Ocean Optics DH-2000-CAL

The DH-2000-CAL Deuterium Tungsten Halogen Calibration Standard is a UV-NIR light source used to calibrate the absolute spectral response of a radiometric system. With the DH-2000-CAL and SpectraSuite Software, you can determine known absolute intensity values at wavelengths from 220-1050 nm.

The DH-2000-CAL is specifically calibrated for use with optical fibres or a cosine corrector; the calibration data includes absolute intensities for wavelengths between 220-1050 nm at the fiber entrance port for both a bare fiber and a CC-3-UV Cosine Corrector.


  • UV-NIR Calibration Source. For use in performing fast, radiometric calibrations from 220-1050 nm

  • NIST-traceable Calibration from 220-1050 nm. Provides absolute spectral intensity in µW/cm2/nm at the fiber port

  • Calibration Certificate. Calibration data is provided in paper and electronic formats for use with SpectraSuite Software

Included with the Lamp

The DH-2000-CAL comes with the CC-3-UV Cosine Corrector. Also included is a calibration certificate and a diskette with a data file for use with our SpectraSuite Software.

Other Calibration Services

The DH-2000-CAL typically provides about 50 hours of operation before recalibration is necessary. We recalibrate these lamps in-house. Also, by using our SPEC-CAL-UV in-house calibration service, it is possible to have your UV spectrometer radiometrically calibrated without purchasing a DH-2000-CAL. The calibration is good for about one year, provided the optical fiber is not removed from the setup, as the system is calibrated specifically for use with a fiber.

User's Tip

Radiometric Calibration Sources are not illumination sources for spectroscopic measurements. For illumination, use the DH-2000.

DH-2000-CAL Spectral Output

HL-2000 Spectral Output












These spectral output graphs were taken separately for the deuterium (200-400 nm) and the tungsten halogen bulbs (400-1100 nm) to avoid a sharp line spectrum >400 nm in the deuterium trace.









DH-2000-CAL Specifications

Dimensions: 150 mm x 135 mm x 319 mm
Weight:  6 kg
Power consumption:  25 W (deuterium); 20 W (tungsten halogen)
Calibrated range:  220-1050 nm
Calibration accuracy:  +/-5%
Calibration valid for: 50 hours
Lamp current:  Operating 85 V/0.3A
Lamp voltage:  350 V
Power requirements:  85-264 V 50/60 Hz
Current voltage drift:  <0.01% per hour
Current voltage stability:  <5 x 10-6 peak-to-peak (0.1-10.0 Hz)
Humidity: 5-95% without condensation at 40 °C
Operating temperature:  5 °C - 35 °C
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

Lasers & other Sources