Compact single wavelength UV detector with remote flow cell for liquid chromatography and process technology

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Article No.: ADA05
Articlename: AZURA UV Detector UVD 2.1S Fiber Optics

Compact single wavelength UV detector with remote flow cell for liquid chromatography and process technology

190 - 500 nm, small variable single wavelength UV detector with fiber optics connectors

The AZURA UVD 2.1S is a highly competitive single variable wavelength UV detector for HPLC. It offers excellent technical specifications for routine laboratory work. With its small footprint, it is one of the smallest detectors for HPLC on the market. The UVD 2.1S comes in the novel small AZURA housing. The installed deuterium lamp covers a wavelength range from 190 to 500 nm. The UV detector can be controlled with OpenLab® EZChrom Edition, ChromGate®, PurityChrom Bio and ClarityChrom® software, as well as from the front panel (stand-alone operation), via LAN, via RS-232, or through analog input/output; allowing it to be integrated into almost any LC system. Due to a smart design the flow cell is easily accessible and can be changed very quickly. You can choose between a wide range of flow cells for analytical or preparative LC applications with flow rates from 10 μl/min up to 10 l/min. This fiber optics version offers the possibility to separate the flow cell spatially from the device and thus provides enhanced security for hazardous, explosive or toxic work processes. Also available as a module for the new AZURA ASM 2.2L.

Key Features

Technical Data


Detector type Variable single wavelength UV detector
Version fiber optics version
Detection channels 1
Light source Deuterium (D2) lamp with integrated GLP chip
Wavelength range 190 - 500 nm
Spectral bandwidth 13 nm at Hα line (FWHM)
Wavelength accuracy ± 3 nm
Wavelength precision 0.7 nm (ASTM E275-93)
Noise ± 25 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 50 Hz (LAN)/20 Hz (Analog)/10 Hz (RS-232)
Flow cell Not included (see Accessories / Spare parts)
Time constants 0.00 / 0.02 / 0.05 / 0.1 / 0.2 / 0.5 / 1.0 / 2.0 s
Integration time Automatic


Inputs Autozero, Start (IN), Error (either IN or OUT), 0 - 10 V Analog IN
Outputs Error (either IN or OUT)
Analog inputs Wavelength 0 - 10 V
Analog outputs 1 x ± 2.5 V scalable, 20 bit
Control Front panel, 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 Lamp operating hours
Display LED
Ambient conditions Temperature range: 4 - 40 °C, 39.2 - 104 °F
Humidity: below 90 % non-condensing


Power supply External: input 100 - 240 V, output24 V DC, 60 W
Dimensions 121 x 129 x 187mm (W x H x D)
Weight 1.5 kg


Note Fiber optic cables and 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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