand the most demanding 
diving conditions. It is, however, a high precision tool, which 
requires proper care. 

Caution: 

Failure to follow these handling techniques may result 

in damage to the NiTek Plus. 

• 

Do not store the computer in hot and/or humid 
environments. The pressure transducer is sensitive to both 
heat and humidity. If impaired, it may cause incorrect 
altitude or depth readings. 

• 

When in hot and/or humid environments, dip the computer 
in water for several minutes to cool it to room temperature 
before using it. If it is cold, allow the computer to warm to 
room temperature. Do not take it underwater immediately 
after doing so. 

• 

Do not transport your NiTek Plus on an aircraft or take it to 
altitude while it is sealed in an air-tight container. Doing so 
may interfere with its ability to correctly read, display, and 
track depth information. 

• 

The NiTek Plus’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. 

• 

Be aware that weather-related changes in air-pressure can 
cause incorrect display of altitude settings. Be sure to check 
indicated altitude settings against actual altitude before use. 
Your NiTek Plus is not to be disassembled by anyone other 
than Dive Rite or its authorized dealers. Unauthorized 
disassembly will violate the warranty. 

• 

If the NiTek Plus does not appear to be functioning properly, 
do not use it to dive. Return it to your authorized Dive Rite 
dealer for repair. 

• 

The NiTek Plus should not come in contact with solvents or 
any type of chemical substances 

Summary of Contents for Dive Rite

Page 1: ...User Guide www diverite com Date of purchase NiTekPlusDiveComputer NiTekPlusDiveComputer...

Page 2: ......

Page 3: ...s battery depletion or other conditions resulting from misuse negligence alteration accident or unauthorized repair To make a claim under this warranty the owner must have registered his her warranty...

Page 4: ...started 10 Accessing display modes and screens 11 Time display mode 12 Dive option set and display mode 15 Plan mode 23 Alarm display and set mode 26 Dive computer mode 28 Gauge mode 37 Log mode 38 P...

Page 5: ...ry This chapter provides an overview of the NiTek Plus lists the NiTek Plus s features and functions and covers warning information that should be read before using your NiTek Plus Content Overview 2...

Page 6: ...easy to read display providing simple 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...

Page 7: ...the push of a button The NiTek Plus is capable of functioning up to a depth of 328 feet 100 meters when in dive computer mode and 656 feet 200 meters when in gauge mode The NiTek Plus automatically ad...

Page 8: ...can be displayed in fresh or salt water equivalents Special mode indicators makes it easy to determine what display mode or screen you are in at any time The NiTek Plus has a back light to illuminate...

Page 9: ...rom 0 to 599 minutes Ascent rate warning 26 to 59 feet per minute 8 to 18 m Thermometer Measuring range 23 F to 104 F 5 to 40 C Accuracy 4 F 2 C Measurement interval Every minute Clock Accuracy 30 sec...

Page 10: ...e of the NiTek Plus in conjunction with Enriched Air Nitrox EANx requires that divers be trained and certified for Nitrox diving The NiTek Plus is not intended for use by commercial or military divers...

Page 11: ...r factors apply to you use the NiTek Plus and other dive computers or dive tables with even greater caution Little is known regarding the exact nature and causes of decompression illness also known as...

Page 12: ...ter Take a back up dive computer or dive tables along with a separate means of monitoring depth and dive time Be aware that the NiTek Plus makes assumptions regarding residual nitrogen based on altitu...

Page 13: ...computer mode 15 Setting Mix1 and Mix2 percentages 16 Setting the safety factor 17 Setting for fresh or salt water use 17 Setting the dive profile sampling rate 18 Setting the computer for metric or...

Page 14: ...and mix2 If you are using gauge mode make sure it is set to gage 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 P...

Page 15: ...nd screens To use the buttons simply press the button once or hold the button down depending on what you are trying to do What procedure to use is clearly defined in each topic throughout the manual L...

Page 16: ...our format When in 12 hour format an A or P appears on the screen indicating that it is AM or PM 3 Dual time This is an alternate time that can be set for a different time zone see Setting an alternat...

Page 17: ...ate time see Setting an alternate time or Swapping primary and alternate time 2 Press Select to select the seconds field The seconds field flashes 3 Press Set to 00 the seconds field or press Select t...

Page 18: ...eld with the alternate time This is useful when traveling to a different time zone The local time can be displayed in the primary time field and the time zone you traveled from can be displayed in the...

Page 19: ...ion settings that pertain to an upcoming dive The operating depth limit when in dive operation is 328 feet 100 meters FT 1 9 4 5 6 2 3 7 8 Dive option display and set fields 1 Dive operation 2 Mix1 FO...

Page 20: ...must set the breathing mix you plan on using on your dive Mix1 is considered the first breathing gas you plan on using during a dive and mix2 is considered the second breathing gas you are using on a...

Page 21: ...e are two possible settings 0 and 1 Setting the safety factor to 1 results in shorter no decompression limits and longer decompression stop times Setting Description 0 Calculations are based solely on...

Page 22: ...samples and stores is used in profile mode or when the data is uploaded to a personal computer There are two sampling rates to choose from 15 second and 30 second The 15 second sampling rate enables...

Page 23: ...ween feet FT and meters M Understanding FO2 default In your entry level Enriched Air Nitrox training you learned that among the greatest risks Nitrox EANx use poses is CNS oxygen toxicity One of the w...

Page 24: ...fault is whether you set one or both mixes for air or Nitrox If you set either mix for air an FO2 of 21 percent the computer assumes that subsequent dives will be made using air This means that the mi...

Page 25: ...is recommended that you use either a second Nitrox capable computer or another tracking method such as Nitrox tables Using gauge mode If you do not want to use the NiTek Plus as a normal dive computer...

Page 26: ...splay mode To select and setup gauge operation 1 Press Mode until the arrow points to D S at the bottom of the screen 2 Press Lock Dive flashes 3 Press Set to select gauge operation Gage is displayed...

Page 27: ...layed is 30 feet 9 meters You can advance the depth in 10 foot 3 meter increments Fourteen different dive plan depth increments can be displayed to a maximum depth of 160 feet 48 meters 2 No decompres...

Page 28: ...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 atmospheres 1 6 atmospheres for deco This may incr...

Page 29: ...e surface interval time the longer the no decompression limit time 2 Depth This is the depth used to plan the dive 3 PO2 This is the PO2 for mix1 at the depth displayed To enter plan simulation mode 1...

Page 30: ...ing of every hour When set the hourly alarm beeps once on the hour 2 1 1 Daily and hourly alarm on off symbols When the alarm symbol is displayed the daily alarm is turned on When the bell symbol is d...

Page 31: ...ter User Manual 27 The hour field flashes 3 Press Set to set the hour time 4 Press Select The minutes field flashes 5 Press Set to set the minutes time 6 Press Lock Note The daily alarm symbol automat...

Page 32: ...n and warnings if needed While underwater there are three screens you can toggle between and you can switch from mix1 to mix2 when needed You can also activate the back light feature Primary underwate...

Page 33: ...partial pressure of O2 at your current depth It is based on the FO2 settings for mix1 or mix2 6 Residual nitrogen N2 bar graph This is how much nitrogen the computer assumes your body has absorbed The...

Page 34: ...nd time of day are displayed 2 1 1 FO2 setting This is the FO2 setting for the gas mix that is selected 2 Time of day This is the current time of day To display the third diving mode screen 1 Press an...

Page 35: ...n Safety stop indication The NiTek Plus has an automatic three minute safety stop feature built in On any dive when you descend below 33 feet 10 meters and then ascend above 20 feet 6 meters safety st...

Page 36: ...ning PO2 limit warning Oxygen limit index OLI warning Decompression warning Decompression stop violation warning Out of range warning Default warning If either mix1 or mix2 is in default at the beginn...

Page 37: ...creen The warning displays until you slow your ascent to an acceptable rate or you reach 5 feet 1 5 meters If the ascent rate is violated twice the slow symbol appears in log mode after the dive PO2 l...

Page 38: ...seconds If you do not ascend to a shallower depth and all eight of the O2 s bars are displayed the alarm sounds twice again and OLI flashes again OLI continues to flash until the O2 bar graph drops t...

Page 39: ...pression stops 5 Nitrogen N2 bar graph This is how much nitrogen the computer assumes your body has absorbed There are a maximum of nine bars When all bars are displayed it means that you are at or ha...

Page 40: ...e of 599 minutes Accrue decompression stops depths of greater than 90 feet 27 meters Accrue a decompression stop time of more than 99 minutes Accrue a total ascent time of over 999 minutes The out of...

Page 41: ...mode operation see Using gauge mode While in gauge mode underwater there are three screens you can toggle between The primary screen displays depth and time The second screen displays maximum depth a...

Page 42: ...ek Plus s screen when in log mode Because of the amount of information the NiTek Plus stores there are three pages that you can toggle between for each dive Each dive is assigned a number beginning wi...

Page 43: ...logged information 3 Dive number This is the dive number for a particular day of diving 4 Date This is the month and day of the dive 5 Descent time This is the time you started the dive indicated by a...

Page 44: ...ercentages that you entered for the dive All calculations were based on these percentages To view a dive log 1 Press Mode until the arrow points to LOG at the bottom of the screen 2 Press Set to scrol...

Page 45: ...ive profile sampling rate 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 2 1 3 4...

Page 46: ...tom of the screen 2 Press Select to scroll down through the logged dives To fast scroll press and hold Select 3 Once a dive profile is selected the computer automatically progresses through the differ...

Page 47: ...log information to your personal computer Note For details on using the NiTek Plus Docking Station refer to the documentation that came with the unit To enter PC transfer mode 1 Press Mode until the...

Page 48: ...includes Desaturation time Surface interval time This information is displayed on both screens until the NiTek Plus calculates that it is no longer needed or after 24 hours have passed since the last...

Page 49: ...ime increases 4 Nitrogen N2 exposure bar graph This is the amount of residual nitrogen in your body at the end of the dive This drops as your surface interval time increases WARNING It is recommended...

Page 50: ...3 281 feet 1000 meters 2 297 to 5 906 feet 700 to 1 800 meters 4 593 to 8 530 feet 1 400 to 2 600 meters 7 546 to 19 685 feet 2 300 to 6 000 meters Flashing symbols Out of range above 19 685 feet 6 0...

Page 51: ...t altitude the NiTek Plus s residual nitrogen bar graph may show that there is excess nitrogen present even though you may not have made any dives in the preceding 24 hours If you have obtained the al...

Page 52: ...User Manual 48 Chapter 3 Care and maintenance Summary This chapter provides care and maintenance and battery information for the NiTek Plus Content Proper handling techniques 50 Low battery warning 52...

Page 53: ...ur NiTek Plus on an aircraft or take it to altitude while it is sealed in an air tight container Doing so may interfere with its ability to correctly read display and track depth information The NiTek...

Page 54: ...e NiTek Plus Do not use the NiTek Plus in hyperbaric chambers if the device is not fully submerged in water Always rinse the computer with freshwater after use Store the NiTek Plus in a cool dry locat...

Page 55: ...tions All NiTek Plus functions may cease within two to three days of the low battery symbol first appearing Always have low batteries replaced promptly A depleted battery that is left in a NiTek Plus...

Page 56: ...Care and maintenance 52 NiTek Plus Dive Computer User Manual...

Page 57: ...28 options 15 using 15 current depth 29 D daily alarm 26 date and time 3 decompression 4 decompression stop violation warning 35 decompression warning 34 default mode time mode 12 default warning 32 d...

Page 58: ...NDL 23 28 nitrogen log mode 39 no decompression limit 23 28 O OLI 29 45 log mode 39 options computer mode 15 out of range warning 36 oxygen limit index 29 45 oxygen limit index warning 34 P PC transfe...

Page 59: ...rface interval time 44 surface mode 44 T temperature 29 log mode 39 thermometer 5 time dual time 13 swapping primary and alternate time 14 time and date 13 time and date setting 13 time mode 12 settin...

Page 60: ...Index 56 NiTek Plus Dive Computer User Manual...

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