iQntrol DOS-MODBUS
Original manual in German Version 1.0.2 2022.10.06
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Dosing impediments
There are situations where no disinfection dosing is possible or where the dosing cannot be properly completed. This may be the
case in the event of an empty disinfection container, a disruption in the measuring cell flow or a voltage failure, e.g. The controller
stores the already dosed amount and attempts to add the remaining amount at the next possible point in time on the same day.
If the controller is unable to dose the remaining amount by the end of the day at 12 AM, the remaining amount will be discarded. The
faulty dosing is signalled by a symbol in the IN list. This disruption can be acknowledged manually, or it will be deleted following the
next regular dosing.
Select the proper dosing times
Please also consider the filter running times when setting the staring times for the O
2
dosing. The filter pump’s running time must
be selected in a way that ensures the proper distribution of the disinfectant during the filter running time and upon completion of
the dosing.
Notice
Please supply the device with permanent voltage; this is the only way to ensure that the mean value for temperature-
dependent additional dosing can be properly determined.
The pH start routine blocks or stops the O
2
dosing. The controller stores the already dosed daily amount. I.e., if the dosing volume is
increased on a day during which a disinfectant dosing has already taken place, “only” the remaining amount will be added.