Dive Rite NiTek Q CO8000, NiTek Q4 User Manual
Equipment for Serious Divers®
CO8000
NiTek Q
Computer
User Manual
CO8000 NiTek Q Computer User Manual_Nov 14 2011
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IMPORTANT WARNINGS
Read this manual carefully before diving with the NiTek Q. It is imperative that you fully understand the functions
and displays of the computer and that you are procient in their use prior to diving.
The NiTek Q is an electronic device and electronic devices can fail. NEVER dive this computer without a back up
device or dive tables.
Before using your NiTek Q it is extremely important that you read and understand each warning, as well as warnings and cautions that appear throughout the manual. Failure to do so could result in damage to or loss of equipment, serious personal injury, or death.
Before diving, you should have the proper training from a qualied instructor and obtain certication from a recognized training agency. Use of the NiTek Q in conjunction with Enriched Air Nitrox (EANx) requires that Q divers
also be trained and certied for Nitrox diving.
If you purchase the Trimix upgrade for your NiTek Q, you should have the proper training from a qualied instructor and obtain certication from a recognized training agency in these specialties.
If you purchase the CCR upgrade for your NiTek Q, you should have the proper training from a qualied instructor
and obtain certication from a recognized training agency in closed circuit rebreather diving.
The NiTek Q is not for commercial or military divers whose activities may take them beyond the commonly accepted depth limits for recreational or technical diving.
You should never share or trade your NiTek Q – or any other dive computer – during a dive. You should never lend
your dive computer to another diver until it fully “clears”, which means that no measurable residual nitrogen remains after previous dives and the computer no longer displays the “desaturation time” indicator. Your computer
gathers information during a dive that is applicable only to you. If you share or trade your computer with another
diver, your decompression limits will be inaccurate, which may cause decompression sickness (DCS).
You should use the same computer for all repetitive dives in the same repetitive dive series, thereby accurately
monitoring your total exposure to oxygen and nitrogen (and helium if you have upgraded to Trimix).
The NiTek Q does not physically measure the amount of nitrogen present in body tissues or the rate at which
nitrogen is absorbed or released. The NiTek Q monitors depth and time and uses this data to work a mathematical formula designed to emulate how individuals in good general health, whose physical conditions do not place
them at a higher risk of DCS, are assumed to absorb and release nitrogen from body tissues. This computer cannot compensate for factors such as age, obesity, dehydration, cold, or exertion, which experts believe place divers
at greater risk of DCS. If these factors apply to you, use the NiTek Q, any other dive computer, or dive tables with
greater caution.
You should never dive with Nitrox (EANx) unless you have personally veried the oxygen percentage in your tanks
and correctly entered the %O2 into your dive computer. Failing to verify the oxygen percentage or entering the
wrong percentage could lead to serious injury or death.
If you have upgraded your NiTek Q to Trimix, you should never dive with Trimix unless you have personally veried the oxygen and helium percentage in your tanks and correctly entered the% O2 and %HE into your dive
computer. Failing to verify the oxygen and helium percentage or entering the wrong percentages could lead to
serious injury or death.
You should never y after diving until you verify that no measurable residual nitrogen remains after previous
dives and the computer no longer displays the “desaturation time” indicator. Flying during the no-y time can
result in decompression sickness (DCS).
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Table Of Contents
WARNINGS..............................................................................................................................................................
Product Description............................................................................................................................................
Support...............................................................................................................................................................
Specications....................................................................................................................................................
Battery......................................................................................................................................................................
Using The NiTek Q................................................................................................................................................
Button Operation and Navigation.............................................................................................................
Sleep Mode........................................................................................................................................................
Surface Mode....................................................................................................................................................
Date and Time...................................................................................................................................................
Menus.......................................................................................................................................................................
Dive Option SET Mode...................................................................................................................................
PLAN Mode.............................................................................................................................................................
LOG Mode...............................................................................................................................................................
PROFILE Mode.......................................................................................................................................................
PC Mode..................................................................................................................................................................
Dive Mode...............................................................................................................................................................
Primary Underwater Screen.........................................................................................................................
Second Underwater Screen.........................................................................................................................
Changing Gas Mixes Underwater...................................................................................................................
Surface Mode (Upon Surfacing From A Dive)............................................................................................
Desaturation Time..............................................................................................................................
Surface Interval Time.........................................................................................................................
Oxygen Limit Index (OLI) Bar Graph............................................................................................
Pressure Gas in Tissue (PGT) Bar Graph......................................................................................
Altitude Operation...............................................................................................................................................
WARNINGS While in Dive Mode......................................................................................................................
Ascent Rate Warning.........................................................................................................................
P02 Limit Warning..............................................................................................................................
OLI (Oxygen Limit Index) Warning................................................................................................
Decompression-Stop Violation Warning....................................................................................
Care and Maintenance.......................................................................................................................................
Warranty Information.........................................................................................................................................
Accessories for Your NiTek Q............................................................................................................................
Appendix A - Trimix Upgrade...........................................................................................................................
Appendix B - CCR Upgrade...............................................................................................................................
Appendix C - Custom Gradient Factor Upgrade.......................................................................................
Appendix D - Compass Upgrade....................................................................................................................
CO8000 NiTek Q
How to Check The Charge Status..........................................................................................................
Charging Your Battery...............................................................................................................................
SET Screen One.............................................................................................................................................
Maximum Operating Depth (MOD)..................................................................................................
Programming Gas Mixes.......................................................................................................................
SET Screen Two.............................................................................................................................................
Setting the Maximum Depth Alarm...........................................................................................
Setting the Maximum Time Alarm................................................................................................
SET Screen Three..........................................................................................................................................
Setting Your Conservatism/Gradient Factor..............................................................................
Setting For Metric or Imperial Operation...................................................................................
Setting the Dive Setting Log/Prole Sampling Rate..............................................................
Setting for FRESH or SEA Water Use.............................................................................................
SET Screen Four...........................................................................................................................................
Setting Brightness Control...................................................................................................................
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PRODUCT INFORMATION
Congratulations on your NiTek Q computer purchase.
Your NiTek Q has been designed, manufactured, and tested for the highest possible performance and reliability. With
proper use and maintenance outlined in this manual it will provide you with many years of outstanding service.
Web Resources: As you read through the manual, watch for pointers and helpful tips from the Dive Rite
pros. To access our complete library, interactive Solution Finder, and helpful videos at
Dive Rite TV, go to www.DiveRite.com
For product updates and new product release notications, SIGN UP for the Dive Rite Newsletter
and follow us on Facebook at http://www.facebook.com/DiveRiteTechGear.
Product Description
This two-gas Nitrox dive computer is for recreational diving, and
provides information on depth, dive times, no-decompression
limits, decompression obligations, and nitrogen and oxygen absorption and elimination during all dive phases (including ascent,
surface interval times, and subsequent dives). Using the well established Buhlmann ZLH16 algorithm along with a default gradient
factor of 30/75, the NiTek Q has three pre-set GF settings to choose
from that allow for deep stops or shallow stops.
Housed in a mil-spec aluminum case with a mineral glass viewing
port, the OLED face provides an easy-to-read display for intuitive,
push-button navigation. The Q has an always-on screen and comes
with a number of modes including a power-saving sleep mode, SET
mode, PLAN mode, DIVE mode, LOG and PROFILE modes, PC mode
for planning dives and mixes on either a PC or a MAC, and a TIME
mode (which includes the Date).
Freedom of Choice
The NiTek Q gives you the freedom to choose additional features as your skills grow and your equipment changes. The
Q diver can upgrade to normoxic and hypoxic Trimix, closed circuit rebreather, digital compass, custom gradient factors, and the Workbench logbook program that allows you to upload your dives to any PC or MAC. You only pay for the
features you will use and can upgrade to additional features at any time. Contact us at Dive Rite at Qunlocks@diverite.
com to upgrade your NiTek Q and then simply connect to the desktop planner/workbench via any standard USB port to
unlock the features you have added.
Using Your Upgrades
Instructions on how to use your NiTek Q once you’ve unlocked any of the optional upgrades can be found in appendices
at the end of this manual. Because certain modes and screens will oer new information and/or require additional programming based on your upgrade, icons throughout the manual will indicate when to reference the appendix.
Trimix icon – refer to Appendix A
CCR icon – refer to Appendix B
It is extremely important that you carefully read and understand this manual before diving your NiTek Q.
SUPPORT: All Dive Rite products receive our commitment to excellence in customer service from your fellow divers.
Contact us with any questions at support@diverite.com or phone at 800-495-1046, Monday through Friday, 9 AM-4 PM,
Eastern Standard Time.
GF icon – refer to Appendix C
Compass icon – refer to Appendix D
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TECH SPECS
Includes:
Self-donning ladderlock wrist strap
USB Cable
120V US AC charger
Specications:
Algorithm: Buhlmann ZH-L16
Three pre-set gradient factors: 30/75 (default), 40/100 or 75/95
Optional custom gradient factor upgrade
Sample tissues: 16
Tissue half-lives: from 5 - 640 minutes
Size and weight
Length: 3.5” (8.9 cm)
Height: 1.25” (5.7 cm)
Thick: 1” (2.54 cm)
Weight: 9 oz. (255 g)
Display face
Yellow OLED always-on
Visible in complete darkness
Scratch-resistant mineral glass
Low battery indicator
Two user buttons
Visual alarms
Imperial or metric
Depth Sensor
Sea and freshwater calibration
Rated to a depth of 492 feet (150 meters) - measured every second
Accuracy: +/- 3% + 2 feet (0.5 meters)
Surface interval time: from 0 - 24 hours
Diving Time: from 0 - 699 minutes
Ascent rate warning: Depth Range Ascent Rate
0-19 feet (0-5.9 meters) 26 feet (8 meters) per minute
20-58 feet (6-17.9 meters) 39 feet (12 meters) per minute
59 feet (18 meters) or deeper 52 feet (16 meters) per minute
Clock
Accuracy: +/- 30 seconds on average per month
24-hour display
Daytime with seconds and hr.min.sec or total min.sec
Thermometer
Measuring range: - 40° F - 176 F (- 40° C - 85° C)
Accuracy: +/- 4° F ((2° C)
Measurement interval: every second during the dive
Altitude
Altitude function monitoring: from 0 to 19,685 feet (6,000 meters)
Battery
Lithium polymer 3.7V rechargeable
Average battery life: About 3 years (50 dives per year)
USB cable included
120v US AC charger
Breathing Gas
Mixes: 2
02 setting range: 8 - 99%
02 settings: 1% increments
Optional 3-gas normoxic Trimix ((21%-99% O2, 0-79% He)
Optional 7-gas hypoxic Trimix (8%-99% O2, 0-92% He)
Dive Log
Dive logging: Minimum of 15 hours, depending on settings
Prole sampling rates: 15 or 30 seconds
Uploadable via standard USB cable, included
Optional Workbench logbook program
Optional Accessories
Bungee wrist mount
Carrying case
Screen protector
Replacement USB cap / o-ring service kit
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USING THE NiTek Q
Battery and Charge Set-up
Your NiTek Q uses a rechargeable Lithium polymer battery
that is sealed inside the housing. You will need to check the
battery level and fully charge the battery before the rst use
(and afterwards, as needed). The best battery life will come
from keeping the battery charged. A full charge will last for
approximately 20 hours of dive time (depending on screen
brightness settings). The battery will last for several years of
normal use before gradually diminishing in capacity, and can
be replaced by Dive Rite or an authorized Dive Rite Dealer.
How To Check Battery Status
Press either the A or B button to bring the computer out of
sleep mode. The Home screen will display for a few seconds
and then automatically advance to the SURFACE screen.
The icon showing the battery charge status is displayed just
above the date. If the battery shows a full charge, you are ready
to program your computer and make a dive. If not, you will
need to charge it.
Charging Your Battery
The NiTek Q can be charged with either the included AC charger or from any USB connector. To access the charging port,
use a coin and turn the cap a quarter turn counter clockwise to align the groove on the battery cap with the groove on
the computer case. When this groove is aligned the battery cap is no longer sealed. Plug the charger into an AC outlet or
USB connection and then into the port on the computer. The battery symbol is animated to indicate charging. Periodically disconnect the charging cable and check the number of bars - a solid battery symbol indicates a full charge. Upon
full charge, reinsert the battery cap and using a coin turn the battery cap a quarter turn clockwise to seal. Do not dive
the computer unless the battery cap is sealed.
Battery Charge Indicator
SURFACE Mode Screen
MAINTENANCE TIP: To ensure your computer stays watertight, it is important to inspect the USB plug o-ring periodi-
cally. Check for dirt and grit and clean o the o-ring if anything is found. Use of the correct o-ring is critical to a proper
seal. Using the wrong o-ring could allow the computer to ood.
Never replace the o-ring with anything but one supplied by Dive
Rite in a service kit.
Using The NiTek Q
Button Operation and Navigation
Navigating the menus of the Q is intuitive: the left (A) button and
the right (B) button are used in the same way across all screens.
Press A to scroll
Press B to select
Press A to conrm the choice and advance to the
next option
A B
Sleep Mode
The computer automatically hibernates after 10 minutes of disuse to conserve battery use. To bring the computer out of
hibernation, press either A or B button. To extend the battery charge, put the computer back into hibernation whenever
it is not in use. To do this, press and hold the A button to return to the Surface mode screen. Then press the B button for
2-3 seconds.
HOME Screen
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USING THE NiTek Q
SURFACE Mode
The SURFACE mode is the NiTek Q’s default screen. At
the surface, the computer automatically returns to this
mode from any other screen after 20 seconds, (slightly
longer than 20 seconds when in prole and compass
modes). Upon surfacing from a dive, the computer also
returns to the SURFACE mode screen, and displays additional post-dive information (see page 16).
To manually return to the SURFACE mode, press and hold
the A button for 2-3 seconds.
Date
Battery Charge Indicator
Time
The SURFACE mode displays battery charge status, date,
time, choice of FRESH or SEA calibration, and the rst gas
mix you will use when diving.
MIX #
P02
SURFACE Mode Screen
02%
FRESH or
SEA
Calibration
Date and Time
IMPORTANT! The date and time must be correctly set in
order to accurately track your dives. Setting the date and
time enables the NiTek Q to keep track of dives chronologically. The internal clock is also used for decompression
calculations. If you travel to a dierent time zone, set the
local time before diving. The time and date will have to be
reset if the battery becomes completely discharged.
Date: This is the month and the day. The rst digit is the
month and the second digit is the day. The “07” represents
July and “12” represents the 12th day of the month. “2011”
represents the year.
Time: This is the time of day expressed in hours, minutes,
and seconds. Time can also be displayed in a 24-hour clock (military time). The “10” represents elapsing seconds, “19”
represents minutes after the hour, and “06” represents the hour of the day.
TIME Mode Screen
Setting the Date and Time
Setting the date and time are done in the TIME mode. You can enter or change each element in this mode.
From the SURFACE mode, scroll through the menus to the TIME mode screen pressing the A button. The seconds will be
ashing.
1. Press the B button to enter the TIME mode.
2. Press the B button to reset the seconds to 00.
3. Press the A button to scroll to minutes.
4. Press the B button to set the accurate time.
5. Press the A button to lock in your time. To exit, press and hold the A button for 2-3 seconds to return to the Sur face mode.
Continue setting the hours, year, day, and month using the A and B buttons as directed above.
To change to 24-hour (Military) time, press the B button when “PM” is ashing.
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MENUS
Menus
Dive Option SET and Display Mode
The dive option SET and display mode is where all “dive” settings are programmed including your P02 alarm for each gas,
%02, the maximum safe operating depth (MOD), an optional maximum depth alarm, a maximum dive time alarm, conservatism/gradient factor options, a sampling rate for the log book, the FRESH or SEA water option, and screen brightness
control. When the computer is in this mode, “SET” is displayed in the lower left hand corner of the screen.
There are four SET screens that are used to set up your entire dive planning options.
SET Screen One is where you will program your mixes, including the following options:
1. MIX Number – This is the mix number you are setting.
2. P02 Setting – This is the P02 setting for the mix num ber selected. It can either be 1.4 or 1.6.
3. F02 – This is the oxygen percentage for the mix num ber selected. The 02 range is 21%-99%.
Your maximum operating depth (MOD) is also displayed on SET
Screen One. The MOD is the safe operating depth (maximum)
for the mix selected and will automatically update to reect the
chosen P02 limit (either 1.4 or 1.6).
SET Screen One
To enter the Dive SET mode from the Surface screen:
1. Press the A button until “SET is displayed.
2. Press the B button to enter the dive set up option screen. The MIX number will be ashing.
Programming Gas Mixes
When you have entered the Dive SET mode and the MIX number is ashing:
1. Press the B button to change to the desired mix number that you want to set or change.
2. Press the A button to set the mix number. The computer will automatically advance to the P02 set/alarm option.
3. Press the B button to toggle between 1.4 and 1.6.
4. Press the A button to set the maximum P02 for this mix. The computer will automatically advance to the %02
option.
5. Press the B button to select your %02 for this mix.
6. Press the A button to lock in your %02 and the computer will automatically advance to SET screen two. To exit,
press and hold the A button for 2-3 seconds to return to the Surface mode.
NOTE: Up to two dierent gas mixes can be programmed, but if you are only using one mix, you only need to set MIX 1.
The NiTek Q starts the dive on the last gas mix used or viewed in the SET mode, not on MIX 1. Be sure to check and set
your mix number before your dive.
It is strongly recommended that you use either a secondary computer or dive tables as a backup to the NiTek Q.
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MENUS
SET Screen Two - The NiTek Q has maximum depth and time alarms
that can be set on SET Screen Two. These alarms will be activated
when the diver reaches selected presets. When the maximum depth
is reached, the current depth indicator will ash until you ascend to a
depth that is shallower than the maximum depth you have set. The
Maximum Depth alarm can be set from 0 – 492 feet (0-150 meters).
When the maximum dive time is reached, the dive-time and maximum dive-time alarm indicators will continue to ash until after you
surface.
Setting the Maximum Depth Alarm
SET Screen Two
1. Press the A button until “SET” is displayed.
2. Press the B button to enter the dive set up option
screen (SET Screen One).
3. Repeatedly press the A button until the screen changes to SET Screen Two and the maximum depth is ashing in
the upper left portion of the screen.
4. Press button B to select the depth at which you want the alarm to activate.
5. Press button A lock the depth and advance to the Maximum Depth Alarm “ON/OFF” indicator in the center left
portion of the screen. This will be ashing.
6. Press button B to toggle the alarm “ON” or “OFF”.
7. Press button A to lock your selection and advance to the Dive Time Alarm option. To exit, press and hold the A
button for 2-3 seconds to return to the SURFACE mode.
Setting the Maximum Dive Time Alarm
1. Press the A button until “SET” is displayed.
2. Press the B button to enter the dive set up option screen (SET Screen One).
3. Repeatedly press the A button until the screen changes to SET Screen Two and the maximum dive time is ash ing in the upper right portion of the screen.
4. Press button B to set the time when you want the alarm to activate.
5. Press button A to lock the time and advance to the Maximum Time Alarm “ON/OFF” indicator in the center right
portion of the screen. This will be ashing.
6. Press button B to toggle the alarm “ON” or “OFF”.
7. Press button A to lock your selection and advance to the Conservatism/Gradient Factor option. To exit, press and
hold the A button for 2-3 seconds to return to the Surface mode.
SET Screen Three – This SET screen allows you to choose one of three preset Conservatism/Gradient Factors, whether you
wish your computer to display depth in feet or meters (Imperial or Metric), the sampling rate for the computer log
and prole, and whether the computer will calibrate for FRESH or SEA water.
Setting Your Conservatism/Gradient Factor
The NiTek Q uses the Buhlmann ZLH16 algorithm, a default gradient
factor (GF) of 30/75, and two additional pre-set GF options that allow
for deep stops or shallow stops.
1. Press the A button until “SET” is displayed.
2. Press the B button to enter the dive set up option
screen (SET Screen One).
3. Repeatedly press the A button until the screen scrolls
through SET Screens One and Two and changes to SET
Screen Three. CONS2, CONS1, or CONS0 will be ashing
in the upper left portion of the screen.
SET Screen Three
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