Configuration menu
25
© Lutz-Jesco GmbH 2020
Subject to technical changes.
200922
BA-62010-01-V01
Chlorine Dioxide System
EASYZON Dd
Operating Instructions
Direct run mode
The direct run mode is an operational mode when the production is pro-
portionally modified through an external control signal. The signal is pro-
vided by an analogic regulator (0/4 – 20 mA) or by an impulsive one
(0 – 7200 p/h max.). In both cases the signal will modulate in a strictly
proportional way the dioxide production with no interfereces by the elect-
ronic control unit.
The operator shall set the parameters related to this kind of operation, in
detail:
n
Inlet prop. - AI7
: setting range 4 – 20 mA or pulse
→
It represents
the type of incoming external control signal.
n
I. Dig. Cp/min
: 100
→
It represents the max. value of the incoming
external control signal with a pulse-emitting input.
n
Max. production rate (%)
: 100
→
This parameter allows to reduce
the max. production capacity of the machine so to limit its potential
while operating in automatic mode.
Perform the following working steps:
1.
To select this operation mode, press
Enter
.
2.
Press
up
and confirm the choice with
Enter
.
3.
Press
up
or
down
to vizualize the following pages.
4.
Press
up
or
down
to scroll the various parameters.
5.
Press
Enter
to Enter the
Edit
mode.
6.
Press
up
or
down
to edit the field or the description
7.
Press
Enter
again to confirm.
ü
Direct run mode set.
Flow run rate
In the flow run rate mode the production control is regulated by the flow
rate measure. The flow rate referred to the untreated water. The signal is
provided by an analogic regulator (0/4 – 20 mA) or by an impulsive one. In
both cases the operator has to set the full scale value corresponding to
20 mA or the pulse emission costant (1 pulse per X liters).
The operator shall set the parameters related to this kind of operation, in
detail:
n
Flow rate input - AI6
: setting range 4 – 20 mA or pulse
→
It repre-
sents the type of signal coming from the flow meter.
n
Flow rate F.S. (mc/h)
: 100
→
It represents the maximum flow rate
value corresponding to 20 mA, or the maximum value presumed
when a pulse input is foreseen.
n
Pulse frequency (l/imp)
: 10
→
It represents the pulse emission con-
stant when a pulse-emitting water counter input is foreseen.
n
Max. production rate (%)
: 100
→
This parameter allows to reduce
the max. production capacity of the machine so to limit its potential
while operating in automatic mode.
Perform the following working steps:
1.
To select this operation mode, press
Enter
.
2.
Press
up
and confirm the choice with
Enter
.
3.
Press
up
or
down
to vizualize the following pages.
4.
Press
up
or
down
to scroll the various parameters.
5.
Press
Enter
to Enter the
Edit
mode.
6.
Press
up
or
down
to edit the field or the description
7.
Press
Enter
again to confirm.
ü
Flow run rate set.
Automatic from flow rate + analysis
(not for compact models)
In the
Flow + Analysis Run Mode
the production control is regulated
by the flow rate measure of the untreated water and by the residual dioxi-
de chlorine analysis value. The signal in both cases is provided by an ana-
logic regulator (0/4 – 20 mA) or by an impulsive one. The main parameter
observed is the flow rate measure, whereas, the residual dioxide measu-
re contribute to production regulation in a partial way and, in any case,
proportional to the flow rate. Its effect (weight) in the regulation can be
set in a range from 5 to 50 %. The applied regulation is PID type.
The following parameters can be set:
i
All PID parameters shall be Entered with the utmost care by
duly qualified personnel only.
n
Flow rate input AI6
: setting range 4 – 20 mA or pulse
→
It repre-
sents the type of signal coming from the flow meter.
n
Max. Measured flow (mc/h)
: 100
→
It represents the maximum
flow rate value corresponding to 20 mA, or the maximum value presu-
med when a pulse input is foreseen.
n
Pulse frequency (l/imp)
: 10
→
It represents the pulse emission con-
stant when a pulse-emitting water counter input is foreseen.
n
Analysis probe
: external
→
This parameter sets, if the test sensor is
internal, therefore directly connected to the electronic control unit, or
external, therefore connected to a device connected to the electronic
control unit through an analog signal retransmitting the sensor mea-
sure.
n
F. Scale. An. probe (g/l)
: 001
→
If an external sensor is foreseen, this
parameter allows to Enter the full scale value of the sensor or of the
value corresponding to 20 mA of the incoming external signal.
n
ClO
2
Influence (%)
: 010
→
In the operation mode
Automatic from
Flow Rate + Test
, the setting destined to the test component is
executed according to a preset percentage weight of “Incidence” re-
ferred to the total setting. The residual percentage value of the setting
is reserved to the flow rate. Both components are independent from
each other (summative setting).
n
Proportional band (%)
: 010
→
This parameter sets the setting ran-
ge, that is the value (compared to the full scale value of the sensor
used) within which the PID setting is performed.
n
Integrative time (min)
: 0000
→
This parameter sets a time value in-
side the PID setting integrating the delay time (time elapsing between
the dosing operation and the relevant sensor reading change) inclu-
ded in any dynamic system.
n
Derivative time (min)
: 0000
→
This parameter sets a time value in-
side the PID setting creating an anticipation of further events (for ex. a
tub between the dosing operation and the test).
n
Max. production rate (%)
: 100
→
This parameter allows to reduce
the max. production capacity of the machine so to limit its potential
while operating in automatic mode.
n
Sample flow check
: no
→
This parameter enables to control the
sample flow touching the reading sensor. This can only occur when a
flow sensor is mounted on the probe holder.
