VUV-24 Variable Wavelength UV-VIS Absorbance Monitor

The VUV-24 is a variable wavelength light absorbance monitor designed to be used with ultra low volume sampling cells under flowing solvent conditions (i.e. chromatography). The VUV-24 series of detectors has a high resolution analog output with a sensitivity range from 4.0 AU/V to 0.0005 AU/V and feature a state-of-the-art noise level of less than +/-0.00001 AU.

* Constant temperature with standard 10 mm cell (air).

Light source	Deuterium 190 nm-400 nm, >2000 hour service life
Optical design	Double beam (sample/reference)
Wavelength selection	User selectable (front panel or RS232) in 1nm increments
Wavelength accuracy	Better than +/- 2 nm range
Wavelength precision	Better than +/- 0.2 nm
Band pass	<8.0 nm (typical) at half-height @ 250 nm
Noise*	<+/- 1 x 10-5 AU over 30 sec period peak to peak with 1.0 sec rise time
Drift*	<+/- 1 x 10-4 AU over 30 min period peak to peak 1.0 sec rise time
Input/Output	RS-232 computer I/O; auto-injection (event or run); auto-zero input; one analog integrator or chart recorder output, (voltage range default 1.0 V/AU); selectable analog range outputs of 4.0, 2.0, 1.0, 0.5, 0.2, 0.1, 0.05, 0.01, 0.005, 0.002, 0.001, 0.0005 AU/V with voltage range of +/- 4V at any scale
Display	Absorbance (5 digit LED); wavelength (3 digit LED); analog output range (momentarily from absorbance display by pressing range switch); reference and sample light levels
Size	6.6" x 9.4" x 15" (HxWxD), Approx. 12 lb (shipping weight)

High Sensitivity

The VUV-24 series of detectors has a high-resolution analog output with sensitivity range from 4.0 AU/V to 0.0005 AU/V and feature a state-of-the-art noise level of less than +/-0.00001 AU

Flexible Configurations

The VUV-24 can be configured to use one of several light sources. Choices include a deuterium lamp with a working wavelength range from 190 nm to 400 nm, low pressure mercury lamp with a single wavelength of 254 nm, and a tungsten lamp that accommodates wavelengths from 400 nm to 900 nm. Specific wavelengths are selected by using an interference filter. One filter is included with each detector.
The VUV-24 has a broad line of sample cells available. These include cells designed for on column capillary monitoring, standard and high flow 5 mm and 10 mm path length HPLC cells, and preparative LC. Whatever your application the VUV-24 can serve as a reliable source for obtaining the results you want.

Reliable, Rugged, Low Maintenance Design

The VUV-24 is constructed with a high reliability lamp, true double beam sample/reference light paths and a robust universal power supply. A rugged tactile feedback keypad for instrument control is standard.

Wavelength Selection

The deuterium lamp has a working wavelength range from 190 nm to 400 nm. Specific wavelengths are selected by using a keypad input or RS-232 interface.

Original Equipment Manufacturer

Reflect Scientific offers complete units for private label to individual modules designed to fit your specific application. For further information please contact Reflect Scientific.