iQntrol DOS-MODBUS
Original manual in German Version 1.0.2 2022.10.06
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8.2.1.1
Main menu
Settings
pH
Alarm low
lower alarm value
Set point
the device attempts to reach this value
Control range
The dosing pumps work proportionally, i.e., the higher the
difference between set point and actual value, the longer the dosing time (max.
50 seconds).
The smaller the selected control range, the faster the measuring value will react,
which can easily lead to overdosing.
Alarm high
upper alarm value
Time control
if the control range is not reached within three times the set time,
the dosing is blocked.
Important: This disruption must be acknowledged manually!
With 2-point (on/off) control, the P range becomes hysteresis. If the hysteresis is
not reached, the output is activated until the set point is reached. Control
direction
pH decrease or pH increase control direction selectable The selected
control direction is displayed in the header.
Tip
To protect against overdosing with disinfectants that contain chlorine, the dosing is only released once the pH value
has entered the control range (pH priority dosing). For this reason, the selected control range must not be too high.
8.2.1.2
Main menu
Settings
Proportional disinfection, 2-point (chlorine, bromine)
The IQntrol DOS MODBUS control is suitable for the dosing of different disinfectants. The disinfection outlet must be adjusted to the
disinfectant used. According to the selected variant, the menu for setting the associated parameters changes.
Alarm low
lower alarm value
Control range
The dosing pumps work proportionally, i.e., the higher the
difference between set point and actual value, the longer the dosing time (max.
50 seconds).
The smaller the selected control range, the faster the measuring value will react,
which can easily lead to overdosing.
Set point
the device attempts to reach this value
Alarm high
upper alarm value
Time control
if the control range is not reached within three times the set time,
the dosing is blocked.
Important: This disruption must be acknowledged manually!
In the 2-point control (on/off), the control range becomes hysteresis. If the value
stays below the control range, the output is activated until the set point has been
reached.
Tip
To keep the disinfectant concentration at an even level, the factory-set control range must be reduced when using
the 2-point function. In this case, a value between 10 and 20 mV should be selected.
If the selected hysteresis is too high, this can lead to a significant decrease in disinfecting power. If the hysteresis it
too low, this may lead to a larger number of switching cycles.
Please observe the manufacturer's specifications for the connected dosing device.