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)

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

(Enlarged graph)

E3T-ST2@

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

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

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

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