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Beckman Coulter UV-VIS Spectrophotometer DU 640

Beckman Coulter UV-VIS Spectrophotometer DU 640

$995.00

This Beckman DU640 has been fully cleaned, decontaminated, tested, inspected and verified to be in great working condition. Unit was still in operation and verified with user prior to deinstalling. 

30 Day Warranty!

Includes: Beckman DU640 Spectrophotometer, Monitor, Mouse, Spare Lamps & Everything Else Shown

The Beckman DU-640 is a full-featured scanning spectrophotometer with micro-focused beam technology provides precise and accurate results for samples as small as 5uL. The micro-focused beam delivers the full energy of the beam to the microsample, unlike standard beams, which can lose as much as 80% of their energy when applied to a microvolume sample.
Wavelength Range: 190 to 1100 nm.
Wavelength Accuracy: +/-0.2 nm (at D2 peak 656.1 nm).
Wavelength Repeatability: +/-0.2 (at D2 peak 656.1 nm).
Spectral Bandwidth: <=1.8 nm.
Photometric Readout: -0.300 to 3.000 A or 0.0 to 200.0 %T.
Photometric Accuracy: +/-0.005 A (at 1A with NIST 930D solid filter at 546 nm).
Stray Light: <0.05 %T (using NaI at 220 nm per ASTM E387-84).
RMS Noise: <0.0005 A RMS (OA, average readings at 500 nm).
Scanning Speeds: 120, 240, 600, 1200, 2400 nm/minute.

Product ID # 2645


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