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ZW - PM Sensor

Product catalog summary

Overview: The ZW-PM Sensor, developed by Tianjin Zwinsoft Technology Co., Ltd, is an atmospheric aerosol sensor that uses laser scattering to measure the concentration of suspended particles in the air. It provides real-time data on PM2.5, PM10, and TSP concentrations.

Applications: The sensor is suitable for atmospheric environment detection, indoor and outdoor air quality testing, road dust monitoring, and construction site dust monitoring.

Specifications:

Detecting Principle: Light scattering method (full angle).
Detecting Range: 0~1000ug/m³, with an upper limit of 30mg/m³.
Accuracy: For PM2.5, PM10, and TSP, accuracy is ±10ug/m³ for concentrations ≤100ug/m³ and ±10% for concentrations >100ug/m³.
Sampling Flow Rate: 1L/min using a Nidec022 pump.
Data Refresh Frequency: 1 second.
Operating Conditions: Temperature range of -30~70℃ and humidity of 5~95% RH.
Storage Conditions: Temperature range of -40~85℃ and humidity of 0~95% RH, free of condensation.
Power Requirements: DC 12V±0.1V, current <500mA.
Communication: USB RS485 (Modbus).
Dimensions: W85*H85*D35.
Life Span: Over 3 years.

Interface Definition: The sensor includes power communication, air pump, and air fan interfaces with specific pin definitions for power input, output, and communication.

Connector Specifications: Different connectors are used for power communication, air pump ports, and air fan ports with specified pin sizes.

Modbus Communication Protocol:

Format: Modbus-RTU protocol with float type data.
Baud Rate: 9600; Data bits: 8, Stop bit: 1, No check bit.
Operation: The system starts measuring data automatically after power-on and waits for host queries.
Data Transmission: Includes specific byte sequences for PM2.5, PM10, and TSP data with Modbus-CRC16 for error checking.

Notes: Avoid placing the sensor in high concentration environments for extended periods to prevent lifespan reduction. High humidity can interfere with results, so timely dehumidification is recommended.

Catalog excerpts

TIANJIN ZWINSOFT TECHNOLOGY CO.,LTD Atmospheric aerosol sensor instructions ZW-PM Sensor

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Description: ZW-PM Sensor is one of the Atmospheric aerosol Sensors that independently developed by our company. It adopts the principle of laser scattering and can accurately detect and calculate the concentration of suspended particles in the per unit volume air with different particle sizes. It can realize the real-time output of the mass concentration value of PM2.5, PM10 and TSP . Application: ✮ Atmospheric environment detection and early warning system ; ✮ Indoor and outdoor air quality testing ; ✮ Online monitoring of road dust ; ✮ Construction site online dust monitor

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Specifications ZW-PM Sensor Detecting principle Light scattering method（full angle） Detecting range detecting accuracy Preset sampling flow rate （Nidec022 pump) Data refresh frequency Working condition Storage condition

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Note： ① Please do not place the sensor in a high concentration environment for too long . Otherwise, the life span of the sensor will be severely depleted . ② GRIMM as a reference, 25±2℃, 50± 10% RH are environmental conditions. ③ Our aerosol sensor has a built-in air pump interface, which drives the Nedic022 ， The factory preset flow is 1L/min . ④ High humidity will interfere the result , Please dehumidify on time . Interface definition： The power communicat

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Description Main power input terminal (12V) Output end of air pump power supply (12V) Fan power output (5V) Power grounding terminal (GND) Air pump and fan speed control input (PWM) Air pump and fan speed feedback end (FG) ） RS485 communication cable A RS485 communication cable B 1 The air pump and fan can only be connected . 2 When connecting,please strictly follow the power input and output

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Connector specifications： Function Power communication Modbus communication protocol： 1.Protocol summery： 1） modbus-RTU protocol format . 2） The transmitted data is of float type ,with low in the first . 3） Baud：9600; Data bits：8，stop bit：1，check bit：none . 4） After power-on initialization, the system automatically starts measuring data and waits for the host to query data . Read length

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1 CRC is Modbus-CRC16 2 The transmitted data is of float type ,with low in the first .

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All Tianjin Zwinsoft Technology Co.,Ltd. catalogs and technical brochures

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