Get Balanced! The innovative DH-2000-BAL is the world’s only balanced UV-NIR deuterium tungsten halogen source.
We’ve applied our expertise in patterned dichroic filters to an innovation in light source technology to create the only combined-spectrum illumination source available that eliminates saturation and signal-to-noise problems associated with the D-alpha line in the deuterium source.
Eliminates D-alpha line in deuterium source
Stable output 215-2500 nm
Innovative filtering technology produces smooth spectrum across entire range
The DH-2000-BAL Deuterium Tungsten Halogen Light Source combines the continuous spectrum of deuterium and tungsten halogen light sources in a single optical path, producing a powerful, stable output from 215-2500 nm.
About the D-alpha Line
All deuterium-tungsten halogen sources have a D-alpha line, revealed as a jagged peak in the visible portion of the spectrum, that produces “unbalanced” output in the deuterium and tungsten halogen sources. Correcting for this deuterium line — a sharp spectral feature near 655 nm — is difficult. For example, if you adjust spectrometer integration time to reduce the intensity of this saturated spectral line, the efficiency of the system at UV wavelengths drops significantly, compromising signal-to-noise performance. Also, spectrometer efficiency is greatest in the same general spectral range as the 655 nm line, exaggerating its effects.
Proprietary Filtering Technology
Using the same high-precision patterned dichroic filter technology that distinguishes our Linear Variable Filters, the DH-2000-BAL balances the intensity of the deuterium and tungsten halogen sources, producing a “smoother” spectrum across the entire wavelength range and eliminating problems associated with saturation. By comparison, most combination UV-NIR sources can be adjusted for relative intensity only.
We recommend using our solarization-resistant optical fibers with all versions of the DH-2000-BAL.
A spectrum of the DH-2000-BAL, taken with an HR4000-CG-UV-NIR in scope mode, shows a balanced response across the UV-VIS-NIR with no D-alpha line.
|Dimensions:||150 mm x 135 mm x 319 mm|
|Power consumption:||25 W (deuterium); 20 W (tungsten halogen)|
|Wavelength range:||215-400 nm (deuterium bulb) 360-2500 nm (tungsten halogen bulb)|
|Humidity:||5-95% without condensation at 40 °C|
|Tungsten bulb voltage:||adjustable from 4.5 to 11.5 volts|
|Lamp current:||Operating 85 V/0.3A|
|Lamp lifetime:||1,000 hours|
|Lamp voltage:||Ignition 350 V/20°|
|Current voltage drift:||<0.01% per hour|
|Current voltage stability:||<5 x 10-6 peak-to-peak (0.1-10.0 Hz)|
|Operating temperature:||5 °C – 35 °C|
|Power requirements:||85-264 V 50/60 Hz|
|Total power:||100 W|
|Power consumption:||190 W maximum|
|Warm-up time:||40 minutes (deuterium); 20 minutes (tungsten halogen)|
|Markings:||CE; VDI/VDE 0160; EN 61010|