Startup; Installation Of Electrodes And Sensors; Fitting Of Electrodes; Water Sensor - Grundfos AQC-D12 Instrucciones De Instalación Y Funcionamiento

10. Startup

10.1 Installation of electrodes and sensors

10.1.1 Fitting of electrodes

1. Unscrew the plugs of the holders (A, B) to be used.
2. Remove the protective caps from the electrodes. Keep them
for electrode removal.
3. Screw the electrodes into the holders by hand.
– Screw reference electrode in location K.
– Screw pH electrode in location A.
– Screw redox electrode in location B.
Observe the installation and operating instructions of
Caution
the electrodes!
pH (A) / Redox (B)
pH (A) / Redox (B)
E
Fig. 12 Holders for electrodes

10.1.2 Water sensor

The water sensor is next to the cleaning wing.
Note
12
K
E
J
F

10.1.3 Temperature sensor

1. Remove lock screw (C2), store for later use.
2. Screw in Pt100 temperature sensor (C1) (optional).
Fig. 13 Temperature sensor

10.2 Checking the position of the cleaning wing

The cleaning wing falls out when the measuring
Caution
electrode (J) is removed.
1. Visual inspection:
– The cleaning wing (S) must be seated on the measuring
electrode as shown.
Fig. 14 Position of the cleaning wing
2. If the cleaning wing is not seated correctly:
– Screw out the measuring electrode.
– Insert cleaning wing into the bore of the measuring electrode
using the entry pilot. It must be possible to freely move the
cleaning wing.
– Carefully screw in the measuring electrode again.
C2
C
S
J