User manual

2376-4
4. While the Hourly Time Signal setting is selected, press B or D to switch the
hourly time signal on and off.
5. After you set the alarm time, press A to return to the Alarm Mode.
On Off
To switch the Daily Alarm on and off
While in the Alarm Mode, press D to switch the Daily Alarm on and off.
About the alarm
There are two different alarm sounds to choose from: high and low.
To test the alarm
Hold down B while in the Alarm Mode to sound the alarm. Each time you test the
alarm (by holding down B) a different alarm sounds. The sound produced the last
time you test the alarm is the one used for the alarm.
On Off
ERROR WARNING FUNCTION
This watch is designed to automatically stop taking measurements when there is a
sensor malfunction, when battery power drops below a certain level, or when
temperature drops below –10°C (or 14°F).
Sensor malfunction Low battery or Low temperature
Timekeeping Mode Timekeeping Mode
Alarm function disabled.
Important!
There may be cases where the “SENSOR Error” or “HELP” message is cleared once
you change modes. In this case, you can continue using the watch normally unless
the error warning message reappears.
Whenever you have a sensor malfunction, be sure to take the watch back to the
store or dealer where you purchased it. If the appearance of the “HELP” message
is caused by extremely low temperature, the message should clear from the
display when normal temperature returns.
THINGS TO KNOW ABOUT ALTITUDES
Relationships between altitude, barometric pressure, and temperature
Generally, atmospheric pressure and temperature decrease as altitude increases.
This watch bases its altitude measurements on International Standard Atmosphere
(ISA) values stipulated by the International Civil Aviation Organization (ICAO), which
define relationships between altitude, atmospheric pressure, and temperature.
0 m
500 m
1000 m
1500 m
2000 m
2500 m
3000 m
3500 m
4000 m
899 hPa/mb
795 hPa/mb
701 hPa/mb
616 hPa/mb
8.5°C
2°C
–4.5°C
–11°C
15°C1013 hPa/mb
About 6.5°C
per 1000 m
About 8 hPa/mb per 100 m
About 9 hPa/mb per 100 m
About 10 hPa/mb per 100 m
About 11 hPa/mb per 100 m
About 12 hPa/mb per 100 m
ALTITUDE ATMOSPHERIC PRESSURE TEMPERATURE
Source: International Civil Aviation Organization
0 ft
2000 ft
4000 ft
6000 ft
8000 ft
10000 ft
12000 ft
14000 ft
25.84 inHg
22.23 inHg
19.03 inHg
44.7°F
30.5°F
16.2°F
59.0°F29.92 inHg
About 3.6°F
per 1000 ft
About 0.15 inHg per 200 ft
About 0.17 inHg per 200 ft
About 0.192 inHg per 200 ft
About 0.21 inHg per 200 ft
Source: International Civil Aviation Organization
ALTITUDE ATMOSPHERIC PRESSURE TEMPERATURE
How altitude is expressed
There are two standard methods of expressing altitude: Absolute altitude and relative
altitude. Absolute altitude expresses an absolute height above sea level. Relative
altitude expresses the difference between the height of two difference places.
Height of building 130 m
(Relative altitude)
Rooftop at an altitude of
230 m above sea level
(Altitude above sea level)
Sea
Example: To obtain readings that are close to absolute altitude.
When you are out hiking or mountain climbing, calibrate the altimeter using an altitude
value from another source (a signpost or map, for example). Do this just before you
start your altitude measurements.
1. At Point A, calibrate the altimeter to 400
meters.
2. Proceed from Point A to Point B, taking
altimeter measurements along the way.
• If you also have altitude data for Point B, you
should again calibrate the altimeter there.
• Be sure to recalibrate at Point B if changing
weather conditions produce altitude reading
errors.
• The following conditions will prevent you from
obtaining accurate readings.
When atmospheric pressure changes because of changes in the weather
Extreme temperature changes
When the watch itself is subjected to strong impact
400
A
B
BACKLIGHT PRECAUTIONS
In any mode, Press L to illuminate the display for about two seconds.
• The illumination provided by the backlight may be hard to see when viewed under
direct sunlight.
• The battery that powers the backlight is different from the battery that powers other
watch operations.
• Frequent use of the backlight shortens the battery life.
• The backlight of this watch illuminates the analog face only.