KROHNE VA 40-VA 45 EN - Manual (Page 21)

ELECTRICAL CONNECTIONS
4
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VA40 - VA45
www.krohne.com 09/2013 - 4000424402 MA VA40 45 R04 en
4.6.3 Conversion of the function of limit switch TG21
The contact function can be changed over from NO to NC by shifting the position of the slot
sensor 3.
After untightening the screw 6 , the slot sensor 3 can be shifted to the other end position.
If vibrations could cause an unintential switching, use the grub screw 5 to adjust the force of
the frictional connection between adjusting magnet and counter-magnet 4 on the dipping vane
2.
The switching reproducibility is < 3% of the full-scale range and is influenced by the force of the
frictional connection!
1 Magnet
2 Contact vane
3 Slot sensor
4 Counter-magnet
5 Grub screw
6 Detaching screw slot sensor
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