Upstream and Downstream Particle Counter
Category：Filter Cartridge Filtration Tester
Introduction
The A3 Upstream and Downstream Particle Counter is a precision instrument designed for evaluating the filtration performance of filter elements using multi-pass tests. It simultaneously measures particle concentrations at both the upstream and downstream sides of the test system to calculate filtration efficiency and filtration ratio (Beta ratio). The instrument integrates high-precision laser sensors and a precision sampling system to ensure fast, accurate, and repeatable results.
Application:
The A3 Particle Counter is used for:
(1) Multi-pass filtration performance testing of hydraulic, diesel, and gasoline filters.
(2) Determining filtration efficiency and contaminant holding capacity of filter elements.
(3) Evaluating filter system performance in research laboratories and quality inspection facilities.
Standards:
(1) GB/T 18853-2002 (ISO 16889:1999) – Hydraulic fluid power filters, multi-pass method for filter element evaluation
(2) ISO 19438 – Diesel fuel and gasoline filters, particle counting method for filtration efficiency and contaminant holding capacity
(3) ISO 11171 – Calibration of particle counters
Technical Parameters:
| Parameter | Specification |
|---|---|
| Particle counter model | Qinsun A3 |
| Sampling flow rate | 20 mL/min |
| Measurable particle size range | 4 μm(c) – 70 μm(c), calibrated per ISO 11171 |
| Measurement mode | Upstream, downstream, or simultaneous |
| Display | Color LCD touchscreen |
| Communication interface | RS232 serial port |
| Printer | Built-in for direct report output |
| Control software | Real-time communication with test bench, flexible test programming |
| Input method | Built-in Chinese input method for report annotations |
Features:
(1) Uses light-blocking (optical extinction) principle for fast detection, high accuracy, and strong anti-interference performance.
(2) Dual high-precision laser sensors enable simultaneous upstream and downstream measurements.
(3) Precision metering sampling system ensures constant flow rate and accurate sample control.
(4) Touchscreen interface allows intuitive operation and parameter setting.
(5) Supports flexible test configuration: counting time, interval time, total test duration.
(6) Initial mode verifies filter testing system performance before starting tests.
(7) Counting mode allows standalone particle counting for bench-top use.
(8) Direct printing of test reports and Beta ratio results.
(9) Remote control and data processing via RS232 connection to an industrial control computer.
(10) Compliant with ISO 16889:1999 (GB/T 18853-2002) and ISO 19438 standards.
Standard Configuration:
(1) A3 Particle Counter main unit
(2) Sampling sensors (upstream and downstream)
(3) Test bench control software
(4) Built-in printer
(5) Electrical control cabinet with secure sensor mounting
(6) User manual and operation instructions
Usage Instructions:
(1) Connect the particle counter to the test bench and ensure proper calibration.
(2) Select the measurement mode: upstream, downstream, or simultaneous.
(3) Set the counting time, interval, and total test duration in the control software.
(4) Start the test; the system will continuously measure particle concentrations and calculate filtration efficiency.
(5) View results on the touchscreen and print test reports as needed.
(6) Use the Initial mode periodically to verify sensor and system performance.
Maintenance Information:
(1) Regularly clean the sampling lines and sensor lenses to maintain accuracy.
(2) Calibrate sensors according to ISO 11171 at recommended intervals.
(3) Ensure RS232 connections and software interfaces are functioning correctly.
(4) Replace worn or damaged components as necessary to maintain precision.
FAQ
1. What is this product?
The A3 Particle Counter is an instrument for measuring particle concentrations upstream and downstream of a filter to evaluate filtration performance.
2. What is this product used for?
It is used to determine filtration efficiency, contaminant holding capacity, and Beta ratios of filter elements in hydraulic, diesel, and gasoline systems.
3. What is the working principle of this product?
It uses dual laser sensors based on the light-blocking (optical extinction) principle to detect particles, with a precision metering system to maintain a constant sampling flow.
4. Why is this product important?
It ensures filter elements meet efficiency and contamination retention requirements, critical for equipment protection and fluid cleanliness.
5. What industries is this product suitable for?
It is suitable for hydraulic systems, fuel filtration, automotive, aerospace, research laboratories, and quality inspection facilities.
