1
CSM_E3S-LS3__DS_E_3_1
PCB Sensors
E3S-LS3@
Reliable Detection Unaffected by PCB
Holes or Notches
• High-limit E3S-LS3@ is suitable for incorporation in devices.
• Wide-range E3S-LS3@W is ideal for detecting tall components
mounted on boards.
• Timer function models available.
Be sure to read Safety Precautions on
page 4.
Ordering Information
Sensors
* For white paper: 80 × 80 mm.
Sensing method Appearance Connection
method Sensing distance Timer
function Model
NPN output PNP output
Convergent-
reflective Pre-wired (2 m) * Without E3S-LS3N 2M E3S-LS3P 2M
With E3S-LS3NT 2M E3S-LS3PT 2M
* Without E3S-LS3NW 2M E3S-LS3PW 2M
With E3S-LS3NWT 2M E3S-LS3PWT 2M
Red light
20 to 35 mm
10 to 60 mm
2
E3S-LS3@
Ratings and Specifications
* For 80 × 80 mm.
Engineering Data (Typical)
Sensing method Convergent-reflective
Item Model E3S-LS3N(T)/-LS3P(T) E3S-LS3NW(T)/-LS3PW(T)
Sensing
distance White paper *20 to 35 mm 10 to 60 mm
Black paper *20 to 30 mm 15 to 50 mm
Light source (wavelength) Red LED (660 nm)
Power supply voltage 12 to 24 VDC±10%, ripple (p-p) 10% max.
Current consumption 25 mA max.
Control output
Load power supply voltage: 24 VDC max.,
Load current: 100 mA max., (Residual voltage: 1 V max. for NPN output or 2 V max. for PNP output)
Open collector output configuration: NP N or PNP output depending on the model,
Operating mode: Light-ON
Response time Operate or reset: 1 ms max.
Timer function
(only models with timer function) OFF-delay range: 0.1 to 1.0 s (adjustable)
Ambient illumination
(Receiver side) Incandescent lamp: 5,000 lux max.
Ambient temperature range Operating: −10 to 55°C (with no icing or condensation)
Storage: −25 to 70°C (with no icing or condensation)
Ambient humidity range Operating: 35% to 85% (with no condensation)
Storage: 35% to 95% (with no condensation)
Insulation resistance 20 MΩ min. (at 500 VDC)
Dielectric strength 1,000 VAC at 50/60 Hz for 1 minute
Vibration resistance Destruction: 10 to 55 Hz with a 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
Degree of protection IEC 60529 IP40
Connection method Pre-wired (standard length: 2 m)
Weight (packed state) Approx. 80 g
Material Case ABS (Acrylonitril Butadiene Styrene)
Lens Methacrylic resin
Accessories Instruction manual, M3 screws, Adjustment screwdriver (only models with timer function)
Sensing Distance vs. Materials
0
10
20
30
40
50
60
70
80
E3S-LS3@W(T)
E3S-LS3@(T)
Black
PWB
White
paper Black
paper PWB
with green
resist
SUS
Sensing distance (mm)
Materials
3
E3S-LS3@
I/O Circuit Diagrams
NPN Output
Operating Range (Left and Right) Operating Range (Up and Down)
Excess Gain vs. Set Distance Spot Diameter vs. Sensing Distance
(E3S-LS3@(T), E3S-LS3@W(T) (Common)
−15
−12
−9
−6
−3
00 10203040506070
3
6
9
12
15
E3S-LS3@W(T)
Y
X
E3S-LS3@(T)
Set distance Y (mm)
Set distance X
(
mm
)
Sensing object: White paper, 80 × 80 mm
010203040506070
15
12
9
6
3
0
−3
−6
−9
−12
−15
Y
X
E3S-LS3@(T)
E3S-LS3@W(T)
Set distance Y (mm)
Set distance X
(
mm
)
Sensing object: White paper, 80 × 80 mm
E3S-LS3@(T)
100
10
1
0.1 0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80
E3S-LS3@W(T)
Excess gain ratio (times)
Set distance
(
mm
)
Operating
level
Sensing object: White paper, 80 × 80 mm
010 20 30 40 50 60 7
0
5
10
15
20
25
30
35
d
L
Spot diameter (mm)
Set distance (mm)
Direction L
Direction d
Model Operation
mode Timing charts Output circuit
E3S-LS3N
E3S-LS3NW
Light-ON
E3S-LS3NT
E3S-LS3NWT
Incident light
No incident light
ON
OFF
ON
OFF
Operation indicator
(orange)
Output transistor
Operation
indicator
(orange)
12 to 24 VDC
0 V
Brown
Black
Blue
OUT
Photo-
electric
Sensor
main
circuit
Load
Z
T
T: OFF-delay timer (0.1 to 1.0 s)
Incident light
No incident light
ON
OFF
ON
OFF
Operation indicator
(orange)
Output transistor
4
E3S-LS3@
PNP Output
Safety Precautions
Refer to Warranty and Limitations of Liability.
This product is not designed or rated for ensuring
safety of persons either directly or indirectly.
Do not use it for such purposes.
Do not use the product in atmospheres or environments that exceed
product ratings
Dimensions
Model Operation
mode Timing charts Output circuit
E3S-LS3P
E3S-LS3PW
Light-ON
E3S-LS3PT
E3S-LS3PWT
Incident light
No incident light
ON
OFF
ON
OFF
Operation indicator
(orange)
Output transistor
Operation
indicator
(orange)
Photo-
electric
Sensor
main
circuit
Brown
Black
Blue
12 to 24 VDC
Load
OUT
0 V
T
T: OFF-delay timer (0.1 to 1.0 s)
Incident light
No incident light
ON
OFF
ON
OFF
Operation indicator
(orange)
Output transistor
WARNING
Precautions for Correct Use
(Unit: mm)
Tolerance class IT16 applies to dimensions in this datasheet unless otherwise specified.
E3S-LS3N(T)/E3S-LS3P(T)
E3S-LS3NW(T)/E3S-LS3PW(T)
14.2
10
10
11.8
3
8.5 dia.
0.3
5.4
19.3
34
328
Two, M3 Mounting Holes
4-dia.vinyl-insulated round cable with 3 conductors
(Conductor cross section: 0.2 mm2, Insulator diameter: 1.1 mm),
Standard length: 2 m
* The timer adjuster is only for models with the timer function.
Timer adjuster *Operation Indicator (orange)
Receiver Emitter
28
Two, 3.6 dia.
Mounting Holes
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.
