GS 1000-II

The GS 1000-II, the smallest member of the OBLF family, is a single matrix spark emission spectrometer for all standard applications. Thanks to its compact and solid construction as well as its simple operation, it is ideal for use in production environments like foundries, but also for the purpose of incoming goods and materials control. In order to guarantee independence from the external conditions surrounding the spectrometer, the detectors (photomultipliers) and the integration system are housed in the temperature-stabilised vacuum optics. The analytic capability covers the precise analysis of short-wave elements like carbon, phosphorous, sulphur and nitrogen in steel or cast iron and phosphorous in aluminium.

Benefits

compact spectrometer
GDS III spark source
vacuum optics
self-cleaning spark stand
„mini-GISS“ as option
double electrode system as option

More Infos

Like with all OBLF spectrometers, the electrical spark is generated with the help of a Gated Digital Source (GDS), which enables simple determination of the best possible excitation parameters combined with short analysis times. The maintenance needs are low thanks to the easily accessible, self-cleaning spark stand. Our special, patented gas-supply system was optimised to keep argon consumption to a minimum, which results in very low operating costs.

Apart from on-screen display and output via a printer, the analysis results can also be made available to superordinate systems via a network connection. Our spectrometer software, OBLFwin, whose parameters can be set to suit the tasks of the individual customer, contains materials control, automatic program selection and machine monitoring options using control samples. The customer-specific calibration of the spectrometer is usually performed at OBLF’s premises, whereby we can also take samples provided by our customers into account.

Precise instructions on how to operate the spectrometer and use the software are naturally given during installation. The customer only has to ensure availability of a power and an argon supply.

Technical Data

Optics

spectrometer in Paschen-Runge mounting
Rowland circle diameter 500 mm
wavelength range 140-770 nm
optics and read-out electronics temperature stabilised to ± 0.1°C for excellent long-term stability
automatic computer controlled profiling
coma corrected slits
PMT types selected according to the respective wavelength
shock resistance

Vacuum System

evacuated light metal chamber
maintenance free 2-stage rotary vane pump
vacuum pump integrated in cabinet
pump duty cycle <5%
oil diffusion protection
automatic pressure regulation and stabilisation

Spark Generator

Gated Digital Source (GDS) with integrated multi-spark system
maintenance free
spark frequency up to 1 kHz
unipolar medium voltage discharge
separate parameter for pre-sparking and integration selectable
variable excitation parameters & discharge characteristics selectable by software
Ignition voltage 20kV

Spark Stand

Argon purged spark stand, optimised for low Ar consumption
patented self-cleaning
open sample stand for easy handling
low-wear top plate with 12 mm opening
optionally adapters for small parts and wires are available
low-wear tungsten electrode
pneumatic sample clamp for rapid sample handling
automatic electrode cleaning as option
About 3 l Argon consumption per measurement
easy maintenance

Electronics

stabilised PMT high voltage supply
dynamic 16 bit AD conversion for each channel
DSP Processor controlled
USB interface to spectrometer PC

Dimensions & Weight

width 60 cm
height 110 cm
depth 108 cm
weight about 300 kg

Power Supply

230V; 50/60 Hz; 1,5 kVA
200 W in stand-by mode

Environmental Conditions

operation temperature 10 – 40 ºC

Computer-Hardware

standard computer system
MS Windows® 7 operating system with custom specific regional and language settings

Software

OBLFwin spectrometer program
easy routine operation
freely configurable sample IDs
automatic repeatability control for measurements
automatic averaging
warning signal if calibration is exceeded
bad sample detection including dynamic measurement control (option)
as many analysis programs to customer specifications as required
individual analysis parameters for each program
multivariate calibration model (incl. line overlaps and matrix effects)
easy and simultaneous recalibration of a complete matrix
automatic program selection
type calibration and type measurement
spectrometer control sample measurements
average and standard deviation from chosen measurements
automatic reminder of regular recalibration
grade control by comparison with grade database settings
automatic display of of selected grade or material number
freely editable grade database
printout of certificates
analysis database
several statistical functions as display of control charts
automatic analysis data export
system check preceding each analyse
System diagnostics module
software supported maintenance tasks, for example entrance window cleanin
g