Zhengzhou Winsen Electronics Technology Co.,Ltd Electrochemical Gas Detection Module User’s Manual V2.3 （Model：ZE11） Valid from: 2023-03-24 Zhengzhou Winsen Electronics Technology Co., Ltd Email: [email protected] Leading gas sensing solutions supplier in C

Zhengzhou Winsen Electronics 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 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...

Zhengzhou Winsen Electronics Technology Co.,Ltd Electrochemical Detection Module ZE11 ZE11 is a general-purpose and high-performance electrochemical module. It can detect the ethylene, ethanol, formaldehyde, benzene, toluene, vinyl chloride and other VOC gases based on electrochemical principle, it has good selectivity and stability. A temperature sensor is built-in for temperature compensation. It has the digital output and analog voltage output at the same time which facilities the usage and calibration and shorten the development period. It is a combination of mature electrochemical detection...

Zhengzhou Winsen Electronics Technology Co.,Ltd UART(RXD) data input UART(TXD) data output Sensor amplified voltage (Non-standard signal) Figure 2: Module pin diagram (bottom view) Gas Code Description Gas Code ethylene ethanol formaldehyde benzene toluene vinyl chloride Communication Protocol 1. General Settings Table 4. Baud Rate Data Bits Stop Bits Check Bits 9600 8 bytes 1 byte Null 2. Communication Specification The default communication mode is active upload and query & answer mode. Active upload by default, it sends gas concentration every one second. For example, if detect ethylene, The...

Zhengzhou Winsen Electronics Technology Co.,Ltd For example, the above return value format shows that the module is ethylene module (0x08), the concentration unit is ppm (0x03), the resolution is 0.1ppm (0x01), The ethylene gas concentration value =(0x02*256+0xE3)*0.1= (2*256+227)*0.1= 73.9ppm. Detection Range =(0x03*256+0xE8)*0.1=(3*256+232)*0.1=100.0ppm. Shift to query and answer mode, command line format as below (Table 6) 0 Switch command Check value In query and answer mode, read the concentration command line format as below (Table 7). 0 Command reserve Check value In query and answer mode,...

Zhengzhou Winsen Electronics Technology Co.,Ltd (Note: the conversion relationship between unit mg/m3 and ppm in the return value: 2mg/m3=1ppm, the coefficient is calculated on behalf of ethylene oxide. Due to the different coefficients of different gas types, it is recommended to take the ppm concentration value of the 6th and 7th bytes as the standard.) Switch to active upload , command line format as below (Table 9). 0 Switch command Active upload Check value Active mode instruction: FF 01 78 40 00 00 00 00 47 The format of sensor return values is shown in Table 5. 3.Checksum and calculation...

Zhengzhou Winsen Electronics Technology Co.,Ltd Sensor shall avoid organic solvent, coatings, medicine, oil and high concentration gases Do not disassemble the sensor at will. Otherwise, the sensor electrolyte may leak and cause damage.. Cannot be fully packaged by resin material, cannot be immersed in oxygen-free environment, or it may impact the performance of sensor. Cannot be used in corrosive gas for long time, corrosive gas will damaged sensor. Disclosing and damaging waterproof and breathable cover is prohibited Sensor gas inlet side cannot be blocked and polluted. Excessive impact or...