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NTech Seawatch UV Master Manual

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! 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.
Current
UV Index
Peak
UV Index
UV Index
Color Code
UV Index
Color Code
[start/stop]
*1
Date Display
UV Index Display
(Current UV Index)
UV Index Display
(Peak UV Index)
Day of week
Date
Current Time
(hour, minute,
second)
Current Time
(hour, minute,
second)
Current Time
(hour, minute,
second)
UV Index
Alarm Icon
Peak UVI
Indicator
Current UV
Index represents
by bar segments
by bar segments
[start/stop] *2
4.0 Current Time Mode - Date Display & UV Index Display
Peak UV Index represents
-
!
!
!
Source:
! World Health Organization
! National Oceanic Atmospheric Administration
!
The UV Index is a measure of the solar UV
(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.
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
( )
1
5.0 UV Index Mode What Does the UV Index Mean
Wavelength nm
Erythemal Weighting Factor
0.1
0.01
0.001
0.0001
280 290 300 310 320 330 340 350 360 370 380 390 400
Erythemal Action Spectrum
Source: The International Commission on Illumination
5
7
-
- To Set the Current Time
year
M-D/
D-M
day
hour
holdhold
! As categorized by the World Health Organization,
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.
UV Index
Source:
! World Health Organization
! National Oceanic Atmospheric Administration
he UV Index
User can make
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.
! 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
! 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 ' ' flashes on the display,
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.
'12' changes to '24';
'24' changes to '12'.
reset Second to zero
scroll
faster
scroll
faster
Low
hold
hold
Current Time
Setting Sequence
UV Radiation Exposure Categories
Source: World Health Organization
11
5.1 UV Index Mode UV Index Range, Exposure Category and Color Code
4.1 Current Time Mode
scroll the
setting by
decrement of 1
scroll the
setting by
increment of 1
12/24
minute
month
second
[mode] [mode]
Current Time Mode
second
[mode]
[mode]
[mode]
[mode]
[start/stop]
or [lap/reset]
[start/stop]
or [lap/reset]
[start/stop] or [lap/reset]
[mode]
[mode]
[mode]
[mode]
the setting
the setting
UV Index
Range
Color
Code
Exposure
Category
Extreme
Purple
8 - 10
Very High
Red
6 - 7
High
Orange
3 - 5
Moderate Yellow
0 - 2
Green
[start/stop]
[lap/reset]
[start/stop]
[lap/reset]
'day-month' changes to 'month-day';
'month-day' changes to 'day-month'.
6 8
2


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