Beckman DU 640 Spectrophotometer

User Manual: Beckman-DU-640-Spectrophotometer

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General Information

Today’s spectrophotometer users expect a complete and integrated system which eases sample handling

tasks, accurately measures samples and delivers quality results quickly and easily. The DU® Series 600 and

7000 spectrophotometers were developed to satisfy these expectations. These are the instruments that are

setting a new standard in spectrophotometry. The window-oriented user interface with full mouse support

provides a friendly environment and drastically reduces learning time while increasing productivity. With all

this, the system may reintroduce another lost element to your work…enjoyment.

Technical Specifications

Operating Temperature 15° to 40°C

Wavelength Range 190 – 1100 nm

Wavelength Setability 0.1 nm increments

Wavelength Accuracy ± 0.2 nm

Wavelength Repeatability ± 0.1 nm

Spectral Bandwidth ≤ 1.8 nm

Photometric Readout -0.300 to +3.000 A or 0.0 to 200.0% T

RMS Noise < 0.0002 A RMS

Stray Light < 0.05% T

Stability < 0.003 A/hr

RMS Baseline Flatness ± 0.001 A

Scanning Speeds 120. 240, 600, 1200, 2400 nm/minute

Data Collection Rate 20 samplings/second

Dimensions (W x H x D) 69 x 61 x 53 cm (27 x 24 x 21)

Temperature Operating Range 15° to 40°C

Power Requirements 120VAC, 50/60Hz

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