Installing
4.4 Alignment of SITRANS SL
SITRANS SL
Operating Instructions, 12/2010, A5E01132948-04
57
4.4 Alignment of SITRANS SL
Both sensors of the SITRANS SL have to be aligned such that the laser beam from the
transmitter hits the photo detector in the receiver. To facilitate this both transmitter and
receiver have a spherical surface incorporated in the flanges. The alignment is done by
adjusting the position of the flanges on this surface by means of two adjustment screws and
thus pointing the axis of symmetry - see following figure.
① Center of alignment ② Flange with convex spherical surface
③ Flange with concave spherical surface ④ Spherical surface
Figure 4-13 Alignment sphere
WARNING
Danger of explosion
The SITRANS SL alignment kit is not suitable for use in hazardous areas. Therefore it must
never be used in a hazardous area except with an approval of the plant manager (hot work
permit)!
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