Omron E3T-ST22, E3T-ST11, E3T-ST13, E3T-ST14, E3T-ST23 Datasheet

1E3T

Miniature Square Photoelectric Sensor in plastic housing

E3T

• Precision pinpoint LED

• 3.5 mm thin flat shape or 6.6 mm side

view shape where space is crucial

•IP67

• Pulse synchronisation for high

ambient light immunity

Features

3.5 mm flat model with background supression (BGS) with highest repeatability even for differently coloured objects.

Application

Object detection through small holes

• The precision pinpoint LED of the through-beam models provides appropriate sensing distances for very precise and reliable detection even through smallest slits and gaps with e.g. 0.5 mm dia.

• The coaxial optics and the small focal lens of the retro-reflective models allow the detection of small (dia 2 mm) objects or through small holes (dia 2 mm).

Minimal black/white error Unique light receiving lens shape

for high precision alignment

New mounting technology for reliable background

suppression in 3.5 mm flat housing

E3T-FL1@

White paper Black paper

0

5

10

15

20

25

(mm)

Light receiving lens

Rear Front Side

Flip chip (IC)

Light receiving element

2 Standard Photoelectric Sensors

Application

Ordering Information

Sensors

E3T-SL limited-reflective models (side view)

• Minimum detection object: 0.15 mm dia.

• Limited-reflective optics reduce the influence of changing backgrounds and surrounding metal for enhanced detection stability.

E3T-FD Diffuse-reflective Models (Flat)

• Minimum detection object: 0.15 mm dia.

• 3.5 mm thickness for installations with limited space.

Sensing

method

Appearance

Connection method

Sensing

distance

Opera-

tion

mode

Order code

NPN output PNP output

Through-

beam

Side-view

--

2m

*1

*1. For pre-wired models with robotic cables add '-R' to the order code (example: E3T-FT21R 2M). For details on robotic cables refer to page 12.

*2

*2. For pre-wired models with M8 connector plug or e-CON connector contact your OMRON representative

Light-ON E3T-ST11 2M E3T-ST13 2M

Dark-ON E3T-ST12 2M E3T-ST14 2M

Light-ON E3T-ST21 2M E3T-ST23 2M

Dark-ON E3T-ST22 2M E3T-ST24 2M

Flat

Light-ON E3T-FT11 2M E3T-FT13 2M

Dark-ON E3T-FT12 2M E3T-FT14 2M

Light-ON E3T-FT21 2M E3T-FT23 2M

Dark-ON E3T-FT22 2M E3T-FT24 2M

Retro-

reflective

Side-view

*3

*3. Values in parentheses indicate the minimum required sensing distance between the sensor and the reflector. For applications with shorter distances between the

sensor and the reflector contact your OMRON representative.

Light-ON E3T-SR41-C 2M*4E3T-SR43-C 2M

*4

*4. Order reflector separately. For ordering models with included reflectors contact your OMRON representative.

Dark-ON E3T-SR42-C 2M*4E3T-SR44-C 2M

*4

Diffuse-

reflective

Flat

Light-ON E3T-FD11 2M E3T-FD13 2M

Dark-ON E3T-FD12 2M E3T-FD14 2M

Limited-

reflective

Side-view

Light-ON E3T-SL11 2M E3T-SL13 2M

Dark-ON E3T-SL12 2M E3T-SL14 2M

Light-ON E3T-SL21 2M E3T-SL23 2M

Dark-ON E3T-SL22 2M E3T-SL24 2M

Diffuse

reflective

(background

suppression)

Flat

Light-ON E3T-FL11 2M E3T-FL13 2M

Dark-ON E3T-FL12 2M E3T-FL14 2M

Light-ON E3T-FL21 2M E3T-FL23 2M

Dark-ON E3T-FL22 2M E3T-FL24 2M

Red light

1 m

(Sensitivity Adjustment Unit can be used.)

300 mm

500mm

300 mm

200 mm [30 mm]

100 mm [10 mm]

5 to 30 mm

5 to 15 mm

5 to 30 mm

1 to 15 mm

1 to 30 mm

3E3T

Accessories (Order Separately)

Slits

Reflectors

Sensitivity Adjustment Unit

Mounting Brackets

Note: When using Through-beam models, order one bracket for the Receiver and one for the Emitter.

Slit width

Sensing distance

(typical)

Minimum detect-

able object (typical)

Order code Quantity Remarks

0.5 mm dia. 100 mm 0.5 mm dia. E39-S63

2 (one each for emitter and receiver)

Plug-in type round slits Can be used with E3T-ST1@ Through-beam models.

1 mm dia. 300 mm 1 mm dia.

0.5 mm dia. 50 mm 0.5 mm dia. E39-S64

Plug-in type round slits Can be used with E3T-FT1@ Through-beam models.

1 mm dia. 100 mm 1 mm dia.

Shape Type Sensing distance

*1

*1. Values in parentheses indicate the minimum required distance between the Sensor and Reflector.

Minimum detectable

object (typical)

Order code Remarks

Small reflector

200 mm (30 mm) 2 mm dia E39-R4

100 mm (10 mm) E39-R37-CA Reflectors E39-_-CA are optimised

for operation with E3T-SR4. Please verify the performance when using other reflectors and reflective tapes.

Tape reflector

100 mm (10 mm) E39-RS1-CA

100 mm (10 mm) E39-RS2-CA

100 mm (10 mm) E39-RS3-CA

Appearance Sensing distance (typical) Model Quantity Remarks

300 to 800 mm E39-E10 1

Can be used with the E3T-ST1@ Though-beam Models.

Appearance Model Quantity Remarks

E39-L116

1

Can be used with the E3T-S@@@

Side-view Models.

(A securing nut plate is provided with the

Mounting Bracket.)

E39-L117

E39-L118

E39-L119

Can be used with the E3T-F@@@

Flat Models.

E39-L120

4 Standard Photoelectric Sensors

Rating and Specifications

Item

Through-beam Retro-reflective Diffuse-reflective

Side-view Flat Side-view Flat

NPN PNP NPN PNP NPN PNP NPN PNP

E3T-ST11 E3T-ST12 E3T-ST21 E3T-ST22

E3T-ST13 E3T-ST14 E3T-ST23 E3T-ST24

E3T-FT11 E3T-FT12 E3T-FT21 E3T-FT22

E3T-FT13 E3T-FT14 E3T-FT23 E3T-FT24

E3T-SR41 E3T-SR42

E3T-SR43 E3T-SR44

E3T-FD11 E3T-FD12

E3T-FD13 E3T-FD14

Sensing distance E3T-ST1@

E3T-ST2@

1 m 300 mm

E3T-FT1@ E3T-FT2@

500 mm 300 mm

200 mm (30 mm) with E39-R4

*1

100 mm (10 mm) with E39-R37-CA

*1

*1. Values in parentheses indicate the minimum required distance between Sensor and Reflector.

5 to 30 mm (50 x 50 mm white paper)

Standard sensing object Opaque, 2 mm dia. min. Opaque, 1.3 mm dia. min. Opaque, 27 mm dia. min. ---

Minimum detectable object (typical)

2 mm dia opaque object 1.3 mm dia opaque object 2 mm dia. (sensing dis-

tance of 100 mm)

0.15 mm dia. (sensing distance of 10 mm)

Hysteresis (white paper) --- 6 mm max.

Black/white error ---

Directional angle Emitter: 2° to 20°

Receiver: 2° to 70°

Emitter: 3° to 25° Receiver: 3° min.

2° to 20° ---

Light source (wavelength)

Red LED (“Pin-point” LED) λ = 650 nm

Power supply voltage 12 to 24 VDC ±10%, ripple (p-p) 10% max.

Current consumption Emitter: 10 mA max.

Receiver: 20 mA max.

20 mA max.

Control output Load power supply voltage: 26.4 VDC max.

Load current: 50 mA max. (residual voltage: 2 V max. for load current of 10 to 50 mA, 1 V max. for load current of less than 10 mA) Open collector output Light ON: E3T-@@@1 and E3T-@@@3 Dark ON: E3T-@@@2 and E3T-@@@4

Protection circuits Power supply and control output reverse polarity

protection Output short-circuit protection

Power supply and control output reverse polarity protection Output short-circuit protection, Mutual interreference prevention, surge suppressor

Power supply and control output reverse polarity protection Output short-circuit protection, Mutual interreference prevention

Response time Operate or reset: 1 ms max.

Ambient illumination Incandescent lamp: 5,000 lx max.

Sunlight: 10,000 lx max.

Ambient temperature range

Operating: -25 to 55 °C Storage: -40 to 70 °C (with no icing or condensation)

Ambient humidity range Operating: 35% to 85%

Storage: 35% to 95% (with no condensation)

Insulation resistance 20 MΩ min. at 500 VDC

Dielectric strength 1,000 VAC, 50/60 Hz for 1 min

Vibration resistance Destruction: 10 to 2,000 Hz, 1.5 mm double amplitude or 300 m/s2 for 0.5 hrs each in X, Y, and Z directions

Shock resistance Destruction: 1,000 m/s2 3 times each in X, Y, and Z directions

Degree of protection IP67 (IEC60529)

Connection method Pre-wired (standard length: 2 m)

Weight Approx. 40 g Approx. 20 g

Materials Case PBT (polybutylene terephthalate)

Display window

Denatured polyarylate

Lens Denatured polyarylate Methacrylic resin Denatured polyarylate

Accessories Instruction manual, Installation screws (Side-view Models: M2 x 14, Flat Models: M2 x 8), Nuts,

Spring washers, Flat washers

5E3T

Item

Limited-reflective Diffuse-reflective (background suppression)

Side-view Flat

NPN PNP NPN PNP NPN PNP NPN PNP

E3T-SL11 E3T-SL12

E3T-SL13 E3T-SL14

E3T-SL21 E3T-SL22

E3T-SL23 E3T-SL24

E3T-FL11 E3T-FL12

E3T-FL13 E3T-FL14

E3T-FL21 E3T-FL22

E3T-FL23 E3T-FL24

Sensing distance 5 to 15 mm

(50 x 50 mm white paper)

5 to 30 mm (50 x 50 mm white paper)

1 to 15 mm (50 x 50 mm white paper)

1 to 30 mm (50 x 50 mm white paper)

Standard sensing object ---

Minimum detectable object (typical)

0.15 mm dia. (sensing distance of 10 mm) 0.15 mm dia non-glossy object (sensing distance of 10 mm)

Hysteresis (white paper)

2 mm max. 6 mm max. 0.5 mm max. 2 mm max.

Black/white error --- 15% max.

Directional angle ---

Light source (wavelength)

Red LED (“Pin-point” LED) λ = 650 nm

Power supply voltage 12 to 24 VDC ±10%, ripple (p-p) 10% max.

Current consumption 20 mA max.

Control output Load power supply voltage: 26.4 VDC max.

Load current: 50 mA max. (residual voltage: 2 V max. for load current of 10 to 50 mA, 1 V max. for load current of less than 10 mA) Open-collector output Light ON: E3T-@@@1 and E3T-@@@3 Dark ON: E3T-@@@2 and E3T-@@@4

Protection circuits Power supply and control output reverse polarity protection

Output short-circuit protection, Mutual interference prevention

Response time Operate or reset: 1 ms max.

Ambient illumination Incandescent lamp: 5,000 lx max.

Sunlight: 10,000 lx max.

Ambient temperature range

Operating: -25 to 55 °C Storage: -40 to 70 °C (with no icing or condensation)

Ambient humidity range Operating: 35% to 85%

Storage: 35% to 95% (with no condensation)

Insulation resistance 20 MΩ min. at 500 VDC

Dielectric strength 1,000 VAC, 50/60 Hz for 1 min

Vibration resistance Destruction: 10 to 2,000 Hz, 1.5 mm double amplitude or 300 m/s2 for 0.5 hrs each in X, Y, and Z directions

Shock resistance Destruction: 1,000 m/s2 3 times each in X, Y, and Z directions

Degree of protection IP67 (IEC60529)

Connection method Pre-wired (standard length: 2 m)

Weight Approx. 20 g

Materials Case PBT (polybutylene terephthalate)

Display window

Denatured polyarylate

Lens Denatured polyarylate

Accessories Instruction manual, Installation screws (Side-view Models: M2 x 14, Flat Models: M2 x 8), Nuts,

Spring washers, Flat washers

6 Standard Photoelectric Sensors

Engineering Data (Typical)

Parallel Operating Range

Through-beam

E3T-ST1@ + E39-S63 Slit (Order Separately)

(Enlarged graph)

E3T-ST2@

E3T-FT1@ + E39-S64 Slit (Order Separately)

(Enlarged graph)

E3T-FT2@

Retro-reflective

E3T-SR4@

200

150

100

50

0

50

100

150

200

0.5-dia Slit

Distance X (m)

1-dia Slit

0.4 0.8 1.2 1.6 1.2

Distance Y (mm)

Without Slit

Y

X

80

60

40

20

0

20

40

60

80

40 80 120 160 200

Distance Y (mm)

1-dia Slit

0.5-dia Slit

Distance X (mm)

Y

X

Y

X

20

15

10

5

0

5

10

15

20

25

200 400 800600

Without Slit

Distance X (mm)

Distance Y (mm)

1-dia Slit

0.5-dia Slit

200

150

100

50

0

50

100

150

200

0.4 0.6 0.8 1 1.2 1.40.2

1-dia Slit

Without Slit

Distance X (m)

Y

X

Distance Y (mm)

0.5-dia Slit

80

60

40

20

0

20

40

60

80

40 80 120 160 200

Distance Y (mm)

0.5-dia Slit

1-dia Slit

Distance X (mm)

Y

X

Y

X

60

40

20

0

20

40

60

80

200 400 600

800

1-dia Slit

Distance X (mm)

Distance Y (mm)

Without Slit

0.5-dia Slit

Distance X (mm)

40

30

20

10

0

−10

−20

−30

−40

Distance Y (mm)

100 4000 300200

Y

X

E3T- SR4@+E39-R37-CA

E3T- SR4@+E39-R4

7E3T

Operating Range

Inclination Characteristics

Diffuse-reflective Limited-reflective

E3T-FD1@ E3T-SL1@ E3T-SL2@

Diffuse-reflective (background suppression)

E3T-FL1@ E3T-FL2@

Limited-reflective

E3T-SL1@ (Top to Bottom) E3T-SL1@ (Right to Left) E3T-SL2@ (Top to Bottom)

Sensing object: 50 x 50 mm white paper

3

2

1

0

1

2

3

4

10 20 30 40

Y

X

Distance Y (mm)

Distance X (mm)

15

10

5

0

5

10

15

51015202530

Y

X

Distance Y (mm)

Sensing object: 50 x 50 mm white paper

Distance X (mm)

3

2

1

0

1

2

3

4

10 20 30 40

Distance Y (mm)

Sensing object: 50 x 50 mm white paper

Distance X (mm)

Y

X

4

3

2

1

0

1

2

3

4

5

26841012

Sensing distance X (mm)

Distance Y (mm)

14 16

8

6

4

2

0

2

4

6

8

10

5152010 25 30 35

Sensing distance X (mm)

Distance Y (mm)

Glass

250

200

150

100

50

0

50

300

100

6020 400204060

Angle (°)

Stainless steel

Angle of inclination

+

Rate of ch

ange (%)

40

20

0

20

40

60

80

50

100

6020 400204060

+

Glass

Stainless steel

Angle of inclination

Angle (°)

Rate of ch

ange (%)

250

200

150

100

50

0

50

300

100

6020 400204060

+

Glass

Stainless steel

Angle of inclination

Angle (°)

Rate of change (%)

8 Standard Photoelectric Sensors

Exess Gain vs. Set Distance

Diffuse-reflective (background suppression)

E3T-SL2@ (Right to Left) E3T-FL1@ (Top to Bottom) E3T-FL1@ (Right to Left)

E3T-FL2@ (Top to Bottom) E3T-FL2@ (Right to Left)

Through-beam

E3T-ST1@ E3T-FT1@ E3T-ST2@

40

20

0

20

40

60

80

60

100

6020 400204060

+

Glass

Stainless steel

Angle of inclination

Rate of ch

ange (%)

Angle of inclination (°

)

15

10

5

0

5

10

15

20

402010 30020 103040

Rate of change in sensing distance (%)

Angle of inclination

White paper

Center line

+

Angle of inclination (°)

15

10

5

0

5

10

15

20

402010 30020 103040

+

Rate of change in sensing distance (%)

Angle of inclination

White paper

Center line

Angle of inclination (°)

15

10

5

0

5

10

15

20

402010 30020 103040

+

Rate of change in sensing distance (%)

Angle of inclination

White paper

Center line

Angle of inclination (°)

15

10

5

0

5

10

15

20

402010 30020 103040

+

Rate of change in sensing distance (%)

Angle of inclination

White paper

Center line

Angle of inclination (°)

100

50

30

10

5

3

1

0.5

0.3

0.1 40003000200010000

Excess gain ratio

Operating level

Set distance (mm)

100

50

30

10

5

3

1

0.5

0.3

0.1 0 400 800 1200 1600 2000

Excess gain ratio

Operating level

Set distance (mm)

14

12

10

8

6

4

2

0

1

12009006003000

Operating level

Set distance (mm)

Excess gain ratio

9E3T

Sensing Object Size vs. Sensing Distance

Retro-reflective

E3T-FT2@ E3T-SR4@

Diffuse-reflective

Limited-reflective

E3T-FD1@ E3T-SL1@ E3T-SL2@

E3T-SL1@ E3T-FD1@, E3T-SL2@

14

12

10

8

6

4

2

0

2000150010005000

1

Excess gain ratio

Operating level

Set distance (mm

)

100

50

30

10

5

3

1

0.5

0.3

0.1

Excess gain ratio (times)

3002001000

Distance (mm)

Operating

level

E3T- SR4@+E39-R37-CA

E3T- SR4@+E39-R4

100

50

30

10

5

3

1

0.5

0.3

0.1 0 10 20 30 40

Excess gain ratio

Operating level

Black paper

White paper

Set distance (mm

)

0 5 10 15 20

1000

500 300

100

50 30

10

5 3

1

0.5

0.3

0.1

Excess gain ratio

Operating level

Black paper

White paper

Set distance (mm)

100

50

30

10

5

3

1

0.5

0.3

0.1 0 10 20 30 40

Excess gain ratio

Operating level

White paper

Black paper

Set distance

(mm)

2.0

1.6

1.2

0.8

0.4

0

5 10 15 20

Min. sensing object dia. (mm)

0 5 10 15 20 25 30

10

8

6

4

2

E3T-FD1@

E3T-SL2@

Min. sensing object dia. (mm

)

Sensing object: Pin-gauge, stainless steel

Set distance (mm)

10 Standard Photoelectric Sensors

Sensing Distance vs. Material

Sensing Distance Characteristics of Sensitivity Adjustment Unit (when Completing Optical Axial Adjustment)

Limited-reflective

Diffuse-reflective

E3T-SL1@ E3T-SL2@ E3T-FD1@

Diffuse-reflective (background suppression)

E3T-FL1@ E3T-FL2@

E3T-ST1@ + E39-E10 Sensitivity Adjustment Unit (Order Serparately)

25

20

15

10

5

0

Material

Sensing distance (mm)

White paper

Stainless

Plywoodood

Cardboard

Glass sheet

Black rubber

Black paper

41,439

50

40

30

20

10

0

Material

Sensing distance (mm)

White paper

Stainless

Plywood

Cardboard

Glass sheet

Black rubber

Black paper

70

60

50

40

30

20

10

0

Material

Sensing distance (mm)

White paper

Stainless

Plywood

Cardboard

Glass sheet

Black rubber

Black paper

20

15

10

5

0

Material

Sensing distance (mm)

White paper

Stainless

Plywood

Cardboard

Glass sheet

Black rubber

Black paper

40

30

20

10

0

Material

Sensing distance (mm)

White paper

Stainless

Plywood

Cardboard

Glass sheet

Black rubber

Black paper

Min. 1/3 1/2 2/3 Max.

Adjustment dial angle

3.5

3.0

2.5

2.0

1.5

1.0

0.5

0

Measurement pattern 2

Measurement pattern 1

Sensing distance (m)

11E3T

I/O Circuit Diagrams

NPN Output

PNP Output

Model

Operation

mode

Timing charts Output circuit

E3T-@@@1 Light-ON

E3T-@@@2Dark-ON

Model

Operation

mode

Timing charts Output circuit

E3T-@@@3 Light-ON

E3T-@@@4Dark-ON

Operation indicator (orange)

Light incident

Light interrupted

ON

OFF

Output transistor

ON

OFF

Load (e.g., relay)

Operate

Reset

(Between brown and black)

4

3

1

50 mA max.

0 V

Z

D

12 to 24 VDC

Through-beam Receivers, Retroreflective and Reflective Models

Through-beam Emitters

Brown

Black

(Control

output)

Blue

Operation indicator (Orange)

Stability indicator (Green)

Load

(Relay)

Photoelectric Sensor Main Circuit

Brown

1

3

Blue

12 to 24 VDC

Photoelectric Sensor Main Circuit

ON

OFF

ON

OFF

Operate

Reset

(Between brown and black)

Operation indicator (orange)

Light incident

Light interrupted

Output transistor

Load (e.g., relay)

Operation indicator (orange)

Light incident

Light interrupted

ON

OFF

Output transistor

ON

OFF

Load (e.g., relay)

Operate

Reset

(Between blue and black leads)

4

1

3

50 mA max.

0 V

Z

D

12 to 24 VDC

Brown

Black

(Control

output)

Blue

Load

(Relay)

Photoelectric Sensor Main Circuit

Operation indicator (Orange)

Stability indicator (Green)

Through-beam Receivers, Retroreflective and Reflective Models

1

3

Through-beam Emitters

Brown

Blue

12 to 24 VDC

Photoelectric Sensor Main Circuit

Operation indicator (orange)

Light incident

Light interrupted

ON

OFF

Output transistor

ON

OFF

Load (e.g., relay)

Operate

Reset

(Between blue and black leads)

12 Standard Photoelectric Sensors

Safety Precautions

This product is not designed or rated for ensuring

safety of persons. Do not use it for such purpose.

Do not apply AC power to the E3T, otherwise the

E3T may rupture.

Do not use the product in atmospheres or environment that

exceed product ratings.

Wiring

The maximum power supply voltage is 24 VDC +10%. Before

turning the power ON, make sure that the power supply volt-

age is not more than maximum voltage.

Load short-circuit protection

The E3T incorporates a load short-circuit protection function.

If the load short-circuits, the output of the E3T will be turned

OFF. Then, recheck the wiring and turn on the E3T again to

reset the load short-circuit protection function. The load short-

circuit protection function will work if there is a current flow

that is 2.4 times larger than the rated load current. When us-

ing an inductance load, be sure that the inrush current will not

exceed 2.4 times larger than the rated current.

Mounting

When mounting the Sensor, never strike it with a heavy ob-

ject, such as a hammer. Doing so may reduce its watertight

properties. Use M2 screws and flat or spring washers to se-

cure the Sensor. (Tightening torque: 0.15 N·m max.)

Mounting the Sensor on Moving Parts

Cable Bending Rupture Test (Tough Cable Breaking Test)

The cable is repeatedly bent with power supplied to check the

number of bends until the current is turned OFF

.

L

Adjusting

Indicators

• The following graphs indicate the status of each operating level.

• Be sure to use the E3T within the stable operating range.

Use of E39-E10 Sensitivity Adjustment Unit

(Dark-ON: E3T-ST12)

1. Mount the Unit on the Receiver.

2. Set the adjuster of the Sensitivity Adjustment Unit to Max.

(Before shipping: Max.)

3. After mounting on the Sensor, adjust the optical axis and

secure the Sensor.

4. Place a workpiece between the Emitter and Receiver and

gradually turn the adjuster counterclockwise toward the Min. side. Stop turning the adjuster when the operation indicator and stability indicator (green) turn ON.

5. Remove the workpiece and confirm that the operation in-

dicator is OFF and the stability indicator (green) is ON. This completes the adjustment.

Note: If the light attenuation rate due to a workpiece is 40% or less, the stability

indicator will not turn ON whether or not light is received. When the variation of light is small such as when sensing semi-transparent workpieces, carefully perform preliminary testing.

Others

Do not install the E3T in the following locations.

• Locations subject to excessive dust or dirt

• Locations subject to direct sunlight

• Locations subject to corrosive gas

• Locations subject to contact with organic solvents

• Locations subject to vibration and shock

• Locations subject to contact with water, oil, or chemicals

• Locations subject to high humidities that might result in

condensation

! Warning

Precautions for Correct Use

Test

Specimen Standard cable

2.4 mm dia. (7/

0.127 mm dia.), 3 conductors

Robotics cable

2.4 mm (20/

0.08 mm dia.),

Test 3 conductors

Con-

tents/

condi-

tions

Bending angle (θ)

90° each to the left and right

Bending speed 50 times/min Load 200 g Operation per

bend

Once in 1 to 3 in the diagram

Curvature radius of support point (R)

5 mm

Result Approx. 14,000

times

Approx. 400,000 times

Weight

R

A

C

B

Consider models that use break resistant ca-

bles (e.g., Robotics Cables) if the Sensor

will be mounted on a moving part, such

as a robot hand. The flexing resistance of

Robotics Cable at approximately 400 thou-

sand times is far superior to that of standard

cable at approximately 14 thousand times.

Stable operation range*

Unstable operation range*

Operating level x 1.2

Operating level x 0.8

Operating level

Light

ON

OFF

Stability indicator (green)

Operation indicator (orange)

E3T-@@@1 E3T-@@@3

E3T-@@@2 E3T-@@@4

*If the E3T fs operating level is set to the stable operation range, the E3T will be in most reliable operation without being influenced by temperature change, voltage fluctuation, dust, or setting change. If the operating level cannot be set to the stable operation range, pay attention to environmental changes while operating the E3T.

Indicator

Adjuster

(At Min)

(At Center)

(At Max.)

13E3T

Dimensions

Sensors

Two, M2

9

±0.2

Emitter

7

6.6

7.7

R2.5

Two, 2.2 dia.

2.7

9

14.6

18.5

3.8

5.2

4.8

9.5

2.4-dia. vinyl-insulated round cable with 2 conductors (Conductor cross section: 0.1 mm², Insulator diameter: 0.7 mm), Standard length: 2 m

2.4-dia. vinyl-insulated round cable with 3 conductors (Conductor cross section: 0.1 mm², Insulator diameter: 0.7 mm), Standard length: 2 m

Mounting Holes

Two, M2

±0.2

Receiver

3.1

7

6.6

7.7

R2.5

Two, 2.2 dia.

2.7

9

14.6

18.5

3.8

5.2

4.8

9.5

3.45

Operation indicator*

Lens (1.3 dia.)

Stability indicator

Mounting Holes

Through-beam Models (Side-view)

E3T-ST1@ (Emitter) E3T-ST2@ (Emitter)

E3T-FT1@ (Emitter) E3T-FT2@ (Emitter)

E3T-FT1@ (Receiver) E3T-FT2@ (Receiver)

E3T-ST1@ (Receiver) E3T-ST2@ (Receiver)

1

15

2

3 4

5.9

15.6

2.4-dia. vinyl-insulated round cable with 3 conductors Standard lengths: 0.3 m and 2 m

e-CON Pre-wired Connector Model (E3T-ST@@-ECON)

Terminal

No.

Specifi-

cations 1+V

2 ---

---

3 4

Emitter: E3T-ST@@-L Receiver: E3T-ST@@-D

1

5

2

3 4

5.9

15.6

1+V

2

3

4 Output

8

±0.2

3.5

12

R0.5

Two, R0.5

8.6

Two, R0.8

14

15.8 19

1.75

4.4 8

Emitter

Optical axis

Two, 2.2 dia.

Mounting Holes

Two, M2

Through-beam Models (Flat)

1

15

2

3 4

5.9

15.6

1

+V

2

---

3

0 V

4

---

3.5

3.1

12

R0.5

Two, R0.5

8.6

2.35

Two, R2

Two, R0.8

14

15.8 19

1.75

4.4 8

8

±0.2

Lens (1.3 dia.)

Two, 2.2 dia.

Stability indicator

Mounting Holes

Operation indicator

Receiver

Optical axis

1

5

2

3 4

5.9

15.6

le

1

+V

2

---

3

0 V

4

Output

Terminal

No.

Specifications

Emitter: E3T-FT@@-L Receiver: E3T-FT@@-D

Terminal

No.

Specifications

e-CON Pre-wired Connector (E3T-FT@@-ECON)

Two, M2

Terminal

No.

Specifications

e-CON Pre-wired Connector (E3T-FT@@-ECON)

2.4-dia. vinyl-insulated round cable with 2 conductors (Conductor cross section: 0.1 mm², Insulator diameter: 0.7 mm), Standard length: 2 m

2.4-dia. vinyl-insulated round cable with 3 conductors (Conductor cross section: 0.1 mm², Insulator diameter: 0.7 mm), Standard length: 2 m

2.4-dia. vinyl-insulated round cable with 3 conductors Standard lengths: 0.3 m and 2 m

---

0 V

9

14 Standard Photoelectric Sensors

E3T- SL1@ E3T- SL2@

3.1

12

3.5

1.75

8

±0.2

11.35

2.5

19

20.8 24

4.4

8

2 2

Operation indicator

Stability indicator

Optical axis

Two, 2.2 dia.

Mounting Holes

Two , M 2

Emitter lens (1.5 dia.)

Receiver lens (2.0 dia.)

Diffuse-reflective Models (Flat)

E3T-FD1@

1

5

2

3

4

5.9

15.6

7

6.6

24.5

9.2

15

6.5

*2

20.6

3.8

5.2

2.3

2.9

2.5

*1

6.3

11

15

±0.2

Emitter lens (4.0 dia.)

Receiver lens (4.0 dia.)

Operation indicator

Stability indicator

Optical axis

Two, 2.2 dia.

Mounting Holes

Two , M 2

Limited-reflective Models (Side-view)

1

5

2

3

4

5.9

15.6

2.4-dia. vinyl-insulated round cable with 3 conductors (Conductor cross section: 0.1 mm², Insulator diameter: 0.7 mm), Standard length: 2 m

2.4-dia. vinyl-insulated round cable with 3 conductors Standard lengths: 0.3 m and 2 m

e-CON Pre-wired Connector (E3T-FD@@-ECON)

1

+V

2

---

3

0 V

4

Output

Ter minal

No.

Specifications

2.4-dia. vinyl-insulated round cable with 3 conductors (Conductor cross section: 0.1 mm², Insulator diameter: 0.7 mm), Standard length: 2 m

1

+V

2

---

3

0 V

4

Output

Ter minal

No.

Specifications

2.4-dia. vinyl-insulated round cable with 3 conductors Standard lengths: 0.3 m and 2 m

e-CON Pre-wired Connector (E3T-SL@@-ECON)

2.4-dia. vinyl-insulated round cable with 3 conductors (Conductor cross section: 0.1 mm

2

(AWG27), Insulator diameter: 0.7 mm),

Standard length: 2 m

Two, M2

7

6.6

24.5

9.2 Two, 2.2 dia.

15

4.5

20.6

3.8

5.2

2.3

2.9

6.3

11

15

±0.2

Operation indicator

Stability indicator

Optical axis lens

(2.0 dia.)

Mounting Holes

Retro-reflective Models (Side-view)

E3T- SR4@

15E3T

Accessories

3.1

12

3.5

1.75

8

±0.2

10.35

2.5

19

20.8 24

4.4

8

3

Operation indicator

Stability indicator

Optical axis

Two, 2.2 dia.

Mounting Holes

Two , M 2

Receiver lens (2.8 square)

Emitter lens (1.5 dia.)

1

5

2

3

4

5.9

15.6

Diffuse-reflective (background suppression)

E3T-FL1@ E3T-FL2@

2.4-dia. vinyl-insulated round cable with 3 conductors (Conductor cross section: 0.1 mm², Insulator diameter: 0.7 mm), Standard length: 2 m

1

+V

2

---

3

0 V

4

Output

Ter minal

No.

Specifications

2.4-dia. vinyl-insulated round cable with 3 conductors Standard lengths: 0.3 m and 2 m

e-CON Pre-wired Connector (E3T-FL@@-ECON)

13.7

9.7

2

4

23

19

Two, 2.2 dia.

1.4

4.9

4

2

Reflector

E39-R4

Reflector

Reflector tapes

E39-R37-CA

Material, reflective surface: acrylic Rear surface: ABS

10.2

8.7

(1.1)

13.7

8-R1

18.323 18.3 23

2-R1.55

Mounting Bracket: t 0.5

Reflective

surface: acrylic

Two , 3.1 dia.

ReflectorMounting bracket

Reflector: t 0.5 (adhesive tape side)

Material: Mounting plate: stainless steel (SUS301) Reflective surface: acrylic

Note: The reflective plate and mounting plate (1) come as a set.

E39-RS1-CA E39-RS2-CA E39-RS3-CA

35

Four, R1

0.5

10

80

Four, R1

70

0.5

Adhesive tape side

Four, R1

40

35

Adhesive tape side

0.5

Adhesive tape side

16 Standard Photoelectric Sensors

Accessories (Order Separately)

Slit for E3T-ST1@ Through-beam Models

E39-S63

Slit for E3T-FT1@ Through-beam Models

E39-S64

Sensitivity Adjustment Unit (for E3T-ST1@ Through-beam Models)

E39-E10

2.7

Notch

12.6

9.7

1.0±

0.05 dia.

7.4

0.5±

0.05 dia.

Two, 2.2 dia.

With Slit Attachment With Slit Attachment With Slit Attachment

Note: Align the notch direc-

tion of the Slit when installing on the Emit ter and Receiver.

Material: 0.2 mm thick stainless steel (SUS301)

12.3

12

0.5 dia.

1 dia.

(4.1)

Material: 0.1 mm thick stainless steel (SUS301)

2 dia.

Optical axis

Adjuster

90°

7.4

4

18.7

9.7

5.8

(10.1)

(15.1)

With Mounting Bracket (Example: E3T-ST11)

7.5

(17.8)

4.1

2-3.4

(Two, R2)

(Two, R1.1)

5

1.6

4

11

9.5

2.2

31.2

1.2

2.4

10

90°

R1.5 max.

(Four, R2)

Three, M2

20.5

15

3

9

7

31

24.5

31.2

Two, M2 x 14

9.7

(10.3

)

17.8

6.2

7.7

Mounting Brackets for Side-view Models

E39-L116

Material: 1.2 mm thick stainless steel (SUS304)

(Two, R1.7)

(Two, R1.2)

17E3T

23

20.5

15

3

9

7

Two, M2 x 14

(10.3)

11.2

7.7

3.1

1811.5

11.2

3.4

4.5

2-R2(Two, R1.7)

90°

R1 max.

2.4

(23)

15

9

4

9

2-2.2

5

10

(11.2)

10.2

16.3

11.2

6.2

(Four, R2)

Three, M2

1.2

With Mounting Bracket (Example: E3T-ST11)

Mounting Brackets for Side-view Models

E39-L117

Material: 1.2 mm thick stainless steel (SUS304)

Mounting Brackets for Side-view Models

E39-L118

Material: 1.2 mm thick stainless steel (SUS304)

20.5

15

3

9

7

7.7

90°

11.5

22.7

5

2.4

2-2.2

4

9

15

4.5

(Two, R1.7)

5

3.4 (Four, R2)

(23)

1811.5

23

16.3

13.2

(Four, R2)

Three, M2

3.1

1.2

90°

(Two, R1.7)

(Two, R1.1)

(Two, R2)

(Two, R1.1)

With Mounting Bracket (Example: E3T-ST11)

Two, M2 x 14

18 Standard Photoelectric Sensors

1216

90°

8

Four, M2 tapped holes

9

7

3.2

2.4

8

2.4

15

10.5

10.6

9 73.5

Two, M2 x 8

1.2

Mounting Brackets for Flat Models

E39-L119

Mounting Brackets for Flat Models

E39-L120

1216

8

13.56

3.2

2.4

8

14

22.5

4.2

(5.4)

10.6

(6.4)

13.5

1.2

With Mounting Bracket (Example: E3T-FT11)

Material: 1.2 mm thick stainless steel (SUS304)

With Mounting Bracket (Example: E3T-FT11)

Four, M2 tapped holes

Two, M2 x 8

19E3T

READ AND UNDERSTAND THIS DOCUMENT

Please read and understand this document before using the products. Please consult your OMRON representative if you have any questions or comments.

WARRANTY

OMRON’s exclusive warranty is that the products are free from defects in materials and workmanship for a period of one year (or other period if specified) from date of sale by OMRON.

OMRON MAKES NO WARRANTY OR REPRESENTATION, EXPRESS OR IMPLIED, REGARDING NON-INFRINGEMENT, MERCHANTABILITY, OR FITNESS FOR PARTICULAR PURPOSE OF THE PRODUCTS. ANY BUYER OR USER ACKNOWLEDGES THAT THE BUYER OR USER ALONE HAS DETERMINED THAT THE PRODUCTS WILL SUITABLY MEET THE REQUIREMENTS OF THEIR INTENDED USE. OMRON DISCLAIMS ALL OTHER WARRANTIES, EXPRESS ORIMPLIED.

LIMITATIONS OF LIABILITY

OMRON SHALL NOT BE RESPONSIBLE FOR SPECIAL, INDIRECT, OR CONSEQUENTIAL DAMAGES, LOSS OF PROFITS OR COMMERCIAL LOSS IN ANY WAY CONNECTED WITH THE PRODUCTS, WHETHER SUCH CLAIM IS BASED ON CONTRACT, WARRANTY, NEGLIGENCE, OR STRICT LIABILITY.

In no event shall responsibility of OMRON for any act exceed the individual price of the product on which liability is asserted.

IN NO EVENT SHALL OMRON BE RESPONSIBLE FOR WARRANTY, REPAIR, OR OTHER CLAIMS REGARDING THE PRODUCTS UNLESS OMRON’S ANALYSIS CONFIRMS THAT THE PRODUCTS WERE PROPERLY HANDLED, STORED,INSTALLED, AND MAINTAINED AND NOT SUBJECT TO CONTAMINATION, ABUSE, MISUSE, OR INAPPROPRIATE MODIFICATION OR REPAIR.

SUITABILITY FOR USE

THE PRODUCTS CONTAINED IN THIS DOCUMENT ARE NOT SAFETY RATED. THEY ARE NOT DESIGNED OR RATED FOR ENSURING SAFETY OF PERSONS, AND SHOULD NOT BE RELIED UPON AS A SAFETY COMPONENT OR PROTECTIVE DEVICE FOR SUCH PURPOSES. Please refer to separate catalogs for OMRON's safety rated products.

OMRON shall not be responsible for conformity with any standards, codes, or regulations that apply to the combination of products in the customer’s application or use of the product.

At the customer’s request, OMRON will provide applicable third party certification documents identifying ratings and limitations of use that apply to the products. This information by itself is not sufficient for a complete determination of the suitability of the products in combination with the end product, machine, system, or other application or use.

The following are some examples of applications for which particular attention must be given. This is not intended to be an exhaustive list of all possible uses of the products, nor is it intended to imply that the uses listed may be suitable for the products:

• Outdoor use, uses involving potential chemical contamination or electrical interference, or conditions or uses not described in this document.

• Nuclear energy control systems, combustion systems, railroad systems, aviation systems, medical equipment, amusement machines,vehicles, safety equipment, and installations subject to separate industry or government regulations.

• Systems, machines, and equipment that could present a risk to life or property.

Please know and observe all prohibitions of use applicable to the products.

NEVER USE THE PRODUCTS FOR AN APPLICATION INVOLVING SERIOUS RISK TO LIFE OR PROPERTY WITHOUT ENSURING THAT THE SYSTEM AS A WHOLE HAS BEEN DESIGNED TO ADDRESS THE RISKS, AND THAT THE OMRON PRODUCT IS PROPERLY RATED AND INSTALLED FOR THE INTENDED USE WITHIN THE OVERALL EQUIPMENT OR SYSTEM.

PERFORMANCE DATA

Performance data given in this document is provided as a guide for the user in determining suitability and does not constitute a warranty. It may represent the result of OMRON’s test conditions, and the users must correlate it to actual application requirements. Actual performance is subject to the OMRON Warranty and Limitations of Liability.

CHANGE IN SPECIFICATIONS

Product specifications and accessories may be changed at any time based on improvements and other reasons.

It is our practice to change model numbers when published ratings or features are changed, or when significant construction changes are made. However, some specifications of the product may be changed without any notice. When in doubt, special model numbers may be assigned to fix or establish key specifications for your application on your request. Please consult withyour OMRON representative at any time to confirm actual specifications of purchased products.

DIMENSIONS AND WEIGHTS

Dimensions and weights are nominal and are not to be used for manufacturing purposes, even when tolerances are shown.

ERRORS AND OMISSIONS

The information in this document has been carefully checked and is believed to be accurate; however, no responsibility is assumed for clerical, typographical, or proofreading errors, or omissions.

PROGRAMMABLE PRODUCTS

OMRON shall not be responsible for the user’s programming of a programmable product, or any consequence thereof.

COPYRIGHT AND COPY PERMISSION

This document shall not be copied for sales or promotions without permission.

This document is protected by copyright and is intended solely for use in conjunction with the product. Please notify us before copying or reproducing this document in any manner, for any other purpose. If copying or transmitting this document to another,please copy or transmit it in its entirety.

20 Standard Photoelectric Sensors

In the interest of product improvement, specifications are subject to change without notice.Cat. No. E377-E1-02-X

OMRON EUROPE B.V.

Wegalaan 67-69, NL-2132 JD, Hoofddorp, The Netherlands Phone: +31 23 568 13 00 Fax: +31 23 568 13 88 www.industrial.omron.eu