Casio 3439 Operation Manual Download Page 12

E-88

Battery

 The low battery indicator is fl ashing on the digital display.

The watch’s battery power is low. Have the battery replaced as soon as 
possible.

See “Low Battery Indication” (page E-83).

Low battery indicator

Low battery indicator

E-89

Specifi cations

Accuracy at normal temperature:

 ±15 seconds a month

Timekeeping:

Hour, minutes, seconds, p.m. (P), year, month, day, day of the week

Time format: 12-hour and 24-hour
Calendar system: Full Auto-calendar pre-programmed from the year 2000 to 2099
Other: Three display formats (day of the week/day screen, month/day screen, barometric pressure 

graph screen); Home City code (can be assigned one of 48 city codes); Standard Time / Daylight 
Saving Time (summer time)
Year display on setting screen only.

Digital Compass:

60 seconds continuous reading; 16 directions; Angle value 0° to 359°; Four direction 

pointers; Calibration (bidirectional); Magnetic declination correction; Bearing Memory

Barometer:

Measurement and display range:
 

260 to 1,100 hPa (or 7.65 to 32.45 inHg)

Display unit: 1 hPa (or 0.05 inHg)
Reading timing: Daily from midnight, at two hour intervals (12 times per day); Every fi ve seconds in 

the Barometer/Thermometer Mode

Other: Calibration; Manual reading (button operation); Barometric pressure graph; Barometric 

pressure differential pointer; Barometric pressure change indicator

Thermometer:

Measurement and display range: –10.0 to 60.0°C (or 14.0 to 140.0°F)
Display unit: 0.1°C (or 0.2°F)
Reading timing: Every fi ve seconds in the Barometer/Thermometer Mode
Other: Calibration; Manual reading (button operation)

E-90

Altimeter:

Measurement range: –700 to 10,000 m (or –2,300 to 32,800 ft.) without reference altitude
Display range: –10,000 to 10,000 m (or –32,800 to 32,800 ft.)

 

Negative values can be caused by readings produced based on a reference altitude or due to 
atmospheric conditions.

Display unit: 1 m (or 5 ft.)
Current Altitude Data: Every second for the fi rst 3 minutes, followed by every 5 seconds for 

approximately 1 hour (

0’05

); every second for the fi rst 3 minutes, followed by every 2 minutes for 

approximately 12 hours (

2’00

)

Altitude Memory Data:

Manually saved records: 30 (altitude, date, time)
Auto saved values: One set of high altitude and its reading date and time, low altitude and its 

reading date and time, total ascent and its save start date, total descent and its save start date

Trek log data: High altitude, low altitude, cumulative ascent, cumulative descent for up to 14 treks

Other: Reference altitude setting; Altitude differential; Altitude auto measurement interval (

0’05

 or 

2’00

)

Bearing Sensor Precision:

Direction: Within ±10°

 

Values are guaranteed for a temperature range of 10°C to 40°C (50°F to 104°F).

North pointer: Within ±2 digital segments

Pressure Sensor Precision:

Measurement accuracy: Within ±3hPa (0.1 inHg) (Altimeter accuracy: Within ± 75m (246 ft.))

 Values are guaranteed for a temperature range of –10°C to 40°C (14°F to 104°F).

 Precision is lessened by strong impact to either the watch or the sensor, and by temperature 

extremes.

E-91

Temperature Sensor Precision:

±2°C (±3.6°F) in range of –10°C to 60°C (14.0°F to 140.0°F)

Sunrise/sunset:

Sunrise/sunset time display; selectable date

Stopwatch:

Measuring unit: 1/10 second
Measuring capacity: 999:59' 59.9"
Measuring accuracy: ±0.0006%
Measuring modes: Elapsed time, split time, two fi nishes

Countdown Timer:

Measuring unit: 1 second
Countdown range: 24 hours
Setting unit: 1 minute

Alarms:

 5 Daily alarms (with one snooze alarm); Hourly time signal

World Time:

 48 cities (31 time zones)

Other: Daylight Saving Time/Standard Time

Illumination:

 LED light; Selectable illumination duration (approximately 1.5 seconds or 3 seconds); Auto 

Light Switch

Other:

 Low-temperature resistance (–10°C/14°F); Button operation tone on/off; Low battery alert

E-92

Battery:

 One lithium battery (Type: CR1616)

Approximate Battery life : 2 years
Conditions

 Light: 1.5 seconds/day

 Beeper: 10 seconds/day

 Direction readings: 20 times/month

 Climbs: Once (approximately 1 hour of altitude readings)/month 

 Barometric pressure change indicator readings: Approximately 24 hours/month

 Barometric pressure graph: Readings every 2 hours

Frequent use of illumination runs down the battery. Particular care is required when using the auto 
light switch (page E-81).

L-1

L-2

City Code Table

City

Code

City

UTC Offset/

GMT Differential

PPG

Pago Pago

–11

HNL

Honolulu

–10

ANC

Anchorage

–9

YVR

Vancouver

–8

LAX

Los Angeles

YEA

Edmonton

–7

DEN

Denver

MEX

Mexico City

–6

CHI

Chicago

NYC

New York

–5

SCL

Santiago

–4

YHZ

Halifax

YYT

St. Johns

–3.5

RIO

Rio De Janeiro

–3

FEN

Fernando de 

Noronha

–2

RAI

Praia

–1

City

Code

City

UTC Offset/

GMT Differential

UTC

0

LIS

Lisbon

LON

London

MAD

Madrid

+1

PAR

Paris

ROM

Rome

BER

Berlin

STO

Stockholm

ATH

Athens

+2

CAI

Cairo

JRS

Jerusalem

MOW

Moscow

+3

JED

Jeddah

THR

Tehran

+3.5

DXB

Dubai

+4

KBL

Kabul

+4.5

KHI

Karachi

+5

L-3

City

Code

City

UTC Offset/

GMT Differential

DEL

Delhi

+5.5

KTM

Kathmandu

+5.75

DAC

Dhaka

+6

RGN

Yangon

+6.5

BKK

Bangkok

+7

SIN

Singapore

+8

HKG

Hong Kong

BJS

Beijing

TPE

Taipei

SEL

Seoul

+9

TYO

Tokyo

ADL

Adelaide

+9.5

GUM

Guam

+10

SYD

Sydney

NOU

Noumea

+11

WLG

Wellington

+12

*

  As of June 2014, the offi cial UTC offset for 

Moscow, Russia (MOW) was changed from +3 
to +4, but this watch still uses an offset of +3 
(the old offset) for MOW. Because of this, you 
should leave the summer time setting turned 
on (which advances the time by one hour) for 
the MOW time.

 The rules governing global times (GMT 

differential and UTC offset) and summer time 
are determined by each individual country.

Operation Guide 3439

Summary of Contents for 3439

Page 1: ...check before using the watch 1 Check the Home City and the daylight saving time DST setting Use the procedure under To configure Home City and summer time settings page E 14 to configure your Home City and daylight saving time settings Important World Time Mode and Sunrise Sunset Mode data depend on correct Home City time and date settings in the Timekeeping Mode Make sure you configure these setting...

Page 2: ...Sunset Data Recall Alarm Digital Compass 3 minutes Altimeter 1 hour minimum 12 hours maximum Barometer Thermometer 1 hour Setting screen digital setting flashing 3 minutes If you leave a screen with flashing digits on the display for two or three minutes without performing any operation the watch exits the setting screen automatically Initial Screens When you enter the Data Recall Alarm World Time o...

Page 3: ...way from the source of strong magnetism perform bidirectional calibration and then try taking a reading again For more information refer to To perform bidirectional calibration page E 23 and Location page E 27 Digital Compass Readings When you press C to start digital compass reading operation COMP will initially appear on the display to indicate that a digital compass operation is in progress Aft...

Page 4: ...ding skills and experience are required to determine your current location and destination on a map E 27 Digital Compass Precautions Magnetic North and True North The northerly direction can be expressed either as magnetic north or true north which are different from each other Also it is important to keep in mind that magnetic north moves over time Magnetic north is the north that is indicated by...

Page 5: ...es in pressure If it determines there has been a significant change in pressure it will beep and all of the graphic segments around the periphery of the face will flash as a barometric pressure change alert This means you could start taking barometric pressure readings after reaching a lodge or camp area and then check the watch the next morning for changes in pressure and plan you day s activities ...

Page 6: ... 00 will be flashing in the center display 3 Press A to toggle the altitude auto measurement interval setting between 0 05 and 2 00 4 Press E to exit the setting screen E 44 Taking Altitude Readings Use the procedure below to take basic altitude readings See Using Reference Altitude Values page E 46 for information about how to make altimeter readings more accurate See How does the altimeter work p...

Page 7: ... Mode Cumulative ascent and cumulative descent values are updated whenever there is a difference of at least 15 meters 49 feet from one reading to the next E 52 Trek Log Values While trek log updating is enabled altitude values high altitude low altitude cumulative ascent descent for a particular trek are automatically checked and updated at regular intervals even if you exit the Altimeter Mode Va...

Page 8: ...has been deleted or if there is no corresponding MAX MIN data due to error etc In such cases total ascent ASC and total descent DSC values will show zero When the total ascent ASC or total descent DSC exceeds 99 999 meters or 327 997 feet the applicable value will restart from zero Note that the watch can display up to five digits only When using feet as the altitude display units altitude values a...

Page 9: ... within following ranges Latitude Range 65 0 S South 65 0 degrees to 0 N to 65 0 N North 65 0 degrees Longitude Range 179 9 W West 179 9 degrees to 0 E to 180 0 E East 180 0 degrees Latitude and longitude values are rounded off to the nearest degree 6 Press E to return to the Timekeeping Mode 7 In the Timekeeping Mode press D Display the location whose sunrise and sunset times you want to view Lat...

Page 10: ...nt time in the currently selected World Time City E 77 To specify standard time or daylight saving time DST for a city 1 In the World Time Mode use A East and C West to scroll through the available city codes Keep scrolling until the city code whose Standard Time Daylight Saving Time setting you want to change is displayed 2 Hold down E for at least two seconds Keep E depressed until the current s...

Page 11: ... from the elevation and or sea level altitude indications in my area Negative sea level altitude values are produced in a location where the indicated elevation is a positive value I can t get correct altitude readings Relative altitude is calculated based on changes in barometric pressure measurement by its pressure sensor This means that barometric pressure changes can cause readings taken at di...

Page 12: ... C 50 F to 104 F North pointer Within 2 digital segments Pressure Sensor Precision Measurement accuracy Within 3hPa 0 1 inHg Altimeter accuracy Within 75m 246 ft Values are guaranteed for a temperature range of 10 C to 40 C 14 F to 104 F Precision is lessened by strong impact to either the watch or the sensor and by temperature extremes E 91 Temperature Sensor Precision 2 C 3 6 F in range of 10 C ...

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