- NIR Measurements in the 900-1700nm range
- Spectral resolution down to 1nm for certain models
- Miniature size 5x3x2″ with rugged, compact design
- Integrated thermo electric cooler set to operate at -15 deg C
- Complete Software Development and Integrated Chemometrics options
- For NIR portable and OEM applications
The StellarNet DWARF-Star NIR spectrometers are fiber optically coupled instruments with a wide selection of models for measurements in the 900-1700nm wavelength range achieving resolving resolutions down to 1.25nm.
High performance InGaAs detectors from Sensors Unlimited are installed in each DWARF-Star with options for 512 or 1024 linear pixels. Each pixel is 25μm by 500μm tall to provide maximum sensitivity. The detector has an integrated thermo electric cooler (TEC) maintained at –15 degrees, stabilized within +/-0.1 °C (optional 2-stage cooling is available).
Various models provide a choice of grating range and slit resolutions. New and improved electronics with a high speed 16-bit digitizer allows for fast data acquisition and a signal to noise of 4000:1! Includes 10x electronic gain mode.
Ruggedized– The detachable spectrograph assembly and control electronics are protected inside a rugged metal enclosure, suitable for portable, process, lab, and field applications.
Multi-unit connection can be daisy chained together and are able to run simultaneously.
USB powered directly from your PC’s USB port. DWARF-Star spectrometers come with integrated TE coolers which can be activated with 5VDC power adapter included with each system; however, many applications can be ran without cooling.
Onboard Memory with pre-set calibrations and spectrometer settings and snap shot memory to provide instantaneous spectral image.
High Speed Electronic Interface can be attached directly to a computers USB port for data transfer or zAP2 upgrade for wifi control.
Many Options & Upgrades– The DWARF-Star spectrometer platform supports a variety of options and upgrades such as TTL triggering options, zAP 1 & 2 electronics upgrades for increased dynamic range, burst acquisition, and onboard CPU with Wifi communication. See more information below under DWARF-Star options. ContactUs@StellarNet.us for more info.
StellarNet also offers light sources, probes, and sampling accessories to facilitate virtually any NIR application. The miniature DWARF-Star NIR spectrometer is ideal for process analytical technology for industries such as food and drug, chemical, oil and gas, and plastics. The DWARF-Star’s miniature size, low cost, and rugged design also make it ideal for the field, enabling on-site product analysis and quality control never before attainable.
|Number of Elements||Spectrometer Range (nm)||Grating (g/mm)||Grating Range (nm)||Dispersion (nm/pixel)||Estimated Resolving Resolution|
|Specifications DWARF-Star NIR Spectrometer $13,125 OEM Pricing available|
|Dynamic range: 4000:1 with 5 decades||Dimensions: 5x3x2″|
|Resolving resolution: 2.5nm with 25μm slit||Power consumption: 1.5 Amps @ 5 VDC|
|InGaAs Detector: 512 or 1024 pixels||Interface: USB-2 or Wifi2, RS2323, SPI3, 4-20mA3 , Digital I/O3 or ethernet3|
|Detector range: 900-1700nm||Data transfer speed: 30Hz or 1000Hz1|
|Pixel size: 25um x 500um||Detector Integration: 1 ms to 8 minutes|
|Pixel well depth: 130 x108 electrons||Slit size options: 25μm|
|Selectable well control: 130 x108 or 5 x106 el.||Operating systems: Windows and Linux2, Andriod2, iOS|
|Signal to noise: 4000:1 with TEC cooling||Software included: SpectraWiz Program, WinSDK (C,C#,VB, Delphi), Customizable LabVIEW, VBA for Excel (CRI & LED Report)|
1 zAP1 Electronics Upgrade 2 zAP2 Wifi + Applications Processor Upgrade with SpectraWiz Mobile Software3 SMART-Control Interface
DWARF-Star Sample Spectra
DWARF-Star NIR Spectrometer
SpectraWiz Software displaying a time series increase of NIR water absoprtion bands.
SpectraWiz software interface displaying raw NIR reflectance spectra of dietary supplement powders with inset multivariate calibration model
NIR spectra of Milk Powders
JACK 1-In Trigger
TTL input trigger to enable spectrometer scan $175
zAP1 Electronics Upgrade
zAutomation Processor 1 upgrade provides auto and user controllable spectral baseline and gain for maximized dynamic range and burst mode for high speed consecutive spectral capture. $350 (available currently on new spectrometers)
zAP2 Electronics Upgrade
zAutomation Processor 2 upgrade provides an integrated wireless cpu with Wifi access to spectrometer and/or control of application from smart phone. Programmable memory allows customization using popular python language. zAP2 upgrade can be added to new and most old spectrometers in the field. Once added the spectrometer runs as normal receiving power from the computer’s USB; if 5VDC power is connected directly to the DWARF-Star the zAP2 CPU initializes and wireless communication begins. zAP2 comes pre-programmed with the latest Spectroscopy Mobile App software and StellarNet Linux Driver set. $550
Detector TEC Upgrades
Standard DWARF-Star models come with integrated 1-stage TE cooler for -15 degree cooling from ambient. 2-stage deep cooled options down to -30 degrees are also available.
The powerful SpectraWiz® spectrometer software is provided free of charge with every spectrometer instrument. This includes drivers and customizable software for Windows. The SpectraWiz software is considered the “Swiss Army Knife of Spectroscopy” and may be used to accurately measure wavelength emissions, reflectance, transmission, absorption, concentrations, and absolute intensities. In addition to real-time spectroscopy, SpectraWiz® has built-in applications for SpectroRadiometry, SpectroColorimetry, ChemWiz chemistry lab concentration analyzer, and UV level monitors. Download SpectraWiz Software FREE
SpectraWiz MobileTM App Software
StellarNet introduces the new SpectraWiz Mobile Application Software designed to run directly on the zAP2 or SMART-Control spectrometer interfaces and connect directly to mobile devices. Using the local access point or Wifi you can easily log in and run applications for General Spectroscopy, Radiometry, Colorimetry, and Concentration analysis.
The easy to use applications are written in python and provided free with purchase of a zAP2 or SMART-Control spectrometer upgrades. In-app purchases allow users to download source codes, which can be further customized to suite each user’s requirements. OEM customers can add their logos or additional computations and industrial customers can set their spectrometer and stream their data to PLCs or other process monitoring platforms. SMART-Control devices support RS232, 4-20mA Analog, 26 pin digital I/O, Ethernet, I2C and other options available upon request.
zAP2 Wifi Interface Upgrade
zAutomation Processor 2 (zAP2) electronics upgrade provides integrated wireless cpu with Wifi access to spectrometer. Programmable memory allows customization using popular python language. zAP2 comes pre-programmed with the latest Spectroscopy Mobile App software and StellarNet Linux Driver set.
SMART-Control Interface Upgrade
The SMART-Control device offers communication flexibility and application specific customization for any StellarNet spectrometer. This add-on interface includes an integrated CPU with 1GB RAM and many communication protocols such as RS232, SPI, 4-20mA Analog for PLCs, Digital I/O, Ethernet, Wifi and many other options. The SMART-Control allows customers to move their spectrometers into process or OEM environments and stream their selected real world data. $1500
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