Process Analysis Systems & Total Solutions for Continuous Water & Wastewater Analysis

Online Turbidity & Suspended Solids

TSS W, Suspended Solids Inline Sensor with Wiper

Product #: LXV324.99.30002


TSS sc probes can measure both online suspended solids and turbidity in one instrument. They cover the total measurement range from the finest turbidity to solids over a wide range. TSS sc probes have been specially developed for industrial applications in production processes in the chemical and pharmaceutical sector and for the requirements of industrial wastewater plants. For high solids environments TSS W sc is equipped with a wiper to maintain accuracy. Inline model may be mounted with a safety armature for use to up to 6 bar.

Unique Multi-Beam Pulsed Infrared Light System

TSS sc probes have a double optical system with two pulsating infrared LEDs and four receivers. This combined multiple beam alternating light method with beam focusing facilitates accurate color independent measurement of turbidity from 0.001 to 4.000 FNU and suspended solids from 0.001 to 500 g/l.

Automatic Compensation for Air Bubbles and Temperature Swings for Accuracy

Special software enables the system to recognize gas bubbles or temperature swings for a more accurate suspended solids or turbidity measurement.

Standard Compliant and Precise - Ease of Calibration

The turbidity measurement complies with the standard DIN EN 27027 (ISO 7027). Calibration is not necessary. If the probe is used to measure the solids content, a one-point calibration suffices. For special applications, curves can be defined using several calibration points.

Withstands Difficult Conditions and Harsh Environments

Probes are made of highly polished stainless steel with a scratch resistant sapphire window. They are design to withstand harsh environments and keep particles from sticking to the surface.


Turbidity (TRB): 0.001 to 4000 FNU

Solids (TS): 0.001 to 500 g/L

(With SiO2 Standard Solution)


Turbidity: < 5 % of measurement value or ±0.01 NTU, whichever is greater

Special Notes (TSS):

Installation note:

Distance sensor–wall

> 10 cm (TSS)

Special Notes (Turbidity):

Installation note:

Distance sensor–wall

> 50 cm (Turbidity)

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