Dive Rite NiTek Q4 User manual

Quick Start Guide
www.DiveRite.com
CO8400 NiTek Q4 Computer QS Guide__Feb 2, 2012

Navigating the menus of the Q4 is intuitive:
the left (A) button and right (B) button are
used in the same way across all screens.
Ato scroll
Bto select
Ato confirm the choice and advance
to the next option.
To return to the Surface Mode Screen:
and hold the Abutton for 2-3 seconds.
To switch from O/C to C/C modes:
the Aand Bbuttons simultaneously
for 5 seconds.
If no buttons are pressed within about 20 sec-
onds, the screen will return to the surface mode.
To return the computer to hibernation:
the Bbutton for 2-3 seconds.
Menus
Dive Option SET Mode
The dive option SET and display mode is where
all “dive”settings are programmed including
your P02alarm for each gas (either 1.4 or 1.6),
%02, %HE, an optional maximum depth alarm,
The NiTek Q4 has an always-on OLED screen
that returns to a sleep mode (hibernation)
after 10 minutes.
either A or B button to bring it out
of hibernation.
The Home screen shows the serial number, all
unlocked features, and the software version.
The Surface screen is the default screen, which
will appear ten seconds following activation.
The Surface screen displays battery charge
status, date, time, choice of FRESH water or SEA
calibration, choice of O/C (open circuit) or C/C
(closed circuit) mode, and the rst gas mix you
will use when diving.
Getting Started
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CO8000 NiTek Quick Start Guide www.diverite.com
Congratulations on your Dive Rite NiTek Q4 purchase.
This Quick Start Guide is intended to familiarize you with the basic functions of this computer. It is not a
substitute for the user manual found in our library at www.DiveRite.com. You MUST read the NiTek Q4 user
manual in its entirety before diving this product.
The NiTek Q4 is an electronic device and electronic devices can fail. NEVER dive this computer without a
back up device or dive tables.
Before you dive your Q4, you will need to fully charge the battery. The computer can be charged with the
included AC charger or from any USB connector. To access the charging port, use a coin and turn the cap 1/4 turn
counter clockwise to align the grooves on the battery cap and the computer case. Remove the cap. Plug the charger
into an AC outlet or USB connection and then into the computer port. The animated battery symbol indicates charg-
ing. When fully charged, reinsert the battery cap and using a coin turn the cap 1/4 turn clockwise to seal.
Do not dive the computer unless the battery cap is sealed.
AB
Software
Version
Unlocked
Features
Serial
Number
Home Screen
Surface Mode Screen
a maximum dive time alarm, conservatism/cus-
tom gradient factor options, a sampling rate for
the log book (either 15 or 30 second intervals),
the FRESH or SEA water option, and brightness
control.
To get to the SET Mode Screen from the Surface
Mode Screen:
the Abutton.
SET Mode Screen
Programming Gas Mixes
the Bbutton. The MIX number will be
ashing “1.” To select Mix 1:
the Abutton, which will lock in your rst
mix and then scroll to the P02alarm option.
the Bbutton to toggle between 1.4 and
1.6 P02 alarm.
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CO8000 NiTek Quick Start Guide www.diverite.com
Menus: SET Mode continued
the Abutton to set your P02alarm. The
computer will automically advance to your %02
gas option.
the Bbutton to select your %02. The
computer will then advance to your %HE option.
the Abutton to select your %HE.
NOTE: Up to 7 dierent gas mixes can be programmed, but if
you are only using 1 mix, you only need to set MIX 1.
Additional Settings
Maximum Depth Alarm
Maximum Dive Time Alarm
Conservatism/Gradient Factor
Metric/Imperial
Maximum Depth and Time Alarms
If you do not wish to set a Maximum Depth Alarm,
continue to press the A button to scroll through this
menu. If you wish to set a depth alarm:
the Bbutton until your reach your
desired maximum depth.
the Abutton to select the depth, and
the Bbutton to select “ON.” The com-
puter will advance to the Maximum Dive Time
Alarm option.
If you do not wish to set a Maximum Dive Time Alarm,
continue to press the A button to scroll through this
menu. If you wish to set a Dive Time alarm:
the Bbutton until your reach your
desired dive time.
the Abutton to select the time, and
the Bbutton to select “ON.” The com-
puter will scroll to the Conservatism/Gradient
Factor option.
Conservatism/Gradient Factors
The NiTek Q4 uses the Buhlmann ZLH16 algorithm,
a default gradient factor of 30/75, and two addi-
tional pre-set GF settings to choose from that
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SET Mode Screen
SET Mode Screen
DiveProfile Sampling Rate
Fresh/Sea Water
Brightness Control
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LOG is where your logged dives are stored.
allow for deep stops or shallow stops. An optional
upgrade allows for custom gradient factors to be set.
the Bbutton to choose your GF:
CONS 2= 30/75 (default)
CONS 1= 40/100
CONS 0= 75/95
Custom GF
the Abutton to select your GF. The
computer will then scroll to the ashing Impe-
rial/Metric option.
Imperial/Metric
the Bbutton to toggle to either ft (Impe-
rial) or m (Metric).
the Abutton to set your option. The
computer will then scroll to the sampling rate
option for your dive log.
Sampling Rate (for Log Book and Prole)
the Bbutton to toggle to either 15 sec-
onds or 30 seconds.
the Abutton to set your selection. The
computer will then scroll to the calibration option
for either FRESH or SEA water.
FRESH or SEA
the Bbutton to toggle to either FRESH
water or SEA.
the Abutton to set your option. The
computer will then advance to additional
screens.
Brightness Control
Upon entering the SET screen, MIX 1 is ashing.
the A button repeatedly until the Brightness
number is ashing.
the Bbutton to change the brightness.
When nished, press the A button to advance to
the next SET option.
PLAN
LOG
PROFILE
theAbuttontoscrollto additional screens.
the Bbuttonto activate the screen.
Continue pressing the B button to change depths
for your NDL.
theBbutton to activate thescreen. Continue
pressing the B button to scroll through logged dives.
-OXY TIME/
PC DATE
COMPASS
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Additional Screens
PLAN displays the NDL (no decompression limit)
based on your programmed gasses for a dive.

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CO8000 NiTek Quick Start Guide www.diverite.com
the Bbutton to activate the screen.
Continue pressing the B button to scroll through
your logged proles.
the Bbutton to activate the screen.
“0 mV Uncalibrated”is displayed.
theAbutton.“CALO2”isdisplayedonthescreen.
the Bbutton to enter the calibrate mode
of the oxygen cell, using a source of 100% oxygen
for reference. “xx mV calibrated” (where xx is the
mV reading of your oxygen cell) and the oxygen
percentage is displayed on the screen.
the Abutton for 2-3 seconds to return to
the Surface mode.
both the A and B buttons for 3-4 seconds
to set the computer to the C/C (closed-circuit)
mode. It will display “EXT” instead of “SP” (set-
point), indicating that it’s reading the P02level of
the external oxygen cell.
theAbuttontoscrolltothe Compass screen.
and hold theBbutton while holding the
computer in a horizontal position. Holding the
unit flat, smoothly rotate the computer twice
in a 20-second period. Following this exercise, a
“calibration complete” message will be displayed.
PROFILE is where graphic proles of each dive are
stored.
* See you local Dive Rite dealer to purchase the Fischer connection cable
required to plug into the CCR unit.
OXY - The NiTek Q4 allows you to set an internal
set point and plug in an external 4th cell to directly
monitor the rebreather loop 02.* To use the 4th
cell, it must rst be calibrated. This is done on the
surface, exposing the cell to pure 02.
PC - Workbench dive software allows the Q4 diver to
perform dive planning or gas mixes on either a PC or
MAC. An optional upgrade to the Workbench Logbook,
which allows you to upload dive data and view dive
proles, is due to be released in mid-2012.
COMPASS - This optional upgrade gives you a digital
compass that must be calibrated before using.
COMPASS Mode Screen
Go to www.DiveRite.com for a step-by-step video showing compass
calibration on Dive Rite TV.
TIME - From the Surface Mode Screen scroll through
the menus using the A button to the TIME screen.
The seconds will be ashing.
Continue setting hours, year, day, and month using
the A and B buttons as directed above. To change to
24-hour time:
Dive Mode
Dive Computer Mode: The Dive Computer Mode
is automatically entered when the computer enters
the water. It begins performing its dive calculations
once you descend below 5 feet (1.5m). While in
diving mode, the computer calculates and displays
information about your dive and prompts you with
safety stop information and warnings, if needed.
When diving, there are two screens you can toggle
between, and you can switch to dierent gas mixes,
when needed.
To switch to the Second Underwater screen:
Changing Gas Mixes:
WARNINGS: There are several visual warnings you
should be alert to and become familiar with. Refer to
your NiTek Q4 user manual at www.DiveRite.com for
additional information. These include:
Ascent-Rate Warning
P02 Limit Warning
PGT Visual Alarm
OLI Warning
Decompression Warning
Deco-Stop Violation Warning
the Bbutton to reset to 00.
the Abutton to scroll to minutes.
the Bbuttonto set the accurate time.
the Bbutton when “PM” ashes.
the Bbutton
Primary Underwater Screen: Displays depth,
remaining no-decompression time, dive time,
max depth, mix P02, 02and HE percentages, mix
number, and PGT (pressure gas in tissue) and
OLI (oxygen limit indicator) bar graphs (graphic
represenations of your “CNS clock”).
Second Underwater Screen: Displays current
depth, dive time, temperature and conservatism
(gradient) factor.
the Abutton and the MIX number will ash.
theBbuttonasneededtoselectmixnumber.
O2,HE, and P02will change per theprogrammed mix.
the Abutton to lock the mixture and return
to the primary screen. A mix cannot be locked in if it
causes you to exceed pre-programmed 1.4 or 1.6 ATM.
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800-495-1046
www.DiveRite.com
Copyright © 2011 Lamartek, Inc. dba Dive Rite
This manual is copyrighted by Lamartek, Inc. dba Dive
Rite. You may not reproduce, translate, transcribe, or
transmit any part of this manual without express,
written permission from Lamartek, Inc. dba Dive Rite.
Using Your NiTek Q4
The following is a checklist of general things you should pay attention to before, dur-
ing, and after a dive.
Before A Dive:
During A Dive:
After A Dive:
Be sure the computer is charged. The Q4 can be charged from any USB con-
nection or from its included charger.
Ensure that the USB and 4th cell caps are secure.
Check that the proper time and date are set.
Check that the proper mixes and modes are set; be sure you’re in the appropri-
ate O/C or C/C mode when programming.
Review the dive plan for maximum depth, times, and for mixes you plan to use.
Monitor your NiTek Q4 throughout the dive for depth and time.
Monitor the Pressure Gas In Tissue (PGT) and Oxygen Limit Indicator (OLI) bar
graphs.
Heed all alarms or warnings.
Follow the no-decompression limits, or complete any displayed decompres-
sion schedule.
Monitor Surface Interval Time if making another dive.
Follow desaturation and no-y guidelines.
Review your dive using the log book and prole modes.
NOTE: The Q4 defaults to a sleep mode (or hibernation) after 10 minutes. The screen
display is the biggest drain on the battery. You can put the computer back to sleep by
pressing the B button for 3-5 seconds. To reawaken the computer press either A or B
button.