Evoqua DEPOLOX - Notes for Settings for CEDOX Control; Notes for Startup;Calibration of CEDOX Control

Description DEPOLOX
®
Pool
24 WT.050.570.000.DE.IM.0714
The example diagram below shows how the CEDOX mode works:
Notes for settings for CEDOX control:
The parameter "mV delay time” (Menü 1.3.1) defines the reaction times
of the redox electrode and has a delaying effect on the setpoint optimi-
sation of the chlorine control.
The Cl2 setpoints determined by the CEDOX mode must always be
between the limit values Cl2 min setpoint" and "Cl2 max setpoint". If
these setpoint limits are reached, the mV measured value may vary
from the mV setpoint.
Notes for startup/calibration of CEDOX control
After calibrating the redox electrode, the setpoint optimisation is out of
service for 2 hours, as the redox electrode does not supply reliably si-
gnals during this period. During this time, the DEPOLOX
®
Pool uses a
fixed temporary Cl2 setpoint. This temporary Cl2 setpoint is the last
current Cl2 before the calibration (can be altered manually, Menu 2.1.1
or 2.1.3).
When the chlorine measuring is calibrated, the DEPOLOX
®
Pool auto-
matically calculates a new Cl2 setpoint if deviations are detected.
m V -
s e t p o i n t
m V s e t p o i n t + X s h
m V s e t p o i n t - X s h
m V d e l a y t i m e
b e l o w
m V s e t p o i n t
C l 2 s e t p o i n t i n c r e a s e s
w h e n t h e m e a s u r e d v a l u e i s b e l o w
m V s e t p o i n t
T h e n e w i n c r e a s e d C l 2 s e t p o i n t
i s r e a c h e d
m V d e l a y t i m e
T h e n e w r e d u c e d C l 2 s e t p o i n t
i s r e a c h e d
c o n t a m i n a t i o n
d e c r e a s e s
T i m e t
m V
C l 2
m V n e u t r a l b a n d
a b o v e
m V s e t p o i n t
C l 2 s e t p o i n t d e c r e a s e s
w h e n t h e m e a s u r e d v a l u e i s a b o v e
m V s e t p o i n t
c o n t a m i n a t i o n
i n c r e a s e s