Thermo Scientific Dionex ICS-Series VWD Variable Wavelength Detector P/N 070220
**This instrument was tested as far as we could. Unit is able to connect and communicate with software. Buyer can expect the same unit pictured and 30-day warranty. Does NOT include software. See photos for details.
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The Thermo Scientific Dionex ICS Series Variable Wavelength Detector (Dionex VWD) is a high-quality instrument designed for IC analysis applications requiring a UV-Vis detector and for LC analysis applications requiring an inert (PEEK) flow path. The Dionex VWD can be used with the following Thermo Scientific Dionex systems: the ICS-5000 (analytical systems only), ICS-2100, ICS-1600, ICS-1100, and ICS-900 (as well as some legacy systems). The Dionex VWD can be used in numerous laboratory environments for routine analysis, as well as for sophisticated research tasks.
Two versions of the Dionex VWD are available: a single channel version.
(P/N 070220) and a four-channel version (P/N 070221).
The detector is a dual-beam, variable-wavelength photometer with one measurement and one internal reference beam.
Two light sources, a deuterium lamp for ultraviolet detection and a tungsten lamp for visible and near-infrared wavelength detection, provide a wavelength detection range from 190 to 900 nm.
The four-channel detector measures at up to four wavelengths, by indexing between wavelengths several times per
The wavelength accuracy can be verified via the built-in holmium oxide filter.
The detector is controlled with a PC (personal PC) running Microsoft Windows Vista or Windows XP and either the Thermo Scientific Dionex Chrome Leon 7 Chromatography Data System or Chrome Leon 6.8 Chromatography Data System. Chrome Leon 7 and Chrome Leon 6.8 also provide data acquisition and data processing functions.
NOTE Thermo Scientific Dionex Chrome Leon Xpress software can provide real-time control and monitoring of the detector but does not include data management capabilities.
Manufacturer's Specifications:
Optical System Double-beam forward optics design (monochromator)
Dual-wavelength UV-VIS detector
Light Sources Deuterium lamp (for ultraviolet wavelength detection)
Tungsten lamp (for visible wavelength detection
Wavelength Range 190 to 900 nm
Wavelength
Accuracy 1 nm (over detector lifetime)
Wavelength
Repeatability 0.1 nm
Noise (single wavelength) < 3.5 AU (typical < 2.5 AU) under the following conditions:
Dry (dummy) flow cell, 254 nm, 1 second time constant, deuterium lamp on only, 60 minutes or less of warm-up time
< 5.0 AU (typical) under the following conditions:
Dry (dummy) flow cell, 520 nm, 1 second time constant, tungsten lamp on only, 60 minutes or less of warm-up time
< 7.5 AU (typical) under the following conditions:
Wet standard cell, 520 nm, flowing methanol at 1.0 mL/min, 1 second time constant, tungsten lamp on only, 60 minutes or less of warm-up time
Noise (dual wavelength< 25 AU (typical < 10 AU) under the following conditions:
Dry (dummy) flow cell, 254 and 280 nm, 2 second times constant,
2 Hz data collection rate, deuterium lamp on only, 60 minutes or less of warm-up time
< 30 AU (typical < 10 AU) under the following conditions:
Dry (dummy) flow cell, 450 and 520 nm, 2 second times constant, 2 Hz data collection rate, tungsten lamp on only, 60 minutes or less of warm-up time
< 50 AU (typical < 10 AU) under the following conditions:
Wet standard flow cell, 450 and 520 nm, flowing methanol at 1.0 mL/min, 2 second time constant, 2 Hz data collection rate, tungsten lamp on only, 60 minutes or less of warm-up time
Drift<1 x 10-4 AU/hour under the following conditions:
Dry (dummy) flow cell, 254 nm, deuterium lamp on only, 60 minutes or less of warm-up time, constant ambient conditions (Temperature, humidity)
<1 x 10-4 AU/hour under the following conditions:
Dry (dummy) flow cell, 520 nm, tungsten lamp on only, 60 minutes or less of warm-up time, constant ambient conditions (Temperature, humidity
Wavelength
Calibration Internal calibration with zero order and D-alpha line of the deuterium lamp
Wavelength
Verification Internal verification with holmium oxide filter
Data Collection
Rate (single wavelength) Adjustable, up to 10 Hz (single-channel Dionex VWD) or 100 Hz (Four-channel Dionex VWD)
Data Collection
Rate (multiple wavelength) Adjustable, up to 5 Hz, depending on the number of wavelengths.
(2 to 4) and the distance between the wavelengths (in nm)
Optical Bandwidth 6 nm at 254 nm
Identification
System Storage of identification and status information, including the lamp type, serial number, number of lamps starts, lamp age, and lamp intensity
Digital I/O
Inputs Four digital inputs
Outputs Four digital outputs
Manual
Additional Prep Fees May Apply
