SPECTRO 320 - the most accurate and universal Spectrometer

The SPECTRO 320 is based on an innovative fast scanning technology that combines accurate and fast measurements with high dynamic range. The SPECTRO 320 is in addition a feature-rich system, making it a truly flexible and universally applicable spectrometer. Fully equipped the SPECTRO 320 houses 3 gratings and 3 detectors and covers an enormous spectral range from 190 to 5000 nm.

The SPECTRO 320 is available as a single or as a double monochromator (SPECTRO 320D). The fast scanning technology is in particular advantageous in the double monochromator configuration. The diffraction gratings of both monochromator stages are mounted on the same rotating axis, eliminating synchronization errors und guaranteeing short acquisition times in association with high wavelength accuracy.

Features:

fast scanning technology for high wavelength accuracy and signal dynamic combined with short measurement times
up to 190 - 5000 nm spectral range in a single scan
optional cooled photomultiplier as well as cooled silicon and extended InGaAs detectors (up to 2150 nm) are available
programmable spectral resolution (bandpass) and wavelength steps
integrated optical density and order sorting filter wheels
RS-232 and IEEE-488 interfaces
standard SCPI command protocol for simple remote control and programming
optional Optical Port with optical output and detector input ports

Applications:

truly universal spectrometer for a multitude of laboratory applications
high-end spectroradiometer for the UV-VIS-IR range (e.g. UV-B, solar radiation)
high resolution spectral analysis, e.g. of laser diodes and spectral emission lines
NVIS measurements according to MIL-L-85762A or MIL-STD-3009

Technical Specifications:

SPECTRO 320 Scanning Spectrometer
Wavelength range	190 - 5000 nm (with 3 gratings and 3 detectors)
Spectral resolution	0.2 nm (0.07 *HR) - 10 nm; programmable slit wheel
Datapoint interval	0.05 nm (0.01 nm *HR)
Wavelength accuracy	+/- 0.1 nm; (+/- 0.03 nm *HR)
Signal sensitivity	Si detector: 510^-11 W/nm; PMT: 510^-15 W/nm
Scan times	10 - 100 msec / nm
Stray light	SPECTRO 320: 10^-5 ; SPECTRO 320D: 10^-9

*HR: high resolution encoder (optional)

Ordering Information:

Single Monochromator	Double Monochromator	Model	Wavelength Range
1 grating and 1 detector
SP320-120	SP320-160	VIS	350 - 1100 nm
SP320-121	SP320-161	UV	190 - 1050 nm
SP320-122	SP320-162	IR1	800 - 1700 nm
2 gratings and 2 detectors
SP320-123	SP320-163	VIS-IR1	350 -1700 nm
SP320-124	SP320-164	UV-IR1	190 -1700 nm
SP320-125	SP320-165	VIS-IR2	350 - 3200 nm
SP320-126	SP320-166	UV-IR2	190 -3200 nm
3 gratings and 3 detectors
SP320-128	-	VIS-IR1-IR3	350 - 5000 nm
SP320-129	-	UV-IR1-IR3	190 - 5000 nm

Downloads

Further Information

The Fast-Scanning Technology

A rapid spectrum acquisition is achieved by continuous rotation of the grating using a dc motor. A complicated mechanical drive is no longer necessary because a precise angular encoder is attached directly to the grating turret. The encoder synchronizes data acquisition and ensures high wavelength accuracy over the whole wavelength range.

Single Monochromator

All optical elements of the asymmetric Czerny-Turner monochromator comprise reflective optics with a broadband coating for 190 - 5000 nm. An optional direct fiber input (DFI) is placed at the entrance slit to replace the traditional focusing optics. Behind the exit slit, further reflection optics guide the beam to the appropriate detector.

Double Monochromator

Superimposing two single monochromators in a subtractive arrangement permits a compact format. Short scan times combined with very high wavelength accuracy and stability are the principle advantages. As both gratings rotate on the same axis, synchronization issues between the two monochromator stages are eliminated.