Checking The Change In Barometric Pressure Between Two Readings; Barometric Pressure Change Indications - Casio 5594 Operation Manual

Checking the Change in
Barometric Pressure
between Two Readings
When you perform the procedure below in the
Barometer Mode, the second hand will
indicate the difference between the current
barometric pressure measurement and the
last auto measurement value (taken at two-
hour or two-minute intervals).
1.
Enter the Barometer Mode.
Navigating Between Modes
l
2.
Hold down (D) for at least two seconds.
Release the button when [SET] starts to
flash and then disappears from the
display.
This displays the current barometric
pressure and enters the Barometric
Pressure Offset Mode.
3.
Press (E).
This causes the display to show [HAND]
n [DIFF] or [SEC].
4.
Use (A) to select [DIFF].
Each press of (A) cycles through the
settings shown below.
[DIFF]: Second hand indicates barometric
pressure (Barometric Pressure
Differential Indicator)
[SEC]: Second hand indicates the current
time seconds.
Example: Barometric pressure differential
of -3 hPa (two-hour measurement
interval)
Unit: hPa
10 5
Range:
0
±10 hPa
(1 hPa units)*
Pressure
Differential
−10 −5
Indicator
* Two-hour Measurement Interval: ±10
hPa (1 hPa units)
Two-minute Measurement Interval: ±1
hPa (0.1 hPa units)
5.
Press (D) to exit the setting screen.
Operation Guide 5594
Note
If the barometric pressure differential is
●
greater than +10 hPa (when the
measurement interval is two hours) or
+1 hPa (when the measurement
interval is two minutes), the second
hand will point to [OVER]. If it is less
than -10 hPa (when the measurement
interval is two hours) or -1 hPa (when
the measurement interval is two
minutes), the second hand will point to
[UNDER].
A reading that is outside the allowable
●
measurement range of 260 hPa to
1,100 hPa (7.65 inHg to 32.45 inHg),
or any measurement error will cause
the second hand to move to 9 o'clock.
Barometric Pressure Change
Indications
Whenever the watch detects a significant
change in air pressure readings (due to
sudden ascent or descent, or to the passage
of a low pressure or high pressure area), it will
beep to let you know. An arrow will also flash
on the display at this time if the watch is in the
Barometer Mode, or if it is in the Timekeeping
Mode with the barometric pressure graph
displayed. The arrow that appears shows the
direction of the pressure change. These alerts
are called "Barometric Pressure Change
Indications".
This
indicator:
Sudden drop in pressure
Sudden rise in pressure
Sustained rise in pressure,
shifting to a fall
Sustained fall in pressure, shifting
to a rise
Means this:
Important!
To ensure correct barometric pressure
●
change indicator operation, enable it in
a location where the altitude is
constant (such as a lodge, camp area,
or on the ocean).
A change in altitude causes a change
●
in air pressure. Because of this, correct
readings are impossible. Do not take
readings while ascending or
descending a mountain, etc.
1.
Enter the Barometer Mode.
Navigating Between Modes
l
2.
Hold down (A) for at least two seconds.
If this turns on barometric pressure trend
information, [INFO ON] will stop flashing
and then the [BARO] indicator will appear
on the display.
3.
To disable barometric pressure trend
information, hold down (A) again for at
least two seconds.
Note
If Barometric Pressure Change
●
Indications are on, barometric
pressure readings are taken every two
minutes even while the watch is not in
the Barometer Mode.
The barometric pressure change
●
indicator becomes disabled
automatically 24 hours after it is
enabled.
You will not be able to turn on
●
barometric pressure trend information
if the watch's battery level is low.
Low battery power will also cause
●
barometric pressure trend information
to turn off automatically.
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