Electrochemical CH2O Detection Module （Model：ZE08B-CH2O） User’s Manual Version: 1.1 Valid from: 2016.4.25 Zhengzhou Winsen Electronics Technology Co.

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 allow customers better use our products 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,...

Zhengzhou Winsen Electronics Technology Co.,Ltd Electrochemical CH2O Detection Module ZE08B-CH2O Profile ZE08B-CH2O is a general-purpose and miniaturization electrochemical formaldehyde detection module. It utilizes electrochemical principle to detect CH2O in air which makes the module with high selectivity and stability. It is built-in temperature sensor to make temperature compensation. It has the digital output and analog voltage output at the same time. It is a combination of mature electrochemical detection principle and sophisticated circuit design. Features *High sensitivity &resolution,...

Zhengzhou Winsen Electronics Technology Co.,Ltd Pin Description: UART（TXD） 0～3.3V data output UART（RXD） 0～3.3V data input Reserved Fig2. Pin figure of the Module Communication Protocol: 1. General Settings Table 3 Baud Rate Data Bits Stop Bits check bits 9600 8 bytes 1 byte Null 2.Commands There are two communication type: active upload type and Q&A type. The default type for this module is active upload and it sends gas concentration every other one second. Active upload data display format is as follows： Table 4 Full Range Full Range (High Byte) Gas concentration value=High byte of concentration...

Zhengzhou Winsen Electronics Technology Co.,Ltd 0xFF Read gas concentration under Active upload mode: Table 7 The returned format is as follows: Table 8 High byte High byte Gas concentration value=High byte of concentration *256+ Low byte of concentration 3 . Checksum and calculation /********************************************************************** * Function Name: unsigned char FucCheckSum(uchar *i,ucharln) * Functional description: Sum check【Take Not(Byte1+Byte2+…Byte7) +1】 * Function declaration: Take Not(Byte1+Byte2+…ByteX (X>2) **********************************************************************/...

Zhengzhou Winsen Electronics Technology Co.,Ltd Cautions: 1. Sensor shall Avoid organic solvent, coatings, medicine, oil and high concentration gases 2. 3. 4. 5. 6. Excessive impact or vibration should be avoided； Please keep the modules warming up for at least 5 minutes when first using. Please do not use the modules in systems which related to human being’s safety. Please do not use the modules in strong air convection environment. Please do not expose the modules in high concentration organic gas for a long time. Zhengzhou Winsen Electronics Technology Co., Ltd Add: No.299, Jinsuo Road, National...