Endress+Hauser Prosonic S FMU90 - Pump M;Control N; Backlash Interval; Backlash Time

The "relays/controls" menu
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L00-FMU90xxx-19-00-00-yy-056
A: switch-on point; B: switch-off point; C: pump on; D: pump off; E: inaccuracy ("crust reduction")
5.2.7 "pump M/control N" (M = 1 - 6, N = 1 or 2)
(Part 2: Switching behavior for limit control)
"backlash interval" and "backlash time"
Use these parameters if, you want to empty a vessel beyond the switch-off point in regular intervals.
The "backlash interval" determines after which time this extended pumping will occur.
The "backlash time" determines how long this additional pumping lasts.
L
t
t
A
B
C
D
E
E
⇒
pumpM/controlN RN304
backl. interval:
backlash time:
error handling: