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Long-distance type
E2K-C
CSM_E2K-C_DS_E_5_3
Long-distance Capacitive Sensor
with Adjustable Sensitivity
• CE Marking for DC 3-wire models and AC/DC 2-wire models.
• Noise-resistant models are also available for environments with
strong noise.
For the most recent information on models that have been certified for
safety standards, refer to your OMRON website.
Be sure to read Safety Precautions on
page 7.
Ordering Information
Sensors [Refer to Dimensions on page 8.]
Model
Appearance
Standard Models
Sensing distance
Unshielded
Operation mode
NO
NC
DC 3-wire, NPN
E2K-C25ME1 2M
E2K-C25ME2 2M
25 mm
DC 3-wire, PNP
[3 to 25 mm *]
E2K-C25MF1 2M
E2K-C25MF2 2M
AC 2-wire
E2K-C25MY1 2M
E2K-C25MY2 2M
DC 3-wire, NPN
E2K-C20MC1 2M
E2K-C20MC2 2M
AC/DC 2-wire
E2K-C20MT1 2M
E2K-C20MT2 2M
34 dia.
20 mm
[3 to 20 mm *]
Noise-resistant Models
Output configuration
* Adjustable range
Accessories (Order Separately)
Mounting Brackets A Mounting Bracket is provided.
[Refer to Dimensions on page 8.]
Appearance
Model
Y92E-A34
Quantity
1
Remarks
Provided with the product.
1
E2K-C
Ratings and Specifications
Standard Models
Item
Model
[email protected]
[email protected]
E2K-C25MY1
E2K-C25MY2
Sensing distance
25 mm
*
Sensing distance
3 to 25 mm
adjustable range
Detectable object Conductors and dielectrics
Standard
sensing object
Grounded metal plate: 50 × 50 × 1 mm
Differential travel 15% max. of sensing sensing distance (when adjusted to 25 mm ±10% with standard sensing object)
Response
frequency
70 Hz
10 Hz
Power supply
voltage
(operating
voltage range)
12 to 24 VDC (10 to 30 VDC), ripple (p-p): 10% max.
100 to 220 VAC (90 to 250 VAC), 50/60 Hz
Current
consumption
E and F Models: 10 mA max. at 12 VDC, 16 mA max. at 24 VDC
Leakage current
Y Models: 1 mA max. at 100 VAC (50/60 Hz) with output turned OFF, 2 mA max. at 200 VAC (50/60 Hz) with output turned
OFF
Control
output
Load
current
200 mA max.
5 to 200 mA (resistive load)
Residual
voltage
2 V max. (Load current: 200 mA, Cable length: 2 m)
Refer to Engineering Data on page 4.
Detection indicator (red)
Operation indicator (red)
Indicators
Operation mode
(with sensing
E1, F1, and Y1 Models: NO
Refer to the timing charts under I/O Circuit Diagrams on page 5 for details.
object approach- E2, F2, and Y2 Models: NC
ing)
Protection
circuits
Reverse polarity protection, Surge suppressor
Ambient temperature range
Operating/Storage: −25 to 70°C (with no icing or condensation)
Ambient
humidity range
Operating/Storage: 35% to 95% (with no condensation)
Temperature
influence
±15% max. of sensing distance at 23°C in the temperature range of −10 to 55°C
±25% max. of sensing distance at 23°C in the temperature range of −25 to 70°C
Voltage influence
±2% max. of sensing distance at the rated voltage in rated
voltage ±15% 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 current-carrying
parts and case
Vibration
resistance
Destruction: 10 to 55 Hz, 1.5-mm double amplitude for 2 hours each in X, Y, and Z directions
Surge suppressor
±2% max. of sensing distance at the rated voltage in rated
voltage +20%, −10% range at 100 VAC, ±20% range at 200
VAC
1,500 VAC, 50/60 Hz for 1 min between current-carrying
parts and case
Shock resistance Destruction: 500 m/s2 10 times each in X, Y, and Z directions
Degree of
protection
IEC 60529 IP66
Connection
method
Pre-wired Models (Standard cable length: 2 m)
Weight
(packed state)
Approx. 200 g
Case
MateSensing
rials
surface
Heat-resistant ABS
Accessories
Mounting Bracket, M4 screws, Instruction manual
* The set distances are sensing distances applicable to standard sensing objects. Refer to Engineering Data on page 4 for other materials.
2
E2K-C
Noise-resistant Models
Item
Model
E2K-C20MC1
E2K-C20MC2
E2K-C20MT1
E2K-C20MT2
Sensing distance
20 mm
*1
Sensing distance
3 to 20 mm
adjustable range
Detectable object Conductors and dielectrics
Standard
sensing object
Grounded metal plate: 50 × 50 × 1 mm
Differential travel 15% max. of sensing distance (when adjusted to 20 mm ±10% with standard sensing object)
Response
frequency *2
40 Hz
AC power: 25 Hz, DC power: 40 Hz
Power supply
voltage
(operating
voltage range)
12 to 24 VDC (10 to 30 VDC), ripple (p-p): 10% max.
24 to 240 VAC (20 to 250 VAC), 50/60 Hz; 24 to 240 VDC (20
to 250 VDC)
Current
consumption
13 mA max. at 24 VDC
Leakage current
Control
output
-----
1.5 mA max. at 24 VDC, 1.7 mA max. at 110 VAC (50/60 Hz),
2.5 mA max. at 250 VAC (50/60 Hz)
Refer to Engineering Data on page 4.
Load
current
250 mA max.
5 to 200 mA (resistive load)
Residual
voltage
2.5 V max. (Load current: 250 mA, Cable length: 2 m)
AC power: 10 V max., DC power: 8 V max.
Refer to Engineering Data on page 4.
Indicators
Operation indicator (yellow)
Operation mode
(with sensing ob- C1/T1 Models: NO
ject approachC2/T2 Models: NC Refer to the timing charts under I/O Circuit Diagrams on page 5 for details.
ing)
Protection
circuits
Reverse polarity protection, Load short-circuit protection
Ambient temperature range
Operating/Storage: −25 to 70°C (with no icing or condensation)
Ambient
humidity range
Operating/Storage: 35% to 95% (with no condensation)
Temperature
influence
±15% max. of sensing distance at 23°C in the temperature range of −10 to 55°C
±25% max. of sensing distance at 23°C in the temperature range of −25 to 70°C
---
Voltage influence ±2% max. of sensing distance at the rated voltage in rated voltage ±15% 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 current-carrying
parts and case
Vibration
resistance
Destruction: 10 to 55 Hz, 1.5-mm double amplitude for 2 hours each in X, Y, and Z directions
1,500 VAC, 50/60 Hz for 1 min between current-carrying
parts and case
Shock resistance Destruction: 500 m/s2 10 times each in X, Y, and Z directions
Degree of
protection
IEC 60529 IP65
Connection
method *3
Pre-wired Models (Standard cable length: 2 m)
Weight
(packed state)
Approx. 240 g
Case
MateSensing
rials
surface
PBT
Accessories
Mounting Bracket, M4 screws, Instruction manual
*1. The set distances are sensing distances applicable to standard sensing objects. Refer to Engineering Data on page 4 for other materials.
*2. The response frequency is an average value.
*3. Only 2-m cables are available. Use a cable with a conductor cross section of 0.5 mm2 or greater to extend the cable.
3
E2K-C
Sensing Distance Change by Sensing Object
E2K-C20M
E2K-C25M@@
E2K-C20M@@
Distance X (mm)
Noise voltage (Vp-p)
Common Mode Continuous Noise
Distance X (mm)
Engineering Data (Reference Value)
160
E2K-C20M
140
120
100
OMRON product
(E2K-C25M)
80
25
25
20
20
15
15
10
10
5
5
0
0
60
40
Residual Output Voltage
Residual output voltage
ON
200
ON
80
150
V
60
Load
50
40
A
30
50
20
10
OFF
50 100 200
Load current (mA)
Load voltage (V)
Load voltage (V)
80
10
OFF
50 100 200
Load current (mA)
60
0
Residual
output
voltage
200
A
30
ON
Lavan plate
(160 × 120 × t15)
Resin pellet
(Duracon)
Glass (200 × 50 × t3)
Salt
Phenolic resin
(50 × 50 × 50)
Neoprene rubber
(200 × 50 × t3)
Flour
2.5
2.0
1.5
AC power
V
DC power
Load
100
100
VAC
A
50
Residual Load Voltage
20
80 100 120 140 160 180 200 220 240 260
Power supply voltage (V)
1.0
Load
50
V
E2K-C20MT
70
A
200
VAC
0.5
V
Residual Load Voltage
OFF
10
0
1
A
OFF
5
150
V
40
Sugar
1.0
ON
90
2.0
200
VAC
E2K-C20MT at 200 VAC
Residual
output
voltage
2.5
0.5
Residual
Load
Voltage
0
1
E2K-C20MT at 100 VAC
100
Load
100
100
VAC
A
3.0
1.5
V
70
Residual
10 Load
Voltage
0
1
5
Leakage current (mA)
Residual output
voltage
E2K-C25MY
Leakage current (mA)
Load voltage (V)
E2K-C25MY at 200 VAC
Load voltage (V)
90
500 ml milk (pure water)
Leakage Current
E2K-C25MY at 100 VAC
100
Standard sensing object
(50 × 50 × t1)
Lavan plate
(160 × 120 × t15)
Resin pellet
(Duracon)
Glass (200 × 50 × t3)
Salt
1000
Frequency (kHz)
Phenolic resin
(50 × 50 × 50)
Neoprene rubber
(50 × 50 × t5)
100
Flour
10
Sugar
1
500 ml milk (pure water)
0
Standard sensing object
(50 × 50 × t1)
20
OFF
5
10
50 100 200
250
Load current (mA)
0
OFF
1
5
10
50 100 200
250
Load current (mA)
0
20
50
100
150
200
250
Power supply voltage (V)
4
Sensing Object Size vs. Sensing Distance
Sensing area
E2K-C25M@@
E2K-C20M@@
Sensing distance X (mm)
Distance X (mm)
Sensing Area (Grounded Metal Plate)
E2K-C25M@@
Distance X (mm)
E2K-C
Standard
sensing X
30 object
Sensitivity
adjustment
Sensing
head
25
25 mm
30
25
Grounded metal plate
Square
sensing
object
20
20
20 mm
Ungrounded
metal plate (1 t)
X
15
15
15 mm
10
Sensing
head
Y
30
25
20
15
10
10 mm
5
Standard sensing object X
35
10
5
5 mm
Phenolic resin plate (6 t)
0
5
0
Sensing head
Sensing head
−25 −20 −15 −10 −5
0
5
0
10 15 20 25
Distance Y (mm)
10
20
30
40
50
60
70
80
90 100
−20 −15 −10
−5
0
5
10 15 20
Distance Y (mm)
Side length of sensing object (mm)
I/O Circuit Diagrams
DC 3-Wire Models (NPN)
Operation
mode
Model
Timing chart
Sensing
object
NO
E2K-C25ME1
Present
Not present
Load (between brown
and black leads)
E2K-C20MC1
OFF
NC
E2K-C20MC2
Load
(between brown
and black leads)
4.4 kΩ
Black*1
Output*2
Tr
Blue
Operate
0V
Reset
High
Low
*1. Load current: 200 mA max.
*2. When a transistor is connected.
ON
OFF
Brown
Present
12 to 24 VDC
Not present
Operate
Load
Reset
ON
Operation
Indicator (yellow)
Sensing
object
Proximity
Sensor
main
circuit
Not present
Output voltage (between
black and blue leads)
Load
(between brown
and black leads)
Load
Low
Present
Detection
indicator (red)
NO
High
ON
Load (between brown
and black leads)
Sensing
object
+V
Reset
Output voltage (between
black and blue leads)
Sensing
object
E2K-C25ME2
Brown
Operate
Detection
indicator (red)
NC
Output circuit
OFF
Proximity
Sensor
main
circuit
*
Black
Present
Not present
Blue
Operate
0V
Reset
ON
Operation
Indicator (yellow)
OFF
* Load current: 250 mA max.
DC 3-Wire Models (PNP)
Operation
mode
Model
Timing chart
Sensing
object
Load (between blue
and black leads)
NO
E2K-C25MF1
Present
Not present
NC
E2K-C25MF2
High
Low
ON
OFF
Proximity
Sensor
main
circuit
Tr
*2
4.7 kΩ
Black*1
Present
Load
Not present
Operate
Output voltage (between
black and brown leads)
Detection
indicator (red)
+V
Reset
Detection
indicator (red)
Load (between blue
and black leads)
Brown
Operate
Output voltage (between
black and brown leads)
Sensing
object
Output circuit
Blue
0V
Reset
High
Low
*1. Load current: 200 mA max.
*2. When a transistor is connected.
ON
OFF
5
E2K-C
AC 2-Wire Models
Operation
mode
Model
Timing chart
Sensing
object
NO
E2K-C25MY1
Output circuit
Present
Not present
Operate
Load
Brown
Load
Reset
Operation
indicator (red)
Sensing
object
NC
E2K-C25MY2
ON
Proximity
Sensor
main
circuit
OFF
Blue
Present
Not present
Operate
Load
Reset
Operation
indicator (red)
ON
OFF
AC/DC 2-Wire Models
Operation
mode
Model
Timing chart
Sensing
object
NO
E2K-C20MT1
Load
Operate
Operation
indicator (yellow)
NC
E2K-C20MT2
Brown*
Present
Load
Not present
Reset
Sensing
object
Output circuit
ON
Proximity
Sensor
main
circuit
Power
supply
Blue
24 to 240 VDC
24 to 240 VAC
OFF
Present
Not present
Load
Operate
Reset
Operation
indicator (yellow)
ON
OFF
* Load current: 200 mA max.
Note: The load can be connected to either the +V or
0 V side.
There is no need to be concemed about the
polarity (brown/blue) of the Proximity Sensor.
6
E2K-C
Safety Precautions
Refer to Warranty and Limitations of Liability.
WARNING
Effects of a High-frequency Electromagnetic Field
This product is not designed or rated for ensuring
safety of persons either directly or indirectly.
Do not use it for such purposes.
The E2K-C may malfunction if there is an ultrasonic washer, highfrequency generator, transceiver, portable telephone or inverter
nearby.
For major measures, refer to Noise of Warranty and Limitations of
Liability for Photoelectric Sensors.
Precautions for Correct Use
Do not use this product under ambient conditions that exceed the
ratings.
● Design
Influence of Surrounding Metal
When mounting a Proximity Sensor, be sure to provide a distance of
80 mm min. from surrounding metal objects to prevent the Sensor
from being affected by metal objects other than the sensing object.
When mounting the Sensor with the L-shaped Mounting Bracket, be
sure to provide a distance of 20 mm min. between the face of the
sensing head and the Mounting Bracket.
80 mm min.
Be sure to
ground.
80 mm
min.
80 mm
min.
Metal
Surrounding
conductive
objects
Sensing
surface
• Sensing Object Material
The E2K-C can detect almost any type of object. The sensing
distance of the E2K-C, however, will vary with the electrical
characteristics of the object, such as the conductance and
inductance of the object, and the water content and capacity of the
object. The maximum sensing distance of the E2K-C will be
obtained if the object is made of grounded metal.
• Indirect Detection
To detect objects in metal containers, each metal container must
have a nonmetallic window.
Power ON Conditions
Surrounding
conductive
objects
20 mm min.
Sensing Objects
80 mm
min.
Mutual Interference
When installing Sensors face-to-face or side-by-side, ensure that the
minimum distances given in the following table are maintained.
Face-to-face Mounting
Parallel Mounting
Sensing is enabled within 200 ms for the E2K-C20M@@. Design the
system so that the power for the Sensor is turned ON before the
power for the load.
● Miscellaneous
Organic Solvents
The Sensor has a case made of heat-resistant ABS resin or PBT
resin. Be sure that the case is free from organic solvents or solutions
containing organic solvents.
● Mounting
Sensitivity Adjustment
For information on the sensitivity adjustment, refer to Technical Guide
for Operation for information for Proximity Sensor.
B
A
Mutual Interference (Unit: mm)
Dimension
Model
E2K-C25M@@
E2K-C20M@@
A
B
100
100
105
7
E2K-C
(Unit: mm)
Dimensions
Tolerance class IT16 applies to dimensions in this data sheet unless otherwise specified.
Sensors
E2K-C25M@@
82
Screw hole for sensitivity
adjustment
7
Cap
13
+
34 dia.
20
Cable clamp
E Models: 6-dia. vinyl-insulated round cable
with 3 conductors (Conductor cross
section: 0.5 mm2, Insulator diameter:
1.9 mm), Standard length: 2 m
Y Models: 6-dia. vinyl-insulated round cable
with 2 conductors (Conductor cross
section: 0.5 mm2, Insulator diameter:
1.9 mm), Standard length: 2 m
Indicator*
* E and F Models: Detection indicator (red)
Y Models: Operation indicator (red)
E2K-C20M@@
81
18
Operation indicator (yellow)
Sensitivity adjuster
9
34 dia.
C Models: 5.5-dia. vinyl-insulated round cable with 3 conductors
(Conductor cross section: 0.5 mm2, Insulator
diameter: 1.5 mm), Standard length: 2 m
T Models: 5.5-dia. vinyl-insulated round cable with 2 conductors
(Conductor cross section: 0.5 mm2, Insulator
diameter: 1.5 mm), Standard length: 2 m
Accessories (Order Separately)
Mounting Bracket (Accessory)
Y92E-A34
45
43
5.2
6.3
Two elliptic holes for bracket mounting
R2.6
2
35
15
42
23.5
Two, M4 Sensor clamping screws
With Mounting Bracket Attached
54.4
E2K
Sensor mounting hole
Material: Polyacetal
Two, 5.5-dia. mounting holes*
51
30
30
14
45
Note: Provided with the product.
* The holes are not drilled
completely through. Drill through
the holes before using them.
6
35
57.6
8
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.
2016.1
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 2016 All Right Reserved.
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