Omron E3T DATASHEET

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.

Minimal black/white error Unique light receiving lens shape

for high precision alignment

(mm)

White paper Black paper

E3T-FL1@

Light receiving lens

New mounting technology for reliable background

suppression in 3.5 mm flat housing

Flip chip (IC)

Rear Front Side

Light receiving element

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).

1E3T

Application

E3T-SL limited-reflective models (side view)

• Minimum detection object: 0.15 mm dia.

• Limited-reflective optics reduce the influence of changing

E3T-FD Diffuse-reflective Models (Flat)

• Minimum detection object: 0.15 mm dia.

• 3.5 mm thickness for installations with limited space. backgrounds and surrounding metal for enhanced detection stability.

Ordering Information

Sensors

Sensing

method

Through-

beam

Appearance

Side-view

Flat

Connection method

Sensing

distance

(Sensitivity Adjustment Unit can be used.)

300 mm

500mm

300 mm

Opera-

tion

mode

1 m

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

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

Red light

Order code

NPN output PNP output

Retro-

reflective

Diffuse-

reflective

Side-view

Flat

200 mm [30 mm]

100 mm [10 mm]

5 to 30 mm

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

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

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

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

Side-view

5 to 15 mm

Limited-

reflective

5 to 30 mm

Diffuse

Flat

1 to 15 mm

reflective

(background

suppression)

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

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

1 to 30 mm

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

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

2 Standard Photoelectric Sensors

Accessories (Order Separately)

Slits

Slit width

0.5 mm dia. 100 mm 0.5 mm dia.

1 mm dia. 300 mm 1 mm dia.

0.5 mm dia. 50 mm 0.5 mm dia.

1 mm dia. 100 mm 1 mm dia.

Sensing distance

(typical)

Reflectors

Shape Type Sensing distance

Small reflector

Tape reflector

Minimum detect-

able object (typical)

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

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

100 mm (10 mm) E39-RS1-CA

100 mm (10 mm) E39-RS2-CA

100 mm (10 mm) E39-RS3-CA

Order code Quantity Remarks

E39-S63

E39-S64

Minimum detectable

object (typical)

Plug-in type round slits

2 (one each for emitter and receiver)

Order code Remarks

Can be used with E3T-ST1@ Through-beam models.

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

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

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

Sensitivity Adjustment Unit

Appearance Sensing distance (typical) Model Quantity Remarks

300 to 800 mm E39-E10 1

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

Mounting Brackets

Appearance Model Quantity Remarks

E39-L116

Can be used with the E3T-S@@@

E39-L117

E39-L118

E39-L119

E39-L120

(A securing nut plate is provided with the

Side-view Models.

Mounting Bracket.)

Can be used with the E3T-F@@@

Flat Models.

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

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Rating and Specifications

Through-beam Retro-reflective Diffuse-reflective

Side-view Flat Side-view Flat

Item

Sensing distance E3T-ST1@

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

Minimum detectable object (typical)

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

Black/white error ---

Directional angle Emitter: 2° to 20°

Light source (wavelength)

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

Current consumption Emitter: 10 mA max.

Control output Load power supply voltage: 26.4 VDC max.

Protection circuits Power supply and control output reverse polarity

Response time Operate or reset: 1 ms max.

Ambient illumination Incandescent lamp: 5,000 lx max.

Ambient temperature range

Ambient humidity range Operating: 35% to 85%

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

Lens Denatured polyarylate Methacrylic resin Denatured polyarylate

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

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

NPN PNP NPN PNP NPN PNP NPN PNP

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

E3T-ST2@

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

Receiver: 2° to 70°

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

1 m 300 mm

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

E3T-FT1@ E3T-FT2@

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

500 mm 300 mm

Emitter: 3° to 25° Receiver: 3° min.

E3T-SR41 E3T-SR42

200 mm (30 mm) with E39-R4 100 mm (10 mm) with E39-R37-CA

E3T-SR43 E3T-SR44

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

0.15 mm dia. (sensing

tance of 100 mm)

distance of 10 mm)

2° to 20° ---

E3T-FD11 E3T-FD12

E3T-FD13 E3T-FD14

Red LED (“Pin-point” LED) λ = 650 nm

20 mA max.

Receiver: 20 mA 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

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

protection Output short-circuit protection

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

Sunlight: 10,000 lx max.

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

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

Denatured polyarylate

Spring washers, Flat washers

4 Standard Photoelectric Sensors

Limited-reflective Diffuse-reflective (background suppression)

Side-view Flat

Item

Sensing distance 5 to 15 mm

Standard sensing object ---

Minimum detectable object (typical)

Hysteresis (white paper)

Black/white error --- 15% max.

Directional angle ---

Light source (wavelength)

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.

Protection circuits Power supply and control output reverse polarity protection

Response time Operate or reset: 1 ms max.

Ambient illumination Incandescent lamp: 5,000 lx max.

Ambient temperature range

Ambient humidity range Operating: 35% to 85%

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

Lens Denatured polyarylate

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

NPN PNP NPN PNP NPN PNP NPN PNP

E3T-SL11 E3T-SL12

(50 x 50 mm white paper)

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

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

Red LED (“Pin-point” LED) λ = 650 nm

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

Output short-circuit protection, Mutual interference prevention

Sunlight: 10,000 lx max.

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

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

Denatured polyarylate

Spring washers, Flat washers

E3T-SL13 E3T-SL14

E3T-SL21 E3T-SL22

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

E3T-SL23 E3T-SL24

E3T-FL11 E3T-FL12

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

(sensing distance of 10 mm)

E3T-FL13 E3T-FL14

E3T-FL21 E3T-FL22

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

E3T-FL23 E3T-FL24

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Engineering Data (Typical)

Parallel Operating Range

Through-beam

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

(Enlarged graph)

E3T-ST2@

200

150

100

Distance Y (mm)

0.5-dia Slit

100

150

200

Without Slit

1-dia Slit

0.4 0.8 1.2 1.6 1.2

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

200

150

100

Distance Y (mm)

100

150

200

0.5-dia Slit

0.4 0.6 0.8 1 1.2 1.40.2 Without Slit

Distance X (m)

1-dia Slit

Distance Y (mm)

40 80 120 160 200

1-dia Slit

0.5-dia Slit

Distance X (mm)

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

Distance Y (mm)

0.5-dia Slit

40 80 120 160 200

(Enlarged graph)

1-dia Slit

Distance X (mm)

Without Slit

Distance Y (mm)

E3T-FT2@

Without Slit

Distance Y (mm)

1-dia Slit

0.5-dia Slit

200 400 800600

1-dia Slit

0.5-dia Slit

200 400 600

Distance X (mm)

800

Distance X (mm)

Retro-reflective

E3T-SR4@

Distance Y (mm)

E3T- SR4@+E39-R4

−10

E3T- SR4@+E39-R37-CA

−20

−30

−40

100 4000 300200

Distance X (mm)

6 Standard Photoelectric Sensors

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