Bayrol PoolManager Bromine, User Manual, Page: 32 / 95

11
Measurement, control, dosage
(pH value, redox value, chlorine/bromine)
User Manual PoolManager ® 32
11.4.9 Dosing direction
As already described in the Water maintenance section, the pH control
system can be optionally run in a pH-reducing, pH-elevating, or bi-
directional manner depending on water composition.
The following image shows an example for control system output in
the event of bi-directional dosage.
1 dosing output in %
2 Measured pH value
3 Configured setpoint pH 7.20
4 pH measured value is higher than setpoint
pH minus dosage
5 pH measured value is lower than setpoint
pH plus dosage
6 dosing rate for various proportional ranges
11.4.10 Recommended settings
The following table provides information on the recommended
parameter settings for pH and redox control.
Parameter pH Redox (mV)
Setpoint Ideal range
pH 7.0 ... 7.4 The right redox setpoint has
to be defined individually for
each pool; please refer to the
section
Determining the
redox (mV) setpoint
Lower alarm
threshold ca. setpoint - 0.4 pH ca. setpoint - 50 mV
Upper alarm
threshold ca. se 0.4 pH ca. setpoint - 50 mV
Proportional
range ca. 1.50 pH
for 40 m³ pool and
dosage pumps 1.5 l/h,
see section
Proportional range
ca. 150 mV
for 40 m³ pool and
dosage pumps 1.5 l/h,
see section
Proportional range
Minimum
dosing rate ca. 4.0%
for 40 m³ pool and
dosage pumps 1.5 l/h,
see section
Minimum dosing output
ca. 4.0%
for 40 m³ pool and
dosage pumps 1.5 l/h,
see section
Minimum dosing output
Intelligent
dosing
monitoring The standard setting (60 min) delivers good results in most
applications and should only be changed in exceptional
cases; see section
Intelligent dosage monitoring
Dead zone 0.00 pH for mono-directional
control,
0.10 pH for bi-directional
control 0mV
Dosing cycle The standard setting (60s) delivers good results in most
applications.
For very small pools, e.g. whirlpools, it may be sensible to
reduce to 30s.
Dosing
direction Depending on
water composition:
D- (pH-reducing),
D+ (pH-elevating) or bi-
directional (D+/D-) D+
(Increase in redox value by
dosing chlorine or bromine)
11.4.11 Recommended settings for PoolManager
®
PRO
The following table provides information on the recommended
parameter settings for pH and redox control.
Parameter pH Chlorine (Cl) / Bromine (Br)
Setpoint Ideal range
pH 7.0 ... 7.4 Depending on application
region
(Germany
Lower alarm
threshold ca. setpoint - 0.4 pH ca. setpoint - 0.25mg/l
Upper alarm
threshold ca. se 0.4 pH ca. se 0.25 mg/l
Proportional
range ca. 1.50 pH
for 40 m³ pool and
dosage pumps 1.5 l/h,
see section
Proportional range
ca. = 50 mg/l
for 40 m³ pool and
dosage pumps 1.5 l/h,
see section
Proportional range
Minimum
dosing output ca. 4.0%
for 40 m³ pool and
dosage pumps 1.5 l/h,
see section
Minimum dosing output
ca. 4.0%
for 40 m³ pool and
dosage pumps 1.5 l/h,
see section
Minimum dosing output
Intelligent
dosing
monitoring The standard setting (60 min) delivers good results in most
applications and should only be changed in exceptional
cases; see section
Intelligent dosage monitoring
Dead zone 0.00 pH for mono-direction
control,
0.10 pH for bi-direction
control 0 mg/l
Dosing cycle The standard setting (60s) delivers good results in most
applications.
For very small pools, e.g. whirlpools, it may be sensible to
reduce to 30s.
Dosing
direction Depending on
water composition:
D- (pH-reducing),
D+ (pH-elevating) or bi-
directional (D+/D-) D+
(Increase in chlorine/bromine
concentration)
11.5 Configuration assistant
11.5.1 Basics
Sensible configuration of the proportional range and the minimum
dosing rate is largely dependent upon pool volume and dosage pump
output. In the end, what counts is the ratio between pool volume and
the pumps' dosing output.
The values used as the foundation for the default settings are:
•
Assuming a typical pool volume of 40 m
3
•
dosing output on standard pump 1.5 l/h
•
The assumed ration between pool volume in [m³] and dosing
output in [l/h] is therefore 40 to 1.5, i.e. ca. 27.
For a larger pool volume in relation to dosing output , the control
parameters generally have to be adjusted as follows:
•
Smaller proportional range ( higher dosing output)
•
Higher minimum dosing rate
Accordingly, for a smaller pool volume in relation to dosing output the
control parameters generally have to be adjusted as follows:
•
Larger proportional range ( lower dosing output)
•
Lower minimum dosing rate