Spark direct reading spectrometer AES998

Instrument Introduction:
All electronic components and optical devices come from countries and regions such as the United States, France, and Taiwan;
The instrument has good long-term stability, and customers do not need to trace it. Global standardization is only required once a month or even longer;
There is a certain amount of accumulation in the process, which can be sharpened in ten years with high precision and extremely low failure rate;
Domestic 1 meter focal length, different gratings can be selected according to different customer needs;
Laboratory environmental requirements:
Temperature: 15-30 ℃
Relative humidity: 20-80%, no water vapor condensation
Power requirements: 220V, single-phase 50Hz, three wire 15A
Gas requirement: 99.996%, oxygen content not exceeding 5ppm, optional with argon purifier
Size: 1800 * 1050 * 1245 millimeters (length * width * height)
Instrument weight: 500KG
Optical system:
Optical structure: Paschen Runge structure;
Optical focal length: 998.8mm;
Spectral line range: 170-780nm (vacuum), 190-780nm (air);
Incident slit: 20um;
Exit slit: 35-100um;
Holographic grating: number of lines 2160gr/mm, dispersion rate 0.47nm/mm;
The number of lines is 1080gr/mm, and the dispersion rate is 0.93nm/mm (first level spectrum), 0.47nm/mm (second level spectrum), and 0.31nm/mm (third level spectrum);
The number of scribes is 1667gr/mm, dispersion: 0.6nm/mm (first-order spectrum), 0.3nm/mm (second-order spectrum), 0.2nm/mm (third-order spectrum);
Constant temperature, seismic resistance, vacuum spectroscope:
Adopting a special casting process, with low thermal expansion coefficient and stress relief treatment;
Constant temperature 38 ± 0.1 ℃, control accuracy up to 0.1 ℃
Equipped with seismic resistance devices;
Adopting a special vacuum chamber design, ensuring that there is no oil vapor in the chamber for 10 years, and ensuring that the instrument has a service life of over 10 years;
Hamamatsu Photomultiplier tube of Japan can be equipped with up to 48 channels at most;
The computer monitors the constant temperature and vacuum status of the instrument in real-time, ensuring that the instrument can work in a normal environment.
Excitation system:
The light source conditions are rich and can be selected according to different matrices and elements;
The dynamic flow rate of argon is 4L/Min, and the static flow rate is 0.5L/min, without the need for any flow meter to avoid leakage;
Electromagnetic shutter is used in the excitation program to avoid glare generated by detector detection and to avoid detecting strong light signals during pre ignition.
Measurement system:
Photomultiplier tube direct readout system, RG-59B/U coaxial cable is used for high-voltage circuit, and RG-174/U coaxial cable is used for signal output line, ensuring high-voltage safety and reducing signal loss;
A 48 channel synchronous data acquisition system based on FPGA, with all channels equipped with 16Bit analog-to-digital converters and a sampling rate of 200KSPS. All channels achieve high integration and precision voltage measurement and control systems;
Implement parallel monitoring automation system based on FPGA and parallel operation diagnosis function. The negative high-voltage module outputs -1000V, with a voltage adjustment rate of 10ppm and a temperature drift of 25ppm/℃; This module can be programmed to achieve multiple matrix compatible functions;
Spearman Original 1000V High Voltage Module from the United States.
Computer control system:
External computer control
Windows operating system
Keyboard and Mouse
Printer
Software:
WinSpark10 software package, equipped with a calibration module for working curves
Friendly interface based on Windows system
Visual Hardware Self Diagnosis and Maintenance Prompt System
Equipped with pre ignition curve, automatically optimizing pre ignition conditions
The system can store the traced spectrogram and calculate the center position of the spectrogram
The analysis results show that the average content, standard deviation and relative standard deviation values Autocorrection the interference between element spectral lines
The system automatically stores analysis results and can retrieve data