TMS300 Monochromator

The TMS300 offers the same excellent optical performance as the TMc300, but includes the added advantage of internal motorised slits to permit the maintenance or selection of measurement bandwidth throughout the spectral range of use. Compatible with the full range of sources, detectors and accessories of the Bentham portfolio, the TMS300 monochromator provides supreme flexibility throughout the UV, visible and IR.

Key features include:


Configuration Czerny-Turner symmetrical
Focal length 300mm
Grating mount Triple grating turret
Number of gratings 1-3
Grating size 68 x 84 mm
Aperture ratio f/4.1 (at all grating angles)
Number of entrance/ exit ports 1/2 or 2/1
Mechanical resolution grating drive 0.000072°/ step
Slit type Internal motorised variable
Slit Width & Height 10µm-10mm (W) x 20mm (H)
Filter Size 25mm diameter
OPTICAL PERFORMANCE (quoted for 1200g/mm gratings)
Spectral Range Within range 200nm-50µm
Linear Dispersion 2.7nm/mm
Wavelength accuracy ± 0.2nm
Wavelength reproducibility ± 0.05nm
Resolution full/ reduced slit height 0.3/ 0.1nm
Stray light rejection at 2.5x FWHM 10^-5 (20nm from laser line 632.8nm)
Wavelength acquisition speed 1000nm/s
Computer interface USB
Software Control BenWin+/ SDK
Overall dimensions 328w x 375d x 263h
Optical height 178mm
Weight Approx. 15 kg
Power supply Mains input 110/220V 50/60Hz
Diffraction gratings See separate Gratings page
Order sorting filters See separate Order Sorting Filters page
Filter wheel 252-8 (8-position filter wheel, includes shutter)


Atms300 configurationBtms300 configuration

Dimensions (mm) - top view

top view

Dimensions (mm) - side view

side view