{"title":"Oil Particle Counters","description":"\u003ch2\u003eOil Particle Counters – QualiOPC™ \u0026amp; ToronOPC™ Series\u003c\/h2\u003e\n\u003cp\u003eOil Particle Counter systems are designed to support laboratories and maintenance teams in measuring solid contamination levels in oils and other industrial fluids. These instruments enable accurate tracking of fluid cleanliness, early detection of abnormal wear, and reliable condition monitoring for critical equipment. The QualiOPC™ series includes desktop, portable, online, laboratory, and sensor-based configurations, giving flexibility for field service operations, plant monitoring environments, and laboratory analysis workflows.\u003c\/p\u003e\n\u003cp\u003eThis product range is suitable for a wide variety of fluids, including hydraulic oil, lubricating oil, transformer oil, turbine oil, gear oil, engine oil, aviation kerosene, water-based hydraulic fluids, organic liquids, and polymer solutions. The systems use light-blocking measurement technology, semiconductor laser detection, and integrated cleanliness coding features to deliver standardized contamination reporting aligned with recognized industry practices.\u003c\/p\u003e\n\u003cp\u003eThe QualiOPC™ and ToronOPC™ series represents a complete lineup of Oil Particle Counters designed for both industrial and laboratory use. The range includes desktop units for routine laboratory analysis, portable devices for field inspections, online particle counters for continuous system monitoring, laboratory-grade platforms for high-viscosity fluid testing, and sensor modules for seamless integration into automated monitoring systems.\u003c\/p\u003e\n\u003cp\u003eThese systems and sensor solutions are used to determine particle size distribution and particle concentration within fluid samples, helping users evaluate oil cleanliness levels, contamination severity, and equipment health trends over time. Depending on the configuration, the series supports offline bottle sampling, online real-time monitoring, high-pressure sampling options, vacuum-based sample handling, and compatibility with broader oil analysis and condition monitoring systems.\u003c\/p\u003e\n\u003ch2\u003eApplications of Oil Particle Counter Systems\u003c\/h2\u003e\n\u003ch3\u003eHydraulic and Lubricating Oil Monitoring\u003c\/h3\u003e\n\u003cp\u003eThe complete range is suitable for hydraulic and lubricating oil contamination measurement. It supports maintenance teams in monitoring fluid cleanliness levels, identifying wear-related particles at an early stage, and improving maintenance scheduling and fluid replacement planning.\u003c\/p\u003e\n\u003ch3\u003eTransformer and Insulating Oil Testing\u003c\/h3\u003e\n\u003cp\u003eSelected models in the series are designed for transformer and insulating oil evaluation. This makes the range highly relevant for utility providers and industrial operators that require accurate insight into dielectric fluid condition and contamination levels.\u003c\/p\u003e\n\u003ch3\u003eAerospace, Power Generation, Transportation, and Heavy Industry\u003c\/h3\u003e\n\u003cp\u003eThe system lineup is designed for use across military, aerospace, electric power, rail, marine, mining, heavy machinery, and transportation sectors. These industries rely on fluid cleanliness monitoring to reduce contamination-driven failures and improve long-term equipment reliability.\u003c\/p\u003e\n\u003ch3\u003eContinuous Online Contamination Monitoring\u003c\/h3\u003e\n\u003cp\u003eOnline configurations are suitable for real-time monitoring of particle contamination in hydraulic and lubrication systems. This allows continuous tracking of oil condition during operation, reducing dependency on periodic manual sampling.\u003c\/p\u003e\n\u003ch3\u003eLaboratory Analysis and System Integration\u003c\/h3\u003e\n\u003cp\u003eThe QualiOPC™ VES model is designed for laboratory-based particle contamination analysis, particularly for complex fluid types. In addition, the QualiOPC™ 60 sensor is built for integration with portable, online, and laboratory systems, extending the range into modular and system-level contamination monitoring solutions.\u003c\/p\u003e\n\u003ch2\u003eProduct Lineup\u003c\/h2\u003e\n\u003ctable class=\"table\" border=\"1\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eDetection Principle\u003c\/th\u003e\n\u003cth\u003eParticle Size Range\u003c\/th\u003e\n\u003cth\u003eChannels\u003c\/th\u003e\n\u003cth\u003eProduct Type\u003c\/th\u003e\n\u003cth\u003eMain Strength\u003c\/th\u003e\n\u003cth\u003eBest Fit For\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eQualiOP C™ 1000\u003c\/td\u003e\n\u003ctd\u003eLight-blocking\u003c\/td\u003e\n\u003ctd\u003e0.8–500 μm\u003c\/td\u003e\n\u003ctd\u003e32\u003c\/td\u003e\n\u003ctd\u003eDesktop\u003c\/td\u003e\n\u003ctd\u003eBroad lab capability with precise sampling and multiple standards support\u003c\/td\u003e\n\u003ctd\u003eRoutine laboratory oil cleanliness analysis\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eQualiOP C™ 400H\u003c\/td\u003e\n\u003ctd\u003eOptical light-blocking\u003c\/td\u003e\n\u003ctd\u003e1–500 μm\u003c\/td\u003e\n\u003ctd\u003e32\u003c\/td\u003e\n\u003ctd\u003ePortable\u003c\/td\u003e\n\u003ctd\u003ePortable particle counting plus water-content measurement\u003c\/td\u003e\n\u003ctd\u003eField and lab testing where oil moisture insight is also needed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eQualiOP C™ 400\u003c\/td\u003e\n\u003ctd\u003eOptical light-blocking\u003c\/td\u003e\n\u003ctd\u003e1–500 μm\u003c\/td\u003e\n\u003ctd\u003e32\u003c\/td\u003e\n\u003ctd\u003ePortable\u003c\/td\u003e\n\u003ctd\u003eMobile particle contamination analysis for oils and industrial fluids\u003c\/td\u003e\n\u003ctd\u003eOn-site service, plant checks, and mobile testing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eQualiOP C™ OL1\u003c\/td\u003e\n\u003ctd\u003eLight-blocking \/ shading\u003c\/td\u003e\n\u003ctd\u003e1–600 μm\u003c\/td\u003e\n\u003ctd\u003e8\u003c\/td\u003e\n\u003ctd\u003eOnline compact\u003c\/td\u003e\n\u003ctd\u003eCompact continuous monitoring with direct industrial communication\u003c\/td\u003e\n\u003ctd\u003eTight-space online installation and real-time cleanliness tracking\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eQualiOP C™ 500\u003c\/td\u003e\n\u003ctd\u003eLight-blocking \/ shading\u003c\/td\u003e\n\u003ctd\u003e1–500 μm\u003c\/td\u003e\n\u003ctd\u003e32\u003c\/td\u003e\n\u003ctd\u003eOnline display unit\u003c\/td\u003e\n\u003ctd\u003eContinuous monitoring with display, database, and offline\/online flexibility\u003c\/td\u003e\n\u003ctd\u003eInstalled monitoring with local interface and broader user access\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eQualiOP C™ VES\u003c\/td\u003e\n\u003ctd\u003eLight-blocking \/ shading\u003c\/td\u003e\n\u003ctd\u003e0.8–600 μm\u003c\/td\u003e\n\u003ctd\u003e8–64\u003c\/td\u003e\n\u003ctd\u003eLaboratory\u003c\/td\u003e\n\u003ctd\u003ePressure and vacuum-assisted sampling for difficult or higher-viscosity samples\u003c\/td\u003e\n\u003ctd\u003eLaboratory contamination analysis with advanced sample handling\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eQualiOP C™ 60\u003c\/td\u003e\n\u003ctd\u003eOptical light-blocking\u003c\/td\u003e\n\u003ctd\u003e1–500 μm\u003c\/td\u003e\n\u003ctd\u003eSystem-dependent\u003c\/td\u003e\n\u003ctd\u003eSensor module\u003c\/td\u003e\n\u003ctd\u003eCompact sensing core for integration into particle counter systems\u003c\/td\u003e\n\u003ctd\u003eOEM integration, portable systems, and inline platforms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eWhy Choose This Oil Particle Counter Series\u003c\/h2\u003e\n\u003cp\u003eThis product category offers multiple instrument configurations tailored to different operational needs, instead of relying on a single fixed solution. The desktop model is suited for routine laboratory testing, portable versions are designed for field inspections and on-site plant analysis, online models enable continuous monitoring of fluid systems, the VES configuration is intended for higher-viscosity and more challenging samples, and the sensor-based option supports OEM integration and system-level deployment.\u003c\/p\u003e\n\u003cp\u003eThe range also delivers flexibility in measurement and sampling methods. Depending on the selected model, users can work with offline bottle sampling, optional online measurement, continuous real-time monitoring, battery-powered portability, water-content measurement support, pressure and vacuum-assisted sampling techniques, and direct integration into broader particle counting and condition monitoring systems.\u003c\/p\u003e\n\u003cp\u003eOverall, this Oil Particle Counter series provides adaptable solutions for laboratory analysis, field-based inspections, and installed system monitoring. Whether the requirement is bench-top testing, mobile maintenance support, or continuous contamination tracking in operational equipment, the lineup offers configurations aligned with different workflow demands.\u003c\/p\u003e","products":[{"product_id":"oil-particle-counter","title":"Oil Particle Counter","description":"\u003ch2\u003eOil Particle Counter – QualiOPC™ 1000\u003c\/h2\u003e\n\u003cp\u003eQualiOPC™ 1000 is a desktop Oil Particle Counter designed for accurate fluid cleanliness evaluation across a wide range of oils and compatible liquids. It measures the size and concentration of insoluble solid particles to support contamination assessment, predictive maintenance planning, and fluid condition monitoring.\u003c\/p\u003e\n\u003cp\u003eBuilt around the light-blocking measurement principle, the system performs contamination analysis for hydraulic oil, lubricating oil, shale oil, transformer oil, turbine oil, gear oil, engine oil, aviation kerosene, water-based hydraulic fluids, organic liquids, and polymer solutions. The platform delivers fast and consistent particle analysis to help laboratories maintain reliable testing workflows.\u003c\/p\u003e\n\u003cp\u003eThis desktop Oil Particle Counter integrates a semiconductor laser with a broad particle-size detection range, enabling detailed cleanliness evaluation across different fluid conditions. Multiple reporting standards, Windows-based instrument control, and integrated data management features support efficient operation and streamlined reporting.\u003c\/p\u003e\n\u003cp\u003eDesigned for demanding environments across military, aerospace, power generation, and transportation sectors, QualiOPC™ 1000 supports fluid cleanliness programs where equipment performance and operational reliability are closely linked to contamination control.\u003c\/p\u003e\n\u003cp\u003eThe system combines a high-capacity particle counting sensor with a controlled sampling mechanism to generate repeatable measurement results across an extended particle range. An industrial computer with Windows supports instrument operation, calculations, internal database storage, printer connectivity, and USB-based data export for convenient record management.\u003c\/p\u003e\n\u003ch2\u003eOil Particle Counter - QualiOPC™ 1000 Applications\u003c\/h2\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0786\/1859\/1543\/files\/o1-1166380177.webp?v=1779378029\" alt=\"Oil Particle Counter\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHydraulic and Lubricating Oil Monitoring:\u003c\/strong\u003e QualiOPC™ 1000 supports contamination monitoring across hydraulic oil, lubricating oil, turbine oil, gear oil, engine oil, and other service fluids. By measuring particle concentration and distribution, it helps maintenance teams identify contamination trends earlier and make informed decisions regarding fluid condition and equipment performance.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTransformer and Insulating Oil Analysis:\u003c\/strong\u003e QualiOPC™ 1000 is also suitable for transformer and insulating oil cleanliness evaluation. Particle monitoring in these fluids supports improved reliability of electrical systems by helping identify contamination that may influence insulation performance and operating stability.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAerospace and Defense Fluid Cleanliness:\u003c\/strong\u003e The system supports fluid cleanliness programs in aerospace and defense applications where hydraulic fluids, lubricants, and fuel-related systems require controlled contamination levels to maintain operational reliability and extend service intervals.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePower and Transportation Industries:\u003c\/strong\u003e QualiOPC™ 1000 is suitable for power generation and transportation environments where fluid cleanliness is part of ongoing maintenance practices. Typical applications include turbine lubrication systems, rail and marine operations, and heavy-duty hydraulic and lubrication circuits requiring routine contamination tracking.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eOrganic Liquids and Polymer Solutions:\u003c\/strong\u003e In addition to conventional oil analysis, QualiOPC™ 1000 can measure insoluble particles in organic liquids and polymer solutions. This broadens application flexibility for laboratories and industrial environments handling specialty fluids and process-related liquid testing.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0786\/1859\/1543\/files\/o2-732530930.webp?v=1779378027\" alt=\"Oil Particle Counter\"\u003e\u003c\/p\u003e\n\u003ch2\u003eStandards Compliance\u003c\/h2\u003e\n\u003cp\u003eQualiOPC™ 1000 supports recognized international cleanliness and particle analysis standards to help laboratories maintain consistent testing methods and standardized reporting across different industries and fluid applications.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eISO 4402\u003c\/strong\u003e – Hydraulic fluid power standard covering calibration methods for automatic particle counting instruments used to measure particles suspended in liquids.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eISO 11171\u003c\/strong\u003e – Standard for calibration of automatic liquid particle counters to support accurate and repeatable contamination measurement.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eISO 4406\u003c\/strong\u003e – Hydraulic fluid cleanliness coding standard used to classify contamination levels based on particle counts.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eNAS 1638\u003c\/strong\u003e – Aerospace fluid cleanliness classification standard for evaluating particulate contamination in hydraulic systems.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eSAE AS4059E \/ SAE AS4059F \/ SAE AS4059FI\u003c\/strong\u003e – Aerospace cleanliness classification standards for reporting and controlling contamination levels in fluid systems.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eSAE ARP749D\u003c\/strong\u003e – Recommended aerospace practice focused on hydraulic fluid cleanliness control and contamination management procedures.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eGOST 17216\u003c\/strong\u003e – Particle contamination classification standard available as an optional reporting format for applicable testing requirements.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThese supported standards allow QualiOPC™ 1000 to align particle counting results with industry-recognized cleanliness classifications for maintenance, quality control, and condition monitoring programs.\u003c\/p\u003e\n\u003ch2\u003eOil Particle Counter – QualiOPC™ 1000 Key Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eMeasures particle size and concentration in liquids using the light-blocking measurement principle for reliable contamination analysis.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eCalibration methodology, particle detection, and measurement performance are aligned with ISO 4402 and ISO 11171 requirements.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eSupports integrated cleanliness classification and reporting formats including NAS 1638, ISO 4406 series, SAE AS4059, GOST 17216, SAE ARP749D, AETF1A, and combined NAS 1638 \/ ISO 4406 reporting options.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eFeatures a high-sensitivity, large-range particle counting sensor designed for accurate particle detection across varied fluid conditions.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eIncludes an industrial computer with a Windows operating system for instrument management, calculations, data analysis, and reporting functions.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eOffers optional calibration curve selections including ACFTD, ISOMTD, latex sphere, and GOST reference curves to support different testing requirements.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eTest results can be stored and exported through integrated printer output, internal software database management, and USB flash drive storage.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eProvides broad particle measurement capability with detection coverage from 0.8 μm to 500 μm, with reporting ranges of 1–100 μm under ISO 4402 or 4–70 μm(c) under ISO 11171 calibration.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eControlled sampling and cleaning processes support stable and repeatable testing performance across routine measurement workflows.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eIntegrated pressure and vacuum handling capabilities assist with sample preparation, support higher-viscosity fluids, and reduce air bubble interference during analysis.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0786\/1859\/1543\/files\/o3-1440292250.webp?v=1779378026\" alt=\"Oil Particle Counter\"\u003e\u003c\/p\u003e\n\u003ch2\u003eTheory and Method\u003c\/h2\u003e\n\u003cp\u003eQualiOPC™ 1000 operates using the light-blocking method, also known as the light obscuration principle, for measuring particle contamination in liquids. During analysis, particles suspended within the sample pass through a detection zone and partially interrupt a focused laser beam. The system captures these signal variations and converts them into particle size and particle count data as the sample moves through the measurement path.\u003c\/p\u003e\n\u003cp\u003eThis measurement principle is widely recognized for liquid particle analysis because it provides direct evaluation of contamination levels in oils and other compatible fluids. By analyzing the interaction between particles and the laser source, the instrument generates consistent cleanliness data across a broad particle range.\u003c\/p\u003e\n\u003cp\u003eQualiOPC™ 1000 combines this optical detection process with controlled sample handling, regulated flow conditions, and defined sample volumes to support stable and repeatable measurements. Integrated calibration options and support for recognized cleanliness classification standards allow results to be generated in reporting formats that align with laboratory procedures, maintenance programs, and industry-specific monitoring requirements.\u003c\/p\u003e\n\u003ch2\u003eOil Particle Counter - QualiOPC™ 1000 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™ 1000\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\u003eOil Particle Counter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eQualiOPC™ 1000\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 Principle\u003c\/td\u003e\n\u003ctd\u003eLight-blocking method\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDetection Range\u003c\/td\u003e\n\u003ctd\u003e0.8–500 μm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eParticle Size Range\u003c\/td\u003e\n\u003ctd\u003e1–100 μm (ISO 4402) or 4–70 μm(c) (ISO 11171)\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)\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 0.01 μm increments\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSample Volume\u003c\/td\u003e\n\u003ctd\u003e0.3–100 mL, 0.1 mL interval\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSample Volume Relative Error\u003c\/td\u003e\n\u003ctd\u003eBetter than ±0.5%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDetection Speed\u003c\/td\u003e\n\u003ctd\u003e5–60 mL\/min, default 15 mL\/min\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCleaning Speed\u003c\/td\u003e\n\u003ctd\u003e5–60 mL\/min, default 15 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\u003e12,000–40,000 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\u003eDetection Accuracy\u003c\/td\u003e\n\u003ctd\u003e±4.5 rating under ISO 4406 standard listing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eParticle Count Relative Error\u003c\/td\u003e\n\u003ctd\u003e±5%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSample Chamber Pressure\u003c\/td\u003e\n\u003ctd\u003eMaximum positive pressure 0.8 MPa; maximum vacuum -0.08 MPa\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSample Viscosity Range\u003c\/td\u003e\n\u003ctd\u003e\u0026lt;650 cSt\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSample Temperature\u003c\/td\u003e\n\u003ctd\u003e0–80°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd\u003e-20 to 60°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStorage Temperature\u003c\/td\u003e\n\u003ctd\u003e-30 to 80°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVoltage\u003c\/td\u003e\n\u003ctd\u003e220 V ±10%, 50 Hz (110V is also available)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower\u003c\/td\u003e\n\u003ctd\u003e180 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e355 × 400 × 620 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e19 kg\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":52178357551415,"sku":null,"price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0786\/1859\/1543\/files\/oil-particle-counter771516043.webp?v=1779377998"},{"product_id":"portable-liquid-and-oil-particle-counter","title":"Portable Liquid and Oil Particle Counter","description":"\u003ch2\u003ePortable Liquid and Oil Particle Counter – QualiOPC™ 400H\u003c\/h2\u003e\n\u003cp\u003eReliable oil cleanliness monitoring is critical when contamination data must be captured quickly, accurately, and outside traditional laboratory environments. The QualiOPC™ 400H is a portable oil particle counter engineered for both offline and online particle contamination analysis in oils and liquids using an optical light-blocking detection principle.\u003c\/p\u003e\n\u003cp\u003eIt is designed for a wide range of fluids, including hydraulic oil, lubricating oil, transformer insulating oil, turbine oil, gear oil, engine oil, aviation kerosene, water-based hydraulic fluids, organic liquids, and polymer solutions.\u003c\/p\u003e\n\u003cp\u003eBuilt for both field and laboratory environments, this portable system integrates a semiconductor laser, 32 configurable detection channels, onboard data processing, and battery-powered operation within a rugged carry-case design. It is well-suited for demanding applications in military, aerospace, power generation, and transportation sectors, where fluid cleanliness monitoring directly supports maintenance planning and equipment reliability.\u003c\/p\u003e\n\u003cp\u003eThe QualiOPC™ 400H delivers precise measurement of suspended particle size and concentration in service fluids, enabling users to assess contamination levels, detect irregular particle presence, and support preventive maintenance strategies. Its dual-mode capability allows both offline sampling and online measurement, making it ideal for spot inspections, maintenance validation, and routine quality control workflows.\u003c\/p\u003e\n\u003cp\u003eEngineered around the optical light-blocking method, the system features a high-stability semiconductor laser and a sensitive particle counting sensor. It also includes an industrial control platform, multiple calibration curve options, integrated data output functions, and a portable housing designed for easy transport and on-site operation. Built-in lithium battery support and optional accessories further enhance usability for higher-pressure and high-viscosity applications.\u003c\/p\u003e\n\u003ch2\u003ePortable Liquid and Oil Particle Counter – QualiOPC™ 400H Applications\u003c\/h2\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0786\/1859\/1543\/files\/ao2-1269312593.webp?v=1779378416\" alt=\"Portable Liquid and Oil Particle Counter\"\u003e\u003c\/p\u003e\n\u003cp\u003eThe QualiOPC™ 400H supports a wide range of contamination monitoring needs across industrial and field environments, delivering accurate particle analysis for multiple fluid types and operating conditions.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHydraulic and Lubricating Oil Monitoring:\u003c\/strong\u003e\u003cbr\u003eThe QualiOPC™ 400H is suitable for particle contamination analysis in hydraulic oil, lubricating oil, turbine oil, gear oil, and engine oil. It helps maintenance teams track fluid cleanliness, identify abnormal wear-related debris, and optimize service schedules based on real contamination trends.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTransformer and Insulating Oil Analysis:\u003c\/strong\u003e\u003cbr\u003eThis system is well-suited for portable contamination checks in insulating oils used within electrical power infrastructure. It supports routine diagnostics in transformers and related systems where fluid purity is essential for operational stability and asset protection.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAerospace, Military, and Transportation Applications:\u003c\/strong\u003e\u003cbr\u003eTypical use cases include contamination assessment of aviation hydraulic fluids, turbine oils, fuels, and lubricants used in mobile and heavy-duty equipment. These environments require strict particle control to maintain reliability, safety, and consistent performance.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWater-Containing Oil Monitoring:\u003c\/strong\u003e\u003cbr\u003eThe QualiOPC™ 400H also provides water-content measurement capability within a range of 10 ppm to 500 ppm. This adds value for users who require both portable particle counting and basic moisture evaluation in oil samples, supporting more complete fluid condition assessment.\u003c\/p\u003e\n\u003ch2\u003eStandards\u003c\/h2\u003e\n\u003cp\u003eThe QualiOPC™ 400H aligns with widely recognized international and industry standards for particle contamination measurement and fluid cleanliness classification, supporting consistent and comparable results across applications.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eISO 4402\u003c\/strong\u003e – Reference standard for hydraulic fluid particle counting and calibration procedures\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eISO 11171\u003c\/strong\u003e – Calibration and verification framework for automatic particle counting systems\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eISO 4406\u003c\/strong\u003e – Fluid cleanliness coding system for hydraulic and lubricating oil applications\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eNAS 1638\u003c\/strong\u003e – Contamination classification standard widely used in aerospace and precision hydraulic systems\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eSAE AS4059E \/ SAE AS4059F\u003c\/strong\u003e – Aerospace cleanliness classification standards for particulate contamination in fluids\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eROCT 17216\u003c\/strong\u003e – Standard for contamination level classification in technical fluids\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eJTS-005\u003c\/strong\u003e – Industrial reference standard for fluid cleanliness evaluation\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eSAE 749D\u003c\/strong\u003e – Specification related to particulate contamination assessment in hydraulic systems\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eAETF1A\u003c\/strong\u003e – Aerospace engineering task force reference for fluid cleanliness evaluation\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003ePortable Liquid and Oil Particle Counter – QualiOPC™ 400H Key Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eUtilizes the optical light-blocking detection principle for accurate measurement of particle size and concentration in oils and liquids.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eSupports both offline sampling and online monitoring, enabling flexible use in field inspections and in-line contamination tracking.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eSuitable for a broad range of fluids, including hydraulic oil, lubricating oil, transformer oil, turbine oil, gear oil, engine oil, aviation kerosene, water-based hydraulic fluids, organic liquids, and polymer solutions.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eEquipped with a semiconductor laser and a high-sensitivity large-particle counting sensor for stable and precise detection.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eOffers 32 detection channels with user-configurable particle size settings, allowing detailed and adaptable size distribution analysis.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eSupports multiple calibration curves, including ACFTD, ISOMTD, latex sphere, and GOST-based calibration methods.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eIntegrated with an industrial Windows-based control system for instrument operation, calculation processing, and data management.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eProvides multiple data handling options, including built-in printing, software-based database storage, USB export, and computer connectivity.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003ePortable enclosure with reinforced structural design for convenient transport and field deployment.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eOptional accessories enable high-pressure online measurement, high-viscosity sample handling, and sample degassing workflows.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003ePowered by a built-in lithium battery for extended portable operation.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eIncludes oil water-content measurement functionality with a measuring range of 10 ppm to 500 ppm, expanding its fluid condition assessment capability.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eTheory and Method\u003c\/h2\u003e\n\u003cp\u003eThe QualiOPC™ 400H operates on the optical light-blocking technique, also known as the shading or photoresist method. In this process, particles suspended in a fluid pass through a laser-illuminated sensing zone and partially obstruct the light beam. These signal variations are then processed to determine both particle size distribution and particle concentration.\u003c\/p\u003e\n\u003cp\u003eThis measurement approach is widely adopted in liquid contamination analysis because it enables direct detection of solid particles within oils and related fluids, providing reliable data for fluid cleanliness evaluation.\u003c\/p\u003e\n\u003cp\u003eThe system supports both offline bottle sampling and online measurement configurations. For online operation, it typically functions within a pressure range of 0.1 to 0.6 MPa. An optional pressure-reducing device allows measurement under higher-pressure conditions of up to 40 MPa.\u003c\/p\u003e\n\u003cp\u003eAdditional optional configurations include pressure and vacuum sample chambers designed for high-viscosity fluids, along with sample degassing support to improve measurement stability and accuracy in challenging fluid conditions.\u003c\/p\u003e\n\u003ch2\u003ePortable Liquid and Oil Particle Counter - QualiOPC™ 400H 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™ 400H\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\u003ePortable Liquid and Oil Particle Counter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eQualiOPC™ 400H\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDetection Principle\u003c\/td\u003e\n\u003ctd\u003eOptical light-blocking \/ shading method\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 Mode\u003c\/td\u003e\n\u003ctd\u003eOffline or online\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOnline Viscosity Range\u003c\/td\u003e\n\u003ctd\u003e\u0026lt; 100 cSt, optional positive-pressure sampler for higher viscosities\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOnline Pressure Range\u003c\/td\u003e\n\u003ctd\u003e0.1–0.6 MPa, optional up to 40 MPa with pressure-reducing device\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 or equivalent reference)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDetection Channels\u003c\/td\u003e\n\u003ctd\u003e32 channels, configurable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSample Volume\u003c\/td\u003e\n\u003ctd\u003e10–100 mL\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSample Volume Relative Error\u003c\/td\u003e\n\u003ctd\u003eBetter than ±2%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDetection Speed\u003c\/td\u003e\n\u003ctd\u003e5–60 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\u003e5–60 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\u003e12,000–40,000 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\u003eOil Water-Content Measuring Range\u003c\/td\u003e\n\u003ctd\u003e10 ppm–500 ppm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWater-Content Error\u003c\/td\u003e\n\u003ctd\u003e±5 ppm from 10–100 ppm; better than ±10% from 100–500 ppm\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\u003eVoltage\u003c\/td\u003e\n\u003ctd\u003e110–240 V, 50\/60 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBattery\u003c\/td\u003e\n\u003ctd\u003eBuilt-in lithium battery\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSize\u003c\/td\u003e\n\u003ctd\u003e380 × 310 × 205 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e8.6 kg\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":52178379800887,"sku":null,"price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0786\/1859\/1543\/files\/portable-liquid-and-oil-particle-counter1851532493.webp?v=1779378433"},{"product_id":"portable-particle-counter","title":"Portable Particle Counter","description":"\u003ch2\u003ePortable Particle Counter – QualiOPC™ 400\u003c\/h2\u003e\n\u003cp\u003eReliable oil contamination measurement is essential when fast, precise data is required outside laboratory conditions. The Portable Oil Particle Counter QualiOPC™ 400 is developed for both field and laboratory analysis of particulate contamination in oils and industrial fluids. It uses the optical light-blocking principle to detect and measure particles in liquid samples, supporting offline testing as well as optional online sampling for continuous monitoring needs.\u003c\/p\u003e\n\u003cp\u003eDesigned for maintenance teams and inspection workflows, this system helps deliver practical fluid cleanliness insights in workshops, production facilities, and remote service environments. It enables users to quickly assess contamination levels and make informed maintenance decisions based on real-time results.\u003c\/p\u003e\n\u003cp\u003eThe QualiOPC™ 400 is built with a semiconductor laser source, a 32-channel particle detection system, and a Windows-based control interface for smooth operation and data management. A built-in lithium battery supports mobility, making it suitable for on-site testing without dependence on constant power supply.\u003c\/p\u003e\n\u003cp\u003eThis portable Oil Particle Counter is suitable for a wide range of industrial fluids, including hydraulic oils, lubricants, transformer oils, turbine oils, aviation fluids, and other technical liquids where contamination control directly influences equipment reliability, performance stability, and maintenance planning.\u003c\/p\u003e\n\u003cp\u003eIts compact carry-case design enhances usability in field service operations, plant inspections, and mobile testing programs where fixed laboratory instruments are less practical. Combining optical detection technology, adjustable sampling control, battery-powered operation, and integrated data storage, the system enables users to generate and record results directly at the testing location with efficiency and consistency.\u003c\/p\u003e\n\u003ch2\u003ePortable Particle Counter – QualiOPC™ 400 Applications\u003c\/h2\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0786\/1859\/1543\/files\/ao3-1846059095.webp?v=1779380443\" alt=\"Portable Particle Counter\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHydraulic and Lubricating Oil Monitoring:\u003c\/strong\u003e\u003cbr\u003eQualiOPC™ 400 is used for contamination assessment in hydraulic and lubricating oils across industrial machinery. It supports maintenance teams in tracking fluid cleanliness, identifying abnormal wear debris, and making more informed decisions about service intervals and system upkeep.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAerospace and Military Fluid Analysis:\u003c\/strong\u003e\u003cbr\u003eCommon applications include inspection of hydraulic systems, lubricants, and fuel-related fluid pathways where strict particle control is essential for operational reliability and safe system performance.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eElectrical Power Industry:\u003c\/strong\u003e\u003cbr\u003eThe system is well-suited for transformer insulating oils and turbine lubrication systems within power generation and distribution environments. Portable particle measurement helps evaluate oil condition and supports condition-based maintenance strategies for critical infrastructure.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTransportation and Heavy Equipment:\u003c\/strong\u003e\u003cbr\u003eQualiOPC™ 400 is applicable in rail, marine, automotive, and heavy-duty machinery environments. Its portable configuration enables on-site contamination checks of hydraulic and lubrication systems, supporting fast diagnostics and reducing downtime in field operations.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0786\/1859\/1543\/files\/ao4-297556984.webp?v=1779380442\" alt=\"Portable Particle Counter\"\u003e\u003c\/p\u003e\n\u003ch2\u003eStandards\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eISO 4402\u003c\/strong\u003e – Reference standard for hydraulic fluid particle counting\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eISO 11171\u003c\/strong\u003e – Calibration and verification standard for automatic particle counters\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eISO 4406\u003c\/strong\u003e – Fluid cleanliness coding system used for contamination level classification\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eNAS 1638\u003c\/strong\u003e – Aerospace industry standard for fluid contamination grading\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eSAE AS4059E \/ SAE AS4059F\u003c\/strong\u003e – Aerospace cleanliness classification standards for particulate contamination control\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eROCT 17216\u003c\/strong\u003e – Standard for classification of oil contamination levels\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eJTS-005\u003c\/strong\u003e – Technical specification for contamination measurement and control applications\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eSAE 749D\u003c\/strong\u003e – Standard related to particulate contamination evaluation in fluid systems\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eAETF1A\u003c\/strong\u003e – Aerospace fluid cleanliness and contamination control reference standard\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003ePortable Particle Counter – QualiOPC™ 400 Key Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eOperates on the optical light-blocking principle for accurate particle size detection and counting in fluids.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eDesigned in a compact carry-case format for both field use and laboratory environments.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eSupports offline sampling with optional online sampling for continuous contamination monitoring.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eEquipped with a semiconductor laser and high-sensitivity particle counting sensor for stable performance.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eFeatures 32 detection channels with customizable particle size resolution at 0.1 μm intervals.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eMeasures particulate contamination across a range of 1 μm to 500 μm.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eIncludes a built-in lithium battery for mobile operation, along with AC power compatibility.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eRuns on a Windows-based industrial control system for instrument control, data processing, and analysis.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eSupports multiple calibration options, including ACFTD, ISOMTD, latex sphere, and GOST standards.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eProvides flexible data storage through onboard software, integrated printing, and USB export options.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eAdjustable sampling and cleaning flow control enables compatibility with different fluid types and testing conditions.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eOptional support for high-pressure and high-viscosity sampling extends usability across demanding applications.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eDurable enclosed housing design enhances portability and suitability for field deployment.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0786\/1859\/1543\/files\/ao5-1364557511.webp?v=1779380441\" alt=\"Portable Particle Counter\"\u003e\u003c\/p\u003e\n\u003ch2\u003eTheory and Method\u003c\/h2\u003e\n\u003cp\u003eQualiOPC™ 400 operates on the optical light-blocking principle, also known as the shading or photoresist method. In this approach, suspended particles flow through a defined sensing zone where they interrupt a laser beam. These interruptions generate signal variations that are processed by the system to determine both particle size and particle concentration. This technique is widely applied in contamination analysis of oils and industrial fluids, as it enables direct measurement of suspended solid particles within the sample.\u003c\/p\u003e\n\u003cp\u003eThe system is designed to support both offline bottle sampling and optional online measurement configurations. For online operation, it works within a standard pressure range of 0.1 to 0.6 MPa. With optional pressure-reducing components, it can handle higher-pressure environments of up to 40 MPa. In addition, the system can be configured for higher-viscosity fluid analysis through dedicated accessories, expanding its usability across a broader range of industrial applications.\u003c\/p\u003e\n\u003ch2\u003ePortable Particle Counter - QualiOPC™ 400 Technical Specification\u003c\/h2\u003e\n\u003ctable class=\"table\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eQualiOPC™ 400\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\u003ePortable Particle Counter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eQualiOPC™ 400\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDetection Principle\u003c\/td\u003e\n\u003ctd\u003eOptical light-blocking \/ shading method\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\u003eOperation Mode\u003c\/td\u003e\n\u003ctd\u003eOffline sampling; online sampling optional\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOnline Viscosity Range\u003c\/td\u003e\n\u003ctd\u003e\u0026lt;100 cSt, with optional accessory for higher viscosity\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOnline Pressure Range\u003c\/td\u003e\n\u003ctd\u003e0.1–0.6 MPa, optional up to 40 MPa with pressure-reducing device\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\u003e1–500 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)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDetection Channels\u003c\/td\u003e\n\u003ctd\u003e32 channels, 0.1 μm intervals\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSampling Volume\u003c\/td\u003e\n\u003ctd\u003e10–100 mL\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRelative Error of Sampling\u003c\/td\u003e\n\u003ctd\u003eBetter than ±2%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSampling Speed\u003c\/td\u003e\n\u003ctd\u003e5–60 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\u003e5–60 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\u003eOverlap \/ Coincidence Error Limit\u003c\/td\u003e\n\u003ctd\u003e12,000–40,000 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\u003eCounting Accuracy\u003c\/td\u003e\n\u003ctd\u003e±10%\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\u003eVoltage\u003c\/td\u003e\n\u003ctd\u003e110–240 V AC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBattery\u003c\/td\u003e\n\u003ctd\u003eBuilt-in lithium battery\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptional Features\u003c\/td\u003e\n\u003ctd\u003eHigh-pressure sampling support, calibration curve packages\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":52178557436215,"sku":null,"price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0786\/1859\/1543\/files\/portable-particle-counter387270939.webp?v=1779380429"},{"product_id":"online-particle-counter-qualiopc-ol1","title":"Online Particle Counter - QualiOPC™ OL1","description":"\u003ch2\u003eOnline Particle Counter – QualiOPC™ OL1\u003c\/h2\u003e\n\u003cp\u003eContinuous contamination monitoring is critical where fluid cleanliness directly impacts system reliability. The QualiOPC™ OL1 is an online particle counter designed for real-time measurement of particulate contamination in hydraulic oils, lubricating oils, and a wide range of industrial fluids. It uses semiconductor laser optics with the light-blocking detection principle to deliver consistent particle count data while systems remain in operation.\u003c\/p\u003e\n\u003cp\u003eBuilt for uninterrupted online monitoring, this model integrates smoothly into industrial condition monitoring setups. It provides real-time cleanliness grading along with stable, repeatable measurements, making it suitable for applications where ongoing insight is required rather than periodic sampling.\u003c\/p\u003e\n\u003cp\u003eThe QualiOPC™ OL1 supports automated continuous detection with configurable test intervals and live flow monitoring. Communication flexibility is supported through RS485 and RS232 interfaces, with optional 4–20 mA output for process integration. Data storage via USB allows convenient result logging, while an optional water activity sensor enables detection of micro-level moisture content in oil systems.\u003c\/p\u003e\n\u003cp\u003eDesigned as a compact solution for on-site continuous monitoring, the Online Particle Counter – QualiOPC™ OL1 tracks particle concentration and cleanliness trends in real time. This helps maintenance teams identify developing contamination issues earlier and respond quickly, improving operational stability without disrupting system performance.\u003c\/p\u003e\n\u003cp\u003eThe instrument integrates a semiconductor laser, high-precision sensing components, and a light-blocking measurement system within a durable aluminum housing. Its construction is optimized for demanding industrial environments, offering strong resistance to electrical interference, elevated temperatures, and pressure variations, making it suitable for harsh operating conditions where reliability is essential.\u003c\/p\u003e\n\u003ch2\u003eOnline Particle Counter – QualiOPC™ OL1 Applications\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eHydraulic Systems:\u003c\/strong\u003e\u003cbr\u003eQualiOPC™ OL1 is well-suited for continuous contamination monitoring in hydraulic circuits. It provides real-time particle data that supports maintenance planning, helps track contamination trends, and reduces the risk of wear-related damage to critical components.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eLubrication Monitoring:\u003c\/strong\u003e\u003cbr\u003eThe system is designed for use in lubrication networks such as turbine oils, compressor systems, gear oils, and bearing lubrication lines. It supports continuous oil cleanliness tracking, making it valuable for reliability-focused maintenance programs and equipment protection strategies.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIndustrial Manufacturing:\u003c\/strong\u003e\u003cbr\u003eIn production and process environments, QualiOPC™ OL1 delivers continuous online cleanliness information that supports quality control and maintenance decision-making. With multiple communication interfaces, it can be integrated into plant-wide monitoring and automation systems for streamlined data flow.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePower, Heavy Equipment, and Marine Applications:\u003c\/strong\u003e\u003cbr\u003eThe instrument is suitable for demanding operational environments across power generation, heavy machinery, transportation, and marine systems. It provides reliable contamination monitoring in conditions where equipment performance, system stability, and operational continuity are critical.\u003c\/p\u003e\n\u003ch2\u003eStandards\u003c\/h2\u003e\n\u003cp\u003eQualiOPC™ OL1 aligns with internationally recognized fluid cleanliness and particle contamination standards used in industrial, power, and aerospace applications.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eISO 4406\u003c\/strong\u003e – Defines fluid cleanliness coding based on particle count levels in hydraulic and lubrication systems.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eNAS 1638\u003c\/strong\u003e – Provides a classification system for contamination levels in aerospace and high-precision fluid systems.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eSAE AS4059\u003c\/strong\u003e – Establishes cleanliness classification for aerospace and industrial fluid applications based on particle distribution.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eISO 4402\u003c\/strong\u003e – Historical calibration reference standard for liquid automatic particle counters.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eISO 11171\u003c\/strong\u003e – Current calibration and verification standard for automatic particle counting instruments, ensuring measurement accuracy and traceability.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eROCT 17216\u003c\/strong\u003e – Russian standard for particle contamination classification in working fluids used across industrial systems.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eOnline Particle Counter – QualiOPC™ OL1 Key Features\u003c\/h2\u003e\n\u003cp\u003eQualiOPC™ OL1 is designed for continuous, real-time monitoring of particle contamination in hydraulic and lubrication systems, providing consistent insight into fluid cleanliness without interrupting operation.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eReal-time online monitoring enables continuous tracking of particle contamination in hydraulic and lubrication circuits.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eSemiconductor laser light source combined with a light-blocking detection method ensures fast response and stable particle measurement.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eHigh-precision particle sensor delivers strong resolution and reliable particle counting performance.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eAutomatic continuous detection with configurable sampling intervals for flexible monitoring cycles.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eReal-time flow monitoring provides visibility of fluid conditions as they pass through the sensing zone.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eMulti-standard cleanliness compatibility with configuration options to match application needs. Key reference standards include ISO 4406, NAS 1638, SAE AS4059, ISO 4402, ISO 11171, and ROCT 17216 for North American and international use cases.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eCalibration support aligned with ISO 4402 and ISO 11171 for measurement consistency and traceability.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eCommunication interfaces including RS485, RS232, and optional 4–20 mA output for integration with PLCs, industrial systems, and monitoring platforms.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eUSB-based data export and onboard storage for easy reporting and record keeping.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eOptional water activity sensor enables detection of micro-level moisture in oil systems.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eRugged aluminum housing provides strong resistance to electrical interference, temperature variations, and pressure fluctuations.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eCompact design allows installation in space-constrained online monitoring points across industrial systems.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eTheory and Method\u003c\/h2\u003e\n\u003cp\u003eQualiOPC™ OL1 operates using the light-blocking principle, also known as the shading method. In this approach, particles suspended in the fluid pass through a focused laser sensing zone and temporarily interrupt the light beam. These interruptions are converted into electrical signals, which are then processed to determine particle size distribution and total particle count.\u003c\/p\u003e\n\u003cp\u003eThis measurement principle is widely used in fluid cleanliness analysis due to its fast response time, strong immunity to external interference, consistent repeatability, and high level of measurement accuracy.\u003c\/p\u003e\n\u003cp\u003eQualiOPC™ OL1 is engineered for continuous online monitoring rather than batch sampling. It continuously analyzes flowing fluids, delivering real-time particle contamination data and cleanliness grading without interrupting system operation. Users can configure detection intervals according to application requirements, allowing flexible monitoring strategies.\u003c\/p\u003e\n\u003cp\u003eIn addition, the system includes real-time flow monitoring through the sensing channel, ensuring stable measurement conditions and improving data reliability during long-term operation in hydraulic and lubrication systems.\u003c\/p\u003e\n\u003ch2\u003eOnline Particle Counter - QualiOPC™ OL1 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™ OL1\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™ OL1\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 Principle\u003c\/td\u003e\n\u003ctd\u003eLight-blocking \/ shading method\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eParticle Size Range\u003c\/td\u003e\n\u003ctd\u003e1 μm–600 μm, depending on selected sensor\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)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCounting Volume\u003c\/td\u003e\n\u003ctd\u003e10 mL\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCounting Accuracy\u003c\/td\u003e\n\u003ctd\u003e±1 pollution level\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTest Sample Temperature\u003c\/td\u003e\n\u003ctd\u003e0°C to 80°C\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\u003eVoltage\u003c\/td\u003e\n\u003ctd\u003eDC 9 V or DC 12–36 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDetection Channels\u003c\/td\u003e\n\u003ctd\u003e8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFixed Particle Sizes\u003c\/td\u003e\n\u003ctd\u003e1, 2, 5, 10, 15, 25, 50, 100 μm or 4, 4.6, 6, 10, 14, 21, 38, 70 μm(c)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFlow Rate Range\u003c\/td\u003e\n\u003ctd\u003e10–50 mL\/min or 50–300 mL\/min\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOnline Test Pressure\u003c\/td\u003e\n\u003ctd\u003e0.2–10 MPa; optional pressure-reducing device up to 40 MPa\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eResult Storage\u003c\/td\u003e\n\u003ctd\u003eUSB interface to USB disk\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e100 × 75 × 70 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003eAbout 1 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCommunications\u003c\/td\u003e\n\u003ctd\u003eRS485 or RS232; optional 4–20 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptional Feature\u003c\/td\u003e\n\u003ctd\u003eWater activity sensor for micro-water content in oil\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":52178587615543,"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-counter-qualiopctm-ol1649020456.webp?v=1779380764"},{"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"},{"product_id":"oil-particle-counter-qualiopc-ves","title":"Oil Particle Counter - QualiOPC™ VES","description":"\u003ch2\u003eOil Particle Counter – QualiOPC™ VES\u003c\/h2\u003e\n\u003cp\u003eThe QualiOPC™ VES Oil Particle Counter is a high-precision laboratory solution designed for detailed particle contamination analysis across a wide range of oils and industrial liquids, including high-viscosity samples. It delivers reliable particle size distribution and contamination level measurements using the light-blocking principle, supporting analysis of hydraulic oil, lubricating oil, transformer insulating oil, gear oil, aviation kerosene, organic fluids, and polymer-based solutions.\u003c\/p\u003e\n\u003cp\u003eBuilt for advanced laboratory workflows, this system supports flexible sampling requirements and a wide range of international cleanliness standards. Its integrated pressurized and vacuum-assisted sampling system improves handling of challenging liquids by extracting high-viscosity samples and minimizing microbubble interference. The pressure sampling unit is capable of handling oils up to 400 cSt and includes a transparent viewing window for real-time sample observation.\u003c\/p\u003e\n\u003cp\u003eQualiOPC™ VES is engineered to accurately detect and quantify solid particle contamination in liquid samples. By utilizing light-blocking measurement technology, it determines particle size distribution and concentration, enabling users to assess fluid cleanliness, detect contamination anomalies, and support maintenance planning as well as quality control processes.\u003c\/p\u003e\n\u003cp\u003eDesigned for both standard oils and complex fluid types, the system enhances laboratory efficiency through improved sample handling and stable measurement performance. Its combined pressure and vacuum functions ensure smoother extraction of difficult samples while maintaining measurement accuracy across diverse testing conditions.\u003c\/p\u003e\n\u003ch2\u003eOil Particle Counter – QualiOPC™ VES Applications\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eHydraulic Fluid Analysis:\u003c\/strong\u003e\u003cbr\u003eThe QualiOPC™ VES Oil Particle Counter is well-suited for hydraulic fluid contamination assessment, enabling maintenance teams to identify wear-generated particles and monitor fluid cleanliness levels that can impact system performance and reliability.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eLubrication and Gear Oil Monitoring:\u003c\/strong\u003e\u003cbr\u003eThis system supports lubricating oil and gear oil analysis for continuous particulate contamination tracking. It helps evaluate oil condition over time, supports maintenance scheduling, and reduces the likelihood of mechanical wear in critical equipment.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTransformer and Power Equipment Oil Testing:\u003c\/strong\u003e\u003cbr\u003eDesigned to analyze transformer insulating oil and other dielectric fluids, the instrument supports cleanliness evaluation in electrical and power systems where particle contamination can affect insulation performance and operational safety.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAviation Fuel and Kerosene Quality Control:\u003c\/strong\u003e\u003cbr\u003eThe QualiOPC™ VES enables particle contamination testing in aviation fuel and kerosene quality-control processes, supporting consistent fuel cleanliness verification across handling and storage stages.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eOrganic Liquids and Polymer Solutions:\u003c\/strong\u003e\u003cbr\u003eThis system extends its analytical capability to organic liquids and polymer solutions, making it suitable for laboratories working with a broad range of industrial fluids beyond conventional oil applications.\u003c\/p\u003e\n\u003ch2\u003eStandards\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eNAS 1638:\u003c\/strong\u003e\u003cbr\u003eA legacy classification standard used to define particulate contamination levels in hydraulic fluids based on particle count ranges.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSAE AS4059F:\u003c\/strong\u003e\u003cbr\u003eAn SAE cleanliness classification standard that evaluates fluid contamination levels by categorizing particle size distribution and counts.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eISO 4402:\u003c\/strong\u003e\u003cbr\u003eAn earlier calibration standard used for automatic particle counters in liquid contamination measurement systems.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eISO 11171:\u003c\/strong\u003e\u003cbr\u003eA widely recognized calibration and verification standard for automatic particle counters used in liquid cleanliness and contamination analysis.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eGOST 17216:\u003c\/strong\u003e\u003cbr\u003eA Russian classification standard used to determine contamination levels in fluids based on measured particle content and distribution.\u003c\/p\u003e\n\u003ch2\u003eOil Particle Counter – QualiOPC™ VES Key Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eUtilizes the light-blocking (shading) principle for accurate liquid particle contamination analysis.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eSemiconductor laser sensor with a wide measurement range, stable signal output, low noise, and high resolution for precise detection.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eHigh-pressure syringe pump ensures consistent sampling performance with adjustable sampling volumes for different testing requirements.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eDual positive and negative pressure injection system assists in sample degassing and supports fluids with varying viscosity levels.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eBuilt-in pressure monitoring system automatically regulates air pressure to enhance operational safety and stability.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eIntegrated air purification system minimizes external contamination and reduces the risk of secondary sample pollution during testing.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eCompatible with multiple calibration curves and cleanliness classification standards, including NAS 1638, SAE AS4059F, ISO 4402, ISO 11171, and GOST 17216.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eCustom test method configuration with support for user-defined naming, grading, and workflow settings.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eSupports up to 64 simultaneous test channels for enhanced multi-parameter analysis capability.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eReal-time monitoring with automatic stop function when target particle concentration thresholds are reached.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eOptional sensor module integration for viscosity, moisture content, and temperature measurement alongside particle analysis.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eAdvanced particle sizing capability supporting analysis of nearly 10,000 particle size levels with customizable settings.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eCompatible with standard sampling bottles and sampling cups for flexible laboratory use.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e7-inch color touchscreen interface with fold-button design for simplified operation and improved usability.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eSupports manual, automatic, and semi-automatic calibration modes for flexible system setup.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eRS232 and RS485 communication ports enable seamless integration with PCs and laboratory management systems.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eLarge-capacity data storage with result printing and USB export for easy data handling and reporting.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eMulti-user account system supporting over five user profiles with configurable permission levels.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eOptional PC-VES pressure sampler equipped with a miniature air compressor, fast pressurization capability, strong pressure retention, support for oils up to 400 cSt, and a transparent viewing window for sample observation.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eTheory and Method\u003c\/h2\u003e\n\u003cp\u003eQualiOPC™ VES operates on the light-blocking principle, also referred to as the photoresist or shading-based particle counting method. In this process, particles suspended in the liquid pass through a defined sensing zone and interrupt a laser beam. These interruptions are converted into electrical signals, which are then processed to determine particle size distribution and overall contamination levels. This measurement approach is widely used in hydraulic and industrial fluid cleanliness analysis and aligns with established international particle counting practices.\u003c\/p\u003e\n\u003cp\u003eTo enhance measurement reliability across complex samples, the system integrates pressure and vacuum-assisted sampling technology. This combined mechanism improves the handling of high-viscosity liquids and supports efficient sample extraction. It also helps reduce microbubble interference, ensuring more stable and accurate readings during analysis. The sampling system is capable of handling oil viscosities up to 400 cSt, making it suitable for a broad range of laboratory and industrial fluid testing applications.\u003c\/p\u003e\n\u003ch2\u003eOil Particle Counter - QualiOPC™ VES 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™ VES\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eQualiOPC™ VES\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\u003eParticle Size Range\u003c\/td\u003e\n\u003ctd\u003e0.8–600 μm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCalibration Range Reference\u003c\/td\u003e\n\u003ctd\u003eACFTD 1–100 μm or ISO MTD 4–70 μm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDetection Channels\u003c\/td\u003e\n\u003ctd\u003e8–64 channels, optional\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSensitivity\u003c\/td\u003e\n\u003ctd\u003e0.8 μm (ISO 4402) \/ 3 μm (ISO 11171)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eResolution\u003c\/td\u003e\n\u003ctd\u003e\u0026lt;10%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRepeatability\u003c\/td\u003e\n\u003ctd\u003eRSD \u0026lt;2%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSample Viscosity\u003c\/td\u003e\n\u003ctd\u003e≤650 cSt, heating or dilution possible\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDisplay\u003c\/td\u003e\n\u003ctd\u003e7-inch color touch screen\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCommunications\u003c\/td\u003e\n\u003ctd\u003eRS232, RS485\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eData Output\u003c\/td\u003e\n\u003ctd\u003ePrinting and USB export\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCalibration Modes\u003c\/td\u003e\n\u003ctd\u003eManual, automatic, semi-automatic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptional Integrated Measurements\u003c\/td\u003e\n\u003ctd\u003eViscosity, moisture content, temperature\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003ePC-VES Pressure Sampler Details\u003c\/h3\u003e\n\u003ctable class=\"table\" border=\"1\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003ePC-VES Sampler\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Pressure\u003c\/td\u003e\n\u003ctd\u003e0–0.5 MPa\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVoltage\u003c\/td\u003e\n\u003ctd\u003e100–265 VAC or 24 VDC or optional external lithium battery\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAmbient Temperature\u003c\/td\u003e\n\u003ctd\u003e-20 to 60°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e290 × 190 × 270 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNet Weight\u003c\/td\u003e\n\u003ctd\u003e6.5 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupported Oil Viscosity\u003c\/td\u003e\n\u003ctd\u003eUp to 400 cSt\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":52178656690487,"sku":null,"price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0786\/1859\/1543\/files\/oil-particle-counter-qualiopctm-ves426651470.webp?v=1779381658"},{"product_id":"particle-counter-sensor","title":"Particle Counter Sensor","description":"\u003ch2\u003eParticle Counter Sensor – QualiOPC™ 60\u003c\/h2\u003e\n\u003cp\u003eThe performance of a particle counter sensor directly influences the precision of oil cleanliness and fluid contamination analysis systems. QualiOPC™ 60 is a compact optical sensing module designed for accurate particle sizing and counting in inline, portable, and laboratory-based monitoring solutions.\u003c\/p\u003e\n\u003cp\u003eQualiOPC™ 60 functions as a high-precision analytical sensor that detects solid particles suspended in liquids using the optical light-blocking principle. As particles pass through the sensing zone, variations in the light signal are converted into reliable particle size and count data, enabling consistent contamination measurement across industrial applications.\u003c\/p\u003e\n\u003cp\u003eThis sensor is engineered for integration within advanced oil and liquid particle monitoring systems used in predictive maintenance programs, fluid condition assessment, and quality assurance workflows. Its compact and durable construction makes it suitable for both mobile equipment and fixed installations, while supporting internationally recognized cleanliness and calibration standards such as ISO 4402 and ISO 11171.\u003c\/p\u003e\n\u003cp\u003eBuilt for demanding industrial environments, QualiOPC™ 60 serves as the core sensing component in portable particle counters, inline monitoring systems, and laboratory-grade contamination analyzers where accurate and repeatable particle detection is essential.\u003c\/p\u003e\n\u003cp\u003eThe device utilizes semiconductor laser technology combined with the light-blocking method to identify and measure suspended particles across a wide size range. Its cylindrical, space-efficient design supports seamless integration into modern contamination monitoring setups, ensuring stable performance and high measurement reliability.\u003c\/p\u003e\n\u003ch2\u003eParticle Counter Sensor – QualiOPC™ 60 Applications\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eHydraulic Oil Monitoring:\u003c\/strong\u003e\u003cbr\u003eQualiOPC™ 60 is well-suited for hydraulic systems where continuous monitoring of wear particles and contamination levels is essential for predictive maintenance strategies. It supports early detection of fluid degradation and helps maintain stable system performance.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eLubricating Oil Analysis:\u003c\/strong\u003e\u003cbr\u003eThe sensor integrates into systems designed to measure particulate contamination in industrial and mechanical lubricants. It enables accurate assessment of oil cleanliness and provides insight into overall lubricant condition and service life.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTransformer Insulating Oil Testing:\u003c\/strong\u003e\u003cbr\u003eThis application supports power generation and transmission equipment by monitoring dielectric fluid cleanliness. It helps ensure insulation reliability and reduces the risk of performance issues caused by contamination.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eGear, Engine, and Aviation Fuel Inspection:\u003c\/strong\u003e\u003cbr\u003eThese use cases focus on detecting and analyzing particle contamination in gear assemblies, engine systems, and aviation fuels. It supports verification of fluid purity, helping protect critical components from wear and efficiency loss.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eInline Industrial Fluid Monitoring:\u003c\/strong\u003e\u003cbr\u003eDesigned for compatibility with portable and online particle counter systems, QualiOPC™ 60 is also suitable for real-time industrial fluid condition monitoring. It enables continuous contamination tracking when integrated into advanced instrumentation platforms used for process control and system diagnostics.\u003c\/p\u003e\n\u003ch2\u003eStandards\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eISO 4402\u003c\/strong\u003e – A reference standard for fluid particle counting calibration, historically used in defining calibration procedures for optical particle measurement systems.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eISO 11171\u003c\/strong\u003e – An internationally recognized standard for calibration and verification of automatic particle counters, ensuring accuracy and consistency in particle size and count measurements.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eISO 4406\u003c\/strong\u003e – A widely used cleanliness coding standard that defines contamination levels in hydraulic and lubrication systems based on particle concentration.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNAS 1638\u003c\/strong\u003e – A classification system used in aerospace and industrial applications to evaluate and grade fluid contamination levels.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSAE AS4059\u003c\/strong\u003e – An aerospace and industrial standard that defines fluid cleanliness classes based on particle size distribution and concentration.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eGOST 17216 (ROCT 17216)\u003c\/strong\u003e – A particle contamination classification standard used for assessing cleanliness levels in technical fluids across industrial systems.\u003c\/p\u003e\n\u003ch2\u003eParticle Counter Sensor – QualiOPC™ 60 Key Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eOptical light-blocking technology for precise liquid particle sizing and counting.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eHigh-sensitivity optical design that delivers stable measurement performance and strong resolution for contamination detection.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eFine particle size channel resolution with a representative interval down to 0.1 µm, depending on system configuration.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eWide application compatibility for portable, inline, and laboratory particle counting systems.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eCompact and durable construction designed for long-term operation in field instruments and fixed industrial installations.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eCalibration support aligned with internationally recognized standards such as ISO 4402 and ISO 11171.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eSemiconductor laser light source for consistent and reliable optical performance.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eBroad particle measurement range from 1 µm to 500 µm.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eHigh repeatability with RSD below 2%, ensuring consistent measurement accuracy.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eAdjustable flow rate range from 5 to 60 mL\/min, with a standard operating rate of 25 mL\/min for measurement.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eTheory and Method\u003c\/h2\u003e\n\u003cp\u003eQualiOPC™ 60 operates on the optical light-blocking principle for liquid particle detection and analysis. When suspended particles pass through the sensing zone, they partially obstruct the laser beam, creating measurable signal variations. These signal changes are processed to determine particle size distribution and particle count data.\u003c\/p\u003e\n\u003cp\u003eThis measurement approach is widely used in fluid contamination monitoring due to its ability to directly evaluate solid particles suspended in oils and industrial liquids. It enables reliable assessment of fluid cleanliness in real time and supports consistent monitoring across different system types.\u003c\/p\u003e\n\u003cp\u003eDesigned as a high-sensitivity optical sensing component, QualiOPC™ 60 delivers stable operation, fine resolution, and repeatable measurement performance when integrated into portable, inline, or laboratory particle counting systems.\u003c\/p\u003e\n\u003ch2\u003eParticle Counter Sensor - QualiOPC™ 60 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™ 60\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eQualiOPC™ 60\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eParticle Counter Sensor\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 Principle\u003c\/td\u003e\n\u003ctd\u003eOptical light-blocking method\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) \/ 4 μm based on ISO 11171\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\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\u003eRepeatability\u003c\/td\u003e\n\u003ctd\u003eRSD \u0026lt; 2%\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\u003eLength\u003c\/td\u003e\n\u003ctd\u003e214 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Height\u003c\/td\u003e\n\u003ctd\u003e115 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Diameter\u003c\/td\u003e\n\u003ctd\u003e52 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTail Diameter\u003c\/td\u003e\n\u003ctd\u003e46 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting\u003c\/td\u003e\n\u003ctd\u003eMovable fixture, M4 screw mounting\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatibility\u003c\/td\u003e\n\u003ctd\u003ePortable and online particle counter systems\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCalibration Support\u003c\/td\u003e\n\u003ctd\u003eISO 4402, ISO 11171\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":52178688835895,"sku":null,"price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0786\/1859\/1543\/files\/particle-counter-sensor680606269.webp?v=1779382044"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0786\/1859\/1543\/collections\/oil-particle-counters1903227536.webp?v=1779364198","url":"https:\/\/qualitest.us\/es\/collections\/oil-particle-counters.oembed","provider":"Qualitest USA LC","version":"1.0","type":"link"}