Barometric Pressure Change Indicator; Calibrating Barometric Pressure Readings - Casio 3452 Operation Manual

Barometric Pressure Change
Indicator
Each time (A) is held down for about one
second, the barometric pressure change
indicator will toggle between enabled and
disabled. While the barometric pressure
change indicator is enabled, the watch will
beep to alert you whenever it detects a
significant change in air pressure readings
(due to sudden altitude change, or to the
passage of a high or low pressure area).
While the barometric pressure change
●
indicator is enabled, the [BARO] indicator is
displayed along with one of the indicators
below.
This
Means 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
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.
Operation Guide 3452
Note
You can also enable the barometric
●
pressure change indicator by
performing the steps below.
A Press (A).
B Rotate the rotary switch to move the
pointer to [BARO INFORMATION].
C Press the rotary switch.
D Rotate the rotary switch to select the

barometric pressure change indicator

setting you want.
[ENABLE]: Barometric pressure
change indicator enabled
[DISABLE]: Barometric pressure
change indicator disabled
E Press the rotary switch.
If the barometric change indicator is
●
enabled, readings are taken every two
minutes even while the watch is not in
the Barometer/Temperature Mode.
The barometric pressure change
●
indicator becomes disabled
automatically 24 hours after it is
enabled.
Time adjustment using GPS signal
●
reception or phone connection is
disabled while the barometric pressure
change indicator is enabled. Power
saving is also disabled.
Power Saving Function
l
The barometric pressure change
●
indicator will become disabled
automatically when the battery
becomes or lower.
Calibrating Barometric
Pressure Readings
The watch's pressure sensor is adjusted at the
factory and normally does not require
calibration. However, you can calibrate the
displayed value if you notice major errors in
readings.
Important!
The watch will not be able to produce
●
correct barometric pressure readings if
you make a mistake during the
calibration procedure. Check to make
sure that the value you use for
calibration produces correct pressure
readings.
1.
Press (A).
This displays the Barometer/
Temperature Mode setting screen.
2.
Rotate the rotary switch to move the
pointer to [CALIBRATION].
3.
Press the rotary switch.
4.
Rotate the rotary switch to move the
pointer to [BAROMETER].
5.
Press the rotary switch.
6.
Rotate the rotary switch to move the
pointer to [MANUAL].
Selecting [OFFSET OFF] returns
●
barometric pressure calibration to its
factory default state.
7.
Press the rotary switch.
Rotary Switch
24