Manual Version: 1.0 Valid from: 2023-10-27 Zhengzhou Winsen Electronics Technology Co.,

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 MC33J Catalytic Gas Sensor Profile MC33J adopts catalytic combustion principle, and its two arms of electric bridge consists of a test element and a compensate element. The resistance of the test element rises once it meets the hydrogen gas, at the same time, the output voltage of the bridge changes and the voltage variation rises in direct proportion to the gas concentration. The compensate element, as a reference, has the function of compensating temperature and humidity. Features The bridge output is linear, quick response, good repeatability...

Zhengzhou Winsen Electronics Technology Co.,Ltd Basic Circuit Figure 2: Basic Test Circuit Sensor Characterization Figure 3: Sensor Sensitivity Curve Figure 5: Zero output of the sensor at different temperature conditions Figure 4: Sensor Response Recovery Curve Figure 6: Sensitivity output of the sensor at different temperature conditions Email: [email protected]

Zhengzhou Winsen Electronics Technology Co.,Ltd Figure 7: Zero output of the sensor at different voltage conditions Figure 8: Sensitivity output of the sensor at different voltage conditions Cautions 1. Following conditions must be prohibited 1.1 Exposed to organic silicon steam Sensing material will lose sensitivity and never recover if the sensor absorbs organic silicon steam. Sensors 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,...

Zhengzhou Winsen Electronics Technology Co.,Ltd No matter the sensors electrified or not, if exposed to adverse environment for long time, such as high humidity, high temperature, or high pollution etc., it will influence the sensors’ performance badly. 2.5 Vibration Continual vibration will result in sensors down-lead response then break. In transportation or assembling line, pneumatic screwdriver/ultrasonic welding machine can lead this vibration. 2.6 Concussion If sensors meet strong concussion, it may lead its lead wire disconnected. 3. Recommendations for use 3.1 Welding For sensor, handmade...