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Diver Attention Symbol – Advice to Extend Surface Interval
Some patterns of diving cumulatively add a higher risk of DCI; for example, dives with
short surface intervals, repetitive dives deeper than earlier ones, multiple ascents, and
substantial multiday diving. When this is detected, in addition to adapting the decompression
algorithm, the Suunto RGBM model will in some circumstances also advise, with the Diver
Attention Symbol, that you extend your surface interval.
9.2.2. No-decompression limits
The no-decompression limits displayed by the dive computer for the first dive to a single
depth (see Table 9.1, No-decompression time limits for various depths (m) and Table 9.2,
No-decompression time limits for various depths (ft) .), are slightly more conservative than
those permitted by the U.S. Navy tables.
Table 9.1. No-decompression time limits for various depths (m)
No-decompression time limits (mins) for various depths (m) for the first
Depth
(m)
P0/A0
9
--
12
124
15
72
18
52
21
37
24
29
27
23
30
18
33
13
36
11
39
9
42
7
45
6
Table 9.2. No-decompression time limits for various depths (ft)
No-decompression time limits (mins) for various depths (ft) for the first
Depth
(ft)
P0/A0
30
--
40
120
50
69
60
50
70
36
80
28
90
22
100
17
110
13
46
Personal Mode / Altitude Mode
P0/A1
P0/A2
163
130
163
89
67
89
57
43
57
39
30
39
29
23
29
24
19
24
18
15
18
14
12
14
11
9
11
9
8
9
7
6
7
6
5
6
5
5
5
Personal Mode / Altitude Mode
P0/A1
P0/A2
160
127
160
86
65
86
56
41
56
38
29
38
29
22
29
23
19
23
18
15
18
14
11
14
11
9
11
dive of a series
P1/A0
P1/A1
P1/A2
130
96
67
54
43
35
30
5
23
20
19
16
15
12
12
9
9
8
8
6
6
5
5
4
5
4
dive of a series
P1/A0
P1/A1
P1/A2
127
92
65
52
41
34
29
25
22
20
19
15
15
11
11
9
9
7
P2/A0
P2/A1
130
96
75
67
54
45
43
35
29
30
25
21
23
20
15
19
16
12
15
12
9
12
9
7
9
8
6
8
6
5
6
5
4
5
4
4
5
4
3
P2/A0
P2/A1
127
92
73
65
52
43
41
34
28
29
25
20
22
20
15
19
15
11
15
11
9
11
9
7
9
7
6
P2/A2
P2/A2
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