Technical data

Manual
Double Sheet Detector R1000 series E20
B0046991 / Rev. 1.6
Technical data
ROLAND ELECTRONIC GmbH · Otto-Maurer-Str. 17 · DE 75210 Keltern · Phone [phone] · Fax [phone]
21
Double sheet thresholds above 120% reduce the performance of the system with regard to air gaps
between the sheets and increase the systems reaction time according to the diagram.
Air gaps influence the performance negatively because air has - in contrast to steel - a high
resistance to the magnetic flux. Therefore, air gaps reduce the performance of the system
considerably (see chapter “3.1 Measuring principle and conditions influencing measurement
accuray“).
For reliable double sheet monitoring there should be no air gap between sheet and sensor and also
between the sheets. The most reliable double sheet recognition results, if no air gaps exists. These
aspects should be specifically observed when mounting the sensors. The influence of air gaps are
described in the following diagrams.
Attention The performance data of both diagrams cannot be combined.
Max. air gap between sensor and first sheet (1st air gap)
0,4
0,6
0,8
1,0
1,2
1,4
1,6
1,8
2,0
2,2
2,4
2,6
2,8
3,0
Sheet thickness
[mm]
1
s
t
a
i
r
g
a
p
[
m
m
]
P75VGS
P42AGS
P30GS
1.
1 2 3 4 5 6 70,5 1,5 2,5 3,5 4,5 5,5 6,5
Max. air gap between first and second sheet (2nd air gap)
2
3
4
5
6
7
8
9
10
11
P75VGS
P42AGS
P30GS
1 2 3 4 5 6 70,5 1,5 2,5 3,5 4,5 5,5 6,5
2
n
d
a
i
r
g
a
p
[
m
m
]
Sheet thickness
[mm]
2.
The data apply for a set upper limit of 120%.
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