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General Information
2.2 Overview of product
The TSS Portable is a handheld measurement instrument for the analytical determination
of turbidity and solids in aqueous media.
2.3 Measurement instrument
The instrument stores the recorded data under the corresponding calibration curve. Four
calibration curves for solids (C-DS1, C-DS2, C-DS3, C-DS4) and one calibration curve for
turbidity (C-TU) are available for selection.
For solids measurements, a specific calibration must be assigned to each measurement
point (section 5.1, page 23).
All measurement values are saved with details of the selected calibration curve, the
measurement value, the homogeneity, the date and the time.
Various individual parameters for input, signal processing and output can be set in the
menu (Section 4, page 15).
2.4 Measuring principle
The measuring principle is based on a combined infrared absorption stray light process,
which determines the lowest turbidity value according to DIN EN 27027 just as precisely
and continuously as the high sludge content. In so doing, the light scattered sideways by
the turbidity particles is measured at an angle of 90°. In the case of solid material, the
measurement occurs at an angle of 90° and 120°.
2.5 Probe
The probe contains sensitive optical and electronic components. Care must therefore be
taken to ensure that it is not subjected to any hard mechanical impacts. The inside of the
probe, and of the display unit, does not contain any components that can be serviced by
the user.
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