Spectra/Chrom® Model 280 UV Detector

The Model 280 UV Detector CE Mark The Spectra/Chrom Model 280 UV detector 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.

The Model 280 UV detector may be ordered as part number 142600 ($4232.00) for 115 V (US & Canada) use or as part number 142602 ($4199.00) for 230 V (European) use.

Features of the Model UV Detector Include:

Spectra/Chrom UV Detector Technical 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)
Dimensions: 9.25 x 4.75 x 8 inch
23.5 x 12 x 20.3 cm
w x h x l
Operating Temperature: 0°C to 40°C, noncondensing
Display Accuracy: +/- 3 counts

Optional Accessories for the Spectra/Chrom UV Monitor
Part No.DescriptionPrice (US$)
142608 254/280 nm Filter slide. (This combination slide is included with the Spectra/Chrom UV Monitor.)646.00
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).

CE mark
The Spectra/Chrom UV Monitor is CE marked.

An alternate description of the Spectra/Chrom UV Monitor may be found here and here.