Superior Stand Alone Multi Wavelength UV Detector for Liquid Chromatography and Process Technology

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Article No.: ADJ01
Articlename: BlueShadow UV/VIS Detector 50D

Superior Stand Alone Multi Wavelength UV Detector for Liquid Chromatography and Process Technology

Variable multiple wavelength UV/VIS detector

The BlueShadow 50D offers high sensitivity and baseline stability for HPLC applications including fast LC methods. With its high speed scanning design, up to four different wavelengths can be monitored simultaneously while acquiring spectral data from 190 to 750 nm. Its remarkable values for noise, drift, and linearity are achieved through smart optical bench technology and the use of optimized components. The detector comes with an installed deuterium lamp which covers a wavelength range from 190 to 750 nm. This detector can be controlled with OpenLab® EZChrom Edition, ClarityChrom® software, as well as via the integrated display (stand-alone operation), via LAN, via RS-232, or through analog input/output. Due to a smart design the flow cell is easily accessible and can be changed very quickly. A wide range of flow cells is available for practically any LC application, including micro flow cells for flow rates up to 10 μl/min and flow cells for preparative HPLC up to 10 l/min.

Key Features

Technical Data


Detector type Variable multiwavelength detector
Detection channels 4
Light source Deuterium (D2) lamp with integrated GLP chip
Wavelength range 190 - 750 nm
Spectral bandwidth 6 nm at Hα line (FWHM)
Wavelength accuracy ± 1.5 nm (verification with integrated holmium oxide filter)
Wavelength precision 0.4 nm (ASTM E275-93)
Noise ± 7.5 µAU at 254 nm (ASTM E1657-98)
Drift 200 µAU/h at 254 nm (ASTM E1657-98)
Linearity > 2.8 AU at 270 nm (ASTM E1657-98)
Maximum data rate 50 Hz (LAN) 1 channel/20 Hz (Analog) 1 channel/10 Hz (RS–232) 1 channel
Flow cell Not included
Time constants 0.1 / 0.2 / 0.5 / 1.0 / 2.0 / 5.0 / 10.0 s
Integration time Automatic


Inputs Error (IN), Start (IN), Autozero, 0 - 10 V Analog IN
Outputs Events 1 - 3, + 5 V, 24 V Value
Analog outputs 2 x 0 - 5 V scalable, 20 bit, offset adjustable
Control Digital: LAN-DHCP, RS-232, remote connector/Analog: wavelength control/Manual: keypad
Programming Timed: wavelengths, events, fraction valve, links, wake up (program, link); /9 programs, 50 program lines

Technical parameters

GLP Detailed report including lamp recognition, operating hours, lamp(s) operating hours, /step motor operating hours, number of lamp ignitions
Display Matrix display with keypad
Ambient conditions Temperature range: 4 – 40 °C; 39.2 – 104 °F, Humidity: below 90 % non condensing


Power supply 100 – 240 V, 50 – 60 Hz, 75 W
Dimensions 242 x 169 x 399 mm (W x H x D)
Weight 5.3 kg

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 for 59 years.
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In addition, we have extended documentation about all our products, including CE Declarations of Conformity.
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