Up to 2,200 nm with Cooled InGaAs Detector – 2.2 TEC Range

The 2.x-series extended InGaAs instruments feature 512 or 256 pixel detectors and are available in configurations allowing measurements up to 2000 and 2200 nm. Resolution can be as high as 4 nm on the 512 pixel version or 10 nm on the 256 pixel version. Integration times can reach as low as 10 microseconds. Four different gratings are possible.

A new feature of the NIR-series is the user-selectable gain setting mode: low-noise (LN) standard setting, which provides users with a higher signal to noise ratio and a longer integration time, or high sensitivity (HS) for measuring in low-light conditions. This setting can be easily modified in AvaSoft 8. Digital and analog IO ports enable external triggering and control of shuttered and pulsed light sources from the AvaLight series of illumination sources.

All instruments feature a twin stage thermo-electrical Peltier-cooled InGaAs detector, specifically designed for measuring in the NIR range. The USB2.0 interface enables connection to the computer. Data is transferred in 1.0 ms. All of the instruments are provided with a manual, AvaSoft-Basic, and USB/power cable.

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Technical Information

Spectrometer AvaSpec-NIR256-2.0TEC AvaSpec-NIR256-2.2TEC AvaSpec-NIR512-2.2TEC
Optical Bench TE-cooled Symmetrical Czerny-Turner, 50 mm focal length
Wavelength range 1000 - 2000 nm 1000 - 2200 nm
Resolution (slit & grating dependent) 6-60 nm 4-60 nm
Stray-light < 1%
Sensitivity HS in counts / µW per ms 70,000 (integral 1000-2000 nm) 77,000 (integral 1200-2200 nm) 38,500 (integral 1200-2200 nm)
Signal/Noise HS 1500:1 1200:1
Integration time HS 10 µs - 350 ms 20 µs - 1 ms
Sensitivity LN in counts / µW per ms 4,000 (integral 1000-2000 nm) 2,750 (integral 1200-2200 nm) 1,375 (integral 1200-2200 nm)
Signal/Noise LN 4000:1 4100:1
Integration time LN 10 µs - 6 seconds 20 µs - 50 ms
Detector InGaAs linear array with 2 stage TE-cooling, 256 pixels InGaAs linear array with 2 stage TE-cooling, 512 pixels
Pixel size (WxH) 50 µm x 250 µm 50 µm x 500 µm 25 µm x 500 µm
AD converter 16 bit, 500 kHz 16 bit, 2.4 MHz
Interface USB 2.0 high speed, 480 Mbps
RS-232, 115,200 bps
Sample speed with on-board averaging 0.54 ms / scan 0.19 ms / scan @ 0.08 ms int. time 0.31 ms / scan @ 0.09 ms int.time
Data transfer speed 1.0 ms / scan (USB2)
60 ms / scan (RS-232)
1.2 ms / scan (USB2)
120 ms / scan (RS-232)
Digital IO HD-26 connector, 2 Analog in, 2 Analog out, 3 Digital in, 12 Digital out, trigger, synchronization
Power supply 100-240 VAC, 50/60 Hz, 35 W
Dimensions, weight 315 x 235 x 135 mm, 5.1 Kg

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