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Product Index :: Sensing Solutions :: Photoelectric Sensors :: Built-in Amplifier

E3T Photoelectric Sensor with Built-in Amplifier

(Ultra-compact and Thin Type)

E3T-FL BGS Reflective Models	E3T-FD Diffuse-reflective Models
E3T-ST/FT Through-beam Models	E3T-SL Convergent-reflective Models
E3T-SR Retro-reflective Models

* Ordering information

* Specifications

* Configurations

* Dimensions, and etc

can be found in our PDF brochure.

New Retro-reflective Sensors Added to the Series. Further Contributions to Equipment Downsizing.

Coaxial Retro-reflective for reliable positioning applications.
Series now includes BGS* reflective model with black/white error of 15%.
Easy optical axis adjustment with emitter axis accuracy of ±2° (Through-beam Model).
Noise and external light resistance enhanced to that of E3Z or equivalent.
Output reverse polarity protection provides reliable support against incorrect wiring.
The Series includes models with M12 Smartclick pre-wired connectors (-M1TJ).

* BGS (Background Suppression) technology prevents detecting background objects.

Features

E3T-SR4[]: Retro-reflective Sensor with Enhanced Compactness and High Performance NEW!

Perform Detection From a Small Hole

With a coaxial optical system, the lens diameter is only 2 mm.
Sufficient incident light is obtained even through a small hole.
The Coaxial Retro-reflective Sensor can be used for reliable application with positioning.

Improved Stability of Short-distance Detection

A detection distance as short as 10 mm can be used with a Tape Reflector.
Detection is stable through a hole whether the distance is 10 mm or 100 mm (except in combination with the E39-R4).

E3T-FL1[]/-FL2[]: The Slimmest BGS (Background Suppression) Reflective Photoelectric Sensors in the World

Ultra slim at 3.5 mm, black/white error of only 15%, hysteresis of 0.5 mm max. (E3T-FL1[]), and sensing capability to 2 mm or less (E3T-FL2[]).
For example, the E3T-FL1[] can stably detect a black object at 12 mm, including sensing distance variations, without being affected by a white background at 20 mm.
OMRON provides BGS performance sharper than the previous Convergent-reflective Sensors.

Sensing Distance Diagram

Dramatic Improvement in Black/White Error. Application - Detecting Passage or Accumulation of Parts on a Feeder

Upgraded Products: Four E3T Types

E3T-ST Through-beam (Side View) Models/E3T-FT Through-beam (Flat) Models
	• Long-distance detection Side-view Models: 1 m, Flat Models: 500 mm. • 300-mm Side-view and Flat Models are also available to prevent mutual interference. • Minimum detection object: 0.5 mm dia. (with slit attached). • Optical axis accuracy of ±2° for installation reliability. • Easily distinguish between color-coded Emitter and Receiver lenses.
E3T-SL Convergent-reflective Models (Side-view)
	• Minimum detection object: 0.15 mm dia. • Resistant to background and surrounding metal
E3T-FD Diffuse-reflective Models (Flat)
	• Minimum detection object: 0.15 mm dia. • Only 3.5 mm wide for installation in small gaps.
E3T-SR Retro-reflective Models (Side-view)
	Three models for different reflector characteristics. • E3T-SR2[]1: With E39-R4, Sensing distance: 200 mm • E3T-SR3[]1: With E39-R37, Sensing distance: 100 mm • E3T-SR4[]2: With E39-R4, Sensing distance: 200 mm With E39-R37-CA, Sensing distance: 100 mm 1. Twin-lens Optical System *2. One-lens Coaxial Optical System

Product Upgrades for Greater Stability and Reliability

Installation Reliability:

Great Reductions in Time Required for Adjusting Through-beam Sensor Optical Axes

Even at this size the Emitter axis accuracy is ±2°.
High-precision alignment technology has enabled maximum reduction of light axis fluctuations of the Emitter beam. The margin for the received light is doubled if the Emitter and Receiver mechanical axes are aligned (at the rated sensing distance).

Wiring Reliability:

Sensor Protection Against Wiring Mistakes

New output reverse polarity protection function added.
(A reverse polarity protection diode has been added to the output line. This has changed the output residual voltage specification. Please check under Specifications.)

Operating Reliability:

Improved Detection Stability for Reflective Sensors

Uses the well-praised disturbance light bypass algorithm from the E3Z Series.
Environmental resistance to inverter fluorescent lights and other light interference has been greatly improved.

Ecological:

Complete Compliance with RoHS

Lead, mercury, cadmium hexachrome, polybrominated biphenyl (PBB), and polybrominated diphenyl ether (PBDE) have all been removed. And burnable polyethylene packaging has been used.