INTRODUCTION
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DSE-22
www.maxcess.eu
MI 1081 1 A
Improper usage
– Operation outside of the technical specifications is not
permitted.
– Operation in areas where there is a danger of explosions is
prohibited.
– The sensor may not be used as a support, handle or step.
– Any use other than the designated use is not permitted.
Operating principle
The DSE-22 sensor works with modulated infrared light in the
wavelength range of 875nm, making the sensor relatively
insensitive to external sources of light.
The light source generates an infrared light. Depending on how
far away the material web is in the sensor’s field of view, a part
of this light strikes the receiver. Based on this the receiver
generates the output signal from which the precise position of
the web edge is determined.
The gap width GW and throat length GL are the characteristic
dimensions of the sensor.
It is possible to operate the sensor with either a supply voltage
of 12V or 24V. The output signal would automatically be
switched over in that case.
– Power supply voltage 12V:
The sensor provides an output signal in the range from 0 to
10mA. Thus the sensor can be connected to all Fife web
guide controllers.
– Power supply voltage 24V:
The sensor provides an output signal in the range from 4 to
20mA. This can be used to establish a wire-break-proof
connection to external devices.
The sensor has a built-in LED display, visible from both sides,
and shows directly on the sensor information about the
operating status like for instance the existence of the supply
voltage, position of the edge of the web inside the field of view
or error messages.
The sensor is delivered with an air sweep connection.
Depending on the type of dirt contamination, this makes it
possible to keep the protectors, which cover transmitter and
receiver, free of large pieces of dirt with a continuous or pulsing
flow of air.
1 Infrared light receiver
2 Infrared light source
3 Sensor field of view
4 Connection cable
5 LED display
6 Center of sensor field of view
7 Air sweep connection
8 Protectors
GW Gap width
GL Throat length
Figure 1.1: DSE-22 sensor
GL
GW
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