Turbidity / TSS

Xylem Analytics - monitoring turbidity

Turbidity is the measurement of water clarity. Suspended sediments, such as particles of clay, soil and silt, frequently enter the water from disturbed sites and affect water quality. Suspended sediments can contain pollutants such as phosphorus, pesticides, or heavy metals. Suspended particles cut down on the depth of light penetration through the water, hence they increase the turbidity -- or "murkiness" or "cloudiness" -- of the water. High turbidity affects the type of vegetation that grows in water.

For long-term, in situ continuous monitoring of turbidity, a self-cleaning turbidity sensor is usually necessary to avoid fouling of the sensor and maintain accuracy. Xylem YSI products measure turbidity with an optical sensor. Light from the emitter enters the sample and scatters off particles in the water. The light, scattered at 90 degrees, enters a detector fiber and is measured by a photodiode. This follows the nephelometric technique of measurement, and values are expressed in nephelometric turbidity units (NTUs).

Resources

  • Handheld
  • Sonde
  • Sensor
  • Benchtop
  • System & Online
WQ730 TURBIDITY SENSOR & WQ770-B TURBIDITY METER

Global Water WQ730 Turbidity Sensor & WQ770-B Turbidity Meter

Global Water's Turbidity Sensor is a highly accurate submersible instrument for in-situ environmental or process monitoring. Applications for the turbidity sensors include: water quality testing and management, river monitoring, stream measurement, reservoir water quality testing, groundwater testing, water and wastewater treatment, and effluent and industrial control.

YSI ProDSS Handheld Instrument

YSI ProDSS - Digital Sampling System

The YSI ProDSS (digital sampling system) handheld multiparameter meter provides extreme flexibility for the measurement of a variety of combinations for dissolved oxygen, turbidity, conductivity, specific conductance, salinity, resistivity, total dissolved solids (TDS), pH, ORP, pH/ORP combination, ammonium (ammonia), nitrate, chloride and temperature along with depth.

6920 V2 Sonde

YSI 6920 V2 Sonde

The YSI 6920 V2 sonde is an economical water quality logging system, ideal for long-term in situ monitoring and profiling.Real-time turbidity monitoring, dissolved oxygen monitoring, algae monitoring, and more.

600OMS V2 Sonde

YSI 600OMS V2 Sonde

Measure optical dissolved oxygen, chlorophyll, blue-green algae, rhodamine, or turbidity in combination with temperature, conductivity and depth. Designed for use in fresh, sea or polluted waters, the 600OMS V2 data sonde utilizes the field-proven YSI sensors and incorporates innovations in water quality sensor modules that fits into the sonde body.

YSI EXO2 multiparamter water quality instrument

YSI EXO2 Multiparameter Sonde

The EXO advanced water quality monitoring platform includes the versatile multiparameter EXO2 sonde for oceanographic, estuarine, or surface water applications. Collect data to 250m with the advanced EXO2 sonde – contains six replaceable 'smart' sensors and a central wiper to clean biofouling.

YSI EXO1 and handheld

YSI EXO1 Multiparameter Sonde

Capturing accurate data in fresh water, ground water and marine aquatic environments is easy with the versatile multiparameter EXO1 sonde. Ideal for estuarine, surface water or ground water applications.

WTW VisoTurb®

WTW VisoTurb® 700 IQ & ViSolid® 700 IQ Sensors

With the VisoTurb® 700 IQ and ViSolid® 700 IQ sensors, WTW presents a family of optical sensors for turbidity and suspended solids measurement. These sensors incorporate a ultrasound cleaning system that guarantees low maintenance and long-term reliability of the sensors. Turbidity measurements in aqueous media with VisoTurb® are carried out nephelometrically in compliance with EN ISO 7027. Solid matter measurement with ViSolid® is performed according to the principle of scattered light measurement.

WQ730 TURBIDITY SENSOR & WQ770-B TURBIDITY METER

Global Water WQ730 Turbidity Sensor & WQ770-B Turbidity Meter

Global Water's Turbidity Sensor is a highly accurate submersible instrument for in-situ environmental or process monitoring. Applications for the turbidity sensors include: water quality testing and management, river monitoring, stream measurement, reservoir water quality testing, groundwater testing, water and wastewater treatment, and effluent and industrial control.

EXO Turbidity Smart Sensor

YSI EXO Turbidity Smart Sensor

The EXO turbidity sensor is a digital smart sensor featuring welded titanium construction and wet-mateable connectors. Complete calibration in less than 15 minutes using EXO's suite of smart sensors and intuitive KOR interface software.

6136 Turbidity Sensor

YSI 6136 Turbidity Sensor

The YSI 6136 Turbidity Probe is a fouling-resistant, wiped sensor designed to seamlessly integrate - using no external interface hardware - with all YSI sondes that contain an optical port. The YSI 6136 provides accurate, in situ measurement of turbidity in fresh, brackish, and sea water, as well as other applications requiring highly accurate turbidity data.

6436AF Anti-Fouling Turbidity Sensor

YSI 6436AF Anti-Fouling Turbidity Sensor

Copper-based parts on the YSI 6436AF Turbidity Sensor repel aquatic growth on sensors, extending deployment periods.
The YSI 6436AF Turbidity Probe is an anti-fouling, wiped sensor designed to seamlessly integrate - using no external interface hardware - with all YSI sondes that contain an optical port. The YSI 6136 provides accurate, in situ measurement of turbidity in fresh, brackish, and sea water, as well as other applications requiring highly accurate turbidity data.

YSI Turbidity Standard

YSI Turbidity Standard

YSI turbidity solutions calibrate your instruments for maximum accuracy. Extremely accurate and stable solutions.

Aanderaa Turbidity Sensor

Aanderaa Turbidity Sensor

This measurement is known to have a good correlation to the amount of suspended matter in water and can be used to monitor e.g. sediment, algae or particle pollution. The sensor generates an output voltage proportional to the turbidity or suspended solids. The low power consumption makes it ideal for applications where battery drain is a concern.

Seaguard RCM

Aanderaa SEAGUARD RCM

The single-point SEAGUARD® RCM series is a completely new generation of current meters based on the SEAGUARD® datalogger platform and the ZPulse® multi-frequency Doppler Current Sensor (DCS). SEAGUARD® Products are based on modern technology and are the basic modules of our underwater observatory. They may be used as a multi-parameter instrument in the sea and in freshwater and feature a modular plug-and-play architecture.

WTW 2020 XT

WTW IQ SensorNet 2020 XT Controller

With an easily scalable solution, the 2020 XT allows for the connection of up to 20 sensors. This modular plug-and-play system allows you to monitor the water quality in your wastewater system continuously and accurately.

Seaguard II DCP

Aanderaa SeaGuard II DCP

The brand new acoustic profiler joining the SeaGuard family. It features innovative development of the acoustic profiling capacity and an exceptional ability to collect high quality current information on moving and tilting moorings. Available as a self-recording instrument, it also integrates unique real time features to meet your application needs.