M77781A
MS257
™ USB/RS232
MONOCHROMATOR AND SPECTROGRAPH
5
2 INTRODUCTION
The MS257 isn't just another monochromator. It is the heart of a completely automated spectral data
acquisition system. All you need is a PC and a detector system.
The MS257 is an F/3.9 instrument with a focal length of 257 mm for use as a monochromator, true flat
field spectrograph or imaging spectrograph. It incorporates the latest advances in optical design, high
speed wavelength drives, and total system automation.
The MS257 has been designed with a flat exit image plane and an oversized focusing mirror to serve as a
true flat field spectrograph. Adapter flanges are available for lnstaSpec
™ diode arrays and CCD
detectors, as well as detectors made by other manufacturers.
The imaging version of MS257 has special corrected optics (toroidal mirrors) which correct the final image
for astigmatism and enable point to point spectral imaging of the input source or sources. The optics have
been designed to work with CCD detectors which are used to record simultaneous spectra from multiple
sources.
Key Features:
1, 2, 3, or 4 grating turret with automatic grating switching
Rapid high torque motor drive
Rigid housing for optical stability with sealed seams for light tightness
2 detector ports with automatic detector switching
Motorized slits for automatic bandpass selection
Advanced optical design results in negligible stray light
Tilted focal plane for eliminating re-entrant spectra from detectors
Corrected optics for spectral imaging (version 77782)
Fine focus adjustment for diode arrays and CCDs
Internal shutter for dark scans
Automated auxiliary input port option
Separate electronics compartment for exceptional temperature stability
On board microprocessor for automated control
Complete computer control via USB or RS232
