KNAUER AZURA UVD 2.1L UV/VIS Detector

The KNAUER AZURA® UVD 2.1L is a cost-effective UV/VIS detector designed for routine HPLC applications, including fast liquid chromatography methods. Combining reliable performance, compact dimensions, and flexible flow-cell options, it provides an ideal solution for analytical and preparative chromatography laboratories seeking dependable UV detection at an attractive price point.

The detector utilizes a deuterium lamp covering the wavelength range from 190 to 750 nm and offers excellent sensitivity and stability for everyday chromatographic analysis. Its smart mechanical design allows quick and easy access to the flow cell, minimizing maintenance time and maximizing instrument uptime.

A wide range of interchangeable flow cells is available, including stainless-steel and bio-inert versions suitable for analytical, semi-preparative, and preparative LC applications with flow rates ranging from 10 μL/min up to 10 L/min. The detector integrates seamlessly into virtually any LC system through LAN communication, analog I/O, and compatibility with leading chromatography software packages.

Key Features

• Cost-effective UV/VIS detector for routine HPLC applications
• Suitable for fast LC methods
• Wavelength range from 190 to 750 nm
• Single-channel variable wavelength detection
• Deuterium lamp with integrated GLP chip
• Compact and robust instrument design
• Easily accessible flow cell for rapid replacement
• Wide selection of interchangeable flow cells
• Compatible with analytical and preparative LC applications
• Flow rates from 10 μL/min up to 10 L/min
• Integrated leak sensor
• Automatic integration time adjustment
• LAN and analog communication interfaces
• Comprehensive GLP functionality
• Compatible with ClarityChrom®, OpenLAB®, Chromeleon™, ChromGate®, PurityChrom®, and Mobile Control

Technical Specifications

Detection System

• Detection channels: 1
• Light source: Deuterium (D₂) lamp with integrated GLP chip
• Wavelength range: 190–750 nm
• Spectral bandwidth: 11 nm (FWHM)
• Wavelength accuracy: ±2.5 nm
• Wavelength precision: 0.3 nm

Performance

• Noise: ±15 µAU at 254 nm
• Drift: 300 µAU/h at 254 nm
• Linearity: >2.0 AU at 274 nm
• Maximum data rate:
  • 50 Hz via LAN
  • 20 Hz via analog output

Flow Cells

• Flow cells sold separately
• Stainless-steel and bio-inert options available
• Suitable for analytical and preparative chromatography
• Flow rates from 10 μL/min to 10 L/min

Communication and Control

• LAN communication
• Analog input/output
• Mobile Control software
• Event control
• Terminal protocol

Inputs

• Error (IN)
• Start (IN)
• Autozero
• 0–10 V Analog (IN)

Outputs

• Events 1–3
• +5 V
• 24 V Valve

Analog Output

• 1 × 0–5 V scalable
• 20-bit resolution
• Adjustable offset

Programming Functions

• Timed wavelength programming
• Event programming
• Fraction valve control
• Wake-up functions
• Up to 9 programs
• Up to 50 program lines

GLP Functions

• Lamp recognition
• Operating hours tracking
• Lamp operating hours
• Lamp ignition counter
• Detailed GLP reports

Safety and Maintenance

• Integrated leak sensor
• Easy-access flow cell compartment
• Front-access maintenance
• Minimal downtime for service operations

Environmental Conditions

• Operating temperature: 4–40 °C
• Humidity: <90% non-condensing

Power and Dimensions

• Power supply: 100–240 V, 50–60 Hz
• Power consumption: 65 W
• Dimensions (W × H × D): 361 × 158 × 523 mm
• Weight: 5.9 kg

Applications

• Routine HPLC analysis
• Fast LC methods
• Pharmaceutical quality control
• Food and beverage analysis
• Environmental testing
• Chemical analysis
• Preparative liquid chromatography
• Academic and research laboratories