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

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Article No.: ADI01
Articlename: BlueShadow UV/VIS Detector 40D

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

Variable single wavelength

The BlueShadow detector 40D is a competitively priced HPLC spectrophotometer for routine HPLC applications including fast LC methods. Besides offering excellent technical specifications, this robust detector features a highly flexible and compact design. The BlueShadow Detector 40D comes with an installed deuterium lamp which covers a wavelength range from 190 to 750 nm. This detector can be controlled with ClarityChrom® software, as well as from the keypad (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. 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.

Key Features

Technical Data


Detector type Variable single wavelength UV detector
Detection channels 1
Light source Deuterium (D2) lamp with integrated GLP chip
Wavelength range 190 - 750 nm
Spectral bandwidth 11 nm at Hα line (FWHM)
Wavelength accuracy ± 2.5 nm
Wavelength precision 0.3 nm (ASTM E275-93)
Noise ± 15 µAU at 254 nm (ASTM E1657-98)
Drift 300 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 0.1 / 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 Valve
Analog inputs Wavelength 0 - 10 V
Analog outputs 1 x 0 - 5 V scalable, 20 bit, offset adjustable
Control Keypad, software, event control, analog: wavelength control
Interfaces LAN-DHCP; RS-232; pin header; analog (RCA cinch connector)
Programming Timed: wavelength, events, fraction valve, links, wake up (program, link); 9 programs, 50 program lines

Technical parameters

GLP Detailed report including lamp recognition, operating hours, lamp operating hours, grating motor operating time, 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


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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