Oceanic DATA 100 owner's guide

Data 100

owner's guide

RESPONSIBLE COMPUTER DIVING

◆ Always Plan Each Dive

◆ Always Limit Your Dive to the Level of Your

Training and Experience

◆ Always Make Your Deepest Dive First

◆ Always Make The Deepest Part Of Every Dive First

◆ Check Your Computer Often During the Dive

◆ Do A Safety Stop On Every Dive

◆ Allow Adequate Surface Interval Between Each Dive

◆ Allow Adequate Surface Interval Between Each Day

Of Diving (12 Hours Or Until Your Computer Clears)

DATA100

Read And Understand This Owner's Guide Thoroughly Before Using the Data100.

Responsible

iii

Pay special attention to items marked with this Warning symbol.

WARNINGS:

• The Data100 is intended for use only by recreational divers who have successfully completed a nationally recognized course in scuba diving.

• It is intended only for no decompression diving, NOT intentional decompression 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 scuba certification before using the Data100 if you have not already done so.

• It is NOT for use by military and commercial divers.

• It should NOT be utilized for any competitive, or repetitive square wave or decompression diving, as it is intended solely for recreational use and no decompression multilevel diving.

• As with all underwater life support equipment, improper use or misuse of this product can cause serious injury or death.

• Never participate in sharing or swapping of a dive computer.

• Conduct your dives in such a manner so as to insure that you continuously check the computer's proper function.

• Read and understand this owner’s guide completely before diving with the Data100.

• If you do not fully understand how to use this dive computer, or if you have any questions, you should seek instruction in its use from your authorized Oceanic dealer before you utilize this product.

LIMITED TWO-YEAR WARRANTY

DATA100

Oceanic guarantees, to the original purchaser only, that the Data100 will be free of defects in materials and/or craftsmanship under normal recreational multilevel scuba use for two years from date of purchase, provided proper care and annual service are performed as described within this owner’s guide. Should your Data100 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 will be considered void if the registration card is not filled out completely at the time of purchase 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 accompanied 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.

Once each year you must return the Data100 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.

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, or improper use of the Data100. Modifications or repair by anyone other than an Oceanic Sales & Service

Center authorized to service the Data100 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. In consideration of the sale of the Data100 to you, 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.

Warranty does not extend to plastic gauge face, o-rings, batteries, or damage due to accident, abuse, modification, or tampering.

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 / 2002 Design. * The Surface Time/Mode, Plan Mode, No Decompression Time, Decompression Stop Time, Dive Log, Low Battery, Bottom Time, Maximum Depth, Ascent Rate, and Caution Zone icons are protected by copyright, and are trademarks of Oceanic.

Data100 Owner's Guide, Document Number 12-1966

2002 Davis Street

San Leandro, Ca. USA 94577

510/562-0500

TRADEMARK NOTICE

Oceanic, the Oceanic logo, Data100, the Data100 logo, Oceanglo, DataLog, DataLink, Diving Essentials Redefined, 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.

PATENT NOTICE

U.S. Patents have been issued, or applied for, to protect the following design features: Graphic Diver Interface, Pre Dive Planning Sequence, Data Sensing and Processing Device (U.S. Patent no. 4,882,678), Tissue Loading Bar Graph (U.S. Patent no. 4,882,687), and Variable Ascent Rate Indicator Bar Graph (U.S. Patent no. 5,156,055).

DECOMPRESSION MODEL

The programs within the Data100 simulate the absorption of nitrogen into the body by using a mathematical model. This model is merely a way to apply a limited set of data to a large range of experiences. The Data100 dive computer model is based upon the latest research and experiments in decompression theory. Still, using the Data100, 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, and can even vary from day to day. No machine can predict how your body will react to a particular dive profile.

* The blank Oceanic DiveLog in the Reference section may be duplicated for personal use only, not for resale.

CONTENTS

THE DATA100 IS EASY TO USE ......................................................................1

Introduction .......................................................................................................2

Regulator Attachment..................................................................................................4

Activating the Display ..................................................................................................4

Making a Dive ...............................................................................................................5

After the Dive ...............................................................................................................8

Knowing When to Fly...................................................................................................9

Altitude Diving ...........................................................................................................10

LCD Display Legend ........................................................................................11

Operational Displays.......................................................................................12

DETAILED OPERATIONS GUIDE ................................................................13

Informational Displays ...................................................................................14

Depth Display .............................................................................................................14

Time Display ...............................................................................................................15

Graphic Diver Interface™...............................................................................16

Tissue Loading Bar Graph® (TLBG) .........................................................................16

Variable Ascent Rate Indicator™ (VARI) ..................................................................17

DATA100

vii

CONTENTS (CONTINUED)

Operational Modes ..........................................................................................18

Activation & Diagnostic Mode ...................................................................................18

Surface Mode ..............................................................................................................20

Pre Dive Planning Sequence™ (PDPS) .....................................................................21

No Decompression Dive Mode ...................................................................................22

Decompression Dive Mode .........................................................................................24

Violation Modes ..........................................................................................................27

Gauge Mode ................................................................................................................27

Ascending to the Surface............................................................................................27

Dive Log Mode ............................................................................................................28

Time to Fly Mode........................................................................................................30

External Access Mode (EA)........................................................................................31

Backlight Feature ............................................................................................32

HANDLING THE EXTREMES........................................................................33

Emergency Decompression ............................................................................34

Caution Zone (TLBG) ...................................................................................... 36

Exceeding Maximum Operating Depth ........................................................ 37

Violation Modes................................................................................................39

Conditional Violation Mode .......................................................................................39

viii

CONTENTS (CONTINUED)

Delayed Violation Mode..............................................................................................40

Immediate Violation Mode.........................................................................................42

Gauge Mode ................................................................................................................43

Permanent Violation ..................................................................................................44

Unexpected Loss of Displayed Information.................................................44

Sharing the Data100........................................................................................45

Operating Temperature ..................................................................................45

CARE & MAINTENANCE................................................................................47

Care and Cleaning ...........................................................................................48

Annual Dealer Inspections & Factory Service ............................................ 50

Obtaining Factory Service..............................................................................51

Battery Life.......................................................................................................52

Low Battery Condition ...................................................................................53

Battery Removal .........................................................................................................53

Battery Installation ....................................................................................................55

Flooded Battery Compartment ..................................................................................56

Inspection....................................................................................................................57

Returning the Module To Its Boot.............................................................................57

DATA100

CONTENTS (CONTINUED)

REFERENCE ....................................................................................................59

More About Flying After Diving ....................................................................60

More About Altitude Diving ...........................................................................61

Multiple Tissue Tracking................................................................................62

No Decompression Limits............................................................................... 64

Maximum No Decompression Dive Profile ..................................................64

Decompression Violation Limits ................................................................... 67

Repetitive Decompression Diving.................................................................67

Responsible Computer Diving .......................................................................69

Specifications ...................................................................................................70

Dive Log ............................................................................................................73

Glossary.............................................................................................................74

Index ..................................................................................................................77

Data100 Service Record.................................................................................. 80

THE DATA100

EASY TO USE

DATA

INTRODUCTION

Welcome to Oceanic and thank you for choosing the Data100!

Your new Data100 presents the information that you need before, during, and after your dives using Oceanic's intuitive combination of easy to read digital displays and unique identification icons.

Tissue loading of nitrogen and ascent rate are presented as segmented bar graphs alongside color coded reference indicators that bring quick focus to these two important status displays.

As you progress through this instructional guide, you will become familiar with all of the unique functions and features available and see examples of the displays that you could expect to see in the Data100's various operational modes.

100

DATA

100

The initial time that you invest becoming acquainted with your new Data100 will be returned as you enjoy your underwater activities with the comfort that your familiarization affords.

The Data100's wide array of features are described in detail throughout the pages that follow. Due to the importance that they be understood thoroughly prior to using the Data100, some information will be refreshed as you proceed. Relax and read through the complete guide. Know your Data100!

It is extremely important that you:

• Read this owner's guide in sequence and understand it completely before attempting to use the Data100.

• Check the Data100 frequently during your dive.

• You must also be a trained diver, certified by a recognized training agency. Remember that the rules you learned in your basic scuba certification course still

apply to the diving you will do while using a dive computer - some will become even more important. Technology is no substitute for common sense, and a dive computer only provides the person using it with data, not the knowledge to use it.

Be a RESPONSIBLE DIVER at all times.

WARNING: Inspect your Data100 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.

Data100

REGULATOR ATTACHMENT

DATA

100

Fig. 1 - Surface Mode

DATA

100

Fig. 2 - Pre Dive

Planning Sequence

If you have purchased the Data100 in a console version, you will need to have it attached to your regulator first stage by an Authorized Oceanic Dealer.

ACTIVATING THE DISPLAY You activate the Data100 by pressing and releasing the control button located

below the display (Fig. 1a). Depressing the button during the Dive Mode will activate the display's Oceanglo™ backlight. After a diagnostic check that lasts about 10 seconds, it enters the pre dive Surface Mode signified by the Surface Mode icon (Fig. 1b). Also displayed will be the number "0" indicating that no dive has been made since activation. The surface time display will start counting up from 0:00. If no dive is made within 2 hours (2:00), the unit will automati-

cally shut off. After displaying the Surface Mode for approximately 10 seconds, the Data100

automatically changes to a Plan Mode (Fig. 2) referred to as the Pre Dive Planning Sequence or PDPS signified by the PDPS icon (Fig. 2a). The PDPS

displays a sequence of depths from 30 to 160 feet (9 to 48 meters) in 10 foot (3 meter) increments. Each depth is displayed with its corresponding available adjusted no decompression limit for 3 seconds. Upon completion of the Sequence, the Surface Mode is displayed, then the PDPS, etc.

WARNING: The Data100 must be manually activated and be in

DATA

100

the Surface Mode or PDPS Mode prior to start of a dive. The unit will not activate automatically by immersion in water.

MAKING A DIVE

Once you enter the water and descend to a depth below 5 feet (1.5 m)., the Data100 changes to the No Decompression Dive Mode (Fig. 3) signified by the No Decompression icon (Fig. 3a). Displayed are current depth, elapsed dive time (and the Elapsed Dive Time icon), no decompression dive time remaining, maximum depth reached during the dive (and the Max Depth icon), nitrogen loading (as the Tissue Loading Bar Graph), and ascent rate (as the Variable Ascent Rate Indicator bar graph).

To make it easy to check your dive status on the Data100, a color coded system of graphic displays is used for representation of tissue nitrogen loading and ascent rate. This Graphic Diver Interface™ (Fig. 4) consists of two segmented bar graphs appearing alongside green, yellow and red perimeter sections that signify normal, caution, and danger zones, respectively.

When underwater, you can quickly focus on the two bar graphs and making sure that they are in the green. You can quickly verify that you’re not getting too close to the no decompression limit or ascending too fast.

Data100

DATA

100

Fig. 3 - No Decompression

Dive Mode

Fig. 4 - Graphic Diver

Interface

DATA

100

Fig. 5 - Tissue Loading Bar

Graph (TLBG)

DATA

100

Fig. 6 - Variable Ascent Rate

Indicator (VARI)

The Tissue Loading Bar Graph® (Fig 5) represents nitrogen loading, showing your relative no decompression or decompression status. As your depth and bottom time increase, segments will fill the graph to form an arc around the perimeter of the LCD. As you ascend to shallower depths, this bar graph will begin to recede, indicating that additional no decompression time is allowed for multilevel diving. The TLBG also assists you with managing decompression by indicating six red 'ceiling' stop depths. This is explained in detail in the Handling the Extremes section.

The TLBG gives a visual representation of just how close you are to the no decompression limit (the 12 o'clock position of the TLBG) with a yellow Caution Zone (Fig. 5a). 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.

When rising towards the surface, the Variable Ascent Rate Indicator™ (Fig.

6) shows how fast you are ascending. The Variable Ascent Rate Indicator (VARI) will alert you with flashing segments if you enter the red zone, which represents ascent rates faster than 60 feet (18 meters) per minute. Immediately slow your ascent whenever this is seen.

Even if you have not entered decompression, a safety stop made between 15-20

feet (5-6 meters) is strongly recommended as a standard procedure before

DATA

100

DATA

100

completing your ascent. Many divers do this to provide a wider zone of caution from the no decompression limit.

If your depth or bottom time is such that the TLBG enters the red zone, the Data100 will switch to the Decompression Dive Mode (Fig. 7) signified with the flashing Decompression Dive Mode icon (Fig. 7a). A decompression stop ceiling will be indicated by the TLBG, and the Stop Ceiling icon (Fig. 7b). Digital displays are current depth, current required decompression stop depth and time for that stop depth, and total required ascent time to the surface, that includes total required decompression stop times and vertical ascent time calculated for a rate of 60 feet (18 meters) per minute.

You must stay at, or slightly below, the ceiling stop depth indicated until the TLBG recedes into the next shallower zone before ascending any further, or you will increase your risk of decompression sickness.

After displaying the Decompression Dive Mode for 12 seconds an Alternate Display (Fig. 8) appears automatically for 3 seconds. The two displays will

continue to alternate while you are in the Decompression Dive Mode. The alternate display replaces required stop depth and time information with maximum depth and elapsed dive time. Also, the Stop Ceiling icon is replaced by the Max Depth (Fig. 8a) and Elapsed Dive Time icons (Fig. 8b).

Data100

Fig. 7- Decompression Dive

Mode

Fig. 8- Decompression Dive

Mode - Alternate Display

DATA

100

AFTER THE DIVE

After reaching 3 feet (1 meter) upon ascent, the Surface Mode display (Fig. 9) will replace the Dive Mode display. After 10 minutes in the Surface Mode, and at once each minute afterward, the Surface Mode display will alternate with the Pre Dive Planning Sequence (PDPS). The PDPS will show 'adjusted' no decompression limits based on the nitrogen calculated to have been absorbed during your last dive. Calculated dive times displayed by the PDPS will increase as the

real time surface interval increases after completion of a dive.

Fig. 9 - Surface Mode

DATA

100

Fig. 10 - Dive Log Mode

Immediately after a dive, various information is stored in the Data100’s memory and can be viewed by accessing the Dive Log Mode (Fig. 10). This gives you a opportunity to record it in your log book before it is eventually overwritten by subsequent data. Your latest 12 dives are stored and can be viewed by pressing the control button.

Dive Log Mode signified by the Dive Log icon (Fig. 10a) will automatically scroll through the latest 12 dives, starting with the most recent dive first. The Log displays the dive number (#), surface interval prior to the dive, maximum depth

(and Max Depth icon), elapsed dive (bottom) time (and Elapsed Time icon), and maximum ascent rate (VARI) attained at any time during the dive. It also displays end of dive tissue loading (TLBG). This is handy when making decisions regarding subsequent dive planning.

KNOWING WHEN TO FLY

DATA

100

Due to the present lack of a complete data set 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 diving. The Data100 follows one of the more conservative of these, cited by Divers Alert Network (DAN); that divers wait at least 12 hours before flying in pressurized commercial aircraft, and at least 24, or more, hours if your profiles included repetitive multi-day or decompression dives. More about flying after diving and DAN's guidelines is presented on page 54 in the Reference section.

The Data100 tracks how much surface time has elapsed since you surfaced from your latest dive. The Time to Fly Mode begins a 24 hour countdown that starts 10 seconds after a dive. During the first 12 hours, the countdown appears for several seconds at the beginning of the PDPS (Fig.11).

During the second 12 hours of the countdown, only the word FLY and the counter will be displayed (Fig. 12). During this second period, depressing the control button will reactivate the Data100, replacing the Time to Fly countdown with the Surface Display and scrolling PDPS.

WARNING: Battery removal and replacement will clear the Time to Fly countdown

Data100

Fig. 11 - Time to Fly Mode

(First 12 hours)

DATA

100

Fig. 12 - Time to Fly Mode

(Last 12 hours)

DATA

100

ALTITUDE DIVING

The mathematical model within the Data100 accounts for the reduced No Decompression time available at higher elevations based on NOAA (National Oceanic and Atmospheric Administration) guidelines. When diving in high altitude lakes or rivers from 2,000 to 14,000 feet (610 to 4,268 meters), the Data100 will adjust automatically, providing corrected depth and reduced No Decompression times.

Also, when above 2,000 feet (610 meters), depth calibration of the unit is automatically changed to read in feet of freshwater rather than feet of seawater. The Data100 will not activate at altitudes above 14,000 feet (4,268 meters).

More about altitude diving and NOAA guidelines is presented on page 55 in the

Reference section.

WARNING: Until it has shut itself off, you must not use the Data100 at a different altitude than the altitude where it was

originally activated. Doing so will result in an error equal to the difference in barometric pressure, and possibly a false dive mode with erroneous data. Battery removal and replacement will cause the Data100 to reset.

Data100

DATA

100

LCD Display Legend

1. Tissue Loading Bar Graph (TLBG) (Green - No Decompression zone)

2. TLBG - (Yellow - Caution zone)

3a. TLBG - (Red - 10 foot/3 meter stop ceiling) 3b. TLBG - (20 foot/6 meter stop ceiling) 3c. TLBG - (30 foot/9 meter stop ceiling) 3d. TLBG - (40 foot/12 meter stop ceiling) 3e. TLBG - (50 foot/15 meter stop ceiling) 3f. TLBG - (60 foot/18 meter stop ceiling) 4a. Variable Ascent Rate Indicator (VARI) -

(Green zone - rate safe)

4b. VARI - (Yellow zone - rate excessive) 4c. VARI - (Red zone - rate Too Fast)

5. Icon - Operating Mode - (See Detail A)

6. Icon - Low Battery

7. Icon - Log Mode

8. Icon - Elapsed Bottom Time

9. Icon - Deco Stop Ceiling

10. Control Button

11. Infrared Interface Ports (Factory Use)

12. Icon - Maximum Depth

Detail 'A' - Operating Mode Icons Surface PDPS

No Deco Dive

Deco Dive

DATA

100

DATA

100

Surface Mode PDPS

DATA

100

DATA

100

DATA

100

DATA

100

Dive Log Mode

DATA

100

DATA

100

Deco - Alt Display

Operational Displays

Time to Fly

Conditional ViolationDeco DiveNo Deco Dive

DETAILED

OPERATIONS

GUIDE

INFORMATIONAL DISPLAYS

Each Data100 numeric or graphic display represents a unique piece of informa-

tion. It is imperative that you understand the formats, ranges, and values of the information represented by the Data100's displays to avoid any possible misunderstanding that could result in error. This section describes each display in detail.

DATA

100

(No Decompression Mode)

DATA

100

(Decompression Mode)

Fig. 13 - Depth Displays

Depth Display

During a dive, the Current Depth display, located in the upper portion of the LCD (Fig. 13a), indicates depths from 0 to 330 feet (99.5 meters) in 1 foot (.5 meter) increments. In the event that you descend deeper than 330 feet (99.5 meters), this display will show three dashes to indicate, until you ascend to 330 feet (99.5 meters) or shallower, that you have gone 'out of range'. In the Surface or Dive Log modes, the Dive Number replaces the current depth display.

A second depth display located in the lower left portion of the LCD (Fig. 13b) indicates the Maximum Depth reached during that dive. In the event that you descend deeper than 330 feet (99.5 meters), this display will only show three dashes for the remainder of that dive and as the Max Depth in the Dive Log for that dive.

During a Decompression Dive the required Ceiling Stop Depth replaces the Maximum Depth display (Fig. 13c). However, Maximum Depth will appear for 3

DATA

100

seconds when the screen toggles to the Alternate display once every 15 seconds while in the Decompression Mode.

Time Display

The Main Time display, located in the center of the LCD (Fig. 14a), indicates elapsed Surface Time, theoretical Dive Time Available during the PDPS, No Decompression Dive Time Remaining, or Total Ascent Time required depending on the mode that the Data100 is in at the time.

A second time display, located in the lower right portion of the LCD (Fig. 14b), indicates Elapsed Dive (bottom) Time, or Decompression Stop Time for the current stop ceiling indicated as identified by the Elapsed Dive Time and Ceiling Stop icons, respectively.

Time displays are shown in hour:minute format (i.e. 1:06 represents one hour and six minutes, not 106 minutes!). The colon that separates hours and minutes blinks once per second when the display is indicating real time such as elapsed Surface Time or Dive (bottom) Time. Dive Time Available, No Decompression Dive Time Remaining, or Total Ascent Time required are calculated projections of time and use a solid (non-blinking) colon to indicate that they is counting down, rather than counting up.

DATA100

Fig. 14 - Time Displays

DATA

100

Fig. 15 - TLBG

GRAPHIC DIVER INTERFACE

™

Two bar graphs referred to as the Graphic Diver Interface™ are located around the perimeter of the Data100's LCD. 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 no decompression status and ascent rate. Keeping these bar graphs in the green at all times will reduce your exposure to decompression sickness and the effects of an excessive ascent rate.

Tissue Loading Bar Graph® (TLBG)

The Tissue Loading Bar Graph® (TLBG) represents nitrogen loading, showing your relative no decompression or decompression status. As your depth and bottom time increase, segments will add to the graph in an arc beginning from the lower left. As you ascend to shallower depths, the TLBG will begin to recede, indicating that additional no decompression time is allowed for multilevel diving. The TLBG also assists you with managing decompression by indicating six 'ceiling' (stop) depths, which are explained in more detail in the Handling the

Extremes section. The TLBG, located around the outside edge of the LCD (Fig. 15), monitors 12

different nitrogen compartments simultaneously and displays the one that is in control of your dive. It is divided into a green No Decompression zone, a yellow Caution zone, and a red Decompression zone. The red Decompression zone is

further divided into 6 Decompression 'ceiling' zones representing 10FT/ 3M,

DATA

100

20FT/ 6M, 30FT/ 9M, 40FT/ 12M, 50FT/ 15M, and 60FT/ 18M stop depths.

WARNING: Oceanic advocates responsible diving practices consistent with your individual level of formal training and experience, and does not recommend decompression diving or diving below 130 feet (39 m).

Variable Ascent Rate Indicator™ (VARI)

The Variable Ascent Rate Indicator™ (VARI), located along the bottom of the LCD screen (Fig. 16), is provided to help you to avoid excessive ascent rates by providing a visual representation of ascent speed, rather than just showing that you are ascending too fast.

The LCD displays 5 triangular segments, beginning from the left side, that may be considered an ascent rate speedometer. The actual speeds that the VARI segments represent are shown above Fig. 16. When your ascent rate exceeds 60 feet (18 meters) per minute, the VARI segments will enter the red zone and flash once per second until your ascent speed is slowed.

A legend of the LCD is provided at the end of this section Ensure that you are familiar with all displays prior to using your Data100.

DATA100

Segments = Speed 0 = 0 to 20 fpm (0 to 6 mpm) 1 = 21 to 30 fpm (6.5 to 9 mpm) 2 = 31 to 40 fpm (9.5 to 12 mpm) 3 = 41 to 50 fpm (12.5 to 15 mpm) 4 = 51 to 60 fpm (15.5 to 18 mpm) 5 = 61+ fpm (18.5+ mpm)

Fig. 16 - VARI

OPERATIONAL MODES

Icon a - operating (Dive) mode b - Low Battery warning c - Dive Log mode d - Ceiling (Deco Stop) e - Elapsed Dive Time f - Maximum Depth

DATA

100

Fig. 17 - Icons

The Data100’s different operating modes are easy to tell apart. Each is clearly identified with graphic mode icons (Fig. 17) which provide quick visual reference during the various modes of operation. Become familiar with all modes so that you understand exactly what information the Data100 is providing you at any specific time.

Above water modes include - Diagnostic Mode, Pre Dive Planning Sequence™ (PDPS), Surface Mode, Dive Log Mode, and Time to Fly Mode. Diagnostic and Dive Log Modes are accessed by pressing the control button.

Underwater modes include the No Decompression Dive Mode, Decompression Dive Mode and Alternate Decompression Dive Mode, Violation Mode, and Gauge Mode. You will not see Decompression Dive, Violation, or Gauge Modes unless you dive to extremes.

Activation & Diagnostic Mode

WARNING: Never activate the Data100 underwater. This may result in inaccurate depth and no decompression time displays. Activation is not possible deeper than 4 feet (1.5 meters) underwater, or at elevations higher than 14,000 feet (4,267 meters).

For Activation, refer to the explanation given on page 4.

+ 64 hidden pages