CAS 140CT Array Spectrometer

The CAS 140CT, already in its third generation, is the most successful array spectrometer from Instrument Systems worldwide. These instruments combine high accuracy with an opto-mechanically robust design and simple operation. The range of applications is correspondingly wide, from round the clock operation in manufacturing to use as a reference instrument in calibration laboratories.

The centrepiece of the CAS 140CT is the newly developed Crossed-Czerny-Turner spectrograph incorporating a high end back illuminated CCD detector. The design effectively reduces stray light, which significantly improves dynamic range and measurement accuracy.

The CAS 140CT is the only array spectrometer to include an optical density filter wheel, extending the measurable intensity range over four orders of magnitude, so that very weak and very strong light sources can both be acquired fully automatically.