Omron E2KQ-X User manual

1
CSM_E2KQ-X_DS_E_4_1
Chemical-resistant Proximity Sensor
E2KQ-X
Fluororesin-coated Capacitive
Sensor with Sensitivity Adjuster
• Excellent resistance against chemicals and oil with fluororesin-
coated case.
• Distance adjustment according to the sensing object using the
sensitivity adjuster.
Be sure to read Safety Precautions on
page 3.
Note: The cable is made of vinyl chloride and requires separate protection.
Ordering Information
Sensors [Refer to Dimensions on page 4.]
* An NC Model is also available. The model number is E2KQ-X10ME2.
Appearance Sensing distance Output
Model
Operation
mode Model
M18 DC 3-wire
NPN NO *E2KQ-X10ME1 2M
Unshielded
6 to
10 mm

E2KQ-X
2
Ratings and Specifications
* The above values are sensing distances for the standard sensing object. Refer to Engineering Data on the next page for other materials.
Engineering Data (Typical)
Item Model E2KQ-X
Sensing distance *10 mm
Sensing area 6 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 35 Hz
Power supply voltage
(operating voltage range) 12 to 24 VDC (10 to 30 VDC), ripple (p-p): 10% max.
Current consumption 15 mA max.
Control output Load current 100 mA
Residual voltage 1.5 V max. (Load current: 100 mA, Cable length: 2 m)
Indicators Detection indicator (red)
Operation mode
(with sensing object approaching) NO (Refer to the timing charts under I/O Circuit Diagrams on page 3 for details.)
Protection circuits Reverse polarity protection, Surge suppressor
Ambient temperature range Operating: −10 to 55°C, Storage: −25 to 55°C (with no icing or condensation)
Ambient humidity range Operating/storage: 35% to 85% (with no condensation)
Temperature influence ±15% max. of sensing distance at 23°C in the temperature range of −10 to 55°C
Voltage influence ±2% max. of sensing distance at rated voltage at rated voltage ±20%
Insulation resistance 50 MΩmin. (at 500 VDC) between current-carrying parts and case
Dielectric strength 500 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/s23 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. 150 g
Materials
Case,
sensing surface Fluorine resin
Clamping nuts
Cable Vinyl chloride
Accessories Adjustment screwdriver, Instruction manual
Sensing Area (Grounded Metal Plate) Influence of Sensing Object Size and
Material
Influence of Sensing Object Thickness
and Material
−20−30−40
5
X
Y
10
15
403020100−10
Distance X (mm)
Sensitivity
adjuster set to a
sensing distance
of 10 mm
Sensitivity
adjuster set to a
sensing distance
of 6 mm
Distance Y (mm)
Sensing Head
3020100
0
5
10
15
X
8070605040
d×
d t = 3 mm
Grounded metal
Non-grounded metal
Phenol
Glass
Side length of sensing object: d (mm)
Distance X (mm)
1050
0
5
10
15
Xt
30252015
50 ×
50
Grounded metal
Non-grounded metal
Phenol
Acryl
Wood
Glass
Thickness of sensing object: t (mm)
Distance X (mm)

E2KQ-X
3
I/O Circuit Diagrams
DC 3-Wire Models
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
If the E2KQ-X is embedded in metal, maintain at least the following
distances between the E2KQ-X and the metal.
* Be sure to ground the metal object, otherwise E2KQ-X operation will not be
stable.
Influence of Surrounding Metal (Unit: mm)
If a mounting bracket is used, be sure that at least the following
distances are maintained.
Mutual Interference
When installing Sensors face-to-face or side-by-side, ensure that the
minimum distances given in the following table are maintained.
Mutual Interference (Unit: mm)
Effects of a High-frequency Electromagnetic Field
The Sensor may malfunction if there is an ultrasonic washer, high-
frequency generator, or transceiver nearby.
For major measures, refer to Noise of Warranty and Limitations of
Liability for Photoelectric Sensors.
●Mounting
Be sure to tighten each nut with torque not exceeding the following
value.
●Adjustment
Sensing Object
The maximum sensing distance will decrease if the sensing object is
a non-grounded metal object or dielectric object.
•Sensing Object Material
The E2KQ-X can detect almost any type of object. The sensing
distance of the E2KQ-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 E2KQ-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 E2KQ-X in a trial operation with the objects before
using the E2KQ-X in actual applications.
Operation
mode Model Timing chart Output circuit
NO E2KQ-X10ME1
WARNING
Present
Not present
Operate
Reset
High
Low
ON
OFF
Load (between brown
and black leads)
Sensing object
Output voltage (between
black and blue leads)
Detection indicator (red)
4.7 kΩ
0 V
Tr
+V
*1. Load current: 100 mA max.
*2. When a transistor is connected.
Proximity
Sensor
main
circuit
Brown
Blue
Black*1
Output*2
Load
Precautions for Correct Use
Model Dimension l d m n
E2KQ-X10ME1 30 75 18 90
n
m
d dia.
l
*
Be sure to ground. Metal object
Influence of Surrounding Metal
(Unit: mm)
Model Dimension G H
E2KQ-X10ME1 30 35
G
H
Model Dimension A B
E2KQ-X10ME1 200 32
AB
Model Torque
E2KQ-X10ME1 0.6 N·m

E2KQ-X
4
●Miscellaneous
Ambient Environment
The Sensor may malfunction if subjected to water, oil, chemicals, or
condensation by falsely detecting these as sensing objects.
Environment
The E2KQ-X is of water-resistant construction. To increase the
reliability of the E2KQ-X in operation, however, it is recommended
that the E2KQ-X be protected with an appropriate cover so that the
E2KQ-X will be free from sprayed water or machining oil.
The cable is not coated with Fluororesin, which must be taken into
consideration when installing the E2KQ-X.
Dimensions (Unit: mm)
Tolerance class IT16 applies to dimensions in this data sheet unless otherwise specified.
E2K
Q
-X10ME1
16 dia.
24 8
20
61.8
18.5+0.5
0 dia.
Mounting Hole
Dimensions
Fluorine resin
M18 ×1.5
Fluorine resin Two clamping nuts
coated with
fluoride resin
Detection
indicator (red) Indicator
Sensitivity adjustment screw
6-dia. vinyl-insulated round cable with 3
conductors (Conductor cross section: 0.5 mm2,
Insulator diameter: 1.9 mm), Standard length: 2 m