| | | | Variable Wavelength Detector |
| The UltiMate® 3000 Variable Wavelength Detector (VWD) is the detector of choice for routine chromatography applications. It offers high sensitivity, low noise and drift and a wavelength range of 190–900 nm. The VWD is available in two variants. The standard version with a 20 Hz data rate is economically affordable for laboratories on a limited budget. The rapid separation version offers a data rate of up to 100 Hz to perfectly detect even the narrowest peaks. Both detectors are designed to meet the demanding requirements of today’s laboratories. - Low noise (typically < ±2.5 µAU) and drift (< 0.1 mAU/h) guarantee high sensitivity
- Linear range of up to 2.5 AU allows for the analysis of wide range of analyte concentrations [more]
- Easily adaptable detector allows use with HPLC applications from nano- through to semi-preparative HPLC
- Data collection rates of up to 100 Hz allow detection of even the sharpest peaks
- Predictive performance technology continually monitors system performance and warns of impending errors such as lamp failure.
Performance Examples
| | | Variable Wavelength Detector Specifications | | Data collection rate, single wavelength | Adjustable, up to 100 Hz (VWD-3400RS) or 20 Hz (VWD-3100) | | Noise | Single wavelength: < ±3.5 µAU , multiple wavelength: < ±25 µAU at 254 nm, time constant 1 s (according to ASTM), dry analytical flow cell | | Drift | < 0.1 mAU/hr at 254 nm, dry analytical flow cell, only deuterium lamp turned on | | Linearity | < 5% RSD at 2.5 AU at 272 nm based on ASTM | | Light source | Deuterium lamp
Optional tungsten lamp for visible wavelengths | | Wavelength range | 190–900 nm
The tungsten lamp is recommended for wavelengths >600 nm. | | Multiple wavelengths (only VWD-3400RS) | Adjustable, up to max. 5 Hz, depending on the number of wavelengths
(2–4) and the distance between the wavelengths (nm) | | Wavelength accuracy | ±1 nm (over detector lifetime) | | Wavelength repeatability | ±0.1 nm | | Optical bandwidth | 6 nm at 254 nm | | I/O interfaces | Four digital inputs, four digital outputs | | Analog outputs | Two analog outputs available as an option via DAC plug-in module
Software selectable: absorbance, 20-bit resolution, 0–1V (full range) and 0–10 V (full range with adjustable mAU ranges). | | Safety features | Power-up diagnostics of optics, cooling fans, motors, and electronic leak sensor | | Power requirements | 85–260 V AC, 50/60 Hz, max. 150 W
Wide range (automatic voltage selection) | | Dimensions (h x w x d) | 16 × 42 × 51 cm (6.3 × 16.5 × 20 in.) | | Weight | 14 kg (31 lbs) |
| | Order Information | | VWD-3100 20 Hz Single Channel Variable Wavelength Detector Without Flowcell
| 5074.0005 | | VWD-3400RS 100 Hz Four Channel Variable Wavelength Detector Without Flowcell
| 5074.0010 | | Flow Cell for VWD-3x00, SST, 11 µL Volume, 10 mm Pathlength | 6074.0250 | | Flow Cell for VWD-3x00, PEEK, 11 µL Volume, 10 mm Pathlength | 6074.0200 | | Semi-micro Flow Cell for VWD-3x00, SST, 2.5 µL | 6074.0360 | | UZ-View Flow Cell Nano for VWD-3x00, 3 nL Volume | 6074.0270 | | UZ-View Flow Cell Cap for VWD-3x00, 45 nL Volume | 6074.0280 | | UZ-View Flow Cell Micro for VWD-3x00, 180 nL Volume | 6074.0290 | | Semi Preparative Flow Cell for VWD-3x00, PEEK, 0.7 µL Volume, 0.4 mm Pathlength | 6074.0320 | | D2-Lamp for VWD-3000 Series | 6074.1110 | | VIS-Lamp (Thungsten) for VWD-3000 Series | 6074.2000 | | Analog Output Board, VWD-3000 Series, Max. 2 Channels | 6074.0305 |
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|  |  | UltiMate LC and LC-MS Detectors | | Choose from a wide range of sensitive detectors. Operate even the MSQ™ Plus Mass Spectrometer, together with the other instruments in your system, from a single Chromeleon® control panel. |
| Modules | | | UltiMate ® 3000 LC modules achieve new levels of flexibility, performance, reliability, and ease of use. |
| LC and LC/MS Overview | Discover the UltiMate ® 3000 LCi series, and learn how LCi solutions can improve performance and productivity in your laboratory. |
| LCi Solutions |  | Find out how the UltiMate® 3000 LCi Series can provide you with LC solutions for your chromatographic challenges. |
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