Choose the right light source -

Choose a tungsten light source to comply with U.S. EPA 180.1 requirements, or an LED to comply with European ISO 7027 Turbidity Measurement Standards.

Otherwise, choose a light source that matches the parameters of your application. For samples with very small particles, a tungsten lamp is preferred for its shorter wavelengths and greater sensitivity in the low range of turbidity (< 1 NTU).

For colored samples - in industries such as foods, petrochemicals and pharmaceutical processing - the LED is generally superior. (Hach's Ratio Measurement mode is also an effective method of reducing color interference. For the greatest possible reduction of color and other sample interferences, use an LED-based turbidimeter and Ratio Measurement.)

Choose the right level of performance -

The 2100N and 2100N IS are ideal for daily analytical tasks or for regulatory monitoring. Step-by-step menus guide you through calibration, normal operation and diagnostics. Advanced features like Ratio Measurement and signal averaging ensure that your results will be accurate and consistent in all conditions.

The 2100AN and 2100AN IS are ideal for research, process monitoring and product control at any level of turbidity - up to 10,000 NTU. Programmable signal averaging, calibration curves, recorder outputs and a built-in printer are powerful tools for optimizing your test procedures and managing your results.

Data Sheet

Hach makes a 2100 Series Turbidimeter for virtually every application - and every model includes technology and reliability you won't find anywhere else.

Regardless of your requirements for regulatory compliance, accuracy, or sensitivity at extremely high or low levels of turbidity, there is a 2100 Series Turbidimeter that meets your needs exactly.

StablCal Stabilized Formazin Standards - No preparation, fast calibration.