How To Read No Decompression Limits - Citizen Eco-Drive b740 Instruction Manual

No Decompression
Limits
CAUTION
• The table of no decompression limits is provided for one-time diving.
• Since the no decompression limits differ depending on divers physical
condition and difference among individuals, use this table as a guideline
only.
• In case of diving that requires the diver to take a rest for decompression
before rising to the surface, perform diving following a manual exclusively
compiled for diving.
— How to read no decompression limits —
DEPTH.m
(Max. depth in meter) (No decompression time)
12m (40ft) . . . . . . . . . 200Min
15m (50ft) . . . . . . . . . 100Min
18m (60ft) . . . . . . . . . 60Min
21m (70ft) . . . . . . . . . 50Min
24m (80ft) . . . . . . . . . 40Min
27m (90ft) . . . . . . . . . 30Min
30m (100ft) . . . . . . . . 25Min
33m (110ft) . . . . . . . . 20Min
36m (120ft) . . . . . . . . 15Min
39m (130ft) . . . . . . . . 10Min
42m (140ft) . . . . . . . . 10Min
45m (150ft) . . . . . . . . 5Min
N.D.TIME
Example: Read the
table as follows.
In case the maximum
diving depth is 21 m
(70 ft) and the elapsed
time is 50 minutes or
shorter, the diver is not
required to take a rest
for decompression while
rising to the surface.
53