Xylem WTW FCML 412-M12 Series Operating Manual page 13

Ph-independent sensor for free chlorine
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FCML 412 N(-S), FCML 412-M12
ba77197e02
01/2024
4.
Align the marking (1) on the sensor with the top edge (2) of the cou-
pling ring.
5.
Tighten the coupling ring by hand.
6.
Tighten the coupling ring approx. a quarter turn further with the M32
assembly wrench.
Make sure the sensor is firmly attached. Otherwise, it can be pressed
out of the flow through vessel by pressure.
NOTE
When commissioning, always open the feed slowly. A strong shock pressure
can destroy the membrane.
The assembly wrench, size M32, is available as an accessory
(see section 5.4 M
)..
PARTS
AINTENANCE EQUIPMENT AND REPLACEMENT
Commissioning
13

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