Active Oxygen (Bayrosoft ® ) - Bayrol PoolManager Chlorine User Manual

12
HAZARD!
Overdosing if pH value is wrong
If disinfection is enabled before the pH value is stable
in the ideal range of 7.0 to 7.4, then it may lead to
heavy overdosing of chlorine or bromine.
Potential consequence: Death or the gravest
degree of injury, heavy material damage.
 Do not start disinfection with chlorine or bromine
until the pH value is stable in the ideal range
between 7.0 and 7.4.
11.2.4 Active oxygen (Bayrosoft
INFO
This section applies for the model PoolManager
only.
For disinfection with active oxygen, a main dosage is performed
automatically once a week in order to initially raise the pool's oxygen
content to a high level, thereby yielding a strong disinfection effect.
Then additional intermediate dosages are performed throughout the
course of a week as needed in order to maintain the oxygen level
continuously over the required minimum value that ensures safe and
reliable disinfection.
The volumes for the main dosage and the intermediate dosages are
automatically adjusted to the average pool temperature in order to
compensate for heavier product attrition at higher temperatures. This
function is called temperature compensation.
12 Measurement, control, dosing
(pH value, redox value, chlorine / bromine)
INFO
The information in this section on measuring and
controlling the redox value applies only for the models
PoolManager ® Cl and PoolManager
The information onmeasuring and controlling the pH
value applies for all PoolManager
PoolManager ® O2.
IMPORTANT NOTICE!
Need for calibration
Correct calibration of pH measurement and, if
applicable, redox measurement is an absolute
requirement for exact and reliable measurement and
control.
Please refer to the information in the section
Calibration.
12.1 Function
Measurement and control for the pH value, free chlorine / bromine,
and for the redox value are set-up as identically as possible.
PoolManager ® continuously measures the pH value and the current
redox value in the pool and compares the current measured values
with the desired levels, which are configured as setpoints.
PoolManager ® PRO continuously measures the pH value and the
concentration of free chlorine / bromine in the pool and compares the
current measured values with the desired levels, which are configured
as setpoints.
If there is a deviation between the current measured value and the
setpoint, a so-called control deviation, then PoolManager
the corresponding dosing pump (or other dosing equipment) in order
to adjust quickly and precisely.
28
)
®
® O2
® Br.
models, i.e. also for
®
® activates
12.2 Dosing rate
The controller continuously calculates the optimal dosing rate in the
current situation. The further the current measured value is from the
setpoint, the higher the calculated dosing rate is.
Dosing rate is indicated as a percentage value [%]. A dosing rate of
100% means that the dosing pump is running continuously. The
absolute dosing rate in l/h depends on the pump type used and / or
the dosing hose used.
For lower dosing rates, the controller periodically turns the dosing
pump on and off within a predefined dosing cycle (e.g. 60 s). For
example, a dosing rate of 10% means that the dosing pump runs 10 %
of the available time within a dosing cycle, and stands still during 90 %
of the time.
Example:

The dosing cycle is set to 60 s.

The current dosing rate is 10 %.
 The pumps running time will then be 10 % of 60s, i.e. 6s.
 The pumps off time will then be 90 % of 60s, i.e. 54s.
The following figure shows cyclic turning on and off of dosing pumps
for various dosing rates.
1 Dosing pump running (on)
2 Dosing pump not running (off)
3 Dosing cycle (for example, 60s)
4 Dosing rate 10 % / 50 % / 90 % / 100 %
5 Time axis