 ü Speed ü Resolution ü Sensitivity ü High Signal to Noise ü Wide Spectral Range |
Diode array based spectrometers are able to accurately acquire measurements of moving samples. It is critical that the instrument used is able to measure changes in physical and chemical properties of the sample, and not introduce any errors due to slow data acquisition. Most scanning devices take 250 milliseconds or more to acquire a full spectrum. Compare this to one millisecond for a diode array. The time it takes a scanning device to get one spectrum, we get 250 spectra. This results in ~16 X improvement in signal to noise (square root of 256). When looking at small changes, this could be the difference in being able to make a successful measurement. Near infrared diode arrays are available in many configurations. The analyzer featured here has 512 element, and spectral response from 1200 nm to 2000nm. 
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Product Specifications | Spectrometer | Optics | f/2 or f/3 | | Detector Options and Resolution | Type | InGaAs 2.0
T.E. Cooled | Wavelength Range | 1200nm to 2000nm | | Number of elements | 256 | 512 | Resolution (nm/pixel) | 3.1 | 1.56 | | Data Acquisition | Electronics | 18 Bit A/D, 330 Khz | Read out speed | 0.7 ms per spectrum for 256 element array | | Probe Head | Working Distance | Up to 25 mm from window | Sensing Area | 32 mm | Light Source | Dual Tungsten Halogen Lamps, 5.4 watts each | Lifetime of Lamps | ~9,000.00 hours each | | Communications | Protocol | USB 2.0, 802.11 G Wireless Ethernet | | Battery | Type | Li-Ion | Life | ~3.5 hrs. | Changer | Built in | | Auto Calibration | Wavelength Reference | Mercury-Argon line source | White Reference | Spectralon Disk | | USP <1119> Specifications (Sensor meets or exceeds the following) | Baseline Noise | <0.3 X 10-3 for high light flux <1 X 10-3 for low light flux | Photometric Accuracy | +/- 1% for all levels | Wavelength Accuracy NIST SRM 1920 or equivalent | +/- 1nm | Physical | Dimensions | 14.95"L X 7.90"W X 6.75"H 379.731. mm X 200.66W mm X 171.45H mm | Weight | 19.19 Ibs, 8.7 Kg | Housing | Nema 4X., Class I,Div 11, EP and ATEX available | | Documentation | I/Q and O/Q documentation Included | | Software BlendSpekTM PharmaSpekTM Spec32TM | | Warranty and Support | Warranty | 1 year | Extended Warranty | Available | Support | Several support packages available | Telephone | CDI Pharma Help Desk | |
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