4
Standard Photoelectric Sensors
Engineering Data (Typical)
Operating Range (typical)
Excess Gain Ratio vs. Distance (typical)
Through-beam Models
E3F2-7
#
4-
#
Retro-reflective Models
E3F2-R4
#
4
#
-
#
Diffuse-reflective Models
E3F2-DS10
#
4-
#
(wide-beam type)
Diffuse-reflective Models
E3F2-DS30
#
4-
#
Through-beam Models
E3F2-7
#
4-
#
Retro-reflective Models
E3F2-R4
#
4
#
-
#
Diffuse-reflective Models
E3F2-DS10
#
4-
#
(wide beam type)
0
0
1
2
3
4
5
6
7
8
9
Distance X (m)
- 250
- 200
- 150
- 100
- 50
50
100
150
200
250
Distance Y
(mm)
X
Y
Reflector
Typical sensing distance
E39-RS3
E39-R1S
E39-R40
E39-R7
E39-R8
20
40
60
80
100
120
0
0
5
10
15
–5
–10
–15
Distance Y
(mm)
Distance X (mm)
140
white paper
(50 x 50 mm)
X
Y
Object
100
200
300
400
500
600
0
0
10
20
30
40
–10
–20
–30
–40
Distance Y
(mm)
Distance X (mm)
Sensing distance adjustable
between 0 and 550 mm
Sensitivity adjusted to maximum
Sensitivity adjusted to 400 mm
white paper
(100 x 100 mm)
X
Y
Object
2
4
6
8
10
12
0
100
10
1
0.1
Excess gain
Distance X (m)
0.1
1
10
100
0
2
4
6
8
10
Distance X (m)
Excess Gain
Reflectors:
E39-RS3
E39-R1S
E39-R40
E39-R7
E39-R8
20
40
60
80
100
120
0
100
10
1
0.1
Excess gain
Distance X (mm)
140
Grey paper
(18% reflectivity)
Sensing object:
50 x 50 mm
White paper
(90% reflectivity)
