Depth Gauge; Depth Graph - Casio 3047 Operation Manual

To turn display of the barometric pressure differential pointer on
and off
1. In the Barometer/Thermometer Mode, hold
down E until
display area.
2. Release E, and wait for four or five more
seconds until either
reference temperature value (if set) starts to
flash. This is the setting screen.
3. Press D twice to display the pointer on/off
setting screen.
4. Press C to toggle display of the barometric
pressure differential pointer on (
and off (
5. When the setting is the way you want, press
E to exit the setting screen.
About Barometric and Temperature Measurements
• Barometric pressure and temperature measurement operations are
performed as soon as you enter the Barometer/Thermometer Mode. After
that, barometric pressure and temperature measurements are taken every
five seconds.
• You also can perform a barometric pressure and temperature measurement
at any time by pressing B in the Barometer/Thermometer Mode.

Depth Gauge

The pressure sensor of the watch also can be used to perform underwater
depth measurement while skin diving or snorkeling. Depth readings are taken
every three seconds, and displayed as a value up to 30 meters (98 feet). You
can store the data of your last dive in log memory, including total time
submerged, maximum depth, and water temperature at the maximum depth
attained during your dive. You can view the log data of your last dive before
beginning a new dive, and even take direction readings while in the Depth
Gauge Mode.
Important!
• This watch is intended for use up to skin diving and snorkeling. Never use
this watch while scuba diving.
• This watch is designed to start depth measurement and record data in
memory after a depth of 1 meter (4 feet) is reached. Because of this, the
explanations in this manual uses the term "submerged" to refer to any
depth deeper than 1 meter, and the "on the surface" to refer to any depth
shallower than 1 meter.
• Leaving the watch in the Depth Gauge Mode while not in the water consumes
battery power. Exit the Depth Gauge Mode whenever you are not using it.
What is "a dive"?
A dive starts when you pass a depth of one meter (about four feet) while the
watch is in the Depth Gauge Mode. The dive ends when you are on the
surface and exit the Depth Gauge Mode. A dive does not end if you surface
but do not exit the Depth Gauge Mode.
Enter the Depth Gauge Mode.
Depth = 1.0 m
(4 ft.)
Start of dive
20 sec.
Maximum depth
30 sec.
Total time submerged: 1 minute 50 seconds
• Remember that the term "dive" as used in this manual refers to skin diving
or snorkeling only.
• The watch will start depth measurement automatically when the sensor
detects that your depth exceeds one meter (about four feet).
• Depth measurement stops automatically whenever your depth becomes
less than one meter (four feet).
• Depth measurement restarts whenever you re-submerge past one meter
(four feet). All data that is measured between the start of the dive and the
end of the dive is treated as part of the same dive, no matter how many
times you surface during the dive.
Operation Guide 3047
SET appears in the upper
OFF
or the current
ON displayed)
OFF displayed).
Exit the Depth Gauge Mode.
End of dive
1 min.
To perform depth measurement
1. Before beginning a dive, in the Timekeeping,
Elapsed measurement time
Digital Compass, or Barometer/Thermometer
Mode, press C to enter the Depth Gauge
Mode.
• It can take up to four or five seconds until
Current
depth
2. Enter the water and submerge past one meter
(four feet) to start the dive.
3. When you want to end the dive, return to the surface and then press D to
exit the Depth Gauge Mode.
• Exiting the Depth Gauge Mode causes the data accumulated during the
dive (time submerged, maximum depth attained, water temperature at
maximum depth) to be stored in log memory.
• The elapsed time is displayed in minutes and seconds for the first hour.
After the first hour, it switches to hours and minutes.
• Pressing E while your current depth is less than one meter will toggle the
display between the graph and the temperature screens.
• If the watch stays at a depth of less than one meter and you do not perform
any operation for about one hour, the watch will revert to the Timekeeping
Mode automatically.
• The watch will not exit the Depth Gauge Mode if any value other than
) is displayed for the depth when you press D. If
(or 0
appear on the display even though you are on the surface (depth of less
than 1 meter/4 feet), perform the procedure under "To reset the reference
depth to 0 meters (feet) manually".
• You can select either meters (m) or feet (ft) as the display unit for depth. For
details, see "To specify the depth unit".
• See "Depth Data Recall Mode" for information about viewing dive data.
Important!
Note the following important precautions whenever using the Depth Gauge
Mode.
Before Skin Diving/Snorkeling
• Before beginning a dive, check to make sure that none of the
following marks are shown on the display.
❑ CHG (indicating a weak battery)
❑ RECOV (indicating a weak battery)
❑
ERR
(indicating sensor malfunction)
• Make sure that
(or 0 ) is displayed at your current depth.
• Make sure that the watch is set to the correct time of day.
• Check the glass, case and band for cracks or chips.
• Make sure that the band is fastened securely around your wrist.
While Skin Diving/Snorkeling
• Check to make sure that timer operation and depth measurement are
being performed properly.
• Take care when skin diving/snorkeling near rocks or coral to avoid
scratching the watch.
After Skin Diving/Snorkeling
• To avoid corrosion, rinse your watch thoroughly with fresh water to
remove salt water, dirt, etc. When possible, soak the watch in fresh
water overnight to make sure that all salt is removed.
• When using a metal band, clean inside the gaps in the band
occasionally using a soft toothbrush and soapy water. Failure to do so
can result in corrosion of the timepiece, soiling of clothing or irritation
to sensitive skin.

Depth Graph

Changes in depth are displayed in a graph in the Depth Gauge Mode. The
contents of the graph are updated every three seconds whenever you enter
the Depth Gauge Mode.
• The horizontal axis of the graph represents 3-second time increments, and
the bar on the far right is the latest measurement result.
• The vertical axis represents depth values, in 5-meter steps.
• The graph always indicates depths in meters (m), even if you have feet (ft)
selected as the depth unit.
• If you press a button while a measurement operation is in progress, the
measurement operation is stopped, and the graph is not updated.
• Manually resetting the reference depth to 0 meters will change the pressure
reference value. Because of this, all of the graph's data will be cleared.
• If an error occurs while a measurement operation is in progress, the graph
bar for that measurement is left blank.
• Pressing E while at a depth of less than one meter will toggle between the
depth graph and the temperature screen.
(or 0 ) appears on the display.
(or 0 ) does not
0 to 5 meters
5.0 to 10 meters
10.0 to 15 meters
15.0 to 20 meters
20.0 to 25 meters
25.0 to 30 meters
More than 30 meters
5