Zhengzhou Winsen Electronics Technology Co.,Ltd Electrochemical Gas Detection Module User’s Manual V3.1 （Model：ZE03） Issue Date 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 ZE03 ZE03 is a general-purpose and high-performance electrochemical module. It uses three electrodes, electrochemical gas sensor and high-performance micro-processor. By installing different gas sensor, the module could detect relevant gas. 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 principle and sophisticated circuit design, to meet customers’ different...

Zhengzhou Winsen Electronics Technology Co.,Ltd Fig2. Socket size for module (from side, unit is mm ) Detection range and signal output Voltage output range NOTE. 1.Table2 shows the normal detection range, other ranges could be customized. 2.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 is not the fixed...

Zhengzhou Winsen Electronics Technology Co.,Ltd The meaning of VO (Vout) : It means original voltage (linear) after amplifying circuit, rather than concentration value of current target gas in environment. If choose this output way, users need to know the zero voltage Vout0 and test voltage Vout1 which can be shown in the ZE03 module inspection record (if users choose UART way, this document is not needed. This document is not supplied by default). Users can calculate gas concentration of current target gas in environment based on Vout0 and Vout1. Take ZE03-CO for example: zero voltage Vout0...

Zhengzhou Winsen Electronics Technology Co.,Ltd Start Byte FF 78 01 00 00 00 00 00 87(If users received the data, it means switch successfully ) If users want to switch to active upload mode, send FF 01 78 03 00 00 00 00 84(hexadecimal). 0x86 — To read the concentration value (This command is needed just under Q&A mode.) Table7. 1 Start Byte Concentration High byte FF 86 00 D1 05 01 00 00 A3 (Take O2 for example, its concentration is 20.9%vol in air) gas concentration=(High byte*256+Low byte)*resolution Please note that in the calculation formula, the High byte and Low byte means the decimalism...

Zhengzhou Winsen Electronics Technology Co.,Ltd 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 matched sockets 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. 24 hours aging time are suggested if power off for long time. 6. Please do not use the modules in systems which related to human being’s...