The DH-2000 Deuterium Tungsten Halogen Light Source combines the continuous spectrum of deuterium and tungsten halogen light sources in a single optical path.

The combined-spectrum light source produces a powerful, stable output from 215-2000 nm. In addition, deep-UV versions of the light source are available, providing a 190-1700 nm wavelength range.

The DH-2000 is available for $3102. Additional DH-2000 models are available.

Options and Accessories

Integrated shutters are also available with the DH-2000 and can be driven either by a switch or by a TTL signal. Another option is to include a filter holder with the system, which accepts filters up to 4 mm in thickness and as large as 25-mm square or 20-mm round in diameter. All versions of the DH-2000 have an SMA 905 Connector for easy coupling to our spectrometers and accessories via optical fiber, and a safety shutter for blocking the light when the fiber is not attached.

Adjustable Power

All versions of the DH-2000 have a potentiometer on the back of the light source to balance the light level between the deuterium and tungsten halogen light sources. This potentiometer allows you to adjust the optical power of the tungsten halogen light from 10-100%.

Optical Fibers

We recommend using our solarization-resistant optical fibers with all versions of the DH-2000.

DH-2000 Spectral Output

This spectral output graph shows the output of the DH-2000 (red) at full power and the DH-2000 with the tungsten halogen at low power (pink), D-2000 (blue). The height of the deuterium atomic emission line depends on the optical resolution of the spectrometer.

DH-2000 Deuterium Light Source Specifications

Dimensions:	150 mm x 135 mm x 319 mm
Weight:	3.5 kg
Power consumption:	25 W (deuterium); 20 W (tungsten halogen)
Wavelength range:	190-400 nm (deep-UV deuterium bulb) 215-2000 nm (standard deuterium and tungsten halogen bulbs)
Humidity:	5-95% without condensation at 40 °C
Lamp current:	Operating 85 V/0.3A
Lamp lifetime:	1,000 hours
Lamp voltage:	Ignition 580 V @20°C
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
Radiation characteristic:	Aperture 0.5 mm, numerical aperture 26° (13°); focused Total power: 100 W
Power consumption:	Approximately 78VA
Warm-up time:	40 minutes (deuterium); 20 minutes (tungsten halogen)
Markings:	CE; VDI/VDE 0160; EN 61010

DH-2000 Deuterium Light Source Ordering Information

Item	Description
DH2000	Provides deuterium and tungsten halogen light sources in a single optical path; stable output from 210-1700 nm; adjustable tungsten halogen power
DH2000-DUV	Uses a Deep-UV deuterium bulb that provides 190-2000 nm wavelength range.
DH2000-S	Identical to the DH-2000, but comes with a  shutter (controlled via a TTL signal or switch up to 5 Hz)
DH2000-S-DUV	Identical to the DH-2000, except that it uses a deep-UV deuterium bulb, which provides a 190-1700 nm wavelength range and comes with a shutter (controlled via a TTL signal or switch up to 5 Hz)
DH2000-FHS	Identical to the DH-2000-S, but comes with a filter holder for filters up to 25-mm square or 25-mm round in diameter and 4 mm in thickness and a shutter controlled via TTL signal or switch up to 5 Hz
DH2000-FHS-DUV	Identical to the DH-2000-FHS, but uses a deep-UV deuterium bulb, which provides a 190-1700 nm wavelength range, and comes with a filter holder for filters up to 25-mm square or 25-mm round in diameter and 4 mm in thickness
DH2000-S-DUV-TTL	Identical to the DH-2000, except that it uses a deep-UV deuterium bulb, which provides a 190-1700 nm wavelength range and comes with a shutter (controlled via a TTL signal or switch up to 5 Hz). In addition the Deuterium and the Halogen bulb can be switched separately via a TTL signal.
DH2000-BH	Replacement tungsten halogen bulb for all versions of the DH-2000
DH2000-BD	Replacement deuterium bulb for the DH-2000, DH-2000-S, DH-2000-FHS
DH2000-DUV-B	Replacement deuterium bulb for the DH-2000-DUV, D-2000-S-DUV, DH-2000-FHS-DUV