1
Ultracompact, Ultrathin Photoelectric Sensor with Built-in Amplifier
E3T
The Improved E3T Series with Easier,
Smoother Mounting and Installation
• The series includes Through-beam, Long-distance (2 m) Sensors
(E3T-ST3@).
• Easy installation with M3-mounting Sensors
(E3T-ST@@M, E3T-FD@@M, and E3T-SL@@M).
•
Small Cylindrical Sensors for one-point mounting are also available
(E3T-C
@@@
(S)).
• Infrared Sensors added to the Series
(E3T-
@
T
@@
(M)F).
Lineup Overview
Sensing
method Through-beam Retro-
reflective
Diffuse-
reflective
Limited-
reflective
BGS-
reflective
Appearance
Rectangular
type
Side-view
M2-mounting ●●--- ●---
M3-mounting ●--- --- ●---
Flat M2-mounting ●--- ●--- ●
M3-mounting --- --- ●--- ---
Cylindrical
type
Top-view
--- ●--- ●--- ---
Side-view
--- ●--- --- --- ---
For the most recent information on models that have been certified for
safety standards, refer to your OMRON website.
Be sure to read Safety Precautions on page 15.
2
E3T
Ordering Information
Sensors [Refer to Dimensions on page 16.] Red light Infrared light
M2-mounting Sensors A set of mounting screws is included with the Sensor.
M3-mounting Sensors A set of mounting screws is not included with the Sensor. Order a Screw Set separately if required.
*1. The model number of the Emitter is expressed by adding an “L” to the set model number in the table. Example: E3T-ST11-L 2M
The model number of the Receiver is expressed by adding a “D” to the set model number in the table. Example: E3T-ST11-D 2M
*2. Values in parentheses indicate the minimum required distance between the Sensor and Reflector.
*3. Models are available either with or without the E39-R37-CA Reflector included.
Models with E39-R37-CA Reflector: E3T-SR4@-S
Models without Reflector: E3T-SR4@-C
*4. Models with robot (bending-resistant) cable are also available with “R” in the model number. (Example: E3T-ST11R 2M)
Sensing method Appearance Sensing distance Operation mode Model
NPN output PNP output
Through-beam
Emitter
+
Receiver
Light-ON E3T-ST31 2M*4 E3T-ST33 2M*4
Dark-ON E3T-ST32 2M*4 E3T-ST34 2M*4
Light-ON E3T-ST11 2M*4 E3T-ST13 2M*4
Dark-ON E3T-ST12 2M*4 E3T-ST14 2M*4
Light-ON E3T-ST21 2M E3T-ST23 2M
Dark-ON E3T-ST22 2M E3T-ST24 2M
Light-ON E3T-ST31F 2M E3T-ST33F 2M
Dark-ON E3T-ST32F 2M E3T-ST34F 2M
Light-ON E3T-ST11F 2M E3T-ST13F 2M
Dark-ON E3T-ST12F 2M E3T-ST14F 2M
Light-ON E3T-ST21F 2M E3T-ST23F 2M
Dark-ON E3T-ST22F 2M E3T-ST24F 2M
Light-ON E3T-FT11 2M*4 E3T-FT13 2M*4
Dark-ON E3T-FT12 2M*4 E3T-FT14 2M*4
Light-ON E3T-FT21 2M E3T-FT23 2M
Dark-ON E3T-FT22 2M E3T-FT24 2M
Light-ON E3T-FT11F 2M E3T-FT13F 2M
Dark-ON E3T-FT12F 2M E3T-FT14F 2M
Light-ON E3T-FT21F 2M E3T-FT23F 2M
Dark-ON E3T-FT22F 2M E3T-FT24F 2M
Retro-
reflective
Light-ON E3T-SR41 2M*3 *4 E3T-SR43 2M*3 *4
Dark-ON E3T-SR42 2M*3 *4 E3T-SR44 2M*3 *4
Diffuse-
reflective
Light-ON E3T-FD11 2M*4 E3T-FD13 2M*4
Dark-ON E3T-FD12 2M*4 E3T-FD14 2M*4
Limited-
reflective
Light-ON E3T-SL11 2M*4 E3T-SL13 2M*4
Dark-ON E3T-SL12 2M*4 E3T-SL14 2M*4
Light-ON E3T-SL21 2M*4 E3T-SL23 2M*4
Dark-ON E3T-SL22 2M*4 E3T-SL24 2M*4
BGS-
reflective
Light-ON E3T-FL11 2M*4 E3T-FL13 2M*4
Dark-ON E3T-FL12 2M*4 E3T-FL14 2M*4
Light-ON E3T-FL21 2M*4 E3T-FL23 2M*4
Dark-ON E3T-FL22 2M*4 E3T-FL24 2M*4
(
)
*1
2 m
(Sensitivity Adjustment
Unit can be used.)
1 m
(Sensitivity Adjustment
Unit can be used.)
300 mm
2 m
1 m
300 mm
500 mm
300 mm
500 mm
300 mm
Using the E39-R4 Reflector
provided 200 mm [30 mm] *2
Using the E39-R37-CA
100 mm [10 mm] *2
5 to 30 mm
5 to 15 mm
5 to 30 mm
1 to 15 mm
1 to 30 mm
Sensing method Appearance Sensing distance Operation mode Model
NPN output PNP output
Through-beam
Emitter
+
Receiver
Light-ON E3T-ST11M 2M E3T-ST13M 2M
Dark-ON E3T-ST12M 2M E3T-ST14M 2M
Light-ON E3T-ST21M 2M E3T-ST23M 2M
Dark-ON E3T-ST22M 2M E3T-ST24M 2M
Light-ON E3T-ST11MF 2M E3T-ST13MF 2M
Dark-ON E3T-ST12MF 2M E3T-ST14MF 2M
Light-ON E3T-ST21MF 2M E3T-ST23MF 2M
Dark-ON E3T-ST22MF 2M E3T-ST24MF 2M
Diffuse-
reflective
Light-ON E3T-FD11M 2M E3T-FD13M 2M
Dark-ON E3T-FD12M 2M E3T-FD14M 2M
Limited-
reflective
Light-ON E3T-SL11M 2M E3T-SL13M 2M
Dark-ON E3T-SL12M 2M E3T-SL14M 2M
Light-ON E3T-SL21M 2M E3T-SL23M 2M
Dark-ON E3T-SL22M 2M E3T-SL24M 2M
(
)
*1
1 m
300 mm
1 m
300 mm
5 to 30 mm
5 to 15 mm
5 to 30 mm
3
E3T
Small Cylindrical Sensors A set of mounting nuts is included with the Sensor.
Accessories (Order Separately)
Accessories for M2-mounting Sensors These accessories are not included with the Sensor. Order them separately if required.
*1. When using Through-beam Sensors (E3T-ST@@, E3T-FT@@), order one Bracket for the Emitter and one for the Receiver.
*2. Order two Sets, one for the Emitter and one for the Receiver, for Through-beam Sensors (E3T-ST@@ or E3T-FT@@).
This is the Screw Set for mounting the Sensor to the Mounting Bracket. Order this Set if you lose the screws. Do not use this Screw Set to mount the Mounting
Bracket to the equipment.
*3. This is included with the Sensor.
Sensing method Appearance Sensing distance Operation mode Model
NPN output PNP output
Through-beam
Emitter
+
Receiver
Light-ON --- ---
Dark-ON E3T-CT12 2M E3T-CT14 2M
Light-ON --- ---
Dark-ON E3T-CT22S 2M E3T-CT24S 2M
Diffuse-
reflective
(with adjuster)
Light-ON E3T-CD11 2M E3T-CD13 2M
Dark-ON --- ---
Name Applicable
Sensor Model Quantity Dimensions
page Remarks
Slit for Through-beam
Side-view Sensors
0.5 dia.
E3T-ST3@@
E39-S63
2
(One each for Emitter
and Receiver; common
with Slit widths of 1 dia.
and 0.5 dia.) 21
Sensing distance 200 mm,
Minimum detectable object (reference value) 0.5-mm dia.
E3T-ST1@@ Sensing distance 100 mm,
Minimum detectable object (reference value) 0.5-mm dia.
E3T-ST2@@ Sensing distance 30 mm,
Minimum detectable object (reference value) 0.5-mm dia.
1 dia.
E3T-ST3@@ Sensing distance 600 mm,
Minimum detectable object (reference value) 1-mm dia.
E3T-ST1@@ Sensing distance 300 mm,
Minimum detectable object (reference value) 1-mm dia.
E3T-ST2@@ Sensing distance 100 mm,
Minimum detectable object (reference value) 1-mm dia.
Slit for Through-beam
Flat Sensors
0.5 dia.
E3T-FT1@@
E39-S64
Sensing distance 50 mm,
Minimum detectable object (reference value) 0.5-mm dia.
E3T-FT2@@ Sensing distance 30 mm,
Minimum detectable object (reference value) 0.5-mm dia.
1 dia.
E3T-FT1@@ Sensing distance 100 mm,
Minimum detectable object (reference value) 1-mm dia.
E3T-FT2@@ Sensing distance 50 mm,
Minimum detectable object (reference value) 1-mm dia.
Sensitivity Adjustment Unit for
Through-beam Side-view Sensors with
Red Light
E3T-ST3@
E39-E10 1
Sensing distance (reference value) 1,200 to 1,800
mm
E3T-ST1@Sensing distance (reference value) 300 to 800 mm
Mounting Brackets for Side-view Sen-
sors *1 E3T-S@@@@
E39-L116
1
22 Nut plate providedE39-L117
E39-L118
23
Mounting Brackets for Flat Sensors *1 E3T-F@@@@ E39-L119 ---
E39-L120
Screw Set for Side-view Sensors *2*3 E3T-S@@@@ E39-L164
2 for each
---
Material: Iron (Same type as provided with the
Sensor.)
Contents: Set screws (M2×14), Hexagonal nuts
Screw Set for Flat Sensors *2*3 E3T-F@@@@ E39-L165
Material: Iron (Same type as provided with the
Sensor.)
Contents: Set screws (M2×8), Hexagonal nuts
SUS Screw Set for Flat Sensors *2 E3T-F@@@@ E39-L172 2Material: SUS304
Contents: Bolt with hexagonal hole (M2×6)
SUS Screw Set for Side-view Sensors
*2 E3T-S@@@@ E39-L173 2 for each
Material: SUS304
Contents: Bolt with hexagonal hole (M2×12), Hex-
agonal nuts, Spring washers, Flat washers
(
)
1 m
500 mm
3 to 50 mm
E3T
4
Accessories for M3-mounting Sensors These accessories are not included with the Sensor. Order them separately if required.
*1.When using Through-beam Sensors (E3T-ST@@M@), order one Bracket for the Emitter and one for the Receiver.
*2. This is the Screw Set for mounting the Sensor to the Mounting Bracket. Order this Set if you lose the screws. Do not use this Screw Set to mount the Mounting
Bracket to the equipment.
*3. Order two Sets, one for the Emitter and one for the Receiver, for Through-beam Sensors (E3T-ST@@M@).
Accessories for Small Cylindrical Sensors
*1.This Nut Set is for the Emitter/Receiver. This is the Nut Set for mounting the Sensor. Order this Set if you lose the screws.
Accessories for All Sensors
*1.Values in parentheses indicate the minimum required distance between the Sensor and Reflector.
*2. The E3T-SR4@ cannot be used with the E39-R37 or E39-RS1/2/3 (without CA) Tape Reflectors.
The E39-@-CA Reflector is for use only with the E3T-SR4@. It cannot be used with other Sensors.
Name Applicable
Sensor Model Quantity Dimensions
page Remarks
Slits for Through-beam
Side-view Sensors
0.5
dia.
E3T-ST1@M@
E39-S76A
2
(One each for
Emitter and
Receiver)
21
Sensing distance 100 mm,
Minimum detectable object (reference value)
0.5-mm dia.
E3T-ST2@M@
Sensing distance 30 mm,
Minimum detectable object (reference value)
0.5-mm dia.
1 dia.
E3T-ST1@M@
E39-S76B
Sensing distance 300 mm,
Minimum detectable object (reference value)
1-mm dia.
E3T-ST2@M@
Sensing distance 100 mm,
Minimum detectable object (reference value)
1-mm dia.
Mounting Bracket for Side-view
Sensors *1 E3T-S@@@M@E39-L166
124
Nut plate provided
Mounting Bracket for Flat Sensors
E3T-FD@@M
E39-L167 ---
Back-mounting Spacer for Flat Sen-
sors E39-L168 Use this Spacer when mounting a Flat Sensor
(E3T-FD@@M) from the back.
SUS Screw Set for Flat Sensors *2 E3T-FD@@M E39-L170 2
---
Material: SUS304
Contents: Bolt with hexagonal hole (M3×6)
SUS Screw Set for Side-view Sen-
sors *2*3 E3T-S@@@M@E39-L171 2 for each
Material: SUS304
Contents: Bolt with hexagonal hole (M3×15), Hex-
agonal nuts, Spring washers, Flat washers
Name Applicable
Sensor Model Quantity Dimensions
Page Remarks
SUS Nut Set for Through-beam
Sensors *1 E3T-CT@@
E3T-CT@@SE39-M5
4 (Hexagonal
nuts),
2 (Toothed
washers)
---
Material: SUS303
(Same type as provided with the Sensor.)
SUS Nut Set for Diffuse-reflective
Sensors E3T-CD@@
E39-M6
2 (Hexagonal
nuts),
1(Toothed
washers)
Adjustment Driver for Diffuse-reflec-
tive Sensors E39-G17 1This Driver is used to turn the sensitivity adjuster.
Provided with E3T-CD@@
Name Applicable
Sensor Model Quantity Dimensions
Page Remarks
Small Reflectors
(for Retro-reflective Sensors)
E3T-SR4@E39-R4
1
20
Sensing distance 200 mm [30 mm] *1
Minimum detectable object 2-mm dia.
Provided with the E3T-SR4@
E3T-SR4@-S E39-R37-CA *2 Sensing distance 100 mm [10 mm] *1
Minimum detectable object 2-mm dia.
Provided with the E3T-SR4@-S
Tape Reflectors
(for Retro-reflective Sensors) E3T-SR4@-C
E39-RS1-CA *2
21
Sensing distance 100 mm [10 mm] *1
Minimum detectable object 2-mm dia.
Use Tape Reflectors in combination
with the E3T-SR4@-C, which
does not come with a Reflector.
E39-RS2-CA *2
E39-RS3-CA *2
E3T
5
Ratings and Specifications
* 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
Item
Rectangular type (Side-view) Rectangular type (Flat)
NPN
output
Light-ON E3T-ST31 E3T-ST31F E3T-ST11
E3T-ST11M
E3T-ST11F
E3T-ST11MF
E3T-ST21
E3T-ST21M
E3T-ST21F
E3T-ST21MF E3T-FT11 E3T-FT11F E3T-FT21 E3T-FT21F
Dark-ON E3T-ST32 E3T-ST32F E3T-ST12
E3T-ST12M
E3T-ST12F
E3T-ST12MF
E3T-ST22
E3T-ST22M
E3T-ST22F
E3T-ST22MF E3T-FT12 E3T-FT12F E3T-FT22 E3T-FT22F
PNP
output
Light-ON E3T-ST33 E3T-ST33F E3T-ST13
E3T-ST13M
E3T-ST13F
E3T-ST13MF
E3T-ST23
E3T-ST23M
E3T-ST23F
E3T-ST23MF E3T-FT13 E3T-FT13F E3T-FT23 E3T-FT23F
Dark-ON E3T-ST34 E3T-ST34F E3T-ST14
E3T-ST14M
E3T-ST14F
E3T-ST14MF
E3T-ST24
E3T-ST24M
E3T-ST24F
E3T-ST24MF E3T-FT14 E3T-FT14F E3T-FT24 E3T-FT24F
Sensing distance 2 m 1 m 300 mm 500 mm 300 mm
Standard sensing object Opaque, 3-mm dia. min. Opaque, 2-mm dia. min. Opaque, 1.3-mm dia. min.
Minimum detectable object
(reference value) Opaque, 3-mm dia. Opaque, 2-mm dia. Opaque, 1.3-mm dia.
Hysteresis (white paper) ---
Black/white error ---
Directional angle Emitter: 2° to 20°
Receiver: 2° to 70°
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)
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
Materi-
als
Case PBT (polybutylene terephthalate)
Display window Denatured polyarylate
Lens Denatured polyarylate
Hexagonal nuts ---
Toothed wash-
ers ---
Accessories *Instruction manual, Set screws for mounting (Side-view Sensors: M2 × 14, Flat Sensors: M2 × 8), Nuts
E3T
6
* Values in parentheses indicate the minimum required distance between the Sensor and Reflector.
Sensing method Through-beam
Retro-reflective (without M.S.R. function)
Appearance
Item
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
Protection circuits Power supply reverse polarity protection,
Output short-circuit protection
Power supply and control output reverse polar-
ity 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 55 Hz, 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 direc-
tions
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
Materi-
als
Case SUS303 PBT (polybutylene terephthalate)
Display window Polysulfone Denatured polyarylate
Lens Polysulfone Methacrylc resin
Hexagonal nuts SUS303 ---
Toothed wash-
ers 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)
7
E3T
* 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 Diffuse-reflective Limited-reflective BGS-reflective
Appearance
Item
Rectangular type (Flat) Cylindrical type (Top-view) Rectangular type (Side-view) Rectangular type (Flat)
NPN
output
Light-ON E3T-FD11
E3T-FD11M E3T-CD11 E3T-SL11
E3T-SL11M
E3T-SL21
E3T-SL21M E3T-FL11 E3T-FL21
Dark-ON E3T-FD12
E3T-FD12M --- E3T-SL12
E3T-SL12M
E3T-SL22
E3T-SL22M E3T-FL12 E3T-FL22
PNP
output
Light-ON E3T-FD13
E3T-FD13M E3T-CD13 E3T-SL13
E3T-SL13M
E3T-SL23
E3T-SL23M E3T-FL13 E3T-FL23
Dark-ON E3T-FD14
E3T-FD14M --- E3T-SL14
E3T-SL14M
E3T-SL24
E3T-SL24M E3T-FL14 E3T-FL24
Sensing distance 5 to 30 mm
(50 × 50 mm white paper)
3 to 50 mm
(100 × 100 mm white paper)
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.
(sensing distance 10 mm)
0.15-mm dia. non-glossy object
(sensing distance 10 mm)
Hysteresis (white paper) 6 mm max. 15% or less of the sensing
distance 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) Infrared LED (870 nm) 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. (re-
sidual 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
Load power supply voltage: 26.4 VDC max.
Load current: 50 mA max. (residual voltage: 2 V max. for load cur-
rent 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
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: 1 ms max. Operate or reset: 0.5 ms max. Operate or reset: 1 ms max.
Ambient illumination Incandescent lamp: 5,000 lx
max., Sunlight: 10,000 lx max.
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: −40 to 70°C
(with no icing or condensation)
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: 35% to 85%
Storage: 35% to 95%
(with no condensation)
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 1,000 VAC, 50/60 Hz for 1 min. 500 VAC, 50/60 Hz for 1 min. 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
10 to 55Hz, 1.5-mm double am-
plitude 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)
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 1,000m/s2 3 times each in X, Y, and Z directions
Degree of protection IEC 60529 IP67 IEC 60529 IP65 IEC 60529 IP67
Connection method Pre-wired (standard length: 2 m)
Weight (packed state) Approx. 20 g Approx. 40 g Approx. 20 g
Materi-
als
Case PBT (polybutylene terephtha-
late) SUS303 PBT (polybutylene terephthalate)
Display window Denatured polyarylate Epoxy Denatured polyarylate
Lens Denatured polyarylate Polysulfone Denatured polyarylate
Hexagonal nuts --- SUS303 ---
Toothed wash-
ers --- SUS303 ---
Accessories
Instruction manual, Set screws
for mounting (M2 × 8), Nuts *
Instruction manual, Hexagonal
nuts, Toothed washers, Adjust-
ment driver
Instruction manual, Set screws
for mounting (M2 × 14), Nuts *Instruction manual, Set screws
for mounting (M2 × 8), Nuts
8
E3T
Engineering Data (Reference Value)
M2-mounting and M3-mounting Sensors
Parallel Operating Range
Through-beam
E3T-ST3@ + E39-S63 E3T-ST1@ + E39-S63
E3T-ST1@M + E39-S76A/S76B (Overall Dia-
gram)
E3T-ST1@ + E39-S63
E3T-ST1@M + E39-S76A/S76B (Enlarged Di-
agram)
E3T-ST2@ + E39-S63
E3T-ST2@M + E39-S76A/S76B
E3T-ST3@F + E39-S63 E3T-ST1@F + E39-S63
E3T-ST1@MF + E39-S76A/S76B
(Overall Diagram)
E3T-ST1@F + E39-S63
E3T-ST1@MF + E39-S76A/S76B
(Enlarged Diagram)
E3T-ST2@F + E39-S63
E3T-ST2@MF + E39-S76A/S76B
200
150
100
50
0
−50
−100
−150
−200
1.0 2.0 3.0 4.0 5.0
X
Y
0.5-dia
Slit
Distance X (m)
1.0-dia Slit
Distance Y (mm)
Without Slit
(A Slit is mounted to the Emitter and Receiver.)
200
150
100
50
0
−50
−100
−150
−200
0.4 0.81.2 1.6 2.0
X
Y
0.5-dia Slit
Distance X (m)
1-dia Slit
Distance Y (mm)
Without Slit
(A Slit is mounted to the Emitter and Receiver.)
80
60
40
20
0
−20
−40
−60
−80
40 80 120 160 200
X
Y
Distance Y (mm)
1-dia Slit 0.5-dia Slit
Distance X (mm)
(A Slit is mounted to the Emitter and Receiver.)
20
15
10
5
0
−5
−10
−15
−20
25
−25
200 400 800600
X
Y
Without Slit
Distance X (mm)
Distance Y (mm)
1-dia Slit
0.5-dia Slit
(A Slit is mounted to the Emitter and Receiver.)
200
150
100
50
0
−50
−100
−150
−200
1.0 2.0 3.0 5.04.0
Without Slit
Distance X (m)
Distance Y (mm)
1-dia Slit
0.5-dia Slit
(A Slit is mounted to the Emitter and Receiver.)
X
Y
0.4 0.81.2 1.6 2.0
X
Y
200
150
100
50
0
−50
−100
−150
−200
Without Slit
Distance X (m)
Distance Y (mm)
1-dia Slit
0.5-dia Slit
(A Slit is mounted to the Emitter and Receiver.)
40 80 120 160 200
80
60
40
20
0
−
20
−
40
−
60
−
80
X
Y
Without Slit
Distance X (mm)
Distance Y (mm)
1-dia Slit
0.5-dia Slit
(A Slit is mounted to the Emitter and Receiver.)
25
20
15
10
5
0
−5
−10
−15
−20
−25
200 400 800600
X
Y
Without Slit
Distance X (mm)
Distance Y (mm)
1-dia Slit
0.5-dia Slit
(A Slit is mounted to the Emitter and Receiver.)
9
E3T
E3T-FT1@ + E39-S64 (Overall Diagram) E3T-FT1@ + E39-S64 (Enlarged Diagram) E3T-FT2@ + E39-S64
E3T-FT1@F + E39-S64 (Overall Diagram) E3T-FT1@F + E39-S64 (Enlarged Diagram) E3T-FT2@F + E39-S64
Operating Range
Retro-reflective Limited-reflective
E3T-SR4@E3T-SL1@(M) E3T-SL2@(M)
Diffuse-reflective BGS-reflective
E3T-FD1@(M) E3T-FL1@E3T-FL2@
200
150
100
50
0
−50
−100
−150
−200
0.4 0.6 0.811.21.40.2
Y
1-dia Slit
Without Slit Distance X (m)
Distance Y (mm)
0.5-dia Slit
X
(A Slit is mounted to the Emitter and Receiver.)
80
60
40
20
0
−20
−40
−60
−80
40 80 120 160 200
Y
Distance Y (mm)
0.5-dia Slit
1-dia Slit
Distance X (mm)
X
(A Slit is mounted to the Emitter and Receiver.)
60
40
20
0
−20
−40
−60
80
−80
200 400 600 800
Y
1-dia Slit
Distance X
(mm)
Distance Y (mm)
Without Slit
0.5-dia Slit
X
(A Slit is mounted to the Emitter and Receiver.)
0.4 0.6 0.811.21.40.2
200
150
100
50
0
−50
−100
−150
−200
x
Y
1-dia Slit
Without Slit
Distance X (m)
Distance Y (mm)
0.5-dia Slit
(A Slit is mounted to the Emitter and Receiver.)
80
60
40
20
0
−20
−40
−60
−80
40 80 120 160 200
x
Y
1-dia Slit
Without Slit
Distance X (mm)
Distance Y (mm)
0.5-dia Slit
(A Slit is mounted to the Emitter and Receiver.)
60
40
20
0
−20
−40
−60
0.2 0.4 0.6 0.81.0 1.2
x
Y
1-dia Slit
Without Slit
Distance X (m)
Distance Y (mm)
0.5-dia Slit
(A Slit is mounted to the Emitter and Receiver.)
40
30
20
10
0
−10
−20
−30
−40
400100 200 300
Y
X
E3T-SR4@+E39-R4
E3T-SR4@+E39-R37-CA
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
−4
10 20 30 40
Y
X
Distance Y (mm)
Sensing object:
50 x 50 mm white paper
Distance X (mm)
3
2
1
0
−1
−2
−3
4
−4
10 20 30 40
Y
X
Sensing object:
50 x 50 mm white paper
Distance Y (mm)
Distance X
(mm)
4
3
2
1
0
−1
−2
−3
−4
5
−5
268410121416
Y
X
Distance X (mm)
Distance Y (mm)
Sensing object:
50 x 50 mm white paper
8
6
4
2
0
−2
−4
−6
−8
10
−10
5152010 25 30 35
Y
X
Distance X (mm)
Distance Y (mm)
Sensing object:
50 x 50 mm white paper
E3T
10
Inclination Detection Area Characteristic
Limited-reflective
E3T-SL1@(M) (Top to Bottom) E3T-SL1@(M) (Right to Left)
E3T-SL2@(M) (Top to Bottom) E3T-SL2@(M) (Right to Left)
BGS-reflective
E3T-FL1@ (Top to Bottom) E3T-FL1@ (Right to Left)
E3T-FL2@ (Top to Bottom) E3T-FL2@ (Right to Left)
10
20
0100−10
Distance (mm)
Angle θ (°)
Glass
t: 0.7 mm
Stainless steel
Angle of
inclination
−θ+θ
10
20
0100−10
Distance (mm)
Angle θ (°)
Stainless steel
Angle of
inclination
−θ+θ
Glass
t: 0.7 mm
20
40
30
10
0100−10
Angle θ (°)
Stainless steel
Distance (mm)
Angle of
inclination
−θ+θ
Glass
t: 0.7 mm
20
40
30
10
0100−10
Angle θ (°)
Stainless steel
Distance (mm)
Angle of
inclination
−θ+θ
Glass
t: 0.7 mm
10
20
0100−10
Stainless steel
Angle θ (°)
Distance (mm)
Angle of
inclination
White paper Center
line
+θ
−θ
Glass
t: 0.7 mm
10
20
0100−10
Angle θ (°)
Distance (mm)
Angle of
inclination
White paper Center
line
+θ
−θ
Stainless steel
Glass
t: 0.7 mm
20
10
30
40
0100−10
Angle θ (°)
Stainless steel
Distance (mm)
Angle of
inclination
White
paper Center
line
+θ
−θ
Glass
t: 0.7 mm
20
10
30
40
0100−10
Stainless steel
Angle θ (°)
Angle of
inclination
White paper Center
line
+θ
−θ
Distance (mm)
Glass
t: 0.7 mm
11
E3T
Excess Gain vs. Set Distance
Through-beam
E3T-ST3@E3T-ST1@(M) E3T-ST2@(M)
E3T-ST3@FE3T-ST1@FE3T-ST2@F
E3T-FT1@E3T-FT2@
E3T-FT1@FE3T-FT2@F
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
40003000200010000
Excess gain ratio
Operating
level
Set distance (mm)
100
50
30
10
5
3
1
0.5
0.3
0.1 12009006003000
Operating
level
Set distance (mm)
Excess gain ratio
100
10
30
50
1
3
5
8000 100006000400020000
Excess gain ratio
Operating
level
Set distance (mm)
100
10
14000 5000 60003000200010000
30
50
3
5
Excess gain ratio
Operating
level
Set distance (mm)
100
10
120001000 15005000
30
50
3
5
Excess gain ratio
Operating
level
Set distance (mm)
100
50
30
10
5
3
1
0.5
0.3
0.10 400 800 1200 1600 2000
Excess gain ratio
Operating
level
Set distance (mm)
100
50
30
10
5
3
1
0.5
0.3
0.1 2000150010005000
Excess gain ratio
Operating
level
Set distance (mm)
100
10
12000 2500 3000150010005000
30
50
3
5
Excess gain ratio
Operating
level
Set distance (mm)
1400600 12001000800200 4000
100
50
30
10
5
3
1
0.5
0.3
0.1
Excess gain ratio
Operating
level
Set distance (mm)
E3T
12
Retro-reflective Diffuse-reflective
E3T-SR4@E3T-FD1@(M)
Limited-reflective
E3T-SL1@(M) E3T-SL2@(M)
Sensing Object Size vs. Sensing Distance
Limited-reflective Diffuse/Limited-reflective
E3T-SL1@(M) E3T-FD1@(M)/E3T-SL2@(M)
Sensing Distance Characteristics of Sensitivity Adjustment Unit (when Completing Optical Axis Adjustment)
E3T-ST1@ + E39-E10 Sensitivity Adjustment Unit
E3T-ST3@ + E39-E10 Sensitivity Adjustment Unit
100
50
30
10
5
3
1
0.5
0.3
0.1
3002001000
Set distance (mm)
Excess gain ratio
Operating
level
E3T-SR4@+E39-R37-CA
E3T-SR4@+E39-R4
100
50
30
10
5
3
1
0.5
0.3
0.10 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
0.10 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)
Set distance (mm)
0 5 10 15 20 25 30
10
8
6
4
2
E3T-FD1@(M)
E3T-SL2@(M)
Min. sensing object dia. (mm)
Sensing object: Pin-gauge, stainless steel
Set distance (mm)
Min 1/3 1/2 2/3 Max
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0
E3T-ST3@
E3T-ST1@
Adjustment dial angle
Sensing distance (m)
13
E3T
Small Cylindrical Sensors
Sensing Distance vs. Material
Limited-reflective Diffuse-reflective
E3T-SL1@(M) E3T-SL2@(M) E3T-FD1@(M)
BGS-reflective
E3T-FL1@E3T-FL2@
Parallel Operating Range
Through-beam
E3T-CT1@E3T-CT2@S (Top to Bottom) E3T-CT2@S (Right to Left)
Operating Range Sensing Distance vs. Material
Diffuse-reflective Diffuse-reflective
E3T-CD1@E3T-CD1@
25
20
15
10
5
0
Material
Sensing distance (mm)
White
paper
Stainless
steel
Plywood
Cardboard
Glass
sheet
Black
rubber
Black
paper
50
40
30
20
10
0
Sensing distance (mm)
Material
White
paper
Stainless
steel
Plywood
Cardboard
Glass
sheet
Black
rubber
Black
paper
70
60
50
40
30
20
10
0
Sensing distance (mm)
Material
White
paper
Stainless
steel
Plywood
Cardboard
Glass
sheet
Black
rubber
Black
paper
20
15
10
5
0
Sensing distance (mm)
Material
White
paper
Stainless
steel
Plywood
Cardboard
Glass
sheet
Black
rubber
Black
paper
40
30
20
10
0
Sensing distance (mm)
Material
White
paper
Stainless
steel
Plywood
Cardboard
Glass
sheet
Black
rubber
Black
paper
80
60
40
20
0
−20
−40
−60
−80
0.25 0.5 0.75 1.0 1.25 1.5 1.75
Y
X
Distance X (m)
Distance Y (mm)
200
150
100
50
0
−50
−100
−150
−200
0.2 0.4 0.6 0.80.70.50.30.1
Y
X
Distance X (m)
Distance Y (mm)
200
150
100
50
0
−50
−100
−150
−200
0.2 0.4 0.6 0.80.70.50.30.1
Y
X
Distance X (m)
Distance Y (mm)
20
15
10
5
0
−5
−10
−15
−20
20 3010 40 50 60 70 80
Y
X
Distance X (m)
Distance Y (mm)
Sensing object:
100 x 100 mm white paper
120
110
100
90
80
70
60
50
40
30
20
10
0
Sensing distance (mm)
Material
White
paper
Stainless
steel
Plywood
Cardboard
Glass
sheet
Black
rubber
Black
paper
14
E3T
I/O Circuit Diagrams
NPN Output
PNP Output
Model Operation mode Timing charts Output circuit
E3T-@@@1(F)
E3T-@@@1M(F) Light-ON
E3T-@@@2(F)
E3T-@@@2M(F)
E3T-@@@2S
Dark-ON
Light incident
Light interrupted
Operation indicator
(orange)
ON
OFF
Output
transistor
Load
(e.g., relay)
Operate
Reset
ON
OFF
(Between brown (1)
and black (4) leads)
1
3
4
3
1
ZD
0 V
Through-beam Receivers and Reflective Sensors
Operation
indicator
(orange)
Stability
indicator
(green)
Photo-
electric
Sensor
Main
Circuit
Brown
Black
Blue
(Control output)
12 to 24 VDC
Load
(relay)
Through-beam Emitters
Brown
Blue
12 to 24 VDC
Photo-
electric
Sensor
Main
Circuit
*1
50 mA
max.*2
*1.There is no diode for Small Cylindrical Sensors
(E3T-C@@@(S)).
*2. This is 80 mA max. for Small Cylindrical Sensors
(E3T-C@@@(S)).
Operation indicator
(orange)
ON
OFF
Output
transistor
Load
(e.g., relay)
Operate
Reset
ON
OFF
(Between brown (1)
and black (4) leads)
Light incident
Light interrupted
Model Operation mode Timing charts Output circuit
E3T-@@@3(F)
E3T-@@@3M(F) Light-ON
E3T-@@@4(F)
E3T-@@@4M(F)
E3T-@@@4S
Dark-ON
Operation indicator
(orange)
ON
OFF
Output
transistor
Load
(e.g., relay)
Operate
Reset
ON
OFF
(Between blue (3)
and black (4) leads)
Light incident
Light interrupted
1
3
4
1
3
0 V
ZD
*1
Through-beam Receivers and Reflective Sensors
Through-beam Emitters
Operation
indicator
(orange)
Stability
indicator
(green)
Photo-
electric
Sensor
Main
Circuit
Photo-
electric
Sensor
Main
Circuit
Brown
Blue
12 to 24 VDC
50 mA
max.*2
Brown
Black
Blue
12 to 24 VDC
Load
(relay)
(Control output)
*1.There is no diode for Small Cylindrical Sensors
(E3T-C@@@(S)).
*2. This is 80 mA max. for Small Cylindrical Sensors
(E3T-C@@@(S)).
Operation indicator
(orange)
ON
OFF
Output
transistor
Load
(e.g., relay)
Operate
Reset
ON
OFF
(Between blue (3)
and black (4) leads)
Light incident
Light interrupted
E3T
15
Safety Precautions
Refer to Warranty and Limitations of Liability.
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 environments that exceed
product ratings.
● Wiring
The maximum power supply voltage is 26.4 VDC. Before turning the
power ON, make sure that the power supply voltage 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 1.5 times larger than the rated
load current. When using a capacitance load, be sure that the inrush
current will not exceed 1.5 times larger than the rated current.
●Mounting
When mounting the Sensor, never strike it with a heavy object, such
as a hammer. Doing so may reduce its watertight properties. Use
screws with spring, flat, or toothed washers to secure the Sensor.
Tightening Torque
M2-mounting Sensors: 0.15 N·m max
M3-mounting Sensors: 0.5 N·m max
Small Cylindrical Sensors: 1 N·m max
Attachment to Moving Parts
To mount the Photoelectric Sensor to a moving part, such as a robot
hand, consider using a Sensor that uses a bending-resistant cable
(robot cable).
●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 indicator 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.
E3T-CD@@ Sensitivity Adjustment
Use the special screwdriver that is provided with the Sensor to adjust
the sensitivity. Do not exceed 0.8 N·cm when turning the adjuster.
●Others
Do not use the product under the following conditions.
•In the place exposed to the direct sunlight.
•In the place where humidity is high and condensation may occur.
•In the place where corrosive gas exists.
•In the place where vibration or shock is directly transmitted to the
product.
WARNING
Precautions for Correct Use
Stable
operation
range
*
Unstable
operation
range
*
Stable
operation
range
*
Operating
level x 1.2
Operating
level
Operating
level x 0.8
Light
ON
ON
ON
ON
OFF
OFF
OFF
Stability
indicator
(green)
Operation indicator (orange)
E3T-@@@1
E3T-@@@3
E3T-@@@2
E3T-@@@4
*
If the E3T’s 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.)
16
E3T
Dimensions
Sensors
(Unit: mm)
Tolerance class IT16 applies to dimensions in this datasheet unless otherwise specified.
Two, M2 holes
9±0.2
7 7
7.7
2.7
9
3.8
3.9
2.2
4.8
9.5 9.5
14.6 14.6
2.4-dia. vinyl-insulated round cable
with 2 conductors (Conductor cross
section: 0.1 mm² (AWG27),
Insulator diameter: 0.7 mm),
Standard length: 2 m
Emitter
lens
(1.3 dia.)
Mounting Holes
Two, 2.2 dia. *
*The mounting holes are made of SUS301.
M2-mounting Sensors
Through-beam Side-view Sensors
E3T-ST1@(F) (Emitter)
E3T-ST2@(F) (Emitter)
E3T-ST3@(F) (Emitter)
Emitter: E3T-ST@@(F)-L
Receiver: E3T-ST@@(F)-D
Two, M2 holes
9±0.2
7
7.7
2.7
9
3.8
3.9
2.2
4.8
14.614.6
9.59.5
2.4-dia. vinyl-insulated round cable
with 3 conductors (Conductor cross
sect ion: 0.1 mm² (AWG27),
Insulator diameter: 0.7 mm),
St andard length: 2 m
Operation
indicator
Two, 2.2 dia. *
Receiver
lens *
Stability
indicator Mounting Holes
*The receiver lens diameters
are given below.
Model Receiver lens
diameter
E3T-ST1@-D
E3T-ST2@-D (1.3 dia.)
E3T-ST3@-D (2.4 dia.)
E3T-ST1@(F) (Receiver)
E3T-ST2@(F) (Receiver)
E3T-ST3@(F) (Receiver)
*The mounting holes are made of SUS301.
3.53.5
1.75 1.75
4.4
8
12 12
14
3.2
8.6 15.815.8
8
±0.2
Two, M2 holes
Emitter
lens
(1.3 dia.)
2.4-dia. vinyl-insulated round cable
with 2 conductors (Conductor cross
section: 0.1 mm² (AWG27),
Insulator diameter: 0.7 mm),
Standard length: 2 m
Two, 2.2 dia. *
Mounting Holes
Through-beam Flat Sensors
E3T-FT1@(F) (Emitter)
E3T-FT2@(F) (Emitter)
Emitter: E3T-FT@@(F)-L
Receiver: E3T-FT@@(F)-D *The mounting holes are made of SUS301.
E3T-FT1@(F) (Receiver)
E3T-FT2@(F) (Receiver)
14
3.2
1.75
4.4
8
3.5
3.5
3.5
3.5
8.6 15.8
15.8
12
12
8
±0.2
Two, M2 holes
Operation indicator
Receiver
lens
(1.3 dia.)
Two, 2.2 dia. *
2.4-dia. vinyl-insulated round cable
with 3 conductors (Conductor cross
section: 0.1 mm² (AWG27),
Insulator diameter: 0.7 mm),
Standard length: 2 m
Stability indicator Mounting Holes
*The mounting holes are made of SUS301.
17
E3T
9.2
15
4.5
3.8
3.9
6.3
1111
15
±0.2
3.7
7
20.620.6
Two, M2 holes
Operation
indicator
Mounting Holes
2.4-dia. vinyl-insulated round cable
with 3 conductors (Conductor cross
section: 0.1 mm² (AWG27),
Insulator diameter: 0.7 mm),
Standard length: 2 m
Lens
(2.0 dia.)
Two, 2.2 dia. *
Stability
indicator
Retro-reflective Side-view Sensors
E3T-SR4@
*The mounting holes are made of SUS301.
20.8 20.8
12 12 3.5 3.5
1.75
13.4
4.4
8
4
19 20.8
3.2
8±0.2
Two, M2 holes
Operation
indicator
2.4-dia. vinyl-insulated round cable
with 3 conductors (Conductor cross
section: 0.1 mm² (AWG27),
Insulator diameter: 0.7 mm),
Standard length: 2 m
Stability
indicator
Receiver
lens (2.0 dia.)
Two, 2.2 dia. *
Emitter lens
(1.5 dia.)
Mounting Holes
Diffuse-reflective Flat Sensors
E3T-FD1@
*The mounting holes are made of SUS301.
7 7
9.2
15
4
5
3.8
3.9
6.3
11 11
3.7
20.6 20.6 15±0.2
Two, M2 holes
Operation
indicator
2.4-dia. vinyl-insulated round cable
with 3 conductors (Conductor cross
section: 0.1 mm² (AWG27),
Insulator diameter: 0.7 mm),
Standard length: 2 m
Emitter lens
(4.0 dia.)
Receiver lens
(4.0 dia.)
Two, 2.2 dia. *
Stability
indicator
Mounting Holes
Limited-reflective Side-view Sensors
E3T-SL1@
E3T-SL2@
*The mounting holes are made of SUS301.
E3T
18
12
12
3.5
3.5
1.75
19
3.2
4.4
8
6
7.35
20.8
20.8
8±0.2
Two, M2 holes
Operation
indicator
Receiver lens
(2.8 square)
Emitter lens
(1.5 dia.)
Two, 2.2 dia. *
2.4-dia. vinyl-insulated round cable
with 3 conductors (Conductor cross
section: 0.1 mm² (AWG27),
Insulator diameter: 0.7 mm),
Standard length: 2 m
Stability
indicator
Mounting Holes
BGS-reflective Flat Sensors
E3T-FL1@
E3T-FL2@
*The mounting holes are made of SUS301.
Two, M3 holes
7
12.812.8
10
13±0.2
3
2.5
6.5
13
2222
6.3
3.9
2.4-dia. vinyl-insulated round cable
with 2 conductors (Conductor cross
section: 0.1 mm² (AWG27),
Insulator diameter: 0.7 mm),
Standard length: 2 m
Emitter
lens
(1.3 dia.)
Mounting Holes
Two, 3.2 dia. *
M3-mounting Sensors
Through-beam Side-view Sensors
E3T-ST1@M(F) (Emitter)
E3T-ST2@M(F) (Emitter)
Emitter: E3T-ST@@(F)M-L
Receiver: E3T-ST@@(F)M-D *The mounting holes are made of SUS304.
3
712.812.8
10
6.3
6.5
13
2.5
2222
3.9
Two, M3 holes
13
±0.2
2.4-dia. vinyl-insulated round cable
with 3 conductors (Conductor cross
sect ion: 0.1 mm² (AWG27),
Insulator diameter: 0.7 mm),
St andard length: 2 m
Operation
indicator
Receiver
lens
(1.3 dia.)
Stability
indicator
Mounting Holes
Two, 3.2 dia. *
E3T-ST1@M(F) (Receiver)
E3T-ST2@M(F) (Receiver)
*The mounting holes are made of SUS304.
19
E3T
4.2
12.6
16
16
4
3.5
10
14.8
20.4
23.4
23.4
4
3.1
Two, M3 holes
10
±0.2
Operation
indicator
2.4-dia. vinyl-insulated round cable
with 3 conductors (Conductor cross
section: 0.1 mm² (AWG27),
Insulator diameter: 0.7 mm),
Standard length: 2 m
Stability
indicator
Receiver
lens (2.0 dia.)
Two, 3.2 dia. *
Emitter lens
(1.5 dia.)
Mounting Holes
Diffuse-reflective Flat Sensors
E3T-FD1@M
*The mounting holes and plate are made of
SUS304.
3
16
2.5
6.3
3.9
10
12.8
12.8
7
22
22
5
4.8
Two, M3 holes
16
±0.2
Operation
indicator
2.4-dia. vinyl-insulated round cable
with 3 conductors (Conductor cross
section: 0.1 mm² (AWG27),
Insulator diameter: 0.7 mm),
Standard length: 2 m
Emitter lens
(4.0 dia.)
Receiver lens
(4.0 dia.)
Two, 3.2 dia. *
Stability
indicator
Mounting Holes
Limited-reflective Side-view Sensors
E3T-SL1@M
E3T-SL2@M
*The mounting holes are made of SUS304.
826.226.2
3.5
M5×0.5M5×0.5
2.5 9.7
4.4
5.6 dia.
(1.8)2.5-dia. vinyl-insulated round cable
with 2 conductors (Conductor cross
section: 0.15 mm² (AWG25),
Insulator diameter: 0.8 mm),
Standard length: 2 m
Mounting Hole
10 dia.
5.5
+0.5
−0
Optical
axis
Toothed
washer
Two, hexagonal nuts (M5)
10 dia.
8
(1)
26.226.2
3.5
M5×0.5M5×0.5
2.5 9.7
4.4
5.6 dia.
5.5
+0.5
−0
Optical
axis
Two, hexagonal nuts (M5)
Toothed
washer
Operation
Indicator
2.7-dia. vinyl-insulated round cable
with 3 conductors (Conductor cross
section: 0.15 mm² (AWG25),
Insulator diameter: 0.85 mm),
Standard length: 2 m
Stability
indicator
Mounting Hole
Small Cylindrical Sensors
Through-beam Top-view Sensors
E3T-CT1@ (Emitter)
E3T-CT1@ (Receiver)
Emitter: E3T-CT1@-L
Receiver: E3T-CT1@-D
E3T
20
Accessories
8
27.227.2
13.1 3.56.2
2.2
M5×0.5M5×0.5
2.5 9.7
10 dia.
5.6 dia.
5.5
+0.5
−0
Optical
axis
Two, hexagonal nuts (M5)
Toothed
washer
Operation
indicator
2.7-dia. vinyl-insulated round cable
with 3 conductors (Conductor cross
section: 0.15 mm² (AWG25),
Insulator diameter: 0.85 mm),
Standard length: 2 m
Stability
indicator
Mounting Hole
6.2
27.2
27.2
3.513.1
2.5 9.7
2.2
8
M5×0.5
M5×0.5
10 dia.
5.6 dia.
5.5
+0.5
−0
Optical
axis
Two, hexagonal nuts (M5) Toothed
washer
2.5-dia. vinyl-insulated round cable
with 2 conductors (Conductor cross
section: 0.15 mm² (AWG25),
Insulator diameter: 0.8 mm),
Standard length: 2 m
Mounting Hole
Through-beam Side-view Sensors
E3T-CT2@S (Emitter)
E3T-CT2@S (Receiver)
Emitter: E3T-CT2@S-L
Receiver: E3T-CT2@S-D
2.4 dia.
M6×0.75M6×0.75
22.6
19.9
2.8
12
6.517
29.129.1
6.8 dia.
8
11 dia.
(1.2)
6.5 +0.5
−0
Optical
axis
Two, hexagonal nuts (M6)
Toothed
washer
Operation
indicator
2.7-dia. vinyl-insulated round cable
with 3 conductors (Conductor cross
section: 0.15 mm² (AWG25),
Insulator diameter: 0.85 mm),
Standard length: 2 m
Stability
indicator Mounting Hole
Sensitivity adjuster
Diffuse-reflective Top-view Sensors
E3T-CD1@
13.7
9.7
8.7
23 19 18
Two, 2.2 dia. 1.4
4.9
4
4
14
4.7
Reflector (Provided with E3T-SR4@)
E39-R4
Material, reflective surface: acrylic
Rear surface: ABS
10.2
8.7
13.7
13.7
18.323 18.3 23
(1.1)
Two, R1.55
Mounting bracket Reflector
Reflective
surface:
acrylic
Mounting
Bracket:
t 0.5
Reflector: t 0.5
(adhesive tape side)
Two, 3.1 dia.
Reflector (Provided with E3T-SR4@-S)
E39-R37-CA
Material: Mounting plate: stainless
steel (SUS301)
Reflective surface: acrylic Note: The reflective plate and mounting plate (1) come as a set.
21
E3T
Accessories (Order Separately)
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
Tape Reflectors
E39-RS1-CA
35
Four, R1 Adhesive tape side
0.5
10
Material: Acrylic
E39-RS3-CA
Material: Acrylic
80
70
0.5
Four, R1 Adhesive tape side
E39-RS2-CA
Material: Acrylic
40 0.5
35
Four, R1 Adhesive tape side
Two, 2.2 dia.
2.7
2.7
12.6
9.7
1.0±0.05 dia.
0.5±0.05 dia.
7.4
Notch
With Slit Attachment
Material: 0.2-mm
thick stainless steel
(SUS301)
Note: Align the notch direction
of the Slit when
installing on the Emitter
and Receiver.
12.3
12
(4.1)
0.5 dia.
1 dia.
With Slit Attachment
Material: 0.1-mm thick stain-
less steel (SUS301)
0.5±0.05 dia.
7.4
19
Two,
3.2
×
3.4
12.2
6.5
13.2 10.4
13.2 13.2
Material: 0.2-mm thick stain-
less steel (SUS301)
With Slit Attachment
1.0±0.1 dia.
7.4
19
Two,
3.2
×
3.4
12.2
6.5
13.2
13.2 10.4
Material: 0.2-mm thick stainless steel
(SUS301)
With Slit Attachment
2 dia.
Optical
axis
90°
7.4 (10.1)
4
(15.1) 18.7
9.7
5.8
Adjuster
With Sensitivity Adjustment
Unit Attachment
Material: stainless steel (SUS301)
E3T
22
7.5
(17.8)
4.1
Two, 3.4
5
1.6
4
11
9.5
2.2
31.2
1.2
2.4
10
90°
20.5 15
3
9
7
31
24.5
31.2
9.7
(12)
17.8
6.2
7.7
With Mounting Bracket (Example: E3T-ST11)
(Two, R2)
(Two, R2)
(Two, R1.1)
(Two, R1.2)
(Two, R1.7)
R1.5 max.
(Four, R2) Three, M2 Two, M2 × 14
Mounting Bracket for M2-mounting Side-view Sensors
E39-L116
Material: 1.2-mm-thick
stainless steel
(SUS304)
23
20.5 15
3
9
7
(12)
11.2
7.7
Two, R2
90°
2.4
(23) 15
9
4
9
Two, 2.2
5
5
10
(11.2)
10.2
16.3
11.2
6.2
1.2
(Two, R1.7)
(Two, R1.7)
Two, M2 × 14
R1 max.
(Two, R1.1)
(Two, R2)
(Four, R2) Three, M2
With Mounting Bracket (Example: E3T-ST11)
951811.5 15
11.2
3.4
4.5
Mounting Bracket for M2-mounting Side-view Sensors
E39-L117
Material: 1.2-mm-thick stainless
steel (SUS304)
23
E3T
20.5 15
3
9
7
7.7
90°
90°
11.5
11.5
22.7
5
2.4
Two, 2.2
4
9
9
15
4.5
5
3.4
(23)
1811.5
23
16.3
13.2
9
1.2
15
(Two, R1.7)
(Four, R2)
(Two, R1.1)
Two, M2 × 14
(Four, R2) Three, M2
With Mounting Bracket (Example: E3T-ST11)
Mounting Bracket for M2-mounting Side-view Sensors
E39-L118
Material: 1.2-mm-thick stainless
steel (SUS304)
1216
90°
8
97
3.2
2.4
8
2.4
15
10.5
10.6
973.5
1.2
Four, M2 tapped holes
Two, M 2 × 8
With Mounting Bracket
(Example: E3T-FT11)
Mounting Bracket for M2-mounting Flat Sensors
E39-L119
Material: 1.2-mm-thick stainless
steel (SUS304)
1216
8
13.56
3.2
2.4
2.4
8
14
22.5
4.2
(5.4)
10.6
(6.4)
13.5
1.2
Four, M2 tapped holes
Two, M2 × 8
With Mounting Bracket
(Example: E3T-FT11)
Mounting Bracket for M2-mounting Flat Sensors
E39-L120
Material: 1.2-mm-thick stainless
steel (SUS304)
E3T
24
1.2
3Three, M3
23
13.5
15
13.5
(12.6)
10 8.5
12.5
22
12.9
4
8
16
90°
Two, M3 × 15
With Mounting Bracket
(Example: E3T-ST11M)
13
3.2
6.5
2.8
3.4
4.5
(15)
13.8
16
23
13.5
5 11.5
18
Two, R2
Mounting Bracket for M3-mounting Side-view Sensors
E39-L166
Material: 1.2-mm-thick stainless
steel (SUS304)
Two, M3 × 6
With Mounting Bracket
(Example: E3T-FD11M)
5
3.2
1.5
2.4
17.5
2.4
Four, M3 tapped holes
17
14.5
13.8
17.8
(10.5)
(6.5)
17
29
18
10
23.5
Mounting Bracket for M3-mounting Flat Sensors
E39-L167
Material: 1.5-mm-thick stainless
steel (SUS304)
4
0.3
12.6
8.3
10.8
14.8
28.7
16
10 (7.3)
Back-mounting Spacer for M3-mounting Flat Sensors
E39-L168
Note: Use this Spacer when mounting the Sensor from the back.
Material: PBT (polybutylene
terephthalate)
Terms and Conditions Agreement
Read and understand this catalog.
Please read and understand this catalog before purchasing the products. Please consult your OMRON representative if you have
any questions or comments.
Warranties.
(a) Exclusive Warranty. Omron’s exclusive warranty is that the Products will be free from defects in materials and workmanship
for a period of twelve months from the date of sale by Omron (or such other period expressed in writing
by Omron). Omron disclaims all other warranties, express or implied.
(b) Limitations. OMRON MAKES NO WARRANTY OR REPRESENTATION, EXPRESS OR IMPLIED, ABOUT
NON-INFRINGEMENT, MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE OF THE
PRODUCTS. BUYER ACKNOWLEDGES THAT IT ALONE HAS DETERMINED THAT THE PRODUCTS WILL
SUITABLY MEET THE REQUIREMENTS OF THEIR INTENDED USE.
Omron further disclaims all warranties and responsibility of any type for claims or expenses based on infringement by the Products
or otherwise of any intellectual property right. (c) Buyer Remedy. Omron’s sole obligation hereunder shall be, at Omron’s election,
to (i) replace (in the form originally shipped with Buyer responsible for labor charges for removal or replacement thereof) the
non-complying Product, (ii) repair the non-complying Product, or (iii) repay or credit Buyer an amount equal to the purchase price
of the non-complying Product; provided that in no event shall Omron be responsible for warranty, repair, indemnity or any other
claims or expenses 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. Return of any Products by
Buyer must be approved in writing by Omron before shipment. Omron Companies shall not be liable for the suitability or
unsuitability or the results from the use of Products in combination with any electrical or electronic components, circuits, system
assemblies or any other materials or substances or environments. Any advice, recommendations or information given orally or in
writing, are not to be construed as an amendment or addition to the above warranty.
See http://www.omron.com/global/ or contact your Omron representative for published information.
Limitation on Liability; Etc.
OMRON COMPANIES SHALL NOT BE LIABLE FOR SPECIAL, INDIRECT, INCIDENTAL, OR CONSEQUENTIAL DAMAGES,
LOSS OF PROFITS OR PRODUCTION OR COMMERCIAL LOSS IN ANY WAY CONNECTED WITH THE PRODUCTS,
WHETHER SUCH CLAIM IS BASED IN CONTRACT, WARRANTY, NEGLIGENCE OR STRICT LIABILITY.
Further, in no event shall liability of Omron Companies exceed the individual price of the Product on which liability is asserted.
Suitability of Use.
Omron Companies shall not be responsible for conformity with any standards, codes or regulations which apply to the
combination of the Product in the Buyer’s application or use of the Product. At Buyer’s request, Omron will provide applicable
third party certification documents identifying ratings and limitations of use which apply to the Product. This information by itself is
not sufficient for a complete determination of the suitability of the Product in combination with the end product, machine, system,
or other application or use. Buyer shall be solely responsible for determining appropriateness of the particular Product with
respect to Buyer’s application, product or system. Buyer shall take application responsibility in all cases.
NEVER USE THE PRODUCT FOR AN APPLICATION INVOLVING SERIOUS RISK TO LIFE OR PROPERTY OR IN LARGE
QUANTITIES WITHOUT ENSURING THAT THE SYSTEM AS A WHOLE HAS BEEN DESIGNED TO ADDRESS THE RISKS,
AND THAT THE OMRON PRODUCT(S) IS PROPERLY RATED AND INSTALLED FOR THE INTENDED USE WITHIN THE
OVERALL EQUIPMENT OR SYSTEM.
Programmable Products.
Omron Companies shall not be responsible for the user’s programming of a programmable Product, or any consequence thereof.
Performance Data.
Data presented in Omron Company websites, catalogs and other materials 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 user must correlate it
to actual application requirements. Actual performance is subject to the Omron’s 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 part 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 part numbers may be
assigned to fix or establish key specifications for your application. Please consult with your Omron’s representative at any time to
confirm actual specifications of purchased Product.
Errors and Omissions.
Information presented by Omron Companies has been checked and is believed to be accurate; however, no responsibility is
assumed for clerical, typographical or proofreading errors or omissions.
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Printed in Japan
0514 (1010)
Cat. No. E407-E1-02
© OMRON Corporation 2010-2014 All Rights Reserved.
CSM_6_4_0618
