Zhengzhou Winsen Electronics Technology Co., Ltd Hydrogen Leak Detection Module （Model No.: ZE21-H2） Manual Version: 1.0 Date of issue：2017-11-7 Zhengzhou Winsen Electronics Technology Co., Ltd. Tel: 86-371-67169097 67169670 Email: [email protected] Leading gas sensing solutions supplier in Chi

Zhengzhou Winsen Electronics Technology Co., Ltd Statement This manual’s 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 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...

Zhengzhou Winsen Electronics Technology Co., Ltd Hydrogen Leak Detection Module ZE21-H2 Profile ZE21-H2 is a special-purpose and miniaturization electrochemical module. It utilizes electrochemical principle which makes the module with high selectivity and stability. Built-in temperature sensor can do temperature compensation; and it has digital output and analog voltage output. It is a combination of mature electrochemical detection principle and sophisticated circuit design. Features High sensitivity, high resolution, low power consumption, long life, Uart output; Main Applications Hydrogen...

Zhengzhou Winsen Electronics Technology Co., Ltd PIN15 Internal power detection of the module Module status detection UART(RXD) UART(TXD) 0-3.3V data input 0-3.3V data output When the concentration exceeds 8000 ppm output 3.3V Precautions: 1. Under normal working state, the system is automatically awakened once every 1s. 2. PIN3 outputs low levels during the preheating of the module, and the preheating time is 20-30s. After the preheating is completed, the PIN3 outputs high level, when the data is sent by the module serial port, PIN3 outputs low levels. 3. PIN10 outputs high level when the sensor...

Zhengzhou Winsen Electronics Technology Co., Ltd Start Byte Full Range Full Range (High Byte) (High Byte) Gas concentration value = High Byte*256+Low Byte 3. Check sum and calculation Check = (invert(byte1+bye2+……+byte7))+1 Please refer the following example: unsigned char FucCheckSum(unsigned char *i,unsigned char ln) { unsigned char j,tempq=0; i+=1; for(j=0;j<(ln-2);j++) { tempq+=*i; i++; } tempq=(~tempq)+1; return(tempq); } DO NOT insert or extract the sensor on the PCB board. DO NOT change or move the electronic part on the module. Avoid sensor contact with organic solvent, coatings, medicine,...