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DATA SHEET

DR/800 Series Colorimeters Multi-parameter analysis in the palm of your hand!
Features and Benefits
Choose from Three Models
Depending on your testing needs, you can select a DR/820, DR/850 or DR/890 Colorimeter, preprogrammed to test for at least 20, 50 or 90 parameters, respectively. All three models include the same convenient features: auto-wavelength selection, dataloggingcapabilities and user-generated calibrations. Refer to the table on pages 3-4 to select the colorimeter that tests the parameters you require. These durable, hand-held, filter photometers are designed specifically for the rigors of on-site testing, with rugged components and waterproof, dustproof, chemical-resistant housings. DR/800 Series Colorimeters offer simple, push-button program selectionand step-by-step prompts that guide users through the testing procedure. These instruments are equally appreciated by experienced analysts who value test efficiency and by operators who require ease of use with accurate results.

Advanced Features Add Value
• Easy-to-use software offers push-button method selection, automatic wavelength selection and a preprogrammed method timer. Result, units,and parameter name are displayed immediately, with no countdown. The large digit display is very easy to read. • The DR/800 retains the selected method until a new method is entered, even if it is turned off and then back on. This allows a series of analyses to be performed for the same parameter without reselecting the method. • Datalogging capability includes push-button record management. Easilystore data in the field for later access, with no delay in testing. The instrument stores up to 99 measurements in an internal, non-volatile memory. Data stored includes date/time, parameter, program number, concentration/absorbance/%T, sample number, and instrument serial number. • Results are displayed directly in units of concentration, absorbance, or % transmittance. In many methods,concentration in alternate chemical forms is also available. For example, phosphate readings are available as P, PO4 and P2O5. Displayed results can be changed from one form to the next at the touch of a button. • User-program feature allows users to generate up to 10 custom procedures, with up to 12 data points each, and store them in a non-volatile instrument memory for later use. • Advanced softwareincludes automatic correction for reagent blanks and the option to fine-tune calibration curves with the standard adjust feature. • Batteries provide self-contained power for field-testing.

Hach DR/800 Series Colorimeters combine ease of use, multiple testing capabilities and field readiness. Analysis requires minimal time and preparation, with results displayed directly on the largeliquid-crystal display in concentration, percent transmittance, or absorbance units.

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Colorimeter

Accessories Simplify Data Management
The Data Transfer Adapter (DTA) fits on the colorimeter and accepts data sent from the instrument’s infrared LED transmitter. The DTA converts data to a standard RS-232 format and connects directly to a computer or printer. Data can be printed ordownloaded conveniently, after storage or during collection. DR/800 Series Colorimeters are compatible with HachLink™ Software, a Microsoft® Windows® compatible application that links instrument and computer, providing a convenient means of accessing and managing test data. Information including date/time, parameter, concentration/absorbance/%T, sample number, operator identity, and instrument serialnumber is accepted and stored in either text or tabular (spreadsheet) format, and can be easily transferred to popular spreadsheet or word-processing applications.

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Easy Quality Control
DR/Check™ ABS Standards are the optional choice to verify the performance of your DR/800 Colorimeter in seconds. Standards are formulated with neutral density gel that produces similar absorbance...