ORP circulation
The function of redox circulation is to control low‐
ering mode so that it is proportionate with the
measured redox value.
The redox value quickly measures the actual
loading and makes possible direct influence on the
circulation if redox circulation is activated. If redox
circulation is activated, you can enter the start and
end values of the lowering in the bottom field of the
window, e.g. Start 750 mV (the start value to go
from normal mode into lowering mode) and End
800 mV (from this value, the minimum set circula‐
tion rate is reached, the controller does not lower
the rate any further from this level).
If you have deactivated redox control, so-called
step lowering is active.
Here two values must be entered:
–
Circulation lowering in %, e.g. 5%
–
Circulation lowering time in seconds, e.g. 300
seconds
If all DIN values are adhered to, the circulation
capacity reduces every 300 seconds (= 5 minutes)
in 5% steps. Circulation capacity 65%; then after
300 seconds the circulation is lowered to 60%, etc.
For circulation lowering you can also adjust addi‐
tional conditions in the M module under
[Configuration] , switch the DIN contact, define the
time window during which circulation lowering is
permitted and define the DIN values.
Application examples for the F module functions
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