AvaSpec-2048
The AvaSpec-2048 Fibre Optic Spectrometer is based on the AvaBench-75 symmetrical Czerny-Turner design with 2048 pixel CCD Detector Array. The spectrometer has a fibre optic entrance connector (as standard SMA - other types are possible), collimating and focusing mirror and diffractional grating. A choice of 15 different gratings with different dispersion and blaze angles enable applications in the 200-1100nm range. The AvaSpec-2048 can be delivered with 2 different electronic platforms - either with USB1.1 or the new USB2.0 interface, both with 14bit A/D converter.
The AvaSpec-2048 is especially suitable for low light level and high resolution applications. An optional detector coating enhances the CCD performance for the UV range and a detector collection lens offers high sensitivity. Digital IO ports enable external triggering and control of a shutter and pulsed light sources from the Avantes line of instruments.
The AvaSpec-2048 is also available as a dual or multiple channel instrument (up to 8 channels), where all spectra are taken simultaneously.
The AvaSpec-2048 is supplied as standard with AvaSoft-BASIC, a complete manual, USB interface cable and will run on USB power (-SPU option). However, a PS-12V/1.0A power supply can be ordered separately for mains power use if this is preferred. In this case, the user will then have both options available. AvaSoft-FULL and application specific software can be ordered separately from the AvaSoft software library.
The new AvaSpec-2048-USB2 has a USB2 interface with ultrafast datasampling of 500 spectra per second, data transfer in 2msec and supports analog inputs and outputs.
Optional Bluetooth® (-BT) communication and an SDRAM card for on-board saving of spectra can be added.
For USB2 platform devices, multiple (up to 127) spectrometers with different detector types can be externally coupled (for further information, please view the section 'Multichannel Spectrometers').
For further information and assistance, please contact us.
Technical Details
|
Spectrometer Platform |
AvaSpec-2048 |
AvaSpec-2048-USB2 |
|
Optical Bench |
Symmetrical Czerny-Turner, 75mm focal length | |
|
Wavelength Range |
200-1100nm | |
|
Resolution |
0.04-20nm, depending on configuration | |
|
Stray Light |
<0.1% | |
|
Sensitivity (AvaLight-HAL, 8µm Fibre) |
5000 counts/µW per ms integration time | |
|
Detector |
CCD Linear Array, 2048 pixels | |
|
Signal/Noise |
250:1 | |
|
AD Converter |
14 bit, 1.33MHz |
16 bit, 2MHz |
|
Integration time |
2msec – 60sec |
1.1msec – 10min |
|
Interface |
USB1.1, 12Mbps RS232, 115,200bps |
USB2.0 high speed, 480Mbps RS232, 115,200bps |
|
Sample Speed (with on-board averaging) |
17msec/scan |
1.8msec/scan |
|
Data Transfer Speed |
14-31ms/scan (depending on pixel # transferred) |
2.0ms/scan |
|
Digital IO |
DB15 connector, 2 digital in, 12 digital out |
HD26 connector, 2 analogue in, 2n analogue out, 3 digital in, 12 digital out, trigger sync |
|
Power Supply |
12VDC, reverse polarity protection, 160mA (PS12V/1.0A) or 5VDC USB power |
Default USB power, 440mA, or with SPU2 external 12 VDC, 440mA |
|
Dimensions/Weight |
175x110x44mm (1 channel), 716g. 175x165x85mm (2 channel), 1700g. |
175x110x44mm (1 channel), 716g. |
Grating Selection Chart for the AvaSpec-2048
Use Useable range Spectral range Lines/mm Blaze (nm) Order code UV/VIS/NIR 200-1100nm** 900nm** 300 300 UA UV/VIS 200-850nm 520nm 600 250 UB UV 200-750nm 250-220nm* 1200 250 UC UV 200-650nm 165-145nm* 1800 250 UD UV 200-580nm 115-70nm* 2400 250 UE UV 220-400nm 75-50nm* 3600 250 UF UV/VIS 250-850nm 520nm 600 370 BB VIS/NIR 300-1100nm** 800nm** 300 500 VA VIS 360-1000nm 500nm 600 500 VB VIS 300-800nm 250-200nm* 1200 500 VC VIS 350-750nm 155-100nm* 1800 500 VD NIR 500-1050nm 500nm 600 750 NB NIR 500-1050nm 220-150nm* 1200 750 NC NIR 600-1100nm** 500nm** 300 1000 IA NIR 600-1100nm 500nm 600 1000 IB
* Depends on the starting wavelength of the grating; the higher the wavelength, the bigger the dispersion and the smaller the range.
** Please note that not all 2048 pixels will be used for the useable range
Resolution Chart for the AvaSpec-2048
|
|
Slit Size (µm) | |||||
|
Grating (l/mm) |
10 |
25 |
50 |
100 |
200 |
500 |
|
300l/mm |
0.8 |
1.4 |
2.4 |
4.3 |
8.0 |
20.0 |
|
600l/mm |
0.4 |
0.7 |
1.2 |
2.1 |
4.1 |
10.0 |
|
1200l/mm |
0.1-0.2* |
0.2-0.3* |
0.4-0.6* |
0.7-1.0* |
1.4-2.0* |
3.3-4.8* |
|
1800l/mm |
0.07-0.12* |
0.12-0.21* |
0.2-0.36* |
0.4-0.7* |
0.7-1.4* |
1.7-3.3* |
|
2400l/mm |
0.05-0.09* |
0.08-0.15* |
0.14-0.25* |
0.3-0.5* |
0.5-0.9* |
1.2-2.2* |
|
3600l/mm |
0.04-0.06* |
0.07-0.10* |
0.11-0.16* |
0.2-0.3* |
0.4-0.6* |
0.9-1.4* |
|
|
FWHM Resolution (nm) | |||||
Ordering Information
|
Part Number |
Description |
|
AvaSpec-2048 |
Fibre Optic Spectrometer, 75mm AvaBench, 2048 pixel CCD detector, self powered USB1.1, USB1.1/RS-232 interface, includes AvaSoft-BASIC, USB cable. Please specify grating, wavelength range and options |
|
AvaSpec-2048-USB2 |
Fibre Optic Spectrometer, 75mm AvaBench, 2048 pixel CCD detector, self powered high speed USB2, USB2/RS-232 interface, includes AvaSoft-BASIC, USB cable. Please specify grating, wavelength range and options |
|
AvaSpec-2048-2 |
Dual Channel Fibre Optic Spectrometer, 2x 75mm AvaBench, 2048 pixel CCD detectors, self powered USB1.1, USB1.1/RS-232 interface, includes AvaSoft-BASIC, USB cable. For both channels, please specify grating, wavelength range and options |
|
Options | |
|
-SPU |
Includes switch for self powered USB1 (external power supply required for RS-232 interface) |
|
-SPU2 |
Includes switch for self powered USB2 (external power supply required for RS-232 interface) |
|
BT |
Bluetooth® interface for USB2 platform only, includes antenna |
|
SDXXX |
Internal xxx MB SD card for on-board data saving, for USB2 platform only |
|
DUV |
Deep UV detector coating, required for use <350nm/>150nm |
|
DCL-UV/VIS |
Detector collection lens to enhance sensitivity, Quartz, 200-1100nm |
|
SLIT-xx |
Slit size, please specify xx = 10, 25, 50, 100, 200 or 500µm |
|
OSF-YYY |
Order sorting filter for reduction of 2nd order effects, please specify yyy = 385, 475, 515, 550 or 590nm |
|
OSC |
Order sorting coating with 590nm longpass filter for gratings VA, BB and VB, for the AvaSpec-2048 |
|
OSC-UA |
Order sorting coating with 350nm and 590nm longpass filter for grating UA, for the AvaSpec-2048 |
|
OSC-UB |
Order sorting coating with 350nm and 590nm longpass filter for grating UB, for the AvaSpec-2048 |



