Versatile Multi Wavelength UV-Detector for Liquid Chromatography and Process Technology

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Article No.: ADB01
Articlename: AZURA Detector MWD 2.1L

Versatile Multi Wavelength UV-Detector for Liquid Chromatography and Process Technology

190 - 700 nm, multiwavelength detector

The AZURA MWD 2.1L is an 8 channel, sensitive multiwavelength detector combining high performance with easy handling at an affordable price. A wide range of easily exchangeable cartridge flow cells make this device the right choice for fast, standard analytical, semi-preparative and preparative separations with bio-inert or stainless steel wetted parts. State-of-the-art total reflection flow cells (LightGuide technology) are available for this device providing maximum light throughput (due to total internal reflection) with minimal peak dispersion (due to the small cell volume) to guarantee an optimized S/N ratio. An optional fiber optics adapter offers the possibility to separate the flow cell spatially from the device and thus provides enhanced security for hazardous, explosive or toxic work processes, as well as protecting the device from leakages at high flow rates. The newly developed optical unit and intelligent temperature management ensure for maximum sensitivity combined with minimal baseline drift. Furthermore, easy frontal access and improved safety features enable effortless lamp replacement. This eases maintenance and guarantees short downtimes. This device is also easily upgradable to a diode array detector. The MWD 2.1L comes installed with a deuterium lamp which covers a wavelength range from 190 to 700 nm. This detector can be controlled with OpenLab® EZChrom, ClarityChrom®, Chromeleon® and PurityChrom® software, as well as from the Mobile Control software (stand-alone operation), via LAN or through analog input/output, allowing it to be integrated into almost any LC system.

Key Features

Technical Data


Detector type Variable multiwavelength detector
Detection channels 8 (Digital)/4 (Analog)
Light source Deuterium (D2) lamp with integrated GLP chip
Wavelength range 190 - 700 nm
Spectral bandwidth < 10 nm at Hα line (FWHM) /Note: digital bandwidth 1 - 32 nm
Wavelength accuracy ± 1 nm
Wavelength Repeatability ± 0.1 nm
Noise ± 5 µAU at 254 nm (ASTM E1657-98)
Drift 400 µAU/h at 254 nm (ASTM E1657-98)
Linearity > 2.0 AU at 274 nm (ASTM E1657-98)
Maximum data rate 100 Hz (LAN)/12.5 Hz (analog)
Flow cell Not included (see Accessories / Spare parts)
Time constants 0.00 / 0.01 / 0.02 / 0.05 / 0.1 / 0.2 / 0.5 / 1.0 / 2.0 / 5.0 / 10.0 s
Integration time Automatic
Wavelength verification Internal holmium filter and deuterium lines
Leak sensor Yes


Inputs Error (IN), Start (IN), Autozero
Outputs Events 1 - 2 (Relay and TTL compatible, respectively), Error (OUT), + 5 V, Valve + 24 V, Valve (OUT)
Analog outputs 4 x 0 - 5 V, 20 bit, offset adjustable
Control Mobile Control, software, event control, analog, terminal protocol
Interfaces LAN (RJ-45), RS-232 (SUB-D 9, service only) multi-pin connector, analog (RCA cinch connector)

Technical parameters

GLP Detailed report including lamp recognition, operating hours, lamp operating hours, number of lamp ignitions
Display Optional Mobile Control
Ambient conditions Temperature range: 4 - 40 °C, 39.2 - 104 °F
Humidity: below 90 % noncondensing


Power supply 100 – 240 V, 50 – 60 Hz, 75 W
Dimensions 361 x 158 x 523 mm (W x H x D)
Weight 12.2 kg


Note Flow cells are not included and must be ordered separately (see Accessories / Spare parts)

Documents and more information

Certified Quality 

KNAUER is known for the quality of its products and has been certified several times. We produce high-tech laboratory instruments for research, routine analysis and production.
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In addition, we have extended documentation about all our products, including CE Declarations of Conformity.
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