Emerson Rosemount FCL, Reference Manual

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8.4.2 Cleaning the flow controller
The flow controller can be taken apart completely for cleaning.
Procedure
1. Use a strong flow of water to flush out the tubing.
Use a pipe cleaner or small bottlebrush to remove more adherent deposits.
2. To prevent leaks, apply a thin layer of silicone grease (or equivalent) to the two O-
rings as the base of the overflow chamber and to the O-ring sealing the central
overflow tube to the base.
8.4.3 Other maintenance
Table 8-2 and Figure 8-2 show the replacement parts for the flow controller assembly used
in the Rosemount FCL-01. Table 8-3 and Figure 8-3 show replacement parts for the flow
controller assembly used in the Rosemount FCL-02.
Table 8-2: Rosemount FCL-01 Constant Head Flow Controller Assembly Replacement Parts
Location in
Figure 8-2
PN Description
1 24039-00 Flow cell for chlorine sensor with bubble shedding nozzle
2 24040-00 O-ring kit, two 2-222 and one 2-024 silicone O-rings with lubricant
3 33812-00 Dust cap for constant head flow controller
4 9322032 Elbow, 1/4 in. FNPT x 1/4 in. OD tubing
5 9350029 Check valve, 1/4 in. FNPT
6 33823-00 Outside tube for constant head device
Maintenance Reference Manual
May 2019 00809-0100-3412
82 Emerson.com/Rosemount