Hach 2100 Series Laboratory Turbidimeters are engineered to provide superior accuracy and sensitivity in any application. The 2100AN 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 testing higher ranges of turbidity up to 10,000 NTU. Additional absorbance, transmittance, and color measurement modes make the 2100AN the most flexible of any Hach benchtop turbidimeter.
<ul>
 	<li>Ratio technology provides highly accurate results</li>
 	<li>Interchangeable color filters provide ultimate flexibility</li>
 	<li>Optional cell adapters of the 2100AN Turbidimeter allow measurement of smaller sample volumes</li>
 	<li>Built-in printer provides a record of calibration and measurement data</li>
 	<li>Air purge prevents condensation in the sample chamber of the 2100AN</li>
</ul>
<strong>Ratio technology provides highly accurate results</strong>
One keystroke initiates ratio measurement and activates an array of detectors in addition to the 90-degree nephelometric detector. Ratio measurement corrects for color interference, enhances calibration stability, and allows the measurement of turbidity at levels greater than 1000 NTU.

<strong>Interchangeable color filters provide ultimate flexibility</strong>
A variety of filter module assemblies are available to select the wavelength of light used for measuring samples. The instrument is supplied with an EPA filter assembly for turbidity measurement and a 455 nm filter assembly for use in APHA Pt-Co color measurement. Additional filter assemblies, including an 860 nm option for ISO 7027 compliance, are available as optional accessories for custom applications.

<strong>Optional cell adapters of the 2100AN Turbidimeter allow measurement of smaller sample volumes</strong>
Measure samples as small as 2.5 mL with Hach bencthop turbidimeters. Use the Application Specific Calibration ability of the instrument to provide direct reading of results with 12, 13, 16, or 19 mm sample vials. Small diameter sample cells are useful when only a small quantity of sample is available, the sample to be measured is ampuled and cannot be opened, or the sample is too turbid to be measured with the standard sample cell without dilution.

<strong>Built-in printer provides a record of calibration and measurement data</strong>
On-board printer saves bench space. Print interval feature automatically prints a displayed reading at selected print intervals.

<strong>Air purge prevents condensation in the sample chamber of the 2100AN</strong>
Measure cold and hot samples. A built-in connection is provided to purge the sample compartment with dry air to prevent light scattering caused by condensation.