Distance-setting Photoelectric Sensor
E3G-L1/L3
CSM_E3G-L1_L3_DS_E_2_1
Effectively Cuts the Influence of
Workpiece Characteristics, Such as
Gloss, Incline, and Color.
Be sure to read
Safety Precautions
on page 12.
Features
A 1-mm-dia. Pin-point Beam
Allows Detection of Minute Objects
Smallest
in the
Industry
E3G-L1
OMRON's unique Hyper LED achieves a pin-
point light source only 1/7 the size of conventional light
sources, with uniform light-intensity distribution. The Hyper
LED achieves stable detection of small objects by eliminating
the dead band that results from the drop-out that commonly
occurs at the center of conventional LEDs.
The clearly visible spot makes it easy to check the optical axis
adjustment and sensing position.
Stable Detection Based Not Only
on Object Color, But Also on
Inclination and Glossiness
First
in the
Industry
The E3G-L1 is 2.6 times more stable than
previous models with inclination characteristics.
The use of the shine-proof optical system with conventional
triangulation reduces the discrepancies in sensing distance
due to object color, surface, and inclination.
(The E3G-L3 is 2.2 times more stable than previous models.)
Shine-proof Optical System
(E3G-L1, E3G-L3)
Light
source
LED
PSD
Error
Previous Distance-
setting Models
Light
source
LED
PSD
Distance
fluctuation
detected due
to slight lifting.
Inten
sity
Center
of
gravity
Intensity
OK
NG
(Lifting of IC)
A low-error distance signal is assured
because an image is formed on the
photosensing device (PSD),
irrespective of the sensing distance.
Detection is also stable with respect to
the inclination of the object.
At some distances, images cannot
be formed on the photosensing
device (PSD). The spot diameter is
large, distance errors occur due to
displacement of the center of
gravity, and detection is unstable
with respect to the inclination of the
object.
1
E3G-L1/L3
Simple Detection of Glossy,
Uneven Objects
First
in the
Industry
Zone Mode
Optimal Background and Conveyor
Teaching.
Double-bar Display Shows Excess Gain at a
Glance.
The Sensor features one-
touch teaching settings. After
the workpiece, background,
and conveyor teaching are
complete, fine adjustment of
the sensitivity can be made in
13 levels for Normal Mode or 5
levels for Zone Mode.
The excess gain in distance or
detecting of small steps can be
easily set.
The operation indicator turns
ON when the light incident
level exceeds a certain
threshold. Excess gain can
also be checked at a glance.
Normal Mode
Selectable
ON
(light)
Threshold
Conveyor (background)
OFF
(dark)
Triangulation with hysteresis of 4%
or less (E3G-L1) is used, so objects
beyond the set distance are not
detected.
At a set distance of 30 mm, steps that
are 1.2 mm high can be detected.
ON (dark)
Threshold
OFF (light)
Threshold
Conveyor (background)
ON (dark, when dark is set for ON)
Glossy, uneven objects are reliably
detected because OFF (light) status
occurs only when the conveyor is
detected, and ON (dark) status
occurs when an object is present.
●
IP67 Waterproofing
●
CE Marking
The Sensor meets the European EMC Directive,
allowing it to be mounted in export devices with
confidence.
A Lineup of M8
Connectors
Easy to disconnect, making
maintenance simple.
Straight
L-shaped
Meets the Needs of All Industries, Including Semiconductors, Electronic Components, Food,
and Packaging
Normal Mode
E3G-L1 (50-mm Models)
Detecting minute electronic
components in a tray
Detecting thin or uneven objects
E3G-L3 (200-mm Models)
Detecting objects on a production line
with a glossy background
IC
No packaging
Zone Mode
E3G-L1 (50-mm Models)
Detecting packaged candies
Detecting tiles on a conveyor
E3G-L3 (200-mm Models)
Detecting packaged confectionery
on a conveyor
Glossy wrapping
paper
Glossy wrapping
paper
2
E3G-L1/L3
Ordering Information
Sensors
Appearance
Connection method
Pre-wired
Sensing/Setting range
5 mm 20 mm 30 mm 50 mm
Red light
Infrared light
Operation mode
Model
NPN output PNP output
E3G-L11
E3G-L12
Min.setting
Max. setting
Setting range:
30 to 50 mm
Connector (M8)
Sensing range:
5 to 50 mm
5 mm 30 mm 50 mm Setting range: 200 mm
Min.setting 50 to 200 mm for white paper
Max.setting
Pre-wired
Light ON
Dark ON
(selectable)
E3G-L15
E3G-L16
E3G-L31
E3G-L32
Connector (M8)
Sensing range:
5 to 200 mm for white paper
E3G-L35
E3G-L36
Accessories (Order Separately)
Mounting Brackets
Appearance
Model
Quantity
Remarks
E39-L139
1
Provided with the E3G-L@1/-L@2
E39-L140
1
Provided with the E3G-L@5/-L@6
Sensor I/O Connectors (M8)
Cable specifications
Straight
Standard Cable
L-shaped
2m
5m
Appearance
Cable type
2m
5m
Four-wire
type
Model
XS3F-M421-402-A
XS3F-M421-405-A
XS3F-M422-402-A
XS3F-M422-405-A
3
E3G-L1/L3
Ratings and Specifications
Sensing method
NPN
output
PNP
output
E3G-L11
E3G-L12
E3G-L15
E3G-L16
Distance-setting
E3G-L31
E3G-L32
E3G-L35
E3G-L36
Model
Item
Sensing range
50 to 200 mm (50
×
50 mm white paper, setting
5 to 50 mm (50
×
50 mm white paper, setting distance: distance: 200 mm)
50 to 150 mm (50
×
50 mm black paper, setting
50 mm)
distance: 150 mm)
30 to 50 mm (50
×
50 mm white paper, black paper)
4% max. of setting distance
50 to 200 mm (50
×
50 mm white paper)
5 to 150 mm (50
×
50 mm black paper)
10% max. of setting distance (typical)
10% max. of setting distance
(at 50 to 150-mm setting distance)
Infrared LED (860 nm)
15-mm dia. max. (at 150-mm sensing distance)
65 mA max.
Setting range
Differential travel
Reflectivity character-
istics (black/white er-
4% max. of setting distance
ror)
Light source (wave-
length)
Spot size
Power supply voltage
Current consumption
Red LED (670 nm)
1-mm dia. max. (at 38-mm sensing distance)
10 to 30 VDC including 10% (p-p) ripple
55 mA max.
Control output
Load power supply voltage: 30 VDC max., Load current: 100 mA max.
(Residual voltage: NPN output: 1.2 V max., PNP output: 2.0 V max.)
Open collector output (NPN/PNP, depends on the model)
Light ON/Dark ON selectable
Power supply reverse polarity protection, Load short-circuit protection, Mutual interference prevention
Operate or reset: 1.5 ms max.
Teaching (in NORMAL or ZONE mode)
Manual fine threshold adjustment (NORMAL mode: 13 levels, ZONE mode: 5 levels)
Operation indicator (orange), Distance indicator (green: 8 levels), Threshold indicator (red, NORMAL mode:
13 levels, ZONE mode: 5 levels)
Incandescent lamp: 3,000 lx max., Sunlight: 10,000 lx max.
Operating:
−25°C
to 55°C, Storage:
−30°C
to 70°C (with no icing or condensation)
Operating: 35% to 85%, Storage: 35% to 95% (with no condensation)
20 MΩ min. at 500 VDC
1,000 VAC, 50/60Hz for 1 min
10 to 55 Hz, 1.5-mm double amplitude for 2 hours each in X, Y, and Z directions
500m/s
2
3 times each in X, Y, and Z directions
IEC IP67 (with protective cover)
Pre-wired
(Standard length: 2 m)
Approx. 64 g
Methacrylic resin
Stainless steel (SUS304)
Mounting Bracket (with screws), Instruction sheet
Connector (M8)
Approx. 21 g
Pre-wired
(Standard length: 2 m)
Approx. 64 g
Connector (M8)
Approx. 21 g
Operate or reset: 2.5 ms max.
Protection circuit
Response time
Distance setting
Fine distance adjust-
ment
Indications
Ambient illumination
(Receiver side)
Ambient temperature
Ambient humidity
Insulation resistance
Dielectric strength
Vibration resistance
(destruction)
Shock resistance
(destruction)
Degree of protection
Connection method
Weight (packed state)
Case
Mate-
rial
Cover
Mounting
Bracket
PBT (polybutylene terephthalate)
Accessories
4
E3G-L1/L3
Engineering Data (Typical)
Operating Range
E3G-L1@ (in NORMAL Mode)
Operating range Y (mm)
Setting distance: 30 mm, 40 mm, 50 mm
Sensing object: White paper, 50
×
50 mm
Spot Diameter vs. Sensing Distance
E3G-L1@ (in ZONE Mode)
Operating range Y (mm)
Setting distance: 30 mm
40 mm
50 mm
E3G-L1@
Spot diameter (mm)
50 mm
1.5
3
2.5
40 mm
30 mm
2
10
20
30 mm
30
40
50
60
Y
25
30
35
40
45
50
55
1
X
0.5
40 mm
0
30
35
40
45
50
Distance (mm)
50 mm
Distance X (mm)
Distance X (mm)
E3G-L3@ (in NORMAL Mode)
Operating range Y (mm)
Setting distance: 50 mm,100 mm, 200 mm
Sensing object: White paper, 50 × 50 mm
E3G-L3@ (in ZONE Mode)
Operating position Y (mm)
Setting distance: 50 mm,100 mm, 200 mm
E3G-L3@
Spot diameter (mm)
200
250
6
14
12
100 mm
Y
X
50
100
150
200
10
50 mm
8
50
100
150
50 mm
200 mm
4
200 mm
2
100 mm
0
40
60
80
100
120
140
160
180
200
Distance (mm)
Distance X (mm)
Distance X (mm)
Angle Characteristics
E3G-L1@ (Vertical)
Sensing distance variation (%)
5
4
3
2
1
0
−1
−2
−3
−4
−5
−40
Sensing object Center line
−30
−20
−10
0
10
20
30
40
Inclination angle (θ)
Vertical
Inclination
angle
Sensing Object Size vs. Setting Distance
E3G-L1@ (Horizontal)
Sensing distance variation (%)
5
4
3
2
1
0
−1
−2
−3
−4
−5
−40
−30
−20
Vertical
Inclination
angle
E3G-L1@
Min. sensing object dia. (mm)
0.5
Sensing object: Stainless steel rod
Setting distance: white paper, 50 mm
0.4
Sensing object: White paper, 50 × 50 mm
Sensing distance: 30 mm
Sensing object: White paper, 50 × 50 mm
Sensing distance: 30 mm
0.3
0.2
+θ
−θ
+θ
−θ
Sensing object
Center line
−10
0
10
20
30
40
Inclination angle (θ)
0.1
0
30
35
40
45
50
Distance (mm)
E3G-L1@ (Vertical)
Sensing distance variation (%)
Sensing object: White paper, 50 × 50 mm
Sensing distance: 50 mm
E3G-L1@ (Horizontal)
Sensing distance variation (%)
5
4
3
2
1
0
−1
(Vertical)
Inclination
angle
E3G-L3@
Min. sensing object dia. (mm)
2.5
Sensing object: Stainless steel rod
Setting distance: white paper, 200 mm
2
Sensing object: White paper, 50 × 50 mm
Sensing distance: 50 mm
1.5
1
(Horizontal)
Inclination
angle
−2
−3
−4
+θ
−θ
Sensing object Center line
−30
−20
−10
0
10
20
30
40
Inclination angle (θ)
0.5
Sensing object
0
Center line
20
30
40
Inclination angle (θ)
10
−5
−40
0
40
60
80
100
120
140
160
180
200
Distance (mm)
5
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