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Tunable Light Sources (TLS)

Test Purpose:
Sciencetech’s software, Sci-Spec, controls all components of the system. In the standard configuration, it controls the power supply of the light source, shutter, filter wheel, and monochromator. As an option, the user can add computer control on the input and output slits, and/or control of the iris. In the standard configuration, the output beam can be collimated or focused. Coupling with different devices is available as an option, such as coupling with a sample chamber, fiber, or fiber bundle.


MODELS TLS-72-X300 TLS-72-Q250 TLS-55-X300 TLS-55-Q250
Lamp Type   Xe 300 W QTH 250 W Xe 300 W QTH 250 W
Monochromator Type   9072S (1/8 meter) 9055 (1/4 meter)
Functional Spectral Range 300-1800 nm
Optical resolution 0.5 nm @ 300-450 nm 0.2 nm @ 300-450 nm
1 nm @ 450-2500 nm 0.4 nm @ 450-2500 nm
Filter wheel with filter set        Computer-controlled 6-position filter wheel
Shutter Optional computer-controlled shutter and exposure control
Beam output Collimated with 25 mm [1”] diameter optics1
Wavelength Repeatability 0.1 nm
Wavelength Accuracy 0.3 nm 0.2 nm
Intensity Control Source intensity adjustable.   |   Optional manual iris
Gratings 2 plane ruled gratings 2 plane ruled gratings
(30x30 mm): (50x50 mm):
1200 l/mm@300nm 1200 l/mm@300nm
600 l/mm@1000nm 600 l/mm@1000nm
Bandpass Two manual bilaterally-adjustable slits with vertical curtain attenuators
Optical Height 215 mm [8.5”], adjustable +/- 5 mm
Power supply Touchscreen, Constant Current   
Software Sci-Spec  (Labview examples, DotNet, Active X also available)
Computer  Interface USB—monochromator and filter wheel ,                        RS232 Power Supply
Dimensions (mm) 822 ×418 × 332 921 × 545 × 332
Weight 30 kg 37 kg
CE Certification IEC 61010-1:2010  Safety Requirements for electrical equipment for measurement, control and laboratory use—Part 1
IEC 61326-1:2012 Electrical equipment for measurement, control and laboratory use—EMC requirements—Part 1

Each base model comes with standard features:

-  Sciencetech Light Source Xe or QTH

- 1” optics are used to collimate light output1

- Sciencetech Monochromator, three-grating turret with two gratings

- Adjustable slits for optical bandpass control

- Motorized filter wheel with 4 long pass filters installed.

- Adjustable computer controlled power supply.

- SciSpec software for controlling the monochromator and filter wheel.

- Reinforced optical base plate.