Omron E3Z-LR81, E3Z-LR61, E3Z-LR66, E3Z-LL61, E3Z-LR86 User Manual

1

CSM_E3Z-LT_LR_LL_DS_E_6_4

Compact Laser Photoelectric Sensor with Built-in Amplifier

E3Z-LT/LR/LL

Applications

Greatly Enhanced Beam Visibility
for Easier Optical Axis Adjustment of Sensors

Detect the sides of large tiles.

Detect chip components on tape.

Long-distance Sensing
at 300 mm (White Paper)

Reliable Detection of
Small Objects and
Narrow Gaps with the Small Spot

Count bottles.

Detect protruding straws.

A Low Black/White Error for
Applications with Mixed Colors

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.

E3Z-LT/LR/LL

2

Ordering Information

Sensors (Refer to Dimensions on page 11.)

*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.)

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.)

Sensing method Appearance

Connection

method

Response

time

Sensing distance

Model

NPN output PNP output

Through-beam
(Emitter + Receiver) *4

Pre-wired
(2 m)*3

1 ms

E3Z-LT61 2M E3Z-LT81 2M

Emitter E3Z-T61-L 2M
Receiver E3Z-T61-D 2M

Emitter E3Z-T81-L 2M
Receiver E3Z-T81-D 2M

Connector
(M8, 4 pins)

E3Z-LT66 E3Z-LT86

Emitter E3Z-T66-L
Receiver E3Z-T66-D

Emitter E3Z-T86-L
Receiver E3Z-T86-D

Retro-reflective with
MSR function

Pre-wired
(2 m)*3

E3Z-LR61 2M E3Z-LR81 2M

Connector
(M8, 4 pins)

E3Z-LR66 E3Z-LR86

Distance-settable
(BGS Models)

Pre-wired
(2 m)*3

E3Z-LL61 2M E3Z-LL81 2M

Connector
(M8, 4 pins)

E3Z-LL66 E3Z-LL86

Pre-wired
(2 m)*3

0.5 ms

E3Z-LL63 2M E3Z-LL83 2M

Connector
(M8, 4 pins)

E3Z-LL68 E3Z-LL88

Slit width Sensing distance

Minimum detectable object

(typical)

Model Contents

0.5 mm dia. 3 m 0.1 mm dia. E39-S65A

One set

(contains Slits for both the

Emitter and Receiver)

Name Sensing distance (typical) Model Remarks

Reflector

15 m (300 mm) E39-R1

• Retro-reflective models are not provided with Reflectors.

• Separate the Sensor and the Reflector by at least the
distance given in parentheses.

• The MSR function is enabled.

7 m (200 mm) E39-R12

7 m (200 mm) E39-R6

Red light

60 m

*1

(Using E39-R12)

(Using E39-R1)

7 m

(200 mm)

(Using E39-R6)

15 m

(300 mm)

7 m

(200 mm)

*2

20 to 40 mm

(Min. distance set)

20 to 300 mm

(Max. distance set)

25 to 40 mm

(Min. distance set)

25 to 300 mm

(Max. distance set)

E3Z-LT/LR/LL

3

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.)

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)

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 su

rface.

Appear-

ance

Model Quantity Remarks

Appear-

ance

Model Quantity Remarks

E39-L153 1

Mounting Brackets

E39-L98 1 Metal Protective Cover Bracket *

E39-L104 1 E39-L150 1 set

(Sensor adjuster)

Easily mounted to the aluminum
frame rails of conveyors and
easily adjusted.

For left to right adjustment

E39-L43 1 Horizontal Mounting Bracket *

E39-L151 1 set

E39-L142 1

Horizontal Protective Cover
Bracket *

E39-L44 1 Rear Mounting Bracket E39-L144 1

Compact Protective Cover
Bracket (For E3Z only) *

Size Cable Appearance Cable type Model

M8

Standard

2 m

4-wire

XS3F-M421-402-A

5 m XS3F-M421-405-A
2 m XS3F-M422-402-A
5 m XS3F-M422-405-A

M12
(For -M1J
models)

2 m

3-wire

XS2F-D421-DC0-A

5 m XS2F-D421-GC0-A

2 m XS2F-D422-DC0-A
5 m XS2F-D422-GC0-A

Straight *1

L-shaped *1 *2

Straight *1

L-shaped *1

E3Z-LT/LR/LL

4

Ratings and Specifications

Sensing

method

Through-beam

Retro-reflective with MSR

function

Distance-settable (BGS models)

Response Standard response High-speed response

Model

NPN

output

E3Z-LT61/-LT66 E3Z-LR61/-LR66 E3Z-LL61/-LL66 E3Z-LL63/-LL68

Item

PNP

output

E3Z-LT81/-LT86 E3Z-LR81/-LR86 E3Z-LL81/-LL86 E3Z-LL83/-LL88

Sensing distance 60 m

0.3

to

15 m

(when using E39-R1)

0.2

to

7 m

(when using E39-R12)

0.2

to

7 m

(when using E39-R6)

White paper (100 × 100 mm):
20 to 300 mm
Black paper (100 × 100 mm):
20 to 160 mm

White paper (100 × 100 mm):
25 to 300 mm
Black paper (100 × 100 mm):
25 to 100 mm

Set distance range ---

White paper (100 × 100 mm):
40 to 300 mm
Black paper (100 × 100 mm):
40 to 160 mm

White paper (100 × 100 mm):
40 to 300 mm
Black paper (100 × 100 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
object (typical)

6-mm-dia. opaque object at 3 m 0.2-mm-dia. stainless-steel pin gauge at 300 mm

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.

Current consumption

35 mA (Emitter 15 mA,
Receiver 20 mA)

30 mA max.

Control output Load power supply voltage: 26.4 VDC max., Load current: 100 mA max., Open collector output

Residual output voltage

Load current of less than 10 mA: 1 V max.
Load current of 10 to 100 mA: 2 V max.

Output mode switching Switch to change between light-ON and dark-ON

Protection circuits

Reversed power supply
polarity protection, Output
short-circuit protection, and
Reversed output polarity
protection

Reversed power supply polarity protection, Output short-circuit protection, Mutual interference pre­vention, and 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
(Receiver side)

Incandescent lamp: 3,000 lx max.
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)

Connection method

Pre-wired cable (standard length: 2 m): E3Z-L@@1/-L@@3
Standard M8 Connector: E3Z-L@@6/-L@@8

Indicator

Operation indicator (orange)
Stability indicator (green)
Emitter for Through-bream Models has power indicator (orange) only.

Weight
(packed
state)

Pre-wired cable
(2 m)

Approx. 120 g Approx. 65 g

Standard
Connector

Approx. 30 g Approx. 20 g

Material

Case PBT (polybutylene terephthalate)
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.)

E3Z-LT/LR/LL

5

Engineering Data (Typical)

Parallel Operating Range

Through-beam Models Through-beam Models Retro-reflective Models
E3Z-LT@@

E3Z-LT@@ + E39-S65A

E3Z-LR@@

Operating Range at a Set Distance
of 300 mm

Operating Range at a Set Distance
of 40 mm

BGS Models BGS Models
E3Z-LL@@ E3Z-LL@@

Excess Gain vs. Set Distance

Through-beam Models

Retro-reflective Models

E3Z-LT@@

E3Z-LR@@

Close Range Characteristics

BGS Models
E3Z-LL@1/-LL@6

E3Z-LL@3/-LL@8

80604020

150

−150

100

−100

50

−50

0

Y

X

Distance X (m)

Distance Y (mm)

20

−20

15

−15

−10

10

5

−5

0

810462

Distance (mm)

Distance (m)

3020 2510 155

60

−60

40

−40

20

−20

0

Y

X

E39-R12

E39-R1

E39-R6

Distance X (m)

Distance Y (mm)

350

300

200

250

500

100 150

−

2.50

2.50

−

2.00

2.00

−

1.00

1.00

−

0.50

−

1.50

1.50

0.50

0.00

Y

X

Sensing object:
100 × 100 mm
white paper

Distance X (mm)

Operating range Y (mm)

605030 4010 20

3

−3

2

−2

1

−1

0

Y

X

Sensing object:
100 × 100 mm
white paper

Distance X (mm)

Operating range Y (mm)

02010 30 40 50 7060 80

10000

100

1000

Excess gain ratio (multiple)

100

10

1

0.1
3010 200

E39-R6

E39-R12

E39-R1

Distance (m)

Excess gain ratio (multiple)

300 mm

160 mm

40 mm

10 mm 12 mm 0 mm

9 mm

40 mm

350

100

50

300

150

200

250

0

White

paper
Setting:
300 mm

Black
paper

White
paper

Black
paper

Sensing distance (mm)

Setting:
40 mm

Setting:
40 mm

Setting:
160 mm

350

100

50

300

150

200

250

0

White
paper

Black
paper

White
paper

Black
paper

Sensing distance (mm)

300 mm

100 mm

40 mm

10 mm 21 mm 0 mm

9 mm

40 mm

Setting:
300 mm

Setting:
40 mm

Setting:
40 mm

Setting:
100 mm

E3Z-LT/LR/LL

6

Sensing Distance vs. Sensing Object Material

BGS Models

E3Z-LL@1/-LL@6

White Paper with a Set Distance of 40 mm

E3Z-LL@3/-LL@8

White Paper with a Set Distance of 40 mm

E3Z-LL@1/-LL@6

White Paper with a Set Distance of 300 mm

Emission Spot Diameter vs. Distance

Through-beam and Retro-reflective
Models (Same for All Models)

BGS Models (Same for All Models)

E3Z-LL@3/-LL@8

White Paper with a Set Distance of 100 mm

E3Z-LT@@, E3Z-LR@@ E3Z-LL@@

Hysteresis vs. Distance

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

Inclination Characteristics (Vertical) Inclination Characteristics (Horizontal)

BGS Models BGS Models
E3Z-LL@@ E3Z-LL@@

50

40

10

20

30

0

White
paper

Veneer Card-

board

Black
paper

Black
rubber

SUS Mirror

surface

Material

Sensing distance (mm)

50

40

10

20

30

0

White
paper

Veneer Card-

board

Black
paper

Black
rubber

SUS Mirror

surface

Material

Sensing distance (mm)

350

300

50

150

100

250

200

0

White
paper

Veneer Card-

board

Black
paper

Black
rubber

SUS Mirror

surface

Material

Sensing distance (mm)

120

100

20

60

40

80

0

White
paper

Veneer Card-

board

Black
paper

Black
rubber

SUS Mirror

surface

Material

Sensing distance (mm)

6030 40 5020100

100

50

10

20

30

40

90

60

70

80

0

Spot diameter (mm)

Dimension a

Dimension b

Set distance (m)

Spot shape

a

b

600300 400 5002001000

1.4

0.2

0.4

0.6

0.8

1.0

1.2

0

Dimension a

Dimension b

Spot diameter (mm)

Set distance (mm)

Spot shape

a

b

4003002001000

2.50

0.50

1.00

1.50

2.00

0.00

Black
paper

White
paper

Set distance (mm)

Hysteresis (%)

4003002001000

2.50

0.50

1.00

1.50

2.00

0.00

Black
paper

White
paper

Set distance (mm)

Hysteresis (%)

20

15

10

5

0

−5

−10

−15

−20

−40 −30 −20 −10 0 10203040

Sensing distance variation (%)

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

− θ

+ θ

Inclination angle θ (°)

(Upwards
and
Downwards)

Inclination
angle

Center
line

Sensing
object

− θ

+ θ

Inclination
angle

20

15

10

5

0

−5

−10

−15

−20

−40 −30 −20 −10 0 10 20 30 40

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

Sensing distance variation (%)

Inclination angle θ (°)

(Left and
Right)

Sensing
object

Center
line

E3Z-LT/LR/LL

7

I/O Circuit Diagrams

NPN Output

PNP Output

* 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.

Model

Operation

mode

Timing charts

Operation

selector

Output circuit

E3Z-LT61 *
E3Z-LT66 *
E3Z-LR61
E3Z-LR66

Light-ON

L side

(LIGHT ON)

Dark-ON

D side

(DARK ON)

E3Z-LL61
E3Z-LL66
E3Z-LL63
E3Z-LL68

Light-ON

L side

(LIGHT ON)

Dark-ON

D side

(DARK ON)

Light incident

Light interrupted

ON

OFF

ON

OFF

Operate

Reset

Operation indicator
(orange)

(Between brown and black leads)

Output transistor

Load
(e.g., relay)

4

3

1

100 mA
max.

0 V

Z

D

3

1

2

4

1

2

4

3

12 to 24 VDC

Through-beam Receivers, Retro-reflective Models

Pin 2 is not used.

Brown

Black

(Control

output)

Blue

Operation
indicator

Stability
indicator

(Green)

(Orange)

Load

(Relay)

Photo­electric
Sensor
Main
Circuit

M12 Connector
Pin Arrangement

M8 4-pin Connector
Pin Arrangement

4

1

3

M8 3-pin Connector
Pin Arrangement

Light incident

Light interrupted

ON

OFF

ON

OFF

Operate

Reset

Operation indicator
(orange)

(Between brown and black leads)

Output transistor

Load
(e.g., relay)

3

1

3

1

2

4

1

2

4

3

12 to 24 VDC

Through-beam Emitter

Power
indicator
(orange)

Pins 2 and 4
are not used.

Brown

Blue

Photo­electric
Sensor Main
Circuit

M12 Connector
Pin Arrangement

M8 4-pin Connector
Pin Arrangement

4

1

3

M8 3-pin Connector
Pin Arrangement

ON

OFF

ON

OFF

Operate

Reset

NEAR FAR

Operation
indicator
(orange)

Output
transistor

Load
(e.g., relay)

(Between brown and black leads)

4

3

1

3

1

2

4

1

2

4

3

100 mA
max.

0 V

Z

D

12 to 24 VDC

Pin 2 is not used.

Brown

Black

(Control

output)

Blue

Operation
indicator

Stability
indicator

(Green)

(Orange)

Load

(Relay)

Photo­electric
Sensor
Main
Circuit

M12 Connector
Pin Arrangement

M8 4-pin Connector
Pin Arrangement

4

1

3

M8 3-pin Connector
Pin Arrangement

ON

OFF

ON

OFF

Operate

Reset

NEAR FAR

Operation
indicator
(orange)

Output
transistor

Load
(e.g., relay)

(Between brown and black leads)

Model

Operation

mode

Timing charts

Operation

selector

Output circuit

E3Z-LT81 *
E3Z-LT86 *
E3Z-LR81
E3Z-LR86

Light-ON

L side

(LIGHT ON)

Dark-ON

D side

(DARK ON)

E3Z-LL81
E3Z-LL86
E3Z-LL83
E3Z-LL88

Light-ON

L side

(LIGHT ON)

Dark-ON

D side

(DARK ON)

Light incident

Light interrupted

ON

OFF

ON

OFF

Operate

Reset

Operation indicator
(orange)

(Between blue and black leads)

Output transistor

Load
(e.g., relay)

4

1

3

4

1

3

3

1

2

4

1

2

4

3

Through-beam Receivers, Retro-reflective Models

100 mA
max.

0 V

Z

D

12 to 24 VDC

Pin 2 is not used.

Brown

Black

(Control

output)

Blue

Operation
indicator

Stability
indicator

(Green)

(Orange)

Load

(Relay)

Photo­electric
Sensor
Main
Circuit

M12 Connector
Pin Arrangement

M8 4-pin Connector
Pin Arrangement

M8 3-pin Connector
Pin Arrangement

Light incident

Light interrupted

ON

OFF

ON

OFF

Operate

Reset

Operation indicator
(orange)

(Between blue and black leads)

Output transistor

Load
(e.g., relay)

3

1

4

1

3

3

1

2

4

1

2

4

3

12 to 24 VDC

Through-beam Emitter

Power
indicator
(orange)

Pins 2 and 4 are not used.

Brown

Blue

Photo­electric
Sensor Main
Circuit

M12 Connector
Pin Arrangement

M8 4-pin Connector
Pin Arrangement

M8 3-pin Connector
Pin Arrangement

ON

OFF

ON

OFF

Operate

Reset

NEAR

FAR

Operation
indicator
(orange)

Output
transistor

Load
(e.g., relay)

(Between blue and black leads)

4

1

3

3

1

2

4

1

2

4

3

4

1

3

100 mA
max.

0 V

Z

D

12 to 24 VDC

Pin 2 is not used.

Brown

Black

(Control

output)

Operation
indicator

Stability
indicator

(Green)

(Orange)

Load

(Relay)

Photo­electric
Sensor
Main
Circuit

M12 Connector
Pin Arrangement

M8 4-pin Connector
Pin Arrangement

M8 3-pin Connector
Pin Arrangement

Blue

ON

OFF

ON

OFF

Operate

Reset

NEAR FAR

Operation
indicator
(orange)

Output
transistor

Load
(e.g., relay)

(Between blue and black leads)

E3Z-LT/LR/LL

8

Plugs (Sensor I/O Connectors)

Nomenclature

2

4

13

1
2
3
4

Pin No.

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

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

Brow

n

Blue
Black

Wire colo

r

8 4-pin Connectors

2

4

1

3

1
2
3
4

XS3F-M421-402-A
XS3F-M421-405-A

XS3F-M422-402-A
XS3F-M422-405-A

Brown
White
Blue
Black

Wire color

12 Connectors

Distance adjuster

(5-turn endless)

Stability indicator

(green)

Operation selector

Operation indicator
(orange)

Sensitivity adjuster

Stability indicator

(green)

Operation indicator
(orange)

Mode selector
switch

Sensors with Sensitivity Adjustment and
Mode Selector Switch

Through-beam Models

E3Z-LT@@ (Receiver)

Retro-reflective Models

E3Z-LR@@

Distance-settable Sensor

BGS Models

E3Z-LL@@

E3Z-LT/LR/LL

9

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.

To ensure safe use of laser products, do not allow the
laser beam to enter your eye. Direct exposure may
adversely affect your eyesight.

Do not connect an AC power supply to the Sensor.
If AC power (100 VAC or more) is supplied to the
Sensor, it may explode or burn.

Be sure to abide by the following precautions for the safe operation of
the Sensor.

● Operating Environment

Do not use the Sensor in locations with explosive or flammable gas.

● Wiring

Power Supply Voltage and Output Load Power Supply

Voltage

Make sure that the power supply to the Sensor is within the rated
voltage range. If a voltage exceeding the rated voltage range is
supplied to the Sensor, it may explode or burn.

Power Supply Voltage

The maximum power supply voltage is 26.4 VDC. Applying a voltage
exceeding the rated range may damage the Sensor or cause burning.

Load

Do not use a load that exceeds the rated load.

Load Short-circuiting

Do not short-circuit the load, otherwise the Sensor may be damaged
or it may burn.

Connection without Load

Do not connect the power supply to the Sensor with no load
connected, otherwise the internal elements may explode or burn.
Always connect a load when wiring.

Do not use the product in atmospheres or environments that exceed
product ratings.

● Laser Warning Labels

Be sure that the correct laser warning label (enclosed) is attached for
the country of intended use of the equipment containing the
Photoelectric Sensor. Refer to the user's manual for details.

● Usage Environment

Water Resistance

The Sensor is rated IP67. Do not use it in water, in the rain, or
outdoors.

Ambient Environment

Do not install the product in the following locations. Doing so may
result in product failure or malfunction.

• Locations subject to excess dust and dirt

• Locations subject to direct sunlight

• Locations subject to corrosive gas

• Locations subject to organic solvents

• Locations subject to shock or vibration

• Locations subject to exposure to water, oil, or chemicals

• Locations subject to high humidity or condensation

● Designing

Power Reset Time

The Sensor is ready to operate 100 ms after the Sensor is turned ON.
If the load and Sensor are connected to independent power supplies
respectively, be sure to turn ON the Sensor before supplying power
to the load.

● Wiring

Avoiding Malfunctions

If using the Sensor with an inverter or servomotor, always ground the
FG (frame ground) and G (ground) terminals, otherwise the Sensor
may malfunction.

● Mounting

Mounting the Sensor

• If Sensors are mounted face-to-face, make sure that the optical
axes are not in opposition to each other. Otherwise, mutual
interference may result.

• Always install the Sensor carefully so that the aperture angle range
of the Sensor will not cause it to be directly exposed to intensive
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.

WARNING

CAUTION

Precautions for Safe Use

Precautions for Correct Use

E3Z-LT/LR/LL

10

Mounting Direction for Distance-settable Models

• Make sure that the sensing side of
the Sensor is parallel with the
surface of the sensing objects.
Normally, do not incline the
Sensor towards the sensing
object.

If the sensing object has a glossy
surface, however, incline the Sensor
by 5° to 10° as shown in the
illustration, provided that the Sensor
is not influenced by background
objects.

• If there is a mirror-like object below the Sensor, the Sensor may not
operate stably. Therefore, incline the Sensor or separate the
Sensor from the mirror-like object as shown below.

• Do not install the Sensor in the wrong direction. Refer to the
following illustration.

Install the Sensor as shown in the following illustration if each sensing
object greatly differs in color or material.

• The stability indicator may turn off in reaction to reflection from
background objects. In such cases, incline the Sensor by 10° as
shown in the illustration for more stable detection.

● Adjusting Distance-settable Models

Indicator Operation

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

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

● Inspection and Maintenance

Cleaning

Never use paint thinners or other organic solvents to clean the surface
of the product.

Sensing side

Surface of sensing
object

Glossy object

Sensing
object

Mirror-like object

Sensing
object

Moving direction

Moving direction

Moving
direction

Sensing
object

Sensing
object

Correct

Incorrect

Correct

Moving direction

Moving direction

Correct

Incorrect

Background object,
conveyor, etc.

Reflection

Approx. 10˚

ON

OFF

ON

OFF

ON

OFF

ON

OFF

Stability
(green)

Operation
(orange)

Stability
(green)

Operation
(orange)

L/ON

D/ON

BGS

NEAR region

Stable NEAR Stable FAR

FAR region

Unstable NEAR

Unstable FAR

Distance threshold

(settable)

E3Z-LT/LR/LL

11

Dimensions

Sensors

* 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.

(Unit: mm)

Tolerance class IT16 applies to dimensions in this datasheet unless otherwise specified.

Through-beam＊

Pre-wired Models
E3Z-LT61
E3Z-LT81

4 dia. vinyl-insulated round cable with
2 conductors (Conductor cross section:

0.2 mm

2

(AWG24), Insulator diameter:1.1 mm),

Standard length: 2 m

Two , M 3

Power indicator
(orange)

Lens

3.5 dia.

Emitter
E3Z-LT@1-L

12

20

20

3

2.8

25.4

12.7

2.1

31

31

10.8

10.8

Pins 2 and 4 are not
used.

Termi­nal No.

Specifi­cations

1+V
2 --­30 V
4 ---

M12 Pre-wired Connector
(E3Z-LT@@-M1J)

M12×1

1

3

2

4 dia. vinyl-insulated round
cable with 2 or 3 conductors,
Standard length: 0.3 m

4

Pre-wired Connector Models with
M8 connectors (Inquire)

4 dia. vinyl-insulated round
cable with 2 or 3 conductors,
Standard length: 0.3 m

M8

2

4

1

3

Pre-wired Connector Models with
M8 3-pin connectors (Inquire)

4 dia. vinyl-insulated round
cable with 2 or 3 conductors,
Standard length: 0.3 m

M8

×1

4

3

1

* The Emitter cable has two conductors and the

Receiver cable has three conductors.

Two , M 3

11

Stability indicator (green)

Sensitivity adjuster

Operation selector

Lens

Receiver
E3Z-LT@1-D

4.5

11.2

7.5

20

20

3

2.8

25.4

12.7

2.1

31

31

10.8

10.8

Operation Indicator

(orange)

4 dia. vinyl-insulated round cable with
3 conductors (Conductor cross section:

0.2 mm

2

(AWG24), Insulator diameter: 1.1 mm),

Standard length: 2m

Pin 2 is not used.

Termi-

nal No.

Specifi-

cations

1+V
2 --­30 V
4 Output

Through-beam＊

Standard Connector
Models
E3Z-LT66
E3Z-LT86

M8 4-pin connector

Two , M 3

Power indicator (orange)

9.75

Emitter
E3Z-LT@6-L

Lens 3.5 dia.

12

20

20

12.7

3

2.8

25.4

10.4

2.1

31

31

10.8

10.8

M8 4-pin connector

9.75

Lens

11

Stability indicator (green)

Sensitivity adjuster

Operation selector

Two , M 3

Receiver
E3Z-LT@6-D

Operation Indicator

(orange)

4.5

11.2

7.5

2.8

25.4

12.7

20

20

3

10.8

10.8

10.4

2.1

31

31

E3Z-LT/LR/LL

12

Stability indicator (green)

Receiver
Lens 7 dia.

Emitter
Lens 2.5 dia.

Sensitivity adjuster

Operation selector

4.5

11.2

7.5

Two , M 3

20

20

16.7

2.8

25.4

3

10.8

10.8

2.1

31

31

8

Operation Indicator

(orange)

4 dia. vinyl-insulated round cable with
3 conductors (Conductor cross section:

0.2 mm

2

(AWG24), Insulator diameter: 1.1 mm),

Standard length: 2m

Retro-reflective Models

Pre-wired Models
E3Z-LR61
E3Z-LR81

M12 Pre-wired Connector
(E3Z-LR@@-M1J)

M12×1

1

3

2

4 dia. vinyl-insulated round
cable with 3 conductors,
Standard length: 0.3 m

4

Pre-wired Connector Models with M8 connectors
(Inquire)

4 dia. vinyl-insulated round
cable with 3 conductors,
Standard length: 0.3 m

M8

24

1

3

Pre-wired Connector Models with M8 3-pin connectors
(Inquire)

4 dia. vinyl-insulated round
cable with 3 conductors,
Standard length: 0.3 m

M8

×1

4

3

1

Termi-

nal No.

Specifi­cations

1+V
2 --­30 V
4 Output

Retro-reflective Models

Standard Connector
Models
E3Z-LR66
E3Z-LR86

M8 connector

9.75

4.5

11.2

7.5

20

20

16.7

2.8

25.4

3

10.8

10.8

10.4

2.1

31

31

Emitter
Lens 2.5 dia.

8

Stability indicator (green)

Receiver
Lens 7 dia.

Sensitivity adjuster

Operation selector

Operation Indicator

(orange)

Two , M 3

Termi-

nal No.

Specifi­cations

1+V
2 --­30 V
4 Output

E3Z-LT/LR/LL

13

8.4

12

7.3

25.4

2.8

20

20

3

Two, M3

Operation Indicator

(orange)

Set distance adjuster

Operation selector

Stability indicator (green)

Receiver
Lens 7 dia.

Emitter
Lens 2.5 dia.

4-dia. vinyl-insulated round cable with
3 conductors (Conductor cross section:

0.2 mm

2

(AWG24), Insulator diameter:1.1 mm),

Standard length: 2 m and 0.5 m

2.1

31

31

8

10.8

10.8

18.7

M12×1

1

3

2

4 dia. vinyl-insulated round
cable with 3 conductors,
Standard length: 0.3 m

M12 Pre-wired Connector
(E3Z-LL@@-M1J)

4

Pre-wired Connector Models with
M8 connectors (Inquire)

4 dia. vinyl-insulated round
cable with 3 conductors,
Standard length: 0.3 m

M8

2 4

1

3

4 dia. vinyl-insulated round
cable with 3 conductors,
Standard length: 0.3 m

Pre-wired Connector Models with
M8 3-pin connectors (Inquire)

M8×1

4

3

1

Termi-

nal No.

Specifi­cations

1+V
2 --­30 V
4 Output

BGS Models

Pre-wired Models
E3Z-LL61
E3Z-LL81
E3Z-LL63
E3Z-LL83

Two , M 3

M8 connector

Operation Indicator

(orange)

Set distance adjuster

Operation selector

Stability indicator (green)

10.4

9.75

Receiver
Lens 7 dia.

Emitter
Lens 2.5 dia.

25.4

2.8

20

20

3

2.1

31

31

8

10.8

10.8

8.4

12

7.3

18.7

BGS Models

Standard M8
Connector Models
E3Z-LL66
E3Z-LL86
E3Z-LL68
E3Z-LL88

Termi-

nal No.

Specifi­cations

1+V
2 --­30 V
4Output

E3Z-LT/LR/LL

14

Accessories (Order Separately)

Slit

E39-S65A

32.2

32.2

20.2

20.2

0.2-mm-thick

10.4

10.4

0.5 dia.

12.7

Material

SUS301 stainless steel

Reflector

E39-R1

Materials

Reflective surface: Acrylic
Rear surface: ABS

34

40.3

52 59.9

2.7

8

1.6

7.5

Two, 3.5 dia.

7

Reflector

E39-R6

34

40

52 60

3.5

4.8

Two, 3.5 dia.

Materials

Reflective surface: Acrylic
Rear surface: ABS

37

R3.7

23

30

23

45

5.5

2.9
R3.7

Two ,

3.4 dia.

Reflector

E39-R12

Materials

Reflector: Polycarbonate (surface)

Acrylic (interior)

Frame: ABS

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

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Cat. No. CSM_E3Z-LT_LR_LL_DS_E_6_4 12/10 Note: Specifications are subject to change. © 2012 Omron Electronics LLC Printed in U.S.A.

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