Laser dust sensor (Model: ZH07) Manual Version: 1.1 Valid from: 2021-11-30 Zhengzhou Winsen Electronic Technology Co., Ltd

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 using 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 ZH07 Laser dust sensor Description: Laser Dust sensor module ZH07 is a common type, small size sensor, using laser scattering principle to detect the dust particles in air, with good consistency and stability. It is easy to use, with UART & PWM output. Features: Good consistency Real time response Accurate data Low power consumption Minus resolution of particle diameter 0.3 µm Main Applications Model Detectable particle Air purifiers; Ventilation systems; Portable instrument; Air quality monitoring equipment; Air conditioner; and smart home fields;...

Zhengzhou Winsen Electronics Technology Co., Ltd Power-saving mode configuration(low level valid); Suspended or high level (3.3V) normal working Serial port received (TTL @3.3V) Serial port transmission (TTL @3.3V) Terminal Description: JST-SM08B-GHS-TB-8P Connector, Pin Spacing 1.25mm, Pin Qty: 8 Communication Protocol 1. Serial communication settings Baud rate Date byte Stop byte Check byte Note: UART protocol Refer to "ZH06Ⅰ-Ⅳ Laser Dust Sensor User Interface Instructions" Email: [email protected] Leading gas sensing solutions supplier in C

Zhengzhou Winsen Electronics Technology Co., Ltd Schematic diagram: 1. Typical circuit (1) Power supply: 5V; interface level: 3.3V User MCU working voltage: 3.3V; interface level: 3.3V The typical interface circuit is as follows: 2. Typical circuit (2) Power supply: 5V; interface level: 3.3V User MCU working voltage: 5V; interface level: 5V The typical interface circuit is as follows: Email: [email protected] Leading gas sensing solutions supplier in China!

Zhengzhou Winsen Electronics Technology Co., Ltd Principle Description: Sensor construction Email: [email protected] Leading gas sensing solutions supplier in China!

Zhengzhou Winsen Electronics Technology Co., Ltd Installation Method: The dust collection hole is the air inlet inside the sensor, which needs to keep good contact with the external air; the fan is installed at the air outlet inside the sensor. When the sensor is installed and working, must avoid strong airflow interference around the sensor; if it cannot be avoided, try to keep the external airflow direction perpendicular to the internal airflow direction of the sensor. When designing the detection cavity of the whole machine, the effective area of the sampling port of the sensor should be fully...

Zhengzhou Winsen Electronics Technology Co., Ltd Typical Output Characteristics: Note: The picture shows the data comparison between the conventional ZH07 laser particle sensor and TSI8530 in the test environment. Abscissa : Testing time related parameters Ordinate : The concentration of particles in the test environment (with TSI8530 data as reference, unit: μg /m³). Note: 1. It is forbidden to remove the shield cover of the sensor and the internal fixing screw of the sensor, because the shield cover of the sensor is connected with the internal power supply of the sensor through the internal...

Zhengzhou Winsen Electronics Technology Co., Ltd particles, high humidity environment, such as: kitchen, bathroom, smoking room, outdoor environment, etc. If it is used in such environments, corresponding protective measures shall be added to the user's equipment to prevent viscous particles or large particles from entering the interior of the sensor and forming accumulation in the interior of the sensor which will affect the performance of the sensor. (for example, in the working environment with floccules or fibers, the corresponding coarse filter net should be added ahead the air inlet of...

Zhengzhou Winsen Electronics Technology Co., Ltd Packing: 1. Put the sensor into the Pearl Foam Tray as shown in the picture below. 2. Put the whole plate of sensors in Small Box one by one, then puts a foam plate at the top. Each Small Box can hold 25 sensors. 3. Select the appropriate carton according to the quantity of the order: Carton F: 355 x 310 x 285mm, can hold 200 sensors, total weight around 6.2kg. Carton D: 630 x 280 x 405mm, can hold 600 sensors,total weight around 18.0kg. Note: Please pay attention to water proof of the carton during transportation Email: [email protected] Leading...

Zhengzhou Winsen Electronics Technology Co., Ltd Reliability Testing: Testing Item Testing Condition Decision Criteria Number of Tests - n Number of Failures - c Zero output range The test cabin meets the requirements of clean air: the mass concentration of dust is not more than 5.0 μ g / m³, the sensor is powered on, and the output value is recorded six times. Zero point output range: Record the output value of the sensor for 6 times at each concentration of 50, 130 and 260μg/m³, totally 18 times, take the maximum value respectively Meet the description of "PM2.5 detection accuracy" The sensor...

Zhengzhou Winsen Electronics Technology Co., Ltd 9 High Temperatur e Storage The sensor is not powered on, under the environment of 70 ± 2 ℃, the duration is 16h, and stable at room temperature for 2h. Measure the zero point output range and relative error after completion the coating and coating, no loosening and falling off on the connectors and parts, no rust and mechanical damage on the metal components. Zero point output range: High Temperatur e Work The sensor is powered on and operated under 50 ± 2 ℃ environmental conditions for 2h, Measure the zero output range after completion. The sensor...