Fig. 4 Optical System Dad 6.1L - Knauer Azura DAD 2.1L Benutzerhandbuch

Legend
Deuterium lamp
1
Halogen lamp
2
Flow cell
3
Diode array sensor
4
Diffraction grating
5
Mirror
6
Lamps
DAD 6.1L
DAD 2.1L, MWD 2.1L
Lamp mirror
DAD 6.1L
Flow cell
KNAUER LightGuide
flow cell cartridge
Data rate
Leak Management
KNAUER
8 Intended Use
The optical system of the AZURA DAD 6.1L detector is depicted
in figure 4. An active temperature control with 0.5°C sensitivity
ensures baseline stability for minimal baseline drift.
1
2
3
4
Fig. 4 Optical system DAD 6.1L
The lamps can be exchanged quickly and easily without the
need of a service technician.
Two light sources, a deuterium lamp and a halogen lamp, cover
the entire UV-Vis wavelength range of remove space 
190–1020 nm.
A deuterium lamp covers the UV wavelength range of 190–500
nm.
Maximum light intensity is provided by effectively mixing the
light sources from the deuterium and halogen lamps with a mir-
ror using Polka Dot technology.
Various types of flow cells are available to the user and allow a
variety of applications. Flow cell cartridges with standard and
KNAUER LightGuide technology are available.
KNAUER LightGuide flow cell cartridges combine a maximum
light transmission (using total reflection) with a minimum cell
volume to offer an ideal signal-to-noise ratio.
Adapter for fiber optics are additionally available. Fiber optics
allow separating the flow cell from the detector. This way, work-
ing with dangerous, explosive, or toxic materials becomes safer.
The detector measures with a maximum data rate of 100 Hz.
During the measurement, approx. 100 spectra per second are
recorded.
Integrated leak management drains liquids resulting from leaks.
DAD 6.1L, DAD 2.1L, MWD 2.1L User Manual V6700, Version 1.0
6
5