Cressi Archimede User Manual

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,

,

) . . . . . . . .pag. 147

PC-Interface compatible ( ) . . . . . . . . . . . . . . . .pag.150

Interval Time ( ) . . . . . . . . . . . . . . . . . . . . . . . . .pag. 151

for the first dive in a series . . . . . . . . . . . . . . . . . . . . .pag. 154

for the first dive in a series. . . . . . . . . . . . . . . . . . . . . .pag. 154

DESAT

SURF.T

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 DANGER: means a situation of serious danger or even
possible death for the diver.

IMPORTANT: means a situation that may become dan­gerous for the diver or that can damage the equipment.

NOTE: means important information is being provided .

IMPORTANT: Read these instructions! Carefully read this

User’s Manual, including the section on safety rules. Be
sure that you have fully understood the use, functions, and
limits of your dive computer before using it!

 DANGER: No dive computer can guarantee full protec-
tion against Decompression Sickness (DCS). You need to
understand that there is no procedure in place nor dive
computer that fully eliminates the risk of DCS. No dive com­puter can determine parameters, such as physiological vari­ations between individuals, which are also subject to daily
changes. It is advisable to consult a doctor and check your
physical condition before every dive. You should also
remember that several factors may affect susceptibility to
decompression sickness, such as exposure to cold (less
than 50 °F temperature), physical fitness below the norm,
repetitive dives in the same day or in consecutive days, diver

IMPORTANT: The use of this dive computer is strictly per­sonal. The information it provides exclusively refers to the
diver who has used it during the single or repetitive dives.



DANGER:

Cressi-sub advises you against using this
dive computer for decompression dives. However, should
you exceed the safety curve limits, Archimede Cressi­Sub dive computer can supply you with all the information
you need for decompression, ascent, as well as proper
surface interval time

.

 DANGER: Never dive with a Nitrox cylinder without
having personally checked its content and the proper O2
percentage. You should then input this value in the com­puter. Remember that the dive computer does not accept
FO2 decimal figures. Always round down the figure
(example 35.8% must be rounded down to 35%).

 DANGER: for safety reasons, in your Archimede dive
computer, PO2 default value is set at 1.4 bar also for dives
with air. If you need to further raise the safety margin, PO2
can be set at lower values, down to 1.0 bar, with 0.1bar
decreases at a time.

 DANGER: : avoid all high risk profile dives, such as the
so called “yo-yo” dives, reversed profile dives, or repetitive
dives in the same day or in consecutive days. They are
potentially risky and involve a high risk of DCS!

IMPORTANT: Turn on the safety factor whenever you
realize that there are factors likely to increase your DCS
risk. You will thus perform a more conservative dive.

NOTE: When flying, it is recommended to keep the dive
computer with you in the pressurized cabin.

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no

() icon - from 0 to 2624 ft (fig. 1);

- from 2624 to 5249 ft (fig. 1 - a);

- from 5249 to 7544 ft (fig. 1 - b);

- from 7544 to 19680 ft (fig. 1 - c);

- above 19680 ft—out of range.

 DANGER: For dives at an altitude of more than 9843 ft
above sea level, DCS risk is significantly higher.

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NOTE:

When you change the max PO2 value setting (fig.

3), the computer tells you the maximum depth you can
reach with Nitrox (MAX).

IMPORTANT:

PO2 default setting by the manufacturer is

1.4 bar for both dives with air and Nitrox. In this way, a safe
dive is ensured in compliance with most recently recom­mended parameters for recreational dives. However, you
can also change the PO2 as indicated in Chapter 3.4.1.
The new setting will be kept until the next reset by the
diver.

NOTE: by keeping the B ( ) button pressed, the dive
computer will automatically stop on the standard Nitrox 1
(EAN1 32) setting - which corresponds to 32% of O2 in the
Nitrox supply - or on the ( )setting. Obviously, any other
FO2 value from 21% to 50 % can also be set, with 1%
increases at a time.

NOTE: when changing the oxygen percentage in your
Nitrox supply, the dive computer also tells you the maxi­mum depth that you can reach with that specific supply
(MAX).

Related topics:

• 2.3.1. - Dive Parameter Setting.

NOTE:

always check the right setting of the time and
date, in order to have proper records in the computer log­book.

Related topics:

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iii

Related topics:

Related topics:

Nitrox

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Related topics:

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

19.3ft



58.7ft



5ft

No segment

0.0 ft -

12.8 f/min

0.0 ft -

19.3 ft/min

0.0 m -

25.9 ft/min

1 segment

13.1 ft/min -

19.3 ft/min

19.7 ft/min -

25.9 ft/min

26.2 ft/min ­36 ft/min

2 segments

19.7 ft/min -

25.9 ft/min

26.2 ft/min ­39 ft/min

39.4 ft/min -

52.1 ft/min

3 segments

26.2 ft/min
()

39.4 ft/min
()

52.4 ft/min
()

Related topics:

Related topics:

 DANGER: Never use this dive computer for dives out-
side the safety limit! Cressi-sub advises you not to use this
dive computer for decompression dives.

“NDL” one, which advises that you have exceeded the
safety limits and you now have to stop for decompression;

Related topics:

 DANGER: under these conditions, you cannot dive
again during the following 48 hours.

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Related topics:

2.3.1. - Dive Parameter Setting

2.5. - Quick Display of Set Data.

3.4. - Nitrox Parameter Setting.

3.5. - CNS Toxicity Display.

3.6. - PO2 Alarms.

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NOTE: by keeping the B ( ) button pressed, the dive
computer will automatically stop on the standard Nitrox 1
percentage (EAN32), or on the ( ) setting.

NOTE: when the oxygen percentage is changed, the dive
computer also tells you the maximum depth you can
reach with your Nitrox supply (MAX).

NOTE: you can also change the Nitrox setting even dur­ing surface interval time (with desaturation under way).

utes of surface interval time from the end of the dive. Any
other dive within this interval will be interpreted by the
computer as a continuation of the previous dive, thus
assumed to be using the same cylinder and hence the
same Nitrox supply.

NOTE: FO2 CANNOT be changed within the first 10
minutes of surface interval from the end of the dive.

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NOTA: Exposure calculation result is rounded to the high­er percentage value.

corresponding to a PO2 value of 1.6 bar is reached. The
display will blink for 15 seconds until you ascend above
the depth limit again.

Related topics:

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and dive time calculation will be resumed from where they
have last stopped.

NOTE:

Dives taken after more than 10 minutes are con-

sidered as subsequent dives.

Related topics:

NOTE: Dives shorter than the recording time interval (30
seconds) will not be recorded.

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puter was brought below 5ft, thus turning on the “DIVE”
function;

er was brought above 5ft, thus turning on the ( )
function;

icon.

with air, the word ( ) will be displayed; if you are using
Nitrox, the Oxygen fraction employed will be shown;

SURF.T

SLOW

PO2

icon.

Related topics:

NOTE: All icons of any alarm that may have been set off
during your dive will also be displayed, such as:
() (PO2 alarm); ( ) (ascent rate alarm) etc.

SLOW

PO2

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IMPORTANT: with the reset function, you erase all calcu­lations about current desaturation!! Never reset your dive
computer if it has to be used underwater to calculate sub­sequent dives!

NOTE: Logbook, dive profile and history are stored also
after computer reset.

fig. 30

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NOTE: Simulation speed is 6 times higher than in real life.
In other words, 10 seconds in simulation mode corre­spond to 1 min. in a real life dive, with depth variations of

0.65ft at a time.

Related topics:

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NOTE: Visually check the battery housing through its
look-through cover. If you detect some signs of humidity
inside, have the computer checked by a Service Center
authorized by Cressi-sub.

Related topics:

IMPORTANT: When you replace the battery, all data
regarding desaturation, time and date will be lost. Reset
the time and date again to have the right data stored in the
computer Logbook. Never replace the battery when
desaturation is under way, since all data for desaturation
calculation would be lost. If necessary, take note of the
desaturation hours indicated in the computer and, after
battery replacement, do not take more dives for the same
time interval. After battery replacement, all default settings
by the manufacturer will be resumed (for example
F02=21% and PO2=1.4 bar)

NOTE:

Screw the battery cover back in place, Do not
over tighten! Excessive tightening could break the cover
or make it difficult to open again.

NOTE:

Check that the dive computer is properly water­tight! The battery has a look-through cover so that you can
easily check for any water leakage into the battery housing.

IMPORTANT

: warranty does not cover computer failures

or leakages due to inadequate battery replacement.
Related topics:

about 3% lower);

measured every 10 minutes;

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Depth

(m)

9
12
15
18
21
24
27
30
33
36
39
42
45
48

Depth

(ft)

30
40
50
60
70
80

90
100
110
120
130
140
150
160

AIR

200
104

66
47
35
25
19
16
13
11

9
8
7
7

EAN1 (32%)

(PO2=1.4bar)

200
200
117

74
55
41
32
24
19

--

--

--

--

--

EAN2 (36%)

(PO2=1.4bar)

200
200
182

92
65
50
38

--

--

--

--

--

--

--

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Fig. 1.a

Fig. 1.b Fig. 1.c

Fig. 2

Fig. 3

Fig. 4a

Fig. 4.b

2

Fig. 5

1

3

4

Fig. 6

6

7

5

Fig. 7

Fig. 7.1

Fig. 8

Fig. 9

2

7

4

5

10

8

9

6

3

1

3

Fig. 10

2

4

1

Fig. 11

Fig. 19

Fig. 17

Fig. 16

Fig. 15

Fig. 14

5

4

1

6

2

3

Fig. 13

Fig. 12

Fig. 20

Fig. 21

1

2

4

3

Fig. 22

Fig. 23

Fig. 27

1

2

3

Fig. 28

Fig. 29

Fig. 31

Fig. 32

8

4

7

6

3

5

1

2

Fig. 24

Fig. 18

2

Fig. 26

4

1

3

3

1

Fig. 25

2

4

Fig. 1

Cressi Copertina2 28-09-2005 14:25 Pagina 1