Analysis of Diffused Silicon Sensor Technology and Adaptability to Dual Operating Conditions

The CEMPX215-GATCA1 pressure transmitter adopts advanced diffused silicon sensor technology to accurately address the challenges of dual liquid/gas operating conditions. As a core product of Xi'an Shenghongchuang Instrumentation Co., Ltd., its outstanding performance has been widely validated in the industrial field. This article will provide an in-depth analysis of the working principle of diffused silicon sensors, and compare the technical features of models such as KYB-Z04 and CS-PT1200V to help engineering procurement personnel make informed choices.

Working Principle and Structural Advantages of Diffused Silicon Sensors

The core of the diffused silicon pressure sensor lies in the piezoresistive effect of a monocrystalline silicon chip. When medium pressure acts on the isolation diaphragm, it is transmitted to the silicon chip through the filling liquid, causing a change in the resistance value of the Wheatstone bridge. The CEMPX215-GATCA1 adopts a dual isolation diaphragm design, with accuracy reaching ±0.1%FS under gas operating conditions and maintaining ±0.25%FS stability during liquid measurement. Compared with traditional strain gauge technology, its temperature drift coefficient is less than 0.02%/℃ (-20~80℃ range), which is precisely the key reason why models such as EDYBT-49 are highly favored in chemical process control.

Horizontal Comparison of Technical Parameters of Mainstream Models

Typical Application Cases in Industrial Scenarios

In a large LNG storage and transportation project in Shaanxi, the CEMPX215-GATCA1 and BAR-GP1 formed a redundant measurement system, successfully achieving pressure control accuracy of ±0.15% in a low-temperature environment of -162℃. Its specially designed 316L stainless steel isolation diaphragm combined with a Hastelloy impulse pipe effectively resisted hydrogen sulfide corrosion. Meanwhile, the ZWP-L61-K model, in the pure steam sterilization process of a pharmaceutical plant, ensures zero contamination risk during measurement through an FDA-certified hygienic connection structure.

Five Key Considerations for Procurement Decision-Making

1. Medium characteristic matching: corrosive media require the special PTFE-coated version of HQ-HQ1002
2. Range coverage capability: refer to the 1:10 turndown ratio design of KYB18G07M1P4C3-I
3. Certification requirements: the petrochemical industry must comply with SIL2 certification, and the food industry requires a 3.1 material certificate
4. Output signal type: BSCYG9010-1.0 supports both HART protocol and 4-20mA outputs
5. Maintenance convenience: the on-site LCD display of CFUEIIIERC1 enables quick diagnosis of fault codes

Why Choose Shenghongchuang Instrumentation

As a national high-tech enterprise, we have a CNAS-certified sensor calibration laboratory, and all diffused silicon sensors undergo a 72-hour aging test before leaving the factory. For complex models such as CFUEIIIERC1, we provide free technical disclosure services and an extra-long 3-year warranty. Contact our engineering team now to obtain the comparative test report of KYB-Z04 and CS-PT1200V, as well as customized selection solutions.