Module No. 2030
2030-1
GETTING ACQUAINTED
TIMEKEEPING MODE
Congratulations upon your selection of this CASIO watch. To get the most out
of your purchase, be sure to read this manual carefully and keep it on hand
for later reference when necessary.
In addition to normal timekeeping, use the
Timekeeping Mode to set the current time and
date.
Moon phase indicator
Day of week
•
The Moon phase indicator shows the
current Moon phase for the currently
selected time zone, in accordance with the
current data as kept in the Timekeeping
Mode.
Tide graph
Warning!
•
•
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.
•
The tide graph shows tidal movements for
the current date in accordance with the
current time as kept in the Timekeeping
Mode.
The longitude, lunitidal interval, Moon phase indicator, and tide graph
data that appears on the display of this watch is not intended for
navigation purposes. Always use proper instruments and resources to
obtain data for navigation purposes.
Hour : Minutes
•
•
This watch is not an instrument for calculating low tide and high tide
times. The Tide Graph of this watch is intended to provide a reasonable
approximation of tidal movements only.
CASIO COMPUTER CO., LTD. assumes no responsibility for any loss,
or any claims by third parties that may arise through the use of this
watch.
Important!
Seconds
PM indicator
The watch cannot produce correct Moon
phase or tide graph data unless the
Timekeeping Mode current time and date
settings, as well as the GMT differential,
longitude, and lunitidal interval settings are all
be correct.
Month – Day
About This Manual
Resetting the Seconds Count to Zero
1. In the Timekeeping Mode, hold down A until the seconds digits start to
flash, which indicates the setting screen.
•
•
Button operations are indicated using the
letters shown in the illustration.
Each section of this manual provides you
with the information you need to perform
operations in each mode. Further details
and technical information can be found in
the “REFERENCE” section.
2. Press D to reset the seconds count to 00.
•
Pressing D while the seconds count is in the range of 30 to 59 resets the
seconds to 00 and add 1 to the minutes. In the range of 00 to 29, the
minutes count is unchanged.
3. Press A three times to exit the setting screen.
(Light)
Setting the Time and Date
1. In the Timekeeping Mode, hold down A
until the seconds digits start to flash, which
indicates the setting screen.
While the seconds digits are flashing, press
D to reset the seconds count to 00.
2. Press C to move the flashing in the
sequence shown below to select other
settings.
GENERAL GUIDE
•
•
•
Press C to change from mode to mode.
Pressing D in the Timekeeping Mode directly enters the Thermo Scanner
Mode.
•
In any mode, press L to illuminate the display.
Timekeeping Mode
Thermo Scanner Mode
12/24-Hour
Format
Seconds
Minutes
Hour
Press D.
Press C.
Day
Month
Year
3. While the hour, minutes, year, month, or day setting is flashing, use D (+)
and B (–) to change it.
•
When the 12/24-hour setting is flashing, press D to toggle between
12-hour (12H) and 24-hour (24H) timekeeping.
Press C.
L
4. Press A three times to exit the setting screen and return to the current
time screen.
•
The day of the week is automatically displayed in accordance with the date
(year, month, and day) settings.
Site Mode
•
•
The year can be set in the range of 1995 to 2039.
The watch’s built-in full automatic calendar automatically makes
allowances for different month lengths and leap years. Once you set the
date, there should be no reason to change it except after you have the
watch’s battery replaced.
Setting the Daylight Saving Time and GMT differential
•
Daylight Saving Time (DST) automatically advances the time setting by
one hour from Standard Time. Whether you should use Daylight Saving
Time depends on the geographic area where you are currently located.
GMT differential is the difference between the time in the displayed time
and Greenwich Mean Time (GMT).
L
•
Moon Data Mode
Alarm Mode
To set the Daylight Saving Time and GMT differential
1. In the Timekeeping Mode, hold down A
until the seconds digits start to flash, which
indicates the setting screen.
DST
2. Press A again to move the flashing to the
DST On/Off setting.
3. Press D to toggle the Daylight Saving
Time (ON) and standard time (OFF).
4. Press C to move the flashing to the GMT
differential setting, and then use D (+) and
B (–) to change it.
GMT differential
•
•
Each press of C moves the flashing between the DST On/Off setting and
the GMT differential setting.
The “CITY DATA LIST” provides GMT differential information for a number
of time zones, cities and longitudes around the world.
5. Press A twice to exit the setting screen and return to the current time
screen.
•
The DST indicator appears on the display to indicate that daylight saving
time is turned on.
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2030-3
6. Press C to move the flashing to the first
character of the site name.
7. Input the site name you want.
Viewing the Moon Age for a Particular Date
Site name
1. In the Moon Data Mode, press A to
Year Month – Day
display the Moon Age Screen.
•
Use D and B to cycle through characters
at the current input position in the sequence
shown below.
•
The initial default date for the Moon Age
Screen when you enter the Moon Data
Mode is the current date as kept in the
Timekeeping Mode.
Press D.
Press B.
Ato Z
2. Use D (+) and B (–) to change the date
setting.
(space)
•
•
You can select any date from 1995 to 2039.
The Moon age appears a few seconds after
you select a date.
_
.
0to 9
•
When the character you want is shown, press C to move the flashing to
the right and input the next character.
Viewing Tide Data during a Particular Timeframe
•
•
To delete a character, input a space.
1. In the Moon Data Mode, press A to
display the Moon Age Screen.
2. Set the date whose tide data you want to
view.
You can input up to eight characters. Inputting eight characters causes the
flashing to return to the DST On/Off setting. If your site name has fewer
than eight characters, you must press C to skip past all the unused
spaces in order to move the flashing to the DST On/Off setting.
•
The initial default date for the Moon Age
Screen when you enter the Moon Data
Mode is the current date as kept in the
Timekeeping Mode.
8. After the DST On/Off, GMT differential, and site name settings are the
way you want, press A and the longitude setting starts to flash on the
display.
•
Pressing C moves the flashing between the settings in the sequence
shown below.
Timeframe
•
•
Use D (+) and B (–) to change the date
setting.
You can select any date from 1995 to 2039.
Lunitidal Interval
3. Press A to switch to the Tide Data Screen.
4. Set the timeframe for which you want to display tide data.
Longitude
Hours
Minutes
•
•
Use D (+) and B (–) to change the time setting in one-hour steps.
The tide data appears in the tide graph.
9. While the longitude setting is flashing, use
D (+) and B (–) to change it.
Longitude can be specified in the range of
179°W to 180°E, in 1-degree steps.
•
ALARM MODE
You can set a Daily Alarm that sounds at the
Alarm on indicator
same time each day, while it is turned on. You
can also turn on an Hourly Time Signal that
Current time
Longitude
causes the watch to beep twice every hour on
the hour.
10.Press C to move the flashing to the
lunitidal interval hours setting, and then use
D (+) and B (–) to change it.
11.Press C to move the flashing to the
lunitidal interval minutes setting, and then
use D (+) and B (–) to change it.
12.After everything is the way you want, press
A to exit the setting screen.
Hours : Minutes
Setting the Alarm Time
1. In the Alarm Mode, hold down A until the
hour digits of the alarm time start to flash,
which indicates the setting screen.
This operation automatically turns on the
Daily Alarm.
Hour : Minutes
•
Hourly time signal
on indicator
2. Press C to move the flashing in the
sequence shown below to select other
settings.
Hour
Minutes
MOON DATA MODE
3. While the hour or minutes setting is flashing, use D (+) and B (–) to
The Moon Data Mode lets you view the Moon age on any date and tide data
during a particular timeframe for the site currently selected in the Site Mode.
change it.
•
When setting the alarm time using the 12-hour format, take care to set the
time correctly as am (A indicator) or pm (P indicator).
Displaying Moon Data
The Moon Data Mode has two screens: a Moon Age Screen and a Tide Data
4. Press A to exit the setting screen.
Screen. Press A to toggle between the two screens.
Daily Alarm Operation
The alarm sounds at the preset time each day for about 20 seconds, or until
you stop it by pressing any button.
Moon Age Screen
Tide Data Screen
Month – Day
Tide graph
To test the alarm
In the Alarm Mode, hold down D to sound the alarm.
Site name
Press A.
Turning the Daily Alarm and Hourly Time Signal on
and off
In the Alarm Mode, press B to cycle through the on and off settings as
shown below.
Moon phase
indicator
Moon age
Timeframe
•
•
The data that appears on the screen in the Moon Data Mode is for the site
that is currently selected in the Site Mode. This means you have to enter
the Site Mode, select the site whose data you want to view, and then enter
the Moon Data Mode to view it.
If the site name is longer than four characters, the display alternates
between the first four characters and the remaining characters.
[Alarm ON Indicator / Hourly Time Signal ON Indicator]
ALM I
S I G I
ALM
S I G
ALM I
S I G
ALM
S I G I
Alarm On
Signal On
Alarm Off
Signal Off
Alarm On
Signal Off
Alarm Off
Signal On
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2030-4
•
•
The left-right orientation of the Moon phase is reversed when viewing from
BACKLIGHT
the Southern Hemisphere or from a point near the equator.
The Moon phase indicator displayed in the Timekeeping Mode and Alarm
Mode is based on Timekeeping Mode (home site) data. The indicator
displayed in the Site Mode and Moon Data Mode is based on data for the
site that is currently selected in the Site Mode. There is no Moon phase
indicator in the Thermo Scanner Mode.
The backlight uses an EL (electro-luminescent)
panel that causes the entire display to glow for
easy reading in the dark. The watch’s auto light
switch automatically turns on the backlight
when you angle the watch towards your face.
•
The auto light switch must be turned on
(indicated by the auto light switch on
indicator) for it to operate.
See “Backlight Precautions” for other
important information about using the
backlight.
Moon Phases and Moon Age
The Moon goes through a regular 29.53-day cycle during which it appears to
wax and wane due to how the Sun illuminates the Moon and the relative
positioning of the Earth, Moon, and Sun. The greater the angular distance
between the Moon and the Sun,* the more we see illuminated.
•
Auto light switch on indicator
*
The angle to the Moon in relation to the direction at which the Sun is visible
from the Earth.
Turning on the Backlight Manually
The Moon age indicates the number of days from the New Moon to any
particular phase. It is normally calculated using either noon or midnight as a
reference point. This watch calculates the Moon age based on the angular
distance of the Moon at noon, which can result in an error of 1 day. Because
of this, the appearance of the Moon phase indicator may be different from
that of the actual Moon.
In any mode, press L to illuminate the display for about two seconds.
•
The above operation turns on the backlight regardless of the current auto
light switch setting.
The watch uses the following formula to calculate Moon age.
Moon Age (days) = 29.53 × (Moon angular distance / 360°)
About the Auto Light Switch
Turning on the auto light switch causes the backlight to turn on for about two
seconds, whenever you position your wrist as described below in any mode.
Tide Graph
Moving the watch to a position that is parallel to the ground and then tilting
it towards you more than 40 degrees causes the backlight to light.
The black bar on the watch’s tide graph indicates the current tide.
More
Parallel to
than
ground
40°
High tide
Low tide
High tide
•
The tide graph displayed in the Timekeeping Mode and Alarm Mode is
based on Timekeeping Mode (home site) data. The graph displayed in the
Site Mode and Moon Data Mode is based on data for the site that is
currently selected in the Site Mode. There is no tide graph in the Thermo
Scanner Mode.
Warning!
•
Never try to read your watch when mountain climbing or hiking in areas
that are dark or in areas with poor footing. Doing so is dangerous and
can result in serious personal injury.
Tidal Movements
Tides are the periodic rise and fall of the water of oceans, seas, bays, and
other bodies of water caused mainly by the gravitational interactions between
the Earth, Moon and Sun. Tides rise and fall about every six hours. The tide
graph of this watch indicates tidal movement based on the Moon’s transit
over the meridian and the lunitidal interval. The lunitidal interval differs
according to your current location, so you must specify a lunitidal interval in
order to obtain the correct tide graph readings.
•
Never try to read your watch when running where there is danger of
accidents, especially in locations where there might be vehicular or
pedestrian traffic. Doing so is dangerous and can result in serious
personal injury.
Never try to read your watch when riding on a bicycle or when operating
a motorcycle or any other motor vehicle. Doing so is dangerous and can
result in a traffic accident and serious personal injury.
When you are wearing the watch, make sure that its auto light switch
is turned off before riding on a bicycle or operating a motorcycle or
any other motor vehicle. Sudden and unintended operation of the
auto light switch can create a distraction, which can result in a traffic
accident and serious personal injury.
•
•
Lunitidal Interval
Theoretically, high tide is at the Moon’s transit over the meridian and low tide is
about six hours later. Actual high tide occurs somewhat later, due to factors
such as viscosity, friction, and underwater topography. Both the time differential
between the Moon’s transit over the meridian until high tide and the time
differential between the Moon’s transit over the meridian until low tide are
known as the “lunitidal interval.” When setting the lunitidal interval for this
watch, use the time differential between the Moon’s transit over the meridian
until high tide.
To turn the auto light switch on and off
In the Timekeeping Mode, hold down B for two seconds to turn the auto light
switch on (
The auto light switch on indicator (
while the auto light switch is turned on.
displayed) and off (
not displayed).
•
) is on the display in all modes
Auto Return Features
•
If you leave a screen with flashing digits or a cursor on the display for two
or three minutes without performing any operation, the watch automatically
saves anything you have input up to that point and exits the setting screen.
If you leave the watch in any mode for about three minutes without
performing any operation, it automatically changes to the Timekeeping
Mode.
REFERENCE
•
This section contains more detailed and technical information about watch
operation. It also contains important precautions and notes about the various
features and functions of this watch.
Data and Setting Scrolling
The B and D buttons are used in various modes and screens 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.
Moon Phase Indicator
The Moon phase indicator of this watch indicates the current phase of the
Moon as shown below.
12-hour/24-hour Timekeeping Formats
Graph
The 12-hour/24-hour timekeeping format you select in the Timekeeping Mode
is also applied in all modes.
Moon Age
0, 1, 29 2–5
6–9
First
Quarter
(Waxing)
10–13 14–16 17–20 21–24 25–28
•
With the 12-hour format, the P (PM) indicator appears to the left of the hour
digits for times in the range of noon to 11:59 p.m. and the A (AM) indicator
appears to the left of the hour digits for times in the range of midnight to
11:59 a.m.
New
Moon
Full
Last
Moon Phase
Moon
Quarter
(Waning)
•
With the 24-hour format, times are indicated in the range of 0:00 to 23:59,
without any indicator.
•
•
The light part of the Moon phase indicator shows the part of the Moon that
is visible in the sky during each particular phase.
The Moon phase indicator shows the Moon as viewed at noon from a
position in the Northern Hemisphere looking south. Note that at times the
image shown by the Moon phase indicator may differ from that of the
actual Moon in your area.
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2030-5
Measurement Range
Site Mode
The area measured by the Thermo Scanner increases the further you are
from the object. Make sure you are close enough to the object so the area
measured remains within the surface area of the object.
Also, remember that the temperature value displayed by the watch is the
average temperature for the entire area measured.
•
The current time in all Site Mode sites is calculated in accordance with the
Greenwich Mean Time (GMT) differential for each site, based on the
current time setting in the Timekeeping Mode.
GMT differential is calculated by this watch based on Universal Time
Coordinated (UTC) data.
•
Backlight Precautions
•
•
The electro-luminescent panel loses illuminating power after very long use.
The illumination provided by the backlight may be hard to see when viewed
under direct sunlight.
•
•
The watch will emit an audible sound whenever the display is illuminated. It
does not indicate malfunction of the watch.
The backlight automatically turns off whenever an alarm sounds.
Too far
Best
Auto light switch precautions
•
Avoid wearing the watch on the inside of your wrist. Doing so causes the
auto light switch to operate when it is not needed, which shortens battery
life. If you want to wear the watch on the inside of your wrist, turn off the
auto light switch feature.
Diameter of the area measured can be approximated by the formula:
d (diameter) = Distance × 0.78 (cm)
Diameter of
Area Measured
Diameter of
Area Measured
Distance
Distance
•
The backlight may not light if the face of the
watch is more than 15 degrees above or
below parallel. Make sure that the back of
your hand is parallel to the ground.
The backlight turns off in about two
seconds, even if you keep the watch
pointed towards your face.
More than 15 degrees
too above
10
20
30
7.8
15.6
23.4
50
80
39.0
62.4
78.0
100
•
Measurement Range: –20 to 200°C / –4 to 392°F
Measurement Units: 0.1°C (10.1 to 39.9°C) / 0.2°F (50.2 to 103.8°F)
1°C (–20 to 10°C and 40 to 200°C)
1°F (–4 to 50°F and 104 to 392°F)
•
Static electricity or magnetic force can interfere with proper operation of the
auto light switch. If the backlight does not light, try moving the watch back
to the starting position (parallel with the ground) and then tilt it back toward
you again. If this does not work, drop your arm all the way down so it
hangs at your side, and then bring it back up again.
Under certain conditions the backlight may not light until about one second
after you turn the face of the watch towards you. This does not necessarily
indicate malfunction of the backlight.
Measurement Time: Approximately 3 seconds
Emissivity
The intensity of infrared radiation that an object emits (due to the material it is
made out of and its surface properties) is called its emissivity. Fixed
emissivity values have been established for a number of objects. Emissivity is
expressed as a value that represents the ratio of the radiation intensity of a
real body to the radiation intensity of a blackbody*, which is 1.
•
•
In order to protect against running down the battery, the auto light switch is
automatically turned off approximately six hours after you turn it on.
*
blackbody: A total absorber that absorbs all the energy that falls upon it.
Generally speaking, the emissivity of human skin, wood, and paper is high,
while that of aluminum, and other metals is low. Metals whose surfaces are
oxidized (non-lustrous finish) tend to have high emissivity, while polished
(lustrous) surfaces tend to have low emissivity.
Thermo Scanner Mode
Measurement Precautions
•
The temperature reading produced by the Thermo Scanner indicates only
the surface temperature and not the actual temperature of the object.
Measuring the temperature of your hand, for example, displays the
temperature of your skin surface, not your body temperature. Note that
surface temperature is affected by surrounding temperature and other
factors.
Note
•
Low emissivity objects (especially those with a lustrous, metallic finish)
tend to reflect infrared radiation emitted by surrounding objects, and so
accurate temperature readings are impossible.
•
For more accurate Thermo Scanner readings from a particular type of
object, measure the temperature of the object using another measurement
device you know to be accurate, and then use the Thermo Scanner to take
a reading of the object. Next, adjust the emissivity value until the reading
produced by the Thermo Scanner is the same as the other instrument.
The “EMISSIVITY VALUES” provides emissivity values for a number of
different objects. Note that these values are for reference purposes only.
Other factors can also affect emissivity.
•
Accurate measurements are not possible for the following types of objects.
Type of Object
Description
Metal objects, objects coated
with shiny paint (gold, silver,
etc.) and other objects with
low emissivity
•
•
Such objects reflect surrounding infrared
radiation.
Measurements are possible for dull
painted metal and dark metal with no
visible shininess.
•
To change the temperature units
1. In the Thermo Scanner Mode, hold down
Flame
•
•
Temperatures are too high
Some infrared radiation may also be
picked up from background objects.
A until the emissivity value start to flash,
which indicates the setting screen.
2. Press C to move the flashing to the unit
setting (°C or °F).
3. Press D toggle between the two settings.
4. Press A to exit the setting screen.
Air or gas
•
The Thermo Scanner can pick up infrared
radiation from solids and liquids only.
•
•
•
•
•
Take care to keep the sensor lens free of dirt, dust, chemicals, and other
foreign matter. A dirty or damaged lens makes accurate measurement
impossible.
Leaving the watch in a closed automobile under direct sunlight or
otherwise subjecting it to high temperatures can cause the sensor to
overheat, which makes accurate measurement impossible.
Fluctuation of the temperature of the watch itself (due to taking the watch
outdoors on a cold day, etc.) can cause unstable sensor temperature,
making accurate measurement impossible.
Avoid keeping the watch too close for long periods to objects that
continuously generate high heat (like a hot plate), which can cause
overheating of the watch.
Any of the following causes the measurement operation to be cancelled:
changing to another mode, sounding of an alarm or hourly time signal,
turning on the backlight, display of the emissivity value, changing the
emissivity value setting, measurement error.
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ERR.Messages
2030-6
Troubleshooting
PRE-PROGRAMMED SITE DATA
GMT
Differential
Lunitidal
Interval
Site Name
Location
Longitude
The following shows the error messages that can appear and what you need
to do to correct the situation.
TOKYO
PALAU
GUAM
GBR
Tokyo
140°E
134°E
145°E
146°E
+9.0
5:20
Error
Message
Meaning
Cause
What to do
Palau
Guam
+9.0
7:30
ERR.
Overheat
Watch temperature
is outside the range sunlight and other areas where
of –20°C to 60°C
(–4°F to 140°F).
Keep watch out or direct
+10.0
7:40
NO. 1 error
Great Barrier Reef,
Cairns
+10.0
9:40
it is exposed to temperature
extremes.
CHRISTMS Christmas Island
157°W
156°W
110°W
77°W
57°E
+14.0
–10.0
–7.0
4:00
4:00
8:40
7:30
0:50
0:10
ERR.
Out of
Measured
temperature is
outside the range of are within the allowable range.
–20°C to 200°C
(–4°F to 392°F).
Perform measurements only on
objects whose temperatures
HAWAII
BAJA CA
BAHAMAS
Kona, Hawaii
Baja, California
Bahamas
NO. 2 range
error
–5.0
MAURITIS Mauritius
MALDIVES Maldives
+4.0
+5.0
ERR.
Abnormal Sudden rise or fall
Wait for about 10 minutes to
allow watch temperature to
stabilize.
74°E
NO. 3 tempera-
of watch tempera-
ture.
Based on data as of August 1999.
ture error
ERR.
Sensitiv-
Sensor sensitivity
could not be
calibrated correctly.
Cancel the measurement
(press C to return to the
Timekeeping Mode) and try
again.
NO. 4 ity error
CITY DATA LIST
ERR.
Battery
Battery power is
low
Contact your CASIO Service
Center to have the battery
replaced.
City
ANCHORAGE
BANGKOK
BOSTON
BUENOS AIRES
CASABLANCA
DAKAR
HAMBURG
HONG KONG
HONOLULU
JAKARTA
GMT Differential
Longitude
Lunitidal Interval
5:40
NO. 5 error
–9.0
+7.0
–5.0
–3.0
+0.0
+0.0
+1.0
+8.0
–10.0
+7.0
+3.0
+5.0
–5.0
+0.0
+0.0
–8.0
+8.0
+10.0
–5.0
+11.0
–11.0
–5.0
–10.0
–3.0
–8.0
+8.0
+8.0
+10.0
–8.0
+12.0
150°W
100°E
71°W
58°W
8°W
17°W
10°E
114E
158°W
107°E
39°E
67°E
77°W
9°W
4:40
Watch temperature
is too cold
The error should clear when the
watch returns to normal
temperature. Try measuring
again after the watch returns to
normal temperature.
11:20
6:00
1:30
7:40
4:50
9:10
3:40
Thermo Scanner Measured Value Problems
Problem
Possible Cause
What to do
0:00
Measured value
is considerably
higher or lower
than the actual
temperature of
the object.
Wrong emissivity value
setting
Set the emissivity value that
matches the object.
JEDDAH
KARACHI
6:30
10:10
5:20
LIMA
LISBON
Dirty sensor lens
Rinse the lens with cold or
warm water and then wipe off
all remaining moisture with a
cotton swab.
2:00
LONDON
0°E
1:10
LOS ANGELES
MANILA
118°W
121°E
145°E
80°W
166°E
171°W
80°W
150°W
43°W
122°W
121°E
104°E
151°E
123°W
175°E
9:20
10:30
2:10
Scratched sensor lens
Damaged sensor
Contact your CASIO Service
Center.
MELBOURNE
MIAMI
7:30
Large differences
between
temperatures or
the same
temperature value
for various
objects
Sensor malfunction
Contact your CASIO Service
Center.
NOUMEA
8:30
PAGO PAGO
PANAMA CITY
PAPEETE
RIO DE JANEIRO
SEATTLE
6:40
3:00
0:10
3:10
4:20
SHANGHAI
SINGAPORE
SYDNEY
VANCOUVER
WELLINGTON
1:20
10:20
8:40
Flashing (Emissivity) Indicator during a Thermo Sensor
Measurement
Check the current setting and change it if necessary. If the setting is correct,
5:10
you can perform measurements even though is flashing on the display.
4:50
• Based on data as of January 2000.
Cleaning the Sensor Lens
A clean sensor lens helps to ensure more accurate
Sensor lens
temperature readings.
To clean the lens
Rinse the lens with cold or warm water and then wipe off
all remaining moisture with a cotton swab, taking care
not to scratch the lens.
The lens may be dirty, even though you cannot see any
dirt or dust on it. Because of this, you should make it a
habit to clean the lens periodically.
Important!
•
Acids (including fruit juices, etc.) can permanently damage the lens and
make accurate measurements impossible. Should any acidic matter get
onto the lens, rinse it off immediately.
•
Accurate measurements are impossible whenever there is condensation,
water droplets, snow, or any other moisture on the lens. Before
measurements, wipe off all moisture with a cotton swab, taking care not to
scratch the lens.
•
Avoid scratches by keeping scissors, needles, and other pointed objects
away from the lens.
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2030-7
EMISSIVITY VALUES
Objects
Blackbody
1.00
0.95
0.90
0.85
0.80
0.75
0.70
0.65
0.60
0.55
0.50
0.45
0.40
0.35
0.30
0.25
0.20
0.15
Oixzed
Oixzed
P
Polished
0.10
Emissivity
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