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6.2.2
Possible mounting positions
The FPM can be mounted both horizontally and vertically. Due to the danger of contamination we recommend
a vertical mounting with a horizontal beam incidence. The plug connections should point downwards and
unused sockets should be covered with the caps supplied.
6.2.3
Align the device
DANGER
Serious eye or skin injury due to laser radiation
If the device is moved from its aligned position, increased scattered or directed reflection of
the laser beam occurs during measuring operation (laser class 4).
Mount the device so that it cannot be moved by an unintended push or a pull on cables.
The device must be aligned to the laser beam. The laser beam must hit the centre of the inlet aperture.
Please mind and adhere to the specifications and limit values given in chapter „17 Technical Data" on
page 85. The distance between the measurement plane and the entrance plane can be up to 25 mm,
depending on the lens.
The marking on the shutter can be used as an alignment aid. Align the device using the pilot beam with the
shutter closed.
In order to avoid direct reflections into the laser system, the device can be installed offset at an
angle of max. 10 mrad to the incoming beam.
16
FocusParameterMonitor FPM
Revision 06 EN 02/2023
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