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E3C-LDA Series

 Photoelectric Sensors with Separate Digital Amplifiers (Laser-type Amplifier Units)

 

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Photoelectric Sensors with Separate Digital Amplifiers (Laser-type Amplifier Units)

E3C-LDA Series

• All three beam types provide ample long-distance 

detection of 1,000 mm for Diffuse Reflective Models.

• Coaxial Retroreflective Models provide detection 

performance equivalent to through-beam sensors, 
simplifying Sensor installation.

• Industry-first variable focal point and optical axis 

alignment mechanisms. Optimize for workpieces and 
improve inspection quality.

• Drive the laser with an Amplifier the same size as a 

Digital Fiber Amplifier.

Ordering Information

Sensor Heads

Note: Select a reflector (sold separately) according to the application. 

Amplifier Units

Amplifier Units with Cables

Amplifier Units with Connectors

Sensing method

Focus

Model number

Remarks

Diffuse reflective

Spot

E3C-LD11

Mounting a Beam Unit (sold separately) allows the use of line and area 
beams.

Line

E3C-LD21

This model number is for the set consisting of the E39-P11 mounted to 
the E3C-LD11.

Area

E3C-LD31

This model number is for the set consisting of the E39-P21 mounted to 
the E3C-LD11.

Coaxial retroreflective
(with MSR)

Spot (variable)

E3C-LR11 (See note.) Mounting a Beam Unit (sold separately) allows the use of line and area 

beams.

Spot (2.0-mm fixed dia.) E3C-LR12 (See note.) ---

Item

Appearance

Functions

Model

NPN output

PNP output

Advanced 
models

Twin-output 
models

Area output, self-diagnosis, 
differential operation

E3C-LDA11

E3C-LDA41

External-input 
models

Remote setting, counter, dif-
ferential operation

E3C-LDA21

E3C-LDA51

ATC function

ATC (Active Threshold Con-
trol)

E3C-LDA11AT

E3C-LDA41AT

Analog output

Analog output

E3C-LDA11AN

E3C-LDA41AN

Item

Appearance

Functions

Model

NPN output

PNP output

Advanced 
models

Twin-output 
models

Area output, self-diagnosis, 
differential operation

E3C-LDA6

E3C-LDA8

External-input 
models

Remote setting, counter, dif-
ferential operation

E3C-LDA7

E3C-LDA9

ATC function

ATC (Active Threshold Con-
trol)

E3C-LDA6AT

E3C-LDA8AT

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