Datasheet

FIBER
SENSORS
LASER
SENSORS
PHOTO-
ELECTRIC
SENSORS
MICRO
PHOTO-
ELECTRIC
SENSORS
AREA
SENSORS
SAFETY
COMPONENTS
PRESSURE
SENSORS
INDUCTIVE
PROXIMITY
SENSORS
PARTICULAR
USE
SENSORS
SENSOR
OPTIONS
WIRE-
SAVING
SYSTEMS
MEASURE-
MENT
SENSORS
STATIC
CONTROL
DEVICES
LASER
MARKERS
PHOTO-
ELECTRIC
SENSORS
Selection
Guide
Amplifier
Built-in
EX-10
CX-400
EX-20
EX-30
EX-40
EQ-30
EQ-500
MQ-W
RX-LS200
RX
CY
PX-2
RT-610
Amplifier-
separated
Power Supply
Built-in
NX5
VF
SU-7 / SH
SS-A5 / SH
Other
Products
EX-20
Amplifi er
Built-in
Ultra-compact Photoelectric Sensor EX-20 SERIES
276
SENSING CHARACTERISTICS (TYPICAL)
EX-23□
Thru-beam type
Parallel deviation Angular deviation Parallel deviation with round
slit masks (ø0.5 mm ø0.020 in)
Parallel deviation with rectangular slit
masks (0.5 × 3 mm 0.020 × 0.118 in)
100 50 0 50 100
ℓ
L
Receiver
Emitter
3.937 1.969 1.969 3.937
6.562
3.281
Setting distance L (m ft)
Operating point ℓ (mm in)
CenterLeft Right
0
1
2
100 50 0 50 100
θ
L
Emitter
Receiver
6.562
3.281
Setting distance L (m ft)
Operating point θ ( ° )
CenterLeft Right
0
1
2
1020 0 10 20
0
100
200
300
400
Operating point ℓ (mm in)
CenterLeft Right
Slit on one
side
Slit on both
sides
Receiver
Emitter
ℓ
L
0.787 0.394 0.394 0.787
7.874
11.811
3.937
15.748
Setting distance L (mm in)
40 20 0 20 40
0
0.5
1
Slit on one
side
Slit on both
sides
Receiver
Emitter
ℓ
L
1.575 0.787 0.787 1.575
3.281
1.640
Setting distance L (m ft)
Operating point ℓ (mm in)
CenterLeft Right
EX-29□
Retrorefl ective type
Parallel deviation Angular deviation
20 10 0 10 20
0
100
200
L
Sensor
ℓ
Reflector
(RF-200)
0.787 0.394 0.394 0.787
7.874
3.937
Setting distance L (mm in)
Operating point ℓ (mm in)
CenterLeft Right
40 20 0 20 40
0
100
200
Sensor
angular
deviation
Reflector
angular
deviation
Sensor
Reflector
(RF-200)
Sensor
angular
deviation
L
θ
Reflector
(RF-200)
Reflector
angular
deviation
θ
L
Sensor
7.874
3.937
Setting distance L (mm in)
Operating angle θ ( ° )
CenterLeft Right
EX-22□
Diffuse refl ective type
Sensing fi eld
0
50
100
150
200
42024
White non-
glossy paper
Gray non-glossy paper
Lightness: 6
ℓ
L
200 × 200 mm
7.874 × 7.874 in
Non-glossy paper
Sensor
Left
Right
Center
Operating point ℓ (mm in)
0.157 0.079 0.079 0.157
7.874
5.906
3.937
1.969
Setting distance L (mm in)
0 50 100 150 200
100
200
Sensing range L (mm in)
White non-glossy paper
side length a (mm in)
L
a × a mm a × a in
White non-glossy
paper
Sensor
1.969 3.937 5.906 7.874
7.874
3.937
Correlation between sensing object size and sensing range
As the sensing object size becomes smaller than the
standard size (white non-glossy paper 200 × 200 mm
7.874 × 7.874 in), the sensing range shortens, as shown
in the left graph.
EX-24□
Convergent refl ective type
Sensing fi elds
Horizontal (left and right) direction • Vertical (up and down) direction •
24024
0
10
20
30
40
ℓ
L
8 mm 0.315 in
Sensor
50 × 50 mm
1.969 × 1.969 in
White
non-glossy
paper
1.575
1.181
0.787
0.394
0.157 0.079 0.079 0.157
Operating point ℓ (mm in)
CenterLeft Right
Setting distance L (mm in)
24024
0
10
20
30
40
Sensor
ℓ
L
6 mm 0.236 in
1.575
1.181
0.787
0.394
0.157 0.079 0.079 0.157
Operating point ℓ (mm in)
CenterLeft Right
Setting distance L (mm in)
50 × 50 mm 1.969 × 1.969 in
White non-glossy paper