LS-DWHP

Deuterium Tungsten-Halogen

High Power Light Source

 

  • Great Performance
  • UV-Vis-NIR Spectral Range
  • Shutter Controller and Lamp Selector
  • Built-in Filter Slot and Slide Holder
  • Remote Control with SPEC Hub

DWHP is a powerful and stable light source that combines the continuous spectrum of two high-power deuterium and tungsten lamps in a single optical fiber SMA connector, which features an adjustable focusing lens assembly. The combined spectrum of these two lamps produces a highly efficient output between 180 and 2500 nm and provides the perfect amount of light for absorbance, transmittance, and reflectance measurements.

The integrated shutter on DWHP light source simplifies the operation for dark measurements and limits the exposure to UV light without the need to turn off the light source while the lamp selector makes it easy to choose between an individual or combined deuterium and tungsten lamp operation. Complementary to its high-power lamps, DWHP light source has a built-in filter slot that accommodates a filter holder for narrowing the wavelength range or reducing the light intensity.

A powerful light source

The combination of a 30-watt deuterium lamp with a 7-watt tungsten lamp in a shine-through configuration provides DWHP light source with high intensity over the entire UV-Vis-NIR range. For maximum light efficiency, this light source also incorporates an adjustable 12.7 mm collimating lens.

Select only the lamp you need

DWHP light source has an integrated lamp selector that allows you to choose between an individual and combined deuterium and tungsten lamp operation, according to your spectral region of interest.

Shutter control for maximum performance

The built-in shutter controller included on the DWHP light source enables either a simpler operation for dark measurements or a reduction of the exposure of samples to UV light without the need for turning off the light source, resulting in a more stable and extended lifetime.

Use filters to select the ideal spectra

DWHP light source has a built-in filter slot. The filter holder that fits in this slot allows you to work with any 12.7mm optical filter adding options like narrowing the spectral range (by using band-pass, short-pass or long-pass filters) or reducing the light intensity (by using neutral density filters).

Setup Examples

Absorbance with Flow Cell

L

Flow Cell

L

Patch Cord

L

Patch Cord

L

FLEX+ Spectrometer

L

Deuterium Tungsten High Power Light Source

LS-DWHP

Reflectance with Reflection Probe

L

Standard Probe Holder

L

Reflection Probe

L

FLEX Spectrometer

L

Deuterium Tungsten High Power Light Source

LS-DWHP

Technical Information

 

Description
Wavelength Range
Deuterium Lamp Power
Tungsten Lamp Power
Deuterium Lamp Lifetime
Tungsten Lamp Lifetime
Local Operation
Optical Filter Slot
Data
185-2500 nm
30 W
7 W
~ 2000 h
~ 4000 h
Shutter Controller and Selectors for Lamps and Local / Remote Operation
Filter Slot and Slide Filter Holder included (holds 1 filter with 12.7mm diam. and 3mm max. thickness)

More Information

Optical Fiber Connector SMA 905 with Adjustable Focus
Warm-up Time Approx. 30 min
Lamp Selector Waiting Time Approx. 10 s for Deuterium Lamp
Remote Operation Shutter, Lamp Selector (TTL Compatible signal)  (best with SPEC Hub)
Lamp cooler system Air Cooling
Power Consumption (max.) 70 W
Power Requirements 24 VDC / 4.5 ADC
Dimensions 250 (L) x 130 (W) x 105(H) mm
Weight 2.6 kg

Typical Applications

DWHP is a high-powered UV-Vis-NIR light source that exceeds the demands for absorbance, transmittance, and reflectance measurements. The continuous spectrum provided by the combination of these two lamps is stable and offers high efficiency for a wide range of educational, scientific, and industrial spectroscopic applications. Find out more about our measurements set-up that uses the DWHP light source in our Application Note Database.

Ordering Information

Part-Number
LS-DWHP
B-DWHP-D
B-DWHP-WH
HUB-LS
SFH-DWHP
Description
DWHP Light Source (power supply included)
Replacement Deuterium Lamp (180-400 nm)
Replacement Tungsten Lamp (400-2500 nm)
Optional SPEC Hub (cable included)
Slide Filter Holder for LS-DWHP (for 12.7mm diameter filters and 3mm max. thickness)

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