Citizen C520, Инструкция по эксплуатации

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2. NO DECOMPRESSION LIMITS
The range of time when it is unnecessary to stop to decompress while
surfacing from a dive is determined by the depth and time of the dive.
These values are referred to as “No Decompression Limits.” Use these as
estimates when diving.
No Decompression Limits, based on the U.S. Navy Diving Manual (1993), are
printed on the band of this watch. (Some models may not have this chart.)
<Reading the chart>
DEPTH. m - -N.D. TIME
12 m (40ft) - -200 Min.
15 m (50ft) - -100 Min.
18 m (60ft) - - -60 Min.
21 m (70ft) - - -50 Min.
24 m (80ft) - - -40 Min.
27 m (90ft) - - -30 Min.
30 m (100ft) - - -25 Min.
33 m (110ft) - - -20 Min.
36 m (120ft) - - -15 Min.
39 m (130ft) - - -10 Min.
42 m (140ft) - - -10 Min.
45 m (150ft) - - - -5 Min.
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O. OTHER FUNCTIONS
1. REGISTER RING
The register ring means the rotating bezel fitted around the watch body.
• This is used when measuring elapsed time or time
remaining.
< Using the register ring >
Before starting a dive, rotate the register ring to the
left so that the
•
mark is lined up with the minute
hand. You can know the elapsed time from that point
by reading what the minute hand indicates on the
scale on the register ring.
Example: In the diagram on the left, the register ring
indicates that 10 minutes have elapsed from the start
of the dive (from the
•
mark position).
CAUTION
• The register ring can only be rotated in a counterclockwise direction in order
to prevent operation error. Trying to force the register ring to rotate in a
clockwise direction will damage it.
• When you use the register ring, allow some leeway in the set time and
always use it as an approximate guide.
52
10
20
30
40
50
Time elapsed: 10 minutes
Caution: The no decompression limit
is different depending on body condi-
tion or personal differences. Please
use the no decompression limits on
this watch as a guideline.
When a dive requires no decompres-
sion limits, make sure you follow a
specialized divers manual.
Example: If the diver is at 21m (70ft.)
for 50 minutes or less, then it is OK to
surface without stopping to decom-
press.
* This No Decompression Limits table
is for 1 dive.
30
N.D.LIMITS
DEPTH.M N.D.TIME
12
15
18
21
24
27
200
100
60
50
40
30
30
33
36
39
42
45
25
20
15
10
10
5
No
Decompression
Limits