ZP14 Combustible Gas Detection Module (Model:ZP14-V2.0) Manual V1.7 Valid from 17th, August 2018 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 components inside of the sensor, we shall not...

Zhengzhou Winsen Electronics Technology Co., Ltd ZP14-V2.0 Combustible Gas Detection Module Profile ZP14-V2.0 adopts plat surfaced semiconductor sensor and it has basic functions of household gas leak alarm: status indicator, buzzer, relay, output signal of electromagnetic valve; it also supplying resetting for alarm point. This module can be used for complete device development of household gas leak alarm. Feature 1. Small Size; 2. Fast Response; 3. UART output Application: For complete device development of household gas leak alarm. Flat surfaced semiconductor type Response time Resume time...

Zhengzhou Winsen Electronics Technology Co., Ltd Fig2. ZP14-V2.0 Pins from bottom view Functional description Power supply for the module Direct current supply UART(RXD) Data Receiver UART(TXD) Data Transmitter Electric magnetic valve drive 1) Normal working status: persistent low level 2) Malfunction status: persistent low level 3) Alarm status: persistent high level 1)Normal working status: high level for 120ms when power on, then persistent low level Buzzer drive 2) Malfunction status: high level for 120ms every other 4s 3)Alarm status: pulse signal of high level for 120ms and low level for...

Zhengzhou Winsen Electronics Technology Co., Ltd Communication Protocol 1. General Settings Table 3 9600 8 1 Null Baud Rate Data Byte Stop Byte Check Byte 2. Communication Commands There are two kinds of communication, initiative upload mode and question & answer mode. Under initiative upload mode, modules upload gas concentration value every other 0.5S. Note: The module will automatically switch to Q&A mode(question & answer mode) after an inquiry command is received; The module will automatically switch to initiative upload mode if no inquiry command is received within 15 seconds under Q&A...

Zhengzhou Winsen Electronics Technology Co., Ltd Sensor’s return value under Q&A mode: Stable6 Byte0 Start Byte 0xFF (High Byte)ppm (High Byte)ppm Concentration(High Byte): The highest bit(bit 8) is for sensor fault judgment; sensor fault judgment: 1 is for sensor failure, 0 is for no failure Gas concentration value = The low 6 bit of High Byte*256+Low Byte. 3. Check sum and calculation Construction for working status: Preheating status: indicator flashes slowly after powering on, it becomes be off for long in 3 min. Malfunction status: when the sensor malfunctions, green indicator will start...

Zhengzhou Winsen Electronics Technology Co., Ltd Cautions 1 .Following conditions must be prohibited 1.1 Exposed to organic silicon steam Module will lose sensitivity and never recover if it absorbs organic silicon steam. Module must avoid exposing to silicon bond, fixature, silicon latex, putty or plastic contain silicon environment. 1.2 High Corrosive gas If the sensors are exposed to high concentration corrosive gas (such as H2S, SOX, Cl2, HCl etc.), it will not only result in corrosion of sensors structure, also it cause sincere sensitivity attenuation. 1.3 Touch water Sensitivity of the...

Zhengzhou Winsen Electronics Technology Co., Ltd without electrify, this drift is related with storage conditions. Modules should be stored in airproof bag without volatile silicon compound. For the modules with long time storage but no electrify, they need long galvanical aging time for stability before using. The suggested aging time as follow: Stable3. Storage Time Suggested aging time Less than one month No less than 48 hours No less than 72 hours More than six months No less than 168 hours 2.4 Long time exposed to adverse environment No matter the modules electrified or not, if exposed to...