1、 Introduction to PM2.5 concentration transmitter for particulate matter

The BYC100-PM01 particulate matter PM2.5 concentration transmitter is a device developed and produced by Shenzhen Boyunchuang Environmental Technology Co., Ltd. for indoor air quality. It is mainly used to measure the content of PM2.5 gas in indoor air, provide effective PM2.5 concentration data, remind users to take safety measures, and drive functions such as fresh air system linkage, providing users with a comfortable home environment. The product adopts advanced laser principle sensors and computing chips, which have the characteristics of high precision, high resolution, and good stability. Widely used in building HVAC, building energy conservation, smart homes, underground garages, airport stations, public environment fields and other places.

2、 Gas Introduction

Inhalable particulate matter PM2.5 refers to particles with an aerodynamic equivalent diameter of 2.5 micrometers or less in the ambient air. It can remain suspended in the air for a longer period of time, and the higher its concentration in the air, the more severe the air pollution. Although PM2.5 is only a small component in the Earth's atmosphere, it has significant impacts on air quality and visibility. Compared with coarser atmospheric particles, PM2.5 has smaller particle size, larger surface area, stronger activity, and is prone to carry toxic and harmful substances (such as heavy metals, microorganisms, etc.). It also has a longer residence time and longer transportation distance in the atmosphere, thus having a greater impact on human health and atmospheric environmental quality.

3、 Characteristics of PM2.5 concentration transmitter for particulate matter

1. Stable and reliable communication, wide range power supply DC12-24V;

2. Comprehensive anti reverse, overvoltage, overcurrent, and inter line protection capabilities;

3. Carefully designed circuit software and hardware, with low failure rate and short stability time;

4. Original imported laser optical principle sensors and professional grade signal processing chips ensure the accuracy of sensor data;

5. The structure takes into account aerodynamic principles to achieve automatic real-time sampling, which can be used for a long time;

6. The measurable environmental parameters cover a wide range and can meet various detection environment requirements;

7. Output 4-20mA, 0-10V, RS485 and other signals for easy use.

4、 Air Quality Standards

Air quality level	24-hour PM2.5 average standard value
excellent	0～35μg/m³
good people	35～75μg/m³
Slightly polluted	75～115μg/m³
Moderately Polluted	115～150μg/m³
heavy pollution	150～250μg/m³
Severe pollution	Greater than 250 μ g/m ³ and above

5、 Technical parameters of PM2.5 concentration transmitter for particulate matter

Technical Parameter	BYC100-PM01
Detect gas	inhalable particles（PM2.5）
Detection Principle	laserDetection Principle
measuring range	0～500ug/m³ 0～1000ug/m³
resolution	1ug/m³
accuracy	≤±10%F. S
Warm-up time	30S
sampling interval	3S
response time（T90）	＜1minute
service life	3Years and above
zero drift	＜±1%
Nonlinear	＜1%F.S
repeatability	±2%
Supply Voltage	DC 12～24V
signal output	4～20mA 0～10VRS485 modbus RTU
work environment	-10～50℃； 0-95% RH (no condensation)
Environment	-30～60℃； 0-100% RH (no condensation)
Shell material	Plastic ABS
protection grade	IP30
Installation method	Wall mounted and ceiling mounted
Weight/Size	120g/ 110mm×70mm×38mm
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