DATA SHEET Colorimeter 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, datalogging capabilities 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 selection and 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. Easily store 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 software includes automatic correction for reagent blanks and the option to fine-tune calibration curves with the standard adjust feature. 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 large liquid-crystal display in concentration, percent transmittance, or absorbance units. DW WW PW IW 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 or downloaded conveniently, after storage or during collection. E 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 serial number is accepted and stored in either text or tabular (spreadsheet) format, and can be easily transferred to popular spreadsheet or word-processing applications. FB 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 readings at any wavelength. For all parameters at all wavelengths, running three secondary absorbance standards will verify your instrument’s calibration easily, anytime. • Batteries provide self-contained power for field-testing. DW = drinking water WW = wastewater municipal PW = pure water / power IW = industrial water E = environmental C = collections FB = food and beverage

2 Features and Benefits continued Affordable COD Analysis All three models include Hach’s Manganese III COD procedure (mercury-free version). The DR/850 Colorimeter also performs our traditional USEPA-approved high-range COD procedure, and the DR/890 Colorimeter performs both low-range and high-range USEPA-approved COD procedures. An adapter suitable for COD vials and Test ’N Tube™ (TNT) vials is included with each instrument. Push-Button Operation Speeds Analysis Using Hach prepared reagents, testing is normally accomplished in just a few minutes, following this simple procedure: 1. When turned...

3 DR/800 Colorimeters Quick Reference Guide DR /8 20 Number DR /8 50 Method DR /8 90 Test EP A Parameters marked “EPA” are EPA-approved, accepted, or equivalent for reporting purposes; sample pretreatment may be required on some procedures. If no reagent set is listed for a parameter, order needed reagents and supplies separately. • Product Number Aluminum Aluminon 8012 • • Ammonia, Nitrogen Salicylate 8155 • • 2668000 Ammonia, Nitrogen (Test ’N Tube), LR Salicylate 10023 • • 2604545 Ammonia, Nitrogen (Test ’N Tube), HR Salicylate 10031 • • 2606945 Ammonia, Free, Nitrogen Indophenol 10200 • •...

4 Manganese, HR • Periodate Oxidation 8034 • Methylethylketoxime (MEKO) Iron Reduction 8140 • Molybdenum, Molybdate, LR Ternary Complex 8169 • • DR /8 20 Number DR /8 50 Method DR /8 90 Test EP A DR/800 Colorimeters Quick Reference Guide continued • Product Number 2430000 2446600 • 2449400 Molybdenum, Molybdate, HR Mercaptoacetic Acid 8036 • 2604100 Molybdenum, Molybdate (AccuVac), HR Mercaptoacetic Acid 8036 • 2522098 Nickel PAN 8150 • Nitrate, Nitrogen, LR Cadmium Reduction 8192 • 2242600 • • 2429800 Nitrate, Nitrogen, MR Cadmium Reduction 8171 • 2106169 Nitrate, Nitrogen (AccuVac), MR Cadmium...