Checking The Change In Barometric Pressure Between Two Readings; Sudden Barometric Pressure Change Indications - Casio 5602 Operation Manual

4.
Use (C) to change the measurement
interval.
Two-hour interval Two-minute interval
C
When the measurement interval of the
●
barometric pressure graph is two hours,
measurements are taken every two
minutes.
When the measurement interval of the
●
barometric pressure graph is two
minutes, measurements are taken
every five seconds.
5.
Press (E) to complete the setting
operation.
Note
If you switch to the two-minute
●
measurement interval graph, the
watch will automatically return to the
two-hour measurement interval graph
after 24 hours.
Note that the graph will not be
●
displayed immediately after it is
switched to a two-minute
measurement interval graph.
Predicting Upcoming Weather
●
A trend
Means this:
like this:
Rising barometric pressure,
which indicates that upcoming
weather probably will be fair.
Falling barometric pressure,
which indicates that upcoming
weather probably will be bad.
Note
Large changes in barometric pressure
●
and/or temperature can cause past
data readings to be plotted outside of
the visible area of the graph. Though
plots are not visible, the data is still
maintained in watch memory.
The barometric pressure graph is not
●
displayed while Barometric Pressure
Change Indications are displayed.
Sudden Barometric Pressure
l
Change Indications
Operation Guide 5602
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 (E) for at least two seconds.
Keep the button depressed when [SET]
starts to flash. Release the button when
[SET] disappears from the display.
This displays the current barometric
pressure and enters the Barometric
Pressure Offset Mode.
3.
Press (D).
This causes the display to show [HAND]
[DIFF] or [SEC].
n
4.
Use (C) to select [DIFF].
Each press of (C) 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
−10 −5
* Two-hour Measurement Interval: ±10
hPa (1 hPa units)
Two-minute Measurement Interval: ±1
hPa (0.1 hPa units)
5.
Press (E) to complete the setting
operation.
Note
Sudden 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".
indicator:
Range: ±10 hPa
0
(1 hPa units)*
Pressure
Differential Indicator
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.
This
Means this:
Sudden drop in pressure
Sudden rise in pressure
Sustained rise in pressure,
shifting to a fall
Sustained fall in pressure, shifting
to a rise
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