Exemplar Plus LS: Low Straylight High Performance Smart CCD Spectrometer

The Exemplar® Plus LS is a high performance smart spectrometer that minimizes stray using an aberration corrected concave holographic grating. Superior data quality over the entire 190 - 1100 nm spectral range is delivered by the long focal length, coupled with a high quantum efficiency detector.

The Exemplar Plus LS features a built-in shutter that enables for dark scan measurements, even while illuminated, and also features high signal to noise ratio, making it ideal for low light level applications. As a member of the Exemplar product line, the Exemplar® Plus LS features on board data processing and USB 3.0 communication. This product line is also optimized for multi-channel operation featuring ultra-low trigger delay and gate jitter.

Standard spectral configurations range from 180 nm - 1050 nm and resolutions range between 0.6 nm and 6.0 nm. Custom configurations are available for OEM applications.

Applications:

The key applications of the Exemplar® Plus LS are as follows:

  • LED characterization
  • Gas and water analysis
  • BioMedical spectroscopy
  • On-line process monitoring
  • Raman and fluorescence spectroscopy
  • LCD display measurement
  • Low light level UV to NIR spectroscopy

Features

Smart:

On-board processing including averaging, smoothing, and dark compensation

Speed:

Acquires and transfers more than 140 spectra per second at an integration time of 6.3 ms

Synchronous:

Supports up to 32 devices with ultra-low trigger delay (95 ns) and gate jitter (+/- 20 ns)

Signal to Noise Ratio:

On-board Averaging 1 ~540
On-board Averaging 10 ~1900
On-board Averaging 100 ~4800

Additional Features:

Some of the additional features of the Exemplar® Plus LS are given below:

  • Extremely low stray light
  • Built-in shutter
  • 2048 detector elements
  • Over 60% QE at 200 nm
  • High UV, Vis, and NIR response
  • Configurable cooling temperature (0° default)

Specifications

Power Input 5 V DC @ 3.0 A (Maximum at Startup)
Detector Type Back-thinned CCD Array
Wavelength Range 190 nm - 1100 nm
Detector Pixel Format 2048 Effective Detector Elements
Effective Pixel Size 14 µm x ~ 0.9 mm
Spectrograph f/# 3.0
Spectrograph Optical Layout Concave Holographic, Aberration Corrected, Flat Field
Dynamic Range 50,000 (Typical)
Digitizer Resolution 16-bit or 65,535:1
Data Transfer Speed >140 Spectra per Second at Integration Time of 6.3ms in Burst Mode
Trigger Delay 95 ns +/- 20 ns (call for timing diagram)
Readout Speed > 400 kHz
Integration Time 6.3 ms, Adjustable in 1 µs Increments
Aux Port External Trigger, 4 Digital Outputs (2 with Shutter Control), 2 Digital Inputs, Analog Input, Analog Output and System Reset
Operating Temperature 5 °C – 35 °C
Operational Relative Humidity 85% Noncondensing
CCD Cooling Default: 0 °C at Ambient of 25 °C.
Weight 2.6 lbs
Dimensions 7.0 in x 4.25 in x 2.68 in (178 mm x 108 mm x 67 mm)
Computer Interface USB 3.0 / 2.0
Operating Systems Windows: 7, 8 (32-bit & 64-bit)

 

Technical details

Spectrograph

Entrance Slit

Slit Option Dimensions Approx. Resolution 350-750 nm
10 µm 10 µm wide x 2 mm high ~2.0 nm
25 µm 25 µm wide x 2 mm high ~2.5 nm
50 µm 50 µm wide x 2 mm high ~3.2 nm
100 µm 100 µm wide x 2 mm high ~6.0 nm
Custom Configurations Available

 

Diffraction Grating

Best Efficiency Spectral Coverage (nm)
UV/Vis 180 - 450
UV-NIR 190 - 800
UV-NIR 400 - 800
UV-NIR 190 - 1100
UV-NIR 350 - 1050
Custom Configurations Available

Other Equipment by this Supplier