Ultracompact, Ultrathin Photoelectric Sensor with Built-in Amplifier
E3T
The Improved E3T Series with Easier,
Smoother Mounting and Installation
• Newly added 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 also added to the Series.
(E3T-C@@@(S)).
Be sure to read
Safety Precautions
on page 13.
Lineup Overview
Appearance
Side-view
M2-mounting
Sensing
method
Through-beam
Retro-
reflective
Diffuse-
reflective
Convergent-
reflective
BGS-
reflective
●
●
---
●
---
M3-mounting
Rectangular
type
Flat
M2-mounting
●
---
---
●
---
●
---
●
---
●
M3-mounting
---
---
●
---
---
Top-view
---
Cylindrical
type
●
---
●
---
---
Side-view
---
●
---
---
---
---
1
E3T
Ordering Information
Sensors
[Refer to Dimensions on page 14.]
M2-mounting Sensors
Sensing method
Red light
Model
NPN output
E3T-ST31 2M
E3T-ST32 2M
E3T-ST11 2M
E3T-ST12 2M
E3T-ST21 2M
E3T-ST22 2M
E3T-FT11 2M
E3T-FT12 2M
E3T-FT21 2M
E3T-FT22 2M
E3T-SR41 2M
*3
E3T-SR42 2M
*3
E3T-FD11 2M
E3T-FD12 2M
E3T-SL11 2M
E3T-SL12 2M
E3T-SL21 2M
E3T-SL22 2M
E3T-FL11 2M
E3T-FL12 2M
E3T-FL21 2M
E3T-FL22 2M
Infrared light
A set of mounting screws is included with the Sensor.
Sensing distance
Operation mode
Light-ON
Dark-ON
Light-ON
Dark-ON
Light-ON
Dark-ON
Light-ON
Dark-ON
Light-ON
Dark-ON
Light-ON
PNP output
E3T-ST33 2M
E3T-ST34 2M
E3T-ST13 2M
E3T-ST14 2M
E3T-ST23 2M
E3T-ST24 2M
E3T-FT13 2M
E3T-FT14 2M
E3T-FT23 2M
E3T-FT24 2M
E3T-SR43 2M
*3
E3T-SR44 2M
*3
E3T-FD13 2M
E3T-FD14 2M
E3T-SL13 2M
E3T-SL14 2M
E3T-SL23 2M
E3T-SL24 2M
E3T-FL13 2M
E3T-FL14 2M
E3T-FL23 2M
E3T-FL24 2M
Appearance
2m
(Sensitivity Adjustment
Unit can be used.)
1m
Through-beam
(
Emitter
+
Receiver
)
*2
(Sensitivity Adjustment
Unit can be used.)
300 mm
500 mm
300 mm
Using the E39-R4 Reflector
provided 200 mm [30 mm]
*1
Retro-
reflective
Using the E39-R37-CA
100 mm [10 mm]
*1
Dark-ON
Light-ON
Diffuse-
reflective
5 to 30 mm
Dark-ON
Convergent-
reflective
5 to 15 mm
5 to 30 mm
1 to 15 mm
1 to 30 mm
BGS-
reflective
Light-ON
Dark-ON
Light-ON
Dark-ON
Light-ON
Dark-ON
Light-ON
Dark-ON
M3-mounting Sensors
Sensing method
Through-beam
Appearance
A set of mounting screws is not included with the Sensor. Order a Screw Set separately if required.
Sensing distance
Operation mode
Light-ON
Dark-ON
Light-ON
Dark-ON
Light-ON
Model
NPN output
E3T-ST11M 2M
E3T-ST12M 2M
E3T-ST21M 2M
E3T-ST22M 2M
E3T-FD11M 2M
E3T-FD12M 2M
E3T-SL11M 2M
E3T-SL12M 2M
E3T-SL21M 2M
E3T-SL22M 2M
PNP output
E3T-ST13M 2M
E3T-ST14M 2M
E3T-ST23M 2M
E3T-ST24M 2M
E3T-FD13M 2M
E3T-FD14M 2M
E3T-SL13M 2M
E3T-SL14M 2M
E3T-SL23M 2M
E3T-SL24M 2M
1m
300 mm
5 to 30 mm
(
Emitter
+
Receiver
Diffuse-
reflective
)
*2
Dark-ON
Convergent-
reflective
5 to 15 mm
5 to 30 mm
Light-ON
Dark-ON
Light-ON
Dark-ON
Small Cylindrical Sensors
Sensing method
Appearance
A set of mounting nuts is included with the Sensor.
Sensing distance
Operation mode
Light-ON
---
E3T-CT12 2M
---
E3T-CT22S 2M
E3T-CD11 2M
---
Model
NPN output
---
E3T-CT14 2M
---
E3T-CT24S 2M
E3T-CD13 2M
---
PNP output
Through-beam
1m
Dark-ON
Light-ON
(
Emitter
+
Receiver
)
500 mm
Dark-ON
Light-ON
Diffuse-
reflective
(with adjuster)
3 to 50 mm
Dark-ON
*1.
Values in parentheses indicate the minimum required distance between the Sensor and Reflector.
*2.
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
Orders for individual Emitters and Receivers are accepted. (Modifications are required for some models.)
*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
2
E3T
Variety of Connection Specifications
The models with the connection specifications marked with a black circle in the table are available. These are applicable only to M2-mounting
Sensors. The model number indication is a combination of the basic model and the connection specification.
Example:
E3T-ST11-M1TJ 0.3M
Basic model number Connection specification
NPN Output
Model
Model num-
ber example
Operation
mode
Light-ON
2m
Dark-ON
Through-
beam
(side-view)
Light-ON
1m
Dark-ON
Light-ON
300 mm
Dark-ON
Light-ON
Through-
beam
(flat)
500 mm
Dark-ON
Light-ON
300 mm
Dark-ON
Retro-
reflective
Diffuse-
reflective
200 mm
(100 mm)
*
5 to 30 mm
Dark-ON
Light-ON
5 to 15 mm
Convergent-
reflective
5 to 30 mm
Dark-ON
Light-ON
1 to 15 mm
BGS-
reflective
1 to 30 mm
Dark-ON
E3T-FL22
Dark-ON
Light-ON
E3T-FL12
E3T-FL21
E3T-SL22
E3T-FL11
Dark-ON
Light-ON
E3T-SL12
E3T-SL21
E3T-FD12
E3T-SL11
Light-ON
Dark-ON
Light-ON
E3T-FT22
E3T-SR41
E3T-SR42
E3T-FD11
E3T-FT12
E3T-FT21
E3T-ST22
E3T-FT11
E3T-ST12
E3T-ST21
E3T-ST32
E3T-ST11
Connection
specification
Basic model
number
E3T-ST31
E3T-ST11-M1TJ 0.3M
M12 pre-wired Smartclick Con-
nector (cable length: 0.3 m)
-M1TJ 0.3M
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
E3T-ST11 5M
Pre-wired
(cable length: 5 m)
5M
●
●
●
●
●
●
●
●
---
---
●
●
●
●
●
●
●
●
---
---
---
---
E3T-ST11R 2M
Pre-wired robot
(cable length: 2 m)
R 2M
●
●
●
●
---
---
●
●
---
---
●
●
●
●
●
●
●
●
●
●
●
●
E3T-ST11-ECON 0.3M
e-CON pre-wired connector
(cable length: 0.3 m)
-ECON 0.3M
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
---
---
●
---
E3T-ST11-ECON 2M
e-CON pre-wired connector
(cable length: 2 m)
-ECON 2M
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
---
---
---
---
Sensing
method
Sensing
distance
*The
sensing distance depends on the Reflector that is used. The sensing distance is 200 mm if an E39-R4 is used and 100 mm if an E39-R37-CA is used.
PNP Output
Model
Model num-
ber example
Connection
specification
Basic model
number
Light-ON
2m
Dark-ON
Through-
beam
(side-view)
Light-ON
1m
Dark-ON
Light-ON
300 mm
Dark-ON
Light-ON
Through-
beam
(flat)
500 mm
Dark-ON
Light-ON
300 mm
Dark-ON
Retro-
reflective
Diffuse-
reflective
200 mm
(100 mm)
*
5 to 30 mm
Dark-ON
Light-ON
5 to 15 mm
Convergent-
reflective
5 to 30 mm
Dark-ON
Light-ON
1 to 15 mm
BGS-
reflective
1 to 30 mm
Dark-ON
E3T-FL24
Dark-ON
Light-ON
E3T-FL14
E3T-FL23
E3T-SL24
E3T-FL13
Dark-ON
Light-ON
E3T-SL14
E3T-SL23
E3T-FD14
E3T-SL13
Light-ON
Dark-ON
Light-ON
E3T-FT24
E3T-SR43
E3T-SR44
E3T-FD13
E3T-FT14
E3T-FT23
E3T-ST24
E3T-FT13
E3T-ST14
E3T-ST23
E3T-ST34
E3T-ST13
E3T-ST33
E3T-ST13-M1TJ 0.3M
M12 pre-wired Smartclick
Connector (cable length:
0.3 m)
-M1TJ 0.3M
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
E3T-ST13 5M
Pre-wired
(cable length: 5 m)
5M
●
●
●
●
---
---
●
●
---
●
●
●
●
●
●
●
●
●
---
---
---
---
E3T-ST13R 2M
Pre-wired robot
(cable length: 2 m)
R 2M
●
●
●
●
---
---
●
●
---
---
●
●
●
●
●
●
●
●
●
●
●
●
Sensing
method
Sensing
distance
Operation
mode
*The
sensing distance depends on the Reflector that is used. The sensing distance is 200 mm if an E39-R4 is used and 100 mm if an E39-R37-CA is used.
3
E3T
Accessories (Order Separately)
Accessories for M2-mounting Sensors
These accessories are not included with the Sensor. Order them separately if required.
Name
Mutual Interference Prevention Filter for
Through-beam Side-view Sensors
*1
Applicable
Sensor
E3T-ST3@
E39-E14
E3T-ST1@
E3T-ST3@
Model
Quantity
4
(Two each for Emitter
and Receiver)
Dimensions
page
Remarks
Sensing distance 1 m
Sensing distance 0.5 m
Sensing distance 200 mm,
Minimum detectable object (typical)
0.5-mm dia.
Sensing distance 100 mm,
Minimum detectable object (typical)
0.5-mm dia.
Sensing distance 30 mm,
Minimum detectable object (typical)
0.5-mm dia.
Sensing distance 600 mm,
Minimum detectable object (typical)
1-mm dia.
2
(One each for Emitter
and Receiver; common
with Slit widths of 1 dia.
and 0.5 dia.)
Sensing distance 300 mm,
Minimum detectable object (typical)
1-mm dia.
19
Sensing distance 100 mm,
Minimum detectable object (typical)
1-mm dia.
Sensing distance 50 mm,
Minimum detectable object (typical)
0.5-mm dia.
Sensing distance 30 mm,
Minimum detectable object (typical)
0.5-mm dia.
Sensing distance 100 mm,
Minimum detectable object (typical)
1-mm dia.
Sensing distance 50 mm,
Minimum detectable object (typical)
1-mm dia.
Sensing distance (typical) 1,200 to
1,800 mm
Sensing distance (typical) 300 to
800 mm
20
1
21
---
Material: Iron (Same type as provided
with the Sensor.)
Contents: Phillips screws (M2×14),
Hexagonal nuts, Spring washers, Flat
washers
Material: Iron (Same type as provided
with the Sensor.)
Contents: Phillips screws (M2×8),
Hexagonal nuts, Spring washers, Flat
washers
Material: SUS304
Contents: Bolt with hexagonal hole
(M2×6)
Material: SUS304
Contents: Bolt with hexagonal hole
(M2×12), Hexagonal nuts, Spring
washers, Flat washers
0.5 dia.
E3T-ST1@
E3T-ST2@
Slit for Through-beam
Side-view Sensors
E3T-ST3@
E39-S63
1 dia.
E3T-ST1@
E3T-ST2@
E3T-FT1@
0.5 dia.
E3T-FT2@
Slit for Through-beam Flat
Sensors
E3T-FT1@
1 dia.
E3T-FT2@
E3T-ST3@
E39-E10
E3T-ST1@
E39-L116
Mounting Brackets for Side-view Sensors
E3T-S@@@
*2
E39-L117
E39-L118
Mounting Brackets for Flat Sensors
*2
E3T-F@@@
E39-L119
E39-L120
1
E39-S64
Sensitivity Adjustment Unit for Through-
beam Side-view Sensors
Nut plate provided
Screw Set for Side-view Sensors
*3*4
E3T-S@@@
E39-L164
2 for each
Screw Set for Flat Sensors
*3*4
E3T-F@@@
E39-L165
---
SUS Screw Set for Flat Sensors
*3
E3T-F@@@
E39-L172
2
SUS Screw Set for Side-view Sensors
*3
E3T-S@@@
E39-L173
2 for each
*1.An
arrow indicates the polarization direction. Mutual interference can be prevented by using different polarization directions for adjacent Emitters/Receivers.
*2.
When using Through-beam Sensors (E3T-ST@@, E3T-FT@@), order one bracket for the Emitter and one for the Receiver.
*3.
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 loose the screws. Do not use this Screw Set to mount the Mounting
Bracket to the equipment.
*4.
This is included with the Sensor.
4
E3T
Accessories for M3-mounting Sensors
These accessories are not included with the Sensor. Order them separately if required.
Name
0.5
dia.
Slits for Through-beam
Side-view Sensors
1 dia.
E3T-ST2@M
Mounting Bracket for Side-view
Sensors
*1
Mounting Bracket for Flat Sensors
Back-mounting Spacer for Flat Sen-
sors
E3T-FD@@M
E39-L168
E39-L170
2
---
SUS Screw Set for Side-view Sen-
E3T-S@@@M
sors
*1*2
E39-L171
2 for each
Material: SUS304
Contents: Bolt with hexagonal hole (M3×15), Hex-
agonal nuts, Spring washers, Flat washers
E3T-S@@@M
E39-L166
E39-L167
1
22
Applicable
Sensor
E3T-ST1@M
E39-S76A
E3T-ST2@M
E3T-ST1@M
E39-S76B
2
(One each for
Emitter and
Receiver)
19
Model
Quantity
Dimensions
page
Remarks
Sensing distance 100 mm,
Minimum detectable object (typical) 0.5-mm dia.
Sensing distance 30 mm,
Minimum detectable object (typical) 0.5-mm dia.
Sensing distance 300 mm,
Minimum detectable object (typical) 1-mm dia.
Sensing distance 100 mm,
Minimum detectable object (typical) 1-mm dia.
Nut plate provided
---
Use this Spacer when mounting a Flat Sensor
(E3T-FD@@M) from the back.
Material: SUS304
Contents: Bolt with hexagonal hole (M3×6)
SUS Screw Set for Flat Sensors
*2
E3T-FD@@M
*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 loose the screws. Do not use this Screw Set to mount the Mounting
Bracket to the equipment.
Accessories for Small Cylindrical Sensors
Name
SUS Nut Set for Through-beam
Sensors
*1
Applicable
Sensor
E3T-CT@@
E3T-CT@@S
E39-M5
Model
Quantity
4 (Hexagonal
nuts),
2 (Toothed
washers)
2 (Hexagonal
nuts),
1(Toothed
washers)
1
---
Dimensions
Page
Remarks
Material: SUS303
(Same type as provided with the Sensor.)
SUS Nut Set for Diffuse-reflective
Sensors
Adjustment Driver for Diffuse-reflec-
tive Sensors
E39-M6
E3T-CD@@
E39-G17
This Driver is used to turn the sensitivity adjuster.
Provided with E3T-CD@@
*1.This
Nut Set is for the Emitter/Receiver. This is the Nut Set for mounting the Sensor. Order this Set if you loose the screws.
Accessories for All Sensors
Name
Applicable
Sensor
E3T-SR4@
Small Reflectors
(for Retro-reflective Sensors)
E3T-SR4@-S
E39-R37-CA
*2
Model
E39-R4
Quantity
Dimensions
Page
Remarks
Sensing distance 200 mm [30 mm]
*1
Minimum detectable object 2-mm dia.
Provided with the E3T-SR4@
Sensing distance 100 mm [10 mm]
*1
Minimum detectable object 2-mm dia.
Provided with the E3T-SR4@-S
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.
18
1
E39-RS1-CA
*2
Tape Reflectors
(for Retro-reflective Sensors)
E3T-SR4@-C
E39-RS2-CA
*2
E39-RS3-CA
*2
19
*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.
Sensor I/O Connectors
(Models with Pre-wired Connectors: A Connector is not provided with the Sensor. Be sure to order a Connector separately.)
Size
M12
(For -M1TJ models)
Cable
Appearance
Cable type
2m
5m
Model
XS5F-D421-D80-A
XS5F-D421-G80-A
E39-ECON2M
4-wire
E39-ECON5M
E39-ECONW@M
Replace
@
with the cable length in
0.1-m increments.
Straight
Connector on one end
Standard
cable
e-CON
432 1
2m
5m
0.5 to 1 m
1.1 to 1.5 m
1.6 to 2 m
12 3 4
Connector on both ends
432 1
Note: When using Through-beam Sensors, order one connector for the Emitter and one for the Receiver.
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