{"product_id":"online-particle-counter","title":"Online Particle Counter","description":"\u003ch2\u003eOnline Particle Counter – QualiOPC™ 500\u003c\/h2\u003e\n\u003cp\u003eThe QualiOPC™ 500 Oil Particle Counter is developed for continuous contamination tracking while machinery remains in operation. It enables real-time monitoring of particulate levels in hydraulic oils, lubricants, and a wide range of industrial fluids, allowing users to evaluate fluid cleanliness without stopping system performance.\u003c\/p\u003e\n\u003cp\u003eThis Online Particle Counter integrates online and offline testing functions with a light-blocking detection principle and a semiconductor laser light source for stable measurement accuracy. It supports continuous automated monitoring along with configurable cleanliness standards, communication interfaces, optional water-content detection, and multiple data storage options, making it suitable for plant-wide condition monitoring and predictive maintenance programs.\u003c\/p\u003e\n\u003cp\u003eDesigned for hydraulic and lubrication systems, the QualiOPC™ 500 delivers real-time particle count insights to support faster response to rising contamination levels. This helps reduce unexpected equipment downtime and improves overall maintenance scheduling and reliability of critical assets.\u003c\/p\u003e\n\u003cp\u003eThe system supports both online and offline usage, giving laboratories and industrial environments flexibility for continuous monitoring and spot verification checks. It features a large-format high-sensitivity particle sensor, a 7-inch industrial Android-based display, adjustable calibration curves, and multiple result management options including built-in printing, USB export, and database storage for long-term analysis.\u003c\/p\u003e\n\u003ch2\u003eOnline Particle Counter – QualiOPC™ 500 Applications\u003c\/h2\u003e\n\u003cp\u003eThe QualiOPC™ 500 is designed for a wide range of contamination monitoring applications across industrial and laboratory environments. It is widely used for hydraulic system monitoring, lubrication system analysis, machinery condition assessment, energy and power generation equipment, manufacturing process control, and heavy equipment maintenance operations.\u003c\/p\u003e\n\u003cp\u003eThis Online Particle Counter is applied across multiple sectors, including aerospace, rail systems, marine engineering, power generation, mining, petroleum refining, chemical processing, ports and shipping, metallurgy, automotive manufacturing, industrial equipment production, wind energy systems, and water treatment facilities.\u003c\/p\u003e\n\u003cp\u003eIt is well-suited for inline monitoring of hydraulic circuits, gearboxes, turbine lubrication systems, compressors, mobile machinery, and various production fluids. Continuous cleanliness monitoring in these systems helps maintain optimal performance, extend component lifespan, and reduce the risk of contamination-related failures and unplanned downtime.\u003c\/p\u003e\n\u003ch2\u003eStandards Supported\u003c\/h2\u003e\n\u003cp\u003eThe QualiOPC™ 500 Online Particle Counter supports multiple internationally recognized and industry-relevant cleanliness and calibration standards used for fluid contamination analysis.\u003c\/p\u003e\n\u003cp\u003eIt is compatible with ISO 4406, which defines fluid cleanliness coding based on particle concentration in hydraulic and lubrication oils. It also aligns with ISO 4402, an earlier calibration reference for automatic liquid particle counters, and ISO 11171, which provides calibration and verification procedures for particle counting instruments.\u003c\/p\u003e\n\u003cp\u003eFor aerospace and high-precision hydraulic applications, the system supports NAS 1638, a legacy classification system for particulate contamination, as well as SAE AS4059E and SAE AS4059F, which are widely used SAE standards for hydraulic fluid cleanliness classification in aerospace and industrial systems.\u003c\/p\u003e\n\u003cp\u003eIn addition, the instrument accommodates GOST 17216 (ROCT 17216), a Russian standard for fluid contamination grading, along with compatibility references such as JTS-005 and SAE 749D, which may appear in legacy systems or software for backward compatibility.\u003c\/p\u003e\n\u003cp\u003eThe system also includes support for specialized or less widely defined references such as AETF1A, ensuring broader usability across different monitoring setups and industry-specific configurations.\u003c\/p\u003e\n\u003ch2\u003eOnline Particle Counter – QualiOPC™ 500 Key Features\u003c\/h2\u003e\n\u003cp\u003eThe QualiOPC™ 500 Online Particle Counter is built for continuous contamination monitoring in hydraulic and lubrication systems, delivering reliable real-time insight into fluid cleanliness conditions.\u003c\/p\u003e\n\u003cp\u003eKey features include both online and offline testing capability, allowing flexible use in laboratory and field environments. It operates on a semiconductor laser light source combined with a light-blocking particle detection principle for stable and accurate particle measurement.\u003c\/p\u003e\n\u003cp\u003eThe system is equipped with a high-performance large-area particle counting sensor and supports continuous automatic monitoring with adjustable sampling intervals for different operational requirements.\u003c\/p\u003e\n\u003cp\u003eA 7-inch industrial-grade display with Android-based control provides an intuitive interface for calculation, configuration, and data visualization. The device includes built-in cleanliness standards with support for user-defined settings to meet specific application needs.\u003c\/p\u003e\n\u003cp\u003eIt supports multiple calibration options such as ACFTD, ISOMTD, latex sphere, and GOST references for enhanced measurement reliability across different standards.\u003c\/p\u003e\n\u003cp\u003eFor data handling, the system offers built-in printing, database storage via software, and USB export for easy record management and reporting. Communication options include RS485 and RS232 interfaces for integration with external monitoring and control systems.\u003c\/p\u003e\n\u003cp\u003eAn optional water-content sensor is available for extended fluid condition analysis, making the system suitable for demanding industrial environments where continuous reliability and contamination control are critical.\u003c\/p\u003e\n\u003ch2\u003eTheory and Method\u003c\/h2\u003e\n\u003cp\u003eThe QualiOPC™ 500 Online Particle Counter operates using the light-blocking principle, also known as the shading method, to determine both the size and concentration of solid particles suspended in liquids. When particles pass through the optical sensing zone, they interrupt a focused laser beam, and these variations in light intensity are converted into precise particle count and fluid cleanliness data.\u003c\/p\u003e\n\u003cp\u003eDesigned for continuous automatic online monitoring, the system enables real-time analysis of flowing oil within active hydraulic and lubrication circuits. The measurement interval can be adjusted according to operational requirements, allowing flexible monitoring strategies across different systems.\u003c\/p\u003e\n\u003cp\u003eThis approach supports uninterrupted cleanliness trending in working machinery, helping users track contamination changes over time instead of relying solely on periodic laboratory sampling. As a result, it provides a more consistent view of system health and fluid condition in critical industrial applications.\u003c\/p\u003e\n\u003ch2\u003eOnline Particle Counter - QualiOPC™ 500 Technical Specification\u003c\/h2\u003e\n\u003ctable class=\"table\" border=\"1\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eQualiOPC™ 500\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Name\u003c\/td\u003e\n\u003ctd\u003eOnline Particle Counter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eQualiOPC™ 500\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLight Source\u003c\/td\u003e\n\u003ctd\u003eSemiconductor laser\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDetection Method\u003c\/td\u003e\n\u003ctd\u003eLight-blocking \/ shading method\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperation Mode\u003c\/td\u003e\n\u003ctd\u003eOnline or offline\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOnline Monitoring Interval\u003c\/td\u003e\n\u003ctd\u003e1 second to 24 hours\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOnline Test Pressure\u003c\/td\u003e\n\u003ctd\u003e0.1 to 0.6 MPa, optional pressure-reducing device up to 40 MPa\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSample Temperature\u003c\/td\u003e\n\u003ctd\u003e0°C to 80°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eParticle Size Range\u003c\/td\u003e\n\u003ctd\u003e1 μm to 500 μm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSensitivity\u003c\/td\u003e\n\u003ctd\u003e1 μm (ISO 4402) or 4 μm(c) (ISO 11171 reference)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDetection Channels\u003c\/td\u003e\n\u003ctd\u003e32 channels, particle size can be set in 0.1 μm intervals\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSampling Volume\u003c\/td\u003e\n\u003ctd\u003e10 to 100 mL\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSampling Volume Relative Error\u003c\/td\u003e\n\u003ctd\u003eBetter than ±3%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDetection Speed\u003c\/td\u003e\n\u003ctd\u003e5 to 60 mL\/min, default 25 mL\/min\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCleaning Speed\u003c\/td\u003e\n\u003ctd\u003e5 to 60 mL\/min\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eResolution\u003c\/td\u003e\n\u003ctd\u003eBetter than 10%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCoincidence Error Limit\u003c\/td\u003e\n\u003ctd\u003e12,000 to 40,000 particles\/mL\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCounting Repeatability\u003c\/td\u003e\n\u003ctd\u003eRSD \u0026lt; 2%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eParticle Count Relative Error\u003c\/td\u003e\n\u003ctd\u003e±10%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCommunication\u003c\/td\u003e\n\u003ctd\u003eRS485 or RS232\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDisplay \/ Control\u003c\/td\u003e\n\u003ctd\u003e7-inch industrial display, Android system\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd\u003e-20°C to 60°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStorage Temperature\u003c\/td\u003e\n\u003ctd\u003e-30°C to 80°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e380 × 280 × 170 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e5.5 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVoltage\u003c\/td\u003e\n\u003ctd\u003e110 to 240 VAC or 24 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptional Feature\u003c\/td\u003e\n\u003ctd\u003eWater-content sensor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"Qualitest USA LC","offers":[{"title":"Default Title","offer_id":52178617336119,"sku":null,"price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0786\/1859\/1543\/files\/online-particle-counter2146785688.webp?v=1779381104","url":"https:\/\/qualitest.us\/products\/online-particle-counter","provider":"Qualitest USA LC","version":"1.0","type":"link"}