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Gently clean the optical chamber using a soft, damp
cloth. Do not use abrasive materials.
Recalibrate the meter using the supplied standards to
remove the offset.
Readings are unstable/variable
Turbidity is a measurement of scattered light with the
source of scattering being microscopic and larger
solids present in the sample. Solids can be mobile or
settle during measurement leading to changes in
readings over time.
Using the 'Continuous-Capture' mode will show the
changes over time.
Using the 'Average' mode will remove/reduce the
effects of settling or mobile solids.
The QuadoptiX™ system measures at four points and
will also reduce the effects of solid distribution across
the sample cuvette.
Total Suspended Solids (TSS) Results Inaccurate
The relationship between TSS and turbidity is a
site/sample/season specific correlation and will require
frequent validation. If results vary significantly from
laboratory data a repeat calibration should be carried
out.
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