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You are in: Products > Oxygen Measurement
> Light Sources > LS2
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High intensity 100W tungsten halogen light source (50W option available).
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Max. intensity up to 1800 µmol m-2 s-1 in DW1, DW1/AD and LD1/2 electrode chambers.
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Max. intensity up to 8000 µmol m-2 s-1 in DW2/2, DW3 & LD2/3 electrode chambers using LS2/FO and A8 accessories.
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Integral optics provide minimum intensity variation across beam and little divergence from parallel.
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Integral infrared reducing Hot-Mirror filter.
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Mains powered stabilised power supply.
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Mounting slots allowing addition of filters for intensity attenuation or spectral modification.
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Overview
The LS2 light source is a high intensity (100W) tungsten halogen light source which is powered from a stabilised power supply. The lamp housing contains a cooling fan, infrared reducing “Hot-Mirror” and optics to provide light with minimum variation of intensity across the beam and little divergence from parallel. 2 slots are provided to accept 50mm square optical filters or a manual shutter plate. A range of light intensity steps may be achieved by adding permutations of the 4 A5 neutral density filters supplied (0.1,0.3,0.6 and 1.0 O.D.) to attenuate the light intensity. Maximum sample illumination intensities vary depending on the type of electrode chamber in use. The table below shows the maximum achievable sample illumination intensities for each electrode chamber.
| Chamber |
Max. Intensity |
| DW1 |
1800 µmols m-2 s-1. LS2 mounted horizontally to chamber |
| DW1/AD |
1800 µmols m-2 s-1. LS2 mounted horizontally to chamber |
| DW2/2 |
8000 µmols m-2 s-1. Requires LS2/FO and A8 accessories to interface with DW2/2 optical port |
| DW3 |
1800 µmols m-2 s-1. LS2 mounted on to locating ring of larger optical window
8000 µmols m-2 s-1. Requires LS2/FO and A8 accessories and 16mm dia. reducing adapter (supplied with DW3) inserted into smaller optical port |
| LD1/2 |
1800 µmols m-2 s-1. LS2 mounted horizontally to chamber |
| LD2/3 |
1800 µmols m-2 s-1. LS2 mounted horizontally to chamber
8000 µmols m-2 s-1. Requires LS2/FO and A8 accessories inserted into 16mm dia. optical port |
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