1
CSM_E2J_DS_E_5_3
Long Sensing-distance Capacitive Separate Amplifier Proximity Sensor
E2J
Ordering Information
Sensors
Accessories (Order Separately)
Dust Covers A Dust Cover is not provided with the Sensor or Amplifier. Order a Dust Cover separately if required.
[Refer to Dimensions on page 6.]
* These dust covers are for protection against dust. They do not satisfy IP67. When attaching the Dust Cover, be sure to fully insert the connector into the Dust Cover.
Sensor I/O Connectors with Cables A Connector is not provided with the Sensor. Order a Connector separately if required.
[Refer to XS3.]
Note: Refer to Introduction to Sensor I/O Connectors/Sensor Controllers for details.
[Refer to Dimensions on page 6.]
Appearance Sensing distance (variable) Model
E2J-W10MA 1M
E2J-W20MA 1M
Flat,
Unshielded
10 mm
(4 to 10 mm)
20 mm
(8 to 20 mm)
Amplifier Units
Output configuration Model
DC 3-wire
NPN
Open-collector output
E2J-JC4A 2M
Appearance Application Application Model
Dust protection *
E2J-JC4A Amplifier Unit XS3Z-13
E2J-W@MA Sensor XS3Z-15
Appearance Application Cable
conductors
Cable
length Model Remarks
For cable extension 4 conductors
1 m XS3W-M421-401-R M8-screw-mounting cables
Robotics cables (vibration resistant)
Straight/Straight Model
2 m XS3W-M421-402-R
Flat Capacitive Sensor with Separate
Amplifier
Ideal for Mounting on Robot Hands.
• Flat head is only 5.5-mm thick.
• Robotics cable ensures improved flexibility.
• Operation indicator on the Sensor.
• Easy-to-use connector.
Be sure to read Safety Precautions on
page 5.
2
E2J
Ratings and Specifications
Sensors Amplifier Units
Model
Item E2J-W10MA E2J-W20MA
Sensing
distance 10 mm 20 mm
Sensing distance
adjustable range
4 to 10 mm 8 to 20 mm
Differential
travel 15% max. of sensing distance
Detectable
object Conductors and dielectrics
Standard
sensing object Grounded metal plate: 50 × 50 × 1 mm
Response
frequency 70 Hz min.
Indicators Detection indicator (red)
Ambient tem-
perature range
Operating/Storage: −10 to 55°C (with no icing or
condensation)
Ambient
humidity range
Operating/Storage: 35% to 85% (with no con-
densation)
Vibration
resistance
Destruction: 10 to 500 Hz, 2-mm double ampli-
tude or 150 m/s2 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 IP66 (IEC)
Connection
method
Pre-wired Connector Models (Robotics cable,
Standard cable length: 1m)
Weight
(packed state) Approx. 30 g Approx. 40 g
Materi-
als Case Heat-resistant ABS
Model
Item E2J-JC4A
Power supply
voltage 24 VDC ±20%, ripple (p-p): 10% max.
Current
consumption 30 mA max.
Con-
trol
out-
put
Load
current
NPN open-collector output, 100 mA max.
(30 VDC max.)
Residual
voltage 1 V max.
Indicators Operation indicator (orange)
Power indicator (green)
Number of turns
of sensitivity
adjustment
8 turns with an indicator
Protection
circuits
Load short-circuit protection, Surge suppres-
sor, Reverse polarity protection
Ambient temper-
ature range
Operating/Storage: −10 to 55°C (with no icing
or condensation)
Ambient
humidity range
Operating/Storage: 35% to 85% (with no con-
densation)
Temperature
influence
(Sensor with
Amplifier)
±25% max. of sensing distance at 23°C in the
temperature range of 0 to 40°C
Voltage influence ±1% max. of sensing distance at the rated volt-
age in the ±20% rated voltage range
Insulation
resistance
50 MΩ min. (at 500 VDC) between current-
carrying parts and case
Dielectric
strength
1,000 VAC, 50/60 Hz for 1 min between cur-
rent-carrying parts and case
Vibration
resistance
Destruction: 10 to 150 Hz, 1.5-mm double am-
plitude or 100 m/s2 for 2 hours each in X, Y,
and Z directions
Shock resistance Destruction: 300 m/s2 3 times each in X, Y, and
Z directions
Degree of
protection IP50 (IEC)
Connection
method Pre-wired Models (Standard cable length: 2 m)
Weight
(packed state) Approx. 60 g
Mate-
rials Case ABS
Accessories Mounting Bracket, Instruction manual
E2J
3
Engineering Data (Reference Value)
Sensing Area Sensing Distance Change by Sensing
Object (Typical)
E2J-W10MA
E2J-W10MA E2J-W20MA
Influence of Sensing Object (Iron)
E2J-W10MA E2J-W20MA E2J-W20MA
Influence of Ambient Temperature
E2J-W10MA E2J-W20MA
12
10
8
6
4
2
0
Grounded metal
50 × 50 mm
(t = 1 mm)
Non-grounded
metal
50 × 50 mm
(t = 1 mm)
Acryl
50 × 50 mm
(t = 10 mm)
Glass
150 × 180 mm
(t = 1.2 mm)
Silicon wafer
(2-inch)
Maximum sensing distance (mm)
− 8 −6 −4 −2 0 2 4 6 8
12
10
8
6
4
2
0
Y
X
Distance Y (mm)
Non-LED side of Sensor HeadLED side of Sensor Head
Grounded iron, 50 × 50 × 1 mm
Glass
Distance X (mm)
24
20
16
12
8
4
0
Y
X
− 16 −12 −8 −4 0 4 8 12 16
Distance Y (mm)
Non-LED side of Sensor HeadLED side of Sensor Head
Grounded iron, 50 × 50 × 1 mm
Glass
Distance X (mm)
0 20 40 60 80
24
20
16
12
8
4
X
d ×
d t = 1 mm
Side length of sensing object: d (mm)
(Max. adjustment)
(Min. adjustment)
Grounded
Grounded
Non-grounded
Non-grounded
Distance X (mm)
24
20
16
12
8
4
0
Grounded metal
50 × 50 mm
(t = 1 mm)
Non-grounded
metal
50 × 50 mm
(t = 1 mm)
Acryl
50 × 50 mm
(t = 10 mm)
Glass
150 × 180 mm
(t = 1.2 mm)
Silicon wafer
(2-inch)
Maximum sensing distance (mm)
−10 0 10 20 30 40 50
25
20
15
10
5
0
−5
−10
−15
−20
−25
Temperature (°C)
Variation rate (%)
−10 0 10 20 30 40 50
25
20
15
10
5
0
−5
−10
−15
−20
−25
Temperature (°C)
Variation rate (%)
4
E2J
I/O Circuit Diagrams
Amplifier Unit Nomenclature
Operation
mode Model Timing chart Output circuit
NO
E2J-W10MA
E2J-W20MA
+
E2J-JC4A
NC
Present
Not present
ON
OFF
ON
OFF
ON
OFF
Sensing object
Amplifier Unit
operation indicator
(orange)
Output transistor
Sensor detection
indicator (red)
24 VDC
0 V
Black
Blue
100 mA max.
Output
Brown
Load
Amplifier
main
circuit
Sensor
main
circuit
Amplifier Units
Sensor
Present
Not present
ON
OFF
ON
OFF
ON
OFF
Sensing object
Amplifier Unit
operation indicator
(orange)
Output transistor
Sensor detection
indicator (red)
NC
NO
NC
NO
Operation indicator (orange)
Sensitivity adjustment indicator
Sensitivity adjuster
Power indicator (green)
Sensor end
To power (pre-wired cable)
Output settings
Output transistor
ON when object is
detected.
Output transistor
ON when object is
not detected.
Operating mode selector
E2J
5
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 this product under ambient conditions that exceed the
ratings.
● Design
Influence of Surrounding Metal
When mounting the Sensor within a metal panel, ensure that the
clearances given in the following table are maintained. Failure to
maintain these distances may cause deterioration in the performance
of the Sensor.
Mutual Interference
When installing Sensors face-to-face or side-by-side, ensure that the
minimum distances given in the following table are maintained.
● Mounting
Handling
•Do not use the Sensor outdoors.
•Do not wire the Sensor alongside a high-tension or power line.
•Do not use portable telephones or transceivers near the Sensor. Be
sure to ground the Mounting Brackets.
•Do not use the Sensor in an environment where it will be exposed
to chemicals, particularly chemical solutions or oxidizing acids.
Influence of Static Electricity
Be sure to discharge static electricity before detecting objects that are
greatly affected by static electricity.
Mounting the Sensor
The maximum tightening torque that should be applied is 0.54 N·m.
Cable between Sensor and Amplifier Unit
•Be sure that the bending radius of the cable is more than 5 mm.
•Use the XS3W-M421-40@-R cable with connectors (M8-screw
mounting) as the extension cable.
The maximum cable length is 3 m (extension section: 2 m).
Sensitivity Adjustment
For information on the sensitivity adjustment, refer to Technical Guide
for Operation for information for Proximity Sensor.
WARNING
Precautions for Correct Use
Influence of Surrounding Metal (Unit: mm)
Dimension
Model A B
E2J-W10MA 10 20
E2J-W20MA 20 40
AB
Sensing surface
Metal object Be sure to
ground.
Metal object Be sure to
ground.
Sensing surface
Sensors Sensors
Mutual Interference (Unit: mm)
Dimension
Model A B
E2J-W10MA 20 30
E2J-W20MA 70 50
AB
6
E2J
Dimensions
Main Units
Sensors
Amplifier Units
Accessories (Order Separately)
Dust Cover
XS3Z-13 (for E2J-JC4A Amplifier Unit) XS3Z-15 (for E2J-W@MA Sensor)
(Unit: mm)
Tolerance class IT16 applies to dimensions in this data sheet unless otherwise specified.
E2J-W10MA
3
8.5
4.5
15.5
30
3.1
0.2
5.5
15.7
20
Two, 3.2 dia.
14±0.1
8
2.2
31.4
9 dia.
Two, M3
14±0.1
Detection indicator (red)
Sensing surface
4-dia. vinyl-insulated
round robotics cable,
Standard length: 1 m Mounting Hole Dimensions
3
8.5
4.5
20.5
40
16 24±0.1
0.2
5.5
25
4.3
30
2.2
Two, 3.2 dia.
31.4
9 dia.
Two, M3
24±0.1
Detection indicator (red)
Sensing surface
4-dia. vinyl-insulated
round robotics cable,
Standard length: 1 m
Mounting Hole Dimensions
E2J-W20MA
E2J-JC4A
12.2
12
22.5
22.5
13
3.9
9
29.3
0.5
15.9
59.1
8.3
6
11.5
0.4
8.5
3.4
4
9
23.4
3.4
16
16
35.5
(Four, R1.7)
2
Two, 3.2
dia.
Operation indicator (orange)
With Mounting
Bracket Attached
Power indicator (green)
Mounting Bracket (removable), Stainless steel (SUS304)
Two mounting holes
M8 connector
4-dia. vinyl-insulated round cable with 3
conductors (Conductor cross section:
0.2 mm2, Insulator diameter: 1.1 mm),
Standard length: 2 m
Material: polyvinyl chloride (red)
XS3Z-13 XS3Z-15 Sensor end
Terms and Conditions Agreement
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.
Warranties.
(a) Exclusive Warranty. Omron’s exclusive warranty is that the Products will be free from defects in materials and workmanship
for a period of twelve months from the date of sale by Omron (or such other period expressed in writing by Omron). Omron
disclaims all other warranties, express or implied.
(b) Limitations. OMRON MAKES NO WARRANTY OR REPRESENTATION, EXPRESS OR IMPLIED, ABOUT
NON-INFRINGEMENT, MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE OF THE PRODUCTS. BUYER
ACKNOWLEDGES THAT IT ALONE HAS DETERMINED THAT THE
PRODUCTS WILL SUITABLY MEET THE REQUIREMENTS OF THEIR INTENDED USE.
Omron further disclaims all warranties and responsibility of any type for claims or expenses based on infringement by the
Products or otherwise of any intellectual property right. (c) Buyer Remedy. Omron’s sole obligation hereunder shall be, at
Omron’s election, to (i) replace (in the form originally shipped with Buyer responsible for labor charges for removal or
replacement thereof) the non-complying Product, (ii) repair the non-complying Product, or (iii) repay or credit Buyer an amount
equal to the purchase price of the non-complying Product; provided that in no event shall Omron be responsible for warranty,
repair, indemnity or any other claims or expenses 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. Return of any Products by Buyer must be approved in writing by Omron before shipment. Omron Companies shall
not be liable for the suitability or unsuitability or the results from the use of Products in combination with any electrical or
electronic components, circuits, system assemblies or any other materials or substances or environments. Any advice,
recommendations or information given orally or in writing, are not to be construed as an amendment or addition to the above
warranty.
See http://www.omron.com/global/ or contact your Omron representative for published information.
Limitation on Liability; Etc.
OMRON COMPANIES SHALL NOT BE LIABLE FOR SPECIAL, INDIRECT, INCIDENTAL, OR CONSEQUENTIAL DAMAGES,
LOSS OF PROFITS OR PRODUCTION OR COMMERCIAL LOSS IN ANY WAY CONNECTED WITH THE PRODUCTS,
WHETHER SUCH CLAIM IS BASED IN CONTRACT, WARRANTY, NEGLIGENCE OR STRICT LIABILITY.
Further, in no event shall liability of Omron Companies exceed the individual price of the Product on which liability is asserted.
Suitability of Use.
Omron Companies shall not be responsible for conformity with any standards, codes or regulations which apply to the
combination of the Product in the Buyer’s application or use of the Product. At Buyer’s request, Omron will provide applicable
third party certification documents identifying ratings and limitations of use which apply to the Product. This information by itself
is not sufficient for a complete determination of the suitability of the Product in combination with the end product, machine,
system, or other application or use. Buyer shall be solely responsible for determining appropriateness of the particular Product
with respect to Buyer’s application, product or system. Buyer shall take application responsibility in all cases.
NEVER USE THE PRODUCT FOR AN APPLICATION INVOLVING SERIOUS RISK TO LIFE OR PROPERTY OR IN LARGE
QUANTITIES WITHOUT ENSURING THAT THE SYSTEM AS A WHOLE HAS BEEN DESIGNED TO ADDRESS THE RISKS,
AND THAT THE OMRON PRODUCT(S) IS PROPERLY RATED AND INSTALLED FOR THE INTENDED USE WITHIN THE
OVERALL EQUIPMENT OR SYSTEM.
Programmable Products.
Omron Companies shall not be responsible for the user’s programming of a programmable Product, or any consequence
thereof.
Performance Data.
Data presented in Omron Company websites, catalogs and other materials 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 user must correlate
it to actual application requirements. Actual performance is subject to the Omron’s Warranty and Limitations of Liability.
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 part numbers when published ratings or features are changed, or when significant construction changes are
made. However, some specifications of the Product may be changed without any notice. When in doubt, special part numbers
may be assigned to fix or establish key specifications for your application. Please consult with your Omron’s representative at
any time to confirm actual specifications of purchased Product.
Errors and Omissions.
Information presented by Omron Companies has been checked and is believed to be accurate; however, no responsibility is
assumed for clerical, typographical or proofreading errors or omissions.
2015.8
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 2015 All Right Reserved.