Dust Particle Counter Sensor-ONETEST-040

Overview
ONETEST-040 is a multi-channel dust particle counter based on the principle of laser scattering, which can accurately measure 6 kinds of particle sizes including 0.3μm, 0.5μm, 1μm, 3μm, 3μm, 5μm and 10μm. Through the standard RS485 interface and Modbus-RTU protocol, the data is transmitted to various intelligent terminals in real time to reduce human participation and realize unmanned intelligent monitoring. In a variety of dust-free occasions, to achieve 7*24 hours of continuous real-time monitoring, reduce risks, reduce costs.
ONETEST-040 has higher measurement precision and particle size resolution, and has a stronger ability to resist the effects of humidity. ONETEST-040 dust particle counter using industrial laser and photosensitive components, combined with the latest generation of light scattering particles monitoring technology, careful calibration of optical and gas path structure, and a new generation of high frequency weak signal processing circuit and high precision particle recognition algorithm, more accurate measurement of cleanliness requires environmental particle concentration.

Features
1.Data accuracy: single-particle laser scattering principle, industrial-grade laser light source. Count efficiency, good repeatability and consistency.
2.Particle size range: particle size range 0.3~10μm, ensure counting efficiency, a single sensor covers six channels.
3.High reliability: aerodynamics correction, light path and air path self-inspection, insensitive to vibration, to ensure the reliability and stability of the system.
4.Stable flow: active sampling, constant flow intake fan, PID flow control function, stable, long time, high negative pressure, sampling; optional air pump version, external high-performance air pump module.
5.Quick response: second-level data update.
6.Communication interface: RS 485 and UART TTL serial port output; optional 4 G and Ethernet
7.Automatic measurement: remote control, wireless transmission, real-time data upload to the Internet of Things platform.
8.Circuit safety: with ESD, over voltage, over current, back contact protection, to ensure the stability and reliability of the circuit.
9.Easy installation: simple installation structure, high versatility.
10.Safe and friendly: low-voltage power supply, no electric shock; no radioactive source, no light pollution.
11.Sampling flow: standard 2.83 L/min, air pump / fan two sampling methods are optional.
12.Data unit: pcs / 2.83L [screen display data unit: pcs / 28.3L]

Scope of application
Pharmaceutical industry electronic industry food processing industry finishing clean room, etc.

Working principle
Using the single particle laser scattering principle, through the precise optical design and the hydrodynamic principle, the particles in the sampled air pass through the beam in turn to produce weak scattered light, collecting the scattered light and project onto the high sensitive and high bandwidth photodetector. The signal intensity of each particle is identified and analyzed by the particle size of each particle by conversion and aerodynamic calibration.

Technical indicators