Data Sheet Long-Life Deuterium Lamp

DX Series

The long-life deuterium lamp with highly stable light output

The DX deuterium lamp is a quartz spectral light source for high-end HPLC instruments, capillary electrophoresis instruments, spectrophotometers and other analytical instruments. It emits an almost continuous light spectrum from 185 nm to the visible range (400 nm +) which is ideal for all kinds of absorption measurements.

The DX lamp combines best-in-class performance in all three areas that are important for the analytical performance of the instrument:

■ Long lamp lifetime of 2000 hours for longer maintenance intervals

■ Very high stability/ low noise of light output throughout the entire life of the lamp for better signal-to-noise ratio

■ Low drift of light output

■ Optimized cathode design and coating

■ High-quality quartz glass made in-house

■ Precise lamp body construction using a combination of metal and ceramic parts

Key features of the DX deuterium lamp series:

■ Available as OEM lamp or as pre-aligned replacement lamp

■ Different lamp geometries available

■ Optional shine-through version

■ Continuous spectral emission from 185 nm to 400 nm

■ Guaranteed lifetime > 2000 hours

■ Guaranteed noise level ≤ 2x10-5 AU （approx.5x10-5 p-p)

■ Guaranteed drift < + 0.5%/h

Technical data for some DX types

Other specifications available upon request

*: The end of lamp life is reached when the light output falls to 50% of its initial value at 230 nm or when output fluctuation exceeds the specified value.

Spectral emission

Light output stability

Measured at 250 nm and evaluated according to ASTM

Radiant power

Measured at 230 nm