Application PTT-P50 portable particle counter is an upgraded version of P5. It adopts the counting principle of photoresist (shading) method specified by the International Hydraulic Standards Committee, and is specially used for rapid detection of oil pollution level on site. It has the advantages of small size, light weight, fast detection speed, high precision and good repeatability, and can work under high temperature and high pressure and other harsh conditions. The built-in micro water sensor and temperature sensor can detect the water content and oil temperature at the same time as the pollution degree detection. It is suitable for transformer oil (ie insulating oil), hydraulic oil, lubricating oil, synthetic oil and other oil, and can be widely used in aerospace, petrochemical, transportation, port, steel metallurgy, automobile manufacturing and other fields. Feature 1.Using the principle of photoresist (shading) method, using high-precision laser sensor, small size, high precision and stable performance. 2.Suitable for laboratory or field testing, and optional pressure reducing device for online high pressure measurement, real-time monitoring of particle contamination in oil systems. 3.External pressure chamber can be connected to form positive/negative pressure to realize detection of high viscosity samples and sample degassing. 4.Built-in data analysis system, which can display the real data of particle size of each channel and automatically determine the sample grade. 5.The pipeline is made of 316L and PTFE material, which can meet the detection of various organic solvents and oils. 6.With volume flushing and long flushing modes, it is convenient for users to use and maintain the equipment. 7.Built-in ISO4406, NAS1638, SAE4059 (integral and differential), GJB420A, GJB420B, ГOCT17216, GB/T14039 and other particle pollution level standards. 8.Built-in calibration function, can be calibrated according to GB/T21540, ISO4402, GB/T18854 and other standards. 9.Built-in data analysis system, which can automatically determine the sample grade according to the standard, with automatic data processing and printing functions. 10.Built-in micro water sensor and temperature sensor. 11.Bilingual in Chinese and English, one-key switch, with preset, input, modification, storage functions, convenient and fast operation. 12.Large storage, you can choose to store in the instrument internal or external storage device. 13.Embedded design, high-strength shell, easy to carry, suitable for all kinds of construction machinery. Technical indicators nLight source: semiconductor laser n Offline detection speed: 5-60mL/min n Offline detection of sample viscosity: ≤100cSt (optional pressure chamber when viscosity is high) nOn-line detection pressure: 0.1-0.6Mpa (the maximum pressure of the optional decompression device can reach 42Mpa) nParticle size range: 1-500μm nInterface: USB interface, power interface nData storage: Provide 1000 groups of data storage space, and support U disk storage nSensitivity: 0.8μm or 4μm (c) nLimited coincidence error: 40000 grains/ml nCounting volume: 1-999ml Counting accuracy: the error is less than ±10% nProtection class: IP67 nTest interval: 1 second - 24 hours nTest sample temperature: 0-80ºC nWater activity reference value: 0-1aw (±0.05aw) nWater content: 0-360ppm (±10%) nWorking temperature: -20-60ºC nPower supply: DC12V nWeight: 5.5kg nScreen size: 10.2 inches nBattery capacity: 8000mAh nVolume: 365×295×170mm