Oceanic DataMax Sport, DataMax Sport DRB Owner's Manual
DataMax Sport
owner’s guide
(model DRB)
COPYRIGHT NOTICE
This owner’s guide is copyrighted, all rights are reserved. It may not, in whole or in part, be copied, photocopied, reproduced, translated, or reduced to any electronic medium or
machine readable form without prior consent in writing from Oceanic.*
TRADEMARK NOTICE
Oceanic, the Oceanic logo, Diving Essentials Redefined, DataMax, Graphic Diver Interface, Tissue Loading Bar Graph, Pre Dive Planning Sequence, and Variable Ascent Rate
Indicator are all registered and unregistered trademarks of Oceanic. All rights are reserved.
LIMITED TWO-YEAR WARRANTY
Oceanic guarantees, to the original purchaser only, that the DataMax Sport will be free of defects in materials and/or craftsmanship under normal scuba use for two years from date of
purchase, provided proper care and annual service are performed as described beginning on page 39 of this owner’s guide. Should your DataMax Sport prove to be defective for any
reason (other than those listed in the limitations section below) it will be repaired or replaced (at Oceanic’s discretion) free of charge excluding shipping and handling charges. This
warranty shall be considered void if the registration card is not filled out completely and mailed to Oceanic within 30 days of purchase, and/or if the annual inspection is not done
according to this owner’s guide. This warranty is non-transferrable and applies to the original purchaser only. All correspondence concerning this warranty must be accompa-
nied by a copy of the original sales receipt and a copy of the owner’s portion of the warranty registration card including the annual inspection record.
Maintaining warranty with annual Dealer Inspections
Once each year you must return the DataMax Sport to an Authorized Oceanic Dealer within 30 days of the original purchase date anniversary to keep the two
year limited warranty in force. Annual inspection includes verification of depth accuracy and proper general function. Labor charges for the annual inspection are not covered by the
warranty. You must provide a copy of the original sales receipt and a copy of the owner’s portion of the warranty registration card including the annual service record to obtain warranty
service. If you try to obtain warranty service for your DataMax Sport but have not sent in the registration within 30 days of purchase date, you will be charged a twenty-five dollar late
registration processing fee to reinstate the warranty. This charge can be avoided by mailing the registration card immediately after purchase.
STATEMENT OF LIMITATIONS
General
Warranty does not cover damage from accident, abuse, battery leakage, tampering, lack of proper care and maintenance and/or proper annual servicing. Modifications or repair by
anyone other than an Oceanic Sales & Service Center authorized to service the DataMax Sport will void the warranty. Oceanic will not be responsible for recovery or replacement of the
product in the event of loss or theft. Oceanic, its distributors, and retailers make no warranties, either expressed or implied, with respect to this product or its owner’s guide except those
stated in the preceding paragraphs. By purchasing this product you agree and understand that in no event will Oceanic, its distributors or retailers, be held liable for any personal
injuries resulting from its operation, or for any other damages whether direct, indirect, incidental, or consequential even if Oceanic is advised of such damages.
Some states do not allow the exclusion or limitation of implied warranties or liabilities for incidental or consequential damages, so the above limitation may not apply to you.
Instrument
Warranty does not extend to plastic gauge face, rubber boot, high pressure hose, air spool and hose-end o-rings, batteries, hose fitting corrosion, chrome loss, or
damage due to accident, abuse, modification, or tampering.
DECOMPRESSION MODEL
The programs within the DataMax Sport simulate the absorption of nitrogen into the body by using a mathematical model. This model is not magic, merely a way to apply a limited
set of data to a large range of experiences. The DataMax Sport dive computer model is based upon the latest research and experiments in decompression theory. Still, using the DataMax
Sport, just as using the U.S. Navy (or other) No-decompression Tables, is no guarantee of avoiding decompression sickness, i.e. “the bends.” Every diver’s physiology is
different, it even varies from day to day. No machine can predict how your body will react to a particular dive profile.
The DataMax Sport is intended for use by divers who have successfully completed a nationally recognized course in scuba diving. It must not be used by untrained persons who may
not have knowledge of the potential risks and hazards of scuba diving. You must obtain proper training before using the DataMax Sport if you have not already done so. You also must
read this owner’s guide completely before diving with the DataMax Sport.
DataMax Sport Owners Guide, Doc. No. 12-1868
ii
© 1994
* The blank Oceanic DiveLog in the reference section may be duplicated for personal use only, not for resale.
®
OWNER’S GUIDE OVERVIEW
I. THE DATAMAX SPORT IS EASY TO USE
You’ll see that just a quick glance at the “Sport” shows your total dive
status. The green, yellow, and red Graphic Diver Interface makes understanding the DataMax Sport extremely simple.
II. DETAILED OPERATION GUIDE
Detailed information on every mode and display of the DataMax Sport is
contained in this informative section.
III. HANDLING THE EXTREMES
Review this section carefully to learn how the DataMax Sport manages
extreme situations like decompression and deep diving.
IV. CARE & MAINTENANCE
Keep your DataMax Sport in tip-top condition by following the procedures
outlined for battery replacement, annual inspection, and other maintenance.
V. REFERENCE
Decompression theory, specifications, a blank Oceanic DiveLog you can
duplicate, glossary, and index; it’s all in the reference section.
WARNING - As with all underwater life support equipment, improper
use or misuse of this product can cause serious injury or death.
Read and understand this owner’s guide completely before diving.
Pay special attention to items
marked with this symbol
iii
iv
HINT:
See the
index on page
64 to find a
specific
subject
DataMax
®
SPORT
CONTENTS
I. THE DATAMAX SPORT IS EASY TO USE............................ 1
Introduction......................................... 2
II. DETAILED OPERATION GUIDE ............................................ 9
Operational Modes ............................ 10 The Sport At A Glance.......................24
Informational Displays ..................... 18
III. HANDLING THE EXTREMES............................................... 25
Maximum depth ................................ 26 Gauge mode ........................................33
Emergency decompression................ 27 Caution Zone ......................................34
Violation modes ................................. 28 What if your computer quits?............35
®
Conditional violation......................... 28 Operating temperature......................36
Permanent violations ........................ 30 Night diving/sharing ..........................37
IV. CARE & MAINTENANCE ..................................................... 39
Before the dive................................... 40 Low battery display............................44
During/after the dive......................... 41 Battery Replacement Procedure .......45
Annual inspections............................ 42 Annual Inspection Record ........... 69-70
Obtaining factory service.................. 43
V. REFERENCE......................................................................... 49
Multiple tissue tracking .................... 50 Quiz.....................................................58
No-decompression limits................... 52 Oceanic DiveLog ................................60
Maximum No-D dive profile ............. 52 Glossary ..............................................62
Specifications..................................... 56 Index ...................................................66
THE
DATAMAX SPORT
IS EASY TO USE
DataMax
SPORT
®
SURFACE
SURFACE
INTRODUCTION
The DataMax Sport was designed to be extremely easy to use and understand. This owner’s guide is divided into five sections designed to make it
easy to learn how to use the “Sport.” The first two sections will show you
how it performs in most diving situations. Section three describes extreme
condition performance such as deep or decompression diving. Sections four
and five present care & maintenance procedures and reference material.
Start here to begin learning about the DataMax Sport.
°
°
F
F
REGULATOR ATTACHMENT
If you have purchased the DataMax Sport in a console version, you will
need to have it attached to your regulator by an Authorized Oceanic Dealer.
FT
FT
ACTIVATING THE DISPLAY
You can activate the DataMax Sport by pressing and releasing the button
®
under its display (Fig. 1a). After a diagnostic check, it enters “Surface Mode.”
Fig. 1 – Surface Mode
2
a.
WARNING - Be sure to inspect your DataMax Sport prior to every
dive, checking for any signs of the entrance of moisture, damage to
the button membrane, or damage to the LCD display. If these or
other signs of damage are found, return the unit to an Authorized
Oceanic Dealer or Oceanic Parts & Service. DO NOT attempt to use
until it has received factory service.
PLANNING YOUR DIVE
Surface mode shows how many dives you have made, your depth, surface
interval, and residual nitrogen. Once a minute, it alternates with another
display called the “Pre Dive Planning Sequence” (Fig. 2). When planning
your next dive, the Pre Dive Planning Sequence provides adjusted no-decompression limits based upon previous dives made. The PDPS shows depths
from 30 to 160 feet in ten foot intervals and the available no-decompression
time for each. This makes dive planning extremely simple because you know
exactly how much time you can spend at each depth without making any
table calculations.
NDC
NDC
PLAN
PLAN
MAKING A DIVE
Once you enter the water, the DataMax Sport changes to “No-decompression Dive Mode” (Fig. 3). This mode displays dive number, nitrogen loading,
ascent rate and no-decompression (NDC) time remaining.
An “Alternate Dive Mode” replaces No-decompression Dive Mode every
15 seconds, displaying bottom time and maximum depth. The Alternate Dive
Mode is displayed for three seconds before switching back to the NDC mode.
USING THE “GRAPHIC DIVER INTERFACE”
To make it easy to check your dive status on the DataMax Sport, a colorcoded system of graphic displays is used. This “Graphic Diver Interface” is
FT
FT
DataMax
SPORT
®
®
Fig. 2 – Pre Dive
Planning Sequence
3
c.
a.
b.
Fig. 3 – No-Decompression
Dive Mode
4
made up of two bar graphs that have green, yellow and red markers to
indicate normal, caution, and danger zones, respectively. The two graphic
displays represent ascent rate and nitrogen loading.
When underwater, you can make quick status checks by glancing at the
two bar graphs and making sure that they are “in the green.” With one
quick glance you can make sure you’re not getting too close to the no-decompression limit or ascending too fast.
ASCENDING TO THE SURFACE
A graphic representation of nitrogen absorption can be seen in the
“Tissue Loading Bar Graph” (Fig 3a). This green, yellow, red bar graph
shows how close you are to the no-decompression limit. It “fills–up” with
segments as your depth and bottom time increase, simulating the absorption
of nitrogen. Upon ascent to shallower depths, the Tissue Loading Bar Graph
will begin to recede giving a visual representation of nitrogen off–gassing.
The TLBG also provides a way to easily manage decompression by indicating
four red “ceiling” depths. This is discussed fully in the “Handling the
Extremes” section beginning page 26.
When rising towards the surface, the “Variable Ascent Rate Indicator™”
(Fig. 3b) shows how fast you are ascending. The VARI will alert you with a
flashing display if you enter the red zone, which represents ascent rates over
60 feet per minute. Immediately slow your ascent whenever this is seen.
If you have not entered decompression, a safety stop made between 15-20
FT
FT
DEC
DEC
DataMax
SPORT
®
®
feet is strongly recommended as a standard procedure before completing your
ascent. Many divers do this to provide a wider zone of caution from the nodecompression limit. The Tissue Loading Bar Graph gives a visual representation of just how close you came to the no-decompression limit with a yellow
“Caution Zone” (Fig. 3c). It provides a further visual indication of how close
you are to decompression. This Caution Zone portion of the TLBG allows you
to make a decision regarding safety stop duration or necessity. While you
cannot provide a guarantee against the occurrence of decompression sickness,
you may choose your own personal zone of caution based on age, physique,
excessive weight, etc., to reduce the statistical risk.
EMERGENCY DECOMPRESSION
If your depth or bottom time is such that the Tissue Loading Bar Graph
enters the red zone, the DataMax Sport will switch to “Decompression Dive
Mode” (Fig 4) At this point, the display will change the NDC indicator to
DEC and the TLBG will indicate a decompression “ceiling” (Fig. 4a). You
must stay below the ceiling depth indicated or risk decompression sickness.
Decompression Time Remaining (Fig. 4b) will display the total time needed
to fulfill the decompression requirement. You must stay at or a few feet
below the TLBG indicated ceiling depth until the bar graph recedes into the
yellow Caution Zone before ascending any further.
a.
b.
Fig. 4 – Decompression
Dive Mode
5
PLANNING FOR THE NEXT DIVE
After reaching three feet upon ascent, the Surface Mode will display once
again. It alternates with the Pre Dive Planning Sequence after ten minutes
have elapsed. The Pre Dive Planning Sequence will show adjusted nodecompression limits based on the nitrogen absorbed during your last dive.
The longer the surface interval, the more dive time available in the PDPS.
IT’S REALLY JUST THAT SIMPLE!
The DataMax Sport is designed to help you stay out of trouble with a
minimum of effort reading the displays. The Graphic Diver Interface eliminates any confusion from looking at too many numbers. Just “keep it in the
green” and you’ll greatly reduce your exposure to decompression sickness.
WARNING – Using the DataMax Sport, just as using the U.S. Navy
(or other) No-decompression Tables, is no guarantee of avoiding
decompression sickness, i.e. “the bends.”
OTHER SPECIAL FEATURES
The DataMax Sport also helps you log your dives, dive at high altitudes, and
know when the minimum allowable surface time has elapsed to be able to fly,
according to UHMS guidelines. These special features are described on the
following pages.
6
LOGGING YOUR DIVES
Immediately after a dive, various information is stored in the DataMax
Sport’s memory that can be accessed in the “Dive Log Mode.” Recalling this
information gives you a chance to record it in your log book. Up to 9 dives
are stored and can be accessed by pressing the activation button (Fig. 5a).
Dive Log Mode will automatically scroll through all dives for the most
recent day of diving starting with the most recent dive first. The log displays
dive number, maximum depth, bottom time, and maximum ascent rate. It
also displays end–of–dive tissue loading (Fig. 5b). This is handy when making decisions about future dive plans.
b.
LOG
LOG
BOTTOM
BOTTOM
ALTITUDE DIVING
The DataMax Sport automatically compensates for decreased ambient
pressure when activated at high altitudes up to 14,000 feet. Its program
contains a high altitude algorithm that reduces no-decompression limits to
add a larger zone of caution. Whenever it is activated above 4,000 feet, it will
automatically recalibrate itself to measure depth in feet of fresh water.
KNOWING WHEN TO FLY
Due to the present lack of a complete dataset derived from actual human
testing, there are different recommendations cited by various scientific
organizations for the amount of time a diver should wait before flying after
MAX
MAX
FT
FT
DataMax
SPORT
®
®
a.
Fig. 5 – Dive Log Mode
7
DataMax
®
SPORT
Fig. 6 – Time-to-Fly Mode
8
diving. The DataMax Sport follows one of the more conservative of these,
cited by Divers Alert Network (DAN); that divers wait at least twelve hours
before flying in pressurized commercial aircraft, and at least 24 or more if
making repetitive multi-day or decompression dives. The DataMax Sport
easily tracks how much surface time has elapsed with the Time to Fly display.
The Time-to-Fly display (Fig. 6) begins a twenty hour countdown starting
four hours after a dive. After the timer reaches zero, twenty–four hours have
elapsed. You may choose when to fly according to the type of diving you have
done, consulting your DataMax Sport to determine the amount of surface
time that has elapsed. To learn more about flying after diving and DAN's
guidelines, see page 22.
DETAILED OPERATIONS GUIDE
®
The next section describes the DataMax Sport’s Operational Modes and
Informational Displays in detail, describing exactly what you can expect to
see above and under water. Refer to this section when you have specific
questions about DataMax Sport operation.
DETAILED
OPERATIONS
GUIDE
PLAN
PLAN
NDC
NDC
DEC
DEC
LOW
LOW
BATT
BATT
DataMax
SPORT
LOG
LOG
OPERATIONAL MODES
The DataMax Sport operates in ten different modes. The visual difference between modes is quite evident depending on when you view the display.
Even so, Mode Labels identify the various displays to eliminate confusion.
1. DIAGNOSTIC MODE/ACTIVATION
Diagnostic Mode is displayed immediately following activation. After
F
F
°
°
C
°
C
°
SURFACE
BOTTOM
SURFACE
BOTTOM
MAX
MAX
FT
FT
M
M
®
®
pressing and releasing the activation button (Fig. 7a), Diagnostic Mode will
display all “eights” followed by dashes, and then a countdown from 9 to 0. It
will then enter Surface Mode signalling a successful diagnostic check. During
the countdown, the Sport checks its display functions and battery voltage to
ensure everything is working properly.
WARNING - Never activate the DataMax Sport if the computer is
underwater. This may result in inaccurate depth and no-decompression time displays. Activation is not possible deeper than ten
feet underwater.
Fig. 7 – Diagnostic Mode
10
a.
If two hours elapse after activation without making a dive, the Sport will
deactivate to save battery power. Be sure to check your computer
before entering the water to ensure it doesn’t need reactivation.
During Diagnostic Mode, the DataMax Sport measures its own battery
voltage level. If there is not enough battery power to complete a day of
diving, the DataMax Sport will either deactivate itself or not activate at all.
WARNING - If the words “LOW BATT” appear immediately after
activation, Oceanic strongly recommends that you DO NOT dive
until you have obtained battery replacement - especially if you are
starting out on a multi-day dive trip. Although there will usually be
enough voltage to complete one full day of diving, the voltage level
can drop quickly when the batteries experience a sudden temperature change. (See battery replacement procedure on pages 45-48.)
2. SURFACE MODE
Surface Mode immediately follows Diagnostic Mode after initial activation (Fig 8). It also appears after a dive when you ascend shallower than 3
feet. Surface Mode is identified by the Mode Label “SURFACE” immediately
above the Surface Time display. Information available in Surface Mode is
Dive #, Surface Time, Depth, and the Tissue Loading Bar Graph.
3. PRE DIVE PLANNING SEQUENCE™ (PDPS) MODE
One minute after activation, the Pre Dive Planning Sequence will display
(Fig. 9). The PDPS displays the Mode Label “PLAN” at the top of the LCD.
This mode automatically scrolls through depths from 30 to 160 feet, in ten
foot increments, showing predicted no-decompression dive times based upon
your previous dive profiles. The PDPS automatically replaces Surface Mode
once each minute. The information displayed is Previous Dive #, Depth, and
No-decompression Dive Time.
Fig. 8 – Surface Mode
Fig. 9 – Pre Dive
Planning Sequence
11
WARNING – The Pre Dive Planning Sequence predicts only nodecompression times for subsequent dives. Depending on tank
size and air consumption, you may have
less time available
than
shown in the PDPS because of air limitations.
PDPS no-decompression times are displayed only for depths where there
is at least one minute available. This takes into account a descent rate of 75
feet per minute. Before a “clean” dive (no dives in 24 hours) the PDPS nodecompression limits are those found on page 50 in the Reference section.
NDC
NDC
FT
FT
DataMax
®
SPORT
Fig. 10 – No-decompression
Dive Mode
12
4. NO-DECOMPRESSION DIVE MODE
No-decompression Dive Mode appears when the diver descends deeper
than five feet (Fig. 10). It can be recognized by the “NDC” Mode Label to the
left of the Dive Time Remaining display. No-decompression Dive Mode
®
numerically displays Dive #, Depth, and NDC Dive Time Remaining. The
Graphic Diver Interface is also active, displaying the Tissue Loading Bar
Graph and Variable Ascent Rate Indicator.
5. ALTERNATE DIVE MODE
Displays of Maximum Depth and Bottom Time are not considered important enough to require constant display on the LCD. An “Alternate Dive
Mode” is used that switches back and forth with Dive Mode. No-decompres-
sion Dive Mode is replaced every 15 seconds with Alternate Dive Mode for
two seconds (Fig. 11). Alternate Dive Mode displays Maximum Depth (noted
by the Mode Label “MAX FT”, elapsed Bottom Time (“BOTTOM”), and
Temperature. You can easily tell when you are viewing the Alternate Dive
Mode because the Graphic Diver Interface bar graphs, and Dive #, disappear.
6. DECOMPRESSION DIVE MODE
The DataMax Sport will allow you to avoid, or easily manage, decompres-
sion. Before explaining further, read the following warning.
WARNING - Oceanic recommends the application of responsible
diving practices and does not recommend decompression diving
or diving deeper than 130 feet, as these practices will greatly
increase your risk of decompression sickness.
°
°
F
F
BOTTOM
BOTTOM
MAX
MAX
FT
FT
Decompression Dive Mode activates when the Tissue Loading Bar Graph
enters a red decompression zone (Fig. 12a). When this occurs, the Nodecompression time display switches from zero to required Decompression
time (Fig. 12b). The Mode Label changes from “NDC” to “DEC” on the left
of the Dive Time Remaining display. Decompression Dive Mode numerically
displays Dive #, Depth and Total Decompression Time. Besides continuing
to display the VARI bar graph, the Graphic Diver Interface shows the Tissue
Loading Bar Graph, that now acts as a Decompression “ceiling” indicator.
DataMax
SPORT
®
®
Fig. 11 – Alternate Dive Mode
13
DEC
DEC
b.
DataMax
®
SPORT
Fig. 12 – Decompression
Dive Mode
14
Decompression time displays the total number of minutes required at all
ceilings combined. The Tissue Loading Bar Graph displays the ceiling depth
that you must stay below.
After entering decompression, you must immediately change the focus of
your dive to getting back to the surface. Upon seeing the Tissue Loading Bar
Graph enter the 10 FT. STOP zone, you should immediately ascend to a
a.
depth slightly deeper than or equal to 10 feet. The amount of decompression
credit time you receive is dependent on depth, with slightly less credit given
the deeper you are.
Still, you must never ascend shallower than your decompression ceiling!
Doing so will place the DataMax Sport into a Conditional Violation Mode (see
page 28) and greatly increase your risk of decompression sickness. Often
FT
FT
while coping with surge and swell, it is difficult to stay at a chosen depth. To
ensure that you do not enter a violation mode you should stay close to, but no
shallower than, the decompression ceiling depth. If the DataMax Sport
®
requires a 10, 20, 30, or 40 foot decompression ceiling, you should stay deeper
than the depth indicated until the TLBG recedes into the next shallower
zone. When that occurs, you can ascend to, but not shallower than, the new
indicated ceiling.
Once you have performed the required decompression, the DataMax
Sport will switch to No-decompression Dive Mode allowing additional time
underwater. Though more time may be available, you must spend a portion
of this time continuing to decompress at a safety stop deeper than or equal to
10 feet. This will let the Tissue Loading Bar Graph recede further into the
yellow Caution Zone or green No Decom zone. At the end of all decompression dives, you must focus on reducing your tissue loading as much as
possible - by spending as much time as you can at your final safety stop and
on the surface - before your next dive.
7. VIOLATION MODES
The DataMax Sport enters one of three different Violation Modes when
you exceed its ability to predict an ascent procedure. These modes are
explained fully in the “Handling the Extremes” section beginning page 26.
8. GAUGE MODE
If the DataMax Sport enters a Permanent Violation Mode, it will operate
only in Gauge Mode on subsequent dives. The DataMax Sport removes
displays that no longer provide correct information because of the violation
(see page 33).
9. DIVE LOG MODE
Dive Log Mode can be accessed on the surface by pressing the button on
the front of the DataMax Sport (Fig. 13a). Pressing and releasing the button
will start the Automatic Dive Log Sequence. This mode displays information
of up to nine dives from your most recent day of diving. Dive Log Mode will
retain this information indefinitely until descent past five feet on your next
dive after twelve hours, or until the battery is removed. Dive Log Mode can
be recognized by the Mode Label “LOG” in the top of the display.
LOG
LOG
BOTTOM
BOTTOM
MAX
MAX
FT
FT
DataMax
SPORT
®
®
a.
Fig. 13 – Dive Log Mode
Primary Screen
15
DataMax
®
SPORT
Fig. 14 – Time to Fly Mode
16
Dive Log Mode displays Dive #, Maximum Depth (noted by Mode Labels
“MAX FT”), and total Bottom Time (underneath the Mode Label “BOTTOM”). It will also show the Tissue Loading Bar Graph reading that was
recorded at the end of the dive. It also shows the maximum ascent rate value
reached in the Variable Ascent Rate Indicator.
Dive Log Mode recalls dives from the last recorded to the first, so your
first dive will always be the last shown in the log sequence. When accessing
Dive Log Mode, you can choose to either press and release, or press and hold,
the button on the face of the DataMax Sport. As mentioned, pressing and
releasing the button initiates the Automatic Dive Log Sequence, showing
previous dives for about four seconds each.
Pressing and holding the button will freeze the information on the
display giving you a chance to write it down in your logbook (A sample
logbook page is provided on page 59 of this guide that can be photo duplicated
for this purpose). Releasing and then holding the button again will display
®
the next earlier dive, and so on.
NOTE: Following a 12 hour surface interval, all logged dives are cleared
when a subsequent dive is made. You must therefore record one day's dive
log information before using the computer again if you plan to maintain an
accurate dive log.
10. TIME TO FLY MODE
The longer you wait to fly after diving, the more you will reduce your
exposure to decompression sickness. The Time To Fly Mode begins display-
ing four hours after the last dive has ended to assist you with deciding when
enough surface time has elapsed to fly. It is part of the Pre Dive Planning
Sequence and shows the letter “F” with a countdown timer below that starts
at 20 hours (Fig. 14).
Twelve hours after the last dive, the Dive Counter resets to zero and the
PDPS stops automatically scrolling. Time to Fly Mode now displays continuously on the DataMax Sport, counting down from the remaining twelve hours
to zero. After a surface interval of 12 hours, you may choose to fly, provided
that your dive profile(s) did not enter decompression. If your diving could be
considered as decompression or repetitive, multi-day, it is strongly recommended that you wait the full 24 hours after your last dive to add a greater
degree of protection. (See page 22 for more information about flying after
diving and DAN's guidelines.)
WARNING: During the remaining 12 hours, the unit is in a countdown mode only, and must be reactivated before it can be used for
another dive.
TELLING THE DIFFERENT MODES APART
The DataMax Sport’s ten different modes are easy to tell apart. Each is
clearly marked with Mode Labels (Fig. 15) and occur at different times.
Unless you routinely dive to the extremes, you will rarely see Decompression
Dive, Violation, or Gauge Modes. Diagnostic and Dive Log Modes occur only
upon request after pressing the activation button. The only modes you will
see underwater are N0-Decompression or Decompression Dive and Alternate
LOG
LOG
PLAN
SURFACE
SURFACE
BOTTOM
BOTTOM
MAX
FT
FT
M
MAX
M
®
PLAN
NDC
NDC
DEC
DEC
LOW
LOW
BATT
BATT
DataMax
SPORT
®
Fig. 15 – Mode Labels
17
a.
TIMEDEPTH
b.
LOG
SURFACE BOTTOM
NDC
DEC
LOW
BATT
DataMax
®
SPORT
Fig. 16 – Display layout
18
PLAN
MAX
FT
M
Dive. Above water, you will view the Pre Dive Planning Sequence, Surface,
and Time to Fly Modes. Become familiar with all ten modes so that you
understand exactly what the DataMax Sport is telling you.
INFORMATIONAL DISPLAYS
Each DataMax Sport numeric or graphic display represents a unique
piece of information. The following section describes each display in detail.
Depth Display
The lowermost portion of the LCD (Fig. 16b) contains the Depth displays.
Depending on the mode that is active, you may see Depth or Maximum Depth
displayed in this area. These displays indicate depth from 0 to 249 feet in one
foot increments (or 0 to 76 meters in .5 meter increments for the metric
version).
®
Time Display
The top of the LCD (Fig. 16a) contains Dive Number and the Time
displays. Time displays may represent NDC or Decompression Dive Time
Remaining, Bottom, or Surface Times. The various time displays are shown
in hour:minute format (i.e. 1:06, one hour and six minutes not 106 minutes!). The colon that separates hours and minutes blinks once per second
only when the display is in “real time.” Elapsed Surface Time and Bottom
Time are real time displays. Dive Time Remaining is a calculated projection
of time and uses a solid (non-blinking) colon. This helps you tell the different
time displays apart.
GRAPHIC DIVER INTERFACE
MAX
FT
M
BATT
LOW
SURFACE BOTTOM
LOG
NDC
PLAN
DEC
DataMax
SPORT
®
®
™
Two different bar graphs are located around the perimeter of the
DataMax Sport LCD (Fig. 17). They are color coded green, yellow, and red to
denote normal, caution and danger zones, respectively. The Graphic Diver
Interface allows you to make quick status checks underwater of your nodecompression status and ascent rate. By keeping these bar graphs “in the
green” at all times, you'll greatly reduce your exposure to decompression
sickness. A detailed description of each graph follows.
Tissue Loading Bar Graph
The semi-circular graph found on the perimeter of the display is the
Tissue Loading Bar Graph (Fig. 17a). It monitors twelve different tissue
compartments simultaneously and displays the one that is highest. The
TLBG is divided into three main sections; green No Decom zone, yellow
Caution Zone (C.Z.), and red decompression zone. The red decompression
zone is further divided into four decompression “ceiling” zones of 10, 20, 30,
and 40 feet. By referring to the Tissue Loading Bar Graph, you can see a
visual representation of nitrogen absorption and use it to avoid or, if necessary, manage decompression. The Tissue Loading Bar Graph holds U.S.
Patent No. 4,882,687.
WARNING - Oceanic advocates responsible diving practices and
does not recommend decompression diving or diving below 130 feet.
a.
b.
Fig. 17 – Graphic Diver Inter-
face
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