BT-9300Z Laser Particle Size Analyzer is a BT-9300S upgrade products, all of its operations under the control of all the computer automatically, with automatic testing, automatic optical alignment (in automatic), automatic feed, automatic drainage, auto remove bubbles, self-cleaning and other special features. In one sentence, that is, as long as the sample added to the cycle in the pool, you can get accurate test results. In addition, its software systems more powerful, more flexible, is a higher degree of automation, more convenient, better performance of the size distribution. It uses imported semiconductor lasers, high power, long life and good color; using a specially designed large scale integrated circuit manufacturing process by the large-size high-sensitivity photodetector array; by centrifugal circulating pump and the small sample cell into two kind of way; using full Mie theory and the free distribution model of data processing; using high-precision data transmission and processing circuit and a series of advanced technology and manufacturing processes, so that the instrument is accurate and reliable, test speed, repeatability , easy to operate and other prominent feature is the set of laser technology, computer technology, photonics technology, the new generation of particle size measurement in one instrument. Particularly suitable for universities, research institutes, laboratories of large enterprises use. 
 First, the performance index: 
 1. Test range :0.1-460μm. 
 2. Sampling method: Built-in circulation pump type. 
 3. Repeatability error: less than 1% (standard deviation of sample D50). 
 4. Accuracy Error: less than 1% (standard deviation of sample D50). 
 5. Measuring principle: Mie scattering theory. 
 6. Software operating environment: Windows2000, WindowsXP. 
 7. Interface: RS232 (serial port) or USB mode. 
 8. Photodetectors: 80, forward 68, finding eight, backward 4 
 9. Test time: 2-3min / times. 
 10. Instrument Weight 45kg, size 800 × 500 × 350mm, Voltage 220V. 
 Second, the test object: 
 1. All kinds of metallic powders: such as TSP, light calcium, talc, kaolin, graphite, wollastonite, brucite, barite, mica, bentonite, diatomite, clay and so on. 
 2. All kinds of metal powders: such as aluminum, zinc, molybdenum powder, tungsten powder, magnesium, copper and rare earth metal powder, alloy powder. 
 3. Other powders: such as catalysts, cement, abrasives, pharmaceuticals, pesticides, food, paints, dyes, phosphors, river sediment, ceramic materials, all kinds of emulsion and so on.