automatically return to the READY display.
Higher personal/ altitude adjustment modes will
shorten the no-decompression time limits. These
limits at different personal/ altitude adjustment
mode selections are shown in Tables 6.1 and 6.2 in
Section 6.1, “OPERATING PRINCIPLES”.
Dive Numbering Shown
During Dive Planning
Several repetitive dives are considered to belong to
the same repetitive dive series when the IQ-400 has
not deactivated itself. The first dive of the series will
be numbered as DIVE 1, the second as DIVE 2, the
third as DIVE 3 etc. (Fig. 3.6).
When the surface time has been less than 10 minutes,
the dives are considered to be the same. The dive
number will not change for the second part of such a
dive and the dive time will start where it left off.
3.2.3 Calendar Clock Function
The calendar clock is always shown on the display,
when the IQ-400 is deactivated.
Once the IQ-400 is activated the TIME display can
be retrieved any time on the surface mode by touch-
ing the MODE and MODE/PLAN contacts for about
two seconds. The current time and date will be
shown for four seconds (Fig. 3.7).
When diving, the dive entry time and date is regis-
tered in the logbook memory. Remember always to
check before diving that the clock is set, especially
when traveling to different time zones. For adjusting
the clock, refer to Section 4.4, “Setting Time and
Date”.
In the metric version of the IQ-400, the 24-hour time system is used, while in
the imperial version the 12-hour time system is used.
3.3 Diving
3.3.1 Basic Dive Data
The IQ-400 will remain in the SURFACE mode at depths less than 1.8 m [6
feet]. At depths greater than 1.8 m the IQ-400 will go into the DIVE mode.
16
Figure 3.5
Dive Planning
The no-decompression
time limit at 30.0m
(100ft) is 14 minutes
in A1 mode.
