In the field of industrial gas detection, the CS-PT100 pressure transmitter has attracted much attention for its high-precision diffused silicon sensor technology. This article provides a measured analysis of this model’s stability, response speed, and cost-performance in gas pressure monitoring, offering professional reference for enterprises purchasing similar diffused silicon sensors such as P-P131 and DG-DG1205.

Technical Principles and Industry Applications of Diffused Silicon Sensors

Diffused silicon pressure sensors use the piezoresistive effect of semiconductor silicon materials, forming a Wheatstone bridge on the silicon diaphragm through ion implantation technology. When external pressure is applied, the resistance value of the bridge arms changes, generating an electrical signal output. Compared with traditional capacitive sensors, the diffused silicon technology used in CS-PT100 features high sensitivity（typical value up to 2mV/V）, and low temperature drift（±0.02%FS/℃）, making it particularly suitable for pressure monitoring of corrosive gases such as natural gas and LNG. Test data from Xi'an Shenghongchuang Instrument Co., Ltd. show that this technology can still maintain 0.1%FS linearity within the operating range of -40℃~125℃.

Measured Comparison Between CS-PT100 and Similar Products

We selected 5 mainstream diffused silicon pressure transmitters on the market for a continuous 72-hour test:

The test results show that CS-PT100 has clear advantages in dynamic response and long-term stability, and its IP65 protection rating and 100MΩ insulation performance make it more suitable for harsh environments such as the chemical industry. It is worth noting that the domestic liquid level transmitter PRC-916 fire water tank and pool liquid level sensor also uses diffused silicon technology, demonstrating similar performance advantages in the field of liquid level measurement.

Three Core Considerations for Enterprise Procurement

1.Media compatibility：The 316L stainless steel diaphragm of models such as HM-HM20 can resist H2S corrosion, while the special coating of YC-YC201 is suitable for moisture-containing gases
2. Certification system：BYP-BYP300 has passed ATEX explosion-proof certification, and WDK-WDK505 complies with the national standard GB/T 15478-2015
3. Life-cycle cost：Although YMWNK-YMWNK805 has a higher unit price, its ±0.1%FS accuracy can reduce energy loss by more than 3%

Technology Development Trends and Selection Recommendations

With the advancement of Industry 4.0, intelligent transmitters such as CS-FU have begun integrating RS485 communication and self-diagnosis functions. It is recommended that enterprise decision-makers pay attention to:
• Whether HART protocol support is required
• On-site wiring conditions（two-wire/four-wire）
• Convenience of later maintenance（such as the on-site zero adjustment function of CS-PT100）
As a high-tech enterprise, Xi'an Shenghongchuang provides a full range of solutions from basic models to intelligent models, and can offer customized services according to customer needs.

Why Choose Our Solutions

We have 15 years of experience in diffused silicon sensor R&D, and all products undergo 72-hour aging tests and temperature cycle tests before leaving the factory. For the special needs of gas detection, we can provide:
• Free technical solution consultation
• 48-hour sample delivery service
• 3-year extended warranty commitment
Contact our engineers now to obtain the complete test report and industry application cases for CS-PT100.