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Sol™ 2.2A

Sol 2.2A (BTC262A-ST1): 3-Stage TE Cooled (down to -15C), 256 element, extended wavelength linear InGaAs array spectrometer: Includes SMA905 fiber coupler for light input; built-in 16 bit digitizer; USB 2.0/1.1 interface; USB cables; and appropriate filter.

Wavelength Range: 1100-2200 nm
Spectral Resolution (FWHM): 9.0 nm
Fiber Type: LP1000
Grating: Ruled, 100/1600
Slit Width: 50 um

BWSpec software is included. Fiber is not included.

Key Features

  • 900nm - 2200nm spectral range
  • Resolution as fine as 9.0 nm
  • -15°C Thermoelectric Cooling
  • Built-in autozero (noise level reduction)
  • Four sensitivity & dynamic range modes for specific application needs

Custom Capabilities

The Sol 2.2A NIR spectrometer features a SMA 905 fiber optic input, built-in 16-bit digitizer, and is USB 2.0 plug-and-play compatible. This spectrometer is ideal for demanding applications in process monitoring, quality control, and materials identification. Customized spectral resolution and application support are also available for OEM customers.


DC Power Input 5V DC @ 5 Amps
AC Adapter Input 100 - 240VAC 50/60 Hz, 1.0A @ 120VAC
Detector Type Linear InGaAs Array
Pixels 256 x 1 @ 50μm x 250μm Per Element
Spectrograph f/# 3.5
Spectrograph Optical Layout Crossed Czerny-Turner
Dynamic Range Maximum Dynamic Mode: 25,000:1
High Dynamic Mode: 12,500:1
High Sensitivity Mode: 12,500:1
Maximum Sensitivity Mode: 1,700:1
Digitizer Resolution 16-bit or 65,535:1
Readout Speed 500 kHz
Data Transfer Speed >300 Spectra Per Second Via USB 2.0
Integration Time 250μs to >= 64 Seconds
External Trigger Aux Port
Operating Temperature 0°C - 35°C
TE Cooling Three-Stage: -15°C @ Relative Humidity = 90%
Weight ~ 3.1 lbs (1.4 kg)
Dimensions 7.5in x 4.3in x 2.7in (192mm x 109mm x 68mm)
Computer Interface USB 2.0 / 1.1
Operating Systems Windows: 7, 8, 8.1 (32-bit & 64-bit)


  • Process Monitoring
  • NIR Spectroscopy
  • Quality Control
  • On-line Analyzer
  • Material Identification