Endress+Hauser Prosonic S FMU90 - Page 107

The "relays/controls" menu
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"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.