E2K-C
E2K-C
Adjustable Capacitive Prox
Cylindrical Sensor Offers
Adjustable Detecting Distance
s
Permits non-contact detection of
metallic and non-metallic objects such
as glass, wood, water, oil and plastic
s
Allows indirect detection of materials
inside non-metallic containers
s
Adjustable detecting distance from 3
to 25 mm
s
Built-in amplifier accepts wide range
of supply voltages and switches up to
200 mA
s
Mounting bracket included
E2K-C
Ordering Information
s
SENSORS
Type
Nominal detecting distance
Output type
Part
AC switching type (SCR)
number
DC switching
NPN
type
PNP
Unshielded
3 to 25 mm (0.12 to 0.98 in), adjustable
NO
NC
E2K-C25MY1
E2K-C25MY2
E2K-C25ME1
E2K-C25ME2
E2K-C25MF1
E2K-C25MF2
s
REPLACEMENT PARTS
Description
Mounting bracket for E2K-C (supplied with sensor)
Part number
Y92E-A34
2
E2K-C
E2K-C
Specifications
Part number
Sensor type
Body
Supply voltage
Current consumption
Detectable object type
Sensitivity
Effective maximum detecting
distance (with standard target)
Standard target size
(grounded mild steel, L x W x H)
Differential travel
Control
output
AC
solid-
state
Type
Max. load
Min. load
Max. off-state
leakage current
Max. on-state
voltage drop
Type
Size
Type
E2K-C25M❑❑
Capacitive
34 mm (1.34 in) diameter
Unshielded
10 to 40 VDC, 10% max. permissible
ripple peak to peak
10 mA max. at 12 VDC
15 mA max. at 24 VDC
Metallic and non-metallic objects
Adjustable
3 to 25 mm
(0.12 to 0.98 in)
50 x 50 x 1 mm
(2.0 x 2.0 x 0.04 in)
15% max. of detecting distance
—
—
—
—
—
NPN-NO open collector with pull-up
NPN-NC open collector with pull-up
PNP-NO open collector with pull-down
PNP-NC open collector with pull-down
200 mA
See “Residual Load Voltage” graph in
Engineering Data
70 Hz
Not provided
Provided
Not provided
Not provided
Target Present (red LED)
ABS/PC
ABS
PVC
Bracket Y92E-A34 included
Three-conductor cable, 2 m (6.56 ft) length Two-conductor cable, 2 m (6.56 ft) length
Approx. 200 g (7.0 oz.)
1
1, 4, 12, 13
IP67
—
—
Listed, File Number E76675
Certified, File Number LR45951
SCR-NO (E2K-C25MY1)
SCR-NC (E2K-C25MY2)
200 mA
5 mA
See “Leakage Current Characteristics”
graph in Engineering Data
2V max.
—
E2K-C25MY❑
90 to 250 VAC, 50/60 Hz
1 mA max. at 100 VAC
2 mA max. at 200 VAC
DC
solid-
state
Max. load
Max. on-state
voltage drop
Response frequency
Output short-
Circuit
circuit
protection
DC power supply
reverse polarity
Weld field immunity
RFI immunity
Indicators
Materials
Housing
Sensing face
Cable sheath
Mounting
Connections
Weight with cable
Enclosure
ratings
Approvals
Prewired
UL
NEMA
IEC 144
UL
CSA
—
—
10Hz
Not provided
Output Operation (red LED)
Ambient operating temperature
Vibration
Shock
–25° to 70°C (–13° to 158°F)
10 to 55 Hz, 1.5 mm (0.06 in) double amplitude
Approx. 50 G's
3
E2K-C
E2K-C
Operation
s
OUTPUT CIRCUIT DIAGRAMS AND TIMING CHARTS
DC Switching Types
E2K-C25ME❑
The dotted line shows a transistor circuit load.
22
Ω
4.7 KΩ
D
1
Prox.
switch
main
circuit
D
2
Black (White)
2.2
Ω
ZD
Blue (Black)
0V
Tr
Brown (Red)
+V
E2K-C25MF
❑
The dotted line shows a transistor circuit load.
Brown (Red)
+V
ZD
Prox.
switch
main
circuit
Black (White)
D
2
22
Ω
Blue (Black)
0V
2.2
Ω
D
1
Tr
Load
4.7 KΩ
Note: IEC colors are shown in parentheses.
E2K-C25ME1
NO
Target
Load (between
red and white)
Present
Absent
Operates
Releases
E2K-C25ME2
NC
Target
Present
Absent
Load (between Operates
white and black) Releases
Logic (between
red and white)
Operation
indicator
H
L
ON
OFF
E2K-C25MF1
NO
Load
E2K-C25MF2
NC
Logic (between H
white and black) L
ON
Operation
indicator
OFF
AC Switching Types
E2K-C25MY❑
White (Black)
Load
NO
Prox.
switch
main
circuit
Black (Blue)
Load
NC
NO
NC
Target
Present
Absent
Operates
Releases
Operates
Releases
ON
OFF
ON
OFF
Operation
indicator
Note: IEC colors are shown in parentheses.
4
E2K-C
E2K-C
Engineering Data
Operating Range
E2K-C25MY1
Standard X
target
Detecting distance X (mm)
Detecting30
head
Y 25
20
15
10
Setting
distance
25mm
20mm
15mm
10mm
5
5mm
25 20 15 10 5 0 5 10 15 20
25
Y (mm)
Detecting head
Detecting Distance vs. Size and Material of Target
Detecting Distances of Common Materials
30
25
Detecting distance X (mm)
20
Detecting distance X (mm)
Detecting
distance
X
❑
Grounded
mild steel
t = 1 mm
Ungrounded
mild steel
t = 1 mm
25
20
15
15
10
Phenolic resin
plate
t = 6 mm
10
5
5
0
Soft wood
(160 x 120 x 15 mm)
Grounded
mild steel
(50 x 50 x 1 mm)
Milk
(500 ml)
Salt
Neoprene rubber
(50 x 50 x 5 mm)
10
20
30 40
50
60 70
(mm)
80 90 100
Size of target
5
Phenolic resin
(50 x 50 x 50 mm)
Glass
(200 x 50 x 3 mm)
Plastic resin
pellets
Sugar
Flour
0
E2K-C
Residual Load Voltage Characteristics
DC switching types
E2K-C25M❑❑
24VDC
1
0.5
ON (V
2
)
100
90
80
70
60
50
40
30
Residual
output
voltage
E2K-C
AC switching types
E2K-C25MY❑
100 VAC
200 VAC
Residual
output
voltage
200
ON
Load voltage (V)
24 VDC
0.1
0.05
OFF (V
1
)
Load voltage (V)
Load voltage (V)
ON
150
Load
AC
100V
100
Load
AC
200V
OFF
5
10
50 100 200
Load current (mA)
50
OFF
10
50 100 200
Load current (mA)
0.01
0
50
100
150
200
Load current (mA)
250
20 Residual
10 load
voltage
0
1
5
Residual
load
voltage
0
1
R<
=
P
i
V
S
(mW)
10 – i
R
: Power rating of bleeder resistor
: Load current (mA)
: Supply voltage (V)
V
S
(kΩ)
P>
V
S 2
Note: When the current rating of the load is less than 10 mA, false operation may
occur. This is normal, and the problem can be cured by installing a bleeder resistor in
parallel with the load. Use the formulas given here to calculate the power rating and
value of the resistor.
Leakage Current Characteristics
AC switching types
E2K-C25MY❑
3.0
2.5
Leakage current (mA)
2.0
1.5
1.0
0.5
OFF state
0
0 80 100 120 140 160 180 200 220 240
260
Supply voltage (V)
Dimensions
Unit: mm (inch)
s
SENSORS
E2K-C25M❑❑
82
(3.23)
31
(1.22)
Cap screw for
sensitivity adjustment
6
(0.24)
Operation indicator
(LED)
20
(0.79)
34 (1.34)
dia.
0.15
(0.006)
Cable: 2 m (6.56 ft.) length
Note: Cable may be extended to 200 m (656 ft).
6
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