Compact Laser Photoelectric Sensor with Built-in Amplifier

E3Z-LT/LR/LL CSM_E3Z-LT_LR_LL_DS_E_6_4

Compact and Reliable

Laser Photoelectric Sensor
• Safety and reliability with laser class 1 (JIS and IEC).
• Product lineup includes models with distance setting without influence of
color.
• Maximum ambient operating temperature of 55°C and water-proof
construction in E3Z class.

Be sure to read Safety Precautions on

page 9.

Applications
Detect the sides of large tiles. Count bottles.

Greatly Enhanced Beam Visibility

Reliable Detection of
for Easier Optical Axis Adjustment of Sensors
Small Objects and
Narrow Gaps with the Small Spot

Detect chip components on tape. Detect protruding straws.

Long-distance Sensing A Low Black/White Error for

at 300 mm (White Paper) Applications with Mixed Colors

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 E3Z-LT/LR/LL
Ordering Information
Sensors (Refer to Dimensions on page 11.) Red light

Connection Response Model

Sensing method Appearance Sensing distance
method time NPN output PNP output
E3Z-LT61 2M E3Z-LT81 2M
Pre-wired
Emitter E3Z-T61-L 2M Emitter E3Z-T81-L 2M
(2 m)*3
Through-beam Receiver E3Z-T61-D 2M Receiver E3Z-T81-D 2M
(Emitter + Receiver) *4 60 m E3Z-LT66 E3Z-LT86
Connector
Emitter E3Z-T66-L Emitter E3Z-T86-L
(M8, 4 pins)
Receiver E3Z-T66-D Receiver E3Z-T86-D
*2
Pre-wired 15 m E3Z-LR61 2M E3Z-LR81 2M
(2 m)*3 (300 mm)
(Using E39-R1)
Retro-reflective with 1 ms 7m
MSR function (200 mm)
*1 (Using E39-R12)
Connector
7m E3Z-LR66 E3Z-LR86
(M8, 4 pins)
(200 mm)
(Using E39-R6)

Pre-wired 20 to 40 mm E3Z-LL61 2M E3Z-LL81 2M

(2 m)*3 (Min. distance set)
Connector 20 to 300 mm
E3Z-LL66 E3Z-LL86
Distance-settable (M8, 4 pins) (Max. distance set)
(BGS Models) Pre-wired 25 to 40 mm E3Z-LL63 2M E3Z-LL83 2M
(2 m)*3 (Min. distance set)
0.5 ms
Connector 25 to 300 mm
E3Z-LL68 E3Z-LL88
(M8, 4 pins) (Max. distance set)

*1. The Reflector is sold separately. Select the Reflector model most suited to the application.
*2. Values in parentheses indicate the minimum required distance between the Sensor and Reflector.
*3. Pre-wired Models with a 0.5-m cable are also available for these products. When ordering, specify the cable length by adding “0.5M” to the end of the model number
(e.g., E3Z-LT61 0.5M).
M12 Pre-wired Connector Models are also available. When ordering, add “-M1J” to the end of the model number (e.g., E3Z-LT61-M1J). The cable is 0.3 m long.
Also, the following connection forms can be manufactured. Ask your OMRON representative for details.
• Pre-wired Models with 1-m or 5-m cables
• Pre-wired Connector Models with M8 4-pin connectors or M8 3-pin connectors.
*4. Through-beam Sensors are normally sold in sets that include both the Emitter and Receiver.
Orders for individual Emitters and Receivers are accepted. (Modifications are required for some models. Ask your OMRON representative for details.)

Accessories
Slits (A Slit is not provided with a Through-beam Sensor. Order a Slit separately if required.) (Refer to Dimensions on page 14.)
Minimum detectable object
Slit width Sensing distance Model Contents
(typical)
One set
0.5 mm dia. 3m 0.1 mm dia. E39-S65A (contains Slits for both the
Emitter and Receiver)

Reflectors (A Reflector is required for Retro-reflective Sensors: A Reflector is not provided with the Sensor. Be sure to order a Reflector.)
(Refer to Dimensions on page 14.)

Name Sensing distance (typical) Model Remarks

15 m (300 mm) E39-R1 • Retro-reflective models are not provided with Reflectors.
• Separate the Sensor and the Reflector by at least the
Reflector 7 m (200 mm) E39-R12
distance given in parentheses.
7 m (200 mm) E39-R6 • The MSR function is enabled.

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 E3Z-LT/LR/LL

Mounting Brackets A Mounting Bracket is not provided with the Sensor. Order a Mounting Bracket separately if required.
(Refer to Dimensions on E39-L/F39-L/E39-S/E39-R.)

Appear- Appear-
Model Quantity Remarks Model Quantity Remarks
ance ance

E39-L153 1 E39-L98 1 Metal Protective Cover Bracket *

Mounting Brackets

E39-L104 1 E39-L150 1 set

(Sensor adjuster)

Easily mounted to the aluminum

E39-L43 1 Horizontal Mounting Bracket * frame rails of conveyors and
easily adjusted.

E39-L151 1 set For left to right adjustment

Horizontal Protective Cover

E39-L142 1
Bracket *

Compact Protective Cover

E39-L44 1 Rear Mounting Bracket E39-L144 1
Bracket (For E3Z only) *

Note: When using a Through-beam Sensor, order one Mounting Bracket for the Receiver and one for the Emitter
* Cannot be used for Standard Connector models.

Sensor I/O Connectors

(Models for Connectors and Pre-wired Connectors: A Connector is not provided with the Sensor. Be sure to order a Connector separately.)
(Refer to Dimensions on XS3, XS2)

Size Cable Appearance Cable type Model

2m XS3F-M421-402-A
Straight *1
5m XS3F-M421-405-A
M8 4-wire
2m XS3F-M422-402-A
L-shaped *1 *2
5m XS3F-M422-405-A
Standard
2m XS2F-D421-DC0-A
Straight *1
M12 5m XS2F-D421-GC0-A
(For -M1J 3-wire
models) 2m XS2F-D422-DC0-A
L-shaped *1
5m XS2F-D422-GC0-A
Note: When using a Through-beam Sensor, order one Mounting Bracket for the Receiver and one for the Emitter
*1. The connector will not rotate after connecting.
*2. The cable is fixed at an angle of 180° from the sensor emitter/receiver surface.

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 E3Z-LT/LR/LL
Ratings and Specifications
Sensing Retro-reflective with MSR
Through-beam Distance-settable (BGS models)
method function
Response Standard response High-speed response
NPN
E3Z-LT61/-LT66 E3Z-LR61/-LR66 E3Z-LL61/-LL66 E3Z-LL63/-LL68
output
Model
PNP
Item E3Z-LT81/-LT86 E3Z-LR81/-LR86 E3Z-LL81/-LL86 E3Z-LL83/-LL88
output
0.3 to 15 m
(when using E39-R1) White paper (100 × 100 mm): White paper (100 × 100 mm):
0.2 to 7 m 20 to 300 mm 25 to 300 mm
Sensing distance 60 m
(when using E39-R12) Black paper (100 × 100 mm): Black paper (100 × 100 mm):
0.2 to 7 m 20 to 160 mm 25 to 100 mm
(when using E39-R6)
White paper (100 × 100 mm): White paper (100 × 100 mm):
40 to 300 mm 40 to 300 mm
Set distance range ---
Black paper (100 × 100 mm): Black paper (100 × 100 mm):
40 to 160 mm 40 to 100 mm
Spot diameter (typical) 5-mm dia. at 3 m 0.5-mm dia. at 300 mm
Standard sensing object Opaque: 12-mm dia. min. Opaque: 75-mm dia. min. ---
Minimum detectable
6-mm-dia. opaque object at 3 m 0.2-mm-dia. stainless-steel pin gauge at 300 mm
object (typical)
Differential travel --- 5% max. of set distance
Black/white error --- 5% at 160 mm 5% at 100 mm
Directional angle Receiver: 3 to 15° ---
Light source (wavelength) Red LD (655 nm), JIS CLass 1, IEC Class 1, FDA Class II
Power supply voltage 12 to 24 VDC±10%, ripple (p-p): 10% max.
35 mA (Emitter 15 mA,
Current consumption 30 mA max.
Receiver 20 mA)
Control output Load power supply voltage: 26.4 VDC max., Load current: 100 mA max., Open collector output
Load current of less than 10 mA: 1 V max.
Residual output voltage
Load current of 10 to 100 mA: 2 V max.
Output mode switching Switch to change between light-ON and dark-ON
Reversed power supply
polarity protection, Output
Reversed power supply polarity protection, Output short-circuit protection, Mutual interference pre-
Protection circuits short-circuit protection, and
vention, and Reversed output polarity protection
Reversed output polarity
protection
Response time Operate or reset: 1 ms max. Operate or reset: 0.5 ms max.
Sensitivity adjustment One-turn adjuster Five-turn endless adjuster
Ambient illumination Incandescent lamp: 3,000 lx max.
(Receiver side) Sunlight: 10,000 lx max.
Ambient temperature range Operating: −10 to 55°C, Storage: −25 to 70°C (with no icing or condensation)
Ambient humidity range Operating: 35% to 85%, Storage: 35% to 95% (with no icing or 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 55 Hz, 1.5-mm double amplitude for 2 hours each in X, Y, and Z directions
Shock resistance Destruction: 500 m/s2 3 times each in X, Y, and Z directions
Degree of protection IP67 (IEC 60529)
Pre-wired cable (standard length: 2 m): E3Z-L@@1/-L@@3
Connection method
Standard M8 Connector: E3Z-L@@6/-L@@8
Operation indicator (orange)
Indicator Stability indicator (green)
Emitter for Through-bream Models has power indicator (orange) only.
Pre-wired cable
Weight Approx. 120 g Approx. 65 g
(2 m)
(packed
state) Standard
Approx. 30 g Approx. 20 g
Connector
Case PBT (polybutylene terephthalate)
Material
Lens Modified polyarylate resin Methacrylic resin Modified polyarylate resin
Accessories Instruction manual (Neither Reflectors nor Mounting Brackets are provided with any of the above models.)

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 E3Z-LT/LR/LL
Engineering Data (Typical)

Parallel Operating Range

Through-beam Models Through-beam Models Retro-reflective Models
E3Z-LT@@ E3Z-LT@@ + E39-S65A E3Z-LR@@

Distance (mm)
Distance Y (mm)

150 20

Distance Y (mm)
60
E39-R1
15 Y
100 40
10 E39-R6 X
50 20
5

0 0 0
20 40 60 80 2 4 6 8 10 5 10 15 20 25 30

−5
−50 −20
Y
−10
E39-R12
−100 X
−40
−15

−150 −20 −60

Distance X (m) Distance (m) Distance X (m)

Operating Range at a Set Distance Operating Range at a Set Distance

of 300 mm of 40 mm
BGS Models BGS Models
E3Z-LL@@ E3Z-LL@@
Operating range Y (mm)

2.50
Operating range Y (mm)

3
2.00 Y
Sensing object:
100 × 100 mm 2
1.50
X white paper
1.00 Y
Sensing object:
1 100 × 100 mm
0.50 white paper
X
0.00 0
0 50 100 150 200 350 10 20 30 40 50 60
250 300
−0.50
−1
−1.00

−1.50
−2
−2.00

−2.50 −3
Distance X (mm) Distance X (mm)

Excess Gain vs. Set Distance

Through-beam Models Retro-reflective Models
E3Z-LT@@ E3Z-LR@@
10000
Excess gain ratio (multiple)

100
Excess gain ratio (multiple)

E39-R1

10

1000

E39-R12

1
E39-R6

100 0.1
0 10 20 30 40 50 60 70 80 0 10 20 30
Distance (m) Distance (m)

Close Range Characteristics

BGS Models
E3Z-LL@1/-LL@6 E3Z-LL@3/-LL@8
Sensing distance (mm)

350 350
Sensing distance (mm)

300 mm 300 mm
300 300

250 250

200 200
160 mm
150 150

100 100 mm
100

40 mm 40 mm 40 mm 40 mm
50 50

10 mm 12 mm 0 mm 9 mm 10 mm 21 mm 0 mm 9 mm
0 0
White Black White Black White Black White Black
paper paper paper paper paper paper paper paper
Setting: Setting: Setting: Setting: Setting: Setting: Setting: Setting:
300 mm 160 mm 40 mm 40 mm 300 mm 100 mm 40 mm 40 mm

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 E3Z-LT/LR/LL

Sensing Distance vs. Sensing Object Material

BGS Models
E3Z-LL@1/-LL@6 E3Z-LL@3/-LL@8 E3Z-LL@1/-LL@6
White Paper with a Set Distance of 40 mm White Paper with a Set Distance of 40 mm White Paper with a Set Distance of 300 mm
Sensing distance (mm)

Sensing distance (mm)

50 50 350

Sensing distance (mm)

300
40 40
250

30 30 200

150
20
20

100

10
10
50

0 0
White Veneer Card- Black Black SUS Mirror 0 White Veneer Card- Black Black SUS Mirror
paper board paper rubber surface White Veneer Card- Black Black SUS Mirror paper board paper rubber surface
paper board paper rubber surface
Material Material
Material

Emission Spot Diameter vs. Distance

Through-beam and Retro-reflective BGS Models (Same for All Models)
Models (Same for All Models)
E3Z-LL@3/-LL@8
E3Z-LT@@, E3Z-LR@@ E3Z-LL@@
White Paper with a Set Distance of 100 mm
120
Sensing distance (mm)

100
Spot diameter (mm)

Spot diameter (mm)

1.4
90 a
1.2
100
80 Dimension a
b
70 1.0
Spot shape
80
60
0.8

60 50
Dimension a
0.6 Dimension b
40

40 30 a
0.4
20 Dimension b b
20 0.2
10 Spot shape

0 0
0 0 10 20 30 40 50 60 0 100 200 300 400 500 600
White Veneer Card- Black Black SUS Mirror
paper board paper rubber surface Set distance (m) Set distance (mm)
Material

Hysteresis vs. Distance

BGS Models
E3Z-LL@1 (LL@6) E3Z-LL@3 (LL@8)
Hysteresis (%)

2.50
Hysteresis (%)

2.50

2.00 2.00
Black
paper
Black
paper
1.50 1.50

1.00 1.00
White White
paper paper

0.50 0.50

0.00 0.00
0 100 200 300 400 0 100 200 300 400
Set distance (mm) Set distance (mm)

Inclination Characteristics (Vertical) Inclination Characteristics (Horizontal)

BGS Models BGS Models
E3Z-LL@@ E3Z-LL@@
20
Sensing distance variation (%)

20
Sensing distance variation (%)

Distance setting: 300 mm

Distance setting: 300 mm
15 Sensing object: White paper
Sensing object: White paper 15
100 × 100 mm
100 × 100 mm
10 10

5 5

0 0
(Upwards
−5 and −5 (Left and
Downwards) Right)
Inclination
−10 Inclination angle
angle −10
+θ
+θ
−15 −θ
−θ −15
Sensing Center Sensing Center
object line object line
−20 −20
−40 −30 −20 −10 0 10 20 30 40 −40 −30 −20 −10 0 10 20 30 40
Inclination angle θ (°) Inclination angle θ (°)

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 E3Z-LT/LR/LL
I/O Circuit Diagrams
NPN Output
Operation Operation
Model Timing charts Output circuit
mode selector
Light incident Through-beam Receivers, Retro-reflective Models
Light interrupted Brown 12 to 24 VDC
Operation indicator ON Operation 1
Stability
(orange) OFF L side indicator
indicator Load
Light-ON ON (Control (Relay)
Output transistor
OFF (LIGHT ON) (Orange) (Green)
output)
100 mA
max.
Load Operate Photo- 4
electric Black
(e.g., relay) Reset Sensor ZD
(Between brown and black leads) Main Blue
Circuit 3
Light incident 0V
Light interrupted
M12 Connector M8 4-pin Connector M8 3-pin Connector
Operation indicator ON
Pin Arrangement Pin Arrangement Pin Arrangement
E3Z-LT61 * (orange) OFF D side
E3Z-LT66 * Dark-ON ON 1 2 4 4
Output transistor
OFF (DARK ON) 2 4 1 3 1 3

E3Z-LR61 Load Operate 3

(e.g., relay) Reset
E3Z-LR66 (Between brown and black leads) Pin 2 is not used.

Through-beam Emitter M8 3-pin Connector

Brown M12 Connector M8 4-pin Connector
Power 1 Pin Arrangement Pin Arrangement Pin Arrangement
indicator
(orange) 1 4
2 4
Photo- 2 4 1 3 1 3
electric 12 to 24 VDC
3
Sensor Main
Circuit
Blue Pins 2 and 4
3
are not used.
NEAR FAR 12 to 24 VDC
Operation Brown
indicator ON Operation 1
(orange) indicator Stability
OFF Load
L side indicator (Control
Light-ON Output ON
(Orange) (Green) output) 100 mA (Relay)
transistor OFF (LIGHT ON) Photo- 4
max.
Load Operate electric
E3Z-LL61 (e.g., relay) Reset Sensor ZD
Black
Main Blue
E3Z-LL66 (Between brown and black leads) Circuit 3
0V
E3Z-LL63 Operation NEAR FAR
M12 Connector M8 4-pin Connector M8 3-pin Connector
E3Z-LL68 indicator
(orange)
ON
OFF Pin Arrangement Pin Arrangement Pin Arrangement
Output ON D side 1 2 4
Dark-ON transistor
4
OFF (DARK ON) 2
3
4 1 3 1 3
Load Operate
(e.g., relay) Reset
(Between brown and black leads) Pin 2 is not used.

PNP Output
Operation Operation
Model Timing charts Output circuit
mode selector

Light incident
Light interrupted Through-beam Receivers, Retro-reflective Models
Operation indicator ON Brown 12 to 24 VDC
Operation 1
(orange) OFF L side Stability
Light-ON ON indicator
Output transistor
OFF (LIGHT ON) indicator
(Green) ZD
Load Operate (Orange)
Black
(e.g., relay) Reset Photo- 4
(Between blue and black leads) electric (Control Load
Sensor 100 mA
Main
output) max. (Relay)
Circuit 3
Blue 0V
Light incident
M12 Connector M8 4-pin Connector M8 3-pin Connector
Light interrupted
Pin Arrangement Pin Arrangement Pin Arrangement
E3Z-LT81 * Operation indicator ON
E3Z-LT86 *
(orange) OFF D side 1 2 4 4
Dark-ON ON 2 4 1 3 1 3
E3Z-LR81
Output transistor
OFF (DARK ON) 3
Load Operate
E3Z-LR86 (e.g., relay) Reset Pin 2 is not used.
(Between blue and black leads)

Through-beam Emitter
Brown
Power 1 M12 Connector M8 4-pin Connector M8 3-pin Connector
indicator Pin Arrangement Pin Arrangement Pin Arrangement
(orange)
1 2 4 4
Photo- 2 4 1 3 1 3
electric 12 to 24 VDC
Sensor Main 3
Circuit Blue
3 Pins 2 and 4 are not used.

Operation NEAR FAR Brown 12 to 24 VDC

indicator Operation 1
ON
(orange) OFF indicator Stability
indicator
Output ON L side ZD
Light-ON transistor (Orange) (Green)

Load
OFF (LIGHT ON) Photo- 4
Black
Operate electric (Control
E3Z-LL81 (e.g., relay) Reset Sensor output)
100 mA Load
(Relay)
(Between blue and black leads) Main max.
E3Z-LL86 Circuit 3
Blue 0V
E3Z-LL83 Operation
NEAR FAR
M12 Connector M8 4-pin Connector M8 3-pin Connector
E3Z-LL88 indicator ON Pin Arrangement Pin Arrangement Pin Arrangement
(orange) OFF
ON D side 1 2 4 4
Dark-ON Output 2 4 1 3 1 3
transistor OFF (DARK ON) 3
Load Operate
(e.g., relay) Reset
Pin 2 is not used.
(Between blue and black leads)

* Models numbers for Through-beam Sensors (E3Z-LT@@) are for sets that include both the Emitter and Receiver.
The model number of the Emitter is expressed by adding "-L" to the set model number (example: E3Z-LT61-L 2M), the model number of the Receiver, by adding "-D"
(example: E3Z-LT61-D 2M.) Refer to Ordering Information to confirm model numbers for Emitter and Receivers.

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 E3Z-LT/LR/LL

Plugs (Sensor I/O Connectors)

M8 4-pin Connectors
Wire color
4 2 1 Brown
2 White
3 1
3 Blue
4 Black

XS3F-M421-402-A XS3F-M422-402-A
XS3F-M421-405-A XS3F-M422-405-A
M12 Connectors
Pin No.
Wire color

2 1 Brown
2
1 3 3 Blue
4 Black
4

XS2F-D421-DC0-A XS2F-D422-DC0-A
XS2F-D421-GC0-A XS2F-D422-GC0-A

Nomenclature
Sensors with Sensitivity Adjustment and Distance-settable Sensor
Mode Selector Switch BGS Models
Through-beam Models E3Z-LL@@
E3Z-LT@@ (Receiver)

Retro-reflective Models
E3Z-LR@@

Stability indicator Operation indicator Distance adjuster

(green) (orange) (5-turn endless)
Sensitivity adjuster Operation indicator
Stability indicator
(green) (orange)
Operation selector Mode selector
switch

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 E3Z-LT/LR/LL
Safety Precautions
Refer to Warranty and Limitations of Liability.
WARNING Precautions for Correct Use
This product is not designed or rated for ensuring Do not use the product in atmospheres or environments that exceed
safety of persons. Do not use it for such purpose. product ratings.
● Laser Warning Labels
Be sure that the correct laser warning label (enclosed) is attached for
To ensure safe use of laser products, do not allow the the country of intended use of the equipment containing the
laser beam to enter your eye. Direct exposure may Photoelectric Sensor. Refer to the user's manual for details.
adversely affect your eyesight. ● Usage Environment
Water Resistance
CAUTION The Sensor is rated IP67. Do not use it in water, in the rain, or
outdoors.
Do not connect an AC power supply to the Sensor.
If AC power (100 VAC or more) is supplied to the Ambient Environment
Sensor, it may explode or burn. Do not install the product in the following locations. Doing so may
result in product failure or malfunction.
Precautions for Safe Use • Locations subject to excess dust and dirt
• Locations subject to direct sunlight
Be sure to abide by the following precautions for the safe operation of • Locations subject to corrosive gas
the Sensor. • Locations subject to organic solvents
● Operating Environment • Locations subject to shock or vibration
Do not use the Sensor in locations with explosive or flammable gas. • Locations subject to exposure to water, oil, or chemicals
• Locations subject to high humidity or condensation
● Wiring
● Designing
Power Supply Voltage and Output Load Power Supply
Power Reset Time
Voltage The Sensor is ready to operate 100 ms after the Sensor is turned ON.
Make sure that the power supply to the Sensor is within the rated If the load and Sensor are connected to independent power supplies
voltage range. If a voltage exceeding the rated voltage range is respectively, be sure to turn ON the Sensor before supplying power
supplied to the Sensor, it may explode or burn. to the load.
Power Supply Voltage ● Wiring
The maximum power supply voltage is 26.4 VDC. Applying a voltage Avoiding Malfunctions
exceeding the rated range may damage the Sensor or cause burning.
If using the Sensor with an inverter or servomotor, always ground the
Load FG (frame ground) and G (ground) terminals, otherwise the Sensor
may malfunction.
Do not use a load that exceeds the rated load.
● Mounting
Load Short-circuiting
Mounting the Sensor
Do not short-circuit the load, otherwise the Sensor may be damaged
or it may burn. • If Sensors are mounted face-to-face, make sure that the optical
axes are not in opposition to each other. Otherwise, mutual
Connection without Load interference may result.
Do not connect the power supply to the Sensor with no load • Always install the Sensor carefully so that the aperture angle range
connected, otherwise the internal elements may explode or burn. of the Sensor will not cause it to be directly exposed to intensive
Always connect a load when wiring. light, such as sunlight, fluorescent light, or incandescent light.
• Do not strike the Photoelectric Sensor with a hammer or any other
tool during the installation of the Sensor, or the Sensor will lose its
water-resistive properties.
• Use M3 screws to mount the Sensor.
• When mounting the case, make sure that the tightening torque
applied to each screw does not exceed 0.54 N·m.
Metal Connectors
• Always turn OFF the power supply to the Sensor before connecting
or disconnecting the metal connector.
• Hold the connector cover to connect or disconnect it.
If the XS3F is used, always tighten the connector cover by hand. Do
not use pliers.
If the tightening is insufficient, the degree of protection will not be
maintained and the Sensor may become loose due to vibration.
The appropriate tightening torque is 0.3 to 0.4 N·m.
If other commercially available connectors are used, follow the
recommended connector application conditions and recommended
tightening torque specifications.

9
 E3Z-LT/LR/LL

Mounting Direction for Distance-settable Models • The stability indicator may turn off in reaction to reflection from
• Make sure that the sensing side of background objects. In such cases, incline the Sensor by 10° as
the Sensor is parallel with the shown in the illustration for more stable detection.
surface of the sensing objects. Reflection
Approx. 10˚
Normally, do not incline the
Background object,
Sensor towards the sensing conveyor, etc.
Sensing side
object.
Surface of sensing
object ● Adjusting Distance-settable Models
Indicator Operation
If the sensing object has a glossy
surface, however, incline the Sensor Distance threshold
(settable)
by 5° to 10° as shown in the
Unstable NEAR Unstable FAR
illustration, provided that the Sensor
is not influenced by background Stable NEAR Stable FAR
objects.
NEAR region FAR region

Glossy object
BGS
Stability ON
(green) OFF
L/ON
• If there is a mirror-like object below the Sensor, the Sensor may not Operation ON
(orange) OFF
operate stably. Therefore, incline the Sensor or separate the
Stability ON
Sensor from the mirror-like object as shown below. (green) OFF
D/ON
Operation ON
(orange) OFF

Note: If the stability indicator is lit, the detection/no detection status is

Sensing
object stable within the rated ambient operating temperature (−10 to
55°C).

Mirror-like object ● Inspection and Maintenance

Cleaning
• Do not install the Sensor in the wrong direction. Refer to the Never use paint thinners or other organic solvents to clean the surface
following illustration. of the product.
Correct Correct Incorrect

Sensing
Sensing Sensing object
object object
Moving Moving direction
Moving direction direction

Install the Sensor as shown in the following illustration if each sensing

object greatly differs in color or material.

Correct Incorrect

Moving direction
Moving direction

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 E3Z-LT/LR/LL
Dimensions (Unit: mm)
Tolerance class IT16 applies to dimensions in this datasheet unless otherwise specified.

Sensors
Through-beam＊ Emitter
12
Pre-wired Models E3Z-LT@1-L
E3Z-LT61
E3Z-LT81 Power indicator M12 Pre-wired Connector
(orange) (E3Z-LT@@-M1J)
10.8
2.1 20
2.8 3 4 dia. vinyl-insulated round
cable with 2 or 3 conductors,
Termi- Specifi- Standard length: 0.3 m
Lens 4
3.5 dia.
nal No. cations 1
12.7 1 +V
31 25.4 2 --- 3
2
3 0V M12×1

4 ---
Two, M3 Pre-wired Connector Models with
Pins 2 and 4 are not M8 connectors (Inquire)
4 dia. vinyl-insulated round cable with used.
2 conductors (Conductor cross section: 4 dia. vinyl-insulated round
0.2 mm2 (AWG24), Insulator diameter:1.1 mm), cable with 2 or 3 conductors,
Standard length: 2 m Standard length: 0.3 m
2 4
11.2 4.5
Receiver Operation Indicator
7.5
E3Z-LT@1-D (orange)
1 3
M8

Stability indicator (green) Operation selector Pre-wired Connector Models with

M8 3-pin connectors (Inquire)
Sensitivity adjuster
10.8 4 dia. vinyl-insulated round
2.1 20 cable with 2 or 3 conductors,
2.8 3
Standard length: 0.3 m
4
Lens Termi- Specifi-
nal No. cations
12.7
1 +V 1 3
31 11 25.4
2 --- M8×1

3 0V * The Emitter cable has two conductors and the

Two, M3 4 Output Receiver cable has three conductors.
Pin 2 is not used.
4 dia. vinyl-insulated round cable with
3 conductors (Conductor cross section:
0.2 mm2 (AWG24), Insulator diameter: 1.1 mm),
Standard length: 2m
12
Through-beam＊
Standard Connector Emitter
E3Z-LT@6-L
Models
Power indicator (orange)
E3Z-LT66
10.8
E3Z-LT86 2.1 20
2.8 3

Lens 3.5 dia.

12.7
31 25.4

10.4 Two, M3

M8 4-pin connector
9.75
Operation Indicator 11.2 4.5
Receiver
(orange) 7.5
E3Z-LT@6-D

Operation selector
Stability indicator (green)
Sensitivity adjuster
10.8
2.1 20
2.8 3

Lens
12.7
31 11 25.4

Two, M3
10.4

M8 4-pin connector
9.75

* Models numbers for Through-beam Sensors (E3Z-LT@@) are for sets that include both the Emitter and Receiver.
The model number of the Emitter is expressed by adding "-L" to the set model number (example: E3Z-LT61-L 2M), the model number of the Receiver, by adding "-D"
(example: E3Z-LT61-D 2M.) Refer to Ordering Information to confirm model numbers for Emitter and Receivers.

11
 E3Z-LT/LR/LL

Retro-reflective Models 11.2 4.5 M12 Pre-wired Connector

Pre-wired Models Operation Indicator 7.5 (E3Z-LR@@-M1J)
(orange) 4 dia. vinyl-insulated round
E3Z-LR61 cable with 3 conductors,
E3Z-LR81 Standard length: 0.3 m 4
1
Operation selector
Stability indicator (green)
Sensitivity adjuster 3
2
M12×1
10.8
2.1 20
Receiver 2.8 3 Pre-wired Connector Models with M8 connectors
Lens 7 dia.
(Inquire)
4 dia. vinyl-insulated round
cable with 3 conductors,
16.7 Standard length: 0.3 m
31 8 25.4 2 4

Two, M3 1 3
Emitter M8
Lens 2.5 dia.
Pre-wired Connector Models with M8 3-pin connectors
4 dia. vinyl-insulated round cable with
3 conductors (Conductor cross section: Termi- Specifi- (Inquire)
0.2 mm2 (AWG24), Insulator diameter: 1.1 mm), nal No. cations 4 dia. vinyl-insulated round
Standard length: 2m
1 +V cable with 3 conductors,
Standard length: 0.3 m 4
2 ---
3 0V
4 Output 1 3
M8×1

Retro-reflective Models
11.2 4.5
Standard Connector Operation Indicator
7.5
Models (orange)

E3Z-LR66
E3Z-LR86
Operation selector
Stability indicator (green)
Sensitivity adjuster

10.8
2.1 20
Receiver 2.8 3
Lens 7 dia.

16.7
31 8 25.4
Termi- Specifi-
Emitter nal No. cations
Lens 2.5 dia.
Two, M3
1 +V
10.4 2 ---
M8 connector
3 0V
9.75 4 Output

12
 E3Z-LT/LR/LL

BGS Models 12 M12 Pre-wired Connector

Operation Indicator
Pre-wired Models (orange) 7.3 (E3Z-LL@@-M1J)
8.4 4 dia. vinyl-insulated round
E3Z-LL61 cable with 3 conductors,
E3Z-LL81 Standard length: 0.3 m
1
4
E3Z-LL63 Set distance adjuster Operation selector
E3Z-LL83 2
3
Stability indicator (green)
M12×1
10.8 Pre-wired Connector Models with
2.1 Receiver 20
2.8 3 M8 connectors (Inquire)
Lens 7 dia.
4 dia. vinyl-insulated round
cable with 3 conductors,
Standard length: 0.3 m
18.7 2 4
31 8 25.4

Emitter 1 3
Lens 2.5 dia. M8
Two, M3

Termi- Specifi- Pre-wired Connector Models with

4-dia. vinyl-insulated round cable with M8 3-pin connectors (Inquire)
3 conductors (Conductor cross section: nal No. cations
0.2 mm2 (AWG24), Insulator diameter:1.1 mm), 4 dia. vinyl-insulated round
1 +V cable with 3 conductors,
Standard length: 2 m and 0.5 m
2 --- Standard length: 0.3 m 4
3 0V
4 Output
1 3
M8×1

BGS Models
Standard M8 Operation Indicator 12
(orange) 7.3
Connector Models 8.4
E3Z-LL66
E3Z-LL86
Set distance adjuster
E3Z-LL68 Operation selector
E3Z-LL88 Stability indicator (green)
10.8
2.1 Receiver 20
2.8 3
Lens 7 dia.

18.7
31 8 25.4

Emitter
Lens 2.5 dia.
10.4
Two, M3
M8 connector
9.75
Termi- Specifi-
nal No. cations
1 +V
2 ---
3 0V
4 Output

13
 E3Z-LT/LR/LL

Accessories (Order Separately)

Slit Reflector
E39-S65A E39-R1
40.3
34
10.4 Two, 3.5 dia. 7.5
20.2
0.5 dia.

12.7
32.2
59.9 52

0.2-mm-thick 8

1.6
7 2.7
Material Materials
SUS301 stainless steel Reflective surface: Acrylic
Rear surface: ABS

Reflector Reflector
E39-R6 E39-R12

40
4.8
34 5.5

45
2.9
R3.7 23

60 52

30 Two, 23
3.4 dia.

R3.7
Two, 3.5 dia. 37
3.5 Materials
Materials Reflector: Polycarbonate (surface)
Reflective surface: Acrylic Acrylic (interior)
Rear surface: ABS Frame: ABS

Cat. No. E850-E1-01 In the interest of product improvement, specifications are subject to change without notice.

14
 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.

Warranty and Limitations of Liability

WARRANTY
OMRON's exclusive warranty is that the products are free from defects in materials and workmanship for a period of one year (or other period if specified)
from date of sale by OMRON.

OMRON MAKES NO WARRANTY OR REPRESENTATION, EXPRESS OR IMPLIED, REGARDING NON-INFRINGEMENT, MERCHANTABILITY, OR

FITNESS FOR PARTICULAR PURPOSE OF THE PRODUCTS. ANY BUYER OR USER ACKNOWLEDGES THAT THE BUYER OR USER ALONE HAS
DETERMINED THAT THE PRODUCTS WILL SUITABLY MEET THE REQUIREMENTS OF THEIR INTENDED USE. OMRON DISCLAIMS ALL OTHER
WARRANTIES, EXPRESS OR IMPLIED.

LIMITATIONS OF LIABILITY
OMRON SHALL NOT BE RESPONSIBLE FOR SPECIAL, INDIRECT, OR CONSEQUENTIAL DAMAGES, LOSS OF PROFITS OR COMMERCIAL LOSS
IN ANY WAY CONNECTED WITH THE PRODUCTS, WHETHER SUCH CLAIM IS BASED ON CONTRACT, WARRANTY, NEGLIGENCE, OR STRICT
LIABILITY.

In no event shall the responsibility of OMRON for any act exceed the individual price of the product on which liability is asserted.

IN NO EVENT SHALL OMRON BE RESPONSIBLE FOR WARRANTY, REPAIR, OR OTHER CLAIMS 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 OR REPAIR.

Application Considerations

SUITABILITY FOR USE

OMRON shall not be responsible for conformity with any standards, codes, or regulations that apply to the combination of products in the customer's
application or use of the products.

At the customer's request, OMRON will provide applicable third party certification documents identifying ratings and limitations of use that apply to the
products. This information by itself is not sufficient for a complete determination of the suitability of the products in combination with the end product,
machine, system, or other application or use.

The following are some examples of applications for which particular attention must be given. This is not intended to be an exhaustive list of all possible
uses of the products, nor is it intended to imply that the uses listed may be suitable for the products:

• Outdoor use, uses involving potential chemical contamination or electrical interference, or conditions or uses not described in this catalog.

• Nuclear energy control systems, combustion systems, railroad systems, aviation systems, medical equipment, amusement machines, vehicles,
safety equipment, and installations subject to separate industry or government regulations.

• Systems, machines, and equipment that could present a risk to life or property.

Please know and observe all prohibitions of use applicable to the products.

NEVER USE THE PRODUCTS FOR AN APPLICATION INVOLVING SERIOUS RISK TO LIFE OR PROPERTY WITHOUT ENSURING THAT THE
SYSTEM AS A WHOLE HAS BEEN DESIGNED TO ADDRESS THE RISKS, AND THAT THE OMRON PRODUCTS ARE PROPERLY RATED AND
INSTALLED FOR THE INTENDED USE WITHIN THE OVERALL EQUIPMENT OR SYSTEM.

PROGRAMMABLE PRODUCTS
OMRON shall not be responsible for the user's programming of a programmable product, or any consequence thereof.

Disclaimers

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 model numbers when published ratings or features are changed, or when significant construction changes are made.
However, some specifications of the products may be changed without any notice. When in doubt, special model numbers may be assigned to fix or
establish key specifications for your application on your request. Please consult with your OMRON representative at any time to confirm actual
specifications of purchased products.

DIMENSIONS AND WEIGHTS

Dimensions and weights are nominal and are not to be used for manufacturing purposes, even when tolerances are shown.

PERFORMANCE DATA
Performance data given in this catalog 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 users must correlate it to actual application requirements. Actual performance is subject to the OMRON
Warranty and Limitations of Liability.

ERRORS AND OMISSIONS

The information in this document has been carefully checked and is believed to be accurate; however, no responsibility is assumed for clerical,
typographical, or proofreading errors, or omissions.

2010.12
In the interest of product improvement, specifications are subject to change without notice.

OMRON Corporation
Industrial Automation Company
http://www.ia.omron.com/
(c)Copyright OMRON Corporation 2010 All Right Reserved.