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Under the same conditions, which is better for low-range pressure measurement (within 6 kPa), ordinary single-crystal silicon or single-crystal silicon differential pressure? Why?
The differential pressure effect is superior to that of ordinary single-crystal silicon. The stressed diaphragm of ordinary single-crystal silicon is much smaller compared to differential pressure single-crystal silicon. The deformation caused by the same pressure is significantly more pronounced in differential pressure than in ordinary single-crystal silicon. Temperature changes cause thermal expansion and contraction of the diaphragm, especially in environments with large temperature differences. Differential pressure, due to the effect of two diaphragms offsetting each other, is also superior to ordinary single-crystal silicon.
How are two-wire pressure transmitter sensors generally connected to paperless recorders?
Connect the signal positive to the signal, the power positive to the power, and short-circuit the power negative to the signal negative.
Can pressure measure gas/water?
Diffused silicon pressure transmitters can detect water, oil, and gas, and are generally versatile. However, water can be corrosive or non-corrosive, acidic or alkaline, and can contain impurities or be pure.
Is the pressure transmitter corrosion-resistant?
The conventional pressure sensor diaphragm is made of 316L material, and the housing is made of 304 stainless steel. It is generally fine for measuring common media, but if the measured medium is acidic or alkaline liquid, a corrosion-resistant pressure transmitter is required.
How to choose the range of a pressure transmitter?
The optimal maximum measurement range for a general sensor is 70% of the sensor's full scale. For example, if you need to measure a pressure of 70 bar, you should select a pressure transmitter with a range of 100 bar.
How high a temperature can the pressure transmitter withstand?
Since the signal of the pressure transmitter is converted through the electronic circuit part, under normal circumstances, the measurement medium temperature of the pressure transmitter is from -30 to +100 degrees. If the temperature is too high, a condensation bend is generally used to cool the medium, or a high-temperature pressure transmitter is used.
Huaibei Huadian Automation Technology Co., Ltd.
Email:8001@huadianauto.com
Address: University Science Park, Economic Development Zone, Xiangshan District, Huaibei City, Anhui Province
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