iQntrol DOS-MODBUS
Original manual in German Version 1.0.2 2022.10.06
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8.2.1.3
Main menu
Settings
Disinfection O2 (active oxygen)
If active oxygen is used as a disinfectant, the disinfection outlet is set to time control. This deactivates the measuring of the redox
voltage, and the operating menu is changed accordingly.
ml
enter required dosing volume
Start
select the start time for the dosing
Temperature
select the starting value for additional dosing
Select the week day(s) for a dosing on the right (green is active)
Notice
Please use the disinfectant manufacturer's specifications as a guideline for the required dosing volume. In most cases,
the addition of 0.5 litres per 10 m³ basin volume is recommended. Since January 2017, the permissible proportion of
active ingredients may no longer exceed 12 % in Germany. Accordingly, the dosing volume must be increased
approximately by a factor of three!
Notice
We point out that active oxygen preparations only have a limited disinfection effect. Therefore, particularly in outdoor
pools the water quality may be adversely affected despite a sufficient amount of added disinfectant.
This does not constitute a malfunction of the measuring and control unit!
Select dosing volume and start time
We recommend that you allow the determined overall dosing volume to be dosed over several days (3 days as a rule).
Example:
At a pool volume of 40 m³ times 0.5 l/ 10 m³, the calculated overall dosing volume is 2 litres. The added dosing volume on day 1 is
1,000 ml, on day 4 500 ml, and on day 6 another 500 ml. The week days can be freely selected in this regard. The dosing is done on
the selected day at the selected time.
This should lead to a relatively even disinfectant concentration in the pool.
Temperature-dependent additional dosing
Rising basin temperatures increasingly diminish the disinfectant's efficiency. For this reason, it is recommended to increase the dosing
volume with rising basin temperatures. For this function, temperature measurement must be activated! A start temperature is
specified for controlling the additional dosing. A mean value is determined for the measured temperature. The actual dosing volume
is increased depending on the temperature, in accordance with the following table.
≤ 24°C
25°C
26°C
27°C
28°C
29°C
30°C
31°C
32°C
≥ 33°C
Factor
1.00
1.06
1.10
1.15
1.20
1.28
1.40
1.57
1.80
2.00
If a value other than 24°C is selected as the starting temperature, the factor for the additional dosing shifts by the difference between
the new value and 24°C.
Example: the selected starting temperature is 26°C
≤ 26°C
27°C
28°C
29°C
30°C
31°C
32°C
33°C
34°C
≥ 35°C
Factor
1.00
1.06
1.10
1.15
1.20
1.28
1.40
1.57
1.80
2.00
Manual additional dosing - Manual dosing
There are situations when manual additional dosing may be required. For example, if the disinfection container was not replaced in
due time and the next regular disinfection would only take place several days later. The operator determines by other means that the
disinfection effect could be too low. Or during commissioning, if the regular dosing will not take place until some time far in the future.
In this case, the Service menu provides the possibility to initiate a manual dosing. Upon completion of the manual dosing, the
controller automatically returns to the normal control operation.