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8
Standard Photoelectric Sensors
Exess Gain vs. Set Distance
Diffuse-reflective (background suppression)
E3T-SL2
@
(Right to Left)
E3T-FL1
@
(Top to Bottom)
E3T-FL1
@
(Right to Left)
E3T-FL2
@
(Top to Bottom)
E3T-FL2
@
(Right to Left)
Through-beam
E3T-ST1
@
E3T-FT1
@
E3T-ST2
@
40
20
0
20
40
60
80
60
100
60
20
40
0
20
40
60
+
Glass
Stainless steel
Angle of
inclination
Rate of ch
ange (%)
Angle of inclination (
°
)
15
10
5
0
5
10
15
20
20
40
20
10
30
0
20
10
30
40
Rate of change
in sens
ing distance (%
)
Angle of
inclination
White
paper
Center
line
+
Angle of inclination (
°
)
15
10
5
0
5
10
15
20
20
40
20
10
30
0
20
10
30
40
+
Rate of change
in sens
ing distance (%
)
Angle of
inclination
White
paper
Center
line
Angle of inclination (
°
)
15
10
5
0
5
10
15
20
20
40
20
10
30
0
20
10
30
40
+
Rate of change
in sens
ing distance (%
)
Angle of
inclination
White
paper
Center
line
Angle of inclination (
°
)
15
10
5
0
5
10
15
20
20
40
20
10
30
0
20
10
30
40
+
Rate of change
in sens
ing distance (%
)
Angle of
inclination
White
paper
Center
line
Angle of inclination (
°
)
100
50
30
10
5
3
1
0.5
0.3
0.1
4000
3000
2000
1000
0
Excess gain r
atio
Operating
level
Set distance (mm)
100
50
30
10
5
3
1
0.5
0.3
0.1
0 400 800 1200 1600
2000
Excess gain r
atio
Operating
level
Set distance (mm)
14
12
10
8
6
4
2
0
1
1200
9
00
600
300
0
Operating
level
Set distance (mm)
Excess gain r
atio