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5.6 UV Index Mode
Lower UV Index Alarm
represents by the
flashing bar segment
Current UV Index
bar segments
UV Index
Alarm Icon
UV Index Mode
(Current UV Index Display)
UV Index
the whole UV Index
Alarm Indicator flash
the Upper
UV Index
'HI' Alarm
the 'Ray' of the UV Index
Alarm Indicator flash
the Lower
UV Index
'LO' Alarm
the UV Index Alarm
Indicator appear steadily
0
The UV Index Alarm -
Alarm Sound and UV Alarm Indicator
5.7 UV Index Mode
increment of 1
[start/stop]
UV Index Mode
(Current UV Index Display)
hold
hold
[mode]
[mode]
'LO' Lower
[lap/reset]
decrement of 1
L o w U V I
n d e x A la r m
- UV Index Alarm
! To prevent user getting UV over-exposure, this
Upper UV
Watch includes two UV Index Alarms. They are
Index Alarm
the Upper UV Index Alarm and Lower UV Index
represents by
the flashing
Alarm.
bar segment
! These UV Index Alarms can be set separately by
the user. Check the coming '5.7 Setting the Upper
and Lower UV Index Alarms' Section for more
Current
detail on how to set the UV Index Alarms.
UV Index
! When one UV Index Alarm has been set, the
corresponding bar segment will be flashing on
display.
UV Index Alarm Sound
! In all of the modes: Whenever the Current UV
Index is equal to or larger than the Upper or
Lower UV Index Alarm, the Watch starts beeping
'beep'
for about 10 seconds.
for 10
UV Index Alarm Indicator
seconds
! In all of the UV Index displaying modes: When the
Current UV Index equal to or larger than the
'beep'
Lower UV Index Alarm, the 'Rays' of the UV Index
for 10
Alarm Indicator starts flashing on the display.
seconds
! In all of the UV Index displaying mode: When the
Time
Current UV Index equal to or larger than the
Upper UV Index Alarm, the whole UV Index Alarm
Indicator starts flashing on the display.
13
- Setting the Upper and Lower UV Index Alarms
! To set the Upper, Lower UV Index Alarm and
calibrate the UV Index, press and hold the [mode]
button for about 2 seconds to select the setting
display.
scroll the
scroll
! When the 'LO' indicator appear: Press the
setting by
the setting
faster
[start/stop] or [lap/reset] button to select the
hold
Lower UV Index Alarm setting among 0 to 25
[start/stop]
(select ' -- ' to turn OFF the alarm) by scrolling of
1 (hold down the button to scroll the setting faster).
[mode]
! When the 'HI' indicator appear: Press the
'HI' Upper
UV Index
UV Index
[start/stop] or [lap/reset] button to select the
Alarm
Alarm
Upper UV Index Alarm setting among 0 to 25
(select ' -- ' to turn OFF the alarm) by scrolling of
[mode]
1 (hold down the button to scroll the setting faster).
[mode]
Note: To control the UV exposure by a two-level
'CAL'
alarm, set a smaller value (for example: 6) for the
Calibration
Lower UV Index Alarm, and set a larger value (for
UV Index Mode
example: 10) for the Upper Index Alarm.
Setting Sequence
! When the above settings finished, either press
hold
[lap/reset]
and hold the [mode] button for about 2 seconds
to exit the setting sequence or press the [mode]
scroll
scroll the
the setting
setting by
button once to calibrate the UV Index.
faster
! To calibrate the UV Index, check the coming '5.8
Precautions to UV Index Calibration', '5.9 To
Determine the Calibration Factor (CAL)' and '5.10
Calibrating the UV Index' Sections for more detail
on the UV Index Calibration.
14
5.8 UV Index Mode
15-minute mean
UV Index Broadcasted
by Weather Station
the
5.9 UV Index Mode
- Precautions to UV Index Calibration
The Watch's UV sensor has been calibrated
!
in the factory. The most possible cause
May
for deviation is the Ozone thickness,
Instantaneous
NOT
UV Index
UV Index
difference between the place of use and cali-
equal to
bration of the Watch. For normal usage, you
UV Index Exhibited
should not need to calibrate the Watch again.
by the Watch
! DO NOT attempt to calibrate the UV index unless
The Time Frame Effect on UV Index
you have the following items to determine the
Calibration Factor (CAL):
1) Standard UV generator or
the Sun
2) Correct immediate local UV Index
DO NOT use the UV Index broadcasted by the
!
Ultraviolet
local weather station as the correct UV index, it
Radiation
may NOT the correct one at your place when you
calibrating your Watch, this is because:
1) Weather stations usually broadcast the 15-
minute mean UV Index to public. It is different
Location A
Location B
from the instantaneous UV radiation that your
(with an Higher
(with a Lower
Watch is now sensing.
UV Index)
UV Index)
2) Cloud condition affects UV Index. Hence, the
UV Index at your location may not be
identical to the one at weather station if the two
cloud conditions are not alike.
The Cloud Effect on UV Index
Check the coming '5.9 To Determine the
!
Calibration Factor (CAL)' Sections for more detail
on how to determine CAL.
15
- To Determine the Calibration Factor (CAL)
! Determine the CAL by using the following rules:
1)Correct UV Index: The UV index produced
Standard UV Generator
by a standard UV generator or other similar
(Correct UV Index)
means.
Ultraviolet
2)Exhibited UV Index: The UV Index exhibited by
Radiation
the Watch when it is exposed to the previous
standard UV generator.
UV Sensor
3)ADJ: The percentage change of UV Index.
Hence ADJ = ((Correct UV Index - Exhibited
Exhibited
UV index) / Exhibited UV index) X 100%
UV Index
the Watch
4)Calibration Factor (CAL): The value that to be
selected for the calibration. CAL= 25 + ADJ.
How Exhibited UV Index
Example 1: To adjust the UV Index from 4.8
is obtained for determent of CAL
(Exhibited UV index) to 4.0 (Correct UV Index).
! ADJ = ((4.0 - 4.8) / 4.8) X 100 = -17;
! CAL= 25 + ADJ;
! Hence, CAL=25 -17 = 8.
Example 2: To adjust the UV Index from 7.8
(Exhibited UV index) to 8.0 (Correct UV Index).
! ADJ = ((8.0 - 7.8) / 7.8) X 100 = 3;
! CAL= 25 + ADJ;
! Hence, CAL=25 +3 = 28.
!
To resume the Watch to its original setting
for sensing UV radiation, select the default
value (25) as the CAL during the calibration.
16
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