Beijing Aerospace Dingsheng Automation Technology Co., Ltd.

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Product Overview
The sensitive element of the series of intelligent differential pressure transmitters is a solid-state piezoresistive sensitive chip, which is filled with silicone oil between the chip and the two corrugated diaphragms. The measured differential pressure acts on the corrugated diaphragms at both ends, and the differential pressure is transmitted to the sensitive chip through silicone oil. The sensitive chip is connected to the signal processing circuit through wires. This product utilizes the piezoresistive effect of semiconductor silicon material to convert differential voltage into electrical signals. Since the signal output by the Wheatstone bridge on the sensitive chip has a good linear relationship with the differential pressure, accurate measurement of the measured differential pressure can be achieved, which is suitable for various gases and liquids in pipelines such as petroleum, chemical industry, electric power, and hydrology. differential pressure measurement.
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Product Features
◇ The product can adjust the zero point and full scale externally
◇ After temperature compensation and aging screening, the performance is stable and reliable
◇ Laser welding, fully Sealed structure, shell protection level
◇ Full stainless steel structure design, small size, light weight, easy to install
◇ The sensor is a diffused silicon piezoresistive differential pressure sensor, stainless steel isolation diaphragm
, performance parameters
) Range specification
Range code



Unit
Measuring range
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Forward allowed overvoltage





Negative allowable overpressure




Maximum static pressure

Stability performance
Minimum
Typical
Maximum
Unit
Accuracy
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%
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Zero point temperature error< br/> ～
% reference ℃
～
Full-scale temperature error
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～
Long-term stability

%/year

Static pressure effect
%, per