User Manual
1
All-Purpose Laser Sensor
LR-TB2000 Series
Instruction Manual
Read this manual before using the product in order to achieve maximum performance.
Keep this manual in a safe place after reading it so that it can be used at any time.
The following symbols alert you to important messages. Be sure to read these
messages carefully.
1 Introduction
Safety Information for LR-TB Series
Safety Precautions on Laser Product
This product uses a semiconductor laser as its light source.
* The laser classification for FDA (CDRH) is implemented based on IEC60825-1 in 
accordance with the requirements of Laser Notice No.50.
 Laser warning and explanation labels
z Laser warning and explanation labels
• Attached to the cable
• Included with the product
*  For a Class 2 laser product, select from the warning and explanation labels included 
in the package the appropriate warning and explanation label according to the coun-
try and region where the Class 2 laser product will be used. Then, affix the warning 
and explanation label over top of the existing warning and explanation label on the 
product.
Precautions on Regulations and Standards
 CSA Certificate
LR-TB series complies with the following CSA and UL standards and has been certified by 
CSA (Class 2252 06 / Class 2252 86). 
• Applicable standard: CAN/CSA C22.2 No.61010-1
UL61010-1
• Use the following power supply.
CSA/UL certified power supply that provides Class 2 output as defined in the CEC 
(Canadian Electrical Code) and NEC (National Electrical Code), or CSA/UL certified power 
supply that has been evaluated as a Limited Power Source as defined in CAN/ CSA-C22.2 
No. 60950-1/UL60950-1
• Use this product at the altitude of 2000 m or less.
• Use this product at the level of overvoltage category I.
• Use this product at pollution degree 3.
• Indoor use only.
 CE Marking
Keyence Corporation has confirmed that this product complies with the essential 
requirements of the applicable EC Directive, based on the following specifications.
Be sure to consider the following specifications when using this product in a member state 
of the European Union.
z EMC Directive (2004/108/EC)
• Applicable standard EMI : EN60947-5-2, Class A
EMS : EN60947-5-2
z Low-voltage Directive (2006/95/EC)
• Applicable standard: EN61010-1, EN60825-1
• Use the power supply that has been evaluated as a Limited Power Source as defined in 
IEC60950-1/EN60950-1.
• Use this product at the altitude of 2000 m or less.
• Use this product at the level of overvoltage category I.
• Use this product at pollution degree 3.
• Indoor use only
Remarks: These specifications do not give any guarantee that the end-product with this 
product incorporated complies with the essential requirements of the EMC 
Directive.
The manufacturer of the end-product is solely responsible for the compliance of 
the end-product itself according to the EMC Directive.
It indicates a hazardous situation which, if not avoided, could result in 
death or serious injury.
It indicates a situation which, if not avoided, could result in product 
damage as well as property damage.
• This product is only intended to detect object(s). Do not use this 
product for the purpose to protect a human body or part of a human 
body.
• This product is not intended for use as an explosion-proof product. 
Do not use this product in a hazardous location and/or potentially 
explosive atmosphere.
• This product uses DC power. The product may explode or burn if an 
AC voltage is applied.
• Do not wire the cable along with power lines or high-tension lines, 
as the sensor may malfunction or be damaged due to noise.
• When using a commercially available switching regulator, ground 
the frame ground terminal and ground terminal.
• Do not use this product outdoors or in a location in which its 
light-receiving surface will come in direct contact with stray ambient 
light.
• Use of controls or adjustments or performance of procedures other 
than those specified herein may result in hazardous radiation 
exposure.
• Follow the instructions mentioned in this manual. Otherwise, injury
to the human body (eyes and skin) may result.
• Laser emission from this product is not automatically stopped when 
it is disassembled. Do not disassemble this product.
• Precautions on Class 2 Laser Product
- Do not stare into the direct or specularly reflected beam.
- Do not direct the beam at people or into areas where people
might be present.
- Be careful of the path of the laser beam.
If there is a possibility that the operator may be exposed to the 
specular or diffuse reflections, block the beam by installing a 
protective enclosure.
- Install this product so that the path of the laser beam is not as the 
same height as that of human eye.
• Precautions on Class 1 Laser Product
- Do not stare into the direct or specularly reflected beam.
Item Description
Model
LR-TB2000
LR-TB2000CL
LR-TB2000C
Wavelength 660 nm
Pulse width 4.3 ns
FDA(CDRH)
Part1040.10
Laser class* Class 2 laser product Class 1 laser product
Output 1.0 mW 390 μW
JIS C 6802/
IEC 60825-1
Laser class Class 2 laser product Class 1 laser product
Output 1.0 mW 390 μW
WARNING
NOTICE
WARNING
NOTICE
WARNING
1567
1234
XX-XXXX
DISP
MODE
1
2
Laser emission 
point 
Laser warning and 
explanation label
Class 2 (English) Class 1
Class 2 (included with the product in each language)
96M12738










