GRANUDOS 45/100 PLUS V70 Touch
Index: 03
Change date: 25.04.2018
Operating instructions no.: BA SW 001-03 Granudos 45-100 PL V70T.docx
Page 21 of 92
On d) pH monitoring (option)
When the filling of the buffer tank does not reach the chlorine dosing target value,
the acid dosing, which is set to a constant value, will create an acidic chlorine
solution that will then be dispensed by the measurement and control system when
more chlorine is required. This would reduce the pH value in the basin. The pH
value of the chloride solution is measured to prevent this. Filling is stopped and an
alarm is reported when the set target range for the pH value is exceeded.
75.
Ball valve for bleeding
76.
pH electrode
77.
Adapter PG13,5 for the pH electrode
78.
Head of the feed pump
79.
Connection to suction tubing in the buffer tank
Figure 13, pH value fault message
Figure12, pH measuring probe
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76
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