192
NOTE: Different factors affect the battery average life. For
example: the time of storage before acquiring the instru-
ment, the dive time, the use of back-illumination, the bat-
tery’s quality itself, whose average life varies according to
temperature.
6.1. – DECOMPRESSION TABLES
At the end of a dive, the computer will continue processing
data for a subsequent dive. This is possible since the compu-
ter keeps recording nitrogen absorption of “standard” tis-
sues, taken as reference. Each tissue absorbs and releases
nitrogen at different speeds, indicated by the so-called
“hemi-saturation times” (the time taken to reach a tissue 50%
saturation). Archimedes II uses 12 standard tissues, on which
the mathematical model computations are carried out, in any
stage of dive, surfacing and subsequent dives.
6.1.1. – No decompression tables by the first dive
in a series.
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
--
--
--
--
--
--
--
Manuale ARCHIMEDE II 2008:Manuale 6 26-06-2008 8:26 Pagina 192
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