minutes is shown next to the non-blinking airplane
in the center window of the display (Fig. 3.18, b).
If you start a new dive after less than 10 minutes at
the surface, the
IQ-400
interprets this as a continua-
tion of the previous dive. The DIVING display will
return, the DIVE number will remain unchanged,
and DIVE TIME will begin where it left off. After 10
minutes on the surface, subsequent dives are by defi-
nition repetitive. The DIVE counter displayed in the
dive planning mode will progress to the next higher
number if you make another dive after 10 minutes of
surface interval time.
Dive Planning
You may, at any time on the surface, enter the DIVE
PLANNING mode in the manner described in
Section 3.2.2, by touching the
PLAN and
MODE/
PLAN contacts.
The
IQ-400
will take into account the residual nitro-
gen caused by your previous dives. The no-decom-
pression times given for different depths will there-
fore be shorter than before your first dive (Fig. 3.6).
You may also read the time by touching the
MODE and
MODE/
PLAN contacts, as
described in Section 3.2.3 (Fig. 3.7).
3.4.2 Flying After Diving
The no-flying time is shown in the center window
next to the non-blinking airplane image. The blink-
ing airplane is a reminder, when the alternative dis-
play showing surface time is on (Figures 3.17 and
3.18). Flying or traveling to a higher altitude should
be avoided anytime the airplane symbol is displayed.
The no-flying time displayed by the
IQ-400
is always
at least 12 hours or equivalent to the so-called desat-
uration time (if longer than 12 hours). When this
time has elapsed, the residual nitrogen is no longer a
factor for subsequent dives. At this time the
IQ-400
will automatically deactivate itself.
In the permanent ERROR mode the no-flying time
displayed is 39 hours 59 minutes.
24
Figure 3.17
Surface Mode After
a Dive, Display I
You have surfaced with a
SLOW warning on [d] 35
minutes ago [b] from a
46 minute dive [f] that
reached a maximum
depth of 29.8m (98ft) [a].
The blinking airplane
symbol [e] indicates that
you should not fly. the
temperature is 28°C
(82°f) [c].
SURF
MAX
DIVE TIME
NO
A 1
A
m
S
C
S
P
E
E
D
HIS
LOG
ALT
SET
PLAN
b
c
a
d
e
f
¡C
Figure 3.18
Surface Mode After
a Dive, Display II
The desaturation time /
no-flying time, indicated
by a non-blinking air-
plane symbol, is 11hr,
25min [b]. The present
depth is 0.0m (o ft) [a].
DIVE TIME
NO
A 1
A
m
S
C
S
P
E
E
D
HIS
LOG
ALT
SET
PLAN
a
b
¡C
