Oil Particle Counter

Oil Particle Counter – QualiOPC™ 1000

QualiOPC™ 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.

Built 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.

This 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.

Designed 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.

The 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.

Oil Particle Counter - QualiOPC™ 1000 Applications

Hydraulic and Lubricating Oil Monitoring: 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.

Transformer and Insulating Oil Analysis: 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.

Aerospace and Defense Fluid Cleanliness: 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.

Power and Transportation Industries: 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.

Organic Liquids and Polymer Solutions: 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.

Standards Compliance

QualiOPC™ 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.

• ISO 4402 – Hydraulic fluid power standard covering calibration methods for automatic particle counting instruments used to measure particles suspended in liquids.

• ISO 11171 – Standard for calibration of automatic liquid particle counters to support accurate and repeatable contamination measurement.

• ISO 4406 – Hydraulic fluid cleanliness coding standard used to classify contamination levels based on particle counts.

• NAS 1638 – Aerospace fluid cleanliness classification standard for evaluating particulate contamination in hydraulic systems.

• SAE AS4059E / SAE AS4059F / SAE AS4059FI – Aerospace cleanliness classification standards for reporting and controlling contamination levels in fluid systems.

• SAE ARP749D – Recommended aerospace practice focused on hydraulic fluid cleanliness control and contamination management procedures.

• GOST 17216 – Particle contamination classification standard available as an optional reporting format for applicable testing requirements.

These supported standards allow QualiOPC™ 1000 to align particle counting results with industry-recognized cleanliness classifications for maintenance, quality control, and condition monitoring programs.

Oil Particle Counter – QualiOPC™ 1000 Key Features

• Measures particle size and concentration in liquids using the light-blocking measurement principle for reliable contamination analysis.

• Calibration methodology, particle detection, and measurement performance are aligned with ISO 4402 and ISO 11171 requirements.

• Supports 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.

• Features a high-sensitivity, large-range particle counting sensor designed for accurate particle detection across varied fluid conditions.

• Includes an industrial computer with a Windows operating system for instrument management, calculations, data analysis, and reporting functions.

• Offers optional calibration curve selections including ACFTD, ISOMTD, latex sphere, and GOST reference curves to support different testing requirements.

• Test results can be stored and exported through integrated printer output, internal software database management, and USB flash drive storage.

• Provides 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.

• Controlled sampling and cleaning processes support stable and repeatable testing performance across routine measurement workflows.

• Integrated pressure and vacuum handling capabilities assist with sample preparation, support higher-viscosity fluids, and reduce air bubble interference during analysis.

Theory and Method

QualiOPC™ 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.

This 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.

QualiOPC™ 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.

Oil Particle Counter - QualiOPC™ 1000 Technical Specification

Parameter	QualiOPC™ 1000
Product Name	Oil Particle Counter
Model	QualiOPC™ 1000
Light Source	Semiconductor laser
Detection Principle	Light-blocking method
Detection Range	0.8–500 μm
Particle Size Range	1–100 μm (ISO 4402) or 4–70 μm(c) (ISO 11171)
Sensitivity	1 μm (ISO 4402) or 4 μm(c)
Detection Channels	32 channels, particle size can be set in 0.01 μm increments
Sample Volume	0.3–100 mL, 0.1 mL interval
Sample Volume Relative Error	Better than ±0.5%
Detection Speed	5–60 mL/min, default 15 mL/min
Cleaning Speed	5–60 mL/min, default 15 mL/min
Resolution	Better than 10%
Coincidence Error Limit	12,000–40,000 particles/mL
Counting Repeatability	RSD < 2%
Detection Accuracy	±4.5 rating under ISO 4406 standard listing
Particle Count Relative Error	±5%
Sample Chamber Pressure	Maximum positive pressure 0.8 MPa; maximum vacuum -0.08 MPa
Sample Viscosity Range	<650 cSt
Sample Temperature	0–80°C
Operating Temperature	-20 to 60°C
Storage Temperature	-30 to 80°C
Voltage	220 V ±10%, 50 Hz (110V is also available)
Power	180 W
Dimensions	355 × 400 × 620 mm
Weight	19 kg