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Description: The DU Series Spectrophotometer is a microprocessor- controlled spectrophotometer intended for use in quantitative and qualitative biological. The Beckman DU Spectrophotometer is an efficient stand alone system that comes with complementary accessories to produce accurate results. Beckman DU UV/Vis Scanning Spectrophotometer. This refurbished DU Spectrophotometer unit; PDF Manual; Mouse; Power cord.

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Retrieved 30 August Coleman Instruments had recently coupled a pH meter with an optical phototube unit to examine the visual spectrum the Coleman Model DM. Retrieved from ” https: Massachusetts Institute of Technology. Introduction to instrumentation in life sciences.

Ultimately, the accuracy of such approaches was dependent on accurate, consistent development of the photographic plates, and on human visual acuity and practice in reading the wavelengths. All pictures shown above are of actual product s sold. In contrast, examining a food sample with a DU spectrophotometer yielded better results in a matter of minutes.

The responsibility is between customer and carrier. Warranty is only for 14 day DOA guarantee for full refund less manuxl, buyer spectropyotometer return shipping. It used a tungsten light source with a glass Fery prism as a monochromator. For questions about using the LabWrench web site please call us.


See all condition definitions – opens in a new window or tab All returned items MUST be in original condition, packaging, sealed, and unused. Add to watch list.

Beckman DU UV/Vis Scanning Spectrophotometer | BridgePath Scientific

The DU spectrophotometer differs in that it claims to be useful from to millimicrons, [36]: Joseph; Wolf, Frederick T. Replied to gr’s post on October 2 nd Gerty Cori was also the first to show spectrophogometer a defect in an enzyme can be the cause of a human genetic disease.

Other advantages included its high resolution and the minimization of stray light in the ultraviolet region. Archived from the original on February 4, Select your measurement mode from the menu at the top of the screen. The A, B, and C prototype models all coupled an external Beckman pH meter to the optical component to obtain readouts.

In Morris, Peter J. Missouri City, Texas, United States.

Principles, Methods, and General Applications. Shipping and Return Policies.

Spectrophotometer, DU640

Watsondiscussing his findings with them. Journal of Biological Chemistry. Spare ink cartridges and paper befkman the printer are kept on hand. Additional assistnace can be found using the on-screen help. Replied to gr’s post on August 21 st USA Customers Items are shipped within two business days after payment is received. There is a shipping surcharge to items shipped to Alaska, Hawaii and Puerto Rico.


After Beckman went electronic back in the late 90’s, very little changes were ever made to the paper copies unless a new run of manuals needed to be made for training purposes and NONE of the service manuals EVER included service updates of any kind so you’re still missing out on the most important information that was released about the product. National Museum of American History.

Equipment Information

The DU Series operates in the wavelength range of to nm. Show 24 32 64 Technical Setup applied to both of the following applications 1. Another bit of area history deserving notice”. Seller does not offer returns. The last DU spectrophotometer was produced on July 6,