Online Particle Counter

Online Particle Counter

Skip to product information
Online Particle Counter
  • Online Particle Counter
Online Particle Counter
SKU:

Online Particle Counter

The QualiOPC™ 500 is a high-performance online particle counter designed for continuous, real-time fluid cleanliness evaluation. Engineered for plant-wide condition monitoring and predictive maintenance R&D, it delivers professional-grade contamination tracking across a 32-channel, Android-controlled platform without compromising on optical detection precision or global compliance testing standards.
  • Wide 1 To 500 Micrometer Range
  • Extensive Resolution Across 32 Configurable Channels
  • High Pressure Capability Reaching Up To 40 MPa
  • Intuitive 7 Inch Industrial Android Display

Get personalized pricing for your specific requirements

Oil Particle Counter Overview

The QualiOPC™ 500 operates as an inline contamination evaluation instrument built to measure solid particulate matter inside hydraulic fluids, mechanical lubricants, and circulating machinery oils across American production plants.

Utilizing a light-blocking shading setup, the hardware passes fluid past a focused semiconductor laser beam. Whenever dirt or metal flakes travel past this optical detection gate, they interrupt the beam. The system registers those light interruptions immediately and translates them into solid particle numbers and cleanliness grades.

Because the hardware completes testing while machinery remains in continuous motion, domestic plant crews obtain immediate condition assessments without stopping production lines. Having this direct stream of contamination levels assists you in spotting dirty fluid earlier, limiting unanticipated equipment shutdowns, and scheduling maintenance intervals with high accuracy.

Compliance & Standards

To align with standard criteria across American facilities, the hardware integrates common domestic aerospace and industrial fluid cleanliness codes:

  • SAE AS4059E and SAE AS4059F: Standard cleanliness grading scales recognized across US aerospace hydraulic systems and critical fluid installations.
  • NAS 1638: Familiar contamination reporting structure utilized by domestic fluid maintenance crews and aviation facilities.
  • SAE 749D: Historic cleanliness reference kept active for backward compatibility across legacy American equipment.

The online particle counter also accommodates broad international testing requirements to support export machinery and overseas fleets:

  • ISO 4406: Primary worldwide code for defining industrial fluid cleanliness by grouping solid particle counts into standard categories.
  • ISO 11171 and ISO 4402: Calibration criteria for liquid optical counters, covering modern and legacy calibration protocols.
  • ROCT 17216 (GOST 17216): Contamination classification reference utilized in international heavy equipment specifications.
  • JTS-005 and AETF1A: Additional pre-programmed classification codes embedded within the operating software.

Key Features

  • Multi-Channel Optical Sensor: The hardware delivers 32 independent measurement gates that you can program in 0.1 µm steps, tracking contaminants across a 1 µm to 500 µm span. This gives you exact granularity when evaluating fine silting versus large debris on demanding factory floors.
  • Dual Operational Configurations: Facilities can run the hydraulic oil particle counter in permanent inline operation or conduct standalone batch assessments. This setup gives plant testing staff the flexibility to inspect fixed machinery loops or evaluate fluid sample jars brought in for bench checks.
  • Adjustable High-Pressure Readiness: The unit handles baseline line pressures from 0.1 to 0.6 MPa, and connects with an available pressure-reducing module to process high-pressure lines up to 40 MPa without damaging internal plumbing.
  • Semiconductor Laser Core: Operating with counting repeatability held within an RSD of less than 2% and a coincidence limit extending to 40,000 particles/mL, the optical assembly minimizes measurement errors in heavily contaminated fluid lines.
  • Industrial Interface Display: An integrated 7-inch industrial display governed by an Android software setup provides clear curve adjustments, built-in calculation routines, and clear viewing across busy shop floors.
  • Information Export and Reporting: Built-in paper printing, internal database storage, and direct USB export let your staff archive cleanliness documentation, while RS485 and RS232 connections supply external communication to centralized facility supervisory software.
  • Optional Moisture Detection: An add-on moisture sensor integrates directly into the stream, enabling simultaneous observation of solid matter and fluid water saturation.

Product Applications & Operating Environments

Industrial operations throughout the United States rely on clean fluid circuits to avoid expensive component wear and unexpected shutdowns. The QualiOPC™ 500 is specified for real-time monitoring in harsh industrial environments, handling ambient operating temperatures from -20°C to 60°C and process fluid temperatures between 0°C and 80°C across rugged American job sites.

The instrument is frequently installed across critical fluid loops, including:

  • Hydraulic System Monitoring: Inline cleanliness control for production presses, high-pressure circuits, and mobile construction machinery to extend valve longevity.
  • Lubrication System Tracking: Constant tracking of rotating assets, such as heavy gearboxes, industrial compressor systems, and turbine bearings.
  • Manufacturing Process Control: Quality assurance for fluids in automotive assembly lines, heavy equipment manufacturing, and metal fabrication plants across the domestic manufacturing belt.
  • Energy and Resource Extraction: Fluid condition checks throughout mining sites, petroleum processing operations, chemical plants, and electrical generation stations, including utility wind turbine installations.
  • Testing Laboratories and Facilities: Benchtop fluid verification and spot checks in aerospace service stations, rail hubs, marine dry docks, and municipal water plants.

Online Particle Counter - QualiOPC™ 500 Technical Specification

Parameter QualiOPC™ 500
Product Name Online Particle Counter
Model QualiOPC™ 500
Light Source Semiconductor laser
Detection Method Light-blocking / shading method
Operation Mode Online or offline
Online Monitoring Interval 1 second to 24 hours
Online Test Pressure 0.1 to 0.6 MPa, optional pressure-reducing device up to 40 MPa
Sample Temperature 0°C to 80°C
Particle Size Range 1 μm to 500 μm
Sensitivity 1 μm (ISO 4402) or 4 μm(c) (ISO 11171 reference)
Detection Channels 32 channels, particle size can be set in 0.1 μm intervals
Sampling Volume 10 to 100 mL
Sampling Volume Relative Error Better than ±3%
Detection Speed 5 to 60 mL/min, default 25 mL/min
Cleaning Speed 5 to 60 mL/min
Resolution Better than 10%
Coincidence Error Limit 12,000 to 40,000 particles/mL
Counting Repeatability RSD < 2%
Particle Count Relative Error ±10%
Communication RS485 or RS232
Display / Control 7-inch industrial display, Android system
Operating Temperature -20°C to 60°C
Storage Temperature -30°C to 80°C
Dimensions 380 × 280 × 170 mm
Weight 5.5 kg
Voltage 110 to 240 VAC or 24 VDC
Optional Feature Water-content sensor

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.

🚚

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. 

Related Products