Oil Particle Counter

Oil Particle Counter

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Oil Particle Counter
  • Oil Particle Counter
Oil Particle Counter
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Oil Particle Counter

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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

Oil Particle Counter

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.

Oil Particle Counter

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.

Oil Particle Counter

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

Delivery time varies upon stock availability. Our standard dispatch and shipping times are generally within 1 week, however for some high demand items the delivery may be extended to 2-3 weeks. If you require these items urgently please contact us to check accurate stock availability and to organize faster shipping methods.

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Important Delivery Information

Delivery time varies upon stock availability. Our standard dispatch and shipping times are generally within 1 week, however for some high demand items the delivery may be extended to 2-3 weeks.

Need it urgently? Contact us here to check stock and organize faster shipping.

Orders:
Purchaser acknowledges that when placing an order on the Qualitest:

A. the placing of the order signifies the purchaser's assent to place said order at the Qualitest and that the order will be accepted by the successful processing of the order by Qualitest USA LC.
B. the purchaser typing their name when requested to do so by the Qualitest constitutes a signature to contract
C. the purchaser has the full authority to enter into the contract for such entity, and such grant of authority was indicated by purchaser by placement of the order through the Qualitest.
D. A minimum handling fee will be applied to the shipping total for all orders.

Shipping within the U.S.A.:

All orders will be shipped best way prepaid, via courier for smaller packages or via Freight forwarders for larger crates. A handling fee may be applicable to orders. Title to merchandise transfers to the purchaser upon delivery to the carrier. Loss or damage in transit is the responsibility of the purchaser. Qualitest USA will provide assistance with information needed for processing claims.

Shipping outside of the U.S.A.:

All orders will be shipped best way, via courier for smaller packages or via Freight forwarders for larger crates. A low handling fee may be applicable. Title to merchandise transfers to the purchaser upon delivery to the carrier. Loss or damage in transit is the responsibility of the purchaser. Qualitest USA will provide assistance with information needed for processing claims. Export fees, duties, taxes, and customs clearance are the responsibility of the purchaser.

Shipping insurance is not included, please contact our sales representatives if you need shipping insurance.

Partial shipment: Qualitest USA reserves the right to make partial shipments unless otherwise instructed by the purchaser.

Payment terms: All payments to Qualitest USA are to be made in U.S. Dollars (USD)

A. Credit Card - Qualitest USA will accept Visa, Master Card, AMEX or Discover. Required information from the purchaser is the credit card number, 3 digit security code, expiration date, card holder's name (exactly as it appears on the card), billing address, and valid telephone number for us to use in case of difficulty. Qualitest USA reserves the right to delay shipment pending verification of credit card validity.
B. Wire Transfer - Transfer must be made to Qualitest and confirmed for the full purchase amount (merchandise, handling and shipping) prior to shipment. Please contact us by phone at 1.877.884.TEST (8378)(outside U.S. +1.905.944.9825) or by fax at +1.954.697.8211 for bank information.
C. Open Account - Available to U.S.A. and Canadian customers only. Terms on open accounts are Net 30 days from date of shipment. Qualitest USA reserves the right to refuse shipment of new orders if any unpaid invoices are older than 30 days. Purchasers may apply for an open account by providing:

their bank information
3 credit references from other suppliers
Please allow 5 business days for confirmation of credit and creation of an open account.

Return Policy:

Qualitest USA may accept return of purchased merchandise within North America for refund or credit under the following conditions -

  • There may be an additional restocking fee charged to the transaction if items are already shipped to customer.
  • Goods must be returned to Qualitest USA within 5 days of the date of the receipt of the purchased goods.
  • All freight, duties, customs, and other related shipping charges for the returned merchandise are borne by the purchaser. Shipments made freight collect will be refused.
  • Merchandise must be returned properly packaged in brand new, salable condition, along with original packaging and all documentation, accessories and certificates.
  • Purchaser has confirmed return authorization directly with Qualitest.
  • Merchandise is regular catalog item. Special order items can not be returned.
  • All returned merchandise is subject to inspection by Qualitest. Qualitest reserves the right to refuse return of any merchandise that is used, damaged, or not part of the current published price list. In the case Qualitest does not accept the returned merchandise, reasonable attempts will be made to notify the Buyer and the merchandise will be returned to Buyer as they were received by Qualitest. Damaged merchandise that can be restored to original condition and thus accepted for return will be evaluated on an individual basis. The purchaser will be advised of additional expenses for the repair and restoration of the returned item. After approval, these expenses will be charged to the purchaser in addition to the restocking fee.


Change of Terms:

The acceptance of any order by Qualitest USA is subject to purchaser's assent to all of the terms and conditions set forth herein. Purchaser's assent to these terms and conditions shall be presumed from the purchaser's placement of an order through the Qualitest. Any and all other terms and conditions are expressly rejected, and no addition or modification of terms and conditions shall be binding without the prior agreement of Qualitest USA in writing.

Complete Agreement:

The terms and conditions in the Qualitest web site, incorporated herein by reference, including forms, acknowledgements, quotations, invoices and sales terms and conditions constitute the entire and exclusive agreement between the purchaser and Qualitest USA LC.

Information:

Qualitest USA makes every effort to insure the accuracy of the product information displayed on its web sites, but makes no warranties, expressed or implied, as to the accuracy of the data portrayed on the web sites. Qualitest USA reserves the right to change product information, including pricing information at any time without notice. 

Trademarks and Copyrights:

The WorldofTest.com Qualitest contains trademarked product names. Product names are not to be reproduced or used in any fashion by any party other than Qualitest without the express written consent of Qualitest International Inc.. All pictures, descriptions, and other content of this web site are copyrighted by Qualitest USA and may not be used without the express written permission of Qualitest USA. Purchaser acknowledges that they have no right, title, or interest in the trademarks or copyrights in the products, and purchaser covenants that it will take no action to register or otherwise interfere with such rights. Please contact us with any requests for permission or questions about our trademarks. 

Warranty Disclaimer:

No warranty or affirmation of fact, express or implied, other than expressly set forth herein is made or authorized by Qualitest USA. Qualitest USA disclaims any and all liability for product defect claims. Qualitest USA does not express or imply a warranty that any product on the web site(s) is fit for a particular purpose. Qualitest USA honors the product warranty as published and made available by Qualitest USA. Warranty claims for products not manufactured by Qualitest are the responsibility of the manufacturer. Qualitest USA will always make its best good faith effort to resolve warranty claims. 


Force Majeure:

Qualitest USA shall not be liable for any delay in or impairment of performance resulting in whole or in part from Acts of God, service interruptions, labor disruptions, insurrections, governmental decrees or controls, war risks, severe weather, supplies or raw materials, inability to procure or ship products, inability to obtain permits and/or licenses, or any other circumstances or causes beyond the control of Qualitest USA in the conduct of its business. 

Qualitest USA Privacy Policy 

I. What legal provisions govern our data processing practices? How and from where (internal/external sources) is personal data acquired? What are the rights of the user (web site visitor/registered customer)? 

1. General
As a general principle, no personal details need to be provided when visiting our Internet site. Data made available to us by you is treated in strict confidence and in accordance with the provisions of the Federal Data Protection Act. With a few exceptions (see point 2 below), our web server only registers non-personal (anonymous) data concerning the use of our site. Specifically, the log files of our web server, as a general rule, only contain the user's IP address, the last page visited by the user, the browser used, date, time and the file requested. This anonymous data, however, does not permit conclusions to be drawn about the individual users, and merely serves to prepare statistics on the use of our Internet site for the purpose of its improvement. At the same time, great importance is placed on ensuring that usage data is not linked with personal data. 

2. Personal data

Person-related data (personal data) is only used if the newsletter is ordered (by email), product(s) is (are) ordered, or to supply product information. We undertake to use the personal data entrusted to us only for the purposes stated. Purchase history is retained for assistance with future customer needs. 

II. What security measures are used to protect personal data? What are the user's options for processing personal data? 

3. Technical measures

Databases are optimally protected against third party access, loss, misuse and falsification through the use of appropriate technical means. In order to determine the popularity of individual topic areas, cookies are used in those sections. These text files are stored on your hard disk and facilitate your use of our Internet site. Thanks to these cookies, there is no need for specific registration each time you visit a section requiring registration, and we can supply you with the personalized contents you request. 

It is for you to decide whether you want to work with cookies and, if so, which kind (permanently stored on the hard disk or only placed for the time of the browser activity). However, we draw your attention to the fact that access to fields requiring registration is only possible with activated cookies. 

III. What data is communicated to third parties and for what purposes? 

4. Communication of personal data

Personal data entrusted to us by you is not communicated, leased or sold to third parties. 

IV. Which department answers questions about the processing of personal data? 

5. Contact

In the light of the rapid technical developments in connection with the Internet, we make every effort to constantly improve our Internet site and technical precautions, including those connected with data protection. We will keep you suitably informed about such measures. Any changes will be published here. Further information is available at any time by contacting Qualitest USA.

Disclaimer of liability Qualitest USA shall not be liable for direct, indirect or consequential losses resulting from or in connection with access to, use of or queries to the Qualitest web site or its links with other web sites, even if Qualitest USA has previously been informed of the possibility of such losses. No guarantee is provided as to the accuracy of the information disseminated via the Qualitest USA web site. In addition, Qualitest USA guarantees neither the reliability nor the completeness of the information contained on its web site. The information made available on the Qualitest and WorldofTest.com web site may be amended at any time without prior notice. In particular, Qualitest USA shall not be liable for losses caused by transmission errors, technical faults and interruptions, breakdowns or an unlawful interference with the user's data processing system or the generally accessible systems and transmission networks. Nor shall Qualitest USA be liable for losses resulting from breakdowns, interruptions or overloads occurring to any data processing systems. If certain links are activated on the Qualitest and WorldofTest.com web site, the user may under certain circumstances leave the Qualitest web site. Qualitest USA assumes no responsibility for the contents, products or services offered or other information or offers contained on these linked web sites. 

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