Smell sensorMST136 Product instruction manual Ningxia MaiYa Sensor Technology Development Co., LTD

Semiconductor gas sensor series Product overview MST136 air quality (odor) sensor has the advantages of high sensitivity, low cost, long life and low power consumption. It is a broad spectrum gas sensor with high sensitivity to many trace reduction gases (or micro-toxic gas molecules). These gas molecules include, Ammonia, hydrogen, alcohol, carbon monoxide, methane, propane, glycerine, styrene, propylene glycol, phenol, toluene, ethylbenzene, xylene, formaldehyde and other organic volatile gases, cigarette, wood, paper burning smoke, soot, etc. MST136 type air quality (odor) sensor belongs to...

Specification Model number The planar device structure is shown in the figure. A heating wire is stabilized on a ceramic sheet, a gold electrode lead is connected at both ends, and a semiconductor-sensitive material is coated between the two electrodes. The heating material can heat the entire ceramic sheet to 200-400°C, so that the sensor can reach the required operating temperature. The opposite electrode on the outside of the tube core can measure the electrical characteristics of the material in real time. The corresponding figure of the welding leads of the sensor is shown in the figure....

Semiconductor gas sensor series Basic circuit Sensor 1, 2 pins are connected to the heating circuit, 3, 4 pins are connected to the measuring circuit; Under the premise of meeting the electrical performance requirements of the sensor, the heating and measurement can share the same power circuit. Note: Note the prominent mark on the sensor. The two tube feet next to the mark are heating electrodes. Size unit: mm, tolerance ±0.2mm Ningxia MaiYa Sensor Technology Development Co., LTD 3 E: [email protected]

Semiconductor gas sensor series Attention 1. Must avoid the situation 1.1 Exposure to silicone vapors If silicone vapor is adsorbed on the surface of the sensor, the sensitive material of the sensor will be coated, inhibiting the sensitivity of the sensor, and can not be recovered. Sensors should be protected from exposure to silicone adhesives, hairspray, silicone rubber, putty, or other silicon-containing plastic additives where they may be present. 1.2 Highly corrosive environment Exposure of sensors to high concentrations of corrosive gases (such as H2S, SOX, Cl2, HCl, etc.) will not only...

Semiconductor gas sensor series clean air and no silicone. Sensors that have been stored for a long time need to be energized for a long time before use to stabilize them. 2.4 Long-term exposure to extreme environments Whether the sensor is powered on or not, the sensor performance will be seriously affected if it is exposed to extreme conditions for a long time, such as high humidity, high temperature, or high pollution. 2.5 Vibration Frequent and excessive vibration will lead to resonance of the sensitive element and fracture. The use of pneumatic screwdriver/ultrasonic welders in transit and...