Casio Backlight QW-1471 User Manual download pdf (Page 7)

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ALARM FUNCTIONS

Five independent daily alarms can be set.

Each alarm lets you set the hour and

minutes. When the Daily Alarm is on, the

alarm sounds for 20 seconds at the preset

time each day. Press any button to stop the

alarm after it starts to sound.

When the Hourly Time Signal is on, the

watch beeps every hour on the hour.

• The segments in the graphic display

create a rotational movement effect while

an alarm is sounding.

To set alarms

1. Use C to enter the Alarm Mode.

2. Press D to select Alarm 1 through 5.

Alarm 1 Alarm 4

Hourly Time Signal Alarm 5

Alarm 2 Alarm 3

3. After you select an alarm, hold down A until the hour digits flash on the

display. The hour digits flash because they are

selected

• At this time, the alarm is automatically switched on.

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

Hour Minutes

5. Press D to increase the selected digits and B to decrease them.

Holding down either button changes the selection at high speed.

• The format (12-hour or 24-hour) of the alarm time matches the format you

selected for normal timekeeping.

• When setting the alarm time using the 12-hour format, take care to set

the time correctly as morning (no indicator) or afternoon (P).

6. After you set the alarm, press A to return to the Alarm Mode.

To switch an alarm or the Hourly Time Signal on and off

1. In the Alarm Mode, press D to select an alarm or the Hourly Time Signal.

2. When the alarm or Hourly Time Signal you want to is selected, press B

to switch it on and off.

Indicates alarm is ON.

Indicates Hourly Time Signal is ON.

• If any alarm is on, the alarm on indicator (

) is shown on the display

when you change to another mode.

To test the alarm

Hold down D while in the Alarm Mode to sound the alarm.

Graphic display

Alarm No.

Mode indicator

Hour

Alarm on

indicator

Minutes

STOPWATCH FUNCTIONS

The Stopwatch Functions let you measure

elapsed time, split times, and two finishes.

The range of the stopwatch is 23 hours, 59

minutes, 59.99 seconds.

Stopwatch functions are available in the

Stopwatch Mode, which you can enter

using C .

• In the Stopwatch Mode, the graphic

display indicates the counting of seconds.

(a) Elapsed time measurement

(b) Split time measurement

▼

Start

Stop

Split

Clear

▼▼▼

Stop

Split release

▼▼▼

Split release

Re-start

Stop

Graphic

display

Hours

Minutes

A S

Seconds

1/100 second

Mode indicator

First runner

finishes.

Record time of

second runner.

Second runner finishes.

Record time of first runner.

QUESTIONS & ANSWERS

Question: What causes incorrect direction readings?

Answer:

• Incorrect bidirectional calibration. Perform bidirectional calibration.

Remember that bidirectional calibration is required whenever batteries

are replaced.

• Nearby source of strong magnetism, such as a household appliance, a

large steel bridge, a steel beam, overhead wires, etc., or an attempt to

perform Digital Compass operation on a train, boat, etc. Move away

from large metal objects and try again. Note that digital compass

operation cannot be performed inside a train, boat, etc.

Question: What causes the Digital Compass to produce

different readings at the same location?

Answer:

• Direction being measured is somewhere between two measurable

directions (N and NNW, for example). The Digital Compass is designed

to indicate any one of 16 different directions. If you move the 12 o’clock

position slightly to the left or right (to move it off of the point between

the two measurable directions), the Digital Compass should consistently

produce the same reading.

• Magnetism generated by nearby high-tension wires are interfering with

reception of terrestrial magnetism. Move away from the high-tension

wires and try again.

Question: What does it mean when “– – –” appears in place

of a direction?

Answer: This is the abnormal magnetic field indicator. It means that

strong magnetism is being generated nearby. Move away from the

source of strong magnetism and try again.

Question: Why am I having problems performing Digital

Compass operations indoors?

Answer: TV, personal computer, speakers, or some other object is

interfering with terrestrial magnetism. Move away from the object

causing the interference or perform the Digital Compass operation

outdoors. Indoor Digital Compass operations are particularly difficult

inside ferroconcrete structures. Remember that you cannot perform

Digital Compass operations inside of trains, airplanes, etc.

Question: How does the altimeter work?

Answer: Generally, atmospheric pressure and temperature decrease

as altitude increases. This watch is equipped with a pressure sensor

and bases its altitude measurements on International Standard

Atmosphere (ISA) values stipulated by the International Civil Aviation

Organization (ICAO), which define relationships between altitude,

atmospheric pressure, and temperature.

There are two standard methods of expressing altitude: Absolute altitude

and Relative altitude. Absolute altitude expresses an absolute height above

sea level. Relative altitude expresses the difference between the height of

two different places.

0 m

500 m

1000 m

1500 m

2000 m

2500 m

3000 m

3500 m

4000 m

899 hPa/mb

795 hPa/mb

701 hPa/mb

616 hPa/mb

8.5

2.0

–4.5

–11.0

15.0

C1013 hPa/mb

About 6.5

per 1000 m

About 8 hPa/mb per 100 m

About 9 hPa/mb per 100 m

About 10 hPa/mb per 100 m

About 11 hPa/mb per 100 m

About 12 hPa/mb per 100 m

ALTITUDE ATMOSPHERIC PRESSURE TEMPERATURE

Source:

International Civil Aviation Organization

Rooftop at an altitude of 230m

above sea level

(Altitude above sea level)

Height of building

130m

(Relative altitude)

Sea

Example: To obtain readings that are close to absolute altitude.

When you are out hiking or mountain climbing, calibrate the altimeter using

an altitude value from another source (a signpost or map, for example). Do

this just before you start your altitude measurements.

1. At Point A, calibrate the altimeter to 400

meters.

2. Proceed from Point A to Point B, taking

altimeter measurements along the way.

• If you also have altitude data for Point B,

you should again calibrate the altimeter

there.

• Be sure to recalibrate at Point B if changing weather conditions produce

altitude reading errors.

• The following conditions will prevent you from obtaining accurate readings:

Atmospheric pressure changes because of changes in the weather

Extreme temperature changes

Subjecting the watch to strong impact

400

1 2 3 4 5 6 7 8

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Casio Backlight QW-1471 User Manual Page 7

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