EWS UFS8000, Operating Manual, Page: 55 / 130

UFS8000 UF Unit 48
The name of the sub-process can be set. This is because the order of the sub-processes for this
phase is not always identical for every installation.
For each step you can enter which inputs of limits are monitored, which outputs have to be activated
and the time duration of the phase (0-9999 seconds / minutes).
If a time of 0 is entered the corresponding phase will be omitted.
7.6. Backwash 2
The "Backwash 2" phase is used for a 2
nd
backwash cycle. With this you can make a difference for a
“bottom” backwash and a “top” backwash. After a “Filtration” the both backwashes will be started
alternated. Schematically this will looks as follows :
The backwash may comprise a max. of 6 stages each with a time duration of 0-9999 seconds
/minutes.
The name of the sub-process can be set. This is because the order of the sub-processes for this
phase is not always identical for every installation.
If no 2
nd
backwash is desired, the phase may be omitted by turning the phase switch off (no check
mark in “Activate”). If the phase is activated the various stages can be programmed.
For each step you can enter which inputs of limits are monitored, which outputs have to be activated
and the time duration of the phase (0-9999 seconds / minutes).
If a time of 0 is entered the corresponding phase will be omitted.