Tusa element II User manual
2
LIMITED TWO-YEAR WARRANTY
For details, refer to the Product Warranty Registration Card provided.
COPYRIGHT NOTICE
This manual is copyrighted, all rights are reserved. It may not, in whole or in part, be copied, photocopied, repro-
duced, translated, or reduced to any electronic medium or machine readable form without prior consent in writing from
Tabata USA, Inc. and Tabata Corp. Ltd. / 2002 Design.
Element II Owner's Manual, Doc. No. 12-2980
©2002 Design, 2009
San Leandro, CA USA 94577
TRADEMARK NOTICE
TUSA, the TUSA logo, Element II, and the Element II logo, are all registered and unregistered trademarks of Tabata USA
and Tabata Corp. Ltd. All rights are reserved.
PATENT NOTICE
U.S. Patents have been issued, or applied for, to protect the following design features:
Data Sensing and Processing Device (U.S. Patent no. 4,882,678), Ascent Rate Indicator (U.S. Patent no. 5,156,055).
CE
The CE mark is used to mark conformity with the European Union EMC directive 89/336/EEC. TUSA dive instruments
fulfill the required EU directives.
EN 13319 "Diving accessories - Depth gauges and combined depth and time measuring devices - Functional and
safety requirements, test methods" is a European diving depth gauge standard. The Element II is designed to comply
with this standard.
DECOMPRESSION MODEL
The program within the Element II simulates 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 Element II dive computer
model is based upon the latest research and experiments in decompression theory. Still, using the Element II, just
as using the 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.
3
CONTENTS
WARRANTY, NOTICES, DECOMPRESSION MODEL ....................................................................................................2
OVERVIEW ....................................................................................................................................................................... 7
FULL LCD .................................................................................................................................................................... 8
CONTROL BUTTONS ................................................................................................................................................. 9
OPERATING MODES ................................................................................................................................................ 10
AUDIBLE ALARM ...................................................................................................................................................... 10
BACKLIGHT .............................................................................................................................................................. 12
POWER SUPPLY ...................................................................................................................................................... 13
PC INTERFACE ......................................................................................................................................................... 14
FEATURES AND DISPLAYS .......................................................................................................................................... 15
BAR GRAPHS ........................................................................................................................................................... 16
ALPHA / NUMERIC DISPLAYS ................................................................................................................................ 18
SURFACE MODES ......................................................................................................................................................... 21
OPERATING MODES AND SURFACE MODE ......................................................................................................... 22
NORM SURF MAIN .............................................................................................................................................. 23
NORM SURFALT ................................................................................................................................................. 24
NORM/GAUGE SET MODES .................................................................................................................................... 24
Setting FO2 for Nitrox Dives................................................................................................................................. 25
SET F GROUP (FO2) ................................................................................................................................................ 26
Set FO2 GAS 1..................................................................................................................................................... 27
Set FO2 GAS 2..................................................................................................................................................... 28
Set FO2 50% Default ........................................................................................................................................... 29
4
CONTENTS (continued)
SET A GROUP (NORM/GAUG ALARMS) ................................................................................................................ 29
Set Audible Alarm ................................................................................................................................................. 29
Set Depth Alarm ................................................................................................................................................... 30
Set EDT (Elapsed Dive Time) Alarm ................................................................................................................... 31
Set NiBG (Tissue Loading Bar Graph)Alarm....................................................................................................... 32
Set DTR (Dive Time Remaining) Alarm................................................................................................................ 32
Set PO2 Alarm ...................................................................................................................................................... 33
SET U GROUP (UTILITIES) ...................................................................................................................................... 34
Set Wet Activation ................................................................................................................................................ 34
Set Units of Measure ............................................................................................................................................ 35
Set Deep Stop ...................................................................................................................................................... 35
Set Safety Stop ..................................................................................................................................................... 36
Set Conservative Factor ....................................................................................................................................... 36
Set Backlight Duration .......................................................................................................................................... 37
Set Sampling Rate................................................................................................................................................ 38
SET T GROUP (TIME/DATE) .................................................................................................................................... 38
Set Date Format ................................................................................................................................................... 39
Set Time Format ................................................................................................................................................... 39
Set Time................................................................................................................................................................ 40
Set Date ................................................................................................................................................................ 40
SERIAL NUMBER ..................................................................................................................................................... 42
NORM PLAN MODE .................................................................................................................................................. 43
FLY MODE ................................................................................................................................................................. 45
DESAT MODE ............................................................................................................................................................ 46
NORM/GAUG LOG MODE ........................................................................................................................................ 47
HISTORY MODE ........................................................................................................................................................ 50
5
CONTENTS (continued)
NORM DIVE MODES ...................................................................................................................................................... 53
NO DECO DIVE TIME REMAINING (NDC) .............................................................................................................. 54
OXYGEN ACCUMULATION ...................................................................................................................................... 55
ASCENT RATE INDICATOR (ASC) .......................................................................................................................... 55
NORM NO DECO DIVE MODE ................................................................................................................................. 56
No Deco Deep Stop .............................................................................................................................................. 58
No Deco Safety Stop ............................................................................................................................................ 60
CAUTIONARY MODES ................................................................................................................................................... 61
DECOMPRESSION ................................................................................................................................................... 62
CONDITIONAL VIOLATION ...................................................................................................................................... 64
DELAYED VIOLATION 1 ........................................................................................................................................... 65
DELAYED VIOLATION 2 ........................................................................................................................................... 66
DELAYED VIOLATION 3 ........................................................................................................................................... 67
VIOLATION GAUGE MODE ...................................................................................................................................... 68
HIGH PO2 .................................................................................................................................................................. 70
HIGH O2 .................................................................................................................................................................... 71
SWITCHING GAS MIXES ............................................................................................................................................... 73
NORM POST DIVE MODES ........................................................................................................................................... 77
FIRST 10 MINUTES ON SURFACE .......................................................................................................................... 78
AFTER 10 MINUTES ON SURFACE ........................................................................................................................ 79
UPLOADING SETTINGS AND DOWNLOADING DATA .......................................................................................... 80
GAUGE OPERATING MODE ......................................................................................................................................... 81
DIGITAL GAUGE MODE ........................................................................................................................................... 82
6
CONTENTS (continued)
FREE DIVE OPERATING MODE ................................................................................................................................... 85
FREE COUNTDOWN TIMER (CDT) ......................................................................................................................... 88
FREE ELAPSED DIVE TIME (EDT) ALARM ............................................................................................................ 90
FREE DEPTH ALARMS (DAs) .................................................................................................................................. 91
FREE DIVE MAIN AND ALTs .................................................................................................................................... 93
FREE DIVE ALARMS ................................................................................................................................................ 94
GENERAL ....................................................................................................................................................................... 99
CARE AND CLEANING ........................................................................................................................................... 100
INSPECTIONS AND SERVICE ............................................................................................................................... 100
MODULE REMOVAL FROM BOOT ........................................................................................................................ 101
BATTERY REPLACEMENT .................................................................................................................................... 101
RETURNING MODULE TO BOOT.......................................................................................................................... 105
ALTITUDE SENSING AND ADJUSTMENT ............................................................................................................ 106
CHARTS OF NO DECOMPRESSION LIMITS AT ALTITUDE................................................................................ 107
CHART OF OXYGEN EXPOSURE LIMITS ............................................................................................................ 108
SPECIFICATIONS ................................................................................................................................................... 109
TUSA INTERNATIONAL .......................................................................................................................................... 114
INSPECTION/ SERVICE RECORD ......................................................................................................................... 115
7
OVERVIEW
8
MA
S
FULL LCD
Components:
a. Icon - Log Mode
b. NiBG (Nitrogen Bar Graph)
c. Icon - operating mode
Surface Interval
Plan NDC Time
No Deco Time Remaining
Deco Total Ascent Time
d. O2BG (O2 Bar Graph)
e. Icon - Stop Time Required
Elapsed Dive Time
f. Select (S) Button
g. Icon - Time of Day
h. Icon - Depth/Max Depth
i. ASC (Ascent Rate Indicator)
j. Advance (A) Button
k. Icon - Descend Arrow
Icon - Stop Bar
Icon - Ascend Arrow
l. Icon - Dive #
m. Mode (M) Button
n. Icon - Gas # (mix)
o. Icon - Low Battery
p. Icon - Max/Depth
q. Icon - Degrees
f
j
q
c
l
b
g
n
m
i
d
k
a
h
e
o
p
9
MA
S
INTRODUCTION
Welcome to TUSA and thank you for choosing the Element II !
It is extremely important that you read this Owner's Manual in sequence and understand it
completely before attempting to use the Element II as a dive computer.
Remember that 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.
CONTROL BUTTONS
The Element II features three Control Buttons that allow you to select mode options and
access specific information. They are also used to enter Settings, activate the Backlight,
and acknowledge the Audible Alarm.
Throughout this manual they will be referred to as the M, A, and S buttons.
• Front/Left - Mode (M) button
• Front/Right - Advance (A) button
• Right/Side - Select (S) button
MA
S
10
S
S
S
Fig. 2 - FREE MODE
Fig. 1B - GAUG MODE
Fig. 1A - NORM MODE
OPERATING MODES
The Element II features 3 Operating Modes, NORM (Fig. 1A)
which is used for Air and Nitrox SCUBA dives, GAUG (Fig. 1B)
used for SCUBA dives in which Nitrogen-Oxygen calculations
are not performed, and FREE (Fig. 2) used for activities that do
not use SCUBA.
> NORM Mode allows access to Fly, Desat, Log, and History
Modes, as well as entering settings.
> GAUG Mode is similar without access to Desat Mode.
> FREE Mode only allows access to specific Free Modes.
AUDIBLE ALARM
Most warning situations that activate the Audible Alarm while
operating in NORM or GAUG Mode cause the Element II to emit
1 beep per second for 10 seconds, or until the situation is
corrected, or it is acknowledged by momentarily pressing and
releasing the S button (less than 2 seconds).
After being acknowledged and the situation corrected, the Alarm
will sound again upon reentry into the warning situation, or entry
into another type of warning situation.
FREE Dive Mode has its own set of Alarms which emit 3 short
beeps either 1 or 3 times which cannot be acknowledged or set
Off.
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