Data Sheet

Cylindrical Proximity Sensor
E2K-X
CSM_E2K-X_DS_E_7_1
General-purpose Threaded
Capacitive Sensor
• Product lineup with M12, M18, and M30 models.
• Fixed sensing distance requires no sensitivity adjustment.
Be sure to read Safety Precautions on
page 5.
Ordering Information
Sensors [Refer to Dimensions on page 6.]
Model
Appearance
Sensing distance
Output configuration
Operation mode
NO
M12
4 mm
Unshielded
M18
8 mm
M30
15 mm
NC
DC 3-wire, NPN
E2K-X4ME1 2M
DC 3-wire, PNP
E2K-X4MF1 2M
E2K-X4ME2 2M
E2K-X4MF2 2M
AC 2-wire
E2K-X4MY1 2M
E2K-X4MY2 2M
DC 3-wire, NPN
E2K-X8ME1 2M
E2K-X8ME2 2M
DC 3-wire, PNP
E2K-X8MF1 2M
E2K-X8MF2 2M
AC 2-wire
E2K-X8MY1 2M
E2K-X8MY2 2M
DC 3-wire, NPN
E2K-X15ME1 2M
E2K-X15ME2 2M
DC 3-wire, PNP
E2K-X15MF1 2M
E2K-X15MF2 2M
AC 2-wire
E2K-X15MY1 2M
E2K-X15MY2 2M
Accessories (Order Separately)
Mounting Brackets
Refer to Y92@ for details.
1
E2K-X
Ratings and Specifications
Item
E2K-X4ME@,
E2K-X4MF@,
E2K-X4MY@
Model
E2K-X8ME@,
E2K-X8MF@,
E2K-X8MY@
E2K-X15ME@,
E2K-X15MF@,
E2K-X15MY@
Sensing distance
4mm ±10%
8 mm ±10%
15 mm ±10%
Set distance *1
0 to 2.8 mm
0 to 5.6 mm
0 to 10 mm
Differential travel
4% to 20% of sensing distance
Detectable object
Conductors and dielectrics
Standard sensing object
Grounded metal plate: 50 × 50 × 1 mm
Response frequency
E and F Models: 100 Hz, Y Models: 10 Hz
Power supply voltage*2
(operating voltage range)
E and F Models: 12 to 24 VDC (10 to 30 VDC)
Y Models: 100 to 220 VAC (90 to 250 VAC)
Current consumption
E and F Models: 15 mA max.
Leakage current
Control
output
Y Models: 2.2 mA max. (Refer to page 4.)
Load current
E and F Models: 200 mA max.*2, Y Models: 10 to 200 mA
Residual voltage
E and F Models: 2 V max. (Load current: 200 mA, Cable length: 2 m), Y Models: Refer to Engineering Data on
page 4.
Indicators
E and F Models: Detection indicator (red), Y Models: Operation indicator (red)
Operation mode
(with sensing object
approaching)
E1, F1, and Y1 Models: NO
E2, F2, and Y2 Models: NC
Protection circuits
E and F Models: Reverse polarity protection, Surge suppressor, load short-circuit protection, output reverse polarity protection, Y Models: 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
±20% max. of sensing distance at 23°C in the operating temperature range
Voltage influence
E and F Models: ±2% max. of sensing distance at rated voltage at rated voltage ±20%
Y Models: ±2% max. of sensing distance at rated voltage at rated voltage ±10%
Insulation resistance
50 MΩ min. (at 500 VDC) between current-carrying parts and case
Dielectric strength
E and F Models: 1,000 VAC, 50/60 Hz for 1 min between current-carrying parts and case
Y Models: 2,000 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
Shock resistance
Destruction: 500 m/s2 3 times each in X, Y, and Z directions
Degree of protection
IP66 (IEC), in-house standards: oil-resistant
Connection method
Pre-wired Models (Standard cable length: 2 m)
Weight (packed state)
Approx. 65 g
Case
Materials
Sensing surface
Clamping nuts
Accessories
Refer to the timing charts under I/O Circuit Diagrams on page 4 for details.
Approx. 145 g
Operating/Storage: −10 to 55°C
(with no icing or condensation)
Approx. 205 g
Heat-resistant ABS
Polyacetal
Instruction manual
*1. The above values are sensing distances for the standard sensing object. Refer to Engineering Data on page 3 for other materials.
*2. E and F Models (DC switching models): A full-wave rectification power supply of 24 VDC ±20% (average value) can be used.
2
E2K-X
Engineering Data (Reference Value)
Sensing Area (Grounded Metal Plate)
Distance X (mm)
E2K-X4M
18
16
14
E2K-X15M
Y
X
12
10
8
Standard sensing
object Grounded
metal plate
50 × 50 × 1 mm
E2K-X8M
6
4
E2K-X4M
2
0
−5 −20 −15 −10 −5
0
5
10
15
E2K-X4M Sensing
20 25
Distance
Y (mm)
E2K-X8M Sensing Head
E2K-X15M Sensing Head
Influence of Sensing Object Size and Material
d×
d
t = 3 mm
X
Grounded metal
4
3
10
d×
d
E2K-X15M
t = 3 mm
X
Grounded metal
8
Distance X (mm)
5
E2K-X8M
Distance X (mm)
Distance X (mm)
E2K-X4M
6
25
d×
d
t = 3 mm
X
20
Grounded metal
15
Non-grounded metal
Non-grounded metal
Non-grounded metal
2
4
10
Glass
Glass
1
2
Glass
0
Acryl
Acryl
Phenol
20
30
40
50
60
70
Side length of sensing object: d (mm)
10
Phenol
5
Phenol
0
10
20
30
40
50
60
70
0
10
20
Side length of sensing object: d (mm)
30
40
50
60
70
Side length of sensing object: d (mm)
Sensing Object Thickness and Material vs. Sensing Distance
5
4
Grounded metal
50 ×
50
3
X
t
E2K-X15M
10
8
Grounded metal
50 ×
50
X
t
6
Distance X (mm)
E2K-X8M
Distance X (mm)
Distance X (mm)
E2K-X4M
25
20
50 ×
50
X
t
Grounded metal
15
Non-grounded metal
Non-grounded metal
Non-grounded metal
Glass
4
2
10
Acryl
2
1
5
Phenol
0
5
10
15
20
Glass
Phenol
Phenol
Glass
Acryl
25
Thickness of sensing object: t (mm)
0
5
10
15
20
25
Thickness of sensing object: t (mm)
0
5
10
15
20
25
Thickness of sensing object: t (mm)
3
E2K-X
Residual Output Voltage
[email protected]
[email protected]@
1.5
Protective resistance
mA
V
at 100 VAC
120
Residual output voltage
100
ON
80
[email protected]@
Load voltage VL (V)
2.0
Load voltage VL (V)
Leakage current (mA)
Leakage Current
240
Residual output voltage
200
ON
160
V
AC
power,
50/60Hz
V
60
120
VL
VL
(OFF)
1.0
40
100 VAC
A
100
0
3
200
300
Power supply voltage (V)
40
Residual
Load Voltage
5
10
OFF
20
30
200 VAC
80
20
0
at 200 VAC
0
3
50
100 200
Load current (mA)
A
Residual
Load
Voltage
5
10
20
30
50
100
OFF
200
Load current (mA)
I/O Circuit Diagrams
DC 3-Wire Models (NPN)
Operation
mode
Model
Timing chart
Output circuit
Present
Sensing object
Brown
Not present
NO
E2K-X4ME1
E2K-X8ME1
E2K-X15ME1
Load (between brown
and black leads)
+V
Operate
Reset
*1 Load
High
Output voltage (between
black and blue leads)
Low
ON
Detection indicator (red)
OFF
10 kΩ
Proximity
Sensor
main
circuit
Black
*2
Tr
Present
Sensing object
Not present
NC
E2K-X4ME2
E2K-X8ME2
E2K-X15ME2
Load (between brown
and black leads)
Blue
Operate
0V
Reset
High
Output voltage (between
black and blue leads)
Low
*1. Load current: 200 mA max.
*2. When a transistor is connected.
ON
Detection indicator (red)
OFF
DC 3-Wire Models (PNP)
Operation
mode
Model
Timing chart
Sensing
object
NO
E2K-X4MF1
E2K-X8MF1
E2K-X15MF1
Present
Not present
Load (between blue
and black leads)
E2K-X4MF2
E2K-X8MF2
E2K-X15MF2
+V
Reset
High
Output voltage (between
black and brown leads)
Low
ON
OFF
Sensing
object
Brown
Operate
Detection
indicator (red)
NC
Output circuit
*2
Proximity
Sensor
main
circuit
2.2 Ω
Black*1
Present
Load
Not present
Load (between blue
and black leads)
3.9 kΩ
Operate
47 kΩ
Blue
0V
Reset
High
Output voltage (between
black and brown leads)
Low
Detection
indicator (red)
*1. Load current: 200 mA max.
*2. When a transistor is connected.
ON
OFF
AC 2-Wire Models
Operation
mode
Model
Timing chart
Sensing object
NO
E2K-X4MY1
E2K-X8MY1
E2K-X15MY1
Present
Not present
Load
Reset
ON
OFF
Sensing object
NC
Present
Not present
Load
Brown
Operate
Operation indicator (red)
E2K-X4MY2
E2K-X8MY2
E2K-X15MY2
Output circuit
Load
Proximity
Sensor
main
circuit
Blue
Operate
Reset
Operation indicator (red)
ON
OFF
4
E2K-X
Safety Precautions
Refer to Warranty and Limitations of Liability.
WARNING
Sensing Objects
This product is not designed or rated for ensuring
safety of persons either directly or indirectly.
Do not use it for such purposes.
Precautions for Correct Use
Do not use this product under ambient conditions that exceed the
ratings.
● Design
Ambient Environment
The Sensor may malfunction if subjected to water, oil, chemicals, or
condensation by falsely detecting these as sensing objects.
The E2K-X15M is highly sensitive to inductive objects and can thus
be affected even by small quantities of water drops.
Influence of Surrounding Objects
If the Sensor is embedded in metal, maintain at least the following
distances between the Sensor and the metal. The Sensor is also
affected by other materials, such as resins. Separate the Sensor from
other materials by the same distance as for metal.
l
The maximum sensing distance will decrease if the sensing object is
a non-grounded metal object or dielectric object.
• Sensing Object Material
The E2K-X can detect almost any type of object. The sensing
distance of the E2K-X, 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-X will be
obtained if the object is made of grounded metal.
• There are objects that cannot be detected indirectly. Therefore, be
sure to test the E2K-X in a trial operation with the objects before
using the E2K-X in actual applications.
Effects of a High-frequency Electromagnetic Field
The E2K-X may malfunction if there is an ultrasonic washer, highfrequency generator, transceiver, or inverter nearby.
For major measures, refer to Noise of Warranty and Limitations of
Liability for Photoelectric Sensors.
Mounting
Do not tighten the nut with excessive force. Always use washers when
tightening the nuts and do not exceed the torque in the following table.
m
n
d dia.
Model
*
Metal object
Be sure to ground.
* Be sure to ground the metal object, otherwise Sensor operation will not be
stable.
E2K-X4M
E2K-X8M
E2K-X15M
Torque
0.78 N·m
2 N·m
Influence of Surrounding Metal (Unit: mm)
Model
Dimension
E2K-X4M
E2K-X8M
E2K-X15M
l
20
d
m
n
50
8
12
25
60
10
● Miscellaneous
Organic Solvents
The Sensor has a case made of heat-resistant ABS resin. Be sure
that the case is free from organic solvents or solutions containing
organic solvents.
If a mounting bracket is used, be sure that at least the following
distances are maintained.
Influence of Surrounding Metal
G
(Unit: mm)
Model
Dimension
E2K-X4M
E2K-X8M
E2K-X15M
G
20
H
H
30
10
Mutual Interference
When installing Sensors face-to-face or side-by-side, ensure that the
minimum distances given in the following table are maintained.
B
A
Mutual Interference
Model
Dimension
E2K-X4M
E2K-X8M
E2K-X15M
(Unit: mm)
A
B
80
150
300
70
110
200
5
E2K-X
(Unit: mm)
Dimensions
Tolerance class IT16 applies to dimensions in this data sheet unless otherwise specified.
E2K-X4ME@
E2K-X4MF@
E2K-X4MY@
E2K-X8ME@
E2K-X8MF@
E2K-X8MY@
80
21 dia.
80
29 dia.
60
60
17
20
4
24
Indicator *2
4
20
Indicator *2
4 4
10.7 dia.
16.6 dia.
*1
*1
M12 × 1
Two clamping nuts
Two washers
M18 × 1
*1. E and F Models: 4-dia. vinyl-insulated round cable with 3
conductors (Conductor cross section: 0.2 mm2, Insulator
diameter: 1.2 mm), Standard length: 2 m
Y Models: 4-dia. vinyl-insulated round cable with 2 conductors
(Conductor cross section: 0.3 mm2, Insulator diameter: 1.3 mm),
Standard length: 2 m
*2. E and F Models: Detection indicator (red)
Y Models: Operation indicator (red)
Two clamping nuts
Two washers
*1. E and F 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
*2. E and F Models: Detection indicator (red)
Y Models: Operation indicator (red)
Mounting Hole Dimensions
E2K-X15ME@
E2K-X15MF@
E2K-X15MY@
Model
+0.5
E2K-X4M@@
12.5 0
E2K-X8M@@
18.5 0
E2K-X15M@@
30.5 0
F
80
F (mm)
+0.5
+0.5
dia.
dia.
dia.
60
42 dia.
36
10
5
5
Indicator *2
28.1 dia.
*1
M30 × 1.5
Two clamping nuts
Two washers
*1. E and F 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
*2. E and F Models: Detection indicator (red)
Y Models: Operation indicator (red)
6
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have any questions or comments.
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for a period of twelve months from the date of sale by Omron (or such other period expressed in writing by Omron). Omron
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NON-INFRINGEMENT, MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE OF THE PRODUCTS. BUYER
ACKNOWLEDGES THAT IT ALONE HAS DETERMINED THAT THE
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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
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assumed for clerical, typographical or proofreading errors or omissions.
2014.1
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 2014 All Right Reserved.