Interspec - Model 402-X -FTIR/FT-NIR Module
The INTERSPEC series FTIR modules are stable, rugged units requiring the minimum of external utilities. For easy access, those system components which have a finite lifetime (i.e. laser, and radiation source) are located at the front side of the module. A yellow LED indicator indicates, when the scanning is turned on. Interspec 402-X series modular instruments may be used as an heart of a more complex spectroscopic system. Sampling handling and the whole spectroscopic system is defined by the customer.
Interferometer Performance
The interferometer compartment under cover is 250 x 250 mm wide and 140 mm high. The Interspec 402-X series of instruments employ a sealed and desiccated interferometer, ensuring high spectral integrity with low levels of water vapour within the interferometer. We also offer a version (402-XZ) that employs a ZnSe moisture insensitive optics to be impervious to water vapour and can be used to advantage in higher humidity environment’s. Near infrared version (402-XN) employs a fused silica optics and is insensitive to any influence of water vapour. Resolution in the infrared is available factory default from 1 cm-1 (option 0.5 cm-1). The overall wavelength range is 7000 to 400cm-1 (IR) or 14000 to 3000 cm-1 (NIR).
Sample holder and Detector Unit Options
Two types of IR or NIR detector units are available: a) with collimating off-axis metal mirrors and b) with off-axis parabolic and off-axis ellpsoidal mirrors and sample slide mount. In case of IR spectral region a selected high sensitivity DLATGS pyroelectric detector is available. In case of NIR spectral region two types of photodiodes are available: Si and InGaAs. The InGaAs detector is with spectral range either from 0.7 to 1.7 µm or from 1.2 to 2.6 µm.
Sofware option
DLL for running the interferometer and getting the data (in case of our data acquisition system) can be provided with each module.
Interspec for Windows software is available as an option. The software is supplied on CD and provided with each system shipped. The software includes features for all standard analytical requirements including manipulation of spectral data, instrument control, plot with preview on the screen plus many others.
Also included are several facilities for analytical modelling of interferogrammes or spectra, with smoothing, and baseline correction, interactive editing and data manipulation . Also spectral subtraction, mixture subtraction, smoothing derivatives, plot with preview etc. Data import and export is possible in ASCII, Excel or JCAMP formats.
- Wavelength range, IR 7000 to 400 cm-1
- Wavelength range, NIR 14000 to 3000 cm-1
- determined by detector: 14000-5800 or 9000- 3850 cm-1
- Resolution 1 cm-1 (0.5 cm-1 – option)
- Interferometer Pendulum type with flat mirrors
- Output beam diameter 38 mm
- Optical axis height 87 mm
- Aperture ratio f 3.2
- Beamsplitter, standard IR Multicoated KBr
- Beamsplitter, option IR ZnSe
- Beamsplitter, option NIR Fused Silica
- Frequency reference VCSEL laser
- IR source ceramic
- NIR source Quartz-halogen lamp
- Dessiccant possibility Yes
- Interface USB
- Data acquisition system 18 bit
- Power 12 VDC, 30W
- Dimensions W35xD25xH16 cm
- Weight 12 kg
- Temp. environment 15 – 28 0C
- Humidity environment Best below 65%