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446 M1 01 G
12-03-2015
7 MAINTENANCE
Cleaning intervals depend upon the type of liquid medium and must be determined by the user.
Cleaning the lenses:
• Disconnect the turbidity-measuring instrument from all sources of power.
• Depressurize pipes and empty liquid medium from the device.
• Remove the transmitters and the receiver from the fixture by unscrewing the sleeve nuts.
1) Screw the compression disc
2) Remove the O-ring.
3) Remove the lens with the included suction cup,
with the included tool and
and clean the lens.
remove it.
Do not use abrasive cleansers
Reassemble after cleaning by following the above instructions in reverse.
Note:
• Inspect the O-ring before reassembly and replace it if necessary.
• tighten the compression disc with the included tool (use the rod of the suction cup as a lever).
• Before reinstalling the transmitters and the receiver, refill the fixture with liquid medium and inspect for possible leaks.
Observe the positioning
of hole and pin.
Note for cold fluids:
• The fixture has to be installed on the piping with mounted sensors only.
• To clean the glasses, dismount the complete fixture.
After cleaning install as described above.
Sleeve Nut
This side has a dirt
repellent coating.
This side must face the
medium after the lens
has been mounted.
Observe the point
Observe above note if coated lenses are used.
