With its adaptable and flexible design, the VARIUS™ spectrometer supports a broad range of sample analyses and measurements, facilitating rapid insights into research or applications.
The VARIUS™ is offered in both standard and industrial (OEM) models. It features a choice between a 2048 or 4096-pixel detector and supports high-speed data transfer via USB3 and Gigabit Ethernet. The OEM model is equipped with a robust steel housing and electromagnetic shielding, engineered for seamless integration into existing devices or systems.
Patented Technology
The VARIUS™ spectrometer, featuring patented technology and an enhanced optical bench design, significantly outperforms its predecessors, ensuring exceptional accuracy and reliability across various applications. It integrates seamlessly with AvaSoft software and crosslink solutions, enhancing its versatility.
Enhance performance by using slits of various sizes to suit your needs. The innovative magnetic connector cover system provides easy access for slit changes, simplifying performance adjustments and customization. This design allows for effortless adaptation to different measurement scenarios, ensuring optimal results.
Avantes Varius Spectrometer | When Versatility Meets Precision
Video Credit: Avantes BV
High Reproducibility
Avantes’ automated manufacturing process for the VARIUS™ spectrometer allows for the production of high volumes with remarkable efficiency, speed, and precision. This automation guarantees consistency, ensuring that each VARIUS™ spectrometer is identical to the next. As a result, the streamlined production process enables the delivery of high-quality spectrometers more quickly than ever before.
Product Compatibility
The new VARIUS™ spectrometer is designed to work seamlessly with Avantes light sources, accessories, and AvaSoft software. This compatibility enables users to tailor their setups precisely to their measurement requirements.
VARIUS | Key Features
- Great signal-to-noise, sensitivity, and speed performance
- High-speed communication up to 5 Gigabit per second
- High unit-to-unit reproducibility
- Improved temperature stability
- Improved optical bench
- Measurement flexibility – by changing the slit size
- Patented technology inside
Video Credit: Avantes BV
Technical Data. Source: Avantes BV
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VARIUS™ 2K |
VARIUS™ 4K |
| Optical Bench |
Symmetrical Czerny-Turner design, 75 mm focal length; VRS bench |
Symmetrical Czerny-Turner design, 75 mm focal length; VRS bench |
| Wavelength range |
190 – 1100 nm |
190 – 1100 nm |
| Stray light |
0.1 – 1% (typical value 300 l/mm, blaze 300 nm < 0.3%) |
0.1 – 1% (typical value 300 l/mm, blaze 300 nm < 0.3%) |
| Detector |
HAM S11639, CMOS linear array, 2048 pixels (14×200 µm) |
HAM S13496, CMOS linear array, 4096 pixels (7×200 µm) |
| Signal / Noise |
375:1 |
365:1 |
| Dynamic Range |
4500 |
4500 |
| Dark Noise |
15 cnts |
15 cnts |
| AD converter |
16-bit, 6 MHz |
16-bit, 6 MHz |
| Integration time |
9 µs – 30 seconds |
9 µs – 30 seconds |
| Interface |
USB 3.0 high speed (5Gbps), Gigabit Ethernet (1 Gbps) |
USB 3.0 high speed (5Gbps), Gigabit Ethernet (1 Gbps) |
| Sample speed on-board averaging |
0.38 ms /scan |
0.70 ms /scan |
| Data transfer speed |
0.38 ms/scan (USB3.0), 1.0 ms (ETH) |
0.70 ms/scan (USB3.0), 1.31 ms (ETH) |
| Digital I/O |
HD-26 connector, 2 Analog in, 2 Analog out, 13 Digital bidirectional, trigger, sync., strobe, laser |
HD-26 connector, 2 Analog in, 2 Analog out, 13 Digital bidirectional, trigger, sync., strobe, laser |
| Dimensions, weight |
183 x 130 x 45,2 mm, 1068 grams |
183 x 130 x 45,2 mm, 1068 grams |
| Power supply |
Default USB3 power, 500 mA or 12 VDC, 300 mA |
Default USB3 power, 500 mA or 12 VDC, 300 mA |
| Temperature range |
5 – 55 °C |
5 – 55 °C |
Gratings. Source: Avantes BV
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Useable range (nm) |
Spectral Range |
Lines/mm |
Blaze (nm) |
Order code |
| UV/VIS/NIR |
190-1160** |
910** |
300 |
300 |
MN0300-0.30 |
| UV/VIS |
190-850 |
544-540* |
600 |
300 |
MN0600-0.30 |
| UV |
190-750 |
261-256* |
1200 |
250 |
MN1200-0.25 |
| UV |
190-650 |
168-152* |
1800 |
UV |
MN1800-0.25 |
| UV |
190-580 |
121-103* |
2400 |
UV |
MN2400-0.25 |
| UV |
190-400 |
72-57* |
3600 |
UV |
MN3600-0.25 |
| UV/NIR |
250-850 |
536-532* |
600 |
400 |
MN0600-0.40 |
| VIS/NIR |
300-1160** |
800** |
300 |
500 |
MN0300-0.50 |
| VIS |
360-1000 |
529-519* |
600 |
500 |
MN0600-0.50 |
| VIS |
300-800 |
247-216* |
1200 |
500 |
MN1200-0.50 |
| VIS |
350-750 |
147-121* |
1800 |
500 |
MN1800-0.50 |
| VIS |
350-640 |
96-89* |
2400 |
VIS |
MN2400-0.50 |
| NIR |
500-1050 |
515-506* |
600 |
750 |
MN0600-0.75 |
| NIR |
500-1050 |
210-204* |
1200 |
750 |
MN1200-0.75 |
| NIR |
600-1160 |
339-300* |
830 |
800 |
MN0830-0.80 |
| NIR |
600-1160** |
500** |
300 |
1000 |
MN0300-1.00 |
| NIR |
600-1160 |
500 |
600 |
1000 |
MN0600-1.00 |
Note: a selection of starting wavelength is possible; contact us for available configurations.
* 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 pixels will be used for the useable range
Resolution. Source: Avantes BV
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| Slit size (μm) |
10 |
25 |
50 |
100 |
200 |
500 |
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VARIUS™ 2K Resolution |
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| 300 lines/mm grating |
1.0 |
1.4 |
2.25 |
4.8 |
9.2 |
21.3 |
| 600 lines/mm grating |
0.40-0.53* |
0.7 |
1.2 |
2.4 |
4.6 |
10.8 |
| 830 lines/mm grating |
0.32 |
0.48 |
0.93 |
1.7 |
3.4 |
8.5 |
| 1200 lines/mm grating |
0.20-0.28* |
0.27-0.38* |
0.52-0.66* |
1.1 |
2.3 |
5.4 |
| 1800 lines/mm grating |
0.10-0.18* |
0.20-0.29* |
0.34-0.42* |
0.8 |
1.6 |
3.6 |
| 2400 lines/mm grating |
0.09-0.13* |
0.13-0.17* |
0.26-0.34* |
0.44-0.64* |
1.1 |
2.7 |
| 3600 lines/mm grating |
0.06-0.08* |
0.10 |
0.19 |
0.4 |
0.8 |
1.8 |
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VARIUS™ 4K Resolution |
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| 300 lines/mm grating |
0.50-0.70 |
1.4 |
2.25 |
4.8 |
9.2 |
21.3 |
| 600 lines/mm grating |
0.30-0.36* |
0.7 |
1.2 |
2.4 |
4.6 |
10.8 |
| 830 lines/mm grating |
0.25 |
0.48 |
0.93 |
1.7 |
3.4 |
8.5 |
| 1200 lines/mm grating |
0.14-0.18* |
0.27-0.38* |
0.52-0.66* |
1.1 |
2.3 |
5.4 |
| 1800 lines/mm grating |
0.09-0.11* |
0.20-0.29* |
0.34-0.42* |
0.8 |
1.6 |
3.6 |
| 2400 lines/mm grating |
0.07-0.09* |
0.13-0.17* |
0.26-0.34* |
0.44-0.64* |
1.1 |
2.7 |
| 3600 lines/mm grating |
0.05-0.06* |
0.10 |
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 higher the resolution.
Ordering Information. Source: Avantes BV
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| AvaSpec-VRS2048CL-EVO |
VARIUS™ fiber-optic spectrometer, 75 mm AvaBench, 2048 pixel CMOS detector 14 x 200 μm, USB powered, high-speed USB 2.0 and ETH interface, incl. AvaSoft-Basic, USB interface cable. Specify grating, wavelength range and options (A). |
| AvaSpec-VRS4096CL-EVO |
VARIUS™ fiber-optic spectrometer, 75 mm AvaBench, 4096 pixel CMOS detector 7 x 200 μm, USB powered, high-speed USB 2.0 and ETH interface, incl. AvaSoft-Basic, USB interface cable. Specify grating, wavelength range and options (A). |
| AvaSpec-VRS-OEM |
Contact one of our offices for ordering information regarding the VARIUS™ OEM |
Options. Source: Avantes BV
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| SLIT-XX-PRS |
Replaceable Slit for VARIUS™ spectrometer for non OSF configurations. Slit size, please specify XX = 10, 25, 50, 100, 200, 500 μm |
| SLIT-XX-PRSF |
Replaceable Slit for VARIUS™ spectrometer for OSF configurations. Slit size, please specify XX = 10, 25, 50, 100, 200, 500 μm |
| *SLIT-XX-P |
Fixed Slit for VARIUS™ spectrometer. Slit size, please specify XX = 10, 25, 50, 100, 200, 500 μm |
| OSC |
Order sorting coating for grating MN 0600-0.50 and MN 0600-0.40 (>350 nm)
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| OSC-UA |
Order sorting coating for grating MN 0300-0.30 / MN 0300-0.50 |
| OSC-UB |
Order sorting coating for grating MN 0600-0.30 and MN 0600-0.40 (<350 nm)
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| OSF-YYY-3 |
Order sorting filter for reduction of second-order effects, possible: YYY = 305, 395, 457, 515, 550, or 600 nm, depending on range |
| DCL |
Detector Collection Lens. To be included |
* Only for OEM customers will Avantes select the optimal second-order suppression based on the desired configuration.