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Direct reading spectrometer, also known as atomic emission spectrometer, is a device that uses substances under spark excitation. The detector detects the characteristic spectral lines of different elements to conduct qualitative and quantitative analysis of the elements.

Specification
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Item |
Specification |
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Application |
Metallurgy, foundry, machinery, scientific research, commodity inspection, automotive, petrochemical, shipbuilding, electric power, aviation, nuclear power, various analyses in metals and non-ferrous smelting, processing and recycling industries |
|
Analysis Matrix |
Fe base |
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Optical System |
Paschen-Runge Roland circular full spectrum vacuum optical system |
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Wavelength Range |
130~800 nm |
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Grating Focal Length |
401 mm |
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Detector |
High-performance CMOS array |
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Type Of Light Source |
Digital light source, high-energy pre-ignition technology (HEPS) |
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Discharge Frequency |
100-1000 Hz |
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Discharge current |
Max 400 A |
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Working Power |
AC220V 50/60Hz 1200W |
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Overall Dimension |
585×800×400 mm |
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Weight |
Approximately 85 Kg |
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Test Time |
Dependent on sample type, normally around 20 seconds |
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Type Of Electrode |
Tungsten injection electrode |
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Analysis Gap |
4 mm |
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Other Functions |
Vacuum, temperature, software automatic control, pressure, communication monitoring |
Main Features
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High-performance Optical System |
The arc flame generated during excitation is directly introduced into the vacuum optical chamber through the lens, realizing a straight optical path and effectively reducing optical path loss; High-precision CMOS elements enable accurate determination of non-metallic elements such as C, P, S and various metallic elements; Accurate measurement results with excellent repeatability and long-term stability. |
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Automatic Optical Path Calibration |
Automatic optical path calibration; the optical system automatically scans spectral lines to ensure accurate reception and eliminate tedious peak scanning; The instrument automatically recognizes specific spectral lines, compares them with originally stored lines, determines the drift position, and identifies the current pixel position of the analysis line for measurement. |
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Plug-in Lens Design |
The vacuum optical system adopts a unique entrance window with vacuum isolation, allowing operation while the vacuum system is in working state; The optical lens features a plug-in structure, enabling convenient and quick daily cleaning and maintenance. |
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Vacuum Chamber Integration |
Unique light chamber structure design minimizes the volume of the vacuum chamber, with evacuation time only 1/2 of ordinary spectrometers; Integrated design of the vacuum chamber and high-precision processing ensure long-lasting vacuum retention. |
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Vacuum Anti-Return Oil Technology |
Multi-stage isolated vacuum anti-return oil technology; vacuum differential pressure valve ensures complete isolation of the vacuum optical chamber from the vacuum when the vacuum pump is not working; A vacuum oil filter device is added to prevent oil from the vacuum pump entering the vacuum chamber, ensuring reliable operation of the CMOS detector and optical components in a stable environment. |
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Open Excitation Station |
Flexible sample holder design of the open-type excitation station meets the analysis needs of samples of various shapes and sizes on-site; With the use of a small sample holder, the minimum diameter of wire samples that can be analyzed reaches 3mm. |
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Jet Electrode Technology |
Adopts the world's most advanced jet electrode technology with tungsten electrodes; during excitation, an argon jet is formed around the electrode to prevent the excitation point from contacting external air, improving excitation accuracy; Unique argon gas path design significantly reduces argon consumption and lowers the user's operating costs. |
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Integrated Pneumatic Module |
The gas path system adopts a maintenance-free pneumatic module design, replacing solenoid valves and flow meters; Electrode self-purging function creates an optimal environment for excitation. |
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Digital Excitation Light Source |
Digital excitation light source with the world's most advanced plasma excitation technology; ultra-stable energy release excites samples in an argon environment; Full digital excitation pulses ensure ultra-high resolution and high stability output of the excited sample plasma; All parameters of the light source can be adjusted arbitrarily to meet the excitation requirements of various materials. |
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High-speed Data Acquisition |
Equipped with high-performance CMOS detection elements; each CMOS has independent ultra-high-speed data acquisition and analysis capabilities; Automatically monitors and controls the operating status of modules such as light chamber temperature, vacuum degree, argon pressure, light source, and excitation chamber in real time. |
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Ethernet Data Transmission |
Uses Ethernet card and TCP/IP protocol between the computer and the spectrometer to avoid electromagnetic interference and fiber aging; The computer and printer are completely external for easy upgrade and replacement; Remote monitoring of instrument status; Multi-channel control system to control and monitor all instrument parameters. |
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Prefabricated Working Curve |
Built-in standard sample library with different materials and grades; factory-prefabricated working curves for convenient installation, commissioning and timely put into production; Slight differences according to the analysis program corresponding to elements and materials; excitation and test parameters are pre-adjusted at the factory; optimal test conditions can be automatically selected based on the analysis program; Analysis range is included in the technical specifications (working curve can be drawn or extended for free according to standard samples provided by the user). |
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Fast Analysis |
High analysis speed, completing one analysis in only 20 seconds; For different analysis materials, the instrument achieves the best analysis effect in the shortest time by setting pre-burn time and measurement time. |
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Multi-matrix Analysis |
Optical path design adopts Paschen-Runge Roland circular structure; detectors are arranged alternately up and down to ensure reception of all spectral lines; Multi-matrix analysis can be realized without adding hardware facilities; Easy to add substrates, material types and analysis elements according to production needs (no hardware cost). |
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Software (Chinese & English System) |
Instrument operating software is fully compatible with Windows 7/8/10 systems; User-friendly operation; personnel without any spectrometer knowledge or operation experience can get started with simple training. |

Working principle
When the metal sample is excited by sparks on the spark plate, the ground-state atoms obtain sufficient energy under the action of the excitation light source. The outer electrons of these atoms transition from the ground state to a higher energy state (i.e., the excited state). Atoms in the excited state are unstable, and the outer electrons then transition from the higher energy level to the lower energy level or the ground state. The excess energy is emitted in the form of electromagnetic radiation, thus obtaining the emission spectrum. These mixed spectra are introduced into the light chamber through the light guiding system, and then dispersed by the grating. The characteristic spectral lines are detected using the detector. The data system can calculate the intensity of these element characteristic spectral lines to convert the corresponding element concentration.
Count the number of elements
The direct reading spectrometer can analyze approximately 70 elements (including metallic elements and non-metallic elements such as phosphorus, silicon, arsenic, carbon, boron, nitrogen, and oxygen). Under normal circumstances, it is used for the determination of components with a content of less than 1%, and the detection limit can reach parts per million.
Advantages of Direct Reading Spectrometer
Low cost, fast speed, simple operation, capable of measuring multiple elements, with a wide measurement range. In terms of measuring trace and impurity elements, it has very high accuracy.
Purpose of Direct Reading Spectrometer
It is widely used in casting, steel production, metal recycling and smelting, as well as in military, aerospace, power, chemical, universities and colleges, and commercial inspection and quality control units. It can analyze materials such as Fe, Al, Cu, Ni, Co, Ti, Zn, Mg, Pb, Sn, etc. as the base.

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