ThermoWorks IRFS User Manual

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 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. The thermometer
should be stored at room temperature between –20 to +65°C (-4~149°F).

LCD ERROR MESSAGES

The thermometer incorporates visual diagnostic messages as follows:

「 」

「 」

‘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 battery 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
Model TN403, TN403L (with Laser)

I.R.F.S.

TTNN440033 // TTNN440033LL TThheerrmmoommeetteerr OOppeerraattiinngg IInnssttrruuccttiioonnss

Model: TN403, TN403L (with Laser).

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 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. The thermometer
should be stored at room temperature between –20 to +65°C (-4~149°F).

LCD ERROR MESSAGES

The thermometer incorporates visual diagnostic messages as follows:

「 」

「 」

‘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 battery 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.

TTNN440033 // TTNN440033LL TThheerrmmoommeetteerr OOppeerraattiinngg IInnssttrruuccttiioonnss

Model: TN403, TN403L (with Laser).

The thermometer is a non-contact infrared thermometer, and always with Real-Time Maximum (MAX) data.
Please remember to keep away from children and don’t use it for safety related applications.

(Default Screen)

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 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. The thermometer
should be stored at room temperature between –20 to +65°C (-4~149°F).

LCD ERROR MESSAGES

The thermometer incorporates visual diagnostic messages as follows:

「 」

「 」

‘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 battery 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
Model TN403, TN403L (with Laser)

Measurement Range

-60 to +500

o

C (-76 to +932 oF)

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

Emissivity 0.95 fixed

Resolution (-9.9~199.9°C) 0.1°C/0.1°F

Response Time (90%) 1sec

Distance:Spot 11:1

1. Simply aim the thermometer at the measure target with Lens (○

4

) and press

Meas. key (○

6

) to display the surface temperature.

2. During the measurement, the MAX reading will be displayed beside the
icon.

3. The Distance:Spot is 11:1. Please make sure the target area is within the field
of view.

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 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. The thermometer
should be stored at room temperature between –20 to +65°C (-4~149°F).

LCD ERROR MESSAGES

The thermometer incorporates visual diagnostic messages as follows:

「 」

「 」

‘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 battery 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

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 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. The thermometer
should be stored at room temperature between –20 to +65°C (-4~149°F).

LCD ERROR MESSAGES

The thermometer incorporates visual diagnostic messages as follows:

「 」

「 」

‘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 battery 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
Model TN403, TN403L (with Laser)

Measurement Range

-60 to +500

o

C (-76 to +932 oF)

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

Emissivity 0.95 fixed

Resolution (-9.9~199.9°C) 0.1°C/0.1°F

Response Time (90%) 1sec

Distance:Spot 11:1

Battery Life Typ.18, min 14 hours continuous use

Dimensions 175.2 x 39.0 x 71.9mm

Weight 179 grams including batteries (AAA*2pcs)

** The thermometer will automatically shut off if left idle for more than 15sec.

Made in Taiwan

Infrared Food Safety Thermometer – Operating Instructions

The thermometer is a non-contact infrared thermometer, and always with Real-Time Maximum (MAX) data.
Please remember to keep away from children and don’t use it for safety related applications.

(Default Screen)

ADD VALUE:

o

C or oF

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.

* Note: Under the electromagnetic field of 3V/m from 350 to 550MHZ, the maximum error is 8°C (14.4°F).

1. Simply aim the thermometer at the measure target with Lens (○4) and press
Meas. key (○

6

) to display the surface temperature.

2. During the measurement, the MAX reading will be displayed beside the
icon.

3. The Distance:Spot is 11:1. Please make sure the target area is within the field
of view.

12:1

Press Mode key (○

LCD Backlight: always on.

:

ClassII Laser: always enable (only for TN403L)

:

2

) for oC or oF transferred.

enabled.

switching.

`, UT 840{Ó • 800.393.6434

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 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. The thermometer
should be stored at room temperature between –20 to +65°C (-4~149°F).

LCD ERROR MESSAGES

The thermometer incorporates visual diagnostic messages as follows:

‘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 battery 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

When the ‘Low Battery’ icon indicates the battery is low, the battery should be replaced immediately with AAA,

are possible

‘Battery Low’: battery needs to be

replaced, measurements are still possible

‘Battery Exhausted’: measurements

are not possible

1.5V batteries. Please note: It is important to turn the instrument off before replacing the battery otherwise the
thermometer may malfunction.

Measurement Range

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)
Emissivity 0.95 fixed

Resolution (-9.9~199.9°C) 0.1°C/0.1°F

Response Time (90%) 1sec

Tobj=0 to 65°C, Tamb=23±2°C

Tamb=23±2°C

Distance:Spot 11:1

Battery Life Typ.18, min 14 hours continuous use

Dimensions 175.2 x 39.0 x 71.9mm

Weight 179 grams including batteries (AAA*2pcs)

** The thermometer will automatically shut off if left idle for more than 15sec.

Dispose of used battery promptly and keep away from children.

o

-60 to +500

-55 to +280°C (-67 to 536°F)

C (-76 to +932 oF)

0 to +65°C=± 1°C (2°F)

<0°C=±1°C (±2°F) ±0.1 degree/degree

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

>+65°C (149°F)=1.5% of reading

0.97 Fixed

12:1

Typ. 180, min 140 hours continuous use

Made in Taiwan

Max Error Target Accuracy Target Stability

ThermoWorks, Inc.

1762 W. 20 S. #100

Lindon, UT 84042

www.thermoworks.com

0°C ±1.0°C ±0.4°C 0.1°C

-30°C ±1.0°C ±0.3°C 0.3°C

Calibration

Temperature

100°C ±1.5°C ±0.4°C 0.1°C

200°C ±3.0°C ±0.5°C 0.1°C

CERTIFICATE OF CONFORMANCE

The manufacturer of this instrument has implemented a quality assurance system

under ISO 9001:2000 certified 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;

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.