The AvaSpec-ULS2048x64TEC-EVO is an updated version of our AvaSpec-ULS2048x64TEC spectrometer, with improved electronics and cooling.

This instrument enhances the Sensline series with its cooled, back-thinned detector. The back-thinned detector has good sensitivity in the UV and IR region. The 64-pixel height (0.89 mm) enables catching as many photons as possible while the cooling enables long integration times up to 120 seconds with low-noise levels.

The instrument features Peltier cooling device integrated into our exclusive ultra-low stray light optical bench, which can reduce the temperature of the CCD chip to -30°C against ambient, improving the dark baseline and PRNU level significantly. The detector cooling also reduces the dark noise by a factor of 2-3.

The AvaSpec-ULS2048x64TEC-EVO uses a special low-noise version of the 2048×64 detector with integrated cooling.

All the features mentioned above make this instrument ideally suited for measuring low-light applications, such as fluorescence or low-light Raman measurements.

Optimal flexibility is guaranteed with the replaceable slit, making the instrument suitable for various kinds of applications.

The above-mentioned qualities make the AvaSpec-ULS2048x64TEC-EVO an excellent choice for low light-level applications, such as fluorescence and Raman measurements, where integration times of more than 5 seconds may be needed.

Product Information

  • Technical Data

  • Gratings

  • Resolution

  • Ordering Information

  • Options

Optical bench ULS symmetrical Czerny-Turner, 75 mm focal length
Wavelength range 200-1160 nm
Resolution 0.09-20 nm, depending on configuration, see resolution tab
Stray light <1%, depending on grating
Sensitivity in counts/µW per ms integration time 300,000
Detector CCD linear array, 2048×64 pixels, low noise
Temperature cooled CCD Max. ΔT = -30°C versus ambient. Optimal setting: 5°C
3 stage Peltier cooling internal power supply@ΔT=-35° 5 VDC, 3.0 A
Signal/noise 550:1
AD converter 16 bit, 500 KHz
Integration time 9.7 ms-120 seconds
Interface USB 3.0 high speed, 5 Gbps, Gigabit Ethernet 1Gbps
Sample speed with on-board averaging 9.7 ms/scan
Data transfer speed 9.7 ms/scan (USB3 and ETH)
Digital IO HD-26 connector, 2 Analog in, 2 Analog out, 13 Digital bidirectional, trigger, sync, strobe, laser
Power supply 12 VDC, 1.5 A
Dimensions, weight 185 x 145 x 184 mm, 3.5 kg
Use Useable range (nm) Spectral range (nm) Lines/mm Blaze (nm) Order code
UV/VIS/NIR 200-1160** 960** 300 300 UA
UV/VIS/NIR 200-1100** 900** 300 300/1000 UNA-DB
UV/VIS 200-850 520 600 300 UB
UV 200-750 250-220* 1200 250 UC
UV 200-650 165-145* 1800 UV UD
UV 200-580 115-70* 2400 UV UE
UV 200-400 70-45* 3600 UV UF
UV/VIS 250-850 520 600 400 BB
VIS/NIR 300-1160** 860** 300 500 VA
VIS 360-1000 500 600 500 VB
VIS 300-800 250-200* 1200 500 VC
VIS 350-750 145-90* 1800 500 VD
VIS 350-640 75-50* 2400 VIS VE
NIR 500-1050 500 600 750 NB
NIR 500-1050 220-150* 1200 750 NC
NIR 600-1160 350-300* 830 800 SI
NIR 600-1160** 560** 300 1000 IA
NIR 600-1160 500 600 1000 IB

*Depends on the starting wavelength of the grating; the higher the wavelength, the bigger the dispersion and the smaller the range to select. **Please note that not all 2048 pixels will be used for the useable range.

Slit size (nm) 10 25 50 100 200 500
300 lines/mm grating 1.4 1.5 2.5 4.8 9.2 21.3
600 lines/mm grating 0.70-0.80* 0.75-0.85* 1.2 2.4 4.6 10.8
830 lines/mm grating 0.42-0.48* 0.50-0.58* 0.93 1.7 3.4 8.5
1200 lines/mm grating 0.25-0.31* 0.37-0.43* 0.52-0.66* 1.1 2.3 5.4
1800 lines/mm grating 0.17-0.21* 0.26-0.32* 0.34-0.42* 0.8 1.6 3.6
2400 lines/mm grating 0.12-0.18* 0.18-0.24* 0.26-0.34* 0.44-0.64* 1.1 2.7
3600 lines/mm grating 0.08-0.12* 0.11-0.15* 0.19 0.4 0.8 1.8

*Depends on the starting wavelength of the grating; the higher the wavelength, the bigger the dispersion and the smaller the range to select

AvaSpec-ULS2048x64TEC-EVO Thermoelectrically cooled fiber-optic spectrometer, 75 mm ultra-low stray light AvaBench, 2048×64 pixels, cooled and regulated low-noise CCD detector, USB3/ETH high-speed interface and replaceable slit, incl. AvaSoft-Basic, USB cable, desktop housing. Specify grating, wavelength range and options
DCL-UV/VIS-200 Detector Collection Lens to enhance sensitivity, Quartz, 200-1160 nm
SLIT-XX Slit size, please specify XX = 10, 25, 50, 100, 200 or 500 µm
SLIT-RS Replaceable slit with SMA connector for -RS option. specify XX=25,50,100,200,500 µm
OSF-YYY Order-sorting filter for reduction of 2nd order effects, please specify YYY= 395, 475, 515, 550 or 600 nm
OSC Order-sorting coating with 600 nm long-pass filter for VA, BB (>350 nm) and VB gratings
OSC-UA Order-sorting coating with 350 and 600 nm long-pass filter for UA gratings
OSC-UB Order-sorting coating with 350 and 600 nm long-pass filter for UB or BB (<350 nm) gratings
-FCPC FC/PC fiber-optic connector
-RS Replaceable Slit for the AvaSpec-ULS2048x64TEC
-FCPC FC/PC fiber-optic connector

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