Casio 3147 Operation Manual Download Page 12

Operation Guide 3147

12

Pressure Sensor and Temperature Sensor Calibration

The pressure sensor and temperature sensor built into the watch are
calibrated at the factory and normally require no further adjustment. If you
notice serious errors in the pressure readings and temperature readings
produced by the watch, you can calibrate the sensor to correct the errors.

Important!

Incorrectly calibrating the barometric pressure sensor can result in incorrect
readings. Before performing the calibration procedure, compare the
readings produced by the watch with those of another reliable and accurate
barometer.

Incorrectly calibrating the temperature sensor can result in incorrect
readings. Carefully read the following before doing anything.

Compare the readings produced by the watch with those of another
reliable and 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 before
adjusting.

To calibrate the pressure sensor and the temperature sensor

1. Press 

D

 to enter the Barometer/

Thermometer Mode.

2. In the Barometer/Thermometer Mode, hold

down 

A

 for about two seconds until either

OFF

 or the current temperature calibration

value starts to flash. This is the setting screen.

If you want to calibrate the barometric
pressure sensor, press 

D

 to move the

flashing to the middle display area. This is
the pressure sensor calibration screen.

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llll

lll

ll

llll

llll

llll

lll

lll

lll

lll

3. Use 

E

 (+) and 

B

 (–) to set the calibration value in the units shown below.

Temperature

0.1

°

C (0.2

°

F)

Barometric Pressure

1 hPa (0.05 inHg)

Pressing 

E

 and 

B

 at the same time returns to the factory calibration

(

OFF

).

4. Press 

A

 to return to the Barometer/Thermometer Mode screen.

To select the temperature, barometric pressure, and altitude units

1. Enter the Timekeeping Mode.
2. Hold down 

A

 until the city code starts to

flash, which indicates the setting screen.

3. Use 

D

 to select the setting screen for the unit

you want to change.

See step 3 under “To set the time and date
manually” for information about how to scroll
through setting screens.

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llll

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4. Press 

E

 to change the unit setting.

Each press of 

E

 changes the selected unit setting as shown below.

Temperature

°

C

 and 

°

F

Barometric Pressure

hPa

 and 

inHg

Altitude

m

 and 

ft

5. After the settings are the way you want, press 

A

 to exit the setting screen.

City Code Table

Pago Pago

Honolulu

Anchorage

Los Angeles

Denver

Chicago

New York

Santiago

Rio De Janeiro

Fernando de Noronha

Praia

London

Paris

Berlin

City

City

UTC offset

Other major cities in same time zone

Code

–11.0
–10.0
–09.0

–08.0

–07.0

–06.0

–05.0

–04.0
–03.0
–02.0
–01.0

+00.0

+01.0

Papeete
Nome
San Francisco, Las Vegas, Vancouver,
Seattle/Tacoma, Dawson City, Tijuana
El Paso, Edmonton, Culiacan
Houston, Dallas/Fort Worth,
New Orleans, Mexico City, Winnipeg
Montreal, Detroit, Miami, Boston,
Panama City, Havana, Lima, Bogota
La Paz, Port Of Spain
Sao Paulo, Buenos Aires, Brasilia, Montevideo

Dublin, Lisbon, Casablanca, Dakar, Abidjan
Milan, Rome, Madrid, Amsterdam, Algiers, Hamburg,
Frankfurt, Vienna, Stockholm

PPG
HNL
ANC

LAX

DEN

CHI

NYC

SCL

RIO

FEN

RAI

UTC
LON

PAR

BER

Athens

Cairo

Jerusalem

Jeddah

Tehran

Dubai
Kabul

Karachi

Delhi

Dhaka

Yangon

Bangkok

Hong Kong

Taipei
Tokyo

Adelaide

Sydney

Noumea

Wellington

+02.0

+03.0
+03.5
+04.0
+04.5
+05.0
+05.5
+06.0
+06.5
+07.0

+08.0

+09.0
+09.5
+10.0
+11.0
+12.0

Helsinki, Istanbul, Beirut, Damascus,
Cape Town

Kuwait, Riyadh, Aden, Addis Ababa, Nairobi, Moscow
Shiraz
Abu Dhabi, Muscat

Male
Mumbai, Kolkata, Colombo

Jakarta, Phnom Penh, Hanoi, Vientiane
Singapore, Kuala Lumpur, Beijing, Manila, Perth,
Ulaanbaatar
Pyongyang, Seoul
Darwin
Melbourne, Guam, Rabaul
Port Vila
Christchurch, Nadi, Nauru Island

ATH

CAI

JRS
JED

THR
DXB

KBL

KHI

DEL
DAC

RGN

BKK

HKG

TPE
TYO
ADL

SYD

NOU
WLG

Based on data as of June 2007.

UTC offsets and the use of summer time are subject to change in the
country where they are used.

Summary of Contents for 3147

Page 1: ...is 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 About This Manual 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 mod...

Page 2: ...de LON PAR BER ATH HKG TPE TYO HNL ANC LAX DEN CHI NYC Frequency 60 0 kHz 77 5 kHz 68 5 kHz 40 0 kHz 60 0 kHz 60 0 kHz Transmitter Anthorn England Mainflingen Germany Shangqiu City China Fukushima Japan Fukuoka Saga Japan Fort Collins Colorado the United States The areas covered by the HNL and ANC city codes are quite far from the time calibration signal transmitters and so certain conditions may ...

Page 3: ...ailed If there was a previously successful reception If no reception was successful To turn auto receive on and off 1 In the Timekeeping Mode press E to display the last successful receive time and date screen 2 Hold down A until the current auto receive setting ON or OFF starts to flash This is the setting screen Note that the setting screen will not appear if the currently selected Home City is ...

Page 4: ... indicator A A 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...

Page 5: ...sure Because of this we recommend that you update the reference altitude whenever one is available during your climb To specify a reference altitude 1 In the Altimeter Mode hold down A for about two seconds until either OFF or the current reference altitude value starts to flash This is the setting screen 2 Press E or B to change the current reference altitude value by 5 meters or 20 feet You can ...

Page 6: ...g inHg as the display unit for the measured barometric pressure and Celsius C or Fahrenheit F as the display unit for the measured temperature value See To select the temperature barometric pressure and altitude units See Barometer and Thermometer Precautions for important precautions Barometric Pressure Graph Barometric pressure indicates changes in the atmosphere By monitoring these changes you ...

Page 7: ...he countdown start time is on the display in the Countdown Timer Mode hold down A until the hour setting of the countdown start time starts to flash which indicates the setting screen If the countdown start time is not displayed use the procedure under To use the countdown timer to display it Minutes Current time Hours Seconds 2 Press D to move the flashing between the hour and minute settings 3 U...

Page 8: ...ease as altitude increases This watch bases its altitude measurements on International Standard Atmosphere ISA values stipulated by the International Civil Aviation Organization ICAO These values define relationships between altitude air pressure and temperature 0 m 500 m 1000 m 1500 m 2000 m 2500 m 3000 m 3500 m 4000 m 899 hPa 795 hPa 701 hPa 616 hPa 8 5 C 2 C 4 5 C 11 C 15 C 1013 hPa About 6 5 C...

Page 9: ... areas described below whenever charging its rechargeable battery Also note that allowing the watch to become very hot can cause its liquid crystal display to black out The appearance of the LCD should become normal again when the watch returns to a lower temperature Warning Leaving the watch in bright light to charge its rechargeable battery can cause it to become quite hot Take care when handlin...

Page 10: ...Daylight Saving Time is turned on ll l l l l l l l l l l l l llllll DST indicator Reference This section contains more detailed and technical information about watch operation It also contains important precautions and notes about the various features and functions of this watch Auto Return Features The watch returns to the Timekeeping Mode automatically if you do not perform any button operation ...

Page 11: ...n for PAR BER and ATH Timekeeping Resetting the seconds to 00 while the current count is in the range of 30 to 59 causes the minutes to be increased by 1 In the range of 00 to 29 the seconds are reset to 00 without changing the minutes With the 12 hour format the P PM indicator appears on the display for times in the range of noon to 11 59 p m and no indicator appears for times in the range of mid...

Page 12: ...e Timekeeping Mode 2 Hold down A until the city code starts to flash which indicates the setting screen 3 Use D to select the setting screen for the unit you want to change See step 3 under To set the time and date manually for information about how to scroll through setting screens l l l l l l l l l l ll 4 Press E to change the unit setting Each press of E changes the selected unit setting as sho...

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