NIR256 Spectrometer

NIR256 Temp-regulated NIR Spectrometers

The NIR256-2.1 and NIR256-2.5 Near-infrared Spectrometers are designed for applications that require sensitivity in the near-infrared region such as tunable laser wavelength characterization and general NIR spectroscopy.

Available for $23099, the NIR256-2.1 Spectrometer features a temperature-regulated 256-element InGaAs array detector and is effective in the 0.9-2.1µm wavelength range or 1.2-2.1 µm range, depending on the grating selected.

The NIR256-2.5 extends farther into the NIR, acquiring spectra up to 2.5 µm. The NIR256-2.5 is available for $25405.

Applications

Sugar analysis

Moisture analysis

Pulpwood QC

Alcohol analysis in brewing

Nitrogen detection in soil

Fat, oil and lipid determination

NIR256-2.1 Spectrometer: Spectra to 2.1 µm

The NIR256 uses a 256-element InGaAs linear-array detector. With the NIR256 you have two grating options. With Grating N1, you have a 1200-2100 nm wavelength range. Grating N2 provides a 900-2100 nm wavelength range. The NR256-2.1 acquires data as fast as 10 milliseconds.

NIR256-2.5 Spectrometer: Spectra to 2.5 µm

The NIR256-2.5 Extended-range Spectrometer extends farther into the NIR, acquiring spectra up to 2.5 um. The NIR256-2.5 features a temperature-regulated InGaAs detector array, which is internally cooled for optimum signal-to-noise and sensitivity. The NR256-2.5 acquires data as fast as 10 milliseconds.

"Cool Design"

Each InGaAs detector has onboard thermoelectric cooling. A thermistor monitors the array's temperature and a thermoelectric device can cool the array to 30 °C below ambient, keeping the array stable to within +/-0.1 °C. You can set and monitor the detector's temperature via software.

Integrated Design

A 16-bit A/D converter is mounted with the spectrometer in the same housing. A 5 VDC wall transformer (included) is required. When an NIR256 Spectrometer inerfaces to a PC via the USB port, you have access to the spectrometer's EEPROM, where wavelength calibration coefficients and other information unique to your spectrometer is stored. Interface via an RS-232 serial port interface is also possible.

Convenient Calibration

To maintain the quality of your spectrometer's wavelength calibration, we recommend our drift-free, light sources specialized for spectrometer wavelength calibration. Click here for details.

Specifications

Specification	NIR 256-2.1	NIR 256-2.5
Physical
Dimensions:	153.4 mm x 105.2 mm x 76.2 mm	153.4 mm x 105.2 mm x 76.2 mm
Weight:	980 grams	980 grams
Detector
Detector:	Hamamatsu G9206-256; InGaAs linear array	Hamamatsu G9208-256; InGaAs linear array
Detector range:	900-2100 nm	900-2550 nm
Pixels:	256 pixels*	256 pixels*
Pixel size:	50 μm x 250 μm	25 μm x 250 μm
Pixel well depth:	188 Me- electrons	188 Me- electrons
Defective pixels:	2%	5%
Optical Bench
Design:	f/4, Symmetrical crossed Czerny-Turner	f/4, Symmetrical crossed Czerny-Turner
Focal length:	40 mm input	40 mm input
Entrance aperture:	10, 25, 50, 100 or 200 µm wide slits or fiber (no slit)	10, 25, 50, 100 or 200 µm wide slits or fiber (no slit)
Grating options:	2 grating options (N1 or N2 Grating)	1 grating option (N2 Grating)
HC-1 grating option:	No	No
Detector collection lens option:	No	No
OFLV filter options:	No	No
Other bench filter options:	No	No
Collimating and focusing mirrors:	Standard	Standard
UV enhanced window:	No	No
Fiber optic connector:	SMA 905 to 0.22 numerical aperture single-strand optical fiber	SMA 905 to 0.22 numerical aperture single-strand optical fiber
Spectroscopic
Wavelength range:	900-2100 nm with Grating N2; 1200-2100 nm with Grating N1	900-2500 nm with Grating N2
Optical resolution:	~12.0 nm FWHM	~7.5-25.0 nm FWHM
Signal-to-noise ratio:	4000:1 (at full signal)	4000:1 (at full signal)
A/D resolution:	16 bit	16 bit
Dark noise:	12 RMS counts	12 RMS counts
Dynamic range:	5 x 10^6 (system); 5000:1 for a single acquisition	5 x 10^6 (system); 5000:1 for a single acquisition
Integration time:	1 millisecond to 1 second	1 millisecond to 30 milliseconds
Corrected linearity:	>99.8%	>99.8%
Electronics
Power consumption:	3 A @ 5 VDC	2 A @ 5 VDC
Data transfer speed:	Full scans to memory every 10 ms with USB port	Full scans to memory every 10 ms with USB port
Inputs/Outputs:	No	No
Analog channels:	No	No
Auto nulling:	No	No
Breakout box compatibility:	No	No
Trigger modes:	3 modes	3 modes
Strobe functions:	Yes	Yes
Gated delay feature:	No	No
Connector:	15-pin connector	15-pin connector
Computer
Operating systems:	Windows 98/Me/2000/XP, Mac OS X and Linux with USB port; Any 32-bit Windows OS with serial port	Windows 98/Me/2000/XP, Mac OS X and Linux with USB port; Any 32-bit Windows OS with serial port
Computer interfaces:	USB 2.0 @ 12 Mbps; RS-232 (2-wire) @ 115.2 K baud	USB 2.0 @ 12 Mbps; RS-232 (2-wire) @ 115.2 K baud
Peripheral interfaces:	I2C inter-integrated circuit; SPI (3-wire)	I2C inter-integrated circuit; SPI (3-wire)
Pricing
Retail	$23099	$25405

Software Interface