Cleaning The Membrane; Replacing The Electrolyte Solution And Membrane - Emerson Rosemount MCL-220 Manual

Maintenance
clean the membrane every month and replace the membrane and electrolyte solution
every two or three months. Actual cleaning and maintenance frequency can be
determined only by experience.
8.2.2

Cleaning the membrane

Keep the sensor free from dirt and algae. Periodically inspect the membrane. If it appears
fouled and the sensor response is less than expected, clean the membrane by using a
stream of water from a wash bottle.
CAUTION!
EQUIPMENT DAMAGE
Do not use a tissue to clean the sensor. Do not touch the membrane. Doing so may damage the
cathode, making the sensor unusable.
8.2.3

Replacing the electrolyte solution and membrane

WARNING!
HARMFUL SUBSTANCE
Fill solution may cause irritation. May be harmful if swallowed. Read and follow manual.
Procedure
1.
2.
58
Unscrew the membrane retainer.
Remove the membrane assembly and O-ring.
See Figure 8-1.
Figure 8-1: Monochloramine Sensor Parts
Rosemount MCL