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Spectrometers HR4000 Spectrometer User-Configured for Flexibility HR4000 Inside the HR4000 Spectrometer is a 3648-element CCD-array Toshiba detector that enables optical resolution as precise as 0.02 nm (FWHM). Responsive from 200-1100 nm, the HR4000 can be customized for your setup needs through a choice of gratings, slits and other optical bench options. The HR4000 gives you the freedom to set integration time and features an electronic shutter that helps minimize saturation – even with 3.8 ms integration. The HR4000 interfaces easily with your computer or PLC through USB 2.0 or RS-232 ports. And, with its 10 user-programmable digital inputs/outputs, the HR4000 offers unparalleled connectivity with external equipment. Features - Onboard microcontroller and electronic shutter - 0.02 nm optical resolution (FWHM) possible - Choice of configurations and accessories Technical Tip The dynamic range of a system is the full scale signal divided by the minimum resolvable signal. For our spectrometers, the minimum resolvable signal is the standard deviation of the dark signal. A common misunderstanding is to interchange dynamic range and A/D resolution. However, a dynamic range measurement includes the system’s minimum noise level (e.g., detector readout noise and electronic noise). It’s most applicable to low light level applications because it defines minimum detectable signal. Physical Dimensions: 148.6 mm x 104.8 mm x 45.1 mm Weight: 570 g Detector Detector: Toshiba TCD1304AP linear CCD array Detector range: 200-1100 nm Pixels: 3648 pixels Pixel size: 8 μm x 200 μm Pixel well depth: ~100,000 electrons Sensitivity: 130 photons/count at 400 nm; 60 photons/count at 600 nm Optical Bench Design: f/4, Symmetrical crossed Czerny-Turner Focal length: 101.6 mm input and output Entrance aperture: 5, 10, 25, 50, 100 or 200 µm wide slits or fiber (no slit) Grating options: 14 different gratings, UV through Shortwave NIR HC-1 grating option: Provides 200-1050 nm range (best efficiency) Detector collection Yes, L4 lens option: OFLV filter options: OFLV-200-1100 Other bench filter Longpass OF-1 filters options: Collimating and focusing Standard or SAG+UPG-HR mirrors: UV enhanced window: Yes, UV4 quartz window Fiber optic connector: SMA 905 to 0.22 numerical aperture single-strand optical fiber Spectroscopic Wavelength range: Grating dependent Optical resolution: ~0.02-8.4 nm FWHM Signal-to-noise ratio: 300:1 (at full signal) A/D resolution: 14 bit Dark noise: 12 RMS counts Dynamic range: 2 x 10 8 (system); 1300:1 for a single acquisition Integration time: 3.8 ms-10 seconds Stray light:
HR User-Configured Spectrometers Bench Accessories for HR2000+/HR4000 Spectrometers The magic behind our HR2000+ and HR4000 miniature spectrometers is the options you can select to configure your optical bench to perfectly suit your unique application needs. By consulting with an Ocean Optics Applications Scientist, you can choose the optimum combination of aperture size, detector accessories, filters, gratings and more. Product Section SMA 905 Connector Our entrance slits are rectangular apertures that are 1 mm tall and come in varying widths from 5 µm to 200 µm. Smaller slit sizes achieve the best optical resolution. Fixed Entrance Slits Our entrance slits are rectangular apertures that are 1 mm tall and come in varying widths from 5 µm to 200 µm. Smaller slit sizes achieve the best optical resolution. Slit Description HR2000+ Pixel Resolution SLIT-5 5-µm wide x 1-mm high ~1.5 pixels ~2.0 pixels SLIT-10 10-µm wide x 1-mm high ~2.0 pixels ~3.7 pixels SLIT-25 25-µm wide x 1-mm high ~2.5 pixels ~4.4 pixels SLIT-50 50-µm wide x 1-mm high ~4.2 pixels ~7.4 pixels SLIT-100 100-µm wide x 1-mm high ~8.0 pixels ~14.0 pixels SLIT-200 200-µm wide x 1-mm high ~15.3 pixels ~26.8 pixels HR4000 Pixel Resolution Longpass Absorbing Filter Whether you select a Longpass Absorbing or Blocking Filter, each has a transmission band and a blocking band to restrict radiation to a certain wavelength region. This helps eliminate second- and third-order effects. Filters are installed permanently. OF1-WG305 OF1-GG375 OF1-GG395 OF1-GG475 OF1-OG515 OF1-OG550 OF1-OG590 Item Description Longpass filter; transmits light >305 nm Longpass filter; transmits light >375 nm Longpass filter, installed, transmits light >395 nm Longpass filter; transmits light >475 nm Longpass filter; transmits light >515 nm Longpass filter; transmits light >550 nm Longpass filter: transmits light >590 nm Collimating and Focusing Mirrors You can replace our standard aluminum-coated reflective mirrors with our UV-absorbing SAG+ Mirrors. These mirrors increase reflectance in the VIS-NIR range while increasing your spectrometer’s sensitivity. They also absorb nearly all UV light – reducing the effects of excitation scattering in fluorescence measurements. They have excellent reflectivity (more than 95% across the VIS-NIR). Item Code: SAG+UPG-HR Grating and Wavelength Range With a choice of 14 gratings, you can easily customize the spectral range and most efficient region of your HR Series Spectrometer. Our gratings are permanently fixed in place at the time of manufacture and are available in both ruled and holographic versions. See page 36 for grating options and efficiency curves and consult an Ocean Optics Applications Scientist for details. www.oceanoptics.com Tel: +1 727-733-2447 33
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