Casio GDF100-1A Operation Manual Download Page 7

Operation Guide 3255

E-60

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)
Measurement timing: 5-second interval for fi rst 3 minutes followed by 2-minute 

interval for next 1 hour in the Barometer/Thermometer Mode

Other: Calibration; Barometric pressure differential pointer

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)
Measurement timing: 5-second interval for fi rst 3 minutes followed by 2-minute 

interval for next 1 hour

Other: Calibration

E-61

Pressure Sensor Precision:

Conditions

(Altitude)

Altimeter

Barometer

Fixed
temperature

0 to 6000 m
0 to 19680 ft.

± (altitude differential × 2%
+ 15 m) m
± (altitude differential × 2%
+ 50 ft.) ft.

± (pressure differential × 2%
+ 2 hPa) hPa
± (pressure differential × 2%
+ 0.059 inHg) inHg

6000 to 10000 m
19680 to 32800 ft.

± (altitude differential × 2%
+ 25 m) m
± (altitude differential × 2%
+ 90 ft.) ft.

Effect of 
variable
temperature

0 to 6000 m
0 to 19680 ft.

± 50 m every 10°C
± 170 ft. every 50°F

± 5 hPa every 10°C
± 0.148 inHg every 50°F

6000 to 10000 m
19680 to 32800 ft.

± 70 m every 10°C
± 230 ft. every 50°F

 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-62

Temperature Sensor Precision:

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

World Time:

 48 cities (31 time zones)

Other: Daylight Saving Time/Standard Time

Stopwatch:

Measuring unit: 1/100 second
Measuring capacity: 23:59' 59.99"
Measuring modes: Elapsed time, split time, two fi nishes

Countdown Timer:

Measuring unit: 1 second
Countdown start time setting range: 1 minute to 24 hours (1-hour increments and 

1-minute increments)

Alarms:

 5 Daily alarms; Hourly time signal

Illumination:

 LED (Light-emitting diode); Selectable illumination duration 

(approximately 1 second or 3 seconds)

Other:

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

E-63

Battery:

 One lithium battery (Type: CR2025)

Approximate battery operating time: 5 years under the following conditions:

 1 illumination operation (1.5 seconds) per day

 10 seconds of alarm operation per day

 10 hours of altimeter measurement, once per month

Frequent use of illumination runs down the battery.

L-1

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

City

Code

City

UTC Offset/

GMT Differential

SCL

Santiago

–4

YHZ

Halifax

YYT

St. Johns

–3.5

RIO

Rio De Janeiro

–3

FEN

Fernando de 

Noronha

–2

RAI

Praia

–1

UTC

0

LIS

Lisbon

LON

London

L-2

City

Code

City

UTC Offset/

GMT Differential

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

City

Code

City

UTC Offset/

GMT Differential

KBL

Kabul

+4.5

KHI

Karachi

+5

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

L-3

City

Code

City

UTC Offset/

GMT Differential

SEL

Seoul

+9

TYO

Tokyo

ADL

Adelaide

+9.5

GUM

Guam

+10

SYD

Sydney

NOU

Noumea

+11

WLG

Wellington

+12

 Based on data as of July 2010.

 The rules governing global times (GMT 

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

L-4

Summary of Contents for GDF100-1A

Page 1: ...nd Date Settings E 17 To change the current time and date settings E 21 Barometer Thermometer E 21 To enter and exit the Barometer Thermometer Mode E 26 To calibrate the pressure sensor and the temper...

Page 2: ...g screen 4 Press C to toggle between Daylight Saving Time On and Standard Time OFF Note that you cannot switch between standard time and daylight saving time DST while UTC is selected as your Home Cit...

Page 3: ...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 tempe...

Page 4: ...o strong impact E 35 There are two standard methods of expressing altitude Absolute altitude and relative altitude Absolute altitude expresses an absolute height above sea level Relative altitude expr...

Page 5: ...ge E 10 TMR will appear on the display for about one second Next the display will change to show the countdown time hours To specify the countdown start time 1 Enter the Countdown Timer Mode If a coun...

Page 6: ...your Home City s standard time daylight saving time DST setting Use the procedure under To change the current time and date settings page E 17 to change the standard time daylight saving time DST set...

Page 7: ...e two nishes Countdown Timer Measuring unit 1 second Countdown start time setting range 1 minute to 24 hours 1 hour increments and 1 minute increments Alarms 5 Daily alarms Hourly time signal Illumina...

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