GENEQ > Biotechnology > UV

Spectra/Chrom® UV Detector
Model 280

  
The Spectra/Chrom Model 280 UV Monitor is a fixed wavelength flow-through spectrophotometer specifically engineered for use in chromatography. It features a direct reading digital output and a dual beam optical system that allows the automatic subtraction of a solvent background even in the presence of a rapidly changing gradient.

The Spectra/Chrom Model 280 UV Monitor comes complete with filters for operation at 254 and 280 nm and a dual 5 mm pathlength flow cell.

FEATURES
  • Dual-beam Optics
  • Cold-room Compatible
  • Digital Readout
  • Detection Limit 3 x 10-4AU
  • 3 Flow Cells available
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    SPECIFICATIONS
    Power Requirements 115 +/- 20 VAC
    230 +/- 40 VAC
    20 VA
    Line Frequency 45 to 65 Hz
    Stability Maximum drift 0.0005 AU per hour after 30 minute warm-up
    Rise Time 10-90% rise time is 0.6 sec on 0.5 AU range
    Full-Scale Absorbance Ranges 0.01, 0.02, 0.05, 0.1, 0.2, 0.5, and 1.0 Absorbance Units
    Linearity Maximum error 1.5% of full scale at 254 nm
    Noise Level less than 0.0003 AU at 254 nm with dry flow paths after 30 minute warm-up
    Weight 4.1 kg (9 lb)
    Operating Temperature 0°C to 40°C, noncondensing
    Display Accuracy +/- 3 counts

    CAT. NO. DESCRIPTION
    142600 Model 280 UV Detector, 115V, Domestic US, includes both 254 and 280 nm
    142602 Model 280 UV Detector, 230V, European, CE Marked, include both 254 and 280 nm
    Accessories
    142608 254/280 nm Filter slide. (This combination slide is included with the Spectra/Chrom UV Monitor.)
    142642 5 mm pathlength dual flow cell. (This flow cell is included with Spectra/Chrom UV Monitor.) Illuminated volume 34 µL; hold-up volume 134 µL (per flow path).
    142644 2 mm pathlength dual flow cell. Illuminated volume 14 µL; hold-up volume 54 µL (per flow path).
    142640 10 mm pathlength dual flow cell. Illuminated volume 68 µL; hold-up volume 268 µL (per flow path).