Dosing unit GRANUDOS Type Flex-CPR Touch XL,
Type Flex-Touch and Type Flex-S5
Index: 01 Change date: 11/10/2023
OI No.: BA SW 022-01 Granudos Flex Dosiereinheit EN.docx
Page 57 of 68
7.1.4
Setting the chlorine empty switch at the dosing hopper (option)
Overview chlorine dosing
Figure 43: Dosing hopper / Chlorine empty switch
Key
Description
The Chlorine empty switch (option) (22) can be accessed after removing the housing’s front cover. The
small adjustment screw with LED can be seen on top of the narrow side. When the dosing hopper is
empty, this LED must not be illuminated; the display must show Chlorine empty.
If the switch LED is illuminated, use a screwdriver to turn the adjustment screw (201) counter-clock-
wise until the LED goes out. The Chlorine empty fault indication appears at the control unit with a 6-
second delay. If the switch does not react to the adjustment potentiometer or if the adjustment screw
has been destroyed, a new switch must be installed.
Procedure for adjusting the empty switch
a)
Turn the adjustment screw clockwise until the LED at the empty switch lights up.
b)
Then carefully turn it back until the LED goes out, followed by an additional 10° turn.
c)
The Chlorine empty fault lights up in the display. After filling the dosing hopper above the
switch level, the fault indication in the display goes out.
7.1.5
Replacing the dosing hose of the peristaltic pumps (acid or flocculation)
The pump hose in the pump is subject to mechanical and chemical stresses. Therefore, the pump hose
must be checked at regular intervals in order to detect any damage in a timely fashion. See also mainte-
nance protocol.
201.
Adjustment screw
22. Chlorine empty switch (option)
25. Solenoid knocker (with connection
Summary of Contents for GRANUDOS Flex-CPR Touch XL
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