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 Water analysis >
Colorimeter by Hach
  > Printable version

High-value, high-capability field instruments for water quality analysis.

Hach DR/800 Series Colorimeters combine ease of use with high testing capability and field readiness. These durable, hand-held, filter-photometer instruments are designed specifically for the rigors of on-site testing, with rugged components and waterproof, dustproof, chemical-resistant housings.

Depending upon 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, and equally suited for skilled analysts who value the time they can save, or for operators with limited training who appreciate ease of use and accurate results.

FAQ

Can I use a colorimeter or spectrophotometer to measure turbidity? 
 
Problem Solution:
Turbidity can also be approximated in an instrument such as a colorimeter or spectrophotometer by measuring the decrease in transmitted light due to turbidity in the sample. This type of measurement, however, is not considered valid by regulatory agencies and does not fit the definition of turbidity by the American Public Health Association.

Transmittance measurements are also susceptible to interferences such as light absorption from color or particle absorption. What´s more, there is no correlation that can be made between transmittance measurements (reported as FAU) versus measurements from a turbidimeter (reported as NTU). Nevertheless, colorimeters and spectrophotometers are sometimes used for determining large changes in the turbidity of a water system or for process control.

Any true turbidity measurement must be made in a turbidimeter. Hach Company has been designing and manufacturing turbidimeters for more than 50 years, and has a great deal of expertise in this area.
 
 


 



 Additionnal information:

  > DR-820 Parameters
  > DR-850 Parameters
  > DR-890 Parameters
  > Instruction manual
  > Brochure

ITEM
DESCRIPTION
CAD PRICE
EASY ORDER
DR-890
Hach Colorimeter 90 parameters.
2,059.00 $
DR-850
Hach Colorimeter 50 parameters.
1,725.00 $
DR-820
Hach Colorimeter 20 parameters.
1,289.00 $
27220-00
Carrying case.
189.00 $
48490-00
RS-232 Cable With adaptor.
389.00 $
Last Update: May 9, 2006
Prices are in canadian dollars and can change without notice.

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