Pressure sensors are used in all walks of life, especially in the industry, where a lot of pressure sensors are used, but the industry generally requires that the pressure sensor can be anti-corrosion, the pressure sensor joint and cavity are made of imported stainless steel, and the stainless steel material of the pressure transmitter body has high corrosion resistance and good attenuation performance, and can monitor any medium compatible with 316L.
First of all, it is necessary to find out whether the tested medium is compatible with 316L: Alloy 316 and 317L did not exhibit corrosion in a 100-hour 5% salt spray test. Secondly, when purchasing sensor products, consult with the supplier whether the medium has an impact on the pressure sensor; After the selection of corrosion-resistant materials of the projectile body, in order to meet the needs of users.
Finally, we can choose the barrier method: there are molybdenum 2 titanium and tantalum sheets in front of the pressure transmitter, and the pressure is transmitted with methyl silicone oil between the diaphragm and the ballistic tube, and the minimum range can be 0-100kPa, if the diaphragm data is not corrosion-resistant, a layer of F46 diaphragm can be added, but the bottom of the instrument activity has decreased. F46 can also be directly used as a barrier diaphragm, and fluorine oil can be used as a transfer solution, which can play a double barrier role.
Once the pressure sensor is found to be incompatible with the medium in the process of use, the sensor must be replaced immediately, corresponding to some special media, we can choose special raw materials or special structures to measure, and the pressure sensor will definitely be more and more widely used in the future.
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