Basic Diode Array Detector for Liquid Chromatography and Process Technology

190 – 700 nm, diode array detector

The AZURA DAD 2.1L is a highly competitive diode array detector which combines 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. The DAD 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 with the Mobile Control software (stand-alone operation), via LAN or through analog input/output, allowing it to be integrated into almost any LC system.


Detector typeDiode array detector
Number of diodes256
Pixel pitch2 nm/diode
Detection channels8 (Digital)/4 (Analog)
Light sourceDeuterium (D²) lamp with integrated GLP chip
Wavelength range190 – 700 nm
Spectral bandwidth<10 nm at Hα line (FWHM) /Note: digital bandwidth 1 – 32 nm
Wavelength accuracy± 1 nm
Noise± 5 µAU at 254 nm (ASTM E1657-98)
Drift400 µAU/h at 254 nm (ASTM E1657-98)
Linearity> 2.0 AU at 274 nm (ASTM E1657-98)
Maximum data rate100 Hz (LAN)/12.5 Hz (analog)
Flow cellNot included (see Accessories / Spare parts)
Time constants0.00 / 0.01 / 0.02 / 0.05 / 0.1 / 0.2 / 0.5 / 1.0 / 2.0 / 5.0 / 10.0 s
Integration timeAutomatic
Wavelength verificationInternal holmium filter and deuterium lines
Leak sensorYes

General Information

InputsError (IN), Start (IN), Autozero
OutputsEvents 1 – 2 (Relay and TTL compatible, respectively), Error (OUT), + 5 V, Valve + 24 V, Valve (OUT)
Analog outputs4 x 0 – 5 V, 20 bit, offset adjustable
ControlMobile Control, software, event control, analog, terminal protocol
InterfacesLAN (RJ-45), USB (service only), multi-pin connector, analog (RCA cinch connector)
GLPDetailed report including lamp recognition, operating hours, lamp operating hours, number of lamp ignitions
DisplayMobile Control (optional)
Ambient conditionsTemperature range: 4 – 40 °C, 39.2 – 104 °F, Humidity: below 90 % noncondensing
Power supply100 – 240 V, 50 – 60 Hz, 75 W
Dimensions361 x 158 x 523 mm (W x H x D)
Weight12.2 kg
Basic Diode Array Detector for Liquid Chromatography and Process Technology
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