On the surface the
IQ-400
is operated by simultane-
ously touching the MODE/PLAN contact and one
or two of the other contacts. When doing this, your
finger tips should be wet or moist to establish the
necessary electric contact. When submerged these
contacts are automatically connected by the conduc-
tivity of the water.
2.2 Activation
The calendar clock is always shown on the display,
when the dive computer is deactivated. In this mode
the power consumption of the
IQ-400
is minimal.
The
IQ-400
is activated by touching the
PLAN
and
MODE/
PLAN contacts (Fig 2.1). The first
display, the STARTUP, shows all available elements
and immediately after this the battery power indica-
tor. A few seconds later the READY display will
appear, showing zero values (Fig. 2.2).
At this time, perform a precheck making sure that
the
IQ-400
operates correctly, that the low battery
indicator is not on and that the personal/ altitude
adjustment setting is correct.
If the battery symbol is displayed and stays on all
the time the
IQ-400
should not be used (Fig. 2.3).
3. D
IVING WITH
T
HE
IQ-400
This section contains instructions on how to oper-
ate the
IQ-400
and interpret its displays. Each dis-
play has been carefully designed to provide impor-
tant information you will need to plan your dive or
dive series.
You will find that the
IQ-400
is easy to use and read.
Each display shows only the data relevant to that
specific diving situation. For example, while you are
on a dive, surface interval data is irrelevant and
therefore not shown. On the other hand, while you
are on the surface after a dive, remaining no-decom-
pression time for that dive is irrelevant and there-
fore replaced with information for your next dive.
11
NO DECO
NO DECO
SURF
SURF
MAX
MAX
MAX
MAX
DIVE TIME
DIVE TIME
DIVE
DIVE
BAT
BAT
NO
CEILING
ASC
A 0
A 0
A 1
A 1
A 2
A 2
¡C
¡F
A
m
S
C
S
P
E
E
D
HIS
HIS
LOG
LOG
ALT
ALT
SET
SET
PLAN
PLAN
MODE
MODE
PLAN
PLAN
MODE
MODE
PLAN
PLAN
Figure 2.1 Activation
Touch the
PLAN
and MODE/
PLAN
contacts with
moistened fingers
DIVE TIME
BAT
HIS
ALT
SET
PLAN
Figure 2.3
Battery Warning
The battery symbol
when displayed all the
time indicates that the
battery is too low
for diving
SURF
MAX
MAX
DIVE TIME
DIVE
A 1
A
m
S
C
S
P
E
E
D
HIS
LOG
ALT
SET
PLAN
¡C
Figure 2.2
Ready Display
*Refer to
figure 3.3 for battery
power indicator.
(see page13)
