Casio 3521 Operation Manual Download Page 20

Stopwatch :

Measuring unit: 1/100 second
Measuring range

23 hours, 59 minutes, 59.99 seconds (24
hours)

Measurement Functions:

Elapsed time, split times, 1st and 2nd
place finisher times

Timer :

Measuring unit: 1 second
Countdown range: 24 hours
Setting unit: 1 minute
Time up: 10-second beeper

Other :

High-brightness LED light (Full Auto Light,
afterglow, 1.5 or 3-second illumination
duration setting), power saving, battery
power indicator, operation tone on/off

Power Supply :

Solar panel and one rechargeable battery
Battery operating time: Approximately 14
months
Conditions:

Not exposed to light under the conditions
below.

Illumination: 1.5 seconds/day

Alarm: 10 seconds/day

Display: 18 hours/day

Diving Function

ー 

Number of dives: 50/year

ー 

Dive time: 60 minutes/dive

Note that battery operating time is reduced
by illumination conditions and dive time
duration in the Dive Mode.

Specifications are subject to change without
notice.

Troubleshooting

World Time

Q1

The time for a World Time City is not
correct.

The summer time setting (standard time/
summer time) is wrong.

l

Setting the World Time City

Diving Function

Q1

I can’t enter the Dive Mode.

The watch does not enter the Dive Mode while
its charge is low or dead. Charge the watch
before using it for diving.

Q2

The watch enters the Timekeeping
Mode when it switches from dive time
measurement to surface interval
measurement.

If the charge becomes low while in the Dive
Mode, the watch is not able to perform surface
interval measurement. Charge the watch
before using it for diving.

Q3

Measurement is in progress when I
switch from the Timekeeping Mode
to the Dive Mode.

This happens when a previous measurement
is being continued. Enter the Dive Mode and
reset measurement.

l

Measuring Elapsed Dive Time

Tide Level

Q1

There are errors in the tide
information.

Since the high tide and low tide times and tide
levels of the Tide Graph are calculated based
on past data, the calculated data may be
different from actual tide information.
Also note that the degree of the error can be
affected by terrain, weather, and other
conditions. Use the tide information of this
watch for reference only.
Be sure to check accurate tide forecast
information issued by various organizations,
and do not use the tide information of this
watch to determine tide levels used for
navigation or any other purpose where there
is the risk of danger.

Alarm and Hourly Time
Signal

Q1

An alarm does not sound.

Is the watch’s battery charged?

Keep the watch exposed to light until it
recharges sufficiently.

l

Charging

Other than the above.

The alarm’s settings may not be
configured. Configure the alarm settings.

l

Configuring Alarm Settings

Q2

The hourly time signal does not
sound.

Is the watch’s battery charged?

Keep the watch exposed to light until it
recharges sufficiently.

l

Charging

Other than the above.

The hourly time signal may be disabled.
Enable the hourly time signal.

l

Configuring the Hourly Time Signal
Setting

Watch Operation Guide 3521

20

Summary of Contents for 3521

Page 1: ...e Signal Using the Dive Function Measuring Elapsed Dive Time Measuring Surface Interval Time Exiting the Dive Mode Viewing Dive Log Data Deleting Dive Log Data Tide Level and Moon Age Checking the Current Tide Level and Moon Phase Checking the Tide Level and Moon Age for a Specific Date and Time Adjusting High Tide Times Stopwatch Measuring Elapsed Time Measuring a Split Time Timing the First and ...

Page 2: ...t and becoming lost and also creates the risk of personal injury Always take good care of your band and keep it clean Immediately stop using a band if you even notice any of the following loss of band flexibility band cracks band discoloration band looseness band connecting pin flying or falling out or any other abnormality Take your watch to your original retailer or to a CASIO service center for...

Page 3: ...ean dirt from a leather band for long periods can cause it to become discolored CAUTION Exposing a leather band to rubbing or dirt can cause color transfer and discoloration Metal Components Failure to clean dirt from metal components can lead to formation of rust even if components are stainless steel or plated If metal components exposed to sweat or water wipe thoroughly with a soft absorbent cl...

Page 4: ...ble for oxygen to come into contact with the metal which can lead to breakdown of the oxidization layer on the metal surface and the formation of rust Rust can cause sharp areas on metal components and can cause band pins to fly out of position or to fall out If you ever notice any abnormality immediately stop using your watch and take it to your original retailer or to an authorized CASIO service...

Page 5: ... countdown reaches zero Note The illustrations included in this operation guide have been created to facilitate explanation An illustration may differ somewhat from the item it represents General Guide A Moon Graph B Tide Graph C Day of the week D Hour minute second E Month day A button Holding down this button for at least two seconds in any mode displays the setting screen B button Press to turn...

Page 6: ...are not wearing the watch put it in a location where it is exposed to bright light While you are wearing the watch make sure that its face solar panel is not blocked from light by the sleeve of your clothing Power generation efficiency is reduced even when the face of the watch is blocked only partially NO YES Important Some light sources and environments can cause the watch to become extremely ho...

Page 7: ... Sunny day near a window 10 000 lux Dead battery n Medium charge 9 hours Medium charge n High charge 135 hours High charge nFull charge 36 hours Overcast day near a window 5 000 lux Dead battery n Medium charge 19 hours Medium charge n High charge 275 hours High charge nFull charge 73 hours Indoor fluorescent lighting 500 lux Dead battery n Medium charge 243 hours Medium charge n High charge High ...

Page 8: ...he battery Certain positions during diving may interfere with Auto Light operation Note Auto Light is disabled when any one of the conditions below exists ー Alarm timer alert or other beeper sounding Configuring the Auto Light Setting 1 Enter the Timekeeping Mode l Navigating Between Modes 2 Hold down B for at least three seconds to toggle Auto Light between enabled and disabled LT is displayed wh...

Page 9: ...le 4 Press C 5 Use D to change the summer time setting OFF The watch always indicates standard time ON The watch always indicates summer time 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 Setting the Time Date Important ConfiguretheHomeCitysettingbefore...

Page 10: ...A for at least two seconds Release the button when the city code starts to flash City code 3 Press C twice This causes 12H or 24H to flash on the display 4 Press D to select 12H 12 hour timekeeping or 24H 24 hour timekeeping 24 hour timekeeping 12 hour timekeeping 5 Press A to complete the setting operation Note While the setting is being configured the watch will exit the setting operation automa...

Page 11: ...seven times at five minute intervals The alarm sound is muted in the cases described below ー When battery power is low ー When watch is at Level 2 power saving l Power Saving Function Configuring Alarm Settings 1 Enter the Alarm Mode l Navigating Between Modes 2 Press D to scroll through alarms 1 to 4 SNZ until the one you want to configure is displayed Alarm number Alarm time 3 Hold down A for at ...

Page 12: ...urly time signal Each press of A toggles between on and off Turning off all alarms will cause ALM alarm to disappear from the display while disabling the hourly time signal causes SIG hourly time signal to disappear from the display Note If ALM alarm is still displayed it means that another alarm is still turned on To turn off all of the alarms repeat steps 2 and 3 until the ALM alarm indicator is...

Page 13: ...en Modes 2 Use the operations below to perform a timer operation D D D D Surface Interval 1 start Hold down at least one second Dive 1 start Dive 2 start Surface Interval 2 start Hold down at least one second 3 To reset the ongoing surface interval measurement operation press A Resetting the measurement causes log data to be recorded Note The surface interval is not displayed during measurement On...

Page 14: ...ide level and Moon age in your currently selected Home Time city Important Displayed information is intended for reference only Do not use it for maritime navigation etc Before looking up a tide level or Moon age configure your Home City settings l Setting a Home City Checking the Current Tide Level and Moon Phase The current time s tide graph and the current date s Moon phase Moon Graph are displ...

Page 15: ...ide Graph Moon Graph Mode displays a Tide Search or Moon Search screen 2 Press A to toggle between Tide Search and Moon Search Hour minute Month day Tide Graph Moon Search Tide Search Moon Graph Moon age The initial setting of Tide Search is 6 00 a m To check the Tide Graph at the top of each hour of the current day 1 Enter the Tide Graph Moon Graph Mode l Navigating Between Modes 2 Press A to dis...

Page 16: ...ime 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 to change the direction N S Moon visible towa...

Page 17: ...os Timing the First and Second Place Finishers 1 Enter the Stopwatch Mode l Navigating Between Modes Hours Minutes seconds 1 100 seconds 2 Use the operations below to measure elapsed time D A D 2nd Finisher 1st Finisher Start This displays the time of the first finisher 3 Press A to display the time of the second finisher 4 Press A to reset the measurement time to all zeros Timer The timer counts ...

Page 18: ...timer counts down time in 1 second units 1 Enter the Timer Mode l Navigating Between Modes Hour minute second 2 Use the operations below to perform a timer operation D D D Time up Resume Pause Countdown starts Start A beeper will sound for 10 seconds to let you know when the end of a countdown is reached You can reset a paused countdown to its start time by pressing A 3 Press any button to stop th...

Page 19: ...gkok 7 SIN Singapore 8 HKG Hong Kong BJS Beijing TPE Taipei SEL Seoul 9 TYO Tokyo ADL Adelaide 9 5 GUM Guam 10 SYD Sydney NOU Noumea 11 WLG Wellington 12 PPG Pago Pago 11 HNL Honolulu 10 ANC Anchorage 9 YVR Vancouver 8 LAX Los Angeles YEA Edmonton 7 DEN Denver MEX Mexico City 6 CHI Chicago NYC New York 5 SCL Santiago 4 YHZ Halifax City Offset YYT St John s 3 5 RIO Rio de Janeiro 3 FEN Fernando de ...

Page 20: ...comes low while in the Dive Mode the watch is not able to perform surface interval measurement Charge the watch before using it for diving Q3 Measurement is in progress when I switch from the Timekeeping Mode to the Dive Mode This happens when a previous measurement is being continued Enter the Dive Mode and reset measurement l Measuring Elapsed Dive Time Tide Level Q1 There are errors in the tide...

Page 21: ...n alarm hourly time signal illumination and or other power intensive functions are used within a short period of time the charging capacity of the battery will drop and cause the watch to go into a charge recovery mode Function availability will be temporarily limited but functionality will return after the battery recovers l Checking the Charge Level Q3 CHG is flashing on the display The charge l...

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