9
35
mV (redox potential) settings
Parameter
Purpose / effect
Setpoint mV
The desired or determined mV value of the swimming pool water.
Initially, an approximation can be achieved by working with the preset default value. However,
to precisely maintain the desired chlorine content in the swimming pool water, the value must be
determined for that particular water.
Lower Alarm mV
The lower alarm threshold of the mV value. As soon as the mV value falls below the entered level,
an alarm is output.
Upper Alarm mV
The upper alarm threshold of the mV value. As soon as the mV value rises above the entered level,
an alarm is output.
Max. Dos. Time mV
The maximum duration for which Chloriliquide is dosed. If the set time is exceeded, an alarm is output
and dosing of Chloriliquide is stopped.
p-Range mV
The p-range setting. The p-range defines the response speed of the controller.
As a rule:
The smaller the percentage, the more product will be dosed.
Advantage: the setpoint can be reached quickly.
Disadvantage: the setpoint may not only be reached but may actually be exceeded.
The larger the percentage, the less product will be dosed.
Advantage: the setpoint is reached and is not exceeded.
Disadvantage: the setpoint is be reached more slowly.
Min. On-time
Minimum time for which the dosing pump is switched on. If the current deviation of the mV value
requires a dosing time that is less than the set on time, dosing still takes place for the set on time.
Basic Dos. mV
Configuration of the basic dosing of the mV control. The mV controller always adds the basic dosing to
the calculated dosing rate. The basic dosing compensates the natural attrition of dosed care products
in the swimming pool water.
Dead Zone mV
The Dead Zone for the redox controller is set here. As long as the control deviation between setpoint
and actual value lies within the Dead Zone, control remains inactive, i.e. there is no dosing. The
control only starts dosing again when the control deviation moves outside the Dead Zone. When the
reading moves (back) into the Dead Zone, the control remains active until the actual value reaches the
setpoint.
Dos. period mV
The Dosing Period (or dosing cycle) for mV control is programmed here. Since the control uses pulse
width modulation, the dosing period (i.e. the sum of the switched-on and switched-off time of the
dosing relay) remains constant. The actual dosing rate is obtained from the variation in the ratio
between the switched-on time and the switched-off time.
Dos. Direction mV
D+
A dosing device for chlorine, bromine or Bayrosoft
®
is connected to increase the redox (mV)
value. The redox control operates in one direction only to increase the redox level.
This is the normal way of operation.
D-
A dosing to reduce the redox (mV) value is connected.
This setting my only be used in special situations to reduce the chlorine or bromine level in
the pool.