In the field of industrial automation, the performance of the JVPL16 pressure transmitter has attracted significant attention, especially how models using diffused silicon sensors balance accuracy and stability under extreme environments? This article provides an in-depth comparison of the advantages and disadvantages of mainstream models such as DG1300-BZ-A-2-4/AF and the FST800 series, analyzes the core parameters and selection points of diffused silicon sensors in liquid and gas pressure measurement for technical evaluators, and helps you accurately match application requirements.

I. Technical Principle and Industry Background of Diffused Silicon Sensors

Diffused silicon pressure sensors are based on the semiconductor piezoresistive effect, realizing pressure-electrical signal conversion through a Wheatstone bridge on the silicon chip. Compared with traditional strain gauge technology, its sensitivity is improved by more than 30%, and temperature drift can be controlled within the range of ±0.02%FS/℃ (in compliance with IEC 60770 standards). The JVPL16 series of Xi'an Shenghongchuang Instrumentation Co., Ltd. adopts third-generation MEMS diffused silicon technology, and can still maintain 0.1%FS accuracy within the operating range of -40℃~125℃, a feature that gives it a technical advantage in extreme working conditions such as oil and gas pipelines and chemical reaction vessels.

II. Performance Comparison of Mainstream Models in Extreme Environments

III. Key Procurement Evaluation Factors

Technical evaluators should focus on the following parameters: 1) Medium compatibility: 316L stainless steel isolation diaphragm can handle strongly corrosive media; 2) Overload capacity: for example, model FST800-501P341G-400B has 300%FS safe overload; 3) Explosion-proof certification: the BAR-ZZAZ series has passed dual ATEX/IECEx certification; 4) Output signal: 4-20mA+HART protocol is more suitable for smart factory requirements than pure analog signals. It is worth noting that older models such as TK-509-10, due to the use of ceramic sensors, are prone to microcracks under frequent pressure pulsation scenarios.

IV. Customer Practice and Common Misunderstandings

In the measurement of acidic gas at a refinery in Northwest China, the originally used model PD50-AB100BM20M4B failed because the sealing material was not resistant to H2S corrosion. After being replaced with the Shenghongchuang JYB-JYB series model with special PTFE sealing, the service life was extended to more than 3 years. Common selection misunderstandings include: 1) ignoring the risk of medium crystallization (a protruding diaphragm structure is required); 2) underestimating the impact of vibration (models filled with damping oil should be selected); 3) excessively pursuing accuracy (the difference between 0.1%FS and 0.25%FS may not be obvious under actual working conditions).

V. Why Choose Xi'an Shenghongchuang

As a national high-tech enterprise in Xixian New Area, we provide: 1) an extra-long 24-month warranty; 2) free working condition analysis services; 3) full certification support for CE/ROHS/SIL2; 4) customized silicone oil filling solutions to cope with -50℃ ultra-low-temperature environments. For special models such as FST800-211G241I, third-party CNAS test reports can be provided to verify quality reliability. Contact our engineering team now to obtain the "Diffused Silicon Sensor Selection White Paper" and the JVPL16 pressure transmitter technical specification.