{"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","url":"https:\/\/qualitest.us\/products\/portable-liquid-and-oil-particle-counter","provider":"Qualitest USA LC","version":"1.0","type":"link"}