Particle Counters

A particle counter is a device that measures the number, size, and distribution of particles in a medium (air or liquid) using physical or optical principles. It can visually display the cleanliness level of an environment or fluid, helping users determine whether it meets relevant standards. With intuitive interfaces, digital displays, and reliable data logging capabilities, handheld particle counters are ideal for on-site air quality monitoring in electronics manufacturing, pharmaceutical production, food processing, and other controlled environments.

Advanced dust particle counters provide highly accurate and real-time particle size distribution analysis. SISCO dust particle counters provide features compact designs equipped with high-sensitivity particle sensors for detecting various particle sizes (e.g., 0.3μm, 0.5μm, 1.0μm, etc.). 

How does a particle counter work?

The dust particle counter contains a laser or white light source. When an air or liquid sample flows through the detection chamber, the light shines onto the particles passing through. When particles are illuminated by light, they produce scattered light (forward scattering or side scattering). The intensity of the scattered light is closely related to the particle size. The photoelectric sensor receives the scattered light signal and converts it into an electrical signal. The electronic system then determines the number and size distribution of particles based on the signal intensity. The dust particle measuring device outputs the detection results via a display screen or data interface, which can be used for cleanliness level assessment or quality monitoring.

What are the functions of the particle counter?

1. In high-cleanliness environments such as pharmaceutical plants, semiconductor plants, and operating rooms, it is used to monitor the concentration of airborne dust particles in real time to ensure that the environment meets standards.
2. In liquid production (such as water for injection, oil, and beverages), it is used to detect the presence of particulate contamination in the liquid, ensuring product purity and equipment safety.
3. Used to test the performance of air filtration systems or purification equipment and evaluate their filtration effectiveness.
4. Applied to scientific fields such as air pollution monitoring and aerosol research to analyze the sources and patterns of particulate matter.