Casio Backlight QW-1471 User Manual download pdf (Page 6)

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Important!

Incorrectly calibrating the temperature measurement of this watch can result

in incorrect readings. Carefully read the following before doing anything.

• Compare the readings produced by the watch with those of another

reliable, accurate thermometer.

• If adjustment is required, remove the watch from your wrist and wait for

20 or 30 minutes to give the temperature of the watch time to stabilize.

To calibrate the temperature

1. Display the Barometric Pressure/

Temperature Display.

2. Hold down A until the display clears.

“OFF” or the temperature value should

be flashing on the display.

• The “OFF” indicator appears when the

factory setting is being used for the

calibration.

3. Each press of D increases the displayed

temperature by 0.1°C while pressing B

decreases it. Holding down either button

changes the value at high speed.

• Any time you calibrate the temperature, the message “TEMP ADJ”

appears on the display. This message remains on the display in any

mode in which the temperature is displayed.

• Pressing B and D at the same time returns to the “OFF” display.

4. After calibrating the temperature, press A to return to the Barometric

Pressure/Temperature Display.

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

digits are flashing, the flashing stops and the watch goes back to the

Barometric Pressure/Temperature 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. Display the barometric pressure and

temperature in the Timekeeping Mode.

2. Hold down A until the display clears.

“OFF” or the temperature value should

be flashing on the display.

3. Press C to show the barometric

pressure calibration display. At this time,

“OFF” or the barometric pressure value

should be flashing on the display.

• 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.

• Pressing B and D at the same time returns to the “OFF” display.

5. After calibrating the barometric pressure, press A to return to the

Barometric Pressure/Temperature Display.

• 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 Display.

hPa mb

A S

THERMOMETER FUNCTIONS

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.

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 Modes. Temperature

measurements are taken every five seconds for the first three minutes after

you display the Timekeeping Mode’s barometric pressure/temperature

display, 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.

Understanding the temperature display

1. Use C to enter the Timekeeping Mode.

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

• The display shows “– –. – °C” if a measured value falls outside the range

of –10.0°C to 60.0°C. The normal display will return as soon as the

temperature returns within the allowable range.

• For details on viewing the temperature in the Altimeter Mode, see

“Understanding the altimeter display”.

Temperature

hPa mb

A S

[ Barometric Pressure/Temperature Display ]

Calibrating the temperature measurement

The temperature 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 temperature readings produced by the watch, you can adjust

it to correct the error.

hPa mb

A S

hPa mb

TEMP ADJ

WARNING INDICATORS

Warning indicators appear whenever any of the conditions described below

occur. Appearance of a warning indicator causes any measurement

operation that is currently underway to stop. Warning indicators appear in

the upper display, and this causes “– – –” to replace any directional,

altitude, barometer, or temperature values on the display.

Abnormal Magnetic Field Indicator

This indicator appears whenever the Digital

Compass has a problem obtaining a correct

reading. This condition could indicate that

the watch is within a very high magnetic

field, and so you should try moving to

another location. Also, see “Digital

Compass Precautions” for further information on conditions that cause errors.

Low Battery Indicator

This message indicates that battery power

is too low to preform the measurement. It

appears whenever battery power drops

below a certain level, or when you try to

use this watch under very cold conditions

(below about –10.0°C).

If the “BAT” message appears because of use under cold conditions, it

should clear (and normal operation should return) after the watch is brought

back to normal temperature.

If battery power is low (indicated “BAT” appears under normal temperatures),

you should have the batteries replaced as soon as possible. Note that

replacement of the batteries causes all memory contents to be cleared.

Sensor Malfunction Indicator

This message indicates malfunction of

pressure sensor circuitry. Whenever a

sensor malfunction initially occurs, the

“ERR” messages flashes on the display and

a buzzer sounds for three seconds.

Note that calibrating the Digital Compass may cause the “ERR” message to

appear. In this case, the message does not indicate sensor malfunction,

and should be corrected if you re-calibrate the Digital Compass.

Important!

• If the sensor is malfunctioning when it comes time for an barometric

pressure measurement to be taken, the barometric pressure value

appears as “– – – –” on the display and the corresponding point on the

barometric pressure graph is left blank.

• There may be cases where the “ERR” or “BAT” message is cleared once

you change modes. In this case, you can continue using the watch

normally unless the error warning message reappears.

Whenever there is a sensor malfunction, be sure to take the watch to an

authorized CASIO distributor or Service Center as soon as possible.

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Casio Backlight QW-1471 User Manual Page 6

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