Measuring Turbidity; Measuring Methods Of The Turb 555 And Turb 555 Ir - wtw Turb 555 Operating Manual

Operation
Measuring system
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4.2

Measuring turbidity

4.2.1 Measuring methods of the Turb 555 and
Turb 555 IR
The measuring system consists of a light source, the cuvette
with the sample, a beam splitter and a total of four light de-
tectors:
2
1
1 Light source: Tungsten lamp (Turb 555) or
infrared light source (Turb 555 IR)
2 Reference detector
3 Lens
4 Cell with sample
5 Beam splitter
6 Transmission detector for low transmission (high
turbidity)
7 Transmission detector for high transmission (low
turbidity)
8 Nephelometric detector
3
Turb 555 / Turb 555 IR
4
5
8
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7