Portable air particle counterIt is a portable device used for rapid and accurate measurement of particulate matter concentration and particle size distribution in the air, widely used in clean room monitoring, environmental air quality assessment, air purification equipment testing, and industrial pollution monitoring.
This device works based on the principle of laser scattering: the laser source emits light to irradiate particles in the air, and the scattered light from the particles is captured by a photodetector and converted into electrical signals. After processing, the particle quantity, size distribution, and concentration data are obtained. Its core advantages lie in high precision and portability - using semiconductor lasers can accurately detect particles within the range of 0.3 μ m to 10 μ m, and some models even support 0.1 μ m level detection; Lightweight design (usually weighing between 1-12 kilograms) combined with ergonomic structure, making it easy to hold or move to different scenes for sampling.
Portable air particle counterThe components of:
1. Sampling system
Sampling head (probe)
Built in airflow inlet for inhaling particulate matter in the air.
Some models are equipped with replaceable filter cartridges (such as PTFE or cellulose materials) to prevent large particles or liquids from clogging the sensor.
Air pump (sampling pump)
Provide stable airflow, with a flow rate typically ranging from 0.1 to 5 L/min (adjustable), in compliance with ISO 21501 standard.
Low noise design to avoid interference with clean environments.
flow sensor
Real time monitoring of airflow velocity to ensure a constant sampling flow rate (e.g. 2.83 L/min).
Automatically compensate for flow fluctuations caused by filter blockage or pressure changes.
2. Detection system
Optical sensor (core component)
Laser diode/LED light source: emits a beam of light to irradiate particles, and determines particle size by scattering light intensity.
Photodetector: Receive scattered light signals and convert them into electrical signals (such as multi ring photodiodes to distinguish different particle sizes).
Sheath structure (high-D model): wraps the sample airflow, reduces particle overlap interference, and improves accuracy.
Particle size classification channel
Typical channels: 0.3 μ m, 0.5 μ m, 1 μ m, 3 μ m, 5 μ m, 10 μ m (expandable to 6-8 channels).
Map the scattered light signal to the corresponding particle size range through algorithms.
3. Data Processing and Display System
Microprocessor (MCU)
Process photoelectric signals, calculate particle quantity, concentration, and distribution.
Execute calibration algorithms (such as calibration based on standard particles).
display screen
LCD/OLED touch screen: Real time display of concentration (particles/L or particles/m ³), temperature and humidity, time, etc. for each channel.
Support data trend charts and statistical reports (such as average, maximum, and minimum values).
Data storage and transmission
Memory: stores ≥ 10000 sets of data (including timestamps).
Interface: USB, Bluetooth or Wi Fi, export data to computer or mobile device.
Compatible software: Generate Excel reports or integrate with LIMS system (Laboratory Information Management System).
4. Power and battery system
Rechargeable battery
Lithium ion batteries (such as 3.7V/5000mAh) support continuous operation for 8-24 hours.
Power indicator function, low battery alarm prompt.
Power management module
Intelligent power-saving mode (automatically sleeps when there is no operation).
Support external power supply (such as AC adapter or car power supply).
5. Auxiliary function module
Temperature and humidity sensor
Monitor environmental temperature and humidity (such as -20 ℃~50 ℃, 0~95% RH), and correct sampling errors.
alarm function
Set particle concentration threshold (such as ISO level 5 cleanliness), and sound, light or vibration alarm when exceeding the limit.
Protective shell
Dustproof and waterproof design (such as IP54 rating), suitable for harsh environments.
Anti slip handle or bracket, convenient for one handed operation or fixed placement.
6. Optional extension components
Remote sampling tube: extends the sampling distance (such as 10 meters), suitable for areas that are difficult to access.
Printer: On site printing of inspection reports (some models integrate thermal printers).
Multi parameter sensors: integrating pressure difference, wind speed, VOC and other sensors to achieve comprehensive environmental monitoring.