Sensing distance
Supply voltage
12 to 24 VDC
Output
3 to 10 cm, 5 to 25 cm
80 mA
100 mA
Photoelectric Sensor
Focusable Sensors with Built-in DC
Amplifiers
Pinpoint focusable and area focusable models
eliminate background objects.
Ideal for precise detection of level/height, edges,
small holes and openings, objects touching one
another, objects inside transparent covers.
E3S-LS
Ordering Information
Sensing method
Area focusable reflective
Pinpoint focusable reflective
Sensing distance
NPN output
5 to 25 cm (continuously variable)
3 to 10 cm (continuously variable)
3
±
0.5 cm
E3S-LS20XE4
E3S-LS10XE4
E3S-LS3C1D
E3S-LS3RC4
Model
PNP output
E3S-LS20XB4
E3S-LS10XB4
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Application Examples
E3S-LS10X
Sensing of objects utilizing
their difference in luster.
Sensing of objects traveling in
contiguous succession.
Sensing of small holes, narrow
openings, or unevenness.
Pencils
E3S-LS20X
Sensing of objects utilizing
their difference in luster.
Sensing of objects traveling in
contiguous succession.
Sensing of small holes, narrow
openings, or evenness.
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1
E3S-LS
E3S-LS
Specifications
Ratings/Characteristics
Item
Power supply voltage
E3S-LS10Xj4
E3S-LS20Xj4
E3S-LS3C1D
5 VDC –10% to
24 VDC +10%,
ripple (p-p): 10% max.
3±0.5 cm
E3S-LS3RC4
12 VDC –10% to
24 VDC +10%,
ripple (p-p): 10% max.
12 VDC –10% to 24 VDC +10%,
ripple (p-p): 10% max.
40 mA max.
3 to 10 cm (variable
with distance
adjuster)
0.5 mm max. at 3 cm
3 mm max. at 10 cm
1 x 1 cm white mat
paper
Load
Voltage
output
Response time (ON, OFF)
Sensitivity
Operation mode
Model with suffix -E4:
Model with suffix -B4:
1.1 V max. at 80 mA
1 ms max.
Adjustable
Wire-selectable (Refer to
“Output Circuit.”)
5 to 25 cm (variable
with distance
adjuster)
5% max.
5 x 7.5 cm white mat
paper
80 mA max.
100 mA max.
2 V max.
ON: 3 ms
OFF: 100 ms
---
---
1 ms max.
Adjustable
Wire-selectable
(Refer to
“Output
Circuit.”)
Light indicator (red)
Current consumption
Sensing distance
Differential travel
Standard objects
Control
output
ou pu
DC
solid-state
so d s a e
---
1 x 1 cm white mat paper
30 mA max.
50 mA max.
Indicators
Circuit protection
Mutual interference protection
Enclosure rating
Housing material
Light source
Ambient temperature
IEC 144
NEMA
Light indicator (red), stability indicator (green)
Short circuit
Provided
IP67
1, 3, 4X, 6, 12
Metal
Red LED
Operating: –25 to 55
°C
Infrared LED
Operation indicator
(red)
---
IP40
---
Plastic
Provided
Red LED
Operating: –10 to 55
°C
2
E3S-LS
E3S-LS
Engineering Data
Excess Gain Ratio
E3S-LS20XE4
E3S-LS10XE4
Peak receiver
output at 3 cm
Peak receiver output at 5 cm
Setting
distance
E3S-LS3RC4
Standard sensing object
(white paper)
Standard sensing
object (black
carbon paper)
Excess gain ratio
Excess gain ratio
Peak receiver
output at 10 cm
Excess gain ratio
Operating
voltage
Operating
level
Sensing distance (cm)
Note:
Sensing distance (cm)
1. Sensitivity adjustor: Set to MAX.
2. This graph shows the relationship between the
optical output and setting distance by adjusting
the sensitivity adjustor so that the optical output
will be maximum at a sensing distance of 3, 5, or
10 cm.
Sensing distance (cm)
Operating Range
E3S-LS20XE4
Operating position Y (mm)
(with minimum sensing distance)
E3S-LS10XE4
Optical axis
E3S-LS3RC4
Operating position Y (mm)
Standard object
(5 x 57.5 cm)
Operating
distance x
Operating position Y (mm)
Standard object
(1
×
1 cm)
Sensing object
size: 10 x 10 mm
Setting distance (mm)
Distance: Min.
Distance X (cm)
Distance: Max.
Distance: 3 cm
Distance: 10 cm
Sensitivity
E3S-LS20XE4
Distance (cm)
Short side
White mat paper
Long side
Object sensed
Ratio of short side to long side = 2:3
Size of object (cm)
3
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