Casio 1570 Owner's Manual

Module No. 1570

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GENERAL GUIDE

• Press C to change from mode to mode.

• Hold down C for one or two seconds in any mode to switch back to the

Timekeeping Mode.

Timekeeping Mode

Sensor

(Timekeeping)

(Light)

Alarm Mode

Press D.

▲

(Barometric Pressure/

Temperature)

hPa mb

˚C

Trekking Counter Mode

▼

STEP

▲

Altimeter Mode

▲

Recall Mode

˚C

▲

World Time Mode

▼

BACKLIGHT

Auto light switch on indicator

A-LIGHT

• The illumination provided by the backlight may be hard to see when viewed under direct sunlight.

• The watch will emit an audible sound whenever the display is illuminated. This is caused by a transformer that vibrates when the EL panel lights up. It does not indicate malfunction of the watch.

• The backlight automatically turns off whenever an alarm sounds.

To manually turn on the backlight

In any mode, press L to illuminate the display for about two seconds.

• The above operation turns on the backlight regardless of the current auto light switch setting.

About the Auto Light Switch

Turning on the auto light switch causes the backlight to turn on whenever you position your wrist as described below.

• Avoid wearing the watch on the inside of your wrist. Doing so causes the auto light switch to operate when it is not needed, which shortens battery life.

The backlight uses an EL (electro-luminescent) panel that causes the entire display to glow for easy reading in the dark. The watch’s auto light

switch automatically turns on the backlight when you angle the watch towards your face.

• The auto light switch must be turned on (indicated by the auto light switch on indicator) for it to operate.

Note

• The electro-luminescent panel loses illuminating power after very long use.

Moving the watch to a position that is parallel to the ground and then tilting it towards you more than 40 degrees causes the backlight to light.

Parallel to ground

• The backlight turns off in about two seconds, even if you keep the watch pointed towards your face.

• The backlight may not light if the face of the watch is more than 15 degrees off the parallel as shown below. Make sure that the back of your hand is parallel to the ground.

Parallel to ground

• Static electricity or magnetic force can interfere with proper operation of the auto light switch. If the backlight does not light, try moving the watch back to the starting position (parallel with the ground) and then tilt it back toward you again. If this does not work, drop your arm all the way down so it hangs at your side, and then bring it back up again.

• Under certain conditions the backlight may not light until about one second or less after turn the face of the watch towards you. This does not necessarily indicate malfunction of the backlight.

More than 15 degrees too high

More than 15 degrees too low

More than 40°

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To turn the auto light switch on and off

In the Timekeeping Mode, hold down D for one second to turn the auto light switch on (A-LIGHT

• In order to protect against running down the battery, the auto light switch is automatically turned off approximately two or three hours after you turn it on. Repeat the above procedure to turn the auto light switch back on if you want.

• The

mark next to A-LIGHT is on the display in all modes while the auto

light switch is turned on.

Warning!

• Never try to read your watch when mountain climbing or hiking in areas that are dark or in areas with poor footing. Doing so is dangerous and can result in serious personal injury.

• Never try to read your watch when running where there is danger of accidents, especially in locations where there might be vehicular or pedestrian traffic. Doing so is dangerous and can result in serious personal injury.

• Never try to read your watch when riding on a bicycle or when operating a motorcycle or any other motor vehicle. Doing so is dangerous and can result in a traffic accident and serious personal injury.

• When you are wearing the watch, make sure that its auto light switch is turned off before riding on a bicycle or operating a motorcycle or any other motor vehicle. Sudden and unintended operation of the auto light switch can create a distraction, which can result in a traffic accident and serious personal injury.

) and off (A-LIGHT).

CHANGING THE MEASUREMENT UNITS

You can change the measured values displayed by the watch between the following units. Altitude: meters (m) Temperatures: Celsius (°C) Barometric Pressure: hecto-pascals/millibars (hPa/mb)

Some countries call this unit hecto-pascal (hPa), while other countries call it

millibars (mb). It really makes no difference, because 1 hPa = 1 mb. In this manual, we will refer to hPa/mb or hPa (mb).

Important!

• Certain measurement functions are automatically terminated when you change the measurement units. Be sure that you perform this operation before starting actual measurements.

• Changing the altitude unit of measurement automatically switches the altitude alarm off.

• Changing the barometric pressure unit of measurement automatically restarts the barometric pressure graph from a new value.

• Changing any of the units of measurement immediately starts to display newly measured data in the unit you specify. It also affects the unit of measurement for any data already stored in memory.

To change the measurement units

↔ feet (ft)

↔ Fahrenheit (°F)

↔ inchesHg (inHg)

1. In the Timekeeping Mode, press D until

hPa mb

˚C

the Barometric Pressure/Temperature screen appears.

2. Hold down A until temperature value) appears flashing in the display. The data on the display is flashing because it is

3. Press C to change the selection in the following sequence.

selected

OFF (or the

TIMEKEEPING FUNCTION

In addition to time and date settings, the

Day of week

Year

Month – Day

PM indicator

Seconds

Hour : Minutes

• At this time, the city code currently set for the Timekeeping Mode appears in the upper part of the display in place of the day of the week.

3. Press C to change the selection in the following sequence.

Seconds City Code

CNT

• See “Adjusting the display contrast” for details on using the CNT (contrast) setting.

4. While the seconds digits are selected (flashing), press D to reset the

seconds to

• If you press D while the seconds count is in the range of 30 to 59, the seconds are reset to count is in the range of 00 to 29, the minutes count is unchanged.

• With the 12-hour format, the P (PM) indicator appears to the left of the hour digits for times in the range of noon to 11:59 pm and the A (AM) indicator appears to the left of the hour digits for times in the range of midnight to 11:59 am.

• The 24-hour format is indicated by 24 on the display. Times are shown in the range of 00:00 to 23:59.

5. Press C until the city code is flashing on the display.

6. Use B and D to scroll through the city codes until you find the one you

want to set as your home city.

• D scrolls forward, while B scrolls back through the city codes. Holding down either button scrolls through the city codes at high speed.

• See the “CITY CODE TABLE” for a complete list of available codes.

7. Press C until the hour digits are flashing on display.

8. Press D to increase the setting or B to decrease it. Holding down either

button changes the setting at high speed.

9. Repeat steps 7 and 8 to set the minutes, year, month, and day.

10.After you make the settings you want, press A to return to the

Timekeeping Mode (Timekeeping screen).

• The day of the week is automatically set in accordance with the date.

• The date can be set within the range of January 1, 1995 to December 31,

2039.

• Changing the Timekeeping Mode’s city code also causes the time to change to the current time in time zone where the city is located.

• If you do not operate any button for a few minutes while a selection is flashing, the flashing stops and the watch goes back to the Timekeeping Mode automatically.

• Holding down B while in the Timekeeping Mode (Timekeeping screen) displays the currently selected city code in place of the day of the week.

00 and L to toggle between the 12-hour and 24-hour formats.

Timekeeping Mode also lets you adjust the contrast of the display. Timekeeping Mode time is linked with World Time Mode time, so be sure to select the city code for your current

location before setting the time in the Timekeeping Mode.

Setting the city code, time, and date

1. In the Timekeeping Mode, press D until the Timekeeping screen appears.

2. Hold down A until the seconds digits starts to flash on the display. The seconds digits flash because they are

Hour Minutes

Day

Month

00 and 1 is added to the minutes. If the seconds

selected

Year

Temperature Calibration Barometric Pressure Calibration

Switching between standard time and daylight saving time

m/ft

˚C

hPa mb

hPa(mb)/inHg

4. Use C to select the unit (°C/°F, hPa(mb)/inHg or m/ft) you want.

5. Press B or D to select the currently selected unit.

6. After making your selection, press A to return to the Timekeeping Mode (Pressure/ Temperature screen).

°C/°F

Daylight Saving Time (DST), which is also sometimes called “summer time,” advances the time one hour, as is the custom in some areas during the summer.

1. In the Timekeeping Mode, press D until

the Timekeeping screen appears.

2. Hold down A until the seconds digits starts to flash on the display. The seconds digits flash because they are

3. Press C until the city code is flashing on the display.

4. Press L to toggle Daylight Saving Time on (DST displayed) and off (DST not displayed).

selected

DST

DST indicator

5. After you make the settings you want, press A to return to the Timekeeping Mode (Timekeeping screen).

• The DST indicator appears on the display to indicate that daylight saving

time is turned on.

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Adjusting the display contrast

Graphic area

4. Pressing D makes the images on the display darker, while B makes them lighter.

• Display contrast can be adjusted to one of six levels. Two dots in the

graphic area indicate the lightest contrast setting (Level 1), while 12 dots indicates the darkest setting (Level 6).

5. After you make the settings you want, press A to return to the Timekeeping Mode (Timekeeping screen).

1. In the Timekeeping Mode, press D until the Timekeeping screen appears.

2. Hold down A until the seconds digits starts

to flash on the display. The seconds digits flash because they are

• At this time, dots appear in the graphic area

of the display to indicate the current contrast setting. Every two dots represent one contrast level.

3. Press C seven times until the indicator appears on the display.

selected

CNT

BAROMETER FUNCTIONS

This watch uses a pressure sensor to measure air pressure. This sensor can be calibrated.

Important!

The barometer that is built into this watch measures changes in air pressure, which you can then apply to your own weather predictions. It is not intended for use as a precision instrument in official weather prediction or reporting applications.

Example barometer applications

• Before going mountain climbing, you can take readings to find out the probable upcoming weather.

• You can predict the weather for golf or other outdoor activities.

About barometric measurements

The barometer automatically takes measurements every two hours (starting from midnight), regardless of what mode you are in. Barometric pressure measurements are also taken every five seconds for three minutes after you display the Timekeeping Mode’s Barometric pressure/Temperature screen. The last measurement result, along with the current temperature is displayed in the Barometric pressure/Temperature screen.

Understanding the barometer screen

1. Use C to enter the Timekeeping Mode.

2. Press D to display the Barometric Pressure/Temperature screen.

• If you do not press any button for 10 or 11 hours, the watch automatically returns to the Timekeeping screen.

Temperature

˚C

(Barometric Pressure/Temperature)

1 The barometric pressure graph shows the barometric readings for the

past 26 hours. The flashing point on the right of the display is the point for the last measurement.

2 The display shows “– – – – hPa/mb” (or inHg) if a measured value falls

outside the range of 460 hPa/mb to 1100 hPa/mb (13.55 inHg to 32.45 inHg). The normal display will return as soon as the pressure returns within the allowable range.

Using the barometric pressure graph

Changes in barometric pressure are caused by changes in the weather and temperature. The following shows how to interpret the data that appears on the barometric pressure graph.

Barometric pressure graph

(Unit: 1 hPa(mb)/0.05 inHg)

hPa mb

Last measurement (updated every 2 hours)

A rising graph generally means better weather.

Note that if there are sudden changes in weather or temperature, the graph line of past measurements may run off the top or bottom of the display. The entire graph will become visible once barometric conditions stabilize.

The following conditions cause the barometric pressure measurement to be skipped, with the corresponding point on the barometric pressure graph being left blank.

• Barometric reading that is out of range (460 hPa/mb to 1100 hPa/mb or

13.55 inHg to 32.45 inHg)

• Sensor malfunction

• Dead battery

Not visible on display

Calibrating the barometric pressure measurement

The sensor of this watch is calibrated at the factory before shipment and further adjustment is normally not required. If noticeable error is found in the barometric pressure readings produced by the watch, you can adjust it to correct the error.

Important!

Incorrectly calibrating the barometric pressure measurement of this watch can result in incorrect readings. Compare the readings produced by the watch with those of another reliable accurate barometer.

To calibrate the barometric pressure

1. In the Timekeeping Mode, use D to

˚C

• The

OFF indicator appears when the factory setting is being used for the

calibration.

4. Each press of D increases the displayed barometric pressure by 1 hPa/mb, while pressing B decreases it. Holding down either button changes the value at high speed.

• If you have selected inHg as your unit of measurement, the above

operations change the reading by 0.05 inHg.

• Pressing B and D at the same time returns to the

5. After calibrating the barometric pressure, press A to return to the Barometric Pressure/Temperature screen.

• If you do not operate any button for a few minutes while the barometric

pressure digits are flashing, the flashing stops and the watch goes back to the Barometric Pressure/Temperature screen.

A built-in temperature sensor measures temperature and shows the measured value on the display. The thermometer can be calibrated.

Important!

Temperature measurements are affected by your body temperature (while you are wearing the watch), direct sunlight, and moisture. To achieve a more accurate temperature measurement, remove the watch from your wrist, place it in a well ventilated location out of direct sunlight, and wipe off all moisture from the case. It takes approximately 20 to 30 minutes for the case of the watch to reach the actual surrounding temperature.

hPa mb

THERMOMETER FUNCTIONS

display the barometric pressure and temperature.

2. Hold down A until the display clears. or the temperature value should be flashing on the display.

3. Press C to show the barometric pressure calibration display. At this time, barometric pressure value should be flashing on the display.

OFF

OFF or the

OFF display.

About temperature measurements

Temperature measurements are taken automatically every five minutes, regardless of what mode the watch is in. Measured temperature values can be viewed in the Timekeeping or Altimeter Mode. Temperature measurements are taken every five seconds for the first three minutes after you display the Timekeeping Mode’s Barometric Pressure/Temperature screen, or after you enter the Altimeter Mode. After that, temperature measurements are taken every five minutes.

• Temperature measurement data can be recalled along with altitude measurement data.

A falling graph generally means deteriorating weather.

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