EWS UFS8000, Operating Manual, Page: 56 / 130

UFS8000 UF Unit 49
7.7. CEB 1
The “CEB 1” phase is used to clean the membrane chemically at adjustable intervals.
The backwash may comprise a max. of 11 stages each with a time duration of 0-9999 seconds
/minutes.
If no 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.
If the phase is activated the various stages can be programmed and you may indicate if the CEB
should be started depending on the number of preformed backwashes and/or depending on a interval
time (1-9999 minutes/hours).
Should the rinsing be initiated based on the number of executed backwashes, then this can be
indicated schematically as follows:
only “Backwash 1” activated.
“Backwash 1” and "Backwash 2” activated.
If a “CEB 2” rinse is started based on the number of “CEB 1” rinses (see § 7.8 “CEB 2” on page 50), it
can be represented as follows:
In this case, a “CEB 1” rinse is skipped and replaced by a “CEB 2” rinse.
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.
In the information window , the remaining number of backwashes and/or remaining interval time
will be shown before a CEB will be initiated (see § 10.6 “CEB 1” on page 61)..