QSG 750-II - 1 Pages

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Catalogue excerpts

Optical Emission Spectrometer Metal Analysis - Paschen-Runge line-up - temperature stabilised - automatic vacuum control - pump duty cycle < 5% - patented self cleaning - Gated Digital Source (GDS) - completley maintenance free - fully semiconductor-based & digital control - time-resolved spectroscopy - online processing of single spark intensities - elimination of line interferiences - spectral background reduction and optimized limits of detections - selectable integration windows for each installed channel - determination of soluble/insoluble components - free definable algorithms for the - Windows™ Software - automatic precision control & averaging - automatic reprofiling - type calibration - charge control - data module for statistic process control - dimensions approx. 119 x 130 x 90 cm (wxhxd) - permissible operating temp. +10 to +40°C - argon supply: 3 bar, Ar 4.8 or better spectrometer can also be called OBLF's flagship model. This single- or multi-matrix model is ideal for all applications demanding the lowest possible detection limits, the highest degree of reproducibility and additional metallurgical information about the analyte. The application spectrum goes from primary producers like steel mills or other smelteries through metal: processing companies right up to research institutes and universities. identical dimensions, it is also fitted with tried-and-tested hardware components like the temperature- stabilised 750 mm vacuum optics, the Gated Digital Source (GDS) technology with freely definable parameters and the patented, self-cleaning spark stand. An exhaust filter ensures consumed argon is purged. The easy accessibility of all key device parts simplifies service tasks that need to be performed by the user. The main difference to the other OBLF spectrometers lies in the data logging system, which is based on the GISS technology (Gated Integration of Single Sparks) developed by QBLF. In combination with logging and online processing of the single spark intensities of all measuring channels, time-resolved spectroscopy gives rise to many additional applications. Single spark spectrometry (or PDA pulse distributed analysis), for instance, provides critical information about the microscopic composition of the sample. In this respect, key words are the detection of inhomogeneous samples, differentiation between dissolved and aluminium in steel) as well as the inclusions. To ensure best possible use can be made of these options, the OBLFwin software not only includes all standard functions (materials control, automatic program selection, etc.), but also provides additional features that permit simple definition of parameters when a bad sample is detected or when analysing inclusions. All the single spark data can be made available for export to other computer systems. Time-resolved spectroscopy can reduce spectral interference and substantially improve the detection limits of many elements in comparison to standard spectrometers. This opens up completely new avenues when analysing pure metals. many functions are available for operation, as many applications have shown in the steel industry in particular. In such cases, sample handling is performed by a robot and the counter- electrode is cleaned by a special unit fitted to the spark stand. The measured values are automatically transferred to superordinate systems using a network connection. Integrated software modules control and monitor the functionality of the spectrometer. These functions also include analysing control and recalibration samples. Contact: OBLF Ges. fOr Elektronik & Feinwerktechnik mbH, Salinger Feld 44, D-58454 Witten, Tel. +49 2302 9879-0, Fax: +49 2302 9879-80, Email: info@oblf.de, Internet: www.oblf.eu

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