Introduction
The document provides an overview of StellarNet's BLACK-Comet Concave Grating Spectrometers designed for UV-VIS and NIR applications. These spectrometers are noted for their compact, rugged design and research-grade performance, suitable for various environments including field, lab, and factory settings.

Specifications
The BLACK-Comet spectrometers are available in two models for UV-VIS (190-850nm or 280-900nm) and two Super Range models (200-1080nm or 220-1100nm). They feature a 40mm diameter concave grating with aberration correction, which enhances spectral imaging by reducing common issues like comma and astigmatism. The spectrometers have a dynamic range of 2000:1 with 6 decades, an optical resolution of less than 1nm for a 25um slit, and a detector type of 2048 pixel CCD.

Design and Features
The spectrometers are housed in a small metal enclosure measuring 69 x 100 x 150 mm and consume 100 mA at 5 VDC. They include a USB-2 interface for high-speed data transfer to a PC. The optical input uses a standard SMA-905 connector with single strand fiber optic cable options. An integrated multi-band filter prevents optical aliasing, and the spectrograph design eliminates mirrors to minimize stray light.

Software and Compatibility
The SpectraWiz software is included for measuring various spectral properties such as emissions, reflectance, and fluorescence. The spectrometers are compatible with operating systems including Windows 98, Me, 2000, XP, and Vista. Additional free programs are available for LabView, VC, VBA, and Delphi.

Applications
The document highlights several applications of the spectrometers, including measuring the UV absorbance spectrum of riboflavin, halogen lamp irradiance spectrum, emission spectra of Hg+Argon gas, reflectance spectrum of blue paper, and blue-LED induced fluorescence.

Conclusion
StellarNet's BLACK-Comet spectrometers offer a robust and versatile solution for spectrometry needs, combining advanced optical technology with user-friendly software and a compact design.