Beckman DU-640i UV/Vis Spectrophotometer

The Beckman DU-640i Spectrophotometer is a full-featured scanning spectrophotometer with micro-focused beam technology provides precise and accurate results for samples as small as 5uL. The complete standalone system incorporates all of the needed components: CPU, graphical user interface, keyboard, 3-button mouse, and I/O ports 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.

Features:

– Dimensions: 27.5″W x 21″D x 10.5″H (outside)

– Power: 100/240 Volts, 50/60 Hz, 0.9/1.8A

– Wavelength Range: 190 to 1100 nm.

– Wavelength Setability: 0.1 nm increments.

– Wavelength Accuracy: +/-0.2 nm (at D2 peak 656.1 nm).

– Wavelength Repeatability: +/-0.1 (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: <0.0002 A RMS (OA, average readings at 500 nm).

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

– Scans or fixed wavelength reads.