Thermo Vision Colorado-MonoSpec 25 Monochromator

Some things never change, like the high quality of the TVC Jarrell-Ash Quarter Meter Ebert Monochromator, found in thousands of laboratories worldwide. This high performance, small monochromator remains as popular as ever, and its overall efficiency remains unmatched by any other small monochromator.

The use of two gratings, each blazed at different wavelengths, maximizes the performance of the instrument throughout the entire visible spectrum. The gratings are mounted on one assembly and are interchanged by rotation of an external control knob. To work in regions other than the visible, or if only one grating is needed, order the 82-415 model and choose one or two gratings to cover any desired region from 200 nm to 40 µm. There is a large selection of gratings to choose from.

Two bayonet-type slits are provided which can be easily removed and interchanged for other slits. This feature allows resolution or high throughput measurements, depending on the width of the slit used. An adjustable slit is also available.

The MonoSpec 25 features an Ebert optical design with the entrance and exit slits in a straight line configuration. This optical system provides high throughput with an aperture of f/3.5. An all-aluminum casting makes this a highly stabilized optical system.

There are numerous applications for which the MonoSpec 25 is ideal. Use it as a monochromatic illuminator for microscopes, photometers and other spectrometer systems. The MonoSpec 25 performs superbly as a spectrometer measuring absorption, transmission, emission, reflection, fluorescence and phosphorescence. Its versatility has made the MonoSpec 25 the standard monochromator for general use in physics, chemistry, biology and engineering laboratories.

Specifications
Focal Length:	250 mm
Aperture (f/number):	3.5
Resolution:	0.2 nm with 1200 g/mm grating
Reciprocal Linear Dispersion:	1.6 nm/mm with 1200 g/mm grating
Stray Light:	<0.2%

Popular Ruled Diffraction Gratings

Groves/mm	Blaze Wavelength	Useful Spectral Range	Reciprocal Linear Dispersion nm/mm
2360	240 nm	180 nm-450 nm	1.6
1180	300 nm	180 nm-550 nm	3.3
1180	500 nm	350 nm-1.0 µm	3.3
590	500 nm	300 nm-1.0 µm	6.6
590	1.0 µm	700 nm-1.8 µm	6.6
295	2.1 µm	1.8 µm-3.8 µm	13.2
147.5	4.0 µm	2.6 µm-6 µm	25.6
100	6.5 µm	4.5 µm-10.8 µm	37.8
50	10.0 µm	7.0 µm-21.0 µm	75.4
30	30.0 µm	21.0 µm-40.0 µm	128.0

MonoSpec 25 Systems & Accessories

82-410

MonoSpec 25 Ebert Monochromator 250 mm focal length, f/3.5, with 150 µ entrance and exit slits and two gratings, one 2360 g/mm, blazed at 300 nm and the other, 1180 g/mm, blazed at 500 nm. (Gratings have 64 mm X 64 mm ruled area.) Contains two digital wavelength indicators and manual sine drive.

82-415

MonoSpec 25 Ebert Monochromator 250 mm focal length, f/3.5, with 150 µ entrance and exit slits and one of the gratings listed below (except 985301017), one holder for two 67 x 67 x 6 mm gratings (11-043). Contains one digital wavelength indicator and manual sine drive.
Includes calibration for any grating ordered with the instrument.
Note: Other slits can be substituted for 150 µ at no charge. For substitution of 2360 g/mm grating, 985301017, add $150.00 to price of 82-415.

Accessories

11-043

Dual Grating Holder for holding two 67.5 x 67.5 x 6.4 mm gratings. Interchangeable with one supplied with instrument.

82-420(x)

Kit to Adapt 82-415 with second readout counter and coupling assembly.

15003010

Stepping Motor Drive Kit to convert MonoSpec 25 to a computer controlled scanning monochromator. Includes motor, optical limit switches and all necessary hardware. LambdaSCAN controller sold separately

00-4149

MonoSpec 25 Operator's Manual

Gratings

64 mm x 64 mm ruled area on a 67.5 mm x 67.5 mm x 6.4 mm thick glass blank
985301017	Ruled grating, 2360 g/mm, 240 nm blaze
985302015	Ruled grating, 1180 g/mm, 180 nm blaze
985302017	Ruled grating, 1180 g/mm, 240 nm blaze
985302018	Ruled grating, 1180 g/mm, 300 nm blaze
985302020	Ruled grating, 1180 g/mm, 400 nm blaze
985302022	Ruled grating, 1180 g/mm, 500 nm blaze
985302024	Ruled grating, 1180 g/mm, 600 nm blaze
985302026	Ruled grating, 1180 g/mm, 700 nm blaze
985302028	Ruled grating, 1180 g/mm, 800 nm blaze
985303017	Ruled grating, 590 g/mm, 240 nm blaze
985303018	Ruled grating, 590 g/mm, 300 nm blaze
985303020	Ruled grating, 590 g/mm, 400 nm blaze
985303022	Ruled grating, 590 g/mm, 500 nm blaze
985303024	Ruled grating, 590 g/mm, 600 nm blaze
985303027	Ruled grating, 590 g/mm, 750 nm blaze
985303030	Ruled grating, 590 g/mm, 1.0 µ blaze
985303031	Ruled grating, 590 g/mm, 1.2 µ blaze
985303032	Ruled grating, 590 g/mm, 1.3 µ blaze
985303034	Ruled grating, 590 g/mm, 1.6 µ blaze
985304016	Ruled grating, 295 g/mm, 200 nm blaze
985304018	Ruled grating, 295 g/mm, 300 nm blaze
985304020	Ruled grating, 295 g/mm, 400 nm blaze
985304022	Ruled grating, 295 g/mm, 500 nm blaze
985304024	Ruled grating, 295 g/mm, 600 nm blaze
985304027	Ruled grating, 295 g/mm, 750 nm blaze
985304030	Ruled grating, 295 g/mm, 1.0 µ blaze
985304032	Ruled grating, 295 g/mm, 1.3 µ blaze
985304033	Ruled grating, 295 g/mm, 1.5 µ blaze
985304034	Ruled grating, 295 g/mm, 1.6 µ blaze
985304036	Ruled grating, 295 g/mm, 2.1 µ blaze
985304037	Ruled grating, 295 g/mm, 2.6 µ blaze
985304818	Ruled grating, 147.5 g/mm, 300 nm blaze
985304822	Ruled grating, 147.5 g/mm, 500 nm blaze
985304839	Ruled grating, 147.5 g/mm, 2.6 µ blaze
985304840	Ruled grating, 147.5 g/mm, 4.0 µ blaze
985305424	Ruled grating, 100 g/mm, 600 nm blaze
985305444	Ruled grating, 100 g/mm, 6.0 µ blaze
985305445	Ruled grating, 100 g/mm, 6.5 µ blaze
985306950	Ruled grating, 50 g/mm, 10.0 µ blaze
985307457	Ruled grating, 40 g/mm, 22.5 µ blaze
985307958	Ruled grating, 30 g/mm, 30.0 µ blaze

Many additional options and accessories are available for the MonoSpec 25 models. Please contact the factory or your representative for more information.

Thermo Vision Colorado
2527 Foresight Circle
Grand Junction, CO 81505