The AvaLight-DH-S-BAL is an improved version of the AvaLight-DH-S combined Deuterium and halogen light source, which can be used for UV/VIS/NIR applications. The AvaLight-DH-S-BAL has an innovative optical design, in which a dichroic beam splitter is integrated to give a much more balanced spectrum from 200-2500nm. The advantage of this design is that the disturbing alfa peak at 656 nm is filtered out and therefore a smooth, balanced spectrum is obtained. The optical output power of the BAL version is a factor 5 lower than for the standard version, but the dynamic range has increased by a factor 20, thanks to the filtering of the 656nm peak. A comparison spectrum as taken with a standard AvaSpec-2048UA is depicted in figure 18. An upgrade of existing AvaLight-DH-S to the balanced version is available. The AvaLight-DH-S-BAL has an SMA905 connector to be used with fiber optic cables and bundles. For optimal coupling an adjustable focus lens assembly is included. The light source supplies a continuous spectrum with high efficiency and highest stability in the UV, visible and near-infrared range from 200-2500 nm.
For UV only applications the AvaLight-D-S-BAL (only Deuterium) source is available.
For all Deuterium Light Sources solarization resistant fibers (-SR) are recommended (see the fiber optic section of this catalog). The output of the AvaLight-DH-S-BAL is optimized for fibers (bundles) with a diameter up to 1500 µm,
In all AvaLight-Deuterium sources an integrated TTL-shutter and filter holder for filters of up to 50x50x6.5 mm are implemented.
The Avalight-DH-S internal TTL shutter can be controlled from the AvaSpec, so the auto-save dark option in the AvaSoft software can be used (extra IC-DB15-2 or IC-DB26-2 needed).
The filter holder can be easily replaced by a direct attach cuvette holder CUV-DHS (see section accessories) useful for fluorescence or absorbance measurements.
Spectral output AvaLight-DH-S-BAL (red) vs. AvaLight-DH-S (blue)
Technical data
| |
Balanced Deuterium |
Balanced Halogen Lamp |
| Wavelenght Range |
215-500nm |
500-2500nm |
| Warm-up Time |
30 min. |
20 min. |
| Lamp Power |
78W / 0.75A |
5W / 0.5A |
| Lamp Lifetime |
1000 hrs. |
1000 hrs. |
| Noise (AU) |
2x 10-4 |
10-4 |
| Max. drift |
± 0.5%/hrs |
± 0.1%/hrs |
| Color Temperature |
- |
3000 K |
| Optical Power in 200µm fiber |
17 µW |
60 µW |
| Optical Power in 600µm fiber |
120 µW |
500 µW |
| Optical Power in 1000µm fiber |
300 µW |
700 µW |
| Power consumption |
90 Watt (190 Watt for heating D-Lamp 4-5 sec.)
|
| Power Requirements |
100-240VAC 50/60 Hz
|
| Dimensions / Weight |
315 x 165 x 140 mm / ca 5 kg.
|
Ordering Information
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AvaLight-D-S-BAL
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Balanced Deuterium light source, 200-400 nm, incl. TTL shutter, -SR fibers needed
|
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AvaLight-DH-S-BAL
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Balanced Deuterium-Halogen light source, 200-2500 nm, incl. TTL shutter, -SR fibers needed
|
|
DH-S-BAL upgrade
|
Upgrade existing AvaLight-DH-S to an AvaLight-DH-S-BAL Balanced Deuterium-Halogen light source, 200-2500 nm
|
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Products