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AZURA® VWD 2.1L Variable Wavelength Detector, fiber optics version

AZURA® VWD 2.1L Variable Wavelength Detector, fiber optics version

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without Test and Flow Cell, without Fiber Optic Cables, 190-900 nm

The AZURA VWD 2.1L is a versatile variable wavelength detector designed to adapt seamlessly to your needs.

In combination with a classic KNAUER flow cell, it supports analytical HPLC by detecting up to four compound-specific wavelengths across 190–900 nm at data rates of up to 5 Hz (for four UV channels) or 100 Hz (for one channel).

When equipped with KNAUER’s patented CombiLight flow cell, the VWD 2.1L goes even further—simultaneously monitoring conductivity and eluent temperature alongside up to four UV/VIS channels. To complete FPLC systems, a pH glass electrode can be connected for real-time pH monitoring.

Thanks to its flexible design, the VWD 2.1L can be easily converted between flow cell and fiber-optics version. One detector, multiple possibilities - stay flexible and ready for any project that comes your way.

  • Detector Type
  • Detector Type
  • Detector Type
  • Detection Channels
  • Wavelength Range
  • Spectral Bandwidth
  • Wavelength Accuracy
  • Wavelength Precision
  • Light Source
  • Baseline Noise Level (Test Cell, 254 nm, ASTM E1657-98)
  • Drift (254 nm, ASTM E1657-98)
  • Linearity (274 nm, ASTM E1657-98)
  • Max. Data Rate
  • Max. Data Rate
  • Time Constants
  • Integration Time
  • Wavelength Verification
  • Leak Sensor
  • Leak Sensor
  • Flow Cell
  • Flow Cell
  • GLP Report
  • GLP Report
  • GLP Report
  • Maintenance
  • Display
  • pH Measurement Range
  • pH Measurement Accuracy

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Internal Reference: ADB74

Technical Data

General
Detector Type Variable single wavelength UV detector, Conductivity monitor, pH Monitor
Detection Channels 4x UV/VIS,1x pH
Wavelength Range 190-900 nm
Light Source High brightness deuterium (D₂) lamp and halogen lamp with integrated GLP chip
Flow Cell Not included, Fiber optic cables are not included
Display Mobile Control (optional)
pH Measurement Range 0-14
Specifications
Wavelength Accuracy ± 1.5 nm (verification with integrated holmium oxide filter)
Wavelength Precision 0.4 nm (ASTM E275-93)
pH Measurement Accuracy ± 0.1 (pH 2-12)
Features
Wavelength Verification Internal holmium filter
Leak Sensor Yes, Adjustable sensitivity
GLP Report Lamp recognition, Operating hours, Light source operating hours
Maintenance Frontally accessible deuterium and halogen lamp, as well as flow cell
Specification - Detection
Spectral Bandwidth 6 nm at Hα line (FWHM)
Baseline Noise Level (Test Cell, 254 nm, ASTM E1657-98) ± 11 µAU
Drift (254 nm, ASTM E1657-98) 270 µAU/h
Linearity (274 nm, ASTM E1657-98) > 2.5 AU
Max. Data Rate 100 Hz (LAN, 1 UV/VIS channel), 5 Hz (LAN, 4 UV/VIS channels with Dl=100 nm)
Time Constants 0.01 / 0.02 / 0.05 / 0.1 / 0.2 / 0.5 / 1.0 / 2.0 / 5.0 / 10.0 s
Integration Time Automatic
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