Anglia Instruments Ltd

AvaSpec-256

AvaSpec-256

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The AvaSpec-256 Fibre Optic Spectrometer is based on the AvaBench-45 symmetrical Czerny-Turner design with 256 pixel CMOS 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 13 different gratings with different dispersion and blaze angles enable applications in the 200-1100nm range. The AvaSpec-256 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-256 is especially suitable for low noise applications. Digital IO ports enable external triggering and control of a shutter and pulsed light sources from the Avantes line of instruments.

The AvaSpec-256 is also available as a dual or multiple channel instrument (up to 8 channels), where all spectra are taken simultaneously.

The AvaSpec-256 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-256-USB2 has a USB2 interface with ultrafast datasampling of 1500 spectra per second (with on-board averaging), data transfer in 1.5msec 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-256

AvaSpec-256-USB2

Optical Bench

Symmetrical Czerny-Turner, 45mm focal length

Wavelength Range

200-1100nm

Resolution

0.4-64nm, depending on configuration

Stray Light

<0.2%

Sensitivity

(AvaLight-HAL, 8µm Fibre)

30 counts/µW per ms integration time

Detector

CMOS Linear Array, 256 pixels

Signal/Noise

2000:1

AD Converter

14 bit, 330kHz

16 bit, 500kHz

Integration time

2msec – 60sec

0.6msec – 10min

Interface

USB1.1, 12Mbps

RS232, 115,200bps

USB2.0 high speed, 480Mbps

RS232, 115,200bps

Sample Speed

(with on-board averaging)

4msec/scan

0.6msec/scan

Data Transfer Speed

7-9ms/scan (depending on pixel # transferred)

1.5ms/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-256

Use

Useable range

Spectral range

Lines/mm

Blaze (nm)

Order code

UV/VIS/NIR

200-1100nm*

900nm*

122

250

UZ

UV/VIS/NIR

200-1100nm

400nm*

300

300

UA

UV/VIS

200-850nm

200nm

600

250

UB

UV

200-750nm

100nm

1200

250

UC

UV/VIS

250-850nm

200nm

600

370

BB

VIS/NIR

300-1100nm*

800nm*

150

500

VZ

VIS/NIR

300-1100nm

400nm

300

500

VA

VIS

360-1000nm

200nm

600

500

VB

VIS

300-800nm

100nm

1200

500

VC

NIR

500-1050nm

200nm

600

750

NB

NIR

500-1000nm

100nm

1200

750

NC

NIR

600-1100nm

400nm*

300

1000

IA

NIR

600-1100nm

200nm

600

1000

IB

* Please note that not all 256 pixels will be used for the useable range

Resolution Chart for the AvaSpec-256

 

Slit Size (µm)

Grating (l/mm)

25

50

100

200

500

150l/mm

4.5

6.4

12.8

26.0

64.0

300l/mm

2.5

3.2

6.4

13.0

32.0

 600l/mm

1.0

1.5

3.0

6.0

16.0

1200l/mm

0.5

0.8

1.5

3.0

8.0

 

FWHM Resolution (nm)

Ordering Information

Part Number

Description

AvaSpec-256

Fibre Optic Spectrometer, 45mm AvaBench, 256 pixel CMOS detector, self powered USB1.1, USB1.1/RS-232 interface, includes AvaSoft-BASIC, USB cable. Please specify grating, wavelength range and options

AvaSpec-256-USB2

Fibre Optic Spectrometer, 45mm AvaBench, 256 pixel CMOS detector, self powered high speed USB2, USB2/RS-232 interface, includes AvaSoft-BASIC, USB cable. Please specify grating, wavelength range and options

AvaSpec-256-2

Dual Channel Fibre Optic Spectrometer, 2x 45mm AvaBench, 256 pixel CMOS 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

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