Application - Filter Monitoring


Monitoring turbidity of filter effluent is required for regulatory compliance in many countries and helps to assure that the final product is safe for public consumption. In addition to meeting regulatory requirements, monitoring turbidity is also beneficial for optimizing filter performance, establishing filter backwash cycles, and detecting filter breakthrough. Turbidity instrumentation is available to meet the unique needs of both conventional and membrane filtration facilities.


Turbidity selection guide

Use our Turbidity Selection Guide to compare the FilterTrak 660sc, 1720E, Ultraturb sc, SOLITAX sc, and Surface Scatter 7 sc online turbidimeters.

Featured Products  

FILTERTRAK 660 Laser Nephelometer with sc200 Controller, 24VDC, 2 Channel

FilterTrak 660 Laser Nephelometer

Product #: 2977100
FilterTrak Laser Nephelometer offers the best resolution in the market. Detects changes in turbidity as low as 0.0005 NTU. Meets all USEPA filtering monitoring requirements. Compatible with Hach Multi-Sensor, Multi-Parameter Digital Controllers, sensor can be used with Hach's new sc200 or sc1000 Digital Controllers. Includes Manual and StablCal Turbidity Standards.

1720E Turbidimeter with sc200 Controller, 2 Channel

1720E Turbidimeter

Product #: 2976800
Meets and exceeds USEPA Method 180.1 for measuring turbidity for drinking water compliance. One controller accepts up to two plug and play sensors giving you two complete turbidimeters. Sensitive to fine changes in low level turbidity with a built-in bubble removal system. Built-in datalogger stores up to 6 months of data. Versatile digital output-MODBUS. Two year warranty.

SOLITAX sc PVC Wiper with sc200 Controller


Product #: 2983400
Includes a sc200 Controller and PVC t-line sc Turbidity Sensor (0.001 to 4000 NTU) with wiper. Measures turbidity in drinking water, wastewater, and industrial process applications. Any two SOLITAX sc sensors can be installed using one HACH sc200 Controller.

2100N Laboratory Turbidimeter, EPA, 115 Vac

2100N Laboratory Turbidimeter

Product #: 4700000
Hach 2100 Series Laboratory Turbidimeters are engineered to provide superior accuracy and sensitivity in any application. The 2100N Laboratory Turbidimeter is equipped with a stable halogen-filled tungsten filament lamp to meet the reporting requirements of EPA Method 180.1. This model is ideal for basic laboratory testing of samples up to 4000 NTU.

2100Q Portable Turbidimeter

2100Q Laboratory Turbidimeter

Product #: 2100Q01
The 2100Q Portable Turbidimeter offers unsurpassed ease of use and accuracy in turbidity measurement. Only Hach offers this unique combination of advanced features and measurement innovation, giving you accurate results every time. Compliant with USEPA Method 180.1 design criteria.

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