Casio MO1203-ED User Manual

MO1203-ED

Operation Guide 3148

Getting Acquainted

Congratulations upon your selection of this CASIO watch. To get the most out of your purchase, be sure to read this manual carefully.

Applications

The built-in sensors of this watch measure barometric pressure, temperature and altitude. Measured values are then shown on the display. Such features make this watch useful when hiking, mountain climbing, or when engaging in other such outdoor activities.

Keep the watch exposed to bright light

Bright light

• The watch continues to operate, even when it is not exposed to light. Leaving the watch in the dark can cause the battery to run down, which will cause some watch functions to be disabled. If the battery goes dead, you will have to re-configure watch settings after recharging. To ensure normal watch operation, be sure to keep it exposed to light as much as possible.

Battery charges in the light. Battery discharges in the dark.

Solar cell (Converts light to electrical power.)

Solar cell

Charge

Rechargeable battery

Bright light

The electricity generated by the solar cell of the watch is stored by a built-in battery. Leaving or using the watch where it is not exposed to light

causes the battery to run down. Make sure the watch is exposed to light as much as possible.

• When you are not wearing the watch on your wrist, position the face so it is pointed at a source of bright light.

• You should try to keep the watch outside of your sleeve as much as possible. Charging is reduced significantly if the face is covered only partially.

Electrical energy

All

LEVEL 1

functions

LEVEL 2

enabled

LEVEL 3

LEVEL 4

charge

Dis-

LEVEL 1

LEVEL 2

LEVEL 3

LEVEL 4

Some functions disabled

• The actual level at which some functions are disabled depends on the watch model.

• Frequent display illumination can run down the battery quickly and require charging. The following guidelines give an idea of the charging time required to recover from a single illumination operation.

Approximately five minutes exposure to bright sunlight coming in through a window

Approximately 50 minutes exposure to indoor fluorescent lighting

• Be sure to read “Power Supply” for important information you need to know when exposing the watch to bright light.

If the display of the watch is blank...

If the display of the watch is blank, it means that the watch’s Power Saving function has turned off the display to conserve power.

• See “Power Saving” for more information.

• The measurement functions built into this watch are not intended for

taking measurements that require professional or industrial precision. Values produced by this watch should be considered as reasonable representations only.

• CASIO COMPUTER CO., LTD. assumes no responsibility for any loss,

or any claims by third parties that may arise through the use of this watch.

Warning!

About This Manual

(Light)

• Button operations are indicated using the letters shown in the illustration.

• Each section of this manual provides you with the information you need to

perform operations in each mode. Further details and technical information can be found in the “Reference” section.

(Light)

General Guide

• The illustration below shows which buttons you need to press to navigate between modes.

• In any mode, press L to illuminate the display.

World Time Mode

▲

Stopwatch Mode

Barometer/

Thermometer Mode

Countdown Timer Mode

▲

Press D.

Alarm Mode

▲

Timekeeping

Use the Timekeeping Mode to set and view the current time and date.

• In the Timekeeping Mode, you can use the buttons shown in the illustration to display the timekeeping display you want.

• Pressing the B button once will display the current time in the city you last viewed in the World Time Mode.

• Holding down the B button for about five seconds will swap the World Time City and your current Home Time City.

• To swap the cities back again, hold down the B button for about five seconds again.

You can press the C button to go directly from the Timekeeping Mode to the

•

Altimeter Mode. To go to the Altimeter Mode from the Barometer/ Thermometer, World Time, Stopwatch, Countdown Timer, Alarm, or Data Recall Mode, first enter the Timekeeping Mode and then press the

Timekeeping Mode

Press C.

Altimeter Mode

▲

button.

▲

Data Recall Mode

Press D.

▲

TYO Time

Day of week

City you last viewed in the World Time Mode

▲

Time in city you last viewed in the World Time Mode

▲

TYO Time

Time in city you last viewed in the World Time Mode

Minutes

TYO Time

Release B.

SecondsHour :

▲

Hold down B for five seconds.

Release B.

▲

Time in city you last viewed in the World Time Mode

Hold down B for

▲

five seconds.

UTC Time

▲

Operation Guide 3148

Read This Before You Set the Time and Date!

This watch is preset with a number of city codes, each of which represents the time zone where that city is located. When setting the time, it is important that you first select the correct city code for your Home City (the city where you normally use the watch). If your location is not included in the preset city codes, select the preset city code that is in the same time zone as your location.

• Note that all of the times for the World Time Mode city codes are displayed in accordance with the time and date settings you configure in the Timekeeping Mode.

To set the time and date

1. In the Timekeeping Mode, hold down A until the city code starts to flash,

which indicates the setting screen.

2. Use E and B to select the city code you want.

• Make sure you select your Home City code before changing any other setting.

• For full information on city codes, see the “City Code Table”.

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

other settings.

City Code

Barometric Pressure Unit

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

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

Screen

5. Press A to exit the setting screen.

Note

• You also need to enter the Timekeeping Mode in order to configure the

following settings.

Power saving on/off (“To turn Power Saving on and off”) Temperature, barometric pressure, and altitude units (“To select the temperature, barometric pressure, and altitude units”)

Daylight Saving Time (DST)

Daylight Saving Time (summer time) advances the time setting by one hour from Standard Time. Remember that not all countries or even local areas use Daylight Saving Time.

12/24-Hour

DST

Format

Altitude Unit

To do this:

Change the city code

Toggle between Daylight Saving

ON) and Standard Time

Time ( (OFF).

Toggle between 12-hour ( and 24-hour (

Reset the seconds to

Change the hour or minutes

Change the year, month, or day

Temperature Unit

) timekeeping.

24H

Seconds

12H

Minutes

Hour

Powe r Saving

Do this:

Use E (east) and B(west).

Press E.

)

Press E.

Use E (+) and B (–).

Day

Year

Month

To change the Daylight Saving Time (summer time) setting

DST indicator

4. When the setting you want is selected, press A to exit the setting screen.

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

1. In the Timekeeping Mode, hold down A until

the city code starts to flash, which indicates the setting screen.

2. Press D and the DST setting screen appears.

3. Use E to cycle through the DST settings in

the sequence shown below.

DST off (

OFF

) DST on (ON)

Altimeter

The watch’s altimeter uses a pressure sensor to detect current air pressure, which is then used to estimate the current altitude based on ISA (International Standard Atmosphere) preset values. You can specify a reference altitude, which the watch will use to calculate your current altitude based on the value you specify. Altimeter functions also include storage of measurement readings in memory.

Important!

• This watch estimates altitude based on air pressure. This means that

altitude readings for the same location may vary if air pressure changes.

• The semiconductor pressure sensor used by the watch for altitude readings

is also affected by temperature. When taking altitude readings, make sure the watch is not subjected to temperature changes.

• To avoid the effect of sudden temperature changes during readings, keep the watch on your wrist in direct contact with your skin.

• Do not rely upon this watch for altitude readings or perform button operations while sky diving, hang gliding, or paragliding, while riding a gyrocopter, glider, or any other aircraft, or while engaging in any other activity where there is the chance of sudden altitude changes.

• Do not use this watch for taking altitude readings in applications that demand professional or industrial level precision.

• Remember that the air inside of a commercial aircraft is pressurized. Because of this, the readings produced by this watch will not match the altitude readings announced or indicated the flight crew.

How the Altimeter Measures Altitude

The altimeter can measure altitude based on its own preset values, or a reference altitude specified by you.

When you measure altitude based on preset values

Data produced by the watch’s barometric pressure sensor is converted to approximate altitude based on ISA (International Standard Atmosphere) conversion values stored in watch memory.

When you measure altitude using a reference altitude specified by you

After you specify a reference altitude, the watch will use that value to convert the current barometric pressure reading to altitude.

• When mountain climbing, you can specify a reference value in accordance with a marker along the way or altitude information from a map. After that, altitude readings produced by the watch will be more accurate than they would without a reference altitude.

Displaying Your Current Altitude

You can use the procedure described in this section to display your current altitude. If you leave the watch in the Altimeter Mode, it will update the displayed altitude value regularly, and indicate reading-to-reading changes in a window in the upper left of the display. You can select either of the following two altitude measurement intervals.

0'05": Readings at five-second intervals for one hour 2'00": Readings at five-second intervals for the first three minutes followed

by two-minute intervals for 10 hours

• For information about configuring settings for the altitude reading interval and duration, see “To specify the altitude reading interval”.

Important!

• The procedure below simply displays a value indicating your current altitude, without recording it in watch memory. For information about recording altitude readings in watch memory, see “Saving Altitude Readings in Memory”.

400

To view your current altitude

Altitude change since Altimeter Mode stopwatch measurement started

Altitude graph

Current altitude

Altimeter Mode stopwatch elapsed time

Notes

• Normally, displayed altitude values are based on the watch’s preset conversion values. You also can specify a reference altitude, if you want. See “Specifying a Reference Altitude”.

• Altitude is displayed in units of 5 meters (20 feet).

• The measurement range for altitude is –700 to 10,000 meters ( –2,300 to

32,800 feet).

• An altitude reading may be displayed be a negative value in cases where there is a reference altitude value specified or because of certain atmospheric conditions.

• The displayed altitude value changes to altitude reading falls outside the measurement range. The altitude value will be displayed again as soon as the altitude reading is within the allowable range.

• You can select either meters (m) or feet (ft) as the measurement unit for displayed altitude value.

• During altitude measurements, the watch may not be able to update its timekeeping display contents normally. Correct timekeeping is maintained internally, however.

1. In the Timekeeping Mode, use the C button

to enter the Altimeter Mode.

• The watch will start altitude measurement and display the result.

• It can take up to four or five seconds for the first altitude reading to appear.

2. If you leave the watch in the Altimeter Mode, the current altitude value and the altitude change value will be updated according to the altitude reading interval.

•

If you want to restart the operation at any point, press C.

3. To stop taking altitude readings, press D to exit the Altimeter Mode.

xxxx meters (or feet) if an

Operation Guide 3148

Altitude graph Altitude change indicator

• In the Altimeter Mode, press the A button to toggle between the altitude

graph and the altitude change indicator. The altitude change indicator shows the relative change between the latest altitude reading and the one before it.

• Nothing is displayed for the altitude change indicator when the current altitude reading is outside the watch’s altitude measurement range (–700 to 10,000 meters/–2300 to 32,800 feet).

Altitude change indicator

▲

More than +20m

+15m

+10m

+5m

±0m

–5m

–10m

–15m

Less than –20m

To specify the altitude reading interval

1. In the Altimeter Mode, hold down A for about

Altitude measurement interval

Saving Altitude Readings in Memory

The following describes the different types of records the watch creates for altitude readings.

• You can take manual altitude readings, which are stored in memory along with the date (year, month, day) of the reading. There is enough memory to hold up to 20 altitude records (readings).

• The Altimeter Mode has a stopwatch (which is independent of the watch’s Stopwatch Mode) that you can use to time your climbs. While the Altimeter Mode stopwatch is running, the watch takes altitude readings automatically (without storing them in memory). Each time you reset the Altimeter Mode stopwatch to all zeros, the highest altitude, lowest altitude, cumulative ascent, and cumulative descent achieved during the last Altimeter Mode stopwatch session are stored in a “current stopwatch session record”.

• A separate “historical record” keeps track of the highest altitude, lowest altitude, cumulative ascent, and cumulative descend of all past Altimeter Mode stopwatch sessions.

two seconds until either OFF or the current reference altitude value starts to flash. This is the setting screen.

2. Press D to display the current altitude

reading interval setting.

• This will cause either 0'05" or 2'00" to flash on the display.

3. Press E to toggle the setting between 0'05"

and 2'00".

• 0'05": Readings at five-second intervals for

one hour

• 2'00": Readings at five-second intervals for

the first three minutes followed by

4. Press A to exit the setting screen.

two-minute intervals for 10 hours

To take a manual altitude reading

1. Press C to enter the Altimeter Mode.

2. Hold down C for about one second until REC flashes on the display.

• At this time the watch will beep and the current altitude reading will be saved along with the current date (year, month, day) and time.

3. REC will stop flashing and the watch will return to the Altimeter Mode automatically after data save is complete.

• Memory can hold up to 20 altitude records. Storing a new reading while

there already are 20 in memory will delete the oldest record to make room for the new reading.

To take altitude readings using the Altimeter Mode stopwatch

1. In the Timekeeping Mode, use the C button to enter the Altimeter Mode.

• The watch will start altitude measurement automatically. Note that

readings are not saved as altitude records.

2. Press the E button to start the Altimeter Mode stopwatch.

• While an Altimeter Mode stopwatch operation is in progress, the display

shows the elapsed time, current altitude, and the change in altitude since the start of the stopwatch operation.

3. After you are finished using the Altimeter Mode Stopwatch, reset it to all zeros.

• While an Altimeter Mode stopwatch operation is in progress, you can toggle

between the altitude graph and the altitude change indicator by pressing the A button. The altitude change indicator graphically shows how the current altitude reading differs from the previous reading. The type of indicator that appears depends on the relative size of the altitude change.

Current Stopwatch Session Record

The current stopwatch session record contains the data described below. The contents of this record are retained until you start a new Altimeter Mode stopwatch measurement session.

Data

High Altitude (MAX)

Low Altitude (MIN)

Total Ascent (ASC)

Total Descent

DSC)

(

• The maximum total ascent and total descent value is 99,995 meters

(or 99,980 feet). Each value reverts to zero after the maximum is reached.

How current Altimeter Mode stopwatch session record data is updated Note

• When you press E to start a new Altimeter Mode stopwatch session, the

watch will clear data that is already stored in the current stopwatch session record.

• The watch takes altitude readings and calculates data as described below,

and updates the current stopwatch session record accordingly. Note that measurement and saves depend on whether or not the watch is in the Altimeter Mode.

• In the Altimeter Mode Altitude Measurement

• Outside the Altimeter Mode

Readings are taken and session data is updated every two minutes.

Historical Record

The historical record keeps track of high altitude, low altitude, total ascent, and total descent values across multiple Altimeter Mode stopwatch sessions. The contents of this record are updated continually while an Altimeter Mode stopwatch operation is in progress.

How the historical record is updated

The watch performs the following operations continually while an Altimeter Mode stopwatch operation is in progress.

Data

High Altitude

Low Altitude

Total Ascent Total Descent

• See “Clearing the Historical Record” for information about clearing the

historical record, which restarts all data values from zero.

Other Altimeter Mode Features

This section explains other features and settings that are available in the Altimeter Mode. Note that all of the information in this section applies to all types of Altimeter Mode measurements, unless specifically indicated otherwise.

Specifying a Reference Altitude

After you specify a reference altitude, the watch adjusts its air-pressure-toaltitude conversion calculation accordingly. The altitude measurements produced by this watch are subject to error caused by changes in air pressure. Because of this, we recommend that you update the reference altitude whenever one is available during your climb.

Highest altitude reached during the current Altimeter Mode stopwatch session.

Lowest altitude reached during the current Altimeter Mode stopwatch session.

Total cumulative ascent during the current Altimeter Mode stopwatch session.

Total cumulative descent during the current Altimeter Mode stopwatch session.

Interval

0'05"

2'00"

First 3 minutes

Updated every 5 seconds

The historical record value is compared with the current reading and the greater of the two is recorded in the historical record.

The historical record value is compared with the current reading, and the lesser of the two is recorded in the historical record.

The current Altimeter Mode stopwatch session value is added to the historical record value.

Description

After 3 minutes

Updated every 5 seconds

Updated every 2 minutes

Update Operation

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