Endress+Hauser Prosonic S FMU90 - Crust Reduction Subfunction; Switch on Border; Hook up Interval

The "relays/controls" menu
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"crust reduction" subfunction
Specifies a range of inaccuracy (percentage of the measuring range) for the switching points. If this
value is larger then "0", the switching points are not exactly constant. Instead, they vary within the
specified range of inaccuracy.
This helps to avoid crust formation, which often occurs at fixed switching points.
L00-FMU90xxx-19-00-00-yy-056
A: switch-on point; B: switch-off point; C: pump onD: pump off; E: inaccuracy ("crust reduction")
"switch on border"
Specifies the switch-on border for the rate control (for details see section "limit control and rate
control").
"hook up interval"
Specifies the time interval between the switching-on of the different pumps (for details see section
"limit control and rate control").
"alternate"
Determines if an alternating pump control is to be performed.
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t
t
A
B
C
D
E
E