6
Standard Photoelectric Sensors
Excess Gain Ratio vs. Distance (typical)
Through-beam Models (axial)
E
3
F2-7
@
4-
@
Retro-reflective Models (axial)
E
3
F2-R4
@
4
@
-
@
Retro-reflective Models (radial)
E
3
F2-R2R
@
41-
@
(polarizing)
and reflectors
Diffuse-reflective Models (axial)
E
3
F2-DS10
@
4-
@
(wide-beam type)
Diffuse-eflective Models (axial)
E
3
F2-DS
3
0
@
4-
@
Diffuse-reflective Models (radial)
E
3
F2-DS
3
0
@
41-
@
Diffuse-reflective Models (axial)
E
3
F2-D1
@
4-
@
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:
E
39
-RS
3
E
39
-R1S
E
39
-R40
E
39
-R7
E
39
-R8
1
2
3
4
5
0
100
10
1
0.1
Excess gain
Distance X (m)
reflector E
3
9-R1
reflector E
3
9-R7
reflector E
3
9-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)
200
400
600
800
1000
0
100
10
1
0.1
Excess gain
Distance X (mm)
Grey paper
(18% reflectivity)
White paper
(90% reflectivity)
Sensitivity adjusted to maximum
Sensing object:
100 x 100 mm
100
200
3
00
400
500
0
100
10
1
0.1
Excess gain
Distance X (mm)
Grey paper
(18% reflectivity)
Sensing object:
100 x 100 mm
White paper
(90% reflectivity)
Sensitivity adjusted to
3
90 mm
0,1
1
10
100
Distance(m)
Excess gain
0 0.5 1 1.5 2
