Casio 3172 Configuring Current Time and Date Settings Manually, Digital Compass, Digital Compass Readings, Calibrating the Bearing Sensor, OFF, DST, OFF, 12H, 24H, OFF

Operation Guide 3172

To change the Daylight Saving Time (summer time) setting

DST indicator	1. In the Timekeeping Mode, hold down E until the currently selected
	city code starts to flash. This is the city code setting screen.

•Before the city code starts to flash, the message SET Hold

will appear on the display. Keep E depressed until SET Hold disappears and the city code starts to flash.

2. Press D to display the DST setting screen.

3. Use A to cycle through the DST settings in the sequence shown below.

Auto DST (AUTO) DST off (OFF) DST on (On)

•The Auto DST (AUTO) setting will be available only when a city code that supports time calibration signal reception is selected as the Home City. While Auto DST is selected the DST setting will be changed automatically in accordance with time calibration signal data.

4.After all the settings are the way you want, press E twice to return to the Timekeeping Mode.

•The DST indicator appears to indicate that Daylight Saving Time is turned on.

Configuring Current Time and Date Settings Manually

You can configure current time and date settings manually when the watch is unable to receive a time calibration signal.

To change the current time and date settings manually

PM	City	Month	1. In the Timekeeping Mode, hold down E until the currently selected
			city code starts to flash. This is the city code setting screen.
indicator	code	Day
			• Before the city code starts to flash, the message SET Hold
			will appear on the display. Keep E depressed until SET Hold
			disappears and the city code starts to flash.
			2. Use A and C to select the city code you want.
			• Select your Home City code before changing any other setting.
			• For full information on city codes, see the “City Code Table”.

Hour : Minutes Seconds

3. Press D to move the flashing in the sequence shown below to select the other settings.

City Code	DST	12/24-Hour		Seconds		Hour	Minutes		Year
		Format
Thermometer/Barometer/		Power	Illumination		Button Operation			Day	Month
Altitude unit		Saving	Duration		Tone On/Off

•The following steps explain how to configure timekeeping settings only.

4.When the timekeeping setting you want to change is flashing, use A and/or C to change it as described below.

Screen	To do this:	Do this:
	Change the city code	Use A (East) and C (West).
	Cycle between Auto DST (AUTO), Daylight Saving	Press A.

Digital Compass Readings

•When you press C to start digital compass measurement, COMP will appear on the display initially to indicate that a digital compass operation is in progress.

•About two seconds after you start a digital compass measurement operation, letters on the display will indicate the direction that the 12 o’clock position of the watch is pointing. Four pointers that indicate magnetic north, south, east, and west also will appear.

•After the first reading is obtained, the watch will continue to take digital compass readings automatically each second for up to 20 seconds. After that, measurement will stop automatically.

•The direction indicator and angle value will show - - - to indicate that digital compass readings are complete.

•The auto light switch is disabled during the 20 seconds that digital compass readings are being taken.

•The following table shows the meanings of each of the direction abbreviations that appear on the display.

Direction	Meaning	Direction	Meaning	Direction	Meaning	Direction	Meaning
N	North	NNE	North-	NE	Northeast	ENE	East-
			northeast				northeast
E	East	ESE	East-	SE	Southeast	SSE	South-
			southeast				southeast
S	South	SSW	South-	SW	Southwest	WSW	West-
			southwest				southwest
W	West	WNW	West-	NW	Northwest	NNW	North-
			northwest				northwest

•The margin of error for the angle value and the direction indicator is ±11 degrees while the watch is horizontal (in relation to the horizon). If the indicated direction is northwest (NW) and 315 degrees, for example, the actual direction can be anywhere from 304 to 326 degrees.

•Note that taking a measurement while the watch is not horizontal (in relation to the horizon) can result in large measurement error.

•You can calibrate the bearing sensor if you suspect the direction reading is incorrect.

•Any ongoing direction measurement operation is paused temporarily while the watch is performing an

alert operation (daily alarm, Hourly Time Signal, countdown timer alarm) or while illumination is turned on (by pressing L). The measurement operation resumes for its remaining duration after the operation that caused it to pause is finished.

•See “Digital Compass Precautions” for important information about taking direction readings.

Calibrating the Bearing Sensor

You should calibrate the bearing sensor whenever you feel that the direction readings being produced by the watch are off. There are three different calibration methods available: magnetic declination correction, bidirectional calibration, and northerly calibration.

•Magnetic Declination Correction

With magnetic declination correction, you input a magnetic declination angle (difference between magnetic north and true north), which allows the watch to indicate true north. You can perform this procedure when the magnetic declination angle is indicated on the map you are using. Note that you can input the declination angle in whole degree units only, so you may need to round off the value specified on the map. If your map indicates the declination angle as 7.4°, you should input 7°. In the case of 7.6° input 8°, for 7.5° you can input 7° or 8°.

•Bidirectional Calibration and Northerly Calibration

Bidirectional calibration and northerly calibration calibrate the accuracy of the bearing sensor in relation to magnetic north. Use bidirectional calibration when you want to take readings within an area exposed to magnetic force. This type of calibration should be used if the watch becomes magnetized for any reason. With northerly calibration, you “teach” the watch which way is north (which you have to determine with another compass or some other means).

Important!

The more correctly you perform bidirectional calibration, the better the accuracy of the bearing sensor readouts. You should perform bidirectional calibration whenever you change environments where you use the bearing sensor, and whenever you feel that the bearing sensor is producing incorrect readings.

To perform magnetic declination correction

	Time (On) and Standard Time (OFF).
	Toggle between 12-hour (12H) and 24-hour (24H)	Press A.
	timekeeping.
50	Reset the seconds to 00	Press A.
	Change the hour or minutes
		Use A (+) and C (–).
	Change the year, month, or day

5.Press E twice to exit the setting screen.

Note

•For information about selecting a Home City and configuring the DST setting, see “Configuring Home City Settings”.

•While 12-hour format is selected for timekeeping, a P (PM) indicator will appear for times from noon to 11:59 p.m. No indicator appears for times from midnight to 11:59 a.m. With 24-hour format, time is displayed from 0:00 to 23:59, without any P (PM) indicator.

•The watch’s built-in full automatic calendar makes allowances for different month lengths and leap years. Once you set the date, there should be no reason to change it except after you have the watch’s rechargeable battery replaced or after power drops to Level 5.

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

Magnetic declination angle value

1.In the Digital Compass Mode, hold down E until the current magnetic declination settings start to flash on the display. This is the setting screen.

•Before the magnetic declination settings start to flash, the message SET Hold will appear on the display. Keep E depressed until SET Hold disappears and the magnetic declination settings start to flash.

2.Use A (East) and C (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 A and C 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.

3.When the setting is the way you want, press E to exit the setting screen.

Digital Compass

In the Digital Compass Mode, a built-in bearing sensor detects magnetic north at regular intervals and indicates one of 16 directions on the display.

Precautions about bidirectional calibration

• You can use any two opposing directions for bidirectional calibration. You must, however, make sure

that they are 180 degrees opposite each other. Remember that if you perform the procedure

incorrectly, you will get wrong bearing sensor readings.

• Do not move the watch while calibration of either direction is in progress.

• You should perform bidirectional calibration in an environment that is the same as that where you plan

Direction 12 o’clock

indicator position North pointer

Current time

Angle value (in degrees)

270	WNW	NW	NNW	0
W				N
WSW				NNE
SW				NE
SSW				ENE
S				E
180	SSE	SE	ESE	90

To take a digital compass reading

1.Make sure the watch is in the Timekeeping Mode or any one of the sensor modes.

•The sensor modes are: Digital Compass Mode, Barometer/ Thermometer Mode, and Altimeter Mode.

2.Place the watch on a flat surface. If you are wearing the watch, make sure that your wrist is horizontal (in relation to the horizon).

3.Point the 12 o’clock position of the watch in the direction you want to measure.

4.Press C to start digital compass measurement.

•COMP will appear on the display to indicate that a digital compass operation is in progress.

•See “Digital Compass Readings” for information about what appears on the display.

Note

•If a value appears to the right of the direction indicator, it means

that the bearing memory screen is displayed. If this happens, press E to exit the bearing memory screen.

5.After you are finished using the digital compass, press D to return to the Timekeeping Mode.

to be taking direction readings. If you plan to take direction readings in an open field, for example,

calibrate in an open field.

To perform bidirectional calibration

		l l	1. In the Digital Compass Mode, hold down E until the current magnetic
	l		declination settings start to flash on the display. This is the setting
		l
	l	l	screen.
l		l
l		l	• Before the magnetic declination settings start to flash, the
l
l		l
	ll l		message SET Hold will appear on the display. Keep E depressed

until SET Hold disappears and the magnetic declination settings start to flash.

2. Press D to display the bidirectional calibration screen.

• At this time, the north pointer flashes at the 12 o’clock position and the display will show -1-to indicate that the watch is ready to calibrate the first direction.

3. Place the watch on a level surface facing any direction you want, and press C to calibrate the first direction.

• - - - is shown on the display while calibration is being performed. When calibration is successful, the display will show OK and -2-, and the north pointer flashing at the 6 o’clock position. This means that the watch is ready for calibration of the second direction.

4. Rotate the watch 180 degrees.

5. Press C again to calibrate the second direction.

• - - - is shown on the display while calibration is being performed. When calibration is successful, the display will show OK and then change to the Digital Compass Mode screen (- - -).

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