QSG750-Ⅱ型真空直读光谱仪参数指标

光谱仪在Paschen-Runge安装
    光栅焦距750毫米
    波长范围110-770 nm
    光学和读出电子温度稳定在±0.1°C，具有出色的长期稳定性
    自动计算机控制剖面
    昏迷矫正狭缝
    PMT类型根据各自的波长选择
    抗震性

Technical Data

Optics

• spectrometer in Paschen-Runge mounting

• Rowland circle diameter 750 mm

• wavelength range 110-770 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

• 23 bit AD conversion for each channel

• GISS technology (Gated Integration of Single Sparks)

• DSP processor controlled

• USB interface to spectrometer PC

Dimensions & Weight

• width 104 cm

• height 130 cm

• depth  90 cm

• weight about 460 kg

Power Supply

• 230V; 50/60 Hz; 1,5 kVA

• 500 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

• fomula editor for GISS calculations

• graphical single spark evaluation module

• online inclusion analysis calculations

• 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 cleaning