VOC Gas Sensor (Model:WSP2110) Manual Version：1.3 Valid From：2014.05.01 Zhengzhou Winsen Electronics Technology Co.
Statement This manual copyright belongs 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 useit better and reduce the faults caused by misuse,please read the manual carefully and operate it correctly in accordance with the instructions.
Zhengzhou Winsen Electronics Technology Co., Ltd www.winsen-sensor.com WSP2110 VOC Gas Sensor Profile WSP2110 VOC gas sensoradopts multilayer thick film manufacturing technology.The heater and metal oxide semiconductor material on the ceramic substrate of subminiature Al2O3 are fetched out by electrode down-lead,encapsulated in metal socket and cap.Conductivity of the sensor is affected by the concentration of target gas.The higher the concentration is,the higher conductivity of sensor gets.
Zhengzhou Winsen Electronics Technology Co., Ltd www.winsen-sensor.com Basic Circuit Fig2. WSP2110 Test Circuit Instructions:The above fig is the basic test circuit of WSP2110.The sensor requires two voltage inputs: heater voltage(VH) and circuit voltage(VC). VHis used to supply standard working temperature to the sensor and it can adopt DC or AC power, while VRL is the voltage of load resistance RLwhich is in series with sensor.
Zhengzhou Winsen Electronics Technology Co., Ltd www.winsen-sensor.com Output Voltage(V) Toluene Time(day) Fig7.long-term Stability of WSP2110 NOTE: Test is finished in standard test conditions, the abscissa is observing time and the ordinate is VRL. Cautions 1 .Following conditions must be prohibited 1.1 Exposed to volatilizableorganic silicon steam Sensing material will lose sensitivity and never recover if the sensor absorbs organic silicon steam.
Zhengzhou Winsen Electronics Technology Co., Ltd www.winsen-sensor.com Pin 1&2 is heating electrode, Pin 3&4 is measuring electrode. Protuberance Mark Fig8.Pin Schematic Diagram 2 .Following conditions should be avoided 2.1 Water Condensation Indoor conditions, slight water condensation will influence sensors’ performance lightly. However, if water condensation on sensors surface and keep a certain period, sensors’ sensitive will be decreased. 2.
Zhengzhou Winsen Electronics Technology Co., Ltd www.winsen-sensor.com 2.7.1For sensor, handmade welding is optimal way. The welding conditions as follow: Soldering flux: Rosin soldering flux contains least chlorine homothermalsolderingiron Temperature： 250℃ Time：less than 3 seconds 2.7.
