Siemens FDL241-9 - Checking the Signal Level and Distance

4.6 Checking the signal level and distance
w The detector line is switched on.
1.
Loosen the two safety screws (3).
2.
Make sure that the vertical scale(7) and the horizontal scale(1) are centered
(factory setting). Otherwise the scales must be re-adjusted with the knurled
screws:
– the vertical scale(7) with the knurled screw(8)
– the horizontal scale (1) with the knurled screw (2).
3.
Set the 'Adjust' menu with the button(4) on the adjustment device.
4.
Read the indicators for the signal level and the distance from the adjustment
device:
– If the signal level is over 100 and the distance indication matches the
detection distance, continue fine-tuning the detector optics.
– If the signal level is below 100 and/or the distance indicator does not match
the detection distance, continue with preliminary setting of the detector
optics.
Possible reasons for the signal level and distance indication deviating:
● The detector and the reflector are not positioned on the same horizontal or
vertical axis.
● The detector is not mounted on an even surface.
3
4
5
6
7
8
9
3
2
1
Figure 22: Checking the signal level and distance
1 Horizontal scale 6 Bushes
2 Knurled screw for horizontal
adjustment
7 Vertical scale
3 Safety screws 8 Knurled screw for vertical
adjustment
4 Button 9 Opening for cable entry
5 Adjustment device
Example: Signal level and distance indication in the 'Adjust' menu:
Commissioning
Checking the signal level and distance
4
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