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Citizen C900 - Measuring Dive Time; Dive Depth Warning Functions; Rapid Ascent Warning Function

Citizen C900
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C. Measurement of Water Temperature
When the water depth exceeds 1.0 meter, the watch begins to measure water
temperature starting after 1 minute . Water temperature is displayed while but-
ton (A) is pressed during water depth measurement.
Measuring range: -9.9°C to +40.0°C (0.1°C units)
D. Warning Functions During Water Depth Measurement
This watch is equipped with the following three warning functions. These
warning functions should be used for reference purposes to ensure safe diving.
<Rapid Ascent Warning Function>
The rapid ascent warning alarm sounds when the
ascent rate while diving exceeds 1.5 meters in 10
seconds. SLOW is displayed on the digital dis-
play during the time the rapid ascent warning
alarm is sounding. The alarm continues to sound
until a proper ascent rate is achieved.
5352
B. Measurement of Dive Time
When water depth exceeds 1.0
meter, measurement of dive time
starts automatically. When water
depth again becomes less than 1.0
meter, measurement of dive time
stops. However, if diving is
resumed below a depth of 1.0
meter within 10 minutes after dive
time measurement stopped, the
watch continues to measure and
display dive time from the time dive
time measurement stopped.
Measuring range: 0 minutes 00
seconds to 99 minutes 59 sec-
onds (1 second units)
* Measurement repeats after 100
minutes have elapsed.
0m
1m
Depth
Stops
Within 10
minutes
StartsStarts
(A)

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