The way to perform preventive maintenance on the analyzer is to remove it from the wall and place it
upside down on a table. Even with the disconnections needed to remove the analyzer you will be able
to work more quickly and accurately by avoiding potential problems such as dropped parts and mixing
balls jamming under the mixer.
Parts Removal
1. Turn off the power source and stop the sample flow to the system.
2. Disconnect the power and signal wires at the power supply board, and pull them out of the
conduit holes.
3. Disconnect the water sample supply line.
4. Remove flushing plug.
5. Disconnect the clear buffer feed tubing from the fitting on the flushing plug.
If you prefer to leave the analyzer mounted on the wall follow steps 4a & 4b. Otherwise proceed
to step 5.
4a. While holding the bottom block of the flow cell, unfasten and remove the four bottom screws
of the assembly (
Figure 51
).
4b. Carefully pull the bottom block, together with the copper electrode ring, down from the top
block (
Figure 52
). This should help prevent losing any of the 150 small PVC mixing balls
contained within the copper ring electrode. Pour the PVC balls into a container (
Figure 53
).
Proceed to step 11.
5. Remove the (4) mounting screws that hold the analyzer to the wall.
6. Place the analyzer upside down on a work bench or table.
7. Remove the (4) 1/4”-20 slotted screws that fasten the lower block to the upper block.
8. Lift the lower block and lay it on the table.
9. Tilt the analyzer and pour the mixing balls into a container.
Caution:
Do not loosen or remove the nut that secures the positive electrode unless
the seal is leaking. This will break the seal of the positive electrode on the lower block.
Pour PVC balls into a container
Remove bottom block
Remove
these (4)
screws
Do not remove or
loosen this nut
Figure 51
Figure 52
Figure 53
Caution:
Do not loosen or remove the nut that secures the positive electrode unless the seal is
leaking. This will break the seal of the positive electrode on the lower block.
Preventive Maintenance Kit
42
FX-1000p
