During scuba diving:
<Case of No-Decompression Diving>
• The current time, water temperature and current body nitrogen level graph are displayed
during the time button (A) is pressed during no-decompression diving (except while the safety
stop graph is displayed).
<Safety Stop Graph Display>
A graph serving as a general reference for changes in depth during safety stop and the elapsed
time during a safety stop are displayed after having descended to a depth of more than 5 m (15 ft)
and then ascended to a depth of 5 m (15 ft) during scuba diving (no-decompression diving).
Reading the Safety Stop Graph
The horizontal axis of the graph represents elapsed time, while
the vertical axis represents changes in depth over a range of 3
m (10 ft) to 7 m (23 ft) centering around a depth of 5 m (15 ft).
<Case of Decompression Dive Display when No-Decompression Limit Time has
been Exceeded>
• When diving beyond the no-decompression limit time, an alarm sounds and an instruction to
make a decompression stop (STOP) is displayed on the display, indicating that
decompression diving has resulted.
• The current time and maximum depth are called up during the time button (A) is pressed
during the decompression dive display (except during display of the decompression stop
graph).
• The watch returns to the no-decompression dive display when the instruction to make a
decompression stop is followed.
<Decompression Stop Graph Display>
A graph serving as a general reference for changes in depth is
displayed during a decompression stop at a depth of ±1 m (4 ft)
of the decompression stop instructed depth.
Reading the Decompression Stop Graph
The horizontal axis of the graph represents elapsed time, while the
vertical axis represents changes in depth over a range of ±1 m (4 ft)
from the decompression stop instructed depth.
46
Dive time
Max. depth
No-decompression limit
(NDL) time
Current
depth
Dive time
Current time
Body nitrogen
level graph
While button (A) is pressed
Current
depth
Current water
temp.
Dive time
Instructed time
Instructed depth
Total
ascent time
Current
depth
Dive time
(A)
(A)
Current time
Max. depth
While button (A) is pressed
Current depth
Safety stop
graph
Safety
stop time
Decompression stop graph
Instructed
time
Instructed depth
