Tusa IQ-800 Bedienungsanleitung

Contents

IQ-800 Flow Chart 3

1. Introduction 4

2. Key Features 4

3. Common Sense Warnings 4

4. Accessing Display Modes 7

5. Time Mode 8

6. Dive Set Mode 10

7. Dive Plan Mode 12

8. Dive Log Mode 14

10. Dive Proﬁle Mode 20

11. PC Transfer Mode 22

12. Time Set Mode 23

13. Dive Mode 24

14. Altitude Setting 35

15. Battery Level Icon 37

16. Battery Replacement 37

17. Units of Measurement 38

18. General Handling 38

19. Warranty 39

22. Technical Speciﬁcations 43

DC-Sapience

Selected display features

12 24

Decompression stop violation

Decompression time

Decompression depth

Date, safety stop time

Residual nitrogen bar graph

Don’t ﬂy icon

Current time

Total dive time, current depth

Sea/Fresh water icon

Mode button (A)

Nitrox icon

Mode, log number

Ascent rate indicator

Ascent rate warning

Low battery warning

Altitude setting

Set, backlight button (C)

FO2, NDL time, dive time

PO2 icon

Residual Oxygen bar graph

Current dive number

Select button (B)

Surface interval, Safety Factor

Total ascent time

IQ-800 Flow Chart

AKey

BKey：Select

CKey：Set

B+CKey：

LCDallON

BKey：Select

CKey：Set

B+CKey5〜6sec：

FT/mchange

BKey：Select

CKey：Set

AKey

BKey：N→…→2→1→N→…

BKeyHold：(FastScrolling)N→…→2→1

PROFILEMODE

B,C,EKey：invalid



CKey：Pause(Divecountstop)

TIMEMODE

TIMESETMODE

DIVESETMODE

PLANMODE

PCTRANSFERMODE

ActualSize

rev.7改

2004.2.27

BKey

release

BKey

hold

DIVEMODE

BKeyorCKey：

ELon5s

B+CKey：Alarmaudition

AKey



AKey

Deco NDL

Non‑Deco Demand

Ascentratewarning PO2limitedwarning OLIlevelwarning

SafetyStop

RangeOVER

AKeyorBKeyorCKey：ELON5s

ESwitch

BKey：invalid

CKey5〜6s：HistoryClear

HISTORYMODE

NonResidualNitrogen ResidualNitrogen

BKey

B BB B

Second→Minute→Hour→12h/24h→

B B B

→Year→Month→Day→

BKey

AKey

AKey AKey

TIMEMODE

‑Modekey‑ ‑Setkey‑

‑Selectkey‑

B B

SURF.T→DEPTHRANK→

FO2→USF→SOUND/VIBE→Sea/Fresh→

B B B B

BKeyrelease

BKeyhold

CKey

CKey：N‑1→N‑2→…→1‑1→1‑2

CKeyHold：(FastScrolling)N‑1→…→2‑1→1‑1

BKey：1‑2→1‑1→…→N‑2→N‑1

BKeyHold：(FastScrolling)1‑1→2‑1→…→N‑1

BKey

LOGMODE

……

CKeyBKey

ESwitch

CKeyHold:

Set(FastScrolling)

1. Introduction

Congratulations on your choice of the TUSA IQ-800 Dive Computer.

The IQ-800 is a compact and sophisticated dive instrument that will

give you reliable, trouble free performance, dive after dive.

The information in this manual has been developed for your safety.

Please read and understand this manual completely before using

your new TUSA dive computer.

2. Key Features

Among the IQ-800’s key features:

• Can handle both air and nitrox

• User changeable FO2 setting

• Visual, audible, and vibrating alarms

• Safety stop function

• Decompression and non-decompression dive information

• Maximum depth alarm

• Dive time alarm

• Display backlight

• User changeable battery

3. Common Sense Warnings

As is true of every piece of diving equipment, including all dive

computers, the IQ-800’s abilities are not limitless. There are certain

limitations and restrictions of which you must be aware, and certain

precautions you must take when using the IQ-800.

The IQ-800 is designed for use by certiﬁed, recreational divers

who have maintained a sufﬁcient level of knowledge and skill

proﬁciency through a combination of formal training, ongoing study

and experience. It is not intended for use by persons who lack

the qualiﬁcations, and thus may not be able to identify, assess,

and manage the risks scuba diving entails. Use of the IQ-800 in

conjunction with Enriched Air Nitrox (EANx) further requires that the

diver be trained and certiﬁed for Nitrox diving.

The IQ-800 is not intended for use by commercial, military or

technical divers whose activities may take them beyond the

commonly accepted depth limits for recreational diving.

The IQ-800 is designed for use by divers breathing either normal

compressed air or Enriched Air Nitrox (EANx) mixtures whose fraction

of Oxygen falls within a range of 22 to 99 percent.

Although the IQ-800 is capable of calculating decompression stop

requirements, this ability is provided as a safety feature only, should

a diver accidentally exceed the No-Decompression Limits (NDLs).

Dives requiring mandatory stage decompression carry substantially

greater risk than dives made well within no-decompression limits.

Decompression diving is widely believed to entail substantially

greater risk of decompression illness than dives made well within

the No-Decompression Limits (NDL). The IQ-800 provides

decompression stop information solely as a contingency in case

divers accidentally exceed the No-Decompression Limits. It is not

designed or intended for use as a tool to plan or execute dives

that participants know will entail mandatory decompression.

WARNINGS

Before using the IQ-800, it is extremely important you read the

following points as well as similar warning and caution notices

that appear throughout this manual. Failure to do so could result

in damage to or loss of equipment, serious personal injury, or

death.

The IQ-800 is designed to be used by only one diver at a time. Divers

should not share a single IQ-800, or any dive computer, on the same

dive. Additionally, no diver should lend his or her IQ-800 to anyone else

until it calculates that no measurable residual nitrogen remains after

previous dives, and displays neither the “Desaturation Time” nor “No Fly”

indicators while in Surface Mode. Further, no diver should use his or her

IQ-800 for repetitive dives unless that same IQ-800 has accompanied

him or her on all previous dives in the same repetitive dive series.

Neither the IQ-800, nor any other dive computer presently available,

physically measures the amount of nitrogen present in body tissues, or

the rate at which this nitrogen is being absorbed or released. Instead,

the IQ-800 monitors depth and time, and uses this data to work a

mathematical formula designed to emulate how individuals in good

general health and whose physical characteristics do not place them

among those at higher risk of decompression illness are assumed

to absorb and release nitrogen from body tissues. Thus, the IQ-800

cannot compensate for factors such as age, obesity, dehydration, cold

or exertion, which experts believe place divers at greater risk of DCI. If

these, or similar factors apply to you, use the IQ-800, and any other dive

computer or dive table, with even greater caution.

Experts still know surprisingly little regarding the exact nature and causes

of decompression illness (also known as decompression sickness, DCI,

or DCS). Susceptibility to DCI may vary substantially from person to

person and from day to day. Neither the IQ-800, nor any dive computer

or table, can guarantee that you will not suffer decompression illness.

Even though you use these items correctly, you may still suffer DCI. Do

not rely on the IQ-800 as your sole means of avoiding decompression

sickness.

WARNINGS

4. Accessing Display Modes

There are some display modes that the IQ-800 enters and/or exits

automatically. For example, by taking the IQ-800 underwater, you

automatically activate its Dive Mode. Upon surfacing your IQ-800

will automatically enter Time Mode.

To access other modes, you may need to push one of the three

large buttons on the sides of the IQ-800. These are the A, B, and C

buttons. (Fig. 1)

You will ﬁnd these buttons easy to use. In some instances, you may

need to press a button once and release it to achieve the desired

result. In other instances, you may need to hold the button down

until you get the result you wish. This manual will outline clearly

which procedure to follow for each mode or task.

Throughout this manual display icons that blink are shown

surrounded by gray bars.

Experts recommend divers wait at least 24 hours following any dive

before ﬂying in an aircraft or driving to altitude. Failure to allow

sufﬁcient surface interval before doing so may substantially

increase the risk of Decompression Illness (DCI).

Do not plan dives to depths deeper than those for which the IQ-800 is

capable of displaying an available No-Decompression Limit. Doing so

could cause you to exceed the No-Decompression Limits or limiting

PO2 of 1.6 bar, which may in turn substantially increase your risk of

decompression illness or CNS Oxygen Toxicity and can lead to serious

personal injury or death.

Figure 1

5. Time Mode

• Current time: This is the current time of day.

• Current date: This is the current date.

• Current weekday: This is the current day of the week.

• Battery indicator Icon: This displays the current battery voltage. (not

shown)

• PGT (Pressure Gas in Tissue) graph: This indicates the level of

Nitrogen with nine level indicators. The greater the number of

indicators displayed, the greater the pressure of the gas.

• OLI (Oxygen Limited Indicator) graph: This indicates the level of

Oxygen in the diver's body with eight level indicators.

• Nitrox Icon: This Icon is ON when NITROX has been selected.

• Desaturation time (DESAT): This indicates the time remaining until

the body’s internal nitrogen is desaturated. The DESAT is also

displayed if PGT occurs because of a change in the altitude rank.

Time mode is the IQ-800’s default mode. In this mode the screen

displays a minimum of the current date and time of day. Within 24

hours of surfacing from a dive, the IQ-800 will display additional

information while in Time Mode. A description of the screens is

shown below. (Fig. 2,3)

Normal After a dive

Current Weekday

MODE MODE

Current Time

Desaturation Time Surface Time

Figure 2 Figure 3

Do Not Fly

Warning

Experts recommend divers wait at least 24 hours following

any dive before ﬂying in an aircraft or driving to altitude.

Failure to allow sufﬁcient surface interval before doing so

may substantially increase the risk of Decompression Illness

(DCI).

• Surface time (SURF.T): This is the surface interval time after a

dive. The timer is started from when the depth shown in Dive

mode reaches 5 feet (1.4m) or less. If the depth changes back to

5 feet (1.4m) or more in less than 10 minutes, the previous dive

is continued. Surface time is continued for 48 hours. After that,

surface time is turned off.

• Mode: This display shows the computer in Time mode.

• Don’t Fly Icon: While the computer calculates desaturation time

this icon is displayed during Time Mode. When the computer has

ﬁnished calculating desaturation time this Icon is turned off.

Prior to a dive

The letters correspond to the buttons of the IQ-800 shown in ﬁgure 1.

• A button: Press this button to move to dive set mode.

• A button held for 2-3 seconds: Moves to time mode.

• B button held down: Time display and backlight comes on.

• C button: Turns on the backlight.

• B+C button: Alarm sound or vibration test.

• E button: Touch this switch and metal housing to switch to dive

mode.

Operation of buttons during Time mode

During a surface interval

• A button: Press to move to dive set mode.

• B button: Time display and backlight comes on.

• C button: Turns on the backlight

• B+C button: Activates the alarm sound or vibration test

• E button: Touch this button and the metal housing to switch to dive

mode.

6. Dive Set Mode

To enter Dive Set mode from Time mode, press the A button until "D-

SET" is shown on the display.

Note: If the surface interval is less than 10 minutes the computer will

not enter this mode. The computer will switch to dive plan mode.

Use the dive set mode to set the oxygen concentration (FO2), user

safety function (SF), warning alarm sound or vibration (AL-S/AL-V),

and seawater or freshwater (Sea/Fresh) settings. (Fig. 4)

• FO2 (fraction of oxygen): This displays the oxygen concentration

that is currently selected. If the FO2 is set at 21%, "Air" is

displayed.

• PO2 Maximum depth: This displays the PO2 maximum depth (when

PO2=1.4) appropriate for the displayed FO2

• SF (Safety Factor): This displays the SF value set by the diver. The

larger the value, the greater the safety value.

• Alarm operations: The icon will display V for vibrate, or S for sound.

• Nitrox Icon: This Icon is ON when NITROX has been selected.

• Sea/Fresh Icon: This shows whether the computer has been set to

fresh or salt water for depth calculations.

• Mode: Displays “D-SET” when in dive set mode.

Warning Operation

MODE

PO2 Maximum Depth

Dive Set Mode

User Safety Factor

FO2

Figure 4

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