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Ultracompact, Ultrathin Photoelectric Sensor with Built-in Amplifier
The Improved E3T Series with Easier, Smoother Mounting and Installation
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last update: April 1, 2024
| 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 |
| 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 |
| 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 |
||||||
| Indicators | Operation indicator (orange), Stability indicator (green) | ||||||
| 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 *1 | 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 *2 | Instruction manual, Set screws for mounting (Side-view Sensors: M2 × 14,
Flat Sensors: M2 × 8), Nuts |
||||||
| Conformity standards | CE Marking, ISO13849-1 (PLc, cat1) *1 | ||||||
*1. Degree of protection conforming to ISO13849-1 (PLc, cat1) is IP54 for E3T-ST series and IP67 for E3T-FT series. Conforms to December 2023.
Refer to the Instruction Sheet and Information for ISO13849-1 Compliance.
If a slit (E39-S63/S64) is attached to the sensor,it is not applicable to ISO13849-1 (PLc, cat1).
*2. 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 (Flat)
 |
||||
| NPN
output |
Light-ON | E3T-FT11 | E3T-FT11F | E3T-FT21 | E3T-FT21F |
| Dark-ON | E3T-FT12 | E3T-FT12F | E3T-FT22 | E3T-FT22F | |
| PNP
output |
Light-ON | E3T-FT13 | E3T-FT13F | E3T-FT23 | E3T-FT23F |
| 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 |
||||
| Indicators | Operation indicator (orange), Stability indicator (green) | ||||
| 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 *1 | 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 *2 | Instruction manual, Set screws for mounting (Side-view Sensors: M2 × 14,
Flat Sensors: M2 × 8), Nuts |
||||
| Conformity standards | CE Marking, ISO13849-1 (PLc, cat1) *1 | ||||
*1. Degree of protection conforming to ISO13849-1 (PLc, cat1) is IP54 for E3T-ST series and IP67 for E3T-FT series. Conforms to December 2023.
Refer to the Instruction Sheet and Information for ISO13849-1 Compliance.
If a slit (E39-S63/S64) is attached to the sensor,it is not applicable to ISO13849-1 (PLc, cat1).
*2. 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 type
(Top-view)  |
Cylindrical type
(Side-view)  |
Rectangular type
(Side-view)  |
|
| NPN
output |
Light-ON | --- | --- | E3T-SR41 |
| Dark-ON | E3T-CT12 | E3T-CT22S | E3T-SR42 | |
| PNP
output |
Light-ON | --- | --- | E3T-SR43 |
| 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 |
||
| Indicators | Operation indicator (orange), Stability indicator (green) | |||
| 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 |
| Dark-ON | E3T-FD12
E3T-FD12M |
--- | |
| PNP
output |
Light-ON | E3T-FD13
E3T-FD13M |
E3T-CD13 |
| 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 |
|
| Indicators | Operation indicator (orange), Stability indicator (green) | ||
| 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.
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 |
| 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 |
| 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 |
||||
| Indicators | Operation indicator (orange), Stability indicator (green) | ||||
| 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.
Mounting Screws separately if required.
last update: April 1, 2024
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