Xylem wtw DW/P Operating Manual page 21

DW/P
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figure 3-3 Install the chlorine sensor in the flow through armature
1 Marking on the chlorine sensor
2 Top edge screw gland
3 Outlet
4 Inlet
6. Align the marking (1) on the sensor with the top edge (2) of the screw
gland.
7. Tighten the screw gland by hand.
8. Tighten the screw gland approx. a quarter turn further with the installa-
tion wrench.
NOTE
Make sure that the sensor is firmly in place.
A sensor that is fastened too loosely can be pressed out of the flow through ar
mature when pressure is applied.
NOTE
Always open the inlet slowly for commissioning. A strong pressure surge can de
stroy the membrane.
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