E-47
Measurement Error Troubleshooting
Negative water depth error
The conditions described below will cause a negative depth reading and cause the warning mark ( ) to
fl ash on the display.
•
Entering the Diving Mode while in the water (at a depth of 0.1 to 1.4 meters) and then surfacing or
exiting the water after a dive.
•
Using the watch where abnormal barometric pressure changes occur.
Almost all water depth errors occur on the water surface, and are cleared by auto 0-meter reset. A fl ashing
warning mark ( ) indicates that a negative water depth error has occurred, and that there will be large
error in displayed data.
A negative depth error does not indicate malfunction of the watch. The watch will operated normally
after the error is cleared. However, any data that was measured prior to the depth error will have
large error. Returning to the Timekeeping Mode and entering the Diving Mode again to re-start new
measurement is recommended.
•
Normal data measurement and log data recording will be performed
after a negative depth error is displayed, but the warning mark ( ) will
continue to fl ash.
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Negative water depth error
display
E-46
Dive Start
Entering the Diving Mode and then initially submersing to a depth greater than 1.5 meters starts dive time
measurement.
Dive End
At the end of a dive, surfacing for the fi nal time (immediately before switching to the Timekeeping Mode)
from a depth of 1.5 meters or greater to a depth of 1.4 meters or less (displayed as 0.0 meters) is
regarded as the dive end time.
•
The dive end time is not recorded.
Dive Time
The dive time displayed by the watch is defi ned as the cumulative time spent at depths of 1.5 meters and
greater following the start of a dive. Resuming a dive (successive dive) within 10 minutes of elapsed
surface time is treated as a continuation of the current dive session and its time is added on to the dive
time. Refer to the nearby illustration for details (page E-45).
Important!
•
Once you enter the Diving Mode, everything measured is considered as part of the same dive until you
enter the Timekeeping Mode again.
•
To have a subsequent dive recorded in a separate log record, enter the Timekeeping Mode and then
re-enter the Diving Mode.
•
If during a dive session you repeatedly surface and dive, the time spent on the water surface is not
included in the dive time.
E-45
Dive Time Measurement
Dive time measurement starts and stops automatically at a depth of 1.5 meters. Entering the Diving Mode
and then initially submersing to a depth greater than 1.5 meters starts dive time measurement. After that,
your dive time will be the cumulative time you spent at depths greater than 1.5 meters during your current
dive session. In the example shown below, the total time spent at depths greater than 1.5 meters would
be: 20 + 15 = 35 minutes.
Dive Time Measurement Example
Enter the Diving Mode.
Current time
Depth:
1.5 meters
Water depth
Enter the Timekeeping Mode.
Dive start
time
Dive end
time
20 minutes
15 minutes
Dive time = 35 minutes
E-44
Display Contents
Display Range
0.0 meters to 80.0 meters (0.0ft~262.5ft)
“
dEEP
” is displayed when the depth reaches or exceeds 80.0 meters.
A measurement that is outside the allowable range in displayed as
- -.-
.
Measuring Interval
1 second*
To conserve battery power, measurements at depths up to 0.3 meters are
taken at 10-second intervals.
* After the watch enters the Diving Mode, the measuring interval switches to one second when a depth of
0.3 meters or greater is measured.
Water Depth and Water Pressure
Underwater pressure increases along with the depth. In the case of seawater (Specifi c Gravity: 1.025),
water pressure increases one atmosphere (1.03kg/cm
2
) with each 10-meter increase in depth. The water
depth sensor of your watch detects water pressure, and the watch uses the relationship between water
pressure and depth to display a seawater depth value.
Dive Time Measurement
Measurement range (6 hours maximum)
If the dive time exceeds six hours, the watch will automatically enter the Timekeeping Mode and record a
dive time of 6:00.
•
Less than 180 minutes: minutes, seconds display, measurement in 1-second units
•
After 180 minutes: hours, minutes display, 1-minute units
E-43
Diving Function Measurement Data and Ranges
Water Depth Measurement
Measurement Data and Ranges
Dive Time
Measurement unit: 1 second
Measuring range: 5:59'59" (6 hours)
Water Depth
Measurement unit: 0.1 meter (0.5ft)
Measuring range: 0.0 meters to 80 meters (0.0ft~262.5ft)
Digital Compass
Measurement unit: 1°
Measuring range: 0 to 359°
Water Temperature
Measurement unit: 0.1°C (0.2°F)
Measuring range: –10°C to 60°C (14°F~140°F)
Surface Time
Measurement unit: 1 minute
Measuring range: 47:59' (48 hours)
•
Not displayed after 48 hours following dive completion.
Important!
•
The watch will take approximately fi ve minutes to become acclimatized to sudden temperature
changes (difference between air temperature and water temperature, change in the water temperature,
etc.) and to display the actual water temperature.
E-42
In the Diving Mode, hold down
A
for about fi ve seconds.
•
This will set the currently detected pressure as the 0-meter depth.
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Diving Mode
About 5 seconds
A
Dive measurement start error
If you start a dive without entering the Diving Mode and then enter the
Diving Mode at a depth greater than 1.5 meters, the current depth will be
displayed using the standard atmosphere 1,013 hPa as the 0-meter
depth.
•
Since the water surface is not measured as 0 meters, there is large
error between the measured depth and the actual depth.
•
At this time, a warning mark ( ) will fl ash on the display to warn you.
•
In this case, measurement starts at a depth of 1.5 meters or greater, so
the displayed dive time will be shorter than the actual dive time.
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Warning mark
E-41
To display the surface time
In the Timekeeping Mode, press
A
.
•
Surface time can be displayed only while a surface time measurement
operation is in progress.
Useful Functions
To reset 0-meter depth manually
Important!
•
This function is disabled at depths greater than 1.5 meters in order to avoid operation error.
Normally, the watch uses the barometric pressure it detects immediately after you enter the Diving Mode
as the 0-meter depth. If you enter the Diving Mode while in the water (which will result in a wrong auto
0-meter setting), you can use manual 0-meter reset to correct the setting.
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Surface time
E-40
Surface Time Measurement
For repeat diving, your watch has function that automatically measures the time that elapses after a dive
ends as surface time. Surface time is measured for up to 48 hours after a dive ends. If you perform a
repeat dive while the surface time measurement operation is in progress, the measurement operation will
be restarted from after the end of the new dive.
Surface Time Measurement Example
Water depth
1.5m
Dive time
Surface time
Enter the Diving
Mode.
Enter the Timekeeping
Mode.
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Timekeeping Mode
Surface Time Display
Example
Surface time
Operation Guide 3445