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O&M Manual
Rev-D (11/19)
Part 8 – System Maintenance
8.1
General
The Q46 UV/Turbidity Monitor will generally provide unattended operation over long periods of
time. With proper care, the system should continue to provide measurements indefinitely. For
reliable operation, maintenance on the system must be done on a regular schedule. Keep in
mind that preventive maintenance on a regular schedule is much less troublesome than
emergency maintenance that always seems to come at the wrong time.
8.2
Analyzer Maintenance
No unusual maintenance of the analyzer is required if installed according to the guidelines of this
operating manual. If the enclosure door is frequently opened and closed, it would be wise to
periodically inspect the enclosure sealing gasket for breaks or tears.
8.3
Sensor Maintenance
Sensor maintenance is limited to simple cleaning of the optical surfaces. In general, wiping with a
soft cloth is all that’s needed. The optical surfaces can also be cleaned with a household glass
cleaner or a surface cleaner.
Never use abrasive pads on the optical surfaces
.
In some applications, the sensor might accumulate iron and manganese deposits that precipitate
from the water after chlorination. Should this occur, cleaning the sensor by soaking in solution of
a commercial iron remover such as “Red-B-Gone” will quickly remove deposits.
The lenses on the sensor are made of sapphire and do not scratch easily but the side wall
surfaces need to be cleaned only with soft cloth to avoid scratches that might affect the turbidity
measurement. Severe scratches can cause irreparable damage.
