The "relays/controls" menu
88
"
Caution!
After a change of the "unit level" the switch off point has to be checked and adjusted if required.
"switch-on delay"
Specifies the switch-on delay of the respective pump (in seconds).
When the level has risen above the switch-on point, the relay does not switch immediately but only
after the specified switch-on delay. Assign different delays to the individual pumps in order to avoid
simultaneous switching-on of several pumps (which could cause an overload of the power supply
system).
L00-FMU90xxx-19-00-00-yy-055
A: switch-on point; B: switch-off point; C: pump on; D: pump off; E: switch-on delay
"alternate"
Specifies if the pump should be included in the alternating pump control.
Selection
• no (default)
The pump is not included in the alternating pump control. Instead, it switches according to its
own switch points.
• yes
The pump is included in the alternating pump control.
"crust reduction"
Specifies a range of inaccuracy (percentage of the measuring range) for the switching points of the
pump. If this value is larger than "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.
t
t
A
B
C
D
E
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