Ref.No.
：
042011
OS499L-30
(with white LED Flashlight)
Thermometer Operating Instructions
For Model with thermocouple socket
The thermometer is a non-contact infrared thermometer. There are many mathematical modes for the Infrared function. Please
remember to keep away from children and don’t use it for safety related applications.
(Default Screen)
Simply aim the
thermometer at the
measure target
with Lens (
7
7
) and
press Meas. key
(
6
) to display the
surface
temperature. The
Distance:Spot is 30:1. Please make sure the target area is within the field of view.
FUNCTION
Press Mode key ( ) for scrolling more display function as follows.
Here will show the emissivity data. (The default emissivity is 0.95.)
Press Mode key ( ) , then press Up key (
4
2
2
4
6
3
5
4
3
3
2
) or Down key ( ) to
set the emissivity
, then press Mode key ( )
to confirm it. The emissivity can be changed from 0.10 (10E) to 1 (100E).
Press Mode key ( ) for the
Maximum (MAX), Minimum (MIN), Different between MAX and MIN (DIF) and
Average (AVG) modes. During the measurement, the special modes reading will be displayed beside the
mode icon.
Press Up key ( ) or Down key ( ) key to change the
High Alarm (HAL)
or
Lo Alarm (LAL)
, then press Meas.
key ( ) to confirm it. When the reading is outside the
High Alarm (HAL)
or
Lo Alarm (LAL)
limit. The High or
Low icon will flash and you will hear a beep sound.
Connect the thermocouple with Thermocouple socket ( ) and put the probe in/on the target, the thermometer will
display the temperature automatically without pressing any button. To see the minimum or maximum data during
the probe measurement, please hold down the Up key ( ) or Down key ( ).
After measure high temp, the probe may remain HOT for a while.
** The thermometer will automatically shut off if left idle for more than 60sec, unless in PRB mode. (In PRB mode, it will shut off if
left idle for more than 12 minutes.)
ADD VALUE
Press Up key ( ) for
LOCK mode
ON/OFF.
The lock mode is particularly useful for continuous
monitoring of temperatures for up to 60 minutes.
In E, MAX, MIN, DIF, AVG
mode:
Press Down key ( ) for
o
C
or
o
F transferred.
In MAX, MIN mode: Hold
on the Meas. key ( )
The Bar display indicates the measuring temperature.
The bar shows
RED
color when the reading is close to
maximum value, and shows
BLUE
when close to
minimum. While the temperature is between the maximum
and minimum, the bar will display in
YELLOW
.
Backlight
LCD Backlight: always on.
In all modes: First hold
on the Meas. key ( )
and press Down key ( ) for
laser function
ON/OFF.
CAUTION
1. WHEN DEVICE IS IN USE, DO NOT LOOK DIRECTLY INTO THE LASER BEAM–PERMANENT EYE DAMAGE MAY RESULT.
2. USE EXTREME CAUTION WHEN OPERATING THE LASER.
3. NEVER POINT THE DEVICE TOWARDS ANYONE’S EYES.
4.
KEEP OUT OF REACH OF ALL CHILDREN.
STORAGE & CLEANING
It should be stored at room temperature. The sensor lens is the most delicate part of the thermometer. The lens should be kept clean at all times,
care should be taken when cleaning the lens using only a soft cloth or cotton swab with water or medical alcohol, allowing the lens to fully dry
before using the thermometer. Do not submerge any part of the thermometer.
LCD ERROR MESSAGES
The thermometer incorporates visual diagnostic messages as follows:
‘Hi’
or
’Low’
is displayed when the temperature being measured is outside of the settings of HAL and LAL.
‘Er2’ is displayed when the thermometer is exposed to rapid changes in the ambient temperature. ‘Er3’ is
displayed when the ambient temperature exceeds 0
o
C (32°F) or +50
o
C (122°F). The thermometer should
be allowed plenty of time (minimum 30 minutes) to stabilize to the working/room temperature.
Error 5~9
, for all other error messages it is necessary to reset the thermometer. To reset it, turn the
instrument off, remove the battery and wait for a minimum of one minute, reinsert the battery and turn on.
If the error message remains please contact the Service Department for further assistance.
‘Hi’ or ’Lo’ is displayed when the temperature being measured is outside of the measurement range.
BATTERIES
The thermometer incorporates visual low battery indication as follows:
‘Battery OK’: measurements
are possible
‘Battery Low’: battery needs to be
replaced, measurements are still possible
‘Battery Exhausted’: measurements are not
possible
When the ‘Low Battery’ icon indicates the battery is low, the battery should be replaced immediately with AAA, 1.5V batteries. Please note: It
is important to turn the instrument off before replacing the battery otherwise the thermometer may malfunction.
Dispose of used battery promptly and keep away from children.
SPECIFICATION
m
e
tI
Thermocouple Probe Scan function
(K type; probe not included.)
Measurement Range
-60 to +760
o
C (-76 to +1400
o
F)
-64 to +1400°C (-83.2 to +2552°F)
Operating Range
0 to +50°C (32 to +122°F)
Accuracy (Tobj=15~35°C, Tamb=25°C)
Accuracy(Tamb=23±3°C)
+/-1% of reading or 1°C (1.8°F) whichever is greater
(Test under Tamb=23±6°C)
Emissivity Range
0.95 default – adjustable 0.1 to 1 step .01
F
°
1
/
C
°
1
e
s
i
w
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h
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o
,
)
F
°/
C
°
(
9
.
9
9
9
o
t
2
.
3
8
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t
a
F
°
1
.
0
/
C
°
1
.
0
n
o
it
u
l
o
s
e
R
Response Time (90%)
1sec
Distance:Spot
30:1(90% energy covered)
Battery Life(Alkaline)
Min. 30 hours continuous use without laser
Min. 7 hours continuous use with laser
Min. 3 hours continuous use with laser and white LED(TN499LCE)
)
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i
6
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.
6
×
7
8
.
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×
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5
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7
4
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Note: Under the electromagnetic field of 3V/m from 200 to 600 MHz, the maximum error is 10
o
C (18
o
F).
Caution: The measure range is for thermometer only. User should choose proper probe types for different kinds of application.
Please make sure the target to be measured will not exceed the temperature range of the probe to avoid permanent damage of
the thermocouple probe.
Caution: To avoid electric shock and thermometer damage, do not measure live circuit where voltage exceeding 24V AC RMS or
60V DC with the thermocouple probe.
EMC/RFI:
Readings may be affected if the unit is operated within radio frequency electromagnetic field strength of approximately 3 volts per
meter, but the performance of the instrument will not be permanently affected.
*Dual laser
points specify
the approximate
measurement
area for better
targeting.
2
4
3
3
6
6
