ThermoWorks IRT INFRARED User Manual

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Model: TN408XC, TN408LC (with Laser).

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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 The thermometer should be stored at room temperature between –20~+65

o

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.

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 0oC(32°F) or +50oC

(122°F). The thermometer should be allowed plenty of time (minimum 30 minutes) to stabilize
to the working/room temperature.

「 」

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 batter

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and turn on. If the error message remains please contact the Service Department for further
assistance.

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

Item Non-contact Infrared Scan function

Thermocouple Probe Scan function
(K type not included.)

Measurement Range

-60 to +500

o

C (-76 to +932 oF)

-64 to +1400°C (-83.2 to +1999°F)

Operating Range 0~50°C (32~122°F)
Accuracy,

(Tobj=15-35°C,Tamb=25°C)

+/-1.0°C (1.8°F)

Accuracy

(Tobj=-33-500°C,Tamb=23 +/- 3°C)

+/-2% of reading or 2°C (4°F) whichever is greater

+/-1% of reading or 1°C (1.8°F)

whichever is

greater
(Test under Tamb=23+/-6°C)

Resolution

(-9.9~199.9°C) 0.1°C/0.1°F

Response Time

(90%) 1sec

Distance:Spot 11:1

Battery Life Typ.180, min 140 hours continuous use (Alkaline, without Laser and Back Light.)

Dimensions 175.2 x 39.0 x 71.9mm

Weight 179 grams including batteries (AAA*2pcs)

Note: Under the electromagnetic field of 3V/m from 200 to 600 MHz, the maximum error is 10

o

C ( 18 oF ).

I.R.T.

o

C (-4~149°F).

g

s of

g

es in the ambient

o

C(32°F) or +50oC

)

to stabilize

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not possible

whichever is

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F ).

High Accuracy Infrared + Type T Thermocouple – Operating Instructions

The IRT is a non-contact infrared thermometer for measuring surface temperature (infrared) and contact measurements
(optional probe). Please remember to keep away from
children and don’t use it for safety related applications.

Simply aim the thermometer at the desired target
and press the trigger (Meas. key ) to display the

(Default Screen)

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○

surface temperature. The Distance:Spot ratio is
11:1, which means the target diameter will be 1-inch
at an 11-inch distance from the target. Please make
sure the target area is within the field of view.

MAIN FUNCTION

Press Emissivity key (○1) for setting the emissivity.

Press Mode key (

Press Emissivity key (○
(○5) to confirm. The emissivity can be changed from 0.10 (10E) to 1 (100E) depending on the surface being measured.

○5) to scroll between the following functions:

Here will show the current emissivity value. The default emissivity is 0.95. For more information on emissivity
values of various surfaces visit www.thermoworks.com.

1

), then press Up key (○4) or Down key (○2) to set the emissivity, then press Mode ke

Press Mode key ( ) for the Maximum (MAX), Minimum (MIN), Difference between MAX and MIN (DIF)

and Average (AVG) modes. During the measurement, the modes reading will be displayed beside the
mode icon.

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○

Press Up key ( ) or Down key ( ) key to change the High Alarm (HAL) or Lo Alarm (LAL) , then press
Meas. key ( ) to confirm. The alarm will sound if the readings are above the high alarm or below the low alarm.

4

○

9

○

Connect an optional thermocouple probe into the Thermocouple socket ( ) and insert the probe into the target

2

○

10

○

medium. The thermometer will display the temperature. To see the Min or Max temp during the probe
measurement, hold down the Up key ( ) or Down key ( ).

Use caution after measuring high temperatures, the probe may be hot.

After measure high temp, the probe may remain HOT for a while.

4

○

2

○

** 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.)

ADDITIONAL FUNCTIONS

Changing from °C to °F Press the °C/°F down button

Display Lock Sets unit to continuous measure mode without having to press the trigger. Press Lock/Up button to

Backlight While holding down the trigger (Meas. key), Press the Lock/Up button to turn backlight on. Press

Laser The laser pointer is set to on as the default. While holding down the trigger (Meas. key), press

enable. Press again to disable.

again to disable.

the °C-°F/Down button to enable or disable the laser.

1762 W. 20 S. #100, Lindon, UT 84042
Ph: 801-756-7705 Fax: [phone]
www.thermoworks.com

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 The thermometer should be stored at room temperature between -4 to 9°F (-20 to 65°C).

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:

「 」 「 」

「 」

BATTERIES

The thermometer incorporates visual low battery indication as follows:

‘Battery OK’: measurements

are 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

Item Non-contact Infrared Scan function

Measurement Range

Operating Range

Accuracy, ( Amb=20 to 26°C)* -27.4 to 32°F (-33 to 0°C): ±1.8°F (±1°C) + 0.1°

Accuracy
(Amb=20 to 26°C)

Resolution (-9.9 to 199.9°) 0.1°

Response Time (90%) 1 sec

Distance:Spot 11:1

Battery Life 180 hours typical 140 hours continuous use (Alkaline, without Laser and Back Light.)

Dimensions 6.9 H x 1.5 W x 2.8 D inches (175.2 H x 39.0 W x 71.9 D mm)

Weight 179 g including batteries (AAA*2pcs)

Note: Under the electromagnetic field of 3V/m from 200 to 600 MHz, the maximum error is 18°F (10°C)

*IR accuracy can be affected by the emissivity setting, target spot size, and rapid changes in ambient temperature. Accuracy specification based on ambient
temperature of 77°F ±2°F (25°C ±1°C).

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.

‘Hi’ or ’Lo’ is displayed when the temperature being measured is outside of the settings of
HAL and LAL (high and low alarms).

‘Er2’ is displayed when the thermometer is exposed to rapid changes in the ambient
temperature. ‘Er3’ is displayed when the ambient temperature exceeds 32°F (0°C) or 122°F
(50°C). The thermometer should be allowed plenty of time (minimum 30 minutes) to stabilize
to the working/room temperature.

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 batter
and turn on. If the error message remains please contact the ThermoWorks’ Technical
Support for further assistance.

‘Battery Low’: battery needs to be

replaced, measurements are still possible

‘Battery Exhausted’: measurements are

not possible

-67 to 536°F (-55 to 280°C)

Thermocouple Probe Scan function
(T type; not included.)

-76 to 662°F (-60 to 350°C)

32 to 122°F (0 to 50°C)

Thermocouple Accuracy:

32 to 149°F (0 to 65°C): ±1.8°F (±1°C);
above 148°F (65°C): ±1.5%

below 23°F (-5°C): ±1.8°F (±1°C),
23 to 148°F (-5 to 65°C): 0.9°F (±0.5°C),
above 148°F (65°C): ±1%

Made in Taiwan

CERTIFICATE OF CONFORMANCE

The manufacturer of this instrument has implemented a quality assurance system
under ISO 9001:2000 cer tified quality system and fully follow ISO GUM (Guide to the
Expression of Uncertainty in Measurement) to evaluate the uncertainty of temperature
and resistance standards, guarantee performance as below;

Calibration

Temperature

-30°C ±2.0°C ±0.3°C 0.3°C
0°C ±2.0°C ±0.4°C 0.1°C

100°C ±2.0°C ±0.4°C 0.1°C
200°C ±4.0°C ±0.5°C 0.1°C

Note: Assume the operation ambient temperature under 23 ± 3°C

Furthermore, we certify that this infrared thermometer has been inspected and found to
comply with published specifications. This device has been calibrated by temperature
and/or resistance standards that are traceable to NIST (U.S. National Institute of
Standards and Technology) or NML (National Measurement Laboratory) of Taiwan,
and the calibration procedure corresponds with generally accepted regulations and
standards.

Max Error Target Accuracy Target Stability

ThermoWorks, Inc.

Utah, U.S.A.

www.thermoworks.com