Adjusting High Tide Times; Stopwatch; Measuring Elapsed Time - Casio G-Shock Frogman GW-8230B-9AER Operation Manual

Adjusting High Tide Times

You can improve the accuracy of the
displayed high tide by adjusting the high tide
time in accordance with information available
on the internet or in a newspaper.
1.
Enter the Tide Graph/Moon Graph Mode.
Navigating Between Modes
l
2.
Hold down (A) for at least two seconds.
Release the button when the tide graph
high tide time hour setting starts to flash.
Tide graph high tide time hour
3.
Use (C) to select the setting item you want
to change.
Each press of (C) cycles through setting
●
items in the sequence shown below.
High tide time hour
High tide time minute
Lunar observation direction
Watch Operation Guide 3521
4.
Configure the settings.
Specifying the high tide time
●
Use (B) and (D) to change the value.
Holding down (B) or (D) scrolls
ー
through settings at high speed.
Note
To return the high tide time setting to
●
its initial factory default setting, press
(B) and (D) at the same time.
For a location where there are two high
●
tides per day, set the time of the first
high tide. The watch will automatically
calculate the time of the second high
tide.
The high tide time you set here does
●
not change even if you turn on daylight
saving time in the Timekeeping Mode.
Specifying the lunar observation
●
direction
Use the operation below to select
"Northern Hemisphere Moon phase
(Moon visible towards the south)" or
"Southern Hemisphere Moon phase
(Moon visible towards the north)".
Use (D) and [
direction.
[N
south
[N
north
5.
Repeat steps 3 and 4 to perform high tide
time calibration.
6.
Press (A) to complete the setting
operation.
Note
While the setting is being configured,
●
the watch will exit the setting operation
automatically after about two or three
minutes of non-operation.
] to change the
S]: Moon visible towards the
S]: Moon visible towards the

Stopwatch

The stopwatch measures elapsed time in units
of 1/100 second up to 23 hours, 59 minutes,
59.99 seconds (24 hours).
When this maximum limit is exceeded,
elapsed time measurement returns to 0 and
timing continues from there.

Measuring Elapsed Time

1.
Enter the Stopwatch Mode.
Navigating Between Modes
l
Hours
Minutes, seconds, 1/100 seconds
2.
Use the operations below to measure
elapsed time.
D
Start
D
Stop
D
Resume
D
Stop
3.
Press (A) to reset the measurement time
to all zeros.
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