ProTec Polymer Processing FG 20 Series, Operating Manual, Page: 70 / 76

ProTec Polymer Processing GmbH Foerdergeraet_FG201-FG206_BA_1v0_2018_en
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Setting a type (A) fill level indicator:
Figure 1: View of the safety flap Figure 2: Safety flap open
Figure 3: Turning the screwdriver
Half-turn to the right (clockwise)

Sensitivity of the fill level indicator is increased:
Half-turn to the left (counter-clockwise):

Sensitivity of the fill level indicator is reduced: