R
Subminiature Photoelectric Sensor E3T
Omron’s Next Generation of
Sub-miniature Photoelectric Sensors
HUtilizes Omron’s “Hyper LED” technology
to achieve the industry’s smallest visible
red beam
HSelf-contained sensor ideal for
space-restricted applications
H“Pin-point” beam for detecting extremely
small objects
HOffered in both flat and rectangular
body styles
HRetroreflective model employs Omron’s
Free-Angle Optics technology (FAO) to
detect objects as small as 2 mm dia.
HConvergent-beam model spot diameter
is 0.15 mm
HThrough-beam model is capable of
sensingdistancesof1meterwitha2mm
target diameter
HCE conformance
HRobotic cable versions available
(See Note 2, below.)
Ordering Information
JPHOTOELECTRIC SENSORS
Sensor type Sensing method
y
p
Through-beam Retroreflective Diffuse reflective Convergent-beam
Appearance Side-view Flat Side-view Flat Side-view
p
p
Sensing distance 1m 500 mm 10 to 200 mm 5to30mm 5to15mm 5to30mm
Part number Light-ON NPN E3T-ST11 E3T-FT11 E3T-SR11 E3T-FD11N E3T-SL11 E3T-SL21
g
PNP E3T-ST13 E3T-FT13 E3T-SR13 E3T-FD13N E3T-SL13 E3T-SL23
Dark-ON NPN E3T-ST12 E3T-FT12 E3T-SR12 E3T-FD12N E3T-SL12 E3T-SL22
PNP E3T-ST14 E3T-FT14 E3T-SR14 E3T-FD14N E3T-SL14 E3T-SL24
Note: 1. All through-beam models are packaged and sold as pairs (one transmitter and one receiver).
2. E3T sensors are available with robotic cable. To order, add the letter “R” to the end of the part number. Example: E3T-ST11R
3. 5-M cable models are available. To order, add the desigination 5M to the end of the part number. Example: E3T-T11 5M
E3T E3T
2
JACCESSORIES (ORDER SEPARATELY)
Slits (Apertures)
Slits for sensor models Slit width Sensing distance Minimum sensing object (typical) Comments Part number
E3T-ST1j0.5 dia. 50 mm 0.5 mm wide One each for Emitter
d
R
i
E39-S63
3
S
j
1dia. 100 mm 1mmwide and Receiver
Slits for sensor models Slit width Sensing distance Minimum sensing object (typical) Comments Part number
E3T-FT1j0.5 dia. 50 mm 0.5 mm wide One each for Emitter
d
R
i
E39-S64
3
j
1dia. 100 mm 1mmwide and Receiver
Reflectors
Item Sensing distance Minimum sensing object (typical) Part number
Compact retroreflective model 10 to 200 mm 2mmwide E39-R4
(See Note.)
10 to 100 mm E39-R37
Note: E39-R4 reflector included with the E3T-SR1j(can also be ordered separately).
Adjustable Aperture
For sensor models Appearance Part number
E3T-ST1jE39-E10
Mounting Brackets
For sensor models Appearance Comments Part number
E3T-SjTwo mounting brackets are required for through-beam
models.
E39-L116
E39-L117
E39-L118
E3T-FjE39-L119
E39-L120
E3T E3T
3
Specifications
JRATINGS/CHARACTERISTICS
Sensing method Through-beam Retroreflective Convergent beam Diffuse reflective
Shape Side-view Flat Side-view Flat
Output type NPN PNP NPN PNP NPN PNP NPN PNP NPN PNP NPN PNP
Part number Light-ON -ST11 -ST13 -FT11 -FT13 -SR11 -SR13 -SL11 -SL13 -SL21 -SL23 -FD11 -FD13
Dark-ON -ST12 -ST14 -FT12 -FT14 -SR12 -SR14 -SL12 -SL14 -SL22 -SL24 -FD12 -FD14
Sensing distance 1m
(adjustable
aperture is
available)
500 mm 10 to 200 mm
(with the E39-R4)
5to15mm
(50 x 50 mm
Kodak white
card)
5to30mm
(50 x 50 mm
Kodak white
card)
5to30mm
(50 x 50 mm
Kodak white card)
Standard sensing target 2 mm dia. min. 10 mm dia. min. ---
Min. sensing target
(typical)
2 mm dia. min. 2mmdia.
(sensing distance
at 100 mm)
0.15 mm dia. (sensing distance at 10 mm)
Hysteresis --- 2mmmax. 6mmmax. 6mmmax.
Optical
l
Emitter 3°to 10°3°to 13°2°to 5°---
p
angle Receiver 3°to 70°3°to 70°---
Light source
(wave length)
Red LED (“Pin-point” LED) (λ=670 nm)
Power supply voltage 12 to 24 VDC ±10%, ripple (p-p) 10% max. 24 VDC
±10%
C
u
r
r
e
n
t
c
o
n
s
u
m
p
t
i
o
n
1
2
m
A
m
a
x
e
m
i
t
t
e
r
/
r
e
c
e
i
v
e
r
2
0
m
A
m
a
x
C
urrent consumpt
i
on
1
2
m
A
max. em
i
tter
/
rece
i
ver
2
0
m
A
max.
Output Open collector, load current: 50 mA max. at 24 VDC, residual voltage: 1 V max.,
operation mode: Light-ON or Dark-ON (separate models)
Circuit protection
(See Precautions
Section.)
Protection from reversed and
output short-circuit
Protection from reversed polarity, output short-circuit, and mutual
interference
Response time 1 ms max. each for on and off
Ambient
light
i
i
t
Incandes-
cent lamp
5,000 ℓxmax.
g
immunity Sunlight 10,000 ℓxmax.
Ambient Operating -- 2 5 °Cto55°C(--13°F to 131°F)
temperature Storage -- 4 0 °Cto70°C(--40°F to 158°F) with no icing or condensation
Ambient
h
i
d
i
Operating 35% to 85% RH
humidity Storage 35% to 95% RH (with no condensation)
Insulation resistance 20 MΩmin. (at 500 VDC)
Dielectric strength 1,000 VAC, 50/60 Hz for 1 min
Vibration resistance 10 to 2,000 Hz, 1.5-mm double amplitude or 300 m/s2(approx. 30G) for 0.5 hrs each in X, Y, and Z axis
Shock resistance 1,000 m/s2(approx. 100G) 3 times each in X, Y, and Z axis
Enclosure rating IEC60529: IP67
Connection method Pre-leaded (standard length: 2 m), optional 5-M cable, optional robotic cable
Weight (with packaging) Approx. 40 g Approx. 20 g
Materials Case PBT
Lens and
cover
Polycarbonate
Accessories included Two each of M2 mounting screws, spring washers, and flat washers, and reflector (E39-R4: retroreflective
model only)
E3T E3T
4
En
g
ineerin
g
Data
JEXCESS GAIN VS. SET DISTANCE (TYPICAL)
E3T-ST1j(Through-beam) E3T-SR1jwith E39-R4 (Retroreflective)
E3T-SL1j(Convergent Beam)
Set distance (mm) Set distance (mm)
Set distance (mm)
White paper
Black paper
Excess gain ratio
Excess gain ratio
E3T-FT1j(Through-beam)
E3T-SL2j(Convergent Beam)
E3T-FD1j(Diffuse Reflective)
White paper
Black paper
White paper
Black paper
Excess gain ratio
Set distance (mm)
Excess gain ratio
Excess gain ratio
Set distance (mm)Set distance (mm)
Excess gain ratio
2000160012008004000
Operation
level
Operation
level Operation
level
Operation
level
Operation
level
Operation
level
E3T E3T
5
JPARALLEL OPERATING RANGE (TYPICAL)
E3T-ST1jwith Slit (Aperture)
(Through-Beam)
Distance X (mm)
1-dia. Slit
Distance Y (mm)
Distance Y (mm)
0.5-dia. Slit
Distance X (mm)
0.5-dia.
Slit
1-dia. Slit
Without Slit
Distance X (mm)
400 800 1,200 1,600 2,000
E3T-SR1jwith E39-R4
(Retroreflective)
Distance Y (mm)
E3T-ST1jwith Slit (Enlarged graph)
(Through-Beam)
E3T-FT1jwith Slit (Through-Beam) E3T-FT1jwith Slit (Enlarged graph)
(Through-Beam)
1-dia. Slit
0.5-dia. Slit
Distance X (mm)
Distance X (mm)
1-dia. Slit
0.5-dia. Slit
Without Slit
400 800600200 1,000
Distance Y (mm)
Distance Y (mm)
JANGLE CHARACTERISTICS (TYPICAL)
E3T-SL1j
(Up and Down)
E3T-SL1j
(Left and Right)
Angle θ(°)Angle θ(°)
Sensing target:
100 x 100 mm white paper Sensing target:
100 x 100 mm white paper
Sensing distance change rate (%)
Sensing distance change rate (%)
E3T E3T
6
JCLOSE-DISTANCE SENSING CAPABILITY (TYPICAL)
E3T-SL1j,E3T-SL2j,E3T-FD1j
Sensing distance (mm)
E3T-SL1jE3T-SL2jE3T-FD1j
jWhite paper
JBlack paper
JSENSING TARGET SIZE VS. SENSING DISTANCE (TYPICAL)
Sensing distance (mm)
E3T-FD1j,E3T-SL2j
E3T-SL2j
E3T-FD1j
Sensing distance (mm)
E3T-SL1j
Min. sensing target dia. (mm)
Min. sensing target dia. (mm)
Sensing target:
Pin-gauge, stainless steel
JOPERATION RANGE (TYPICAL)
E3T-SL1j(Convergent Beam)
Sensing distance X (mm)
Operating position Y (mm)
E3T-SL2j(Convergent Beam)E3T-FD1j(Diffuse Reflective)
Sensing
distance
X (mm)
Sensing
distance
X (mm)
Operating position Y (mm)
Operating position Y (mm)
Sensing target:
50 x 50 mm white paper
Sensing target:
50 x 50 mm white paper
Sensing target:
50 x 50 mm white paper
E3T E3T
7
JSENSING DISTANCE CHARACTERISTICS OF ADJUSTABLE APERTURE
(WHEN COMPLETING OPTICAL AXIS ADJUSTMENT)
E3T-SL1jwith E39-E10
Sensitivity adjustment level
Sensing distance (m)
O
p
eration
JOUTPUT CIRCUITS
NPN models E3T-jjj1E3T-jjj2
Operation mode Light-ON Dark-ON
Output circuit
Operation
indicator
(Orange)
Stability
indicator
(Green)
Photo-
electric
Sensor
main
circuit
Brown
Black
Blue
12 to 24 VDC
50 mA
max. Load
0V
PNP models E3T-jjj3E3T-jjj4
Operation mode Light-ON Dark-ON
Output circuit
Operation
indicator
(Orange)
Stability
indicator
(Green)
Photo-
electric
Sensor
main
circuit
Brown
Black
Blue
12 to 24 VDC
50 mA
max.
Receiver (through-beam models),
Retroreflective, diffuse reflective, and convergent beam models
Load
Internal circuit Emitter (through-beam models)
Brown
Blue
12 to 24 VDC
Photo-
electric
Sensor
main
circuit
E3T E3T
8
JTIMING CHART
Diffuse and convergent beam Light-ON Dark-ON
g
Operation
indicator
(orange)
Target present
Target not present
ON
OFF
Output
transistor
ON
OFF
Load Energized
De-energized
Operation
indicator
(orange)
Target present
Target not present
ON
OFF
Output
transistor
ON
OFF
Load
Energized
De-energized
Retroreflective/through-beam Light-ON Dark-ON
/
g
Operation
indicator
(orange)
Target present
Target not present
ON
OFF
Output
transistor
ON
OFF
Load Energized
De-energized
Operation
indicator
(orange)
Target present
Target not present
ON
OFF
Output
transistor
ON
OFF
Load
Energized
De-energized
Dimensions
Unit: mm (inch)
JSIDE-VIEW SENSORS
Through-Beam Models
E3T-ST11
E3T-ST12
E3T-ST13
E3T-ST14
Lens: 1.7 dia.
Emitter
7(0.28)
Lens: 2 dia.
Operation
indicator Stability
indicator
Receiver
7 (0.28)
Mounting Holes
Two, M2
(0.59)
Emitter Receiver
Two, 2.2 dia.
9.5
(0.37)
14.6
(0.57)
18.5
(0.73)
Polyvinyl chloride-covered cable,
2.4-mm dia. (7/0.127 dia.),
Robotic cable (20/0, 0.08-mm dia.),
2 conductors, emitter
3 conductors, receivers
Standard length: 2 m
E3T E3T
9
Retroreflective Models
E3T-SR11
E3T-SR12
E3T-SR13
E3T-SR14
Two, 2.2 dia.
Polyvinyl chloride-covered cable,
2.4-mm dia. (7/0.127 dia.),
Robotic cable (20/0, 0.08-mm dia.),
3 conductor Standard length: 3 m
11
(0.43)
20.6
(0.81)
24.5
(0.96)
Mounting Holes
Two, M2
(0.59)
Len: 2 dia.
Emitter and
Receiver
Operation
indicator
Stability
indicator
7 (0.28)
Convergent-Beam Models
E3T-SL11 E3T-SL21
E3T-SL12 E3T-SL22
E3T-SL13 E3T-SL23
E3T-SL14 E3T-SL24
Lens 3.7 ×2
Receiver
Two, 2.2 dia.
Mounting Holes
Two, M2
Operation
indicator
Stability
indicator
Lens 4.4 ×2
Emitter
7 (0.28)
20.6
(0.81)
24.5
(0.96)
(0.59)
11
(0.43)
Polyvinyl chloride-covered cable
2.4-mm dia. (7/0.127 dia.),
Robotic cable (20/0, 0.08-mm dia.),
3 conductor
Standard length: 3 m
E3T E3T
10
Unit: mm (inch)
JFLAT THIN SENSORS
Through-Beam Emitter and Receiver Models
E3T-FT11
E3T-FT12
E3T-FT13
E3T-FT14
Two, M2
Two, 2.2 dia.
Optical axis
Two, R2
Mounting Holes
Operation indicator
(See Note below)
Stability indicator
(See Note.)
Lens 1.3 dia.
Polyvinyl chloride-covered cable
2.4-mm dia. (7/0.127 dia.),
Robotic cable (20/0, 0.08-mm dia.)
3 conductor
Standard length: 2 m Note: For E3T-FT11 and E3T-FT12 Receivers only.
19
(0.75)
15.8
(0.62)
12
(0.47)
0.2
(0.008)
3.5
(0.13)
(0.31)
Diffuse Reflective Models
E3T-FD11-N
E3T-FD12-N
E3T-FD13-N
E3T-FD14-N
Two, M2
Emitter
Optical axis
Two, 2.2 dia.
0.2
Lens 1.5 dia.
Receiver
Mounting Holes
Operation
indicator Stability
indicator
Lens 3.1 dia.
Polyvinyl chloride-covered cable,
2.4-mm dia. (7/0.127 dia.),
Robotic cable (20/0, 0.08-mm dia.)
3 conductor
Standard length: 2 m
Two, R2
24
(0.94)
3.5
(0.14)
20.8
(0.82)
(0.31)
12
(0.47)
1.75
JREFLECTORS
Retroreflector
E39-R4(ProvidedwiththeE3T-SR1j)
Two, 2.2 dia.
23
(0.91)
4.9
(0.19)
13.7
(0.54)
E3T E3T
11
E39-R37 Reflector
301 Stainless steel
Note: A reflector and a stainless steel mounting
plate are supplied together as a set.
Reflector
0.6 (with adhesive)
Stainless steel
mounting plate 0.5
Two 3.1 dia
13.7
(0.54)
23
(0.91)
JSLITS/APERTURES (ORDER SEPARATELY)
E39-S63(UsewithE3T-ST1j)
Two, 2.2 dia.
Material:
0.2-mm-thick stainless steel
(301 Stainless)
ShownwithSensor
Notch
Note: Align the notch direction of
the slit when installing on
the Emitter and Receiver.
1.0±0.05 dia.
0.5±0.05 dia.
1dia.
0.5 dia.
7.4
(0.29)
7.4
(0.29)
9.7
(0.38) 12.3
(0.48)
4.1
(0.16)
12.6
(0.50)
E39-S64 (Use with E3T-FT1j)
Adjustable Aperture
2dia.
With the Adjustable Aperture
Unit in Place
Optical axis
E39-E10(UsewithE3T-ST1j)
7.4
(0.29)
15.1
(0.59)
18.7
(0.74)
Use of E39-E10 Adjustable Aperture
(Example Dark-ON: E3T-ST12/ST14)
(At Min.) (At Center) (At Max.)
Indicator
Adjuster
For Dark-ON:
1. Mount the unit on the receiver.
2. Set the adjuster of the Unit to Max (factory setting is
at Max).
3. Adjust the optical axis (align) and tighten mounting
hardware.
4. Place a target between emitter and receiver and
gradually turn the adjuster counterclockwise toward
the Min side. Stop turning the adjuster when the op-
eration indicator and stability indicator (green) turn
ON.
5. Remove the target and confirm that the operation
indicator is OFF and the stability indicator (green) is
ON.
Note: For Light-ON, adjustment is similar, except that
indicators would operate in opposite manner as
with Dark-ON.
E3T E3T
12
R1.5 max.
Material: 1.2-mm-thick
stainless steel (SS 304)
E39-L116 (Use with E3T-ST1j)
Two, R1.7
Two, R2
Two, R2
Two, R1.1
Two, R1.2
Four, R2 Three, M2 Two, M2 ×12
17.8
(0.70)
31.2
(1.23)
9.7
(0.38)
10
(0.39)
10.3
(0.41)
17.8
(0.70)
20.5
(0.81)
7
(0.28)
31
(1.22)
24.5
(0.96)
31.2
(1.23)
Unit: mm (inch)
JMOUNTING BRACKETS
E39-L116 (Use with E3T-Sjjj) Order Separately
E3T E3T
13
Order brackets separately.
E39-L117 (Use with E3T-Sjjj)
R1 max.
Material: 1.2-mm-thick
stainless steel (SS 304)
E39-L117 (Shown with E3T-ST1j)
Two, R1.7 Two, R2 Two, R2
Two, R1.1
Four, R2 Three, M2
Two, M2 ×12
Two, R1.7
20.5
(0.80) 23
(0.91)
11.2
(0.44)
11.2
(0.44)
3.4
(0.13)
23
(0.91)
4.5
(0.18)
10.2
(0.40)
18
(0.71)
11.2
(0.44)
10.3
(0.41)
11.2
(0.44)
E3T E3T
14
Unit: mm (inch)
Order brackets separately.
E39-L118 (Use with E3T-Sjjj)
7.7
(0.30)
Material: 1.2-mm-thick
stainless steel (SS 304)
E39-L118 (Shown with E3T-ST1j)
Two, R1.7
Four, R2
Two, R1.1
Four, R2 Three, M2 Two, M2 ×12
11.5
(0.45)
22.7 (0.89)
11.5
(0.45)
15
(0.59) 23
(0.91)
5
(0.20)
20.5
(0.81) 15
(0.59)
13.2
(0.52)
23
(0.91)
16.3
(0.64)
E3T E3T
15
Mounting Brackets for E3T-FT1j/E3T-FD1j
8
(0.31)
8
(0.31)
E39-L119
E39-L120
Two, M2 ×4
E39-L119 Shown with E3T-Fj1j
Four, M2 tapping holes
Two, M2 ×4
E39-L120
(ShownwithE3T-F
j1j)
Four, M2 tapping holes
10.5
(0.41)
12
(0.47)
16
(0.63)
9
(0.35) 7
(0.28)
10.6
(0.42)
22.5 (0.89)
16
(0.63) 12
(0.47)
2.4
(0.09)
2.4
(0.09)
3.2 13.5
(0.53)
8
(0.31)
9
(0.35)
E3T E3T
Precautions
Caution
Avoid damage to the E3T: NEVER apply AC power to the E3T.
JAVOID DAMAGE TO THE E3T
•Do not exceed the rated voltage on the E3T.
•Do not short-circuit the load connected to the E3T.
•When supplying power to the E3T, make sure that the
polarity of the power is correct.
JOPERATING ENVIRONMENT
To avoid malfunction, DO NOT install the E3T in the following
environments:
•Locations where the E3T is exposed to intense sunlight.
•Locations with high humidity and where condensation may
result.
•Locations with corrosive gas.
•Locations with vibration or shock affecting the E3T.
JHIGH-TENSION LINES
To avoid Sensor damage or malfunctioning due to induction
noise, do not place the power supply lines of the Photoelectric
Sensor within the same conduit as power lines or high-tension
lines.
JCABLE
The cable can be extended up to 100 m provided that cable
thickness does not exceed the 0.3 mm2maximum.
JPOWER SUPPLIES
If a switching regulator is connected to the E3T, you must ground
the FG (frame ground) and G (ground) terminals, or the switching
noise of the switching regulator may cause the E3T to
malfunction.
JWATER RESISTANCE
•Do not use the E3T underwater, outdoors, or in the rain.
•Use M2 screws and washers to mount the E3T. When
mounting the E3T, NEVER strike the E3T with a hammer, or
the E3T will lose its watertight properties.
JLOAD 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.
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 2.4 times larger
than the rated load current.
When using an inductance load, be sure that the inrush current
will not exceed 2.4 times larger than the rated current.
JCLEANING
DO NOT apply paint thinner when cleaning the E3T. Paint thinner
will damage the casing of the E3T.
JINDICATORS
The following graphs indicate the status of each operation level.
Stable
operation
range
Unstable
operation
range
Stable
operation
range
Operation
level x 1.2
Operation
level
Operation
level x 0.8
Stability
indicator
(green)
Operation indicator (orange)
ON
OFF
ON
ON
OFF
OFF
ON
Note: When the E3T’s operation level is set to the stable
operation range, the E3T will be in its most reliable
operation without being influenced by temperature,
voltage fluctuation, dust, or mounting changes.
Light
Be sure to use the E3T within the stable operating range.
E3T-jjj1
E3T-jjj3
E3T-jjj2
E3T-jjj4
JTURNING ON POWER SUPPLY
•The E3T will be ready for sensing 100 ms after the power is
turned ON.
•If the E3T is connected to a power source different from one
for loads, be sure to turn ON the power supply to the E3T
first.
Cat. No. E262-E3-3 1/02 Specifications subject to change without notice. Printed in U.S.A.
OMRON ELECTRONICS LLC
OneEastCommerceDrive
Schaumburg, IL 60173
NOTE: DIMENSIONS SHOWN ARE IN MILLIMETERS. To convert millimeters to inches divide by 25.4.
1-800-55-OMRON
OMRON CANADA, INC.
885 Milner Avenue
Scarborough, Ontario M1B 5V8
416-286-6465
R
OMRON ON--LINE
Global -- http://www.omron.com
USA -- http://www.omron.com/oei
Canada -- http://www.omron.com/oci
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