GRANUDOS Touch, control unit
Index: 02
Date modified: 11/06/2019
OI No.: BA SW 010-02 Granudos Touch-Steuereinheit EN SCHW 8.docx
Page 17 of 43
Explanation regarding the operation with external acid control (pH)
If a (existing) external dosing pump is to be operated for regulating the pH-Value, it must be remembered that the acid
dosing in the GRANUDOS is always active in order to avoid deposits in the solvent system.
In this case the acid control input can be clamped parallel on the chlorine control input (wire bridge).
With 230V control: on pin connector Nr. SL7 on the power plate NT-GRD, clamp 1+3 and clamp 2+4 is to brigde.
With potential-free control: on the I/O plate on pin connector Nr. SL10, clamp 1+3 and clamp 2+4 is to bridge.
Thus, during each chlorine dosing the acid dosing is activated as well. The dosing performance for the acid dosing must be
set to a low value here for the required cleaning function. However, it must also be checked whether the set dosing
performance is sufficient for the cleaning: the cyclone may not get turbid.
See also Section 6.3.2.12, Page 22.
Tip!
It is urgently recommended to connect the pH-control at the GRANUDOS to avoid
acid overdosing in the event of a fault in the chlorine dosing.
Manual dosing Off/On
It is possible to change over to continuous manual dosing. This may be
required in the event of a fault with the measurement technology, e.g.
electrode failure, that cannot be rectified. For a limited period of time,
both the disinfection dosing and the dosing of the pH regulation may
be performed via the emergency function Manual operation.
After activation of Manual dosing, the display in the start screen
changes.
CAUTION!
In the operation mode Manual dosing, the operating personnel must continually check
the water quality and adjust the dosing amounts. Non-compliance with this may result
in significant incorrect dosing!
Main Menu
Settings
Reserve indication chlorine
The quantities for which a reserve message will be displayed after
dosing are indicated here, as well as the size of the full container.
The message indicates that the chemical container will soon be empty.
The reserve message function can also be deactivated.
Main Menu
Settings
Reserve indication acid
The quantities for which a reserve message will be displayed after
dosing are indicated here, as well as the size of the full container.
The message indicates that the chemical container will soon be empty.
The reserve message function can also be deactivated.
