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
CX-400
Amplier
Built-in
245
Compact Photoelectric Sensor CX-400 SERIES
Correlation between sensing object size and sensing range
Sensing eld
CX-422□
Diuse reective type
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.
For plotting the left graph, the sensitivity has been set such that
a 200 × 200 mm 7.874 × 7.874 in white non-glossy paper is just
detectable at a distance of 800 mm 31.496 in.
SENSING CHARACTERISTICS (TYPICAL)
CX-423□
Diuse reective type
ℓ
40 20 0 20 40
1.575 0.787 0.787 1.575
500
19.685
1,000
39.370
Setting distance L (mm in)
Left
Right
Center
Operating point ℓ (mm in)
Sensor
200 × 200 mm
7.874 × 7.874 in
White non-
glossy paper
L
0
0
1.969 3.937
400
15.748
800
31.496
50 100 150 200
5.906 7.874
a × a mm
White non-
glossy paper
L
Sensor
White non-glossy paper
side length a (mm in)
Sensing range L (mm in)
Correlation between sensing object size and sensing rangeSensing eld
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.
For plotting the left graph, the sensitivity has been set such that
a 200 × 200 mm 7.874 × 7.874 in white non-glossy paper is just
detectable at a distance of 200 mm 7.874 in.
ℓ
0.079 0.039 0.039 0.079
2 1 0 1 2
0
100
3.937
200
7.874
N6
White
Setting distance L (mm in)
Left
Right
Center
Operating point ℓ (mm in)
200 × 200 mm
7.874 × 7.874 in
Non-glossy paper
Sensor
L
N6
White
0
100
3.937
200
7.874
1.969 3.937
a × a mm
Non-glossy paper
Non-glossy paper
side length a (mm in)
5.906 7.874
50 100 150 200
L
Sensor
Sensing range L (mm in)
Correlation between lightness and sensing range
The sensing region is
represented by oblique lines in
the left gure.
However, the sensitivity should
be set with an enough margin
because of slight variation in
products.
Emitted beam
N2 N4 N8N6
100
3.937
200
7.874
N2 N5 N7 N9N1
N4
N6 N8
N3
Sensing
region
Sensing range L (mm in)
Dark Light
0
Lightness
250
9.843
200
7.874
150
5.906
50
1.969
0
100
3.937
110
4.331
ø5 mm
ø0.197 in
ø2.5 mm
ø0.098 in
ø2.2 mm
ø0.087 in
ø2 mm
ø0.079 in
ø4 mm
ø0.157 in
Distance L (mm in)
Visible spot range
Lightness shown on the left
may dier slightly from the
actual object condition.