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DH-2000-BAL Balanced Deuterium Tungsten Halogen Source

DH-2000-BAL Balanced Deuterium Tungsten Halogen Source
    DH-2000-BAL Balanced Deuterium Tungsten Halogen Source
    Purchase DH-2000-BAL Balanced Deuterium Tungsten Halogen Source

  • Price: $3,605.00

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  • Ocean Optics DH-2000-BAL Balanced Deuterium Tungsten Halogen Source

    The innovative DH-2000-BAL is the world's only balanced UV-NIR deuterium tungsten halogen source.

    Ocean Optics has applied their 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.

    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 Ocean Optics 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

    Optical Fibers:
    We recommend using Ocena Optics solarization-resistant optical fibers with all versions of the DH-2000-BAL.


    • Eliminates D-alpha line in deuterium source

    • Stable output 215-2000 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 215-2000 nm.

    DH-2000-BAL Balanced Deuterium Tungsten Halogen Light Source Specifications:
    Dimensions: 150 mm x 135 mm x 319 mm

    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.
    Weight: 3.8 kg
    Power consumption : 25 W (deuterium); 20 W (tungsten halogen)
    Wavelength range:  215-400 nm (deuterium bulb)
    360-2000 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  


    All returns must be authorized by Spectra Services in order to insure proper credit and must be requested within 30 days of purchase. All returns are subject to a minimum 15% restocking charge. For returns not due to error on behalf of Spectra Services, the customer is responsible for all transportation fees related to the returned product. To ensure proper credit, each product return must include the following information:

    • Customer name and address
    • Purchase order number
    • Spectra Services shipping order number
    • Date of invoice
    • Item number of returned item(s)
    • Spectra Services return authorization number (RMA)
    • Reason for return

    Non-Returnable Goods
    Unfortunately, Spectra Services is unable to accept the following returns at this time:

    • Products not in completely resalable condition (including products with damaged, missing, or defaced labeling or packaging
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    • Products purchased on a special order
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    • Products with an expired shelf life or an expiration date too short for resale
    • Discontinued products

    Spectra Services reserves the right to review this policy on a case-by-case basis.

    Pre-Owned Products

    Upon receipt of the pre-owned product(s), the customer has one week to evaluate the product to ensure it meets their expectations. If for some reason the customer decides to return the product, they may do so at any point during those seven (7) days for a full refund. No restocking fee will be assessed, however, the customer is responsible for the return shipping costs. Full credit will be issued upon receipt and inspection of the item(s) to ensure equipment was returned in the same condition it was initially shipped out in.

    Important Information

    All exchanges and returns require the completion of a Return Merchandise Authorization (RMA) form. Once completed, please return the merchandise immediately as the RMA number is only active for ten (10) days from the date of issuance.

    Charges associated with returning items are the responsibility of the customer unless the item(s) arrived defective, damaged, or incorrect.

    Spectra Services highly recommends that return packages be insured for full value and packaged securely to prevent shipping damage.


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