Operation guide 5371 – G-Shock GWN1000-9A User Manual

Page 6

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E-40

Moving the Hands for Easy Viewing of the Digital Dials

You can use the procedure below to move the analog hands in order to view the dial and the digital
display better.

Note

The analog hands will not move while battery power is low.

To shift the hands and view digital info
While holding down

L, press B.

This will cause the timekeeping (hours, minutes, seconds) hands to move to 2 o’clock.

To return the hands to their normal positions, press

A, B, or C.

E-41

Note

The hands will also return to their normal positions if you do not perform any operation for about 10

seconds.

If the hands have moved to 2 o’clock because you pulled out the crown,* they will return to their normal

positions when you push the crown back in.

In this case, the hands will return to normal timekeeping when you push the crown back in.

* The hands will not move to 2 o’clock if you pull out the crown while confi guring the city code setting

(pages E-34, E-77) or the summer time setting (pages E-34, E-77), or while manually confi guring
time and date settings (page E-36).

Auto Hand Shift
If the hour hand and/or minute hand is over the digital display when a displayed barometric pressure,
altitude, or temperature reading is updated, the hand(s) will shift automatically (to 4 o’clock or 8 o’clock)
and provide a better view of the information on the display.
The hands will return to their normal position after about three seconds.

E-42

Specifying Altitude, Barometric Pressure, and Temperature Units

Use the procedure below to specify the altitude, barometric pressure, and temperature units to be used in
the Altimeter Mode, Barometer Mode and the Thermometer Mode.

Important!

When TYO (Tokyo) is selected as the Home City, the altitude unit is set automatically to meters (m), the

barometric pressure unit to hectopascals (hPa), and the temperature unit to Celsius (°C). These
settings cannot be changed.

To specify altitude, barometric pressure, and temperature units

1. Make sure the watch is in the mode for the type of unit you want to

specify (Altimeter, Barometer, or Thermometer Mode).

For information about changing modes, see “Selecting a Mode”

(page E-30).

2. Pull out the crown.

The timekeeping (hour, minute, second) hands will move to

2 o’clock.

3. Press

B as many times as necessary until UNIT appear on the digital

display.

For altitude, press

B three times. For barometric pressure and

temperature, press

B once.

4. Rotate the crown to change the unit setting.

5. After the settings are the way you want, push the crown back in.

E-43

Taking Barometric Pressure Readings

This watch uses a pressure sensor to measure air pressure (barometric pressure).

To take barometric pressure readings

In the Timekeeping Mode or any sensor mode, press

A a number of

times until BARO (Barometer Mode) appears on the digital display.

In a non-sensor mode, hold down

B for about two seconds to enter

the Timekeeping Mode. Next, perform the above step.

About one second after entering the Barometer Mode (BARO), the fi rst

barometric pressure reading will be displayed.

Readings are continuously taken for about one hour: every fi ve

seconds for the fi rst three minutes and then every two minutes for the
remainder of the hour.

Pressing

C or L, or rotating the crown while a reading operation is in

progress will extend the operation for approximately one hour from
point the button was pressed or the crown was rotated.

The watch will return to the Timekeeping Mode after the reading

operation is complete (about one hour).

Pressing

B while a reading operation is in progress will stop the

operation and enter the Timekeeping Mode.

Barometric
pressure graph

Barometric
pressure

Barometric
pressure graph

Barometric
pressure

E-44

Note

When you enter the Barometer Mode, the second hand may indicate seconds (of the current time) or
the barometric pressure differential (page E-45). The initial second hand function will be the same as
what was selected the last time you took a barometric pressure reading. To toggle between the two
second hand functions (indicating seconds or indicating the barometric pressure differential) press

C.

Barometric Pressure

Barometric pressure is displayed in units of 1 hPa (or 0.05 inHg).

The displayed barometric pressure value changes to - - - if a measured barometric pressure falls outside
the range of 260 hPa to 1,100 hPa (7.65 inHg to 32.45 inHg). The barometric pressure value will reappear
as soon as the measured barometric pressure is within the allowable range.

Display Units
You can select either hectopascals (hPa) or inchesHg (inHg) as the display unit for the measured
barometric pressure. See “To specify altitude, barometric pressure, and temperature units” (page E-42).

E-45

Checking Barometric Pressure Changes and Trends

Your watch provides the three methods below for checking barometric pressure changes and trends.

Checking the latest change in barometric pressure (Barometric pressure differential pointer described

below)

Checking barometric pressure changes for the past 20 hours (Barometric Pressure Graph, page E-47)

Checking for signifi cant barometric pressure changes (Barometric Pressure Change Indicator, page

E-49)

Barometric Pressure Differential Pointer
Your watch automatically takes barometric pressure measurements every two hours (at the 30 minute
mark of each even numbered hour), regardless of the mode it is in.
The second hand of the watch indicates the difference between the current barometric reading and
previous automatic reading, within the range of ±10hPa (1hPa unit). This keeps you informed about
current barometric pressure changes in your area.

To show and hide barometric pressure differential
1. In the Timekeeping Mode or any sensor mode, press

A a number of times until BARO (Barometer

Mode) appears on the digital display.

In a non-sensor mode, hold down

B for about two seconds to enter the Timekeeping Mode. Next,

perform the above step.

2. Press

C.

Note

Press

C to toggle the second hand between its two functions (indicating seconds or indicating the

barometric pressure differential).

E-46

Reading Barometric Pressure Differential Pointer
Pressure differential is indicated in the
range of ±10 hPa (0.3 inHg), in 1 hPa (0.03
inHg) units.

The nearby screen shot, for example,

shows what the second hand would
indicate when the calculated pressure
differential is approximately – 5 hPa
(approximately – 0.15 inHg).

The second hand will point to + OVER or
– UNDER if the barometric pressure
differential is outside the allowable range
of the scale.

The second hand will move to 9 o’clock
if a sensor reading could not be taken
for some reason or if the reading is
outside the allowable range.

Barometric pressure is calculated and

displayed using hPa as the standard.
The barometric pressure differential also
can be read in inHg units as shown in
the illustration (1 hPa

= 0.03 inHg).

Barometric
pressure
differential
pointer

inHg values

hPa values

Current pressure

greater than most

recent measured

pressure

Current pressure

less than most

recent measured

pressure

−0.15

−5

−10

−0.3

Barometric
pressure
differential
pointer

inHg values

hPa values

Current pressure

greater than most

recent measured

pressure

Current pressure

less than most

recent measured

pressure

−0.15

−5

−10

−0.3

E-47

Barometric Pressure Graph

Your watch automatically takes barometric pressure measurements every
two hours (at the 30 minute mark of each even numbered hour), regardless of
the mode it is in.
While the watch is in the Barometer Mode or Timekeeping Mode, the digital
display shows a graph of pressure change for the past 20 hours (10
readings). By monitoring these changes you can predict the weather with
reasonable accuracy.

To display the barometric pressure graph in the Timekeeping Mode, press

C a number of times to cycle through digital display screens until it
appears (page E-33).

Reading the Barometric Pressure Graph
The barometric pressure graph shows a chronological history of pressure readings.

The vertical axis of the graph represents barometric pressure, with each

dot standing for the relative difference between its reading and that of the
dots next to it. Each dot represents 1 hPa.

The latest automatic reading is indicated by the rightmost segment in the

graph.

The following shows how to interpret the data that appears on the barometric pressure graph.

Rising barometric pressure indicates that upcoming weather will improve.

Falling barometric pressure indicates that upcoming weather will deteriorate.

Barometric pressure
graph

Barometric pressure
graph

Barometric
pressure

Time

Barometric
pressure

Time

Operation Guide 5371

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