Zhengzhou Winsen Electronics Technology Co.,Ltd Electrochemical Gas Detection Module User’s Manual V1.1 （Model：ZE03G） Valid from: 2021-08-04 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 ZE03G ZE03 is a general-purpose and high-performance electrochemical module. It uses imported three electrodes, electrochemical gas sensor and high-performance micro-processor. By installing different gas sensor, the module could detect relevant gas. It is with built-in temperature sensor to make temperature compensation, which makes it could detect the gas concentration accurately. It has the digital output and analog voltage output at the same time which facilities the usage and calibration and shorten the development...

Zhengzhou Winsen Electronics Technology Co.,Ltd Detection range and signal output Detection range VO Voltage output Range Response Time(T90) Left side value of detection range (zero point) is corresponding to left side value of voltage output range ,BUT right side value of detection(max detection value ) is NOT corresponding to the right side value of voltage output range. Take ZE03-O2 (0-25%vol) as an example: 0%vol is corresponding to 1.5V, but the corresponding value of 25%vol should subject to inspection report, not 0V, other values like 0.1V or 0.2V are possible. Ground Power supply Original...

Zhengzhou Winsen Electronics Technology Co.,Ltd Communication Protocol 1.General Settings Baud Rate Data Bits Stop Bits Parity 2.Communication Specification The default communication type is active upload and it sends gas concentration once every second (the concentration is 16 hexadecimal). If you want to switch to Q&A mode, please send 0x78 command, to change communication mode to 0x04(Q&A mode), then current concentration will be sent by module after it receiving 0x86 command (reading concentration), suggested communication cycle is 1s. 3.Communication Commands The default mode is active upload...

Zhengzhou Winsen Electronics Technology Co.,Ltd 0x86 — To read the concentration value (This command is needed just under Q&A mode.) 1 0x86 To read concentration Start Byte Gas Concentration High byte FF 86 00 00 2B 01 00 00 4E (Take SO2 for example, the concentration is 0) gas concentration=(High byte*256+Low byte)*resolution Please note that in the calculation formula, the High byte and Low byte means the decimalism value changed from hexadecimal. 5.Checksum and calculation /********************************************************************** * Function Name: ucharFucCheckSum (uchar *i,ucharln)...

Zhengzhou Winsen Electronics Technology Co.,Ltd tempq+=*i; i++; } tempq=(~tempq)+1; return(tempq); } Cautions 1. Please do not take away or plug the sensor in the module. 2. It is prohibited to weld the pins of the module. The socket could be welded. 3. Sensor shall avoid organic solvent, coatings, medicine, oil and high concentration gases. 4. Excessive impact or vibration should be avoided. 5. Please keep the modules warming up for at least 5 minutes when first using. 6. Please do not use the modules in systems which related to human being’s safety. 7. Please do not use the modules in strong...