La Crosse Technology UV100 User Manual
UV Master
Prevent You Getting UV Over-Exposure
Instruction Manual
2.0 Parts and Its Functions
UV Index
Color Code
Light
Mode
Display
Note: The operations of the buttons
are summarized in the adjacent
paragraphs. However, for the detail
operations, please check the coming
chapters.
Start/Stop
Lap/Reset
UV Sensor
[mode] Button
l Press the button to select among the 5 function
modes l In function modes: Press and hold the button
to select setting display l During setting displays: Press
the button to select among different setting items. Press
and hold the button to exit setting sequence.
[start/stop] Button
l In Current Time Mode: Press the button to select
between the Date Display and UV Index Display l In
Daily Alarm Mode: Press the button to select between
ON and OFF the daily alarm l In Chronograph Mode
and Timer Mode: Press the button to start/stop the
counting l In setting displays: Press the button to scroll
through the setting.
[lap/reset] Button
l In Daily Alarm Mode: Press the button to select
between ON and OFF of the hourly chime In
Chronograph Mode: When counting, press the button to
select the Lap time display. When stop-counting, pres s
the button to reset to zero display l In Timer Mode:
When stop-counting, press the button to reset the timer
to target time l In setting displays: Press the
button to scroll the setting.
[light] Button
l In any mode, press the button once to turn ON the EL
back light for about 3 seconds.
1
1.0 Introduction
Thank you for purchasing this model. Your
Watch includes 5 functional modes. They are
the Current Time Mode, UV Index Mode, Daily
Alarm Mode, Chronograph Mode and Timer
Mode.
This Watch equipped with an UV sensor that
measures UV radiation in terms of UV index.
This model also includes 2 UV index alarms.
In addition to the UV sensing, this model also
included current time, daily alarm,
chronograph and timer functions.
Your Watch is carefully designed and
produced, in order to utilize this feature of
your Watch, it is advisable to use the Watch in
conformity with the below notes:
! Read this manual before using the Watch.
! Avoid exposing your Watch to extreme
conditions for an unreasonable time.
! Avoid rough use or severe impacts to your
Watch.
! Store your Watch in a dry place when it is
not in use.
2
! It is recommended to have the battery
replacement done by a certified service
agency as this practice will
maintain the water resistance standard
on your Watch.
! Clean your Watch occasionally with a soft
moistened cloth. DO NOT expose the
Watch to strong chemicals such as
gasoline and alcohol, as they will damage
your Watch.
! DO NOT use this Watch for commercial or
professional purpose.
! Make sure that you fully understand the
functions and limitations of this Watch
before using it.
! Always compare the UV reading with the
one broadcasted by local weather station.
! Excessive exposure to UV radiation could
cause fatal harm to a human body, always
follow the 'Basic Sun Protection
Messages' by the World Health
Organization when you go out in the Sun.
WARNING
3
3.0 Functional Mode and Functional Display
! The Watch includes 5 functional modes. They
are the Normal Time Mode, UV Index Mode, Daily
[mode]
button
Current Time Mode
[mode]
button
UV Index Mode
[mode]
button
Daily Alarm Mode
Function Mode Selection Sequence
Timer Mode
Chronograph Mode
Alarm Mode, Chronograph Mode and Timer Mode.
! Every function mode may include one or more
than one function display, it provides
supplementary features to the corresponding
function mode.
To Switch among the 5 Functional Modes
[mode]
button
! To select among the ress
the [mode] button
To Switch among the Function Displays
! To select among the function displays, check the
coming chapters for the detail on how to switch
among different function displays.
[mode]
button
following the adjacent figure.
Function
Function
Display
Function Mode
Function Mode and Function Display
4
5 function modes, p
Function
Display
Display
4.0 Current Time Mode - Date Display & UV Index Display
Day of week
[start/stop] *2
Current UV
Index represents
by bar segments
UV Index
Alarm Icon
Peak UV Index represents
by bar segments
Peak UVI
Indicator
Date Display
[start/stop] *1
UV Index Display
(Current UV Index)
UV Index Display
(Peak UV Index)
Date
Current Time
(hour, minute,
second)
UV Index
Color Code
Current
UV Index
Current Time
(hour, minute,
second)
UV Index
Color Code
Peak
UV Index
Current Time
(hour, minute,
second)
! The Current Time Mode includes two function
displays. They are the Date Display and UV Index
Display.
Date Display
!The day of week and date appear on the upper
row of the display. The current time (hour, minute,
second) appears on the lower row of the display.
UV Index Display
! Either the Current UV Index info or Peak UV
Index info appears on the upper row.
Note 1: The Current UV Index info will appear in
this display if the Current UV Index has been
selected in the UV Index Mode.
Note 2: The Peak UV Index info will appear in this
display if the Peak UV Index has been selected in
the UV Index Mode.
Check the coming '5.4 Current & Peak UV Index
Display' Section for more detail on how to select
between Current UV Index and Peak UV Index.
! The UV Index Alarm Indicator and the Current
Time appear on the lower row of the display.
To Select between the Date Display and UV
Index Display
! Press the [start/stop] button once to select
between the Date Display and UV Index Display.
5.0 UV Index Mode - What Does the UV Index Mean
The UV Index is a measure of the solar UV
1
0.1
0.01
0.001
Erythemal Weighting Factor
0.0001
280 290 300 310 320 330 340 350 360 370 380 390 400
Wavelength (nm)
Erythemal Action Spectrum
Source: The International Commission on Illumination
!
(ultraviolet) intensity at the Earth's surface
relevant to the effect on human skin.
The skin-damaging UV radiation is governed by
!
the erythemal action spectrum, the black line in
the adjacent figure.
This spectrum has been adopted by the
!
International Commission on Illumination (CIE) to
represent the average skin response over the
solar UV spectrum.
Source:
! World Health Organization
! National Oceanic Atmospheric Administration
Hong Kong Observatory
!
Further information (28 August 2003):
1)www.who.int/peh-uv/uv_radiation.htm
2)www.cpc.ncep.noaa.gov/products/stratosphere/
uv_index/uv_information.html
3)www.hko.gov.hk/wxinfo/uvindex/english/
uvbginfo.htm
5
4.1 Current Time Mode - To Set the Current Time
! To set the current time and date, and their display
formats, press and hold the [mode] button for
about 2 seconds to select the setting display.
! When the '12Hr' or '24Hr' is flashing, press the
[start/stop] or [lap/reset] button to switch between
'12Hr' (12 hour format) and '24Hr' (24 hour
format).
! When the 'second' flashes on the display,
second
[mode]
minute
M-D/
D-M
[mode]
month
press [start/stop] or [lap/reset] button to reset
the second to zero.
! If one of the setting items (minute, hour, year,
month, day) is flashing, press the [start/stop] or
[lap/reset] button to scroll the setting (hold down
the button to scroll the setting faster).
! When the 'M-D' or 'D-M' is flashing, press the
[start/stop] or [lap/reset] button to switch between
'M-D' (month-day) and 'D-M' (day-month).
! When the above settings are finished, press and
hold the [mode] button for about 2 seconds to exit
the setting sequence.
! The setting display will change to Current Time
Mode automatically if no key-stoke has been
activated for about 3 minutes.
Current Time Mode
hold
hold
[mode]
[mode]
[start/stop]
scroll the
setting by
increment of 1
hold
[start/stop]
scroll
the setting
faster
[lap/reset]
scroll the
setting by
decrement of 1
hold
[lap/reset]
scroll
the setting
faster
reset Second to zero
'12' changes to '24';
'24' changes to '12'.
[start/stop]
or [lap/reset]
[mode]
[start/stop]
or [lap/reset]
[mode]
12/24
[mode]
hour
[mode]
[mode]
year
[mode]
day
Current Time
Setting Sequence
[start/stop] or [lap/reset]
'day-month' changes to 'month-day';
'month-day' changes to 'day-month'.
6
7
5.1 UV Index Mode - UV Index Range, Exposure Category and Color Code
! As categorized by the World Health Organization,
he UV Index
UV Index
Range
Exposure
Category
0 - 2
3 - 5
6 - 7
8 - 10
11
UV Radiation Exposure Categories
Source: World Health Organization
Low
Moderate Yellow
High
Very High
Extreme
Color
Code
Green
Orange
Red
Purple
t ranges between 0 and 11+. Each
UV index is matched with an exposure category
and color code. Check the adjacent table for more
detail on UV index range, exposure category and
color code.
! The lower the UV Index, the lower the UV
exposure category, the less likely the damage to
our body, while the higher the index, the higher
the UV exposure category, the more likely the
damage to our body.
! This Watch exhibits UV Index.
use of the exhibited to cross-check
his/her exposure level, and hence to taking the
appropriate protections to safeguard his/her body
from the potential harms of UV radiation.
Source:
! World Health Organization
! National Oceanic Atmospheric Administration
! Hong Kong Observatory
Further information (28 August 2003):
1) www.who.int/peh-uv/uv_radiation.htm
2)www.cpc.ncep.noaa.gov/products/stratosphere/
uv_index/uv_information.html
3) www.hko.gov.hk/wxinfo/uvindex/english/
uvbginfo.htm
UV Index
User can make
8
5.2 UV Index Mode - Basic Sun Protection Messages
!When you go out in the sun, World Health
1.
Check The
Latest
Uv Index
3.
Wear
Long-sleeved
and Loose-fitting
Clothing
5.
Wear UV
Blocking
Sunglasses
7.
Avoid
Tanning
Beds
2.
Stay Away
From The Sun
If the UV Index is
Very High
4.
Wear a
Broad Brim Hat or
Use An Umbrella
6.
Apply UV
Blocking Lotion
Regularly
8.
Protect Babies
and
Young Child
Organization (WHO) suggests taking the following
protective measures against UV radiation:
1) Limit exposure during midday hours.
2) Seek shade.
3) Wear protective clothing.
4) Wear a broad-brimmed hat to protect the
eyes, face and neck.
5) Protect the eyes with wrap-around-design
sunglasses or sunglass with side panels.
6) Use and reapply broad-spectru sunscreen
of sun protection factor (SPF) 15+ liberally.
7) Avoid tanning beds.
8) Protect babies and young children.
Source:
!
World Health Organization
! Hong Kong Observatory
Further information (28-08-2003):
1) www.who.int/peh-uv/uvindex.htm
2) www.hko.gov.hk/wxinfo/uvindex/english/
euvtoday.htm
5.4 UV Index Mode - Current & Peak UV Index Display
! The UV Index Mode includes two functional
[start/stop]
UV Index
Color Code
Current
UV Index
Peak
UV Index
displays. They are the Current UV Index Display
and Peak UV Index Display.
Current UV Index Display
! The Current UV Index Bar Segment displays on
the upper row of the display. The Cu rr en t UV
Index and UV Index Alarm Indicator display on the
lower row of the display.
Note: When this display has been selected, and
then the watch returns to Current Time Mode: the
Current UV Index Bar Segment and Current UV
Index will display if UV Index Display is selected.
Peak UV Index Display
! The Peak UV Index Bar Segment appears on the
upper row of the display. The Peak UV Index and
the UV Index Alarm Indicator appear on the lower
row of the display.
Note: When this display has been selected, and
then the watch returns to Current Time Mode: the
Peak UV Index Bar Segment and Peak UV Index
will display if UV Index Display is selected.
To Select between the Current and Peak UV
Index Display
! Press the [start/stop] button once to select
between the Current UV Index Display and Peak
UV Index Display.
Current UV Index
bar segment
Current UV Index
Indicator
UV Alarm
Indicator
Peak UV Index
bar segment
Peak UV Index
Indicator
UV Index Mode
(Current UV Index Display)
UV Index Mode
(Peak UV Index Display)
9
5.3 UV Index Mode - How UV is Sensing
! This Watch uses a built-in UV sensor to detect
ambient Ultraviolet radiation which is then
converted to UV Index.
! The UV Sensor is the small spot that is located
on the lower part of the dial. Check the previous
'2.0 Parts and Its Functions' Section for the
detail on the location of the UV Sensor.
Notes to UV Measurement
! To make an accurate result, employ the
following steps when taking a UV measurement:
1) Position the UV Sensor directly to the source
of radiation, for example the Sun.
2) Avoid sheltering the UV Sensor unintentionally.
3) Rotate the Watch slowly and search for the
maximum reading.
4) Clean the lens of the Watch with a soft
cloth before the measurement, this practice
allows NO dirt or dust sheltering the UV sensor.
! During the first five minutes of UV Index Mode, the
Watch needs two seconds to get a reading.
! After the first five minutes of UV Index Mode, the
Watch needs 10 seconds to get a reading.
Ultraviolet Radiation
How UV is Sensing
1.
Position the
UV Sensor
directly to
the source
3.
Rotate the
Watch Slowly
and Search for
Maximum Reading
Notes to UV Measurement
the Sun
UV Sensor
UV Index
the Watch
2.
Avoid Shelter
the UV Sensor
Unintentionally
4.
Clean the lens
of the Watch with
a Soft Cloth before
the measurement
10
11
5.5 UV Index Mode - How to Read UV Index Bar Segment & Color Code
2 Bar Segments; hence UV Index = 2
5 Bar Segments; hence UV Index = 5
UV Index Bar Segment
The color code categorized by
the World Health Organization
Green
Yellow
Orange
(0-2)
(3-5)
Green
Yellow
UV Index = 5
UV Index Bar Segment & Color Code
Red
(6-7)
(8-10)
Red
UV Index Color Code
Color Code: Yellow
Purple
(11+)
Purple
UV Index Bar Segment
! To provide user a quick concept about the Current
and Peak UV Indexes, this Watch exhibits them
by displaying a different number of bar segments on
the upper row of the display.
! Whether the Current or Peak UV Index Bar
Segment appear on the upper row of the display,
one exhibited bar segment equals one UV Index.
For example, if there are 5 bar segments
displayed on the upper row of the display, the UV
Index is 5.
UV Index Color Code
! As categorized by the World Health Organization,
each UV index is matched with a color code.
Check the previous '5.1 UV Index Range,
Exposure Category and Color Code' Section for
more detail on the Color Code.
! To provide user a quick concept about the color
code of the current and peak UV index, this
Watch also printed green, yellow, red (stand for
orange and red) and purple color on the display.
!
Read the color code of a UV index by checking
the color background of the right-most exhibited
UV index bar segment. For example, if there are 5
bar segments displayed on the upper row of the
display, the color code is Yellow.
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