2.02 Surface Mode
Surface Mode is the IQ-600’s default mode. In this mode, the
IQ-600’s Liquid Crystal Display (LCD) displays a minimum
of date, time of day and Altitude Rank. Within 24 hours of
surfacing from a dive, the IQ-600 will display additional infor-
mation while in Surface Mode.
To enter this mode:
The IQ-600 enters Surface Mode automati-
cally upon surfacing from a dive. Additionally, if you leave the
IQ-600 in Plan, Log, FO
2
Set or Date/ Time Set Modes for from
five to six minutes, without taking further action, the computer
will return to Surface Mode automatically.
What you will see: When the IQ-600 is in Surface Mode, it
will display the information appearing in Figure 3. This data
will or may include:
1. Date—The format the IQ-600 uses to display the current
date is that common in the USA and Japan, in which the
first set of one or two digits signifies the month, and the
second set of one or two digits (following the hyphen)
signifies the day. Thus, a date of 11-3 would represent the
third of November.
2.Time of Day—The IQ-600 uses the 24-hour clock format,
common in aviation and military service, to signify time of
day. Thus, a displayed time of 13:04 would represent
1:04 PM. Whenever the IQ-600 displays time of day, the
colon separating hours and minutes will blink.
3.
Altitude Rank—Among the IQ-600’s many features is the fact
it adjusts automatically for diving at altitudes of up to 19,680
ft/6,000 m. To show that it has made this adjustment, the
IQ-600 displays its altitude settings using the numbers
1
,
2
or
3
, or the letter
E
.
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