Omron, E3T Series

Simple, Low-cost Installation, Setup, and Operation

New Small Cylindrical Sensors

Sure Installation without Stress

Side-view and Flat Sensor Models for M3 Mounting

Small Cylindrical Sensors

Overall Features

Many Compact Shapes for Various Applications

Ideal for Rechargeable Battery Manufacturing Lines

All Metal Parts Are Stainless Steel. No Worries About Conductive Copper Intrusion.

The case, nuts, and washers of the Cylindrical Sensors are all stainless steel, as are the mounting plates and sleeves of the M3-mounting Sensors. Harmful copper, zinc, and nickel plating are not used, enabling reliable application in rechargeable battery manufacturing lines. Stainless-steel screws are also available, for immediate application for rechargeable batteries.

last update: June 05, 2014

Sensing method		Through-beam
Appearance		Rectangular type (Side-view)
NPN output	Light-ON	E3T-ST31	E3T-ST31F	E3T-ST11 E3T-ST11M	E3T-ST11F E3T-ST11MF	E3T-ST21 E3T-ST21M	E3T-ST21F E3T-ST21MF
NPN output	Dark-ON	E3T-ST32	E3T-ST32F	E3T-ST12 E3T-ST12M	E3T-ST12F E3T-ST12MF	E3T-ST22 E3T-ST22M	E3T-ST22F E3T-ST22MF
PNP output	Light-ON	E3T-ST33	E3T-ST33F	E3T-ST13 E3T-ST13M	E3T-ST13F E3T-ST13MF	E3T-ST23 E3T-ST23M	E3T-ST23F E3T-ST23MF
PNP output	Dark-ON	E3T-ST34	E3T-ST34F	E3T-ST14 E3T-ST14M	E3T-ST14F E3T-ST14MF	E3T-ST24 E3T-ST24M	E3T-ST24F E3T-ST24MF
Sensing distance		2 m		1 m		300 mm
Standard sensing object		Opaque, 3-mm dia. min.		Opaque, 2-mm dia. min.
Minimum detectable object (reference value)		Opaque, 3-mm dia.		Opaque, 2-mm dia.
Hysteresis (white paper)		---
Black/white error		---
Directional angle		Emitter: 2° to 20° Receiver: 2° to 70°
Light source (wavelength)		Red LED (650 nm)	Infrared LED (860 nm)	Red LED (650 nm)	Infrared LED (860 nm)	Red LED (650 nm)	Infrared LED (860 nm)
Power supply voltage		12 to 24 VDC ±10%, ripple (p-p) 10% max.
Current consumption		30 mA max. (Emitter 10 mA max., Receiver 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
Protection circuits		Power supply and control output reverse polarity protection, Output short-circuit protection
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		AC1,000V, 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 hours 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		IEC 60529 IP67
Connection method		Pre-wired (standard length: 2 m)
Weight (packed state)		Approx. 40 g
Materials	Case	PBT (polybutylene terephthalate)
	Display window	Denatured polyarylate
	Lens	Denatured polyarylate
	Hexagonal nuts	---
	Toothed washers	---
Accessories *		Instruction manual, Set screws for mounting (Side-view Sensors: M2 × 14, Flat Sensors: M2 × 8), Nuts

* Only the Instruction Manual is included with an M3-mounting Sensor (E3T-ST[][]M(F)). Order the Set of Mounting Screws
separately if required.

Sensing method		Through-beam
Appearance		Rectangular type
NPN output	Light-ON	E3T-FT11	E3T-FT11F	E3T-FT21	E3T-FT21F
NPN output	Dark-ON	E3T-FT12	E3T-FT12F	E3T-FT22	E3T-FT22F
PNP output	Light-ON	E3T-FT13	E3T-FT13F	E3T-FT23	E3T-FT23F
PNP output	Dark-ON	E3T-FT14	E3T-FT14F	E3T-FT24	E3T-FT24F
Sensing distance		500 mm		300 mm
Standard sensing object		Opaque, 1.3-mm dia. min.
Minimum detectable object (reference value)		Opaque, 1.3-mm dia.
Hysteresis (white paper)		---
Black/white error		---
Directional angle		Emitter: 3° to 25° Receiver: 3° min.
Light source (wavelength)		Red LED (650 nm)	Infrared LED (860 nm)	Red LED (650 nm)	Infrared LED (860 nm)
Power supply voltage		12 to 24 VDC ±10%, ripple (p-p) 10% max.
Current consumption		30 mA max. (Emitter 10 mA max., Receiver 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
Protection circuits		Power supply and control output reverse polarity protection, Output short-circuit protection
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		AC1,000V, 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 hours 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		IEC 60529 IP67
Connection method		Pre-wired (standard length: 2 m)
Weight (packed state)		Approx. 40 g
Materials	Case	PBT (polybutylene terephthalate)
	Display window	Denatured polyarylate
	Lens	Denatured polyarylate
	Hexagonal nuts	---
	Toothed washers	---
Accessories *		Instruction manual, Set screws for mounting (Side-view Sensors: M2 × 14, Flat Sensors: M2 × 8), Nuts

* Only the Instruction Manual is included with an M3-mounting Sensor (E3T-ST[][]M(F)). Order the Set of Mounting Screws
separately if required.

Sensing method		Through-beam		Retro-reflective (without M.S.R. function)
Appearance		Cylindrical (Top-view)	Cylindrical (Side-view)	Rectangular (Side-view)
NPN output	Light-ON	---	---	E3T-SR41
NPN output	Dark-ON	E3T-CT12	E3T-CT22S	E3T-SR42
PNP output	Light-ON	---	---	E3T-SR43
PNP output	Dark-ON	E3T-CT14	E3T-CT24S	E3T-SR44
Sensing distance		1 m	500 mm	200 mm [30 mm] * (Using the E39-R4) 100 mm [10 mm] * (Using the E39-R37-CA)
Standard sensing object		Opaque, 4-mm dia. min.	Opaque, 5-mm dia. min.	Opaque, 27-mm dia. min.
Minimum detectable object (reference value)		---		2-mm dia. (Sensing distance 100 mm)
Hysteresis (white paper)		---
Black/white error		---
Directional angle		Receiver: 2°	Receiver: 10°	2 to 20°
Light source (wavelength)		Red LED (630 nm)	Red LED (625 nm)	Red LED (650 nm)
Power supply voltage		12 to 24 VDC ±10%, ripple (p-p) 10% max.
Current consumption		30 mA max. (Emitter 15 mA max., Receiver 15 mA max.)		20 mA max.
Control output		Load power supply voltage: 30 VDC max. Load current: 80 mA max. (residual voltage: 1 V max.) Open-collector 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
Protection circuits		Power supply reverse polarity protection, Output short-circuit protection		Power supply and control output reverse polarity protection, Output short-circuit protection, Mutual interference prevention
Response time		Operate or reset: 0.5 ms max.		Operate or reset: 1 ms max.
Ambient illumination		Incandescent lamp: 3,000 lx max.		Incandescent lamp: 5,000 lx max., Sunlight: 10,000 lx max.
Ambient temperature range		Operating: -25 to 55°C Storage: -30 to 70°C (with no icing or condensation)		Operating: -25 to 55°C Storage: -40 to 70°C (with no icing or condensation)
Ambient humidity range		Operating or Storage: 35% to 85% (with no condensation)		Operating: 35% to 85% Storage: 35% to 95% (with no condensation)
Insulation resistance		20 MΩ min. at 500 VDC
Dielectric strength		AC500V, 50/60 Hz for 1 min.		AC1,000V, 50/60 Hz for 1 min.
Vibration resistance (destruction)		10 to 55Hz, 1.5-mm double amplitude for 2 hours each in X, Y, and Z directions		10 to 2,000 Hz, 1.5-mm double amplitude or 300 m/s² for 0.5 hours each in X, Y, and Z directions
Shock resistance (destruction)		500 m/s² 3 times each in X, Y, and Z directions		1,000m/s² 3 times each in X, Y, and Z directions
Degree of protection		IEC 60529 IP65		IEC 60529 IP67
Connection method		Pre-wired (standard length: 2 m)
Weight (packed state)		Approx. 60 g		Approx. 20 g
Materials	Case	SUS303		PBT (polybutylene terephthalate)
	Display window	Polysulfone		Denatured polyarylate
	Lens	Polysulfone		Methacrylc resin
	Hexagonal nuts	SUS303		---
	Toothed washers	SUS303		---
Accessories		Instruction manual, Hexagonal nuts, Toothed washers		Instruction manual, Set screws for mounting (M2×14), Nuts, E39-R4 (E3T-SR4[] only), E39-R37-CA (E3T-SR4[]-S only)

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

Sensing method		Diffuse-reflective
Appearance		Rectangular type (Flat)	Cylindrical type (Top-view)
NPN output	Light-ON	E3T-FD11 E3T-FD11M	E3T-CD11
NPN output	Dark-ON	E3T-FD12 E3T-FD12M	---
PNP output	Light-ON	E3T-FD13 E3T-FD13M	E3T-CD13
PNP output	Dark-ON	E3T-FD14 E3T-FD14M	---
Sensing distance		5 to 30 mm (50 × 50 mm white paper)	3 to 50 mm (100 × 100 mm white paper)
Standard sensing object		---
Minimum detectable object (reference value)		0.15-mm dia. (sensing distance 10 mm)	---
Hysteresis (white paper)		6 mm max.	15% or less of the sensing distance
Black/white error		---
Directional angle		---
Light source (wavelength)		Red LED (650 nm)	Infrared LED (870 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	Load power supply voltage: 30 VDC max. Load current: 80 mA max. (residual voltage: 1 V max.) Open-collector output
Protection circuits		Power supply and control output reverse polarity protection, Output short-circuit protection, Mutual interference prevention	Power supply reverse polarity protection, Output short-circuit protection
Response time		Operate or reset: 1 ms max.	Operate or reset: 0.5 ms max.
Ambient illumination		Incandescent lamp: 5,000 lx max., Sunlight: 10,000 lx max.	Incandescent lamp: 3,000 lx max.
Ambient temperature range		Operating: -25 to 55°C Storage: -40 to 70°C (with no icing or condensation)	Operating: -25 to 55°C Storage: -30 to 70°C (with no icing or condensation)
Ambient humidity range		Operating: 35% to 85% Storage: 35% to 95% (with no condensation)	Operating or Storage: 35% to 85% (with no condensation)
Insulation resistance		20 MΩ min. at 500 VDC
Dielectric strength		1,000 VAC, 50/60 Hz for 1 min.	500 VAC, 50/60 Hz for min.
Vibration resistance (destruction)		10 to 2,000 Hz, 1.5-mm double amplitude or 300 m/s² for 0.5 hours each in X, Y, and Z directions	10 to 55Hz, 1.5-mm double amplitude for 2 hours each in X, Y, and Z directions
Shock resistance (destruction)		1,000 m/s² 3 times each in X, Y, and Z directions	500 m/s² 3 times each in X, Y, and Z directions
Degree of protection		IEC 60529 IP67	IEC 60529 IP65
Connection method		Pre-wired (standard length: 2 m)
Weight (packed state)		Approx. 20 g	Approx. 40 g
Materials	Case	PBT (polybutylene terephthalate)	SUS303
	Display window	Denatured polyarylate	Epoxy
	Lens	Denatured polyarylate	Polysulfone
	Hexagonal nuts	---	SUS303
	Toothed washers	---	SUS303
Accessories		Instruction manual, Set screws for mounting (M2 × 8), Nuts *	Instruction manual, Hexagonal nuts, Toothed washers, Adjustment driver

* Only the Instruction Manual is included with an M3-mounting Sensor (E3T-FD[][]M or E3T-SL[][]M). Order the Set of
Mounting Screws separately if required.

Sensing method		Limited-reflective		BGS-reflective
Appearance		Rectangular type (Side-view)		Rectangular type (Flat)
NPN output	Light-ON	E3T-SL11 E3T-SL11M	E3T-SL21 E3T-SL21M	E3T-FL11	E3T-FL21
NPN output	Dark-ON	E3T-SL12 E3T-SL12M	E3T-SL22 E3T-SL22M	E3T-FL12	E3T-FL22
PNP output	Light-ON	E3T-SL13 E3T-SL13M	E3T-SL23 E3T-SL23M	E3T-FL13	E3T-FL23
PNP output	Dark-ON	E3T-SL14 E3T-SL14M	E3T-SL24 E3T-SL24M	E3T-FL14	E3T-FL24
Sensing distance		5 to 15 mm (50 × 50 mm white paper)	5 to 30 mm (50 × 50 mm white paper)	1 to 15 mm (50 × 50 mm white paper)	1 to 30 mm (50 × 50 mm white paper)
Standard sensing object		---
Minimum detectable object (reference value)		0.15-mm dia. (sensing distance 10 mm)		0.15-mm dia. non-glossy object (sensing distance 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 (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
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 hours each in X, Y, and Z directions
Shock resistance (destruction)		1,000m/s² 3 times each in X, Y, and Z directions
Degree of protection		IEC 60529 IP67
Connection method		Pre-wired (standard length: 2 m)
Weight (packed state)		Approx. 20 g
Materials	Case	PBT (polybutylene terephthalate)
	Display window	Denatured polyarylate
	Lens	Denatured polyarylate
	Hexagonal nuts	---
	Toothed washers	---
Accessories		Instruction manual, Set screws for mounting (M2 × 14), Nuts *		Instruction manual, Set screws for mounting (M2 × 8), Nuts

* Only the Instruction Manual is included with an M3-mounting Sensor (E3T-FD[][]M or E3T-SL[][]M). Order the Set of
Mounting Screws separately if required.

last update: June 05, 2014

Tolerance class IT16 applies to dimensions in this datasheet unless otherwise specified.

Sensors

M2-mounting Sensors

Through-beam Side-view Sensors

E3T-ST1[](F) (Emitter)
E3T-ST2[](F) (Emitter)
E3T-ST3[](F) (Emitter)

E3T-ST1[](F) (Receiver)
E3T-ST2[](F) (Receiver)
E3T-ST3[](F) (Receiver)

Through-beam Flat Sensors

E3T-FT1[](F) (Emitter)
E3T-FT2[](F) (Emitter)

E3T-FT1[](F) (Receiver)
E3T-FT2[](F) (Receiver)

Retro-reflective Side-view Sensors

E3T-SR4[]

Diffuse-reflective Flat Sensors

E3T-FD1[]

Limited-reflective Side-view Sensors

E3T-SL1[]
E3T-SL2[]

BGS-reflective Flat Sensors

E3T-FL1[]
E3T-FL2[]

M3-mounting Sensors

Through-beam Side-view Sensors

E3T-ST1[]M(F) (Emitter)
E3T-ST2[]M(F) (Emitter)

E3T-ST1[]M(F) (Receiver)
E3T-ST2[]M(F) (Receiver)

Diffuse-reflective Flat Sensors

E3T-FD1[]M

Limited-reflective Side-view Sensors

E3T-SL1[]M
E3T-SL2[]M

Small Cylindrical Sensors

Through-beam Top-view Sensors

E3T-CT1[] (Emitter)

E3T-CT1[] (Receiver)

Through-beam Side-view Sensors

E3T-CT2[]S (Emitter)

E3T-CT2[]S (Receiver)

Diffuse-reflective Top-view Sensors

E3T-CD1[]

Accessories

Reflector (Provided with E3T-SR4[])

E39-R4

Reflector (Provided with E3T-SR4[]-S)

E39-R37-CA

Accessories (Order Separately)

Tape Reflectors

E39-RS1-CA

E39-RS2-CA

E39-RS3-CA

Slit for E3T-ST[][](F) Through-beam Sensors

E39-S63

Slit for E3T-FT[][](F) Through-beam Sensors

E39-S64

0.5-dia Slit for E3T-ST[][]M(F) Through-beam Sensors

E39-S76A

1-dia Slit for E3T-ST[][]M(F) Through-beam Sensors

E39-S76B

Sensitivity Adjustment Unit for E3T-ST1[]/ST3[] Through-beam Sensors

E39-E10

Mounting Bracket for M2-mounting Side-view Sensors

E39-L116

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Mounting Bracket for M2-mounting Side-view Sensors

E39-L117

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Mounting Bracket for M2-mounting Side-view Sensors

E39-L118

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Mounting Bracket for M2-mounting Flat Sensors

E39-L119

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Mounting Bracket for M2-mounting Flat Sensors

E39-L120

Mounting Bracket for M3-mounting Side-view Sensors

E39-L166

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Mounting Bracket for M3-mounting Flat Sensors

E39-L167

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Back-mounting Spacer for M3-mounting Flat Sensors

E39-L168

TITLE	DOCUMENT TYPE	SIZE
E3T Data Sheet	Catalog	2530 KB
E3T Catalog	Catalog	2530 KB
E3T-C[][][] Photoelectric Sensor Instruction Sheet (ENG/JPN)	Manual	11010 KB
E3T-[] Photoelectric Sensor Instruction Sheet (ENG/JPN/KOR)	Manual	719 KB