4
Other Sensors
1.
Remove the black protective tube from the electrode tip, and clean
just the
tip
of the working electrode with the special abrasive paper
supplied. Avoid touching the electrodes! Place the special abrasive
paper on top of a clean paper towel and rub the electrode tip over
the abrasive paper, holding the electrode at a slight angle Repeat
several times at different angles. Never touch or clean the brown
electrode shaft.
2.
Open the vial containing the membrane cap. Empty out the water.
Make sure that only one grey rubber band is in the groove covering
the vent hole in the membrane cap. Fill the membrane cap to the
top with the electrolyte fill solution.
3.
Hold the sensor body vertically with the tip pointing down and
SLOWLY screw on the membrane cap until it is hand tight.
Be
prepared for some electrolyte solution to squeeze out from the
vent hole in the cap.
4.
Push the second grey band into the groove in the cap, making sure
that the bands are smooth and flush.
5.
Rinse your hands, the sensor, and all surfaces contaminated with
electrolyte solution with running water. Check the sensor for leaks,
especially at the membrane and the membrane cap threads. If any
leaks are detected, tighten the membrane cap or replace it.
6.
Push the cable onto the end of the sensor, aligning the pins with the
holes. Turn the connector until hand tight to seal the cable
connection.
Flow Cell Placement
Instructions for mounting the sensor into the process can vary greatly with
the circumstances that are encountered in your application. Here are some
general guidelines to assist you. Refer also to the typical installation
drawings.
The sensor should be mounted such that the measuring surfaces will
always stay wet.
If the membrane dries out, it will respond slowly to
changing disinfectant values for 24 hours, and if
dried out repeatedly, will
fail prematurely.
If the sensor is left dry for longer than 24 hours, the
membrane cap must be replaced!
The flow cell should be placed on the discharge side of a circulation pump
or downhill from a gravity feed. Flow into the cell must come from the
