Configuration menu
24
© Lutz-Jesco GmbH 2020
BA-62010-01-V01
Chlorine Dioxide System
EASYZON Dd
Operating Instructions
As described for the manual calibration, should the volumes per pulse
calculated deviate from each other by a percentage value higher than the
one set by the manufacturer, the previous values remain unchanged.
è
Press
BACK
to go back to the calibration page.
9.3.3 Calibration of the dioxide sensor
(not for compact models)
The dioxide sensor shall be calibrated in order to linearize it according to
actual measurement values. The calibration operation is performed by
Entering at least two values (points) passing through the straight line re-
presenting the measured value. The first point corresponds to
zero
(test
sample without chlorine dioxide), while the second point
DPD
(gain) cor-
responds to the chlorine dioxide detected in the water by means of a por-
table photometer (20 s) using DPD reagents. Other indirect measurement
methods, for ex. chlorine measurements, can result in severe system er-
rors. Given its high stability, the zero point is generally calibrated only
once, therefore only the second point is usually processed.
Perform the following working steps:
1.
Press key
up
/
down
to scroll the various options; to enter the option
required press key
Enter
.
2.
Press
Enter
.
3.
Press
BACK
to go back to the calibration page; move with
up
/
down
onto
Second point DPD
, then press
Enter
to Enter the
page.
To calibrate the second point (gain), the sample of water to be analyzed
passing in the probe-holder and touching the sensor shall contain a pro-
per concentration of the chemical to be measured (chlorine dioxide in this
case, but it can also refer to chlorite or other chemicals). Proper concent-
ration means a value not lower than 0.1 mg/l, unless otherwise indicated
in the sensor instruction manual.
If only one point is calibrated (zero or DPD), the other point remains un-
changed.
4.
Press
Enter
.
5.
Press key
BACK
once or many times to repeat the calibration, go to
page
Calibrations
and select another sensor or go back to the
home page.
ü
Calibration of the dioxide sensor done.
9.3.4 Calibration of the chlorite sensor
(not for compact models)
The chlorite sensor shall be calibrated in order to linearize it according to
actual measurement values. The calibration operation is performed by
Entering at least two values (points) passing through the straight line re-
presenting the measured value. The first point corresponds to
zero
(test
sample without chlorite), while the second point
DPD
(gain) corresponds
to the chlorite detected in the water by means of a portable photometer
(20 s) using DPD reagents. Given its high stability, the zero point is gene-
rally calibrated only once, therefore only the second point is usually pro-
cessed.
è
Repeat the operations described under section 9.3.3 „Calibration of
the dioxide sensor“ on page 24.
9.4 Menu
Access to this function is only granted when the machine is OFF. No result
is achieved when attempting it while the machine is ON.
The following options are availabe:
n
Operator
n
Service
n
Manufacturer
è
Press
up
/
down
to scroll the various options; to enter the option
required press
Enter
.
9.4.1 Operator
The following options are available:
n
Run Mode
n
General Parameters
n
Probes Parameters
è
Press
up
/
down
to scroll the various options; to enter the option
required press
Enter
.
9.4.1.1 Run Mode
The following options are available:
n
Manual
n
Direct Run Mode
n
Flow Run Mode
n
Flow + Analysis Run Mode
n
Analysis Run Mode
n
Batch
è
Press key
up
or
down
to scroll the various options; to Enter the
option required press
Enter
.
Manual mode
This mode of function permits to control the production (expressed in g/h)
of the machine setting a fixed parameter chosen by the operator. This
fixed parameter has to lay in an interval between 0 and the maximum
production value of the producer itself.
Perform the following working steps:
1.
To select the manual mode press
Enter
.
2.
Rress
up
and confirm the choice with
Enter
. The
% Production
reduction
parameter allows to set a lower maximum value of pro-
duction compared to the maximum one of the machine.
3.
Press
up
or
down
to scroll the various parameters.
4.
Press
Enter
to Enter the
Edit
mode.
5.
Press
up
or
down
to edit the field or the description
6.
Press
Enter
again to confirm.
7.
Coming back to the main screen pushing the
HOME
key, it is possi-
ble to set the production value pushing the
ADJUST
key.
ü
Manual mode set.
