Omron E2K-F DATASHEET
Flat Type Capacitive Proximity Sensor
E2K-F
Low-profiled Capacitive
Proximity Sensor providing
Flexible Installation
Ordering Information
Shape Sensing distance Output specifications Operating status Model
Flat type
Unshielded
10 mm
4 to 10 mm
NO
NC
DC 3-wire NPN
NO
NC
E2K-F10MC1
E2K-F10MC2
E2K-F10MC1-A
E2K-F10MC2-A
Rating/Performance
Item
Sensing distance 10 mm ±10% 4 to 10 mm ±10%
Setting distance 0 to 7.5 mm
Differential distance 15% max. sensing distance
Sensing object Conductors and dielectrics
Standard sensing object with grounded metal: 50 x 50 x 1 mm
Response frequency
Rated supply voltage
(operating voltage)
Current consumption 10 mA max. (24VDC)
Control
output
Indicator lamp Detection indicator (red LED)
Operating status (with sensing
object approaching)
Protective circuits Reverse connection protection, surge absorber
Ambient temperature Operating/Storage: -10°C to 55°C (with no icing or condensation)
Ambient humidity Operating/Storage: 35% to 95%RH
Temperature influence ±15% max. of sensing distance at 23°C within the temperature range of -10°C and 55°C
Voltage influence ±2.5% max. of sensing distance within a range of ±10% of rated supply voltage
Insulation resistance 50 M min. (at 500 VDC) between energized parts and case
Dielectric strength 500 VAC 50/60 Hz for 1 min between energized part and case
Vibration resistance Malfunction: 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 for 3 times each in X, Y, and Z directions
Protective structure IEC 60529 IP66 IEC 60529 IP64
Connection method Pre-wired models (standard length: 2 m)
Weight (Packed state) Approx. 35 g
Material
Accessories Instruction manual
Switching capacity NPN open collector 100 mA max. (under 30 VDC)
Residual voltage 1.5 V max. (under load current of 100 mA with cable length of 2 m)
Case
Sensing surface
100 Hz
12 to 24 VDC (10 to 30 VDC), ripple (p-p): 10% max.
NO
Heat-resistant ABS resin
E2K-F10MC1
E2K-F10MC2
E2K-F10MC1-A
E2K-F10MC2-A
E2K-F
D-189E2K-F
Characteristic data (typical)
Sensing Distance vs. Sensing Object
Output Circuit Diagram
10
9
8
7
6
Sensing distance X (mm)
5
4
3
2
1
0 1020304050 607080
Grounded metal (t=1)
Ungrounded metal (t=10)
Glass
(t=10)
Sensing object size (mm)
Phenol resin
(t=10)
Precautions
Correct Use
Design
Sensing Object Material
E2K-F can detect almost any type of object. The sensing distance of E2K-F, however, will vary with the electrical characteristics of the object, such as the conductance and
inductance of the object, as well as the water content and capacity of the object. The maximum sensing distance of E2K-F
will be available if the object is made of grounded metal.
There are objects that cannot be detected indirectly. Therefore test E2K-F in a trial operation with the objects before using E2K-F in actual applications.
Effects of Surrounding Metal
Separate E2K-F from ambient metals as shown below.
30mm
60mm
45mm
NO Type
(load)
(red)
100
Yes
No
ON
OFF
ON
OFF
Brown
W
Brack
Output
Blue
+V
Load
*
0V
Operating
Chart
Output circuit
Sensing object
Output transistor
Operation indicator
Main
circuit
* 100 mA max. (load current)
Mutual Interference
If installing more than one E2K-F face to face or side by side,
separate them as shown below.
40mm
50mm
Close mounting possible Face-to-face mounting
50mm
Effect of High-frequency Electro-magnetic Field
E2K-F may malfunction if an ultrasonic washer, high-frequency generator, transceiver, or inverter are nearby.
For a typical measure, refer to the "Noise" with Common precautions of a photoelectric sensor in Rear B-page.
Wiring Considerations
The characteristics of E2K-F will not change if the cord is extended. Keep in mind that voltage drops may occur due to the
cord extension, thus, ensure that the total cord length does
not exceed 200 m.
Metal object
Metal object
Metal object
D-190 Capacitive Sensors
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