Photoelectric Sensors
DK Series
Contrast Sensors
•For registration mark detection, print
verification, product positioning
•Wide range of light sources and
housing configurations
DK10 Series
DK12 Series Dura-VueTM
See pages 643-645
See page 646
Features:
• Basic series contrast sensor with potentiometer
adjustment
• Dual lens position available
• Multiple light spot sizes and orientations for
convenient mounting
• Laser light source models
• Off delay version also available
• Analog output monitors the brightness of marks
Sensing Ranges: 9.5 mm, 300 mm, 10 m
Features:
• Compact, rugged die-cast metal housing
• Adjustable connector position
• High-visibility, dual position indicator LEDs
• Both static and dynamic teaches in one housing
• 4-in-1 output minimizes stocking and selection
requirements
Sensing Range: 11 mm
Photoelectric Contrast Sensors
•Detects color mark on background
Outputs: 4-in-1
Outputs: 4-in-1, analog
DK(E)20/DK(E)21 Series
DK34/DK35 Series
See pages 647-650
See page 651
Features:
• DK20 static teach allows one automatic teach
step for target and one automatic teach step for
background
• DK21 dynamic mode teach allows one “on-thefly” teach step for both target and background
• 30µs response time
• Multiple light spot sizes and orientations for
convenient mounting
• Dual lens position
• Automatic selection of best color light source
• DKE stainless steel versions for use in special
environments
Features:
• Single position lens allows optimal contrast detection
• Typically two gray scale steps better contrast
detection than DK20/DK21 series
Sensing Ranges: 9.5 mm
Outputs: 4-in-1
4 output options from 1 sensor:
NPN normally open, NPN normally
closed, PNP normally open, or
PNP normally closed
Sensing Ranges: 9.5 mm, 25 mm, 50 mm
Outputs: 4-in-1, analog
See page 652-660 for Contrast Sensor wiring and dimensions.
Subjecttomodificationswithoutnotice
Pepperl+FuchsGroup
USA:+13304860001
www.pepperl-fuchs.com
[email protected]
Germany:+496217760
[email protected]
CopyrightPepperl+Fuchs
Singapore:+6567799091
[email protected]
641
Photoelectric Sensors
Photoelectric Contrast Sensors
Contrast Sensors
The contrast sensor evaluates the brightness difference between a target
color and a background color. Sometimes the color difference between the
mark and its background may be very slight: in these cases, contrast sensors
with variable color LED light sources are beneficial. The color of the LED light
source is important, and the appropriate choice of color for the light source, or
using a unit that has variable color sources, can allow detection of very slight
contrasts. For example, a green color LED light source is more likely to detect
a contrast between red and blue than a contrast between green and blue.
A common application for contrast sensors is a converting operation. A web
of printed media may need to be cut into individual sheets, and registration
marks are printed in certain locations to signal the machine controller to cut
the media. For example, a continuous sheet of margarine wrappers is cut
into individual wrappers with the printing centered on each individual sheet.
The registration marks can be used to trigger other operations, like folding or
the application of an adhesive. Contrast sensors can also be used to detect
the expiration dates on containers or printed lot codes on pill bottles. They
can be used to determine if certain small electrical components are facing in
the correct direction by programming the contrast sensor to recognize one
side of the component as the target condition and the other side (a different
color) as the background condition. Contrast sensors can position bottles for
label placement by detecting a mark or other label on the bottle for proper
alignment. They can be used for hole detection or to detect small printing on
IC chips. Laser source versions can detect small marks on shafts for speed
control when it is not possible to mount a sensor close to the shaft.
Detection of registration marks controls
cutting of webstock.
Verification of glue strip presence on
carton flap.
Verification of presence of foil insert in
bottle caps.
642
Subjecttomodificationswithoutnotice
Pepperl+FuchsGroup
USA:+13304860001
www.pepperl-fuchs.com
[email protected]
Germany:+496217760
[email protected]
CopyrightPepperl+Fuchs
Singapore:+6567799091
[email protected]
Photoelectric Sensors
DK10 Contrast Sensors
Specifications
Sensing Characteristics
Yes
Yes
Relative Sensitivity
DK10-9.5/92/110
DK10-9.5/A/92/110
DK10-9.5/79b/92/110
DK10-9.5/A/79b/92/110
4-in-1*
4-in-1*
4-in-1*, and analog
0.3-10 mA (load ≤ 600 Ω)
4-in-1*, and analog
0.3-10 mA (load ≤ 600 Ω)
LOAD CURRENT
200 mA max.
200 mA max.
VOLTAGE DROP
≤ 2.5 VDC
≤ 2.5 VDC
Yes
Yes
OUTPUT: Transistor,
/110
Normally Open or
Normally Closed
/79b/110
SHORT CIRCUIT AND
OVERLOAD PROTECTION
REVERSE POLARITY
PROTECTION
Yes
Yes
SUPPLY VOLTAGE
10-30 VDC
10-30 VDC
VOLTAGE RIPPLE
10%
10%
LED(s)
Yes (1)†
Yes (1)†
CURRENT CONSUMPTION
≤ 55 mA
≤ 55 mA
Light on/dark on
Light on/dark on
30 µs
30 µs
OPERATING MODE
RESPONSE TIME
SWITCHING FREQUENCY
IP67
LIGHT SPOT SIZE
AND ORIENTATION
1 x 4 mm,
parallel to housing
1 x 4 mm,
perpendicular to housing
Green LED
Green LED
WORKING
-4 ºF to +14 0ºF
-4 ºF to +140 ºF
STORAGE
-4 ºF to +167 ºF
-4 ºF to +167 ºF
Makrolon
Makrolon
Glass
Glass
7.1 oz
7.1 oz
Quick
disconnect
type V1
Quick
disconnect
type V1
0%
0
10
20
30
40
50
60
DistanceX[mm]
DK10-9.5/79b
10
8
6
4
2
10
20
x
IP67
LENS
20%
0
PROTECTION (IEC)
WEIGHT
40%
0
16.5 kHz
HOUSING MATERIAL
60%
Analog Output
EN 60947-5-2
TEMPERATURE
RANGE
80%
12
16.5 kHz
LIGHT SOURCE
100%
x
EN 60947-5-2
STANDARDS
DK10-9.5
120%
OuputCurrent[mA]
MODEL NUMBER(S)
9.5 mm ±3 mm
RelativeSensitivity
SENSITIVITY ADJUSTMENT
9.5 mm ±3 mm
30
40
50
DistanceX[mm]
60
70
80
Photoelectric Contrast Sensors
SENSING RANGE
APPROVALS
ELECTRICAL CONNECTION
ADDITIONAL DATA
See pages 652-660
*NPN normally open, NPN normally closed, PNP normally open, or PNP normally closed
†
See dimensional drawings for LED functions.
Stocked item
Typical delivery 4 weeks or less
Consult factory for all other models
Subjecttomodificationswithoutnotice
Pepperl+FuchsGroup
USA:+13304860001
www.pepperl-fuchs.com
[email protected]
Germany:+496217760
[email protected]
CopyrightPepperl+Fuchs
Singapore:+6567799091
[email protected]
643
Photoelectric Sensors
DK10 Contrast Sensors
Photoelectric Contrast Sensors
Specifications
Laser Diffuse Mode
3-800 mm
SENSITIVITY ADJUSTMENT
Yes
Yes
Yes
REFLECTOR DISTANCE
—
—
0-10 m
MODEL NUMBER(S)
0-10 m
DK10-LAS/76a/110/124
DK10-LAS/35/49
DK10-LAS-54/76/110/124
DK10-LAS/76a/79b/110/124
DK10-LAS/35/79b
—
4-in-1†
1 NPN and 1 PNP
4-in-1†
4-in-1 , with analog
0.3-10 mA (load ≤ 600 Ω)
4-in-1 , with analog
0.3-10 mA (load ≤ 600 Ω)
—
LOAD CURRENT
200 mA max.
200 mA max.
200 mA max.
VOLTAGE DROP
≤ 2.5 VDC
≤ 2.5 VDC
≤ 2.5 VDC
SHORT CIRCUIT AND
OVERLOAD PROTECTION
Yes
Yes
Yes
REVERSE POLARITY
PROTECTION
Yes
Yes
Yes
SUPPLY VOLTAGE
10-30 VDC
10-30 VDC
10-30 VDC
VOLTAGE RIPPLE
10%
10%
10%
Yes (1)‡
Yes (1)‡
Yes (1)‡
OUTPUT: Transistor,
/110 or /49
Normally Open or
Normally Closed
/79b
LED(s)
CURRENT CONSUMPTION
OPERATING MODE
†
STANDARDS
≤ 55 mA
≤ 55 mA
≤ 55 mA
Light on/dark on
Light on/dark on
30 µs
30 µs
30 µs
16.5 kHz
16.5 kHz
16.5 kHz
EN 60947-5-2
EN 60947-5-2
EN 60947-5-2
PROTECTION (IEC)
IP67
IP67
IP67
≈ 0.8 mm at a range of 300 mm
≈ 2.0 mm at a range of 800 mm
≈ 10 mm at a range of 10 m
≈ 1 mrad
≈ 1 mrad
≈ 1 mrad
Visible red laser Class 2
Visible red laser Class 2
Visible red laser Class 2
≤ 40,000 lux
≤ 40,000 lux
≤ 40,000 lux
WORKING
+14 ºF to +122 ºF
+14 ºF to +122 ºF
+14 ºF to +122 ºF
STORAGE
-4 ºF to +167 ºF
-4 ºF to +167 ºF
-4 ºF to +167 ºF
Makrolon
Makrolon
Makrolon
LIGHT SPOT DIAMETER
LIGHT BEAM ANGLE
LIGHT SOURCE
AMBIENT LIGHT RESISTANCE
TEMPERATURE
RANGE
†
Light on/dark on
RESPONSE TIME
SWITCHING FREQUENCY
HOUSING MATERIAL
LENS
Laser Retro-Reflective Mode*
3-300 mm
SENSING RANGE
WEIGHT
Glass
Glass
Glass
7.1 oz
7.1 oz
7.1 oz
Quick
disconnect
type V15
Quick
disconnect
type V15
Quick
disconnect
type V15
APPROVALS
ELECTRICAL CONNECTION
ADDITIONAL DATA
See pages 652-660
*Micro-structure corner-cube reflectors are recommended with laser retro-reflective mode sensors.
†
NPN normally open, NPN normally closed, PNP normally open, or PNP normally closed
‡
See dimensional drawings for LED functions.
Stocked item
Typical delivery 4 weeks or less
Consult factory for all other models
644
Subjecttomodificationswithoutnotice
Pepperl+FuchsGroup
USA:+13304860001
www.pepperl-fuchs.com
[email protected]
Germany:+496217760
[email protected]
CopyrightPepperl+Fuchs
Singapore:+6567799091
[email protected]
Photoelectric Sensors
DK10 Contrast Sensors
Sensing Characteristics
Objectcolor
LightSpotDiameter[mm]
Detection Ranges
DK10-LAS
0
50
100
150
200
250
300
0
350
50
DistanceX[mm]
OffsetY[mm]
Reflectors
H85
FE-RR1
H60
H160
10
90
80
70
60
50
40
30
20
10
0
0
2
3
15
6
y
10
4
DistanceX[m]
x
5
200
250
300
Movement Characteristics
DK10-LAS-54
100
x
150
350
400
DistanceX[mm]
Excess Gain vs. Sensing Range
0
100
x
1000
ExcessGain
gray
white
x
1
DK10-LAS
DistanceX[m]
Beam Spread
DK10-LAS-54
8
10
12
Reflectors
H85
FE-RR1
H60
H160
Photoelectric Contrast Sensors
Beam Spread
0.5
0.4
0.3
0.2
0.1
0
-0.1
-0.2
-0.3
-0.4
-0.5
DK10-LAS-54
LightSpotDiameter[mm]
6
4
2
0
-2
-4
-6
0
2
4
x
6
8
10
12
DistanceX[m]
CAUTION
LASER RADIATION—
DO NOT STARE INTO BEAM
650nm LASER LIGHT
1mW PEAK POWER
PRODUCT CONFORMS TO 21CFR1040
CLASS II LASER PRODUCT
AVOID EXPOSURE – Laser radiation
is emitted from this aperture
Subjecttomodificationswithoutnotice
Pepperl+FuchsGroup
USA:+13304860001
www.pepperl-fuchs.com
[email protected]
Germany:+496217760
[email protected]
CopyrightPepperl+Fuchs
Singapore:+6567799091
[email protected]
645
Photoelectric Sensors
DK12 Dura-Vue Contrast Sensor
Photoelectric Contrast Sensors
Specifications
11 mm ±2 mm
SENSING RANGE
SENSITIVITY ADJUSTMENT
Yes
TEACH METHOD
Static or dynamic mode
MODEL NUMBER(S)
DK12-11/124/136
OUTPUT
4-in-1*
/136
—
LOAD CURRENT
100 mA max.
SHORT CIRCUIT AND
OVERLOAD PROTECTION
Yes
REVERSE POLARITY
PROTECTION
Yes
SUPPLY VOLTAGE
10-30 VDC
VOLTAGE RIPPLE
10%
LED(s)
Yes (2)†
≤ 80 mA
CURRENT CONSUMPTION
OPERATING MODE
Light on/dark on
RESPONSE TIME
50 µs
SWITCHING FREQUENCY
10 kHz
STANDARDS
EN 60947-5-2
PROTECTION (IEC)
IP67
LIGHT SPOT SIZE
AND ORIENTATION
1 x 3 mm,
parallel to housing
LIGHT BEAM ANGLE
± 3º max.
LIGHT SOURCE
TEMPERATURE
RANGE
Green, red, or blue LED
WORKING
-4 ºF to +140 ºF
STORAGE
HOUSING MATERIAL
-40 ºF to +167 ºF
Nickel-plated die-cast zinc and
glass-fiber reinforced plastic PC
LENS
WEIGHT
Plastic
2.1 oz
APPROVALS
ELECTRICAL CONNECTION
ADDITIONAL DATA
Quick
disconnect
type V15
See pages 652-660
*NPN normally open, NPN normally closed, PNP normally open, or PNP normally closed
†
See dimensional drawings for LED functions.
Stocked item
Typical delivery 4 weeks or less
Consult factory for all other models
646
Subjecttomodificationswithoutnotice
Pepperl+FuchsGroup
USA:+13304860001
www.pepperl-fuchs.com
[email protected]
Germany:+496217760
[email protected]
CopyrightPepperl+Fuchs
Singapore:+6567799091
[email protected]
Photoelectric Sensors
DK20/DK21 Contrast Sensors
Specifications
SENSITIVITY ADJUSTMENT
TEACH METHOD
MODEL NUMBER(S)
OUTPUT: Transistor,
9.5 mm ±3 mm
9.5 mm ±3 mm
Yes
Yes
Yes
Static mode
Static mode
Static mode
DK20-9.5/110/124
DK20-9.5/A/110/124
DK20-9.5/B/110/124
DK20-9.5/79b/110/124
DK20-9.5/A/79b/110/124
DK20-9.5/B/79b/110/124
4-in-1*
4-in-1*
4-in-1*
4-in-1*, and analog
0.3-10 mA (load ≤ 600 Ω)
4-in-1*, and analog
0.3-10 mA (load ≤ 600 Ω)
4-in-1*, and analog
0.3-10 mA (load ≤ 600 Ω)
LOAD CURRENT
200 mA max.
200 mA max.
200 mA max.
VOLTAGE DROP
≤ 2.5 VDC
≤ 2.5 VDC
≤ 2.5 VDC
SHORT CIRCUIT AND
OVERLOAD PROTECTION
Yes
Yes
Yes
REVERSE POLARITY
PROTECTION
Yes
Yes
Yes
SUPPLY VOLTAGE
10-30 VDC
10-30 VDC
10-30 VDC
VOLTAGE RIPPLE
10%
10%
10%
Yes (1)†
Yes (1)†
Yes (1)†
/110
Normally Open or
Normally Closed
/79b/110
LED(s)
CURRENT CONSUMPTION
OPERATING MODE
RESPONSE TIME
SWITCHING FREQUENCY
STANDARDS
≤ 70 mA
≤ 70 mA
≤ 70 mA
Light on/dark on
Light on/dark on
Light on/dark on
30 µs
30 µs
30 µs
16.5 kHz
16.5 kHz
16.5 kHz
EN 60947-5-2
EN 60947-5-2
EN 60947-5-2
PROTECTION (IEC)
IP67
IP67
IP67
LIGHT SPOT SIZE
AND ORIENTATION
1 x 4 mm,
parallel to housing
1 x 4 mm,
perpendicular to housing
ø 1.5 mm
LIGHT SOURCE
TEMPERATURE
RANGE
Green, red, or blue LED
Green, red, or blue LED
Green, red, or blue LED
WORKING
-4 ºF to +140 ºF
-4 ºF to +140 ºF
-4 ºF to +140 ºF
STORAGE
-4 ºF to +167 ºF
-4 ºF to +167 ºF
-4 ºF to +167 ºF
Makrolon
Makrolon
Makrolon
Glass
Glass
Glass
7.1 oz
7.1 oz
7.1 oz
Quick
disconnect
type V15
Quick
disconnect
type V15
Quick
disconnect
type V15
HOUSING MATERIAL
LENS
WEIGHT
Photoelectric Contrast Sensors
9.5 mm ±3 mm
SENSING RANGE
APPROVALS
ELECTRICAL CONNECTION
ADDITIONAL DATA
See pages 652-660
*NPN normally open, NPN normally closed, PNP normally open, or PNP normally closed
†
See dimensional drawings for LED functions.
Stocked item
Typical delivery 4 weeks or less
Consult factory for all other models
Subjecttomodificationswithoutnotice
Pepperl+FuchsGroup
USA:+13304860001
www.pepperl-fuchs.com
[email protected]
Germany:+496217760
[email protected]
CopyrightPepperl+Fuchs
Singapore:+6567799091
[email protected]
647
Photoelectric Sensors
DK20/DK21 Contrast Sensors
Photoelectric Contrast Sensors
Specifications
9.5 mm ±3 mm
SENSING RANGE
SENSITIVITY ADJUSTMENT
9.5 mm ±3 mm
25 mm ±6 mm
25 mm ±6 mm
Yes
Yes
Yes
Yes
Dynamic mode
Dynamic mode
Static mode
Static mode
DK21-9.5/110/124
DK21-9.5/A/110/124
DK20-25/110/124
DK20-25/A/110/124
—
—
—
—
4-in-1*
4-in-1*
4-in-1*
4-in-1*
—
—
—
—
LOAD CURRENT
200 mA max.
200 mA max.
200mA max.
200mA max.
VOLTAGE DROP
≤ 2.5 VDC
≤ 2.5 VDC
≤2.5VDC
≤2.5VDC
SHORT CIRCUIT AND
OVERLOAD PROTECTION
Yes
Yes
Yes
Yes
REVERSE POLARITY
PROTECTION
Yes
Yes
Yes
Yes
SUPPLY VOLTAGE
10-30 VDC
10-30 VDC
10-30VDC
10-30VDC
VOLTAGE RIPPLE
10%
10%
10%
10%
Yes (1)†
Yes (1)†
Yes (1)†
Yes (1)†
TEACH METHOD
MODEL NUMBER(S)
OUTPUT: Transistor,
/110
Normally Open or
Normally Closed
LED(s)
CURRENT CONSUMPTION
OPERATING MODE
RESPONSE TIME
SWITCHING FREQUENCY
STANDARDS
≤ 60 mA
≤ 60 mA
≤70mA
≤70mA
Light on/dark on
Light on/dark on
Light on/dark on
Light on/dark on
30 µs
30 µs
30µs
30µs
16.5 kHz
16.5 kHz
16.5kHz
16.5kHz
EN 60947-5-2
EN 60947-5-2
EN 60947-5-2
EN 60947-5-2
PROTECTION (IEC)
IP67
IP67
IP67
IP67
LIGHT SPOT SIZE
AND ORIENTATION
1 x 4 mm,
parallel to housing
1 x 4 mm,
perpendicular to housing
2 x 8.5mm,
parallel to housing
2 x 8.5mm,
perpendicular to housing
LIGHT SOURCE
TEMPERATURE
RANGE
Green, red, or blue LED
Green, red, or blue LED
Green, red, or blue LED
Green, red, or blue LED
WORKING
-4 ºF to +140 ºF
-4 ºF to +140 ºF
-4ºF to +140ºF
-4ºF to +140ºF
STORAGE
-4 ºF to +167 ºF
-4 ºF to +167 ºF
-4ºF to +167ºF
-4ºF to +167ºF
Makrolon
Makrolon
Makrolon
Makrolon
Glass
Glass
Glass
Glass
7.1 oz
7.1 oz
7.1 oz
7.1 oz
Quick
disconnect
type V15
Quick
disconnect
type V15
Quick
disconnect
type V15
Quick
disconnect
type V15
HOUSING MATERIAL
LENS
WEIGHT
APPROVALS
ELECTRICAL CONNECTION
See pages 652-660
ADDITIONAL DATA
*NPN normally open, NPN normally closed, PNP normally open, or PNP normally closed
†
See dimensional drawings for LED functions.
Stocked item
Typical delivery 4 weeks or less
Consult factory for all other models
648
Subjecttomodificationswithoutnotice
Pepperl+FuchsGroup
USA:+13304860001
www.pepperl-fuchs.com
[email protected]
Germany:+496217760
[email protected]
CopyrightPepperl+Fuchs
Singapore:+6567799091
[email protected]
Photoelectric Sensors
DK20/DK21 Contrast Sensors
Specifications
SENSITIVITY ADJUSTMENT
TEACH METHOD
MODEL NUMBER(S)
OUTPUT: Transistor,
/110 or /35b
Normally Open or
Normally Closed
25mm ±6mm
25mm ±6mm
50mm
Yes
Yes
Yes
Yes
Static mode
Dynamic mode
Dynamic mode
Static mode
DK20-25/B/110/124
DK21-25/110/124
DK21-25/B/110/124
DK20/35b
—
—
—
DK20/35b/79b
4-in-1*
4-in-1*
4-in-1*
4-in-1*
—
—
—
4-in-1*, with analog
0.3-10mA (load ≤600Ω)
LOAD CURRENT
200 mA max.
200mA max.
200mA max.
200mA max.
VOLTAGE DROP
≤ 2.5 VDC
≤2.5VDC
≤2.5VDC
≤2.5VDC
SHORT CIRCUIT AND
OVERLOAD PROTECTION
Yes
Yes
Yes
Yes
REVERSE POLARITY
PROTECTION
Yes
Yes
Yes
Yes
SUPPLY VOLTAGE
10-30 VDC
10-30VDC
10-30VDC
10-30VDC
VOLTAGE RIPPLE
10%
10%
10%
10%
Yes (1)†
Yes (1)†
Yes (1)†
Yes (1)†
/79b
LED(s)
CURRENT CONSUMPTION
OPERATING MODE
RESPONSE TIME
SWITCHING FREQUENCY
STANDARDS
PROTECTION (IEC)
LIGHT SPOT SIZE
AND ORIENTATION
LIGHT SOURCE
TEMPERATURE
RANGE
≤ 70 mA
≤60mA
≤60mA
≤70mA
Light on/dark on
Light on/dark on
Light on/dark on
Light on/dark on
30 µs
30µs
30µs
30µs
16.5 kHz
16.5kHz
16.5kHz
16.5kHz
EN 60947-5-2
EN 60947-5-2
EN 60947-5-2
EN 60947-5-2
IP67
IP67
IP67
IP67
ø 3 mm
2 x 8.5mm,
parallel to housing
ø 3mm
3 x 16mm,
parallel to housing
Green, red, or blue LED
Green, red or blue LEDs
Green, red or blue LEDs
Green, red, or blue LED
WORKING
-4 ºF to +140 ºF
-4 ºF to +140 ºF
-4 ºF to +140 ºF
-4 ºF to +140 ºF
STORAGE
-4 ºF to +167 ºF
-4 ºF to +167 ºF
-4 ºF to +167 ºF
-4 ºF to +167 ºF
Makrolon
Makrolon
Makrolon
Makrolon
Glass
Glass
Glass
Glass
7.1 oz
7.1 oz
7.1 oz
7.1 oz
Quick
disconnect
type V15
Quick
disconnect
type V15
Quick
disconnect
type V15
Quick
disconnect
type V15
HOUSING MATERIAL
LENS
WEIGHT
Photoelectric Contrast Sensors
25 mm ±6 mm
SENSING RANGE
APPROVALS
ELECTRICAL CONNECTION
See pages 652-660
ADDITIONAL DATA
*NPN normally open, NPN normally closed, PNP normally open, or PNP normally closed
†
See dimensional drawings for LED functions.
Stocked item
Typical delivery 4 weeks or less
Consult factory for all other models
Subjecttomodificationswithoutnotice
Pepperl+FuchsGroup
USA:+13304860001
www.pepperl-fuchs.com
[email protected]
Germany:+496217760
[email protected]
CopyrightPepperl+Fuchs
Singapore:+6567799091
[email protected]
649
Photoelectric Sensors
DKE20/DKE21 Contrast Sensors
Sensing Characteristics
SENSITIVITY ADJUSTMENT
TEACH METHOD
MODEL NUMBER(S)
OUTPUT: Transistor,
9.5 mm ±3 mm
9.5 mm ±3 mm
Yes
Yes
Static mode
Dynamic mode
DKE20-9.5/110/124
DKE21-9.5/110/124
—
—
4-in-1*
4-in-1*
—
—
LOAD CURRENT
200 mA max.
200 mA max.
VOLTAGE DROP
≤ 2.5 VDC
≤ 2.5 VDC
SHORT CIRCUIT AND
OVERLOAD PROTECTION
Yes
Yes
REVERSE POLARITY
PROTECTION
Yes
Yes
/110
Normally Open or
Normally Closed
10-30 VDC
10-30 VDC
VOLTAGE RIPPLE
10%
10%
LED(s)
Yes (1)†
Yes (1)†
CURRENT CONSUMPTION
≤ 70 mA
≤ 60 mA
Light on/dark on
Light on/dark on
30 µs
30 µs
RESPONSE TIME
SWITCHING FREQUENCY
STANDARDS
16.5 kHz
16.5 kHz
EN 60947-5-2
EN 60947-5-2
PROTECTION (IEC)
IP67
IP67
LIGHT SPOT SIZE
AND ORIENTATION
1 x 4 mm,
parallel to housing
1 x 4 mm,
parallel to housing
LIGHT SOURCE
TEMPERATURE
RANGE
60%
40%
20%
0
10
20
30
40
-4 ºF to +140 ºF
-4 ºF to +167 ºF
Stainless steel
Stainless steel
Glass
RedLED
BlueLED
GreenLED
6
4
2
10
20
x
-4 ºF to +167 ºF
18.7 oz
DK20-9.5/79b
8
0
STORAGE
18.7 oz
30
40
DistanceX[mm]
APPROVALS
ELECTRICAL CONNECTION
Quick
disconnect
type V15
ADDITIONAL DATA
Quick
disconnect
type V15
See pages 652-660
*NPN normally open, NPN normally closed, PNP normally open, or PNP normally closed
†
See dimensional drawings for LED functions.
DKE20/DKE21
Stocked item
Typical delivery 4 weeks or less
Consult factory for all other models
650
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60
0
Green, red, or blue LED
Glass
50
DistanceX[mm]
10
-4 ºF to +140º F
WEIGHT
80%
x
Green, red, or blue LED
LENS
RedLED
BlueLED
GreenLED
100%
0%
WORKING
HOUSING MATERIAL
DK(E)20-9.5,DK(E)21-9.5
Analog Output
SUPPLY VOLTAGE
OPERATING MODE
Relative Sensitivity
120%
RelativeSensitivity
SENSING RANGE
OuputCurrent[mA]
Photoelectric Contrast Sensors
Specifications
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50
60
Photoelectric Sensors
DK34/DK35 Contrast Sensors
Specifications
Sensing Characteristics
Low Contrast
9.5 mm ±3 mm
Yes
Yes
Static mode
Dynamic mode
DK34-9.5/110/124
DK35-9.5/110/124
—
—
4-in-1*
4-in-1*
—
—
LOAD CURRENT
200 mA max.
200 mA max.
VOLTAGE DROP
≤ 2.5 VDC
≤ 2.5 VDC
SHORT CIRCUIT AND
OVERLOAD PROTECTION
Yes
Yes
REVERSE POLARITY
PROTECTION
Yes
Yes
SUPPLY VOLTAGE
10-30 VDC
10-30 VDC
VOLTAGE RIPPLE
10%
10%
Yes (1)†
Yes (1)†
TEACH METHOD
MODEL NUMBER(S)
OUTPUT: Transistor,
/110
Normally Open or
Normally Closed
LED(s)
CURRENT CONSUMPTION
OPERATING MODE
RESPONSE TIME
SWITCHING FREQUENCY
STANDARDS
≤ 75 mA
≤ 75 mA
Light on/dark on
Light on/dark on
30 µs
30 µs
16.5 kHz
16.5 kHz
EN 60947-5-2
EN 60947-5-2
IP67
IP67
1 x 4 mm,
parallel to housing
1 x 4 mm,
perpendicular to housing
Green, red, or blue LED
Green, red, or blue LED
WORKING
-4 ºF to +140 ºF
-4 ºF to +140 ºF
STORAGE
-4 ºF to +167 ºF
-4 ºF to +167 ºF
Polycarbonate
Polycarbonate
HOUSING MATERIAL
LENS
WEIGHT
Glass
Glass
7.1 oz
7.1 oz
Quick
disconnect
type V15
Quick
disconnect
type V15
RedLED
BlueLED
GreenLED
80%
60%
40%
20%
0
10
20
x
LIGHT SPOT SIZE
AND ORIENTATION
TEMPERATURE
RANGE
DK34-9.5,DK35-9.5
100%
0%
PROTECTION (IEC)
LIGHT SOURCE
Relative Sensitivity
120%
RelativeSensitivity
SENSITIVITY ADJUSTMENT
30
40
DistanceX[mm]
50
60
Photoelectric Contrast Sensors
9.5 mm ±3 mm
SENSING RANGE
APPROVALS
ELECTRICAL CONNECTION
ADDITIONAL DATA
See pages 652-660
*NPN normally open, NPN normally closed, PNP normally open, or PNP normally closed
†
See dimensional drawings for LED functions.
Stocked item
Typical delivery 4 weeks or less
Consult factory for all other models
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651
Photoelectric Sensors
Wiring Diagrams
DC
Photoelectric Contrast Sensors
Quick Disconnect
Quick Disconnect
Note: Wiring diagrams show quick disconnect pin numbers.
Note: Wiring diagrams show quick disconnect pin numbers.
V1 Type
V15 Type
Male Receptacle End View
Light On/Dark On
Black
NPNOutput
/110
1 Brown
4 Black
(+)
Load
3 Blue
(–)
3
1
2
Load
Load
/110
/35b
4
3
1
2
(–)
1 Brown
4 Black
5 Gray
Load
Brown
Black
1 Brown
4 Black
2 White
3 Blue
(+)
Load
Blue
Load
(–)
4
3
1
2
Load
79b/110
1 Brown
4 Black
2 White
Load
3 Blue
(+)
Load
3
1
2
(–)
Load
1 Brown
5 Gray
4 Black
(+)
Black
(+)
Blue
Control Input*
Load
4
5
1
(–)
3
(+)
Load
(–)
Control Input*
Brown
Gray
(+)
/79b
Control Input*
Blue
1 Brown
(+)
4 Black Load
5 Gray
Control Input*
2 White Load
3 Blue
4
1
3
White Load
(–)
2
5
Brown
(–)
Load
Gray
2
NPNandAnalogOutputs
Blue
4
(–)
Control Input*
Brown
Light On/Dark On
Black
Load
Gray
2
* Control Input: RemoteTeach[forDK(E)2,DK3models]
TransmitterdeactivatedwhenV+applied[onDK10-LASmodels]
White
PIN 2: AnalogOutput0.3-10mA(load≤600Ω)
PNPandAnalogOutputs
3
(–)
PNPOutput
/110
/35b
(–)
Brown
Light On/Dark On
1
Light On/Dark On
(–)
(+)
NPNandAnalogOutputs
79b/110
5
Black
3 Blue
Light On/Dark On
4
Control Input*
3 Blue
(+)
Blue
(+)
Load
* Control Input: RemoteTeach[forDK(E)2,DK3models]
TransmitterdeactivatedwhenV+applied[onDK10-LASmodels]
Blue
4 Black
3 Blue
NPNOutput
Black
(+)
Male Receptacle End View
Light On/Dark On
(–)
Brown
PNPOutput
1 Brown
Blue
4
Light On/Dark On
/110
Black
(+)
Load
PIN 2: AnalogOutput0.3-10mA(load≤600Ω)
* Control Input: RemoteTeach[forDK(E)20models]
TransmitterdeactivatedwhenV+applied[onDK10-LASmodels]
(–)
Load
White
Brown
PIN 2: AnalogOutput0.3-10mA(load≤600Ω)
Black
Light On/Dark On
(+)
Blue
PNPandAnalogOutputs
1 Brown
(+)
5 Gray
Control Input*
4 Black
2 White Load
Load
3 Blue
/79b
(–)
4
1
5
3
2
Load
White
Brown
Gray
(–)
Load
(+)
Control Input*
PIN 2: AnalogOutput0.3-10mA(load≤600Ω)
* Control Input: RemoteTeach[forDK(E)20models]
TransmitterdeactivatedwhenV+applied[onDK10-LASmodels]
Gray
Light On
1 Brown
(+)
4 Black Load
5 Gray
Control Input*
2 White Load
3 Blue
/49
4-in-1 Output
The 4-in-1 technology
offers a normally open or
normally closed output,
which automatically detect
their connected loads and either sink
current (NPN output) or source current
(PNP output). A single sensor with a
4-in-1 output can operate in four output
configurations, either NPN Light On, NPN
Dark On, PNP Light On, or PNP Dark On.
4
1
3
5
(–)
Black
(+)
Load
* Control Input: TransmitterdeactivatedwhenV+applied
Normally Open
Male Receptacle End View
NPNOutput
1 Brown
/136
2 White
5 Gray
3 Blue
Teach Input
3 Blue
PNPOutput
4 Black
Teach Input
(–)
5
2 White
3 Blue
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3
2
Load
White
Load
Gray
(+)
(–)
Teach Input
Brown
(+)
Black
(+)
Blue
4
Teach Input
5
1
Load
3
2
(–)
Brown
(+)
1
Load
(–)
Teach Input
3
5
2
(–)
(+)
Blue
4
Teach Input
Load
Gray Teach Input
Gray
1 Brown
5 Gray
(–)
Teach Input
Blue
4
1
Load
Normally Closed
PNPOutput
Gray
Black
3 Blue
/136
3
2
Brown
(+)
1 Brown
5 Gray
5
(–)
1 Brown
5 Gray
4
1
Load
NPNOutput
4 Black
Blue
(+)
Normally Closed
/136
/136
652
White Load
2
Brown
(–)
Normally Open
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Control Input*
Blue
NPNandPNPOutputs
(–)
Load
White
Brown
(+)
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See pages
827-874 for
cordsets
Photoelectric Sensors
Light Spot Orientations for DK10-9.5, DK(E)20 and DK(E)21 Contrast Sensors*
Light Spot Option /A
Rectangularlightspot
perpendiculartohousing
Light Spot Option /B
Circularlightspot
*Not drawn to scale
Contrast Sensor Programming
DK10(-LAS) Programming
Programming the DK10 as indicated allows the switching
threshold to be set exactly midway between the light and
dark measured values. The greater the number of times
that the sensitivity adjustment is turned in Step 6, the
larger the contrast is.
1.Connect the supply
voltage to the wires noted
in the wiring diagram.
2.Set the Light on/dark on
switch for Light On. Light
On mode is represented
by the clear circle, and
Dark On mode is represented by the black circle.
DK(E)20/DK34 Programming
3.Aim the light spot at the lighter color object (either
the target or the background). For glossy or reflective
surfaces, the sensor should be angled at 10º to 15º off
the perpendicular axis from the target. If the yellow LED
turns on, turn the sensitivity adjustment in the direction
of “-” until the LED turns off. If the yellow LED is not on,
go to the next step.
2.Aim the light spot at the
target mark. For glossy
or reflective surfaces, the
sensor should be angled
at 10º to 15º off the perpendicular axis from the target.
4.Turn the sensitivity adjustment in the direction of “+” and
stop as soon as the yellow LED turns on.
5.Aim the light spot at the darker color object (opposite of
the object chosen in Step 3) and confirm that the yellow
LED turns off.
6.Turn the sensitivity adjustment in the direction of “+”
while counting the number of turns and stop as soon as
the yellow LED turns on.
7.Turn the sensitivity adjustment in the direction of “-” by
half the number of turns counted in Step 6.
8.If Dark On operation is desired, change the Light on/dark
on switch to Dark On.
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Photoelectric Contrast Sensors
Standard Light Spot
Rectangularlightspot
paralleltohousing
1.Connect the supply
voltage to the wires noted
in the wiring diagram.
3.Press the Teach push button on the sensor or apply V+
to the Teach Input wire for a minimum of 50ms. The LED
should flash slowly (at a rate of approximately 1Hz).
4.Aim the light spot at the background.
5.Press the Teach push button on the sensor or apply V+
to the Teach Input for a minimum of 50ms. The LED will
now turn on when the target mark is present and off
when it is absent after a successful teach. If the teach
was not successful or the contrast was not sufficient, the
LED flashes quickly (at a rate of approximately 4Hz).
Programming the DK(E)20 as indicated above sets the
switching threshold exactly in the middle of the target and
background values. The above procedure is for Light On
mode. For Dark On mode, reverse steps 2 and 4.
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Photoelectric Sensors
Contrast Sensor Programming
Photoelectric Contrast Sensors
DK(E)21/DK35 Programming
2.Move the potentiometer to TB (Teach Background)
position for at least 1 second. The yellow and green
LEDs will flash alternately at 2.5Hz. The sensor’s light
spot should be moved to the background at the sensing
range.
1.Connect the supply
voltage to the wires noted
in the wiring diagram.
2.Aim the light spot at the
background for Light On
mode, or at the target
mark for Dark On mode.
For glossy or reflective surfaces, the sensor should be
angled at 10º to 15º off the perpendicular axis from the
target.
3.Move the potentiometer to S (Switch) position. If the teach
was successful, the sensor will be ready for operation with
the yellow LED indicating output status. If the teach was
not successful due to insufficient contrast, the yellow and
green LEDs will flash fast alternately (8Hz).
3.Press and hold the Teach push button on the sensor
or apply V+ continuously to the Teach Input wire for a
minimum of 50 ms.
• Steps 1 and 2 can be reversed.
4.Move the target mark into the light spot for a minimum of
1ms for Light On mode, or move the background into the
light spot for a minimum of 1ms for Dark On mode.
5.Release the Teach push button or remove the V+
signal to the Teach Input wire, and the programming
ends 50ms afterwards. The LED will turn on when the
target mark is present and off when it is absent after a
successful teach. If the teach was not successful or the
contrast was not sufficient, the LED flashes quickly (at a
rate of approximately 4 Hz).
Programming the DK(E)21 as indicated above sets the
switching threshold exactly in the middle of the target and
background values.
• When re-teaching, it is possible to only re-teach one
setting (target or background) and keep the previous
teach of the other setting.
Dynamic Mode By Potentiometer
1.Aim the sensor’s light spot at the background at the
sensing range.
2.Move the potentiometer to TD (Teach Dynamic) position
for at least 1 second. The yellow and green LEDs will
flash simultaneously at 1Hz.
3.Move the sensor’s light spot onto or through the target.
The potentiometer should be moved to S (Switch)
position.
Programming Hints
• The maximum color variation from the background in
Step 3 is taught as the target.
DK12 Programming
The DK12 can be programmed in one of two teach modes.
Static Mode By External Teach Input
1.Static Mode is when the target and background are
taught in two separate steps. The target and background
can be programmed in either order.
1.The potentiometer should remain in the default setting of
S (Switch) position.
2.Dynamic Mode is when the target and background are
taught in one continuous, non-stop step. This mode
allows “on-the-fly” detection of moving targets, usually
for time-critical applications.
Programming Hints
The DK12 can be programmed by one of two teach
methods.
1.The 4-position potentiometer on the housing can be
used.
2.An external teach input to the sensor can enact a teach
cycle. A controller can initiate a teach cycle to the sensor
for a rapid and automatic change to a new contrast.
Static Mode By Potentiometer
2.Apply a V+ pulse of width 220ms –250ms to the Teach
Input wire. The yellow and green LEDs will flash
simultaneously at 2.5Hz. The sensor’s light spot should
be moved to the target at the sensing range.
3.Apply a V+ pulse of width 320ms – 350ms to the
Teach Input wire. The yellow and green LEDs will flash
alternately at 2.5Hz. The sensor’s light spot should be
moved to the background at the sensing range.
4.Apply a V+ pulse of width 120ms – 150ms to the Teach
Input wire. If the teach was successful, the sensor will
be ready for operation with the yellow LED indicating
output status. If the teach was not successful due to
insufficient contrast, the yellow and green LEDs will flash
fast alternately (8Hz).
1.Move the potentiometer to TM (Teach Mark) position for
at least 1 second. The yellow and green LEDs will flash
simultaneously at 2.5Hz. The sensor’s light spot should
be moved to the target at the sensing range.
654
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Photoelectric Sensors
Contrast Sensor Programming
DK12 Programming (cont.)
Programming Hints
Potentiometer Position
Mode
S
Switch
• Steps 2 and 3 can be reversed.
TM
Teach Mark
TB
Teach Background
TD
Teach Dynamic
• During a Teach Input, the potentiometer is disabled.
Modes Selected by External Teach Input
Dynamic Mode By External Teach Input
1.The potentiometer should remain in the default setting of
S (Switch) position.
V+ Pulse Width (ms)
2.Aim the sensor’s light spot at the background at the
sensing range.
3.Apply a V+ pulse of width 420ms – 450ms to the
Teach Input wire. The yellow and green LEDs will flash
simultaneously at 1Hz.
4.Move the sensor’s light spot onto or through the target.
A V+ pulse of width 120ms – 150ms should be applied to
the Teach Input wire.
Programming Hints
• The maximum color variation from the background in
Step 4 is taught as the target.
• During a Teach Input, the potentiometer is disabled.
Other Programming Notes:
When programming by potentiometer, the potentiometer
can be turned in either direction and must be in
each position for at least one second. The LEDs will
acknowledge completion of each step as indicated in the
programming information. When the potentiometer position
changes, the last seen color is stored as the taught value.
When a teach is successful, the DK12 automatically selects
the most suitable color transmitter (either red, green, or
blue) for the application. The switching threshold is set
to halfway between the target color and the background
color. The complementary outputs change state when the
mark is detected.
Mode
420 - 450
Teach Dynamic
320 – 350
Teach Background
220 – 250
Teach Mark
120 – 150
Switch
LED Diagnostics
LED
LED Status
Indicates
Green
ON solid
Power ON
Green
Flashing (4Hz)
Short-circuited
output
Green
Flashing (0.8Hz) Under-voltage
Yellow
OFF
Background detected
Yellow
ON solid
Target detected
Green/Yellow
Flashing
Simultaneously (1Hz)
Teach Dynamic
Green/Yellow
Flashing
Simultaneously (2.5Hz)
Teach Mark
Green/Yellow
Flashing Alternately
(2.5Hz)
Teach Background
Green/Yellow
Flashing Alternately
(8Hz)
Teach Fault
Photoelectric Contrast Sensors
• When re-teaching, it is possible to only re-teach one
setting (target or background) and keep the previous
teach of the other setting.
Modes Selected by Potentiometer
Yellow LED
4-position potentiometer
When a teach is not successful due to insufficient contrast,
all three color transmitters are deactivated while the yellow
and green LED’s rapidly flash at 8 Hz. After 7 seconds,
the sensor then returns to normal switch mode without
changing the saved settings.
Green LED
For glossy targets or backgrounds, the sensor should be
angled by ≈10º from perpendicular.
Yellow LED
DK12
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655
Photoelectric Sensors
Dimensions (mm)
DK10
Sensitivityadjustment
LED
Yellow:OutputStatus
_
Lighton/darkonswitch
4
33
60.8
16.5
Cover*
M5x8
38.6
21
28
28
85.6
28
23.5
Lens*
ScrewDepth5 19
4
19
19
Photoelectric Contrast Sensors
+
Sens.
M12x1
1.5
*Interchangeable
47.9
19
DK10-LAS
Sensitivityadjustment
LED
Yellow:OutputStatus
+
_
Sens.
Lighton/darkonswitch
4
16.5
M5x8
M12x1
1.5
656
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ScrewDepth5 28
21
19
38.6
28
28
85.6
23.5
19
4
33
60.8
Photoelectric Sensors
Dimensions (mm)
DK12
10
M4/4deep
2
1
15
5
3
7.5
YellowLED*
41.5
Opticalaxis
49
2
22.5
ø4.5
5.3
65
S -SwitchingMode
TM -TeachINMark
TD -TeachINDynamic
TB -TeachINBackground
90°
5.5
7
19.5
M12x1
17.5
YellowLED*
YellowLED*
GreenLED*
4-positionpotentiometer
Photoelectric Contrast Sensors
4
*SeeDK12 ProgrammingforLEDfunctions.
LED
Yellow:OutputStatus
Yellow(flashing,1Hz):TeachMode
Yellow(flashing,4Hz):InsufficientContrast
DK(E)20, DK(E)21
TEACH-IN
T
TeachPushButton
4
33
60.8
16.5
Cover†
M5x8
21
19
38.6
28
28
85.6
28
23.5
Lens†
ScrewDepth5 19
4
19
M12x1
1.5
47.9
†
Interchangeable
19
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657
Photoelectric Sensors
Dimensions (mm)
LED
Yellow:OutputStatus
Yellow(flashing,1Hz):TeachMode
Yellow(flashing,4Hz):InsufficientContrast
DK20/35b
TeachPushButton
21
33
60.8
16.5
Cover*
28
M5x8
38.6
21
28
28
Lens*
ScrewDepth5 85.6
23.5
19
4
19
19
Photoelectric Contrast Sensors
TeachIn
M12x1
1.5
*Interchangeable
47.9
19
LED
Yellow:OutputStatus
Yellow(flashing,1Hz):TeachMode
Yellow(flashing,4Hz):InsufficientContrast
DK34, DK35
TEACH-IN
T
TeachPushButton
16.5
60.8
19
33
M5x5(8x)
28
28
21
19
38.6
28
85.6
23.5
Lens
M12x1
1.5
658
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Photoelectric Sensors
Accessories
(Dimensions in mm)
Mounting Bracket Model OMH-DK
Right-angle mounting bracket for
DK10/DK2.../DK3... Series sensors.
Mounting Bracket Model OMH-MLV12-HWG
Long right-angle mounting bracket for DK12 Series sensors.
11
5.1
12.7
8.65
R0
.5
R2
12.4
R6.4
7
6
Ø
4.
6.5
4.5
2.6
46.5
20
10
31.75
90º
4.3
30º
R2
1
19
50.8
R1
1.5
11.4
20.5
24.2
13.3
7.6
5.6
18
7.6
R3.3
30º
8.85
7.65
R2.6
22.3
50.8
8
R2.5
Material:303StainlessSteel
Material:Nickel-platedsteel
Mounting Bracket Model OMH-DK-1
Flat mounting bracket for DK10/DK2.../DK3... Series sensors.
30º
50.8
2.6
22.3
7.65
8
R6.4
Mounting Bracket Model OMH-MLV12-HWK
Short right-angle mounting bracket for DK12 Series sensors.
12.4
R2.6
Photoelectric Contrast Sensors
30
5.3
15.2
30
5.3
7.6
11
30º
19
8.85
R2
4.5
10
26.5
30º
Material:303StainlessSteel
4.3
4.
1
.5
R0
6
Ø
13.3
7
R1
6.5
11.4
7.60
R2
15.2
12.7
5.1
20.5
R3.3
1.5
82.6
18
5.6
Dovetail Mounting Clamp Model OMH-K01
for DK12 Series sensors.
30º
Material:Nickel-platedsteel
M4
ø4.2
90º
14
8.6
ø8.5
9.5
19
M4
15.5
10
Material:AnodizedAluminum
Subjecttomodificationswithoutnotice
Pepperl+FuchsGroup
USA:+13304860001
www.pepperl-fuchs.com
[email protected]
Germany:+496217760
[email protected]
CopyrightPepperl+Fuchs
Singapore:+6567799091
[email protected]
659
Photoelectric Sensors
Accessories
26
19
51.5
Mounting Bracket Model OMH-06
for DK12 Series sensors.
10
3.2
45.5
Ø1
2.2
37
Material:Zinc-platedaluminum
Photoelectric Contrast Sensors
(Dimensions in mm)
See pages
803-854 for
cordsets
660
Subjecttomodificationswithoutnotice
Pepperl+FuchsGroup
USA:+13304860001
www.pepperl-fuchs.com
[email protected]
See pages
797-802 for
reflectors
Germany:+496217760
[email protected]
See pages 855-896
for additional
accessories
CopyrightPepperl+Fuchs
Singapore:+6567799091
[email protected]