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Summary of Contents for Winsen MP901
- Page 1 Air-Quality Gas Sensor (Model: MP901) Manual Version：1.1 Valid From：2014.08.10 Zhengzhou Winsen Electronics Technology Co., Ltd...
- Page 2 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.
- Page 3 MP901 Air-Quality Gas Sensor Profile MP901 gas sensor is for air quality. It adopts multilayer thick film manufacturing technology. The heater and metal oxide semiconductor material on the ceramic substrate of subminiature Al 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.
- Page 4 Basic Circuit Fig2. MP901 Test Circuit Instructions: The above fig is the basic test circuit of MP901.The sensor requires heater voltage (V ) and circuit voltage (V ) which share one source. They must adopt DC power. V is the voltage of load resistance R which is in series with sensor.
- Page 5 Output Voltage (V) Time (day) Fig7.long-term Stability of MP901 NOTE: Test is finished in standard test conditions, the abscissa is observing time and the ordinate is V Cautions 1 .Following conditions must be prohibited 1.1 Exposed to volatilizable organic silicon steam Sensing material will lose sensitivity and never recover if the sensor absorbs organic silicon steam.
- Page 6 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. 2.2 Used in high gas concentration No matter the sensor is electrified or not, if it is placed in high gas concentration for long time, sensors characteristic will be affected.
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