Zhengzhou Winsen Electronics Technology C

Statement This manual copyright belongs to Zhengzhou Winsen Electronics Technology Co., LTD. Without the written permission, any part of this manual shall not be copied, translated, stored in database or retrieval system, also can’t spread through electronic, copying, record ways. Thanks for purchasing our product. In order to let customers use it better and reduce the faults caused by misuse, please read the manual carefully and operate it correctly in accordance with the instructions. If users disobey the terms or remove, disassemble, change the components inside of the sensor, we shall not...

Zhengzhou Winsen Electronics Technology Co., Ltd ZPH04B Particles Sensor Profile This sensor integrates infrared PM2.5 detection technology, using particle counting principle to detect PM2.5 in the environment. It can detect the particles (diameter ≥1μm). Before delivery, the sensor has been aged, debugged, calibrated and has good consistency and high sensitivity. Features *Good Stability for long time *High Sensitivity *Easy to install and use *Good Consistency *Interface output is multiple *Modular design & Anti-interference Applications *Air Purifier *HVAC System *Civil and Commercial AC *Smoke...

Zhengzhou Winsen Electronics Technology Co., Ltd Fig 1 Detection Principle Light receiving tube Power resistor Email: [email protected] Leading gas sensing solutions supplier in China!

Zhengzhou Winsen Electronics Technology Co., Ltd Emission Source Output circuit 1 Optical receiver Signal processing Remarks: ZPH04B dust sensor uses power resistors to heat the air, the hot air promotes the ambient gas (PM2.5) into the detection of light path, so as to detect. The optical structure determines the installation of the sensor has certain specification requirements, otherwise it will lead to abnormal detection data. Pins Definition UART mode Email: [email protected] Leading gas sensing solutions supplier in China!

Zhengzhou Winsen Electronics Technology Co., Ltd PM2.5 output wave in PWM mode Fig5.PM2.5 output wave Remarks：1.LT is the pulse width of low level in one period (Unit:ms) 2.UT is the pulse width of one period (Unit:s) 3.Low pulse rate RT: RT=LT/ UT x100% range 4.Low pulse rate corresponds to concentration The cross-reference of low pulse rate of output and particle concentration Fig6.The cross-reference of PM2.5 low pulse rate and particle concentration Remark: People usually use different levels (Best, Good, Bad, Worst) to describe the air quality condition. Email: [email protected] Leading...

Zhengzhou Winsen Electronics Technology Co., Ltd Recommended solution: Best： 0.00%-4.00% This suggestion is just a reference, please set according to users’ real demand. Communication protocol 1. General Settings Baud rate Interface level Data byte Stop byte Check byte 9600 4.3±0.2 V（TTL） 8 bytes 1 byte no * Funtion name: ucharFucCheckSum(uchar *i,ucharln) * Funtion description:Sum check(Negate the sum of send and receive protocol 1/2/3/4/5/6/7 and +1 ) **********************************************************************/ unsigned char FucCheckSum(unsigned char *i,unsigned char ln) { unsigned...

Zhengzhou Winsen Electronics Technology Co., Ltd Put the sensors into the plastic tray in the same direction. According to the size of the box, put in the plastic tray with the sensor installed. Put the packed sensors into the carton. Sealing and packing. If the quantity is less than the minimum packing box in single shipment, it’s not limited to this standard. Email: [email protected] Leading gas sensing solutions supplier in China!

Zhengzhou Winsen Electronics Technology Co., Ltd Cautions 1.Terms of Use 1. Installation requirements: The sensor must be installed vertically to ensure that the gas path is smooth and avoid contact with organic solvents. 1.1. Installation must be vertically. As shown in Figure 3, the power resistance of the air heating, hot air to promote the external gas into the optical path and promptly removed, the wrong way to install the sensor will read abnormal. 1.2. To ensure smooth detection of gas flow outside the air flow can smoothly into the sensor optical cavity and timely discharge. When applied...

Zhengzhou Winsen Electronics Technology Co., Ltd 2. Avoid strong electromagnetic interference The sensor has certain anti-interference performance, but it should avoid strong electromagnetic environment. When using wireless communication modules (such as WiFi, Bluetooth, and GPRS), keep a sufficient distance from the sensor. The specific safety distance should be verified by the user. 3.Transport & storage 1. Avoid vibration：Frequent transport and assembly process, excessive vibration will lead to optical device dislocation affect the original calibration data 2. Long-term storage：Sealed bags...