Casio 3445 Operation Manual Download Page 10

E-79

 Viewing Time Stamp Records (Time Recall)

You can use the Time Recall Mode to view time stamp records you created in the Timekeeping Mode and 
other modes.

To create a time stamp record

To create a time stamp record, hold down 

B

 for about one second in any mode until the watch beeps.

 

REC

 will appear on the display, indicating that a record of the current date and time was created.

To view time records

1. In the Timekeeping Mode, press 

C

 twice.

 This enters the Time Recall Mode. 

REC

 appears on the display for 

one second, followed by the newest time record.

 Refer to page E-26 for information about navigating between modes.

 Pressing 

A

 displays the date (year, month day) and time for about 

two seconds.

2. Use 

D

 to select the record you want.

 Each press of 

D

 scrolls through log records in sequence, from 

newest (record number 

-01-

) to the oldest (record number 

-20-

).

 Pressing 

D

 displays the previous record, pressing again displays 

the record before that one, and so on.

 Holding down 

D

 scrolls log records at high speed.

 Records are numbered so an older record has a lower number.

Record number

Date (month, day)

Time

E-78

 Location

 Taking a direction reading when you are near a source of strong magnetism can cause large errors in 

readings. Because of this, you should avoid taking direction readings while in the vicinity of the 
following types of objects: permanent magnets (magnetic necklaces, etc.), concentrations of metal 
(metal doors, lockers, etc.), high tension wires, aerial wires, household appliances (TVs, personal 
computers, washing machines, freezers, etc.)

 Accurate readings are impossible indoors, especially inside ferroconcrete structures. This is because 

the metal framework of such structures picks up magnetism from appliances, etc.

 Accurate direction readings are also impossible while in a train, boat, air plane, etc.

Storage

 The precision of the bearing sensor may deteriorate if the watch becomes magnetized. Because of 

this, you should store the watch away from magnets or any other sources of strong magnetism, 
including: permanent magnets (magnetic necklaces, etc.), concentrations of metal (metal doors, 
lockers, etc.), and household appliances (TVs, personal computers, washing machines, freezers, etc.)

 Whenever you suspect that the watch may have become magnetized, perform the procedure under “To 

perform fi gure 8 calibration” (page E-70) or “To perform 3-point calibration” (page E-72).

E-77

2. During the 60 seconds that digital compass readings are being taken, press 

A

 to store the current 

reading in Bearing Memory.

 The Bearing Memory direction angle is displayed for about one second as it is stored in Bearing 

Memory. After that, the Bearing Memory screen (which shows the bearing memory direction angle 
and pointer) will appear, and a new 60-second direction reading operation will start.

 You can press 

D

 at any time while the Bearing Memory screen is displayed, to start a new 

60-second direction reading operation. Doing so will display the direction angle for the direction 
that the 12 o’clock position of the watch is pointed. The direction angle of the current reading will 
disappear from the display after the 60-second direction reading operation is complete.

 During the fi rst 60 seconds after you display the Bearing Memory screen or during a 60-second 

direction reading operation you triggered by pressing 

D

 while the Bearing Memory screen is on 

the display, the direction stored in memory is indicated by a Bearing Memory pointer.

 Pressing 

A

 while the Bearing Memory screen is displayed will clear the reading currently in 

Bearing Memory and start a new 60-second direction reading operation.

 

 Digital Compass Precautions
 Magnetic North and True North

The northerly direction can be expressed either as magnetic north or true 
north, which are different from each other. Also, it is important to keep in 
mind that magnetic north moves over time.

 Magnetic north is the north that is indicated by the needle of a 

compass.

 True north, which is the location of the North Pole of the Earth’s axis, is 

the north that is normally indicated on maps.

 The difference between magnetic north and true north is called the 

“declination”. The closer you get to the North Pole, the greater the 
declination angle.

True north

Magnetic north

Earth

E-76

 Using Bearing Memory

Bearing Memory lets you temporarily store and display a direction reading 
so you can use it as a reference as you take subsequent digital compass 
readings. The Bearing Memory screen displays the direction angle for the 
stored reading, along with a pointer that indicates the stored reading.
When you take digital compass readings while the Bearing Memory 
screen is displayed, the direction angle of the current digital compass 
reading (as read from the 12 o’clock position of the watch) and the stored 
Bearing Memory direction reading will both be shown.

To store a direction angle reading in Bearing Memory

1. Press 

D

 to start a digital compass reading operation (page E-64).

 This will take an initial reading and then take readings every 

second for 60 seconds.

 If a bearing memory direction angle value is already displayed, it 

means that there is a reading already stored in Bearing Memory. If 
this happens, press 

A

 to clear the Bearing Memory reading and 

exit the bearing memory screen before performing the above step.

llllllllll

Bearing memory 
direction angle 
value

Direction angle of 
current reading

Pointer to bearing 
in bearing memory

12 o’clock position

North pointer

Bearing Memory 

Screen

E-75

To perform magnetic declination correction

 Keep the watch level and don’t move it during the calibration process.

 For information about magnetic declination, see “Magnetic North and True North” (page E-77).

1. In the Digital Compass Mode, hold down 

A

 for at least two seconds. 

SET Hold

 will fl ash on the display and then 

CAL

 will appear. Keep 

A

 

depressed until 

CAL

 appears.

2. Press 

C

 twice.

 

DEC

 will appear on the display and then the current magnetic 

declination angle setting will fl ash on the display.

3. Use 

D

 (East) and 

L

 (West) to change the settings.

 The following explains magnetic declination angle direction 

settings.

OFF

: No magnetic declination correction performed. The magnetic 

declination angle with this setting is 0°.

E

When magnetic north is to the east (east declination)

W

When magnetic north is to the west (west declination)

 You can select a value within the range of W 90° to E 90° with 

these settings.

 You can turn off (

OFF

) magnetic declination correction by pressing 

D

 and 

L

 at the same time.

 The illustration, for example, shows the value you should input 

and the direction setting you should select when the map shows a 
magnetic declination of 1° West.

4. When the setting is the way you want, press 

A

 to exit the setting 

screen.

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Magnetic declination angle 
direction value (E, W, or OFF)

Magnetic declination 
angle value

E-74

4. Leaving the watch pointed upwards, rotate it as precisely as possible 

180 degrees from point 1.

5. Keeping the watch parallel to the ground, press 

D

 to calibrate Point 2.

 

WAIT

 is shown on the display while calibration is being performed.

 When calibration is successful, the words 

TURN

 and 

OVER

 will 

alternate on the display. After that, 

-3-

 will appear on the display.

 If calibration fails for some reason, return to step 2 of this 

procedure and try again.

6. Turn over the watch so its face is pointed at the ground.

 In this case, it makes no difference what direction the 12 o’clock 

position of the watch is pointed.

7. With the watch pointed downwards and parallel with the ground as 

shown in the illustration, press 

D

.

 This starts calibration of Point 3.

 

WAIT

 is shown on the display while calibration is being performed.

 If calibration is successful, the watch will beep once. Also, the 

watch will display 

OK

 and start taking a direction reading. This 

indicates that calibration is complete.

 If the watch beeps three times and displays 

ERR

, perform the 

procedure from step 3 again.

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ground

D

L

E-73

3. With the watch pointed upwards and parallel with the ground as shown 

in the illustration, press 

D

.

 

WAIT

 will be shown on the digital display while calibration of Point 

1 is in progress. 

Turn 180°

 will appear on the digital display if 

calibration is successful, and then   

-2-

 will appear.

 If calibration fails for some reason, return to step 2 of this 

procedure and try again.

ground

L

D

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E-72

 To perform 3-point calibration

Important!

 Proper declination correction will not be possible if the watch is on a 

metal surface or a magnetized surface.

 When setting Point 2, properly point the watch in the direction that 180° 

opposite that of Point 1.

 When setting Point 3, properly turn the watch over 180°.

1. In the Digital Compass Mode, hold down 

A

 for at least two seconds.

 

SET Hold

 will fl ash on the display and then 

CAL

 will appear. Keep 

A

 depressed until 

CAL

 appears.

2. Press 

C

.

 This will cause   

-1-

 

CAL

 to appear on the digital display, with an 

up arrow ( ) fl ashing.

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Operation Guide 3445

Summary of Contents for 3445

Page 1: ... To get ready for a receive operation page E 16 To set the time manually See Configuring Current Time and Date Settings Manually page E 32 The watch is now ready for use For details about the watch s radio controlled timekeeping feature see Radio Controlled Atomic Timekeeping page E 14 E 3 Things to check before using the watch 1 Check the battery power level Is H or M displayed for the battery pow...

Page 2: ...ns page E 125 E 11 Level Battery Power Indicator Function Status 4 CHG l ll l l l l l l l l l l l ll l Except for the current time and the CHG charge indicator all functions and display indicators disabled 5 All functions disabled The flashing LOW indicator at Level 3 L tells you that battery power is very low and that exposure to bright light for charging is required as soon as possible At Level 5...

Page 3: ...ect reception l ll l l l l l l l l l l l l l l l l ll E 19 If the current reception fails but a previous reception within the last 24 hours was successful the display shows the receive indicator and the ERR indicator If the ERR indicator only is displayed without the receive indicator it means that all of the receive operations over the past 24 hours have failed The watch will return to the Timeke...

Page 4: ...ic Dial The indication of the graphic dial is synced with the minutes and seconds of the current time and time measurements In the Timekeeping Mode and the World Time Mode segments appear in one second units After the 60th second segments disappear in one second units During diving log data display segments appear in one minute units After the 60th minute segments disappear in one minute units Whe...

Page 5: ...bearing for about 20 seconds while measuring water depth E 35 Using the Diving Functions Entering the Diving Mode and starting a dive causes the watch to create a log record and start measuring and recording dive time water depth and water temperature automatically After a dive is complete the watch also displays the surface time Important Charge the battery to at least Level 2 before using it for...

Page 6: ... 3 meters or greater is measured Water Depth and Water Pressure Underwater pressure increases along with the depth In the case of seawater Specific Gravity 1 025 water pressure increases one atmosphere 1 03kg cm2 with each 10 meter increase in depth The water depth sensor of your watch detects water pressure and the watch uses the relationship between water pressure and depth to display a seawater ...

Page 7: ...be operated while submerged L turns on illumination A displays water temperature D takes a direction reading and B registers a time stamp 10 What happens if I forgot to enter the Diving Mode before starting a dive If you enter the water and then enter the Diving Mode while under water at a depth of 1 5 meters or less the watch will not be able to perform 0 meter reset correctly which will cause a ...

Page 8: ...2 Use D to display the log record you want to delete Important Note that holding down A for more than five seconds in step 3 will delete all log records Once a record is deleted it cannot be recovered 3 Hold down A for about two seconds First CLEAR Hold will flash on the display After that CLEAR will stop flashing and remain display Release A as soon as CLEAR stops flashing Deleting a record displays ...

Page 9: ...clination correction You should perform calibration whenever direction readings produced by the watch do not match those of another reliable compass and before setting off on a dive Leave the watch on your wrist when performing figure 8 calibration When performing 3 point calibration remove the watch from your wrist l l l l l l l ll Desired bearing 12 o clock Bearing angle Diving Mode Screen E 67 U...

Page 10: ...s the direction angle for the stored reading along with a pointer that indicates the stored reading When you take digital compass readings while the Bearing Memory screen is displayed the direction angle of the current digital compass reading as read from the 12 o clock position of the watch and the stored Bearing Memory direction reading will both be shown To store a direction angle reading in Be...

Page 11: ... the display the display will change to show the countdown time hours To specify the countdown start time 1 Enter the Countdown Timer Mode If a countdown is in progress indicated by the seconds counting down press D to stop it and then press A to reset to the current countdown start time If a countdown is paused press A to reset to the current countdown start time 2 Hold down A for at least two se...

Page 12: ...ment reading will appear in the lower display The watch will continue to take temperature readings every second for 60 minutes The watch will return to the Timekeeping Mode after the reading operation is complete 60 minutes Press D to restart temperature readings Pressing C while a reading operation is in progress will stop the operation and enter the Tide Moon Mode Diving Diving Mode Pressing A w...

Page 13: ...e Moon Mode as shown on page E 26 This displays the Tide Screen which shows information in the following sequence After TIDE appears on the display the Tide Graph will display the tide level at 6 00 a m on the current day 2 Use D to specify the time you want Each press of D advances the time by one hour causing the Tide Graph to change accordingly Holding down D scrolls the time at high speed If y...

Page 14: ...ounding While a compass reading operation is in progress While calibrating in the Digital Compass Mode While a receive operation is in progress in the Receive Mode While measuring Tide Moon values While in a sensor mode an auto light switch operation is performed after a sensor reading To enable or disable the auto light switch In the Timekeeping Mode hold down L for at least three seconds to togg...

Page 15: ...to be reflected in temperature readings by the watch E 115 While performing 3 point calibration the watch returns to standby for calibration of Point 1 The calibration procedure needs to be restarted because an error occurred during calibration or for some other reason Perform calibration of Point 1 again ERR appears after 3 point calibration is complete If ERR appears it could mean there is someth...

Page 16: ...as one is successful Manual receive Receive Mode Receivable Time Calibration Signals Mainflingen Germany Call Sign DCF77 Frequency 77 5 kHz Anthorn England Call Sign MSF Frequency 60 0 kHz Fort Collins Colorado the United States Call Sign WWVB Frequency 60 0 kHz Fukushima Japan Call Sign JJY Frequency 40 0 kHz Fukuoka Saga Japan Call Sign JJY Frequency 60 0 kHz Shangqiu City Henan Province China Ca...

Page 17: ...determined by each individual country L 2 City Code Table City Code City UTC Offset GMT Differential 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 YHZ Halifax 4 YYT St Johns 3 5 SCL Santiago 3 RIO Rio De Janeiro FEN Fernando de Noronha 2 RAI Praia 1 City Code City UTC Offset GMT Differential U...

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