Turbidimeters (Laboratory & Portable)
Ratio and no-ratio turbidity measurement modes are selected using the ratio key located on the instrument keyboard. With ratio toggled off, turbidity is measured using only the single 90-degree detector. Benefits of the ratio mode include long-term calibration stability, wide measurement range with excellent linearity, and the ability to measure turbidity in the presence of color.
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Features of 2100AN/2100N
Key benefits of the 2100AN/2100N Turbidity Meters: Easy calibration - Display prompts the analyst for each standard and automatically adjusts the curve as needed. There are no manual potentiometers to adjust. Easy operation - Simply place the sample cell in the compartment and close the light shield. Low range measurement - Resolution to three decimal places between 0 and 1.000 NTU. Wide range measurement - Measure up to 4000 NTUs with the 2100N or up to 10,000 NTUs using the 2100AN Turbidimeter. Multiple unit selection - Display NTUs, Nephelos, EBCs and more. Ratio and non-ratio measurement modes - Operator selectable modes. Built-in printer (2100AN model) - Output data to external computer or printer using RS232. Flow cell - Instruments accommodate a range of time-saving flow-cell accessories.
Both the 2100AN and 2100N Turbidity Meters offer these important features: Expanded ranges - Designed to measure turbidity over a wide range using three selectable readout modes–0 to 4000 NTUs; 0 to 26,800 Nephelos; and 0 to 980 EBCs--with manual or automatic range selection and decimal point placement in each range. Optional ratioing - One keystroke switches the instrument from the multidetector ratio mode to the non-ratio, single 90° detector measurement mode. Signal averaging - Minimizes noise and display fluctuations to provide true baseline measurements. Function may be selected on or off. Easy calibration - Calibration has never been easier with the step-by-step protocol built into the instrument's microprocessor. There are no manual potentiometers to adjust. Air purge system - A built-in air purge connection is provided to purge the optical compartment with dry air and minimize condensation on the sample cell. Flow-cell capability - Instrument accommodates any of three specially-designed optional Flow-Cell Systems for improved reproducibility, accuracy and convenience. Regulatory reporting - The 2100N and 2100AN Turbidimeters meet USEPA design and performance criteria specified in USEPA Method 180.1. Easy to operate and maintain - Convenient push-button switches on the front panel pace the user through microprocessor-controlled options for instrument operation and calibration. Bright LED display and clear annunciators - Digital display is easy to read under varied lighting conditions and viewing angles. RS232 input/output - This feature enables user to output data to a computer or external printing device. Self diagnostics - Self-test diagnostics detect error conditions. Error messages are referenced in the manual with corrective action information. Comprehensive information also is reported to permit trained service technicians to diagnose malfunctions precisely by telephone, FAX or mail. Meets worldwide industry safety and electronic design standards - Listed to UL 1262 and certified to CSA 22.2 No. 1010.1 by Edison Testing Laboratories (ETL). Carries the European CE compliance mark. Two-year warranty - Hach warrants the 2100AN and 2100N Turbidimeters against defects in materials or workmanship for two years from date of shipment.
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