Optical Emission Spectrometer - QualiSpark 750/1000

OES Optical Emission Spectrometer – QualiSpark 750/1000

Features

• Original position single spark discharge analysis technology improves the precision and efficiency of the instrument
• Veneer-pattern lens frame cleans and reduces optical chamber pollution
• Real-time monitor system designed on the base of ARM9
• Solid-state adsorption trap that prevents optical chamber pollution resulting from oil/gas, improving long-term stability

Extra Features for QualiSpark 1000

• Green background light quickens the response speed and improves short-term precision
• Copper-base spark table, enhances heat emission and firmness.
• Full digital solid-state spark source with adjustable spark power and frequency, widely used with a variety of materials.
• Variable delay integration technology debases the background interference.
• Negative high-voltage power supply with high-precision PMT, which enables a technique that is continuously adjustable by software to improve its dynamic range
• Schematic diagram of spark photoelectric spectrometer.
• Vacuum light room made from special materials, with a very low coefficient of thermal expansion that makes it less affected by temperature fluctuation.
• New light room structure can easily test Li, Na, K, and other long wave elements, as well as extremely short wave elements or elements with strong interference such as N, P, S, B, and Sb.
• Interior fatigue backlight effectively reduces the impact of the dark current of photomultiplier on signal collection and improves SNR, extending the service life of photomultiplier.
• The newly designed coaxial spark table uses an internal gas circuit to decrease the consumption of argon, reduce the residual metal dust inside the spark table, and improve the stability of the instrument, which vastly improves the resulting data analysis.

Leading manufacturing technology

• Classical optical technology route, Paschen-Runge mounting
• Top-grade spark source technology: full digital SDA spark source with adjustable spark power and frequency.

Spark table

• Full digital solid-state spark source with adjustable spark power and frequency, widely used with a variety of materials.
• The constant temperature spark table uses a cyclic annular pattern of argon gas to ensure the stability of continued excitation and avoid adverse effects from water cold.
• Copper-base spark table is easy to dismount and clean.
• Accommodates particular fittings to analyze samples with multifarious shapes (such as cake-shaped, club-shaped, and line-shaped).
• The isolation valve with one lens can prevent pollution caused by routine maintenance, and the lens can easy be replaced.
• Unique design of discharge chamber ensures discharge working in the best condition.
• Exciting electrode is made of tungsten

Vacuum optical system

• Paschen-Runge mounting, Super Luminescent holographic grating.
• Focal length 500 mm, Grating with 2400 grooves/mm, Wavelength range 120-800nm.
• Dispersion: 1st order 0.55nm/mm, 2nd order 0.275nm/mm.
• Resolution:<=0.01nm
• Easy and efficient debugging through an entire slits band in the PMT optical system
• Imported nucleus components such as grating, CCD, and PMT.
• Vacuum system: vacuum pump and other vacuum controller.
• Casting optical chamber with low thermal expansion coefficient.
• The vacuum valve protects the optical chamber from oil.
• Vacuum filter

Spark source and Detecting system:

• Single Discharge Analysis (SDA).
• The world’s first multicenter synchronization improves the stability of the instrument.
• Top-grade delay integral technology fills the gaps, with a different channel corresponding to different integral initialization times.
• Interior constant temperature system, decreasing the interference from changes in the outside environment (temperature control system resolution: ±0.1°C).
• Spark source with adjustable spark power and frequency provides different sparking conditions for different kinds of materials.
• Easy maintenance, with integrated modularization circuit for long-distance diagnosis.
• Negative high voltage power supply controlled by software extends the analysis range (Resolution <0.05% of QualiSpark 750).

Negative high-voltage power supply with high-precision enables the unique continuously adjustable technique

• Resolution of the negative high voltage modular ≤0.01%.
• Independent power supply eliminates the mutual interference between different PMTs.
• Negative high-voltage can be adjusted by software to extend the analysis range.