Traceable 4487 User manual
Traceable® Circle Laser Infrared Thermometer
with HACCP Check
TCT70MFX
�
tWJ 9�8
11
f.,
O
4.o•c
E
f w
I\
M I
I 1 +1
�
-�
°
! 0
TCT70MFX
�
tWJ 9�8
11
f.,
O
4.o•c
E
f w
I\
M I
I 1 +1
�
-�
°
! 0
SPECIFICATIONS
Range: –30 to 250 °C (–22 to 482 °F)
Resolution: 0.1°C/0.1°F at –9.9 to 199.9(°C/°F),
otherwise 1°C/1°F
Accuracy:
between –30 to 0 °C/°F: ±(1 °C +0.1°)
between 0 to 65 °C/°F: ±1 °C/F
between 65 to 250 °C/°F: ±1.5% of reading
Response Time: 1 second
Emissivity: 0.95 default; adjustable 0.1 to 1
step 0.01
Distance-to-Spot Ratio: 8:1
Operating Range: 0 to 50°C (32 to 122°F)
Power: two AAA alkaline batteries; minimum
90 hours continuous use (without laser and
backlight)
Dimensions: 166.87 x 55.93 x 46 mm (6.57 x
2.2 x 1.81 inch)
Weight: 165 g (5.82 oz) including batteries
Default LCD
TCT70MFX
�
tWJ 9�8
11
f.,
O
4.o•c
E
f w
I\
M I
I 1 +1
�
-�
°
! 0
OPERATION
Simply aim the thermometer at the measure
target and press Meas. key to display surface
temperature.
HACCP CHECK
• The "HACCP CHECK" feature is incorporated
in thermometer temperature to indicate
critical temperature zone. The LED light
indicates a food product stays in a safe or
unsafe HACCP "Danger Zone" temperature.
The green and red LED lights will always be
lit before power o.
• A Green LED light indicates a safe cool or
frozen condition below 4.0 °C (40.0 °F or
indicates a safe holding temperature above
60.0"C ( 140.0 °F).
• When temperature is between 4.0 °C (40.0
°F) and 60.0 °C (140.0 °F), the red LED light
indicates that the temperature has fallen
within the HACCP "Danger Zone" from 4.0 °C
(40.0 °F) to 60.0 °C (140.0 °F).
HACCP Check
↓4.0 °C 4.0 to 59 °C ↑60.0 °C
↓40.0 °F 40.0 to 139 °F ↑140.0 °F
HACCP Check Indicator LED
FUNCTION
Press Mode key for scrolling more display
function as follows:
Ref.No.：082018
TN498LCH / TN498LCHE(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) and press Meas. key (○○
6) to display the surface temperature. The
Distance:Spot is 12:1. Please make sure the target area is within the field of view. Press Mode key (○○
2) for scrolling more display
function as follows.
FUNCTION
Here will show the emissivity data. (The default emissivity is 0.95.)
Press Mode key (○
2) , then press Up key (○
4) or Down key (○
3) to set the emissivity, then press Mode key (○
2) to confirm it.
The emissivity can be changed from 0.10 (10E) to 1 (100E).
Press Mode key (○
2) for the Maximum (MAX), Minimum (MIN), Different between MAX and MIN (DIF) and
A
verage (AVG)
modes. During the measurement, the special modes reading will be displayed beside the mode icon.
Press Up key (○
4) or Down key (○
3) to change the High Alarm (HAL) or Lo Alarm (LAL), then press Meas. key (○
6) 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 (○
5) 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 (○
4) or Down key (○
3).
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
In E,MAX, MIN, DIF, AVG mode:
Press Up key (○
4) for LOCK mode ON/OFF. The lock mode is particularly useful for continuous monitoring
of temperatures for up to 60 minutes.
Press Down key (○
3) for oCor oF transferred.
In all modes: First hold on the
Meas. key (○○
6)
and press Up key (○
4) for backlight function ON/OFF.
and press Down key (○
3) for ClassIIIa 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 ’Lo’ 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 the range of 0oC(32°F)~50oC (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.
If the device is not to be used for a long time, turn the power off, remove and store the batteries in a cool, dry place.
SPECIFICATION
Item Non-contact Infrared Scan function Thermocouple Probe Scan function
(K type; probe not included.)
Measurement Range -60 to +550 oC (-76 to +1022 oF) -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) ±1.0°C (1.8°F) +/-1% of reading or 1°C (1.8°F) whichever is
greater (Test under Tamb=23±6°C)
Accuracy(Tamb=23±3°C) Tobj=-60~0: ±(2+0.05/°C)°C, Tobj=0~550:
±2% of reading or 2°C (4°F) whichever is greater
Emissivity Range 0.95 default – adjustable 0.1 to 1 step .01
Resolution 0.1°C/0.1°F at -83.2 to 999.9(°C/°F), otherwise 1°C/1°F
Response Time (90%) 1sec
Distance:Spot 12:1(90% energy covered)
Battery Life Typ.180, min 140 hours continuous use (Alkaline, without Laser and Back Light.)
Dimensions 119.2*47.5*171.8 mm (4.7×1.87×6.76 inch)
Weight 255.7 grams(9.02 oz) including batteries (AAA*2pcs)
Note: Under the electromagnetic field of 3V/m from 200 to 600 MHz, the maximum error is 10 oC (18 oF).
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.
* Circle Laser
specify the approximate measurement
area for better targeting.
Emissivity data (The default emissivity is 0.95.)
Ref.No.：082018
TN498LCH / TN498LCHE(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) and press Meas. key (○○
6) to display the surface temperature. The
Distance:Spot is 12:1. Please make sure the target area is within the field of view. Press Mode key (○○
2) for scrolling more display
function as follows.
FUNCTION
Here will show the emissivity data. (The default emissivity is 0.95.)
Press Mode key (○
2) , then press Up key (○
4) or Down key (○
3) to set the emissivity, then press Mode key (○
2) to confirm it.
The emissivity can be changed from 0.10 (10E) to 1 (100E).
Press Mode key (○
2) for the Maximum (MAX), Minimum (MIN), Different between MAX and MIN (DIF) and
A
verage (AVG)
modes. During the measurement, the special modes reading will be displayed beside the mode icon.
Press Up key (○
4) or Down key (○
3) to change the High Alarm (HAL) or Lo Alarm (LAL), then press Meas. key (○
6) 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 (○
5) 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 (○
4) or Down key (○
3).
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
In E,MAX, MIN, DIF, AVG mode:
Press Up key (○
4) for LOCK mode ON/OFF. The lock mode is particularly useful for continuous monitoring
of temperatures for up to 60 minutes.
Press Down key (○
3) for oCor oF transferred.
In all modes: First hold on the
Meas. key (○○
6)
and press Up key (○
4) for backlight function ON/OFF.
and press Down key (○
3) for ClassIIIa 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 ’Lo’ 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 the range of 0oC(32°F)~50oC (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.
If the device is not to be used for a long time, turn the power off, remove and store the batteries in a cool, dry place.
SPECIFICATION
Item Non-contact Infrared Scan function Thermocouple Probe Scan function
(K type; probe not included.)
Measurement Range -60 to +550 oC (-76 to +1022 oF) -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) ±1.0°C (1.8°F) +/-1% of reading or 1°C (1.8°F) whichever is
greater (Test under Tamb=23±6°C)
Accuracy(Tamb=23±3°C) Tobj=-60~0: ±(2+0.05/°C)°C, Tobj=0~550:
±2% of reading or 2°C (4°F) whichever is greater
Emissivity Range 0.95 default – adjustable 0.1 to 1 step .01
Resolution 0.1°C/0.1°F at -83.2 to 999.9(°C/°F), otherwise 1°C/1°F
Response Time (90%) 1sec
Distance:Spot 12:1(90% energy covered)
Battery Life Typ.180, min 140 hours continuous use (Alkaline, without Laser and Back Light.)
Dimensions 119.2*47.5*171.8 mm (4.7×1.87×6.76 inch)
Weight 255.7 grams(9.02 oz) including batteries (AAA*2pcs)
Note: Under the electromagnetic field of 3V/m from 200 to 600 MHz, the maximum error is 10 oC (18 oF).
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.
* Circle Laser
specify the approximate measurement
area for better targeting.
Press Mode Key then press Up Key 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).
Ref.No.：082018
TN498LCH / TN498LCHE(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) and press Meas. key (○○
6) to display the surface temperature. The
Distance:Spot is 12:1. Please make sure the target area is within the field of view. Press Mode key (○○
2) for scrolling more display
function as follows.
FUNCTION
Here will show the emissivity data. (The default emissivity is 0.95.)
Press Mode key (○
2) , then press Up key (○
4) or Down key (○
3) to set the emissivity, then press Mode key (○
2) to confirm it.
The emissivity can be changed from 0.10 (10E) to 1 (100E).
Press Mode key (○
2) for the Maximum (MAX), Minimum (MIN), Different between MAX and MIN (DIF) and
A
verage (AVG)
modes. During the measurement, the special modes reading will be displayed beside the mode icon.
Press Up key (○
4) or Down key (○
3) to change the High Alarm (HAL) or Lo Alarm (LAL), then press Meas. key (○
6) 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 (○
5) 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 (○
4) or Down key (○
3).
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
In E,MAX, MIN, DIF, AVG mode:
Press Up key (○
4) for LOCK mode ON/OFF. The lock mode is particularly useful for continuous monitoring
of temperatures for up to 60 minutes.
Press Down key (○
3) for oCor oF transferred.
In all modes: First hold on the
Meas. key (○○
6)
and press Up key (○
4) for backlight function ON/OFF.
and press Down key (○
3) for ClassIIIa 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 ’Lo’ 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 the range of 0oC(32°F)~50oC (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.
If the device is not to be used for a long time, turn the power off, remove and store the batteries in a cool, dry place.
SPECIFICATION
Item Non-contact Infrared Scan function Thermocouple Probe Scan function
(K type; probe not included.)
Measurement Range -60 to +550 oC (-76 to +1022 oF) -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) ±1.0°C (1.8°F) +/-1% of reading or 1°C (1.8°F) whichever is
greater (Test under Tamb=23±6°C)
Accuracy(Tamb=23±3°C) Tobj=-60~0: ±(2+0.05/°C)°C, Tobj=0~550:
±2% of reading or 2°C (4°F) whichever is greater
Emissivity Range 0.95 default – adjustable 0.1 to 1 step .01
Resolution 0.1°C/0.1°F at -83.2 to 999.9(°C/°F), otherwise 1°C/1°F
Response Time (90%) 1sec
Distance:Spot 12:1(90% energy covered)
Battery Life Typ.180, min 140 hours continuous use (Alkaline, without Laser and Back Light.)
Dimensions 119.2*47.5*171.8 mm (4.7×1.87×6.76 inch)
Weight 255.7 grams(9.02 oz) including batteries (AAA*2pcs)
Note: Under the electromagnetic field of 3V/m from 200 to 600 MHz, the maximum error is 10 oC (18 oF).
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.
* Circle Laser
specify the approximate measurement
area for better targeting.
Press Mode Key for the Maximum (MAX),
Minimum (MIN), Dierent between MAX and
MIN (DIF) and Average (AVG) modes. During
the measurement, the special modes reading
will be displayed beside the mode icon.
Ref.No.：082018
TN498LCH / TN498LCHE(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) and press Meas. key (○○
6) to display the surface temperature. The
Distance:Spot is 12:1. Please make sure the target area is within the field of view. Press Mode key (○○
2) for scrolling more display
function as follows.
FUNCTION
Here will show the emissivity data. (The default emissivity is 0.95.)
Press Mode key (○
2) , then press Up key (○
4) or Down key (○
3) to set the emissivity, then press Mode key (○
2) to confirm it.
The emissivity can be changed from 0.10 (10E) to 1 (100E).
Press Mode key (○
2) for the Maximum (MAX), Minimum (MIN), Different between MAX and MIN (DIF) and
A
verage (AVG)
modes. During the measurement, the special modes reading will be displayed beside the mode icon.
Press Up key (○
4) or Down key (○
3) to change the High Alarm (HAL) or Lo Alarm (LAL), then press Meas. key (○
6) 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 (○
5) 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 (○
4) or Down key (○
3).
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
In E,MAX, MIN, DIF, AVG mode:
Press Up key (○
4) for LOCK mode ON/OFF. The lock mode is particularly useful for continuous monitoring
of temperatures for up to 60 minutes.
Press Down key (○
3) for oCor oF transferred.
In all modes: First hold on the
Meas. key (○○
6)
and press Up key (○
4) for backlight function ON/OFF.
and press Down key (○
3) for ClassIIIa 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 ’Lo’ 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 the range of 0oC(32°F)~50oC (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.
If the device is not to be used for a long time, turn the power off, remove and store the batteries in a cool, dry place.
SPECIFICATION
Item Non-contact Infrared Scan function Thermocouple Probe Scan function
(K type; probe not included.)
Measurement Range -60 to +550 oC (-76 to +1022 oF) -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) ±1.0°C (1.8°F) +/-1% of reading or 1°C (1.8°F) whichever is
greater (Test under Tamb=23±6°C)
Accuracy(Tamb=23±3°C) Tobj=-60~0: ±(2+0.05/°C)°C, Tobj=0~550:
±2% of reading or 2°C (4°F) whichever is greater
Emissivity Range 0.95 default – adjustable 0.1 to 1 step .01
Resolution 0.1°C/0.1°F at -83.2 to 999.9(°C/°F), otherwise 1°C/1°F
Response Time (90%) 1sec
Distance:Spot 12:1(90% energy covered)
Battery Life Typ.180, min 140 hours continuous use (Alkaline, without Laser and Back Light.)
Dimensions 119.2*47.5*171.8 mm (4.7×1.87×6.76 inch)
Weight 255.7 grams(9.02 oz) including batteries (AAA*2pcs)
Note: Under the electromagnetic field of 3V/m from 200 to 600 MHz, the maximum error is 10 oC (18 oF).
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.
* Circle Laser
specify the approximate measurement
area for better targeting.
Press Up Key or Down Key to change
the High Alarm (HAL) or Lo Alarm (LAL), then
press Measurement 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.
Note: The thermometer will automatically shut
o if left idle for more than 60 seconds.
Add value
In E, MAX, MIN,
DIF, AVG mode:
Press Up Key for LOCK mode ON/
OFF. The lock mode is particularly
useful for continuous monitoring of
temperatures for up to 60 minutes.
Press Down Key for °C or °F
transferred.
In all modes: First
hold on the Meas,
Key
and press Up Key for
green backlight ON/OFF.
TCT70MFX
�
tWJ 9�8
11
f.,
O
4.o•c
E
f w
I\
M I
I 1 +1
�
-�
°
! 0
and press Down Key for
laser function ON/OFF.
TCT70MFX
�
tWJ 9�8
11
f.,
O
4.o•c
E
f w
I\
M I
I 1 +1
�
-�
°
! 0
Multi-Beams Laser specify the approximate
measurement area for better
TCT70MFX
�
tWJ 9�8
11
f.,
O
4.o•c
E
f w
I\
M I
I 1 +1
�
-�
°
! 0
LCD ERROR MESSAGES
The thermometer incorporates visual diagnostic
messages as follows:
‘Hi’ or ’Lo’ is displayed when the
temperature being measured is
outside of the alarm 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 the range of 0 °C (32 °F)
~50 °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 o, 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
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 are possible.
BATTERY REPLACEMENT
1. Loosen the screw and pull out the battery
cover .
2. Replace and reinstall with new batteries.
3. Place the battery cover back and fasten
the screw.
When the 'Low Battery' icon indicates the
battery is low, the battery should be replaced
immediately with AAA, 1.5V batteries. Note:
It is important to turn the instrument o
before replacing the battery otherwise the
thermometer may malfunction.
Dispose of used battery promptly and keep
away from children.
Ref.No.：082018
TN498LCH / TN498LCHE(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) and press Meas. key (○○
6) to display the surface temperature. The
Distance:Spot is 12:1. Please make sure the target area is within the field of view. Press Mode key (○○
2) for scrolling more display
function as follows.
FUNCTION
Here will show the emissivity data. (The default emissivity is 0.95.)
Press Mode key (○
2) , then press Up key (○
4) or Down key (○
3) to set the emissivity, then press Mode key (○
2) to confirm it.
The emissivity can be changed from 0.10 (10E) to 1 (100E).
Press Mode key (○
2) for the Maximum (MAX), Minimum (MIN), Different between MAX and MIN (DIF) and
A
verage (AVG)
modes. During the measurement, the special modes reading will be displayed beside the mode icon.
Press Up key (○
4) or Down key (○
3) to change the High Alarm (HAL) or Lo Alarm (LAL), then press Meas. key (○
6) 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 (○
5) 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 (○
4) or Down key (○
3).
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
In E,MAX, MIN, DIF, AVG mode:
Press Up key (○
4) for LOCK mode ON/OFF. The lock mode is particularly useful for continuous monitoring
of temperatures for up to 60 minutes.
Press Down key (○
3) for oCor oF transferred.
In all modes: First hold on the
Meas. key (○○
6)
and press Up key (○
4) for backlight function ON/OFF.
and press Down key (○
3) for ClassIIIa 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 ’Lo’ 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 the range of 0oC(32°F)~50oC (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.
If the device is not to be used for a long time, turn the power off, remove and store the batteries in a cool, dry place.
SPECIFICATION
Item Non-contact Infrared Scan function Thermocouple Probe Scan function
(K type; probe not included.)
Measurement Range -60 to +550 oC (-76 to +1022 oF) -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) ±1.0°C (1.8°F) +/-1% of reading or 1°C (1.8°F) whichever is
greater (Test under Tamb=23±6°C)
Accuracy(Tamb=23±3°C) Tobj=-60~0: ±(2+0.05/°C)°C, Tobj=0~550:
±2% of reading or 2°C (4°F) whichever is greater
Emissivity Range 0.95 default – adjustable 0.1 to 1 step .01
Resolution 0.1°C/0.1°F at -83.2 to 999.9(°C/°F), otherwise 1°C/1°F
Response Time (90%) 1sec
Distance:Spot 12:1(90% energy covered)
Battery Life Typ.180, min 140 hours continuous use (Alkaline, without Laser and Back Light.)
Dimensions 119.2*47.5*171.8 mm (4.7×1.87×6.76 inch)
Weight 255.7 grams(9.02 oz) including batteries (AAA*2pcs)
Note: Under the electromagnetic field of 3V/m from 200 to 600 MHz, the maximum error is 10 oC (18 oF).
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.
* Circle Laser
specify the approximate measurement
area for better targeting.
Ref.No.：082018
TN498LCH / TN498LCHE(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) and press Meas. key (○○
6) to display the surface temperature. The
Distance:Spot is 12:1. Please make sure the target area is within the field of view. Press Mode key (○○
2) for scrolling more display
function as follows.
FUNCTION
Here will show the emissivity data. (The default emissivity is 0.95.)
Press Mode key (○
2) , then press Up key (○
4) or Down key (○
3) to set the emissivity, then press Mode key (○
2) to confirm it.
The emissivity can be changed from 0.10 (10E) to 1 (100E).
Press Mode key (○
2) for the Maximum (MAX), Minimum (MIN), Different between MAX and MIN (DIF) and
A
verage (AVG)
modes. During the measurement, the special modes reading will be displayed beside the mode icon.
Press Up key (○
4) or Down key (○
3) to change the High Alarm (HAL) or Lo Alarm (LAL), then press Meas. key (○
6) 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 (○
5) 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 (○
4) or Down key (○
3).
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
In E,MAX, MIN, DIF, AVG mode:
Press Up key (○
4) for LOCK mode ON/OFF. The lock mode is particularly useful for continuous monitoring
of temperatures for up to 60 minutes.
Press Down key (○
3) for oCor oF transferred.
In all modes: First hold on the
Meas. key (○○
6)
and press Up key (○
4) for backlight function ON/OFF.
and press Down key (○
3) for ClassIIIa 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 ’Lo’ 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 the range of 0oC(32°F)~50oC (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.
If the device is not to be used for a long time, turn the power off, remove and store the batteries in a cool, dry place.
SPECIFICATION
Item Non-contact Infrared Scan function Thermocouple Probe Scan function
(K type; probe not included.)
Measurement Range -60 to +550 oC (-76 to +1022 oF) -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) ±1.0°C (1.8°F) +/-1% of reading or 1°C (1.8°F) whichever is
greater (Test under Tamb=23±6°C)
Accuracy(Tamb=23±3°C) Tobj=-60~0: ±(2+0.05/°C)°C, Tobj=0~550:
±2% of reading or 2°C (4°F) whichever is greater
Emissivity Range 0.95 default – adjustable 0.1 to 1 step .01
Resolution 0.1°C/0.1°F at -83.2 to 999.9(°C/°F), otherwise 1°C/1°F
Response Time (90%) 1sec
Distance:Spot 12:1(90% energy covered)
Battery Life Typ.180, min 140 hours continuous use (Alkaline, without Laser and Back Light.)
Dimensions 119.2*47.5*171.8 mm (4.7×1.87×6.76 inch)
Weight 255.7 grams(9.02 oz) including batteries (AAA*2pcs)
Note: Under the electromagnetic field of 3V/m from 200 to 600 MHz, the maximum error is 10 oC (18 oF).
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.
* Circle Laser
specify the approximate measurement
area for better targeting.
Ref.No.：082018
TN498LCH / TN498LCHE(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) and press Meas. key (○○
6) to display the surface temperature. The
Distance:Spot is 12:1. Please make sure the target area is within the field of view. Press Mode key (○○
2) for scrolling more display
function as follows.
FUNCTION
Here will show the emissivity data. (The default emissivity is 0.95.)
Press Mode key (○
2) , then press Up key (○
4) or Down key (○
3) to set the emissivity, then press Mode key (○
2) to confirm it.
The emissivity can be changed from 0.10 (10E) to 1 (100E).
Press Mode key (○
2) for the Maximum (MAX), Minimum (MIN), Different between MAX and MIN (DIF) and
A
verage (AVG)
modes. During the measurement, the special modes reading will be displayed beside the mode icon.
Press Up key (○
4) or Down key (○
3) to change the High Alarm (HAL) or Lo Alarm (LAL), then press Meas. key (○
6) 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 (○
5) 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 (○
4) or Down key (○
3).
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
In E,MAX, MIN, DIF, AVG mode:
Press Up key (○
4) for LOCK mode ON/OFF. The lock mode is particularly useful for continuous monitoring
of temperatures for up to 60 minutes.
Press Down key (○
3) for oCor oF transferred.
In all modes: First hold on the
Meas. key (○○
6)
and press Up key (○
4) for backlight function ON/OFF.
and press Down key (○
3) for ClassIIIa 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 ’Lo’ 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 the range of 0oC(32°F)~50oC (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.
If the device is not to be used for a long time, turn the power off, remove and store the batteries in a cool, dry place.
SPECIFICATION
Item Non-contact Infrared Scan function Thermocouple Probe Scan function
(K type; probe not included.)
Measurement Range -60 to +550 oC (-76 to +1022 oF) -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) ±1.0°C (1.8°F) +/-1% of reading or 1°C (1.8°F) whichever is
greater (Test under Tamb=23±6°C)
Accuracy(Tamb=23±3°C) Tobj=-60~0: ±(2+0.05/°C)°C, Tobj=0~550:
±2% of reading or 2°C (4°F) whichever is greater
Emissivity Range 0.95 default – adjustable 0.1 to 1 step .01
Resolution 0.1°C/0.1°F at -83.2 to 999.9(°C/°F), otherwise 1°C/1°F
Response Time (90%) 1sec
Distance:Spot 12:1(90% energy covered)
Battery Life Typ.180, min 140 hours continuous use (Alkaline, without Laser and Back Light.)
Dimensions 119.2*47.5*171.8 mm (4.7×1.87×6.76 inch)
Weight 255.7 grams(9.02 oz) including batteries (AAA*2pcs)
Note: Under the electromagnetic field of 3V/m from 200 to 600 MHz, the maximum error is 10 oC (18 oF).
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.
* Circle Laser
specify the approximate measurement
area for better targeting.
Ref.No.：082018
TN498LCH / TN498LCHE(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) and press Meas. key (○○
6) to display the surface temperature. The
Distance:Spot is 12:1. Please make sure the target area is within the field of view. Press Mode key (○○
2) for scrolling more display
function as follows.
FUNCTION
Here will show the emissivity data. (The default emissivity is 0.95.)
Press Mode key (○
2) , then press Up key (○
4) or Down key (○
3) to set the emissivity, then press Mode key (○
2) to confirm it.
The emissivity can be changed from 0.10 (10E) to 1 (100E).
Press Mode key (○
2) for the Maximum (MAX), Minimum (MIN), Different between MAX and MIN (DIF) and
A
verage (AVG)
modes. During the measurement, the special modes reading will be displayed beside the mode icon.
Press Up key (○
4) or Down key (○
3) to change the High Alarm (HAL) or Lo Alarm (LAL), then press Meas. key (○
6) 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 (○
5) 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 (○
4) or Down key (○
3).
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
In E,MAX, MIN, DIF, AVG mode:
Press Up key (○
4) for LOCK mode ON/OFF. The lock mode is particularly useful for continuous monitoring
of temperatures for up to 60 minutes.
Press Down key (○
3) for oCor oF transferred.
In all modes: First hold on the
Meas. key (○○
6)
and press Up key (○
4) for backlight function ON/OFF.
and press Down key (○
3) for ClassIIIa 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 ’Lo’ 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 the range of 0oC(32°F)~50oC (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.
If the device is not to be used for a long time, turn the power off, remove and store the batteries in a cool, dry place.
SPECIFICATION
Item Non-contact Infrared Scan function Thermocouple Probe Scan function
(K type; probe not included.)
Measurement Range -60 to +550 oC (-76 to +1022 oF) -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) ±1.0°C (1.8°F) +/-1% of reading or 1°C (1.8°F) whichever is
greater (Test under Tamb=23±6°C)
Accuracy(Tamb=23±3°C) Tobj=-60~0: ±(2+0.05/°C)°C, Tobj=0~550:
±2% of reading or 2°C (4°F) whichever is greater
Emissivity Range 0.95 default – adjustable 0.1 to 1 step .01
Resolution 0.1°C/0.1°F at -83.2 to 999.9(°C/°F), otherwise 1°C/1°F
Response Time (90%) 1sec
Distance:Spot 12:1(90% energy covered)
Battery Life Typ.180, min 140 hours continuous use (Alkaline, without Laser and Back Light.)
Dimensions 119.2*47.5*171.8 mm (4.7×1.87×6.76 inch)
Weight 255.7 grams(9.02 oz) including batteries (AAA*2pcs)
Note: Under the electromagnetic field of 3V/m from 200 to 600 MHz, the maximum error is 10 oC (18 oF).
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.
* Circle Laser
specify the approximate measurement
area for better targeting.
Ref.No.：082018
TN498LCH / TN498LCHE(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) and press Meas. key (○○
6) to display the surface temperature. The
Distance:Spot is 12:1. Please make sure the target area is within the field of view. Press Mode key (○○
2) for scrolling more display
function as follows.
FUNCTION
Here will show the emissivity data. (The default emissivity is 0.95.)
Press Mode key (○
2) , then press Up key (○
4) or Down key (○
3) to set the emissivity, then press Mode key (○
2) to confirm it.
The emissivity can be changed from 0.10 (10E) to 1 (100E).
Press Mode key (○
2) for the Maximum (MAX), Minimum (MIN), Different between MAX and MIN (DIF) and
A
verage (AVG)
modes. During the measurement, the special modes reading will be displayed beside the mode icon.
Press Up key (○
4) or Down key (○
3) to change the High Alarm (HAL) or Lo Alarm (LAL), then press Meas. key (○
6) 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 (○
5) 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 (○
4) or Down key (○
3).
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
In E,MAX, MIN, DIF, AVG mode:
Press Up key (○
4) for LOCK mode ON/OFF. The lock mode is particularly useful for continuous monitoring
of temperatures for up to 60 minutes.
Press Down key (○
3) for oCor oF transferred.
In all modes: First hold on the
Meas. key (○○
6)
and press Up key (○
4) for backlight function ON/OFF.
and press Down key (○
3) for ClassIIIa 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 ’Lo’ 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 the range of 0oC(32°F)~50oC (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.
If the device is not to be used for a long time, turn the power off, remove and store the batteries in a cool, dry place.
SPECIFICATION
Item Non-contact Infrared Scan function Thermocouple Probe Scan function
(K type; probe not included.)
Measurement Range -60 to +550 oC (-76 to +1022 oF) -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) ±1.0°C (1.8°F) +/-1% of reading or 1°C (1.8°F) whichever is
greater (Test under Tamb=23±6°C)
Accuracy(Tamb=23±3°C) Tobj=-60~0: ±(2+0.05/°C)°C, Tobj=0~550:
±2% of reading or 2°C (4°F) whichever is greater
Emissivity Range 0.95 default – adjustable 0.1 to 1 step .01
Resolution 0.1°C/0.1°F at -83.2 to 999.9(°C/°F), otherwise 1°C/1°F
Response Time (90%) 1sec
Distance:Spot 12:1(90% energy covered)
Battery Life Typ.180, min 140 hours continuous use (Alkaline, without Laser and Back Light.)
Dimensions 119.2*47.5*171.8 mm (4.7×1.87×6.76 inch)
Weight 255.7 grams(9.02 oz) including batteries (AAA*2pcs)
Note: Under the electromagnetic field of 3V/m from 200 to 600 MHz, the maximum error is 10 oC (18 oF).
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.
* Circle Laser
specify the approximate measurement
area for better targeting.
Ref.No.：082018
TN498LCH / TN498LCHE(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) and press Meas. key (○○
6) to display the surface temperature. The
Distance:Spot is 12:1. Please make sure the target area is within the field of view. Press Mode key (○○
2) for scrolling more display
function as follows.
FUNCTION
Here will show the emissivity data. (The default emissivity is 0.95.)
Press Mode key (○
2) , then press Up key (○
4) or Down key (○
3) to set the emissivity, then press Mode key (○
2) to confirm it.
The emissivity can be changed from 0.10 (10E) to 1 (100E).
Press Mode key (○
2) for the Maximum (MAX), Minimum (MIN), Different between MAX and MIN (DIF) and
A
verage (AVG)
modes. During the measurement, the special modes reading will be displayed beside the mode icon.
Press Up key (○
4) or Down key (○
3) to change the High Alarm (HAL) or Lo Alarm (LAL), then press Meas. key (○
6) 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 (○
5) 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 (○
4) or Down key (○
3).
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
In E,MAX, MIN, DIF, AVG mode:
Press Up key (○
4) for LOCK mode ON/OFF. The lock mode is particularly useful for continuous monitoring
of temperatures for up to 60 minutes.
Press Down key (○
3) for oCor oF transferred.
In all modes: First hold on the
Meas. key (○○
6)
and press Up key (○
4) for backlight function ON/OFF.
and press Down key (○
3) for ClassIIIa 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 ’Lo’ 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 the range of 0oC(32°F)~50oC (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.
If the device is not to be used for a long time, turn the power off, remove and store the batteries in a cool, dry place.
SPECIFICATION
Item Non-contact Infrared Scan function Thermocouple Probe Scan function
(K type; probe not included.)
Measurement Range -60 to +550 oC (-76 to +1022 oF) -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) ±1.0°C (1.8°F) +/-1% of reading or 1°C (1.8°F) whichever is
greater (Test under Tamb=23±6°C)
Accuracy(Tamb=23±3°C) Tobj=-60~0: ±(2+0.05/°C)°C, Tobj=0~550:
±2% of reading or 2°C (4°F) whichever is greater
Emissivity Range 0.95 default – adjustable 0.1 to 1 step .01
Resolution 0.1°C/0.1°F at -83.2 to 999.9(°C/°F), otherwise 1°C/1°F
Response Time (90%) 1sec
Distance:Spot 12:1(90% energy covered)
Battery Life Typ.180, min 140 hours continuous use (Alkaline, without Laser and Back Light.)
Dimensions 119.2*47.5*171.8 mm (4.7×1.87×6.76 inch)
Weight 255.7 grams(9.02 oz) including batteries (AAA*2pcs)
Note: Under the electromagnetic field of 3V/m from 200 to 600 MHz, the maximum error is 10 oC (18 oF).
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.
* Circle Laser
specify the approximate measurement
area for better targeting.
Ref.No.：082018
TN498LCH / TN498LCHE(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) and press Meas. key (○○
6) to display the surface temperature. The
Distance:Spot is 12:1. Please make sure the target area is within the field of view. Press Mode key (○○
2) for scrolling more display
function as follows.
FUNCTION
Here will show the emissivity data. (The default emissivity is 0.95.)
Press Mode key (○
2) , then press Up key (○
4) or Down key (○
3) to set the emissivity, then press Mode key (○
2) to confirm it.
The emissivity can be changed from 0.10 (10E) to 1 (100E).
Press Mode key (○
2) for the Maximum (MAX), Minimum (MIN), Different between MAX and MIN (DIF) and
A
verage (AVG)
modes. During the measurement, the special modes reading will be displayed beside the mode icon.
Press Up key (○
4) or Down key (○
3) to change the High Alarm (HAL) or Lo Alarm (LAL), then press Meas. key (○
6) 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 (○
5) 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 (○
4) or Down key (○
3).
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
In E,MAX, MIN, DIF, AVG mode:
Press Up key (○
4) for LOCK mode ON/OFF. The lock mode is particularly useful for continuous monitoring
of temperatures for up to 60 minutes.
Press Down key (○
3) for oCor oF transferred.
In all modes: First hold on the
Meas. key (○○
6)
and press Up key (○
4) for backlight function ON/OFF.
and press Down key (○
3) for ClassIIIa 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 ’Lo’ 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 the range of 0oC(32°F)~50oC (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.
If the device is not to be used for a long time, turn the power off, remove and store the batteries in a cool, dry place.
SPECIFICATION
Item Non-contact Infrared Scan function Thermocouple Probe Scan function
(K type; probe not included.)
Measurement Range -60 to +550 oC (-76 to +1022 oF) -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) ±1.0°C (1.8°F) +/-1% of reading or 1°C (1.8°F) whichever is
greater (Test under Tamb=23±6°C)
Accuracy(Tamb=23±3°C) Tobj=-60~0: ±(2+0.05/°C)°C, Tobj=0~550:
±2% of reading or 2°C (4°F) whichever is greater
Emissivity Range 0.95 default – adjustable 0.1 to 1 step .01
Resolution 0.1°C/0.1°F at -83.2 to 999.9(°C/°F), otherwise 1°C/1°F
Response Time (90%) 1sec
Distance:Spot 12:1(90% energy covered)
Battery Life Typ.180, min 140 hours continuous use (Alkaline, without Laser and Back Light.)
Dimensions 119.2*47.5*171.8 mm (4.7×1.87×6.76 inch)
Weight 255.7 grams(9.02 oz) including batteries (AAA*2pcs)
Note: Under the electromagnetic field of 3V/m from 200 to 600 MHz, the maximum error is 10 oC (18 oF).
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.
* Circle Laser
specify the approximate measurement
area for better targeting.
Ref.No.：082018
TN498LCH / TN498LCHE(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) and press Meas. key (○○
6) to display the surface temperature. The
Distance:Spot is 12:1. Please make sure the target area is within the field of view. Press Mode key (○○
2) for scrolling more display
function as follows.
FUNCTION
Here will show the emissivity data. (The default emissivity is 0.95.)
Press Mode key (○
2) , then press Up key (○
4) or Down key (○
3) to set the emissivity, then press Mode key (○
2) to confirm it.
The emissivity can be changed from 0.10 (10E) to 1 (100E).
Press Mode key (○
2) for the Maximum (MAX), Minimum (MIN), Different between MAX and MIN (DIF) and
A
verage (AVG)
modes. During the measurement, the special modes reading will be displayed beside the mode icon.
Press Up key (○
4) or Down key (○
3) to change the High Alarm (HAL) or Lo Alarm (LAL), then press Meas. key (○
6) 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 (○
5) 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 (○
4) or Down key (○
3).
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
In E,MAX, MIN, DIF, AVG mode:
Press Up key (○
4) for LOCK mode ON/OFF. The lock mode is particularly useful for continuous monitoring
of temperatures for up to 60 minutes.
Press Down key (○
3) for oCor oF transferred.
In all modes: First hold on the
Meas. key (○○
6)
and press Up key (○
4) for backlight function ON/OFF.
and press Down key (○
3) for ClassIIIa 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 ’Lo’ 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 the range of 0oC(32°F)~50oC (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.
If the device is not to be used for a long time, turn the power off, remove and store the batteries in a cool, dry place.
SPECIFICATION
Item Non-contact Infrared Scan function Thermocouple Probe Scan function
(K type; probe not included.)
Measurement Range -60 to +550 oC (-76 to +1022 oF) -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) ±1.0°C (1.8°F) +/-1% of reading or 1°C (1.8°F) whichever is
greater (Test under Tamb=23±6°C)
Accuracy(Tamb=23±3°C) Tobj=-60~0: ±(2+0.05/°C)°C, Tobj=0~550:
±2% of reading or 2°C (4°F) whichever is greater
Emissivity Range 0.95 default – adjustable 0.1 to 1 step .01
Resolution 0.1°C/0.1°F at -83.2 to 999.9(°C/°F), otherwise 1°C/1°F
Response Time (90%) 1sec
Distance:Spot 12:1(90% energy covered)
Battery Life Typ.180, min 140 hours continuous use (Alkaline, without Laser and Back Light.)
Dimensions 119.2*47.5*171.8 mm (4.7×1.87×6.76 inch)
Weight 255.7 grams(9.02 oz) including batteries (AAA*2pcs)
Note: Under the electromagnetic field of 3V/m from 200 to 600 MHz, the maximum error is 10 oC (18 oF).
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.
* Circle Laser
specify the approximate measurement
area for better targeting.
If the device is not to be used for a long
time, turn the power o, remove and store the
batteries in a cool, dry place.
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.
EMC/RFI: Readings may be aected 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 aected.
STORAGE & CLEANING
The thermometer should be stored at room
temperature between -20 to +65 °C (•4-149°F).
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.
Item No. 94460-89
Model No. 4487
©2023 1065TR_M_92-4487-00 Rev. 0 041223
WARRANTY, SERVICE, OR RECALIBRATION
12554 Old Galveston Rd. Suite B230
Webster, Texas 77598 USA
Ph. 281-482-1714 • Fax 281-482-9448
traceable.com
Traceable®Products are ISO 9001:2018 Quality-
Certifi ed by DNV and ISO/IEC 17025:2017
accredited as a Calibration Laboratory by A2LA.
Circle Laser Infrared
Thermometer with
Type K Input
Instructions
This manual suits for next models
1
Other Traceable Thermometer manuals
Traceable
Traceable 4247 User manual
Traceable
Traceable 4482 User manual
Traceable
Traceable 4045 User manual
Traceable
Traceable 4344 User manual
Traceable
Traceable 9446075 User manual
Traceable
Traceable 90002-03 User manual
Traceable
Traceable 4189 User manual
Traceable
Traceable 4202 Series User manual
Traceable
Traceable 4351 User manual
Traceable
Traceable LOLLIPOP 4371 User manual
Traceable
Traceable 4126 User manual
Traceable
Traceable 4330 User manual
Traceable
Traceable POCKET ULTRA User manual
Traceable
Traceable 4134 User manual
Traceable
Traceable RTD PLATINUM 4132 User manual
Traceable
Traceable PLATINUM User manual
Traceable
Traceable 4000 User manual
Traceable
Traceable 4241 User manual
Traceable
Traceable 98767-45 User manual
Traceable
Traceable 4482 User manual
