Manufacturer: Hach
Part Number: 4847000
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The Hach DR/800 Series Colorimeter is a microprocessor-controlled, LED-sourced filter photometer suitable for colorimetric testing in the laboratory or the field. The instrument is precalibrated for common colorimetric measurements and includes convenient calibration capability for user-entered and future Hach methods.

Key Features

  • Test results are displayed in concentration, absorbance, or percent transmittance
  • Automatic wavelength selection and ranging in the preprogrammed parameters
  • Data storage and recall for datalogging in the field or laboratory
  • Conversion of results to alternate forms for many parameters (i.e., PO4, P2O5, P)
  • Reagent Blank Correction and Standard Adjust features may be used to compensate for lot-to-lot variations in reagents
  • Icon prompts displayed during testing
  • A built-in timer to monitor specific reaction times called for in the test procedures; appropriate times are programmed into the calibration data for specific tests; the timer also can be used manually by the operator independent of the stored methods
  • IR output for RS232 interface capability allows an external printer or computer to interface with the colorimeter
  • Entry of user-entered methods or new Hach methods
  • Error signals for procedural or instrument troubleshooting
  • The colorimeter operates on battery power and holds 4 AA-size alkaline dry cells (batteries supplied) that power the instrument for at least 6 months

Wavelength Range

  • 420, 520, 560, 610 nm

Wavelength Accuracy

  • ±1 nm

Wavelength Selection

  • Automatic

Photometric Linearity

  • ±0.002 A (0-1 A)

Photometric Reproducibility

  • ±0.005 A (0-1 A)

Photometric Accuracy

  • ±0.005 A @1.0 ABS nominal

Source Lamp

  • Light emitting diode (LED)


  • Silicon photodiode

Data Readout

  • 4-digit LCD
  • 1.5-cm character height

Readout Modes

  • % Transmittance
  • Absorbance
  • Concentration

External Output

  • IR (infrared to RS-232 serial using the data transfer adapter)

Battery Power

  • 4 AA alkaline cells

Instrument Dimensions

  • 23.6 x 8.7 x 4.7 cm (9.3" x 3.4" x 1.9")

Instrument Weight

  • 470 g (1 lb.)

Photometric Range

  • 0-2 A

Stray Light

  • <1.0% at 400 nm

Battery Life

  • 6 months (typical)

Temperature Ranges

  • Operating Range: 0 to 50° C (32 to 122° F)
  • Storage Range: -40 to 60° C (-40 to 140° F)


  • 90% at 50° C


  • Designed to meet IP67 Standard
  • Dustproof
  • Waterproof
Specifications subject to change without notice