Hach turbidimeters are the preferred choice of water quality managers around the world,
because they are engineered to provide superior accuracy and sensitivity in any application.
Since Hach introduced the first laboratory turbidimeter for testing drinking water more than
30 years ago, our optical system has evolved continuously.
Now – with new advances in optics,
digital signal processing, control and self-diagnostic software – these are still the world’s most
versatile and reliable laboratory turbidimeters.
Which 2100 Series Turbidimeter is right for you?
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.
With a back-scatter detector,
2100AN and 2100AN IS
models are uniquely equipped
to measure high levels of
turbidity (up to 10,000 NTU)
with excellent accuracy.
With Ratio Measurement
turned off, the instrument
uses only the 90-degree
detector to provide a pure
nephelometric measure of
In Ratio Measurement mode,
an array of additional
detectors provide data that
make 2100 Series
Turbidimeters even more
versatile. Hach’s patented
Ratio Measurement system
reduces color interference and
Hach 2100 Series Turbidimeters. The primary standard for versatility, accuracy and value.
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.
Hach’s patented StablCal Stabilized Formazin is true non-toxic
Formazin, not a synthetic – as required by ISO 7027 and EPA
180.1. It scatters light exactly like a freshly diluted, conventional
But StablCal is delivered
at precisely the concentration you need.
It requires no preparation before you
use it, and its stability is guaranteed
for a minimum of one year.
A complete selection of accessories are available to speed up
routine testing and improve the accuracy of your test results.
Flow cell kits – including a high-pressure flow cell – convert your
testing process into a nearly continuous operation.
conditioning accessories and special filter modules help eliminate
error caused by entrained gases and color interference.