StellarNet Inc. - SA2000 Miniature Spectrometers

The ISA2000 spectrometers are miniature fiber optic instruments for UV, VIS, and NIR measurements through an ISA plug-in PC card interface.  Each unit contains a high speed parallel digitizer interface with a 4K word spectral scan memory to provide instantaneous spectral data from the highly sensitive CCD or Photo Diode Array detectors.  Various models provide a choice of grating range and slit resolutions.  A single strand fiber or probe assembly is input via a standard SMA-905 connector.  The ISA2000 spectrometers are ideal for OEM and application integrators looking to perform process, and lab applications.

Standard Models

ISA2000 Model	Wavelength Range (nm)	Grating  g / mm	Slit-200 nm res.	Slit-100 nm res.	Slit-50 nm res.	Slit-25 nm res.	Slit-10 nm res.
UV	200-600	1200	3.0	1.6	0.8	0.5	0.4
UV2	200-400	2400	1.5	0.8	0.4	0.25	0.20
UV3	220-350	3600	1.0	0.5	0.25	0.16	0.13
VIS	350-1150	600	6.0	3.2	1.6	1.00	0.80
NIR	500-1200	600	6.0	3.2	1.6	1.00	0.80
NIR2	600-1000	1200	3.0	1.6	0.8	0.5	0.4
NIR2b	785-1200	1200	3.0	1.6	0.8	0.5	0.4
NIR3	550-840	1800	2.2	1.2	0.6	0.35	0.28
NIR3b	680-935	1800	2.2	1.2	0.6	0.35	0.28
NIR4	500-700	2400	1.5	0.8	0.4	0.25	0.20
NIR4b	600-800	24000	1.5	0.8	0.4	0.25	0.20
XNIR2	1200-1600	1200	single mode fiber only				0.50

Up to 8 units can be attached on a single cable in any combination of optical configurations.  All units can request scans at the same time.  Each unit has its own AD converter and 2050 wavelength scan memory.  This allows development of "synoptic" multi-channel applications. Detectors are soldered onto small circuit cards which are then mounted to the spectrographs using locking hardware (see pictures below).  This reduces the risk of alignment problems caused by vibration in shipping or field portable operations and eliminates thermal instability for the detector mount.

Dynamic Range:	2000:1 with 8 decades	Dimensions:	44 x 94 x 150 mm
Optical Resolution:	see model table - to 0.1 nm	Power Consumption:	100 mA @ 5 VDC
Detector Type:	2048 pixel CCD, PDA opt.	Interface:	Parallel and USB-2
Detector Range:	190-1600 nm (0.190-1.600 um)	Data Transfer Speed:	3x / 40x faster than USB-1
Pixel Size:	14 x 200 um	Detector Integration:	2 ms / 1 ms [12 / 14-bit] to 65 s
Diffraction Gratings:	Holographic & ruled	Slit Size Options:	5, 10, 25, 50, 100, 200 um
Grating g/mm:	300, 600, 1200, 1800, 2400	Stray Light:	<0.1% at 435 nm; <0.05% at 600 nm
Spectrograph:	f/4, SymX-Czerny-Turner	Fiber Optic Input:	SMA905 0.22 na single fiber
Order Sorting Filter:	Integrated & High Pass	Operating Systems:	Win 9x/NT/00/XP
Signal to Noise:	1000:1 CCD, PDA 2000:1	Software Included:	SpectraWiz program & apps
Digitizer:	12-bit, 14-bit optional	Also Free Programs For:	LabView / VC / VBA / Delphi

The SpectraWiz software is included to accurately measure wavelength emissions, reflectance, transmission, absorption, concentrations, and absolute intensities.