Casio QW-3490 User Manual
MO2005-EA
© 2020 CASIO COMPUTER CO., LTD.
Operation Guide 3490
Congratulations upon your selection of this CASIO watch.
To ensure that this watch provides you with the years of service for which it is designed, carefully read
and follow the instructions in this manual, especially the information under “Operating Precautions” and
“User Maintenance”.
Keep all user documentation handy for future reference.
Applications
The built-in sensors of this watch measure direction, barometric pressure, temperature and altitude.
Measured values are then shown on the display. Such features make this watch useful when hiking,
mountain climbing, or when engaging in other such outdoor activities.
• The measurement functions built into this watch are not intended for taking measurements that
require professional or industrial precision. Values produced by this watch should be considered
as reasonable representations only.
•
When engaging in mountain climbing or other activities in which losing your way can create a
dangerous or life-threatening situation, always use a second compass to confi rm direction readings.
• Note that CASIO COMPUTER CO., LTD. assumes no responsibility for any damage or loss
suffered by you or any third party arising through the use of this product or its malfunction.
E
Warning !
About This Manual
• Depending on the model of your watch, digital display text appears
either as dark fi gures on a light background, or light fi gures on a dark
background. All examples in this manual are shown using dark fi gures
on a light background.
• Button operations are indicated using the letters shown in the
illustration.
• Note that the product illustrations in this manual are intended for
reference only, and so the actual product may appear somewhat
different than depicted by an illustration.
ENGLISH
Important!
• The watch’s Altimeter Mode calculates and displays relative altitude based on barometric pressure
readings produced by its pressure sensor. This means that readings taken at different times at the
same location may produce different altitude values due to changes in barometric pressure. Also note
that the value displayed by the watch may be different from the actual elevation and/or sea level
elevation indicated for the area where you are located.
• When using the altimeter of this watch for mountain climbing or other activities, it is highly
recommended that you check a map, local altitude indications, or some other source for your current
correct altitude and regularly calibrate the altimeter with the latest information. For more information,
see “To specify a reference altitude value” (page E-61).
• Whenever you use the digital compass of this watch for serious trekking, mountain climbing, or other
activities, be sure always to take along another compass to confi
by the digital compass of this watch are different from those of the other compass, perform bidirectional
calibration of the digital compass to ensure more accurate readings.
•
Direction readings and digital compass calibration will not be possible if the watch is in the vicinity of a
permanent magnet (magnetic accessory, etc.), metal objects, high-voltage wires, aerial wires, or
electrical household appliances (TV, computer, cellphone, etc.)
rm readings. If the readings produced
Things to check before using the watch
1. Check the battery power level.
Is “H” or “M” displayed for the battery power indicator (page E-10)?
NO YES
Does any one of the following conditions exist?
• Battery power indicator shows “L” and “LOW” is flashing on the
display.
• “CHG” is flashing on the display.
• The face is blank.
Power is low. Charge the watch by placing it in a location
where it is exposed to light. For details, see “Charging the
Watch” (page E-9).
YES
Battery power
indicator
The watch is charged
sufficiently.
For details about
charging, see
“Charging the Watch”
(page E-9).
NEXT
Go to step 2.
E-1
E-2
2. Check the Home City and the daylight saving time (DST) setting.
Use the procedure under “To confi gure Home City and summer time settings” (page E-28) to confi gure
your Home City and daylight saving time settings.
Important!
• Proper time calibration signal reception, and World Time Mode and Sunrise/Sunset Mode data depend
on correct Home City, time, and date settings in the Timekeeping Mode. Make sure you confi gure
these settings correctly.
3. Set the current time.
•
To set the time using a time calibration signal
See “To get ready for a receive operation” (page E-16).
• To set the time manually
See “Confi
The watch is now ready for use.
• For details about the watch’s radio controlled timekeeping feature, see “Radio Controlled Atomic
E-4
guring Current Time and Date Settings Manually” (page E-30).
Timekeeping” (page E-14).
Specifying Temperature, Barometric Pressure, and Altitude Display Units …………………… E-44
To specify temperature, barometric pressure, and altitude display units ……………………… E-44
Taking Barometric Pressure and Temperature Readings ………………………………………… E-46
To take barometric pressure and temperature readings ………………………………………… E-46
To enable or disable the barometric pressure change alert …………………………………… E-51
To calibrate the pressure sensor and the temperature sensor ………………………………… E-53
Using the Altimeter Mode ………………………………………………………………………………… E-55
To select the altitude screen format ……………………………………………………………… E-57
To select the altitude auto reading interval ……………………………………………………… E-58
To take altitude readings …………………………………………………………………………… E-60
To specify a reference altitude value ……………………………………………………………… E-61
To specify the altitude differential start point ……………………………………………………… E-62
To use the altitude differential value ……………………………………………………………… E-63
To save a reading manually ………………………………………………………………………… E-64
To start trek log value updating …………………………………………………………………… E-67
To stop trek log value updating …………………………………………………………………… E-67
Viewing Altitude Records ………………………………………………………………………………… E-72
To view altitude records …………………………………………………………………………… E-72
To delete all manually saved data ………………………………………………………………… E-76
To delete data in a specifi c memory area ………………………………………………………… E-76
Contents
About This Manual …………………………………………………………………………………………… E-2
Things to check before using the watch ………………………………………………………………… E-3
Charging the Watch …………………………………………………………………………………………… E-9
To recover from the sleep state …………………………………………………………………… E-13
Radio Controlled Atomic Timekeeping ………………………………………………………………… E-14
To get ready for a receive operation ……………………………………………………………… E-16
To perform manual receive ………………………………………………………………………… E-18
To check the latest signal reception results ……………………………………………………… E-21
To turn auto receive on or off ……………………………………………………………………… E-21
Mode Reference Guide …………………………………………………………………………………… E-23
Timekeeping ………………………………………………………………………………………………… E-27
Confi guring Home City Settings ………………………………………………………………………… E-28
To confi gure Home City and summer time settings ……………………………………………… E-28
Confi guring Current Time and Date Settings Manually ……………………………………………… E-30
To change the current time and date settings manually ………………………………………… E-30
Taking Direction Readings ……………………………………………………………………………… E-33
To take a direction reading ………………………………………………………………………… E-33
To perform bidirectional calibration ………………………………………………………………… E-37
To perform magnetic declination correction ……………………………………………………… E-38
To store a direction angle reading in Bearing Memory ………………………………………… E-39
Looking up Sunrise and Sunset Times ………………………………………………………………… E-78
To enter the Sunrise/Sunset Mode ………………………………………………………………… E-78
To view the sunrise/sunset time for a particular date …………………………………………… E-79
To look up the sunrise and sunset times for a specifi c location ………………………………… E-80
Using the Stopwatch ……………………………………………………………………………………… E-82
To enter the Stopwatch Mode ……………………………………………………………………… E-82
To perform an elapsed time operation …………………………………………………………… E-82
To pause at a split time ……………………………………………………………………………… E-82
To measure two fi nishes …………………………………………………………………………… E-83
Using the Countdown Timer ……………………………………………………………………………… E-84
To enter the Countdown Timer Mode ……………………………………………………………… E-84
To specify the countdown start time ……………………………………………………………… E-84
To perform a countdown timer operation ………………………………………………………… E-85
To stop the alarm …………………………………………………………………………………… E-85
Using the Alarm …………………………………………………………………………………………… E-86
To enter the Alarm Mode …………………………………………………………………………… E-86
To set an alarm time ………………………………………………………………………………… E-87
To turn an alarm and the Hourly Time Signal on and off………………………………………… E-88
To stop the alarm …………………………………………………………………………………… E-89
E-3
E-5
E-6
E-7
g
l
l
l
l
l
l
l
l
l
l
Operation Guide 3490
Checking the Current Time in a Different Time Zone ………………………………………………… E-90
To enter the World Time Mode …………………………………………………………………… E-90
To view the time in another time zone …………………………………………………………… E-90
To specify standard time or daylight saving time (DST) for a city ……………………………… E-91
Illumination ………………………………………………………………………………………………… E-92
To turn on illumination manually …………………………………………………………………… E-92
To change the illumination duration ……………………………………………………………… E-92
To turn the auto light switch on and off …………………………………………………………… E-94
Other Settings ……………………………………………………………………………………………… E-96
To turn the button operation tone on and off ……………………………………………………… E-96
To turn Power Saving on or off …………………………………………………………………… E-97
Troubleshooting …………………………………………………………………………………………… E-98
Specifi cations ……………………………………………………………………………………………… E-105
Operating Precautions …………………………………………………………………………………… E-109
User Maintenance ………………………………………………………………………………………… E-116
E-8
Important!
• 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.
• Turn on the watch’s Power Saving function (page E-13) and keep it in an area normally exposed to
bright light when storing it for long periods. This helps to ensure that power does not run down.
• Storing the watch for long periods in an area where there is no light or wearing it in such a way that it is
blocked from exposure to light can cause power to run down. Expose the watch to bright light
whenever possible.
Power Levels
You can get an idea of the watch’s power level by observing the battery power indicator on the display.
Level Battery Power Indicator Function Status
E-10
Battery power
indicator
1
(H)
2
(M)
3
(L)
l
All functions enabled.
All functions enabled.
Auto and manual receive, illumination,
beeper, and sensor operation disabled.
Charging the Watch
The face of the watch is a solar panel that generates power from light. The generated power charges a
built-in rechargeable battery, which powers watch operations. The watch charges whenever it is exposed
to light.
Charging Guide
Whenever you are not wearing the
watch, leave it in a location where it
is exposed to light.
• Best charging performance is
achieved by exposing the watch to
the strongest light available.
Warning!
Leaving the watch in bright light for charging can cause it to become quite hot.
Take care when handling the watch to avoid burn injury. The watch can become particularly hot
when exposed to the following conditions for long periods.
• On the dashboard of a car parked in direct sunlight
• Too close to an incandescent lamp
• Under direct sunlight
Level Battery Power Indicator Function Status
4
(CHG)
5 – – – All functions disabled.
• The fl ashing
bright light for charging is required as soon as possible.
• At Level 5, all functions are disabled and settings return to their initial factory defaults. Once the battery
reaches Level 2 (M) after falling to Level 5, reconfi gure the current time, date, and other settings.
Display indicators reappear as soon as the battery is charged from Level 5 to Level 2 (M).
•
• Leaving the watch exposed to direct sunlight or some other very strong light source can cause the
battery power indicator to show a reading temporarily that is higher than the actual battery level. The
correct battery level should be indicated after a few minutes.
• All data stored in memory is deleted, and the current time and all other settings return to their initial
factory defaults whenever battery power drops to Level 5 and when you have the battery replaced.
Power Recovery Mode
• Performing multiple sensor, illumination, or beeper operations during a short period may cause all of
the battery power indicators (H, M, and L) to start fl ashing on the display. This indicates that the watch
is in the power recovery mode. Illumination, alarm, countdown timer alarm, hourly time signal, and
sensor operations will be disabled until battery power recovers.
• Battery power will recover in about 15 minutes. At this time, the battery power indicators (H, M, L) will
stop fl ashing. This indicates that the functions listed above are enabled again.
LOW
indicator at Level 3 (L) tells you that battery power is very low, and that exposure to
Except for the current time and the
(charge) indicator, all functions and display
indicators disabled.
When wearing the watch, make sure
that its face is not blocked from light
by the sleeve of your clothing.
• The watch may enter a sleep state
(page E-13) if its face is blocked
by your sleeve even only partially.
CHG
E-9
E-11
• If all of the battery power indicators (H, M, L) are fl ashing and the
fl ashing, it means the battery level is very low. Expose the watch to bright light as soon as possible.
• Even if battery power is at Level 1 (H) or Level 2 (M), the Digital Compass Mode, Barometer/
Thermometer Mode, or Altimeter Mode sensor may be disabled if there is not enough voltage available
to power it suffi ciently. This is indicated when all of the battery power indicators (H, M, L) are fl
• Frequent fl ashing of all of the battery power indicators (H, M, L) probably means that remaining battery
power is low. Leave the watch in bright light to allow it to charge.
CHG
(charge) indicator also is
Charging Times
Daily
Exposure Level (Brightness)
Outdoor sunlight (50,000 lux) 5 min. 2 hours 14 hours 4 hours
Sunlight through a window (10,000 lux)
Daylight through a window on a
cloudy day (5,000 lux)
Indoor fl uorescent lighting (500 lux) 8 hours 162 hours – – – – – –
*1 Approximate amount of exposure time required each day to generate enough power for normal daily
operation.
*2 Approximate amount of exposure time (in hours) required to take power from one level to the next.
• The above exposure times all are for reference only. Actual exposure times depend on lighting
conditions.
• For details about the operating time and daily operating conditions, see the “Power Supply” section of
the Specifi cations (page E-108).
E-12
Operation
24 min. 6 hours 68 hours 19 hours
48 min. 11 hours 138 hours 37 hours
Level 5 Level 4 Level 3 Level 2 Level 1
*1
Level Change *2
Radio Controlled Atomic Timekeeping
This watch receives a time calibration signal and updates its time setting accordingly. However, when
using the watch outside of areas covered by time calibration signals, you will have to adjust the settings
manually as required. See “Confi guring Current Time and Date Settings Manually” (page E-30) for more
information.
This section explains how the watch updates its time settings when the city code selected as the Home
City is in Japan, North America, Europe, or China, and is one that supports time calibration signal
reception.
If your Home City Code setting is this:
LIS, LON, MAD, PAR, ROM, BER, STO, ATH, MOW Anthorn (England), Mainfl ingen (Germany)
HKG, BJS Shangqiu City (China)
TPE, SEL, TYO Fukushima (Japan), Fukuoka/Saga (Japan)
HNL, ANC, YVR, LAX, YEA, DEN, MEX, CHI, NYC, YHZ,
YYT
Important!
• The areas covered by
certain conditions may cause reception problems.
HKG
• When
time calibration signal. You need to switch manually between standard time and daylight saving time
(DST) if required. See “To confi gure Home City and summer time settings” (page E-28) for information
about how to do this.
E-14
MOW, HNL
and
BJS
or
is selected as the Home City, only the time and date are adjusted according to the
The watch can receive the signal from the transmitter
located here:
Fort Collins, Colorado (United States)
ANC
are quite far from the calibration signal transmitters, so
ashing.
Power Saving
When turned on, Power Saving enters a sleep state automatically whenever the watch is left for a certain
period in an area where it is dark. The table below shows how watch functions are affected by Power
Saving.
• For information about enabling and disabling power saving, see “To turn Power Saving on and off”
(page E-97).
• There actually are two sleep state levels: “display sleep” and “function sleep”.
Elapsed Time in Dark Display Operation
60 to 70 minutes (display sleep) Blank, with PS fl ashing Display is off, but all functions are enabled.
6 or 7 days (function sleep) Blank, with PS not fl ashing
• The watch will not enter a sleep state between 6:00 AM and 9:59 PM. If the watch is already in a sleep
state when 6:00 AM arrives, however, it will remain in the sleep state.
• The watch will not enter a sleep state while it is in the Stopwatch Mode or Countdown Timer Mode.
To recover from the sleep state
Move the watch to a well-lit area, press any button, or angle the watch towards your face for reading (page
E-93).
All functions are disabled, but timekeeping is
maintained.
E-13
Approximate Reception Ranges
UK and German Signals
Anthorn
500 kilometers
1,500 kilometers
The Anthorn signal is
receivable within this area
Japanese Signals Chinese Signal
500 kilometers
Fukuoka/Saga
Fukushima
Signals are receivable in the Taiwan area
when reception conditions are
Mainflingen
1,000 kilometers
ood.
North American Signal
2,000 miles
(3,000 kilometers)
600 miles
(1,000 kilometers)
For the Honolulu and Anchorage time zones, the
signal can be received when reception conditions
are favorable.
500 kilometers
1,500 kilometers
Fort Collins
Changchun
Beijing
Shangqiu
Shanghai
Chengdu
Hong Kong
E-15
Operation Guide 3490
• Even when the watch is within range of a transmitter, signal reception may be impossible due to the
effects of geographic contours, structures, weather, the time of year, the time of day, radio interference,
etc. The signal becomes weaker at distances of approximately 500 kilometers, which means that the
infl
uence of the conditions listed above becomes even greater.
• Signal reception may not be possible at the distances noted below during certain times of the year or
day. Radio interference may also cause problems with reception.
Mainfl ingen (Germany) or Anthorn (England) transmitters: 500 kilometers (310 miles)
Fort Collins (United States) transmitter: 600 miles (1,000 kilometers)
Fukushima or Fukuoka/Saga (Japan) transmitters: 500 kilometers (310 miles)
Shangqiu (China) transmitter: 500 kilometers (310 miles)
As of July 2019, China does not use Daylight Saving Time (DST). If China does go to the Daylight
•
Saving Time system in the future, some functions of this watch may no longer operate correctly.
To get ready for a receive operation
1. Confi
rm that the watch is in the Timekeeping Mode or World Time Mode. If it isn’t, use D to enter the
Timekeeping Mode or World Time Mode (page E-24).
2. The antenna of this watch is located on its 12 o’clock side. Position the watch with 12 o’clock facing
towards a window as shown in the nearby illustration. Make sure there are no metal objects nearby.
12 o’clock
or
E-16
• You can use the procedure under “To turn auto receive on and off” (page E-21) to enable or disable
auto receive.
To perform manual receive
Receiving
Receiving indicator
Receive successful
•
Signal rece ption normall y is better at nigh t.
• The receive o peration take s from two to ten mi nutes, but
i
me cases it ca n take as long as 2 0 minutes. Take
n so
care that you do n ot perform a ny button ope ration or
move the watch dur ing this time.
1. Use D to select the Receive Mode (
• One secon d after R/C ap
will scroll acro ss the upper disp lay.
2. Hold down A until
disappears.
• A signal level indi cator (L1, L2, o
on the display af ter reception starts. D o not allow the watch to
move and do not p erform any bu tton operati on until GET or ERR
appears on t he display.
• If the receive o peration is suc cessful, the re ception date and t ime
ear on the dis play, along with the GET indicator.
app
The watch will ret urn to the Time keeping Mode i f you press D or
if you do not pe rform any but ton operatio n for about tw o or three
minutes.
RC Hold
R/C
pears on the d isplay, the text RECEIVED
) as shown on page E-24.
appears on the display and then
r L3, s
ee page E-20) w ill appear
• Signal rece ption may be dif fi cult or even impos sible under th e conditions d escribed bel ow.
Inside or
among
buildings
3. What you should do next depends on whether you are using auto receive or manual receive.
• Auto receive: Leave t he watch over night in th e location yo u selected in step 2. S ee “Auto Receive”
ow for details.
bel
• Manual rec eive: Perform th e operation un der “To perform m anual receive” o n page E-18.
Auto Receive
• With auto receive, the watch performs the receive operation each day automatically up to six times (up
to fi ve times for the Chinese calibration signal) between the hours of midnight and 5 a.m. (according to
the Timekeeping Mode time). When any receive operation is successful, none of the other receive
operations for that day are performed.
When a calibration time is reached, the watch will perform the receive operation only if it is in the
•
Timekeeping Mode or World Time Mode. The receive operation is not performed if a calibration time is
reached while you are confi guring settings.
Receive failed
Inside a
vehicle
Near
household
appliances,
offi ce
equipment,
or a mobile
phone
• If the current rec eption fails but a p revious receptio n (within the
last 24 hours) was su ccessful, th e display shows th e receiving
indicator and t he ERR indicator. If the ERR indicator o nly is
displayed (with out the receiv ing indicator), it mea ns that all of the
receive opera tions over the pas t 24 hours have failed.
The watch will ret urn to the Time keeping Mode w ithout cha nging
the time set ting if you press D or if you do not p erform any bu tton
operation fo r about two o r three minutes.
Note
• You can interrupt a tim e calibration si gnal reception o peration by
re
ssing any but ton.
p
Near a
construction
site, airport
Near
high-tension
power lines
Among or
behind
mountains
E-17
E-18
Signal Level Indicator
E-20
Radio-controlled Atomic Timekeeping Precautions
• Strong electrostatic charge can result in the wrong time setting.
• Even if a receive operation is successful, certain conditions can cause the time setting to be off by up
to one second.
• The watch is designed to update the date and day of the week automatically for the period January 1,
2000 to December 31, 2099. Updating of the date by signal reception will no longer be performed
starting from January 1, 2100.
• If you are in an area where signal reception is not possible, the watch keeps time with the precision
noted in “Specifi cations”.
The receive operation is disabled under any of the following conditions.
•
– While power is at Level 3 (L) or lower (page E-10)
– While the watch is in the power recovery mode (page E-11)
– While a direction, barometric pressure/temperature, or altitude reading operation is in progress
– When the watch is in the function sleep state (“Power Saving”, page E-13)
– While barometric pressure change indicator is being measured
– While a trek log updating is enabled
– While a countdown timer operation is in progress (page E-84)
• A receive operation is cancelled if an alarm sounds while it is being performed.
• The Home City setting reverts to the initial default of
drops to Level 5 or when you have the rechargeable battery replaced. If this happens, change the
Home City to the setting you want (page E-28) .
E-22
During signal reception, the signal level indicator displays the signal level
as shown below.
Weak (Unstable) Strong (Stable)
The level indication will change in accordance with reception conditions
while reception is being performed.
As you watch the indicator, keep the watch in a location that best
maintains stable reception.
• Even under optimum reception conditions, it can take about 10
seconds for reception to stabilize.
• Note that weather, the time of day, surroundings, and other factors all
can affect reception.
TYO
(Tokyo) whenever the battery power level
To check the latest signal reception results
To turn auto receive on or off
On/Off status
Enter the Receive Mode (page E-24).
• When receive is successful, the display shows the time and date that
receive was successful.
reception operations were successful.
• To return to the Timekeeping Mode, press D.
- : - -
- - - -
and
indicate that none of the
1. Enter the Receive Mode (page E-24).
2. Hold down E for at least two seconds. First,
display. After that,
current auto receive setting (On or
display. Keep E depressed until the
the setting screen.
• Note that the s etting scree n will not appea r if the currently se lected
om
H
AUTO
will appear in the upper display and the
e City is one t hat does not sup port time c alibration rece ption.
3. Press A to toggle auto receive between on (On) and off (
SET Hold
OFF
) will appear in the middle
AUTO
screen appears. This is
will appear on
OFF
).
4. Press E to exit the setting screen.
Mode Reference Guide
Your watch has 11 “modes”. The mode you should select depends on what you want to do.
To do this: Enter this mode: See:
• View the current date in the Home City
• Confi gure Home City and daylight saving time (DST) settings
• Confi gure time and date settings manually
Determine your current bearing or the direction from your current location
to a destination
• View the barometric pressure and temperature at your current location
• View a graph of barometric pressure readings
• View the altitude at your current location
• Determine the altitude differential between two locations (reference
point and current location)
• Record an altitude reading with the reading time and date
View the sunrise and sunset times for a specifi
Recall records created in the Altimeter Mode Data Recall Mode E-72
Use the stopwatch to measure elapsed time Stopwatch Mode E-82
Use the countdown timer Countdown Timer Mode E-84
Set an alarm time Alarm Mode E-86
View the current time in one of 48 cities (31 time zones) around the globe World Time Mode E-90
• Perform a manual time calibration signal receive operation
• Check whether the last receive operation was successful
• Confi gure auto receive settings
c date Sunrise/Sunset Mode E-78
Timekeeping Mode
Digital Compass Mode E-33
Barometer/Thermometer
Mode
Altimeter Mode
Receive Mode
E-19
E-21
E-27
E-46
E-55
E-18
E-23
Operation Guide 3490
Selecting a Mode
• The illustration below shows which buttons you need to press to navigate between modes.
• To return to the Timekeeping Mode from any other mode, hold down D for about two seconds.
Timekeeping Mode
Stopwatch Mode
Countdown
Timer Mode
E-24
General Functions (All Modes)
The functions and operations described in this section can be used in all of the modes.
Direct Timekeeping Mode Access
• To enter the Timekeeping Mode from any other mode, hold down D for about two seconds.
Auto Return Features
• The watch will automatically return to the Timekeeping Mode if you do not perform any button operation
for a particular amount of time in each mode.
Mode Name Approximate Elapsed Time
Sunrise/Sunset, Data Recall, Alarm, Receive, Digital
Compass
Altimeter 1 hour minimum
Barometer/Thermometer 1 hour
Setting screen (digital setting fl ashing) 3 minutes
• If you leave a screen with fl ashing 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, or Digital Compass Mode, the data you were viewing
when you last exited the mode appears fi rst.
Scrolling
The A and C buttons are used on the setting screen to scroll through data on the display. In most
cases, holding down these buttons during a scroll operation scrolls through the data at high speed.
E-26
Data Recall
Mode
Alarm Mode
Sunrise/Sunset
Mode
World Time
Mode
3 minutes
12 hours maximum
Receive Mode
• You can use buttons A, B, and C to enter a sensor mode directly from the Timekeeping Mode or
from another sensor mode. To enter a sensor mode from the Sunrise/Sunset, Data Recall, Alarm,
Stopwatch, Countdown Timer, World Time, or Receive Mode, fi rst enter the Timekeeping Mode and
then press the applicable button.
Sensor Modes
Digital Compass Mode
Barometer/
Thermometer Mode
Altimeter Mode
Timekeeping
Use the Timekeeping Mode (
• Each press of E in the Timekeeping Mode will change screen contents as shown below.
Day of the Week/Date Screen Month/Day Screen Barometric Pressure
Day of week
Hour :
PM
Minutes
indicator
TIME
) to set and view the current time and date.
Day
Seconds
Month Day
Graph Screen
Barometric pressure graph
E-25
E-27
Confi guring Home City Settings
There are two Home City settings: actually selecting the Home City and selecting either standard time or
daylight saving time (DST).
City code
PM
indicator
Hour :
Minutes
DST indicator
To confi gure Home City and summer time settings
1. In the Timekeeping Mode, hold down E for at least two seconds.
SET Hold
First,
the upper display. After that, the currently selected city code and city
name will scroll across the upper display. Keep E depressed until the
scrolling starts.
• The watch will exi t the setting m ode automati cally if you do not
per
• For detail s about city c odes, see the “ City Code Table” at th e back
of this manual
2. Use A (East) and C (West) to scroll through the available city codes.
• Keep scrolling u ntil the city c ode you want to sele ct as your Home
City is
will fl ash on the display, and
form any opera tion for about t wo or three minutes.
.
displayed.
CITY
will be displayed in
3. Press D to display the DST setting screen.
4.
Use A to cycle through the DST settings in the sequence shown below.
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Seconds
Auto DST (AUTO) DST off (OFF)
DST on (ON)
Confi guring Current Time and Date Settings Manually
You can confi gure current time and date settings manually when the watch is unable to receive a time
calibration signal.
To change the current time and date settings manually
City code
PM
indicator
Hour :
Minutes
E-30
1. In the Timekeeping Mode, hold down E for at least two seconds.
SET Hold
First,
the upper display. After that, the currently selected city code and city
name will scroll across the upper display. Keep E depressed until the
scrolling starts.
will fl ash on the display, and
CITY
will be displayed in
• The Auto DS T (AUTO) setting w ill be available onl y when a city co de that suppor ts time calibration
signal recepti on (page E-14) is selected as the H ome City. While A uto DST is sele cted the DST
setting wi ll be changed auto matically in ac cordance with t ime calibratio n signal data.
• Note that you c annot switch bet ween standard time and dayl ight saving time (D ST) while U TC is
ected as your H ome City.
sel
5. After all of the settings are the way you want, press E twice to exit the setting screen.
• Daylight Savi ng Time is turne d on when the DST i
Note
• After you sp ecify a city c ode, the watch will u se UTC* off sets in the World Ti me Mode to calc ulate
the current tim e for other tim e zones based on th e current time in yo ur Home Cit y.
* Coordinated Universal Time, the world-wide scientifi c standard of timekeeping.
The reference point for UTC is Greenwich, England.
• Selecting s ome city co des automatic ally makes it po ssible for the watch to re ceive the time
ibration sign al for the corresp onding area. S ee page E-14 for details.
cal
nd
icator is on the d isplay.
2. Press D to move the fl ashing in the sequence shown below to select the other settings.
City Code
Thermometer/Barometer/
Altitude display unit
3. When the timekeeping setting you want to change is fl ashing, use A and/or C to change it as
described below.
DST
Screen To do this: Do this:
12/24-Hour
Format
Power
Saving
Change the city code Use A (East) and C (West).
Cycle between Auto DST (
Time (ON) and Standard Time (
Toggle between 12-hour (
timekeeping.
Reset the seconds to
(If the current seconds count is between 30 and 59,
one is added to the minute count).
Change the hour or minutes
Change the year, month, or day
Seconds Hour Minutes Year
Illumination
Duration
12H
00
AUTO
), Daylight Saving
OFF
) and 24-hour (
Button Operation
Tone
).
24H
Press A.
)
Press A.
Press A.
Use A (+) and C (–).
Day Month
4. After all of the settings are the way you want, press E twice to exit the setting screen.
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E-31
Operation Guide 3490
Note
• While the 12- hour format is se lected for time keeping, a P (PM
noon to 11:59 p.m. No indica tor appears for ti mes from midnig ht to 11:59 a.m. Wit h 24-hour fo rmat,
time is displaye d from 0:00 to 2 3:59, withou t any P (PM) indicator.
• The watch’s built- in full automat ic calendar ma kes allowances fo r different mo nth lengths and l eap
s. Once you se t the date, there sho uld be no reason to c hange it except af ter you have the
year
watch’s rechargea ble battery re placed or af ter power drops to Leve l 5 (page E-10).
• The day of the we ek changes auto matically wh en the date change s.
• Refer to the page s shown below fo r more informat ion on Timeke eping Mode se ttings.
- Button operation tone on/off: “To turn the button operation tone on and off” (page E-96)
- Illumination duration setting: “To change the illumination duration” (page E-92)
- Enabling and disabling power saving: “To turn Power Saving on and off” (page E-97)
- Changing the temperature, barometric pressure, and altitude display units (for a city code other
TYO
than
): “To specify temperature, barometric pressure, and altitude display units” (page E-44)
E-32
Objective
Bearing to objective:
Northwest
N: North
E: East
W: West
S: South
Note
• If the four poi nters (north, so uth, east, west) an d the literal directi on indicatio n do not appear
on th
e display when yo u press C, it could mea n that the watch is dis playing bearing m emory
information. If this happens, press E to delete the cur rent bearing me mory conte nts. For more
informatio n, see “Using B earing Mem ory” (page E- 39).
• To return to the Time keeping Mode, p ress D.
ng D will return to th e Timekeepin g Mode even is a readi ng operation is in p rogress.
Pressi
E-34
West
South
Bearing angle to objective
North pointer
) indicator will a ppear for time s from
Bearing Indication
Current
time
East
Meaning
315°
0°
Taking Direction Readings
The Digital Compass Mode uses a built-in direction sensor to take direction readings and display the
results. North is indicated by three graphic segments (
the bearing and the bearing angle to your objective.
• For information about what you can do to improve digital compass reading accuracy, see “Calibrating
the Bearing Sensor” (page E-35) and “Digital Compass Precautions” (page E-42).
To take a direction reading
1. Make sure the watch is in the Timekeeping Mode or any one of the sensor modes.
• The senso r modes are: Digit al Compass M ode, Baromete r/Therm ometer Mod e, and Altimete r
Mode
.
2. Place the watch on a fl at surface. If you are wearing the watch, make sure that your wrist is horizontal
(in relation to the horizon).
3. Point the 12 o’clock position of the watch in the direction whose reading you want to take.
4. Press C to start.
• COMP will appear in th e upper display to ind icate that a digita l compass ope ration is in progre ss.
bout one se cond after yo u press C, poi
• A
segment eac h for south, eas t, and west) will appe ar on the display to i ndicate nort h, south, east,
and west. Th e bearing to your obj ective will also b e indicated by literal i ndications an d a bearing
angle.
Digital Compass Readings
• When you press C to start digital compass reading operation,
display to indicate that a digital compass operation is in progress.
rst reading is obtained, the watch will continue to take digital compass readings automatically
• After the fi
each second for up to 60 seconds. After that, the reading operation will stop automatically.
shown for the literal direction indication and the bearing angle to your objective.
• The auto light switch is disabled during the 60 seconds that digital compass readings are being taken.
•
The margin of error for the bearing angle and the literal direction indication to your objective is ±11
degrees while the watch is horizontal (in relation to the horizon). If the indicated direction is northwest
(NW) and 315 degrees, for example, the actual direction can be anywhere from 304 to 326 degrees.
• Note that taking a direction reading while the watch is not horizontal (in relation to the horizon) can
result in large direction reading error.
You can calibrate the bearing sensor if you suspect the direction reading is incorrect.
•
• Any ongoing direction reading operation is paused temporarily while the watch is performing an alert
operation (daily alarm, Hourly Time Signal, countdown timer alarm) or while illumination is turned on (by
pressing L). The direction reading operation resumes for its remaining duration after the operation
that caused it to pause is fi
• See “Digital Compass Precautions” (page E-42) for important information about taking direction readings.
Calibrating the Bearing Sensor
You should calibrate the bearing sensor whenever you feel that the direction readings being produced by
the watch are off. You can use any one of two different bearing sensor calibration methods: bidirectional
calibration or magnetic declination correction.
Bidirectional Calibration
•
Bidirectional calibration calibrates the bearing sensor in relation to magnetic north. Use bidirectional
calibration when you want to take readings within an area exposed to magnetic force. This type of
calibration should be used if the watch becomes magnetized for any reason.
nished.
). The watch also displays literal indications of
nters (three graphi c segments for n orth, one gra phic
COMP
will initially appear on the
- - -
will be
E-33
E-35
Important!
• To ensure correct direction readings by this watch, be sure to perform bidirectional calibration before
using it. The watch may produce incorrect direction readings if you do not perform bidirectional
calibration.
Magnetic Declination Correction
•
With magnetic declination correction, you input a magnetic declination angle (difference between
magnetic north and true north), which allows the watch to indicate true north. You can perform this
procedure when the magnetic declination angle is indicated on the map you are using. Note that you can
input the declination angle in whole degree units only, so you may need to round off the value specifi ed
on the map. If your map indicates the declination angle as 7.4°, you should input 7°. In the case of 7.6°
input 8°, for 7.5° you can input 7° or 8°.
Precautions about bidirectional calibration
You can use any two opposing directions for bidirectional calibration. You must, however, make sure
•
that they are 180 degrees opposite each other. Remember that if you perform the procedure
incorrectly, you will get wrong bearing sensor readings.
• Do not move the watch while calibration of either direction is in progress.
• You should perform bidirectional calibration in an environment that is the same as that where you plan
to be taking direction readings. If you plan to take direction readings in an open fi
calibrate in an open fi eld.
E-36
To perform magnetic declination correction
Magnetic declination angle
direction value (E, W, or OFF)
Magnetic declination
angle value
1. In the Digital Compass Mode, hold down E for at least two seconds.
SET Hold
First,
scroll across the upper display. Keep E depressed until
CALIBRATION
2. Press D.
• DEC 0° will appear on the di splay and then th e current magneti c
d
eclination a ngle settin g will fl ash on the dis play.
3. Use A (East) and C (West) to change the settings.
•
The follow ing explains magn etic declinati on angle directi on
settings.
OFF
E: When magnetic north is to the east (east declination)
W: When magnetic north is to the west (west declination)
• You can select a value w ithin the range o f W 90° to E 90 ° with
the
• You can turn off (OFF) ma g
A
• The illustrat ion, for example, s hows the value yo u should input
and t
magnetic de clination of 1° West.
4. When the setting is the way you want, press E to exit the setting
screen.
will fl ash on the display. After that,
starts scrolling.
: No magnetic declination correction performed. The magnetic
declination angle with this setting is 0°.
se setting s.
and C at the same ti me.
he direction s etting you sh ould select wh en the map sho ws a
netic declin ation correct ion by pressing
eld, for example,
CALIBRATION
will
To perform bidirectional calibration
Using Bearing Memory
Bearing
memory
direction
angle value
Direction
angle of
current
reading
12 o’clock position
North pointer
Pointer to bearing
in bearing memory
Bearing Memory
Screen
1. In the Digital Compass Mode, hold down E for at least two seconds.
2. Place the watch on a level surface facing any direction you want, and
3. Rotate the watch 180 degrees.
4. Press C again to calibrate the second direction.
Bearing Memory lets you temporarily store and display a direction
reading so you can use it as a reference as you take subsequent digital
compass readings. The Bearing Memory screen displays the direction
angle for the stored reading, along with a pointer that indicates the stored
reading.
When you take digital compass readings while the Bearing Memory
screen is displayed, the direction angle of the current digital compass
reading (as read from the 12 o’clock position of the watch) and the stored
Bearing Memory direction reading will both be shown.
To store a direction angle reading in Bearing Memory
1. Press C to start a digital compass reading operation (page E-33).
SET Hold
First,
scroll across the upper display. Keep E depressed until
CALIBRATION
• At this time, th e north poi nter fl ashes at the 12 o’clock p osition
and t
calibrate the fi r st direction.
press C to calibrate the fi rst direction.
• - - - i
When calib ration is succe ssful, Tur n 180 ° will appe ar on the
display and th ree graphic segm ents (
After abo ut one second , CALIBRATI ON -2- will sc roll across the
upper display.
• If ERR-1 appears on the display, press C a
direction re ading operati on.
• - - - is shown on th e display while ca libration is bein g performe d.
Wh
change to the D igital Comp ass Mode scre en.
• This will ta ke an initial readin g and then take rea dings every
second for 6 0 seconds.
• If a bearing me mory direc tion angle valu e is already displaye d, it
mea
this happen s, press E to clear the Be aring Memo ry reading and
exit the bear ing memor y screen before pe rforming th e above step.
will fl ash on the display. After that,
starts scrolling.
he display will s how -1- to indica te that the watch is ready to
s shown on th e display while cal ibration is bein g performe d.
en calibratio n is successf ul, the display will s how OK and then
ns that there is a re ading already sto red in Bearing M emory. If
CALIBRATION
) will fl ash at 6 o’clock .
gain to restar t the
will
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E-38
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