Tusa Q 1203 CE Guide

IQ1203CE Dive Computer Start Guide
Thank you very much for your purchase of the TUSA Dive Computer IQ 1203 CE.
The TUSA IQ 1203 CE is equipped with a very unique solar charging system packed into a compact
watch-style diving computer. In addition, the TUSA IQ 1203 CE offers the world's first M value warning
function exclusive to TUSA. This feature manages the risk of no-decompression dive times in water
depths up to 20m that tend to be ambiguous by taking a safety margin of nitrogen gas pressure in
the body. The TUSA IQ 1203 CE also supports EAN (Enriched Air Nitrox) diving allowing for settings
of 21% – 50% EAN as well as Free-diving and Gauge Mode. The TUSA IQ 1203 CE watch features
include: world time (48 city), alarm, stopwatch, and timer.
Note: Before using your new TUSA IQ 1203 CE diving computer visit the TUSA website for your user's
manual. It is extremely important to read and fully understand how to operate the computer as well as
the dangers, warnings, and precautions. Incorrect usage of the computer may lead to serious injury.
Please contact your local distributor if further assistance is needed.
Important information
Please be sure to download and read the PDF IQ1203CE manual from the TUSA website
before use.
Incorrect usage may lead to serious accidents.
TUSA top page: http: //www.tusa.com/
■Solar Charging System
The TUSA IQ 1203 CE solar panel is integrated into the display of the computer.
・Long life solar charged battery eliminates the need for unwanted battery changes.
・To ensure charging occurs; expose the computer display window to sunlight.
・It is recommended to charge your computer once a month to ensure its proper function.
When light is striking or not striking the unit
<When light is striking the unit> <When the light is not striking the unit>
Secondary
battery
Light Solar cell
(charged with light)
Charging
Electrical energy
Supply
Secondary
battery
Supply
Discharge
The TUSA IQ 1203 CE, when charged, will always display the clock feature, even if no light is present.
On land, the computer is making calculations every 20 sec. In Dive Mode (submersed), the computer is
making calculations every second.
First Edition

Usage scene
Time mode (land) During no-decompression diving During decompression diving Surface mode
Basic display
Date
Day of the week
Surface mode
A C
DB
Dive time
Current water depth
A C
DB
Dive time
Decompression stop depth
A C
DB
Nitrogen elimination time
Surface interval time
A C
DB
Current time No-decompression
dive time
Current depth of
water Current time
Button operation
A
ADJUST
Date
Seconds
Returns to the basic display after 3 seconds Returns to the basic display after 3 seconds
Surface mode
A
Current water temperature
No-decompression dive time
A
Current water temperature
Total time in water
ADate
Day of the week A Seconds
A
Current time Maximum depth Maximum depth Current time
B
MODE
Each time you press the B button,
the unit proceeds to the various
modes of the clock function.
Press the B button once for compass
mode, twice for stopwatch mode,
three times to return to diving mode.
Press the B button once for compass
mode, twice for stopwatch mode,
three times to return to diving mode.
Each time you press the B button,
the unit proceeds to the various
modes of the clock function.
C
LOG
Log mode Time mode Time mode Log mode
Diving date
Log No.
CDate
Day of the week
CDate
Day of the week
CDiving date
Log No.
C
Entry time
No. of dives Current time Current time Entry time
No. of dives
D
PLAN
Dive Plan mode
Returns to the basic display after 3 seconds Returns to the basic display after 3 seconds
Dive plan mode
No-decompression dive time
D
Dive time elapsed
No-decompression dive time
D
Dive time elapsed
Current water depth
D
No-decompression dive time
D
Target depth Current water Decompression Target depth
Log mode
(Year display) (Log data switching) C
D
A
Alternately
displays
C
D
DOWN
※ Automatic display the
change in water depth
per minute
If either the A, C or D button is
pressed during automatic display,
automatic display is canceled.
With automatic display canceled,
time can be moved forward (D
button) or backward (C button)
by one minute.
UP
※
At the end of the log data,
dive history is displayed
Change in water depth display
(1st screen) (2nd screen) (3rd screen)
(Dot display characters) (Dot display characters)
Water temperature at maximum depth
Diving time
Average depth of water
Alarm display
Exit time Maximum water
depth
Used oxygen concentration
B
B
A
AAA
Basic watch mode
A C
B D
(Seconds display)
Displays 48 hours
after exit
A
A
B
Press and hold
B
Press and hold
B
Plan setting mode
(Dot display characters) (Water depth display switching)
Press and hold
A
Setting mode
(Oxygen density ratio setting)
No-decompression dive time
C
D
DOWN
Oxygen concentration
C
D
DOWN
B
B
Ａ
C
D
DOWN
Planned dive depth Safety factor No.
UP UP UP
※
Fast forward by pressing and
holding
C
and
D
, switch in
3m intervals ( 9 ~ 48 m).
※
Fast forward by pressing and holding
C
and
D
.
Stops at common values (21 %, 32 %).
Switching of the safety
factor No. with
B
SF-0 ~ SF- 2
M value settings
95% 90 % 80%
A
各種設定
B B B B B
Compass Stopwatch Timer Alarm Free diving World Time
Press and hold
A
(Depth interval alarm settings)
C
D
DOWN
B ON/OFF UP
B ON/OFF
A
A
Ａ
Ａ
IQ1203 CE Basic Operation Guide AADJUST BMODE CLOG DPLAN button