Description
- The CHEMUSB4-UV-VIS is the perfect marriage of our USB-interface spectrometer technology and modular accessories. The system consists of a USB4000 Spectrometer with a combination deuterium tungsten halogen light source and 1-cm cuvette holder and high-speed electronics and operating software.
- The CHEMUSB4-UV-VIS covers the 200-850 nm range, has optical resolution of 1.0 nm (FWHM) and captures 3648 wavelengths in <1 second.
- Fully integrated, preconfigured system covers the 200-850 nm range at 1.0 nm (FWHM)
- Small-footprint system ideal for the laboratory and the classroom
- Direct-attach deuterium tungsten light source and sample holder
- 10 µs integration time
- USB 2.0 interface for fast, hassle-free spectrometer-to-PC connection.
- Serial port operation tips: When using the serial port, the USB4000 requires a single 5-volt power supply (not included). Also, SpectraSuite Spectroscopy Software does not support spectrometer operation via the serial port. However, using the included Serial Port Command Set, you can write your own software that makes serial port operation possible.
General spectrophotometer specifications
- Spectrometer dimensions: 89.1 mm x 63.3 mm x 34.4 mm
- Spectrometer weight: 190 g
- Light source dimensions: 198 x 105.1 x 40.6 mm
- Light source weight: 200 g
- Power consumption: 250 mA @ 5 VDC
- Data transfer speed: Full scans to memory every 4 ms with USB 2.0 port, 18 ms with USB 1.1 port
- Connector: 22-pin connector
- Computer interfaces: USB 2.0 @ 480 Mbps (USB1.1 compatible); RS-232 (2-wire) @ 115.2 K baud
- Operating systems: Windows 98/Me/2000/XP, Mac OS X and Linux with USB port; Any 32-bit Windows OS with serial port.
Detector Specifications
- Detector: Toshiba TCD1304AP Linear CCD array
- Detector range: 200-1100 nm (the CHEMUSB4-UV-VIS is preconfigured to cover the 200-850 nm range)
- Pixels: 3648 pixels
- Pixel size: 8 micrometer x 200 micrometer
- Pixel well depth: 100,000 electrons
- Signal-to-noise ratio: 300:1 (at full signal)
- A/D resolution: 16 bit
- Dark noise: 12 RMS counts
- Corrected linearity: >99.8%
- Sensitivity: 130 photons/count at 400 nm; 60 photons/count at 600 nm
- Fiber optic connector: SMA 905 to 0.22 numerical aperture single-strand optical fiber
- Optical resolution: 1.0 nm FWHM
- Integration time: 3 µs to 65 seconds
- Dynamic range: 2 x 108 (system), 1300:1 for a single acquisition
- Power consumption: 1.8 A @ 5 VDC; external power supply (included)
- Pathlength: 1 cm
- Cuvette shape: Square
Source Specifications
- Light source: Deuterium tungsten
- “Z” dimension: 15 mm
- Bulb life (hours): 800 deuterium; 2,000 tungsten
- Time to stabilized output: ~30 minutes
