Distance-settable Photoelectric Sensor with Metal Case

E3S-CL CSM_E3S-CL_DS_E_3_1

Simply Set the Distance to Reliably

Detect Workpieces of Various Colors
• Reliable detection regardless of color, material, or size.
Black/white error of only 2% max. (E3S-CL1)
• Compact with a long sensing distance of 500 mm.
(E3S-CL2)
• Eliminates background influences with a differential travel of only 2%
max. (E3S-CL1)
• Sturdy metal body and a 6-turn adjuster with indicator.
• High degree of protection.

Be sure to read Safety Precautions on

page 7.

Ordering Information
Sensors (Refer to Dimensions on page 8.) Red light Infrared light
Appearance Sensing/Setting range Model
5 40 mm
Min. setting Setting range
40 to 200 mm
Max. setting
E3S-CL1 2M
5 Sensing range 200 mm

5 to 200 mm

5 50 mm Setting range
Min. setting

Max. setting 50 to 500 mm

E3S-CL2 2M
5 Sensing range 500 mm
5 to 500 mm

1
 E3S-CL
Ratings and Specifications

Sensing method Distance-settable

Item Model E3S-CL1 E3S-CL2
5 to 200 mm (white paper: 200 x 200 mm, 5 to 500 mm (white paper: 200 x 200 mm,
Sensing distance
setting distance: 200 mm) setting distance: 500 mm)
Setting range 40 to 200 mm (white paper: 200 x 200 mm) 50 to 500 mm (white paper: 200 x 200 mm)
Differential travel 2% max. of setting distance 10% max. of setting distance
Reflectivity characteris-
2% max. of setting distance 10% max. of setting distance
tics (black/white error) *1
Light source (wavelength) Red LED (700 nm) Infrared LED (860 nm)
Power supply voltage 10 to 30 VDC; ripple: 10% max.
Current consumption 35 mA max. 50 mA max.
Load power supply voltage: 30 VDC max., Load current: 100 mA max.
Residual voltage: NPN output: 1.2 V max.
Control output PNP output: 2 V max.
Open collector output (NPN/PNP depending on model)
Light-ON/Dark-ON selectable
Protection circuits Power supply reverse polarity protection, Output short-circuit protection, Mutual interference prevention
Response time Operate or reset: 1 ms max. Operate or reset: 2 ms max.
Distance setting Six-turn endless adjustor with an indicator
Ambient illumination Incandescent lamp: illumination on optical spot: 5,000 lx max.
(Receiver side) Sunlight: illumination on optical spot: 10,000 lx max.
Ambient temperature
Operating/storage: −25 to 55°C (with no icing or condensation)
range
Ambient humidity range Operating/storage: 35% to 85% (with no 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 hrs each in X, Y, and Z directions
Shock resistance Destruction: 500 m/s2 3 times each in X, Y, and Z directions
IP67 (IEC 60529) (in-house standards: oil-resistant),
Degree of protection IP67 (IEC 60529), NEMA: 6P (indoors only) *2
NEMA: 6P (indoors only) *2
Connection method Pre-wired (standard length: 2 m)
Weight (packed state) Approx. 170 g
Case Zinc die-cast
Ma- Operation panel PES (Polyether sulfone)
teri-
als Lens Methacrylic resin
Mounting bracket Stainless steel (SUS304)
Mounting bracket, 12 M4 hexagonal bolts (with spring and flat washers), Adjustment screwdriver, and Instruction
Accessories
manual
*1. Sensing distance error for standard white (90% reflective) and black (5% reflective) paper.
*2. NEMA: National Electrical Manufacturers Association

2
 E3S-CL
Engineering Data (Typical)
Operating Range
E3S-CL1 E3S-CL2

Distance Y (mm)
20 30
Distance Y (mm)

Distance setting: 40, 100, and 200 mm Distance setting: 300, 500 mm
Standard sensing object Standard sensing object
15 White paper, 200 x 200 mm White paper, 200 x 200 mm
20

10

200 mm 10
5

40 mm 100 mm 300 mm 500 mm

0 0
50 100 150 200 250 100 200 300 400 500
Distance
−5
X (mm) −10
Distance
X (mm)
−10
Y −20 Y
−15

X X
−20 −30

Sensing Object Size vs. Sensing Distance

E3S-CL1 E3S-CL2
300
Distance (mm)

600
Distance (mm)

White paper White paper

Setting
Black paper Black paper
distance
250 500 500 mm
Setting
distance
200 200 mm 400

150 300 300 mm

100 100 mm 200

50 100
40 mm
50 mm

0 10 20 30 40 50 0 10 20 30 40 50
Size of object (mm) Size of object (mm)

Spot Diameter vs. Sensing Distance

E3S-CL1 E3S-CL2
25 100
Spot diameter (mm)

Spot diameter (mm)

20 80

15 60

10 40

5 20

0 50 100 150 200 250 0 100 200 300 400 500

Distance (mm) Distance (mm)

3
 E3S-CL

Sensing Distance vs. Minimum Detectable Object Size

E3S-CL1 E3S-CL2
2.5 3.0

Min. sensing object (mm)

Min. sensing object (mm)

Sensing object: Stainless steel bar Sensing object: Stainless steel bar
Distance setting: Max. Distance setting: Max.
2.5
2.0

2.0
1.5

1.5

1.0
1.0

0.5
0.5

0 50 100 150 200 250 0 100 200 300 400 500 600
Distance (mm) Distance (mm)
Sensing Object Angle Characteristics
E3S-CL1 Vertical E3S-CL1 Horizontal
3 3
Change in sensing distance (%)

Change in sensing distance (%)

Sensing object: White paper, 200 x 200 mm Sensing object: White paper, 200 x 200 mm
Sensing distance: 200 mm Sensing distance: 200 mm
2 2

1 1

0 0

−1 Vertical −1 Horizontal
Detection Detection

Angle Angle
−2 +θ −2 +θ
−θ −θ
Detected Detected
−3 object −3 object
−40 −30 −20 −10 0 10 20 30 40 −40 −30 −20 −10 0 10 20 30 40
Angle θ (°) Angle θ (°)

E3S-CL2 Vertical E3S-CL2 Horizontal

6 3
Sensing object: White paper,
Change in sensing distance (%)

Change in sensing distance (%)

Sensing object: White paper, 200 x 200 mm

Sensing distance: 200 mm Horizontal 200 x 200 mm
Detection Sensing distance: 200 mm
4 2

Angle
2 1 +θ
−θ
Detected
0 0 object

Vertical
−2 −1
Detection

Angle
−4 +θ −2
−θ
Detected
−6 object −3
−40 −30 −20 −10 0 10 20 30 40 −40 −30 −20 −10 0 10 20 30 40
Angle θ (°) Angle θ (°)

4
 E3S-CL

Sensing Distance vs. Sensing Object Material

E3S-CL1
(Setting Distance of 200 mm using White (Setting Distance of 100 mm using White (Setting Distance of 40 mm using White Paper)
Paper) Paper)
Sensing distance (mm)

Sensing distance (mm)

Sensing distance (mm)
200 100 40

150 75 30

100 50 20

50 25 10

0 0 0
White paper

Plywood

Cardboard

Black paper

Black rubber

Mirror

White paper

Plywood

Cardboard

Black paper

Black rubber

Mirror
White paper

Plywood

Cardboard

Black paper

Black rubber

Mirror
Material Material Material

E3S-CL2
(Setting Distance of 500 mm using White (Setting Distance of 300 mm using White (Setting Distance of 50 mm using White Paper)
Paper) Paper)
Sensing distance (mm)

Sensing distance (mm)

Sensing distance (mm)

500 300 50

400 40

200
300 30

200 20
100

100 10

0 0 0
White paper

Plywood

Cardboard

Black paper

Black rubber

Mirror

White paper

Plywood

Cardboard

Black paper

Black rubber

Mirror

White paper

Plywood

Cardboard

Black paper

Black rubber

Mirror
Material Material Material

Close-range Characteristics
E3S-CL1 E3S-CL2
Distance Distance
Sensing distance (mm)
Sensing distance (mm)

setting 500 setting

200 max. max.
Distance Distance
setting setting
min. min.
400
150

300

100
200

50
33.7 mm 32.7 mm 100

23.7 mm 36 mm 33 mm
2.7 mm 1.4 mm 11.4 mm 0.7 mm 0.4 mm 6.2 mm 2.6 mm
0 0
White paper Black paper White paper Black paper
Material Material

5
 E3S-CL
I/O Circuit Diagrams
NPN Output
Operation Operation
Model Timing charts Output circuit
mode selector
Incident light
No incident light
Operation ON
indicator
OFF L side
Light-ON (orange) Stability Brown 10 to 30 VDC
Output ON (LIGHT ON) indicator PNP output
transistor OFF (green) ZD
transistor Load Load current
Load Operate Photo-
Light electric Black
E3S-CL1 (relay) Reset NPN and PNP
indicator Sensor Control output
Main output selector
E3S-CL2 Incident light
(orange)
Circuit *
NPN output
No incident light ZD
transistor Blue 0V
Operation ON
indicator
OFF D side
Dark-ON (orange)
Output ON (DARK ON) *Set the NPN and PNP output selector to NPN.
transistor OFF
Load Operate
(relay) Reset

PNP Output
Operation Operation
Model Timing charts Output circuit
mode selector

Incident light
No incident light
Operation ON
indicator L side
OFF Brown
Light-ON (orange) Stability 10 to 30 VDC
Output ON (LIGHT ON) indicator
transistor OFF PNP output ZD
(green)
transistor
Load Operate Photo-
Light electric * Black
E3S-CL1 (relay) Reset NPN and PNP
indicator Sensor
Control output
(orange) Main output selector
E3S-CL2 Circuit
Incident light NPN output Load Load current
ZD
No incident light transistor Blue 0V
Operation ON
indicator D side
OFF
Dark-ON (orange) *Set the NPN and PNP output selector to PNP.
Output ON (DARK ON)
transistor OFF
Load Operate
(relay) Reset

Nomenclature
Operation Panel
Output Selector
Cover 1. Set the selector to NPN for NPN output.
2. Set the selector to PNP for PNP output.

Operation Selector
1. Set the selector to L-ON for ON light-ON operation.
2. Set the selector to D-ON for ON dark-ON operation.
Stability indicator
(green) Light indicator Setting Distance Adjuster
(orange)
1. The sensing distance will increase when the adjuster is turned
clockwise (toward Max.) and will decrease when the knob is turn
counterclockwise.
Output
selector 2. The adjustment can be turned up to 6 times clockwise or
Setting distance counterclockwise to set the sensing distance. The number of turns
indicator will be displayed by the indicator.
Operation
selector
Setting distance
adjuster

6
 E3S-CL
Safety Precautions
Refer to Warranty and Limitations of Liability.
WARNING
This product is not designed or rated for ensuring • Also, mount the Sensor so that it is not aligned with extreme
safety of persons either directly or indirectly. changes in color or materials, as shown below.
Do not use it for such purposes.

Precautions for Correct Use

Do not use the product in atmospheres or environments that exceed
product ratings.
● Designing
Cable
The E3S-CL2 uses an oil-resistive cord to ensure oil resistivity. Direction of Direction of
movement movement

● Mounting • Mount the Sensor so that sunlight, fluorescent light, incandescent

Mounting light, or other strong sources of light do not enter the directional
angle of the Sensor.
Mounting Direction
• Mount the Sensor so that the sensing Precautions
face runs parallel to the surface of the • When mounting the Sensor, do not hit the Sensor with a hammer,
object being detected as shown or the Sensor will lose its watertightness.
below, and not at an angle. • Use M4 screws to mount the Sensor.
Sensing side • The tightening torque of each screw must be 1.2 N·m maximum.
● Others
Surface of
sensing object Oil and Chemical Resistivity (E3S-CL2)
The E3S-CL2 was tested for resistance to the oils given in the
If detecting a shiny object, however, following table. Refer to the information in the table when deciding
mount the Sensor so that the sensing which type of oil to use. However, performance may be affected by
face is at an angle of between 5° and certain types of oil.
10° of the surface of the object being
detected as shown below, and check Test oil Kinematic viscosity
Product name pH
classification (mm2/s (cst)) at 40°C
to be sure that there is no
Lubricating oil Velocity No.3 2.02
interference from the background.
Water insoluble ---
Yushiron Oil No. 2 ac Less than 10
Shiny object machining oil
• If stable operation is not possible near
Yushiroken EC50T-3 7 to 9.5
a mirror surface, mount the Sensor at
Water soluble Yushiron Lubic HWC68 7 to 9.9
an angle as shown below, and separate the Sensor as far as ---
machining oil Gryton 1700D 7 to 9.2
possible from the mirror surface.
Yushiroken S50N 7 to 9.8
Note: 1. The E3S-CL2 maintained a minimum insulation resistance of 100 MΩ
after it was dipped in all the above oils at a temperature of 50°C for 240
hours.
Sensing 2. When using the E3S-CL2 in environments subject to oils other than
object
those listed above, use the figures for kinematic viscosity and ph
Mirror surface
values from the table as general guidelines. Additives and other
substances contained in oils may affect the E3S-CL2. Be sure to
• Mount the Sensor so that it is not aligned with the direction of consider this before use.
movement of the sensing object, as shown below.

Sensing
Sensing object
Sensing object
object
Direction of
Direction of
movement
Direction of movement
movement

7
 E3S-CL
Dimensions (Unit: mm)
Tolerance class IT16 applies to dimensions in this datasheet unless otherwise specified.

E3S-CL1
E3S-CL2
23.8
With Mounting Bracket Attached 7.3

6.2 11.7
4.2 Stainless steel
9.2

4.2
20
12 Mounting Holes
19.7
Two, M4

Light indicator 25.4

Stability indicator 40

Receiver
Two, M4 hex bolts 15.4 1.1 37.2 Two, M4
with slit lock washers

16 E3S-CL1:
42.6 4-dia. vinyl-insulated round cable with 3 conductors
54.5 16.5 (Conductor cross section: 0.2 mm2 (AWG24),
Insulator diameter: 1.1 mm),
16.1 Standard length: 2 m
9.1
28 E3S-CL2:
21 2 4-dia. vinyl-insulated round cable with 3 conductors
Emitter, optical axis (Conductor cross section area: 0.2 mm2 (AWG24),
Insulator diameter: 1.2 mm),
Detecting axis Standard length: 2 m
40
44.7

Note: The output selector, operation selector, and distance setting adjuster are located inside the cover.

8
 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.

2008.11
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 2008 All Right Reserved.