Under extreme operating conditions, the performance of the diffused silicon sensor in the DG1300-BZ-B-2-0.2-CJ-AA pressure transmitter is of critical importance. Through 5 rigorous tests, this article reveals its core indicators such as high-temperature resistance and corrosion resistance, helping you select truly reliable industrial-grade pressure monitoring equipment. Xi'an Shenghongchuang Instrumentation experts guide you through the key points of model selection.

Technical Principles and Industry Challenges of Diffused Silicon Sensors

Diffused silicon pressure sensors convert pressure into electrical signals through the semiconductor piezoresistive effect, with the core being a Wheatstone bridge formed by diffusion on a silicon diaphragm. Compared with traditional strain gauge technology, the single-crystal silicon material used in DG1300-BZ-B-2-0.2-CJ-AA offers higher sensitivity（typical value 0.1%FS）and long-term stability. However, under extreme environments, operating conditions such as media corrosion, mechanical vibration, and sudden temperature changes can still cause fatal damage to the sensor, including zero drift and diaphragm rupture. According to statistics from the International Society of Automation (ISA), 35% of pressure monitoring failures in industrial sites are caused by insufficient environmental adaptability of sensors.

Comparison of 5 Extreme Environmental Performance Tests

1. High-Temperature Stability Test（-40℃~150℃）

Xi'an Shenghongchuang adopts a sensor chip body with a special glass-to-metal sealing process, reducing temperature error by 60% compared with conventional products within the range of -40℃~150℃, meeting the stringent requirements of the API 6A standard for oil and gas wellhead equipment.

2. Chemical Corrosion Test（96 hours salt spray/acid and alkali media）

Through the combined design of a Hastelloy C276 diaphragm and PTFE sealing components, the DG1300 series still maintains insulation resistance ＞100MΩ after 96 hours in a 5%NaCl salt spray environment. Comparative tests show that ordinary 316L stainless steel housing sensors have already exhibited obvious pitting corrosion under the same conditions.

3 Key Dimensions for Purchasing Decisions

1. Media Compatibility：It is necessary to confirm whether the contact medium contains corrosive components such as H2S and Cl-
2. Accuracy Class：For process control, it is recommended to select Class 0.2, while safety interlock requires Class 0.1
3. Certification Requirements：The chemical industry must meet SIL2/ATEX, while the food industry requires FDA certification

Common Model Selection Misconceptions FAQ

Q：Can diffused silicon sensors measure viscous media?
A：An isolation diaphragm needs to be installed. The DG1300-BZ-B-2-0.2-CJ-AA can be equipped with optional fluororubber or ceramic diaphragm structures to prevent the medium from clogging the pressure guide hole.

Q：How to determine whether a sensor is suitable for high-frequency vibration environments?
A：Check the mechanical vibration test report provided by the manufacturer. Shenghongchuang products have passed the IEC 60068-2-6 standard 10~2000Hz/20g vibration test.

Why Choose Shenghongchuang Instrumentation

As a national high-tech enterprise, we have a CNAS-certified laboratory and 20 pressure sensor patented technologies. The DG1300 series pressure transmitters have been successfully applied in extreme operating condition scenarios such as the PetroChina West-East Gas Pipeline Project and Baosteel blast furnace pressure monitoring, with an average trouble-free operating time exceeding 5万 hours. We provide free model selection consultation and 72-hour sample express delivery service. Call 029-8888XXXX now to obtain your exclusive solution.