The MTPFU pressure transmitter adopts advanced diffused silicon sensor technology to achieve 0.1% ultra-high-precision measurement, and is widely used in the field of industrial automation control. This article provides an in-depth analysis of its working principle, and gives a detailed introduction to the technical features, selection guide, and installation precautions of series products such as DG1300-BZ-A-2-40/CJ/AM/FZ and JPB-CNM, helping technical evaluators fully understand the core advantages of diffused silicon pressure sensors.

Technical Principles and Core Advantages of Diffused Silicon Sensor Technology

As the core component of the MTPFU pressure transmitter, the diffused silicon pressure sensor operates based on the semiconductor piezoresistive effect. When external pressure acts on the silicon diaphragm, the resistance value of the Wheatstone bridge formed through ion implantation process changes precisely, and this change is converted into a standard electrical signal output through a dedicated ASIC chip. Compared with traditional strain gauge technology, diffused silicon sensors have three major characteristics: high sensitivity, good temperature performance, and excellent long-term stability, which is the fundamental reason why models such as DG1300-BZ-A-2-2.5/AA/SZWZH can achieve 0.1%FS accuracy.

Comparative Analysis of Technical Parameters of Typical Products

Industrial On-Site Installation Specifications and Precautions

According to the installation instructions for the PA-21R-16 pressure transmitter, the correct installation of the diffused silicon sensor directly affects measurement accuracy and service life. In harsh environments such as petrochemical industries, flange mounting is recommended and the pressure guide tube should be kept at the same temperature as the sensor; for explosion-proof models such as HM20-1-A1-F1-W2-T, the wiring specifications required by ATEX certification must be strictly followed. It is particularly important to note that when the medium temperature exceeds 125℃, a heat sink or capillary cooling system must be installed to prevent sensor zero drift caused by high temperature.

Selection Decision Tree and Common Misconceptions

When selecting models such as PBM4-13.B29R.A115.2663, technical evaluators often fall into three cognitive misunderstandings: first, excessively pursuing high accuracy while ignoring cost performance, whereas in fact 0.5% accuracy can already meet the needs of most process control applications; second, failing to consider medium corrosiveness, as ordinary 316L stainless steel diaphragms cannot resist chloride ion corrosion over the long term; third, overlooking lightning protection design, and for outdoor applications the JPB-CNM series with surge protection should be selected. The correct selection process should confirm in sequence: measured medium→pressure range→accuracy requirement→output signal→explosion-proof rating→process connection method.

Customized Solutions and Technical Support

For special application requirements such as PBM4-13.B38R.A115.2663, Xi'an Shenghongchuang can provide in-depth customization services, including: non-standard range customization (such as 0-0.6MPa low-pressure measurement), special material upgrades (Hastelloy diaphragm), multi-parameter combined measurement (pressure+temperature), etc. As a high-tech enterprise in Xixian New Area, we have a complete ISO9001 quality management system and a CNAS-certified laboratory. All DG1300 series products undergo 72-hour aging tests and three-point calibration before leaving the factory, ensuring that every shipped MTPFU pressure transmitter meets the promised technical specifications.

Why Choose Shenghongchuang Instruments

15 years of technical accumulation focused on the field of pressure measurement enables us to provide technical evaluators with: ① immediate delivery of more than 200 standard models; ② rapid response to customization requirements within 48 hours; ③ free sample testing and technical verification; ④ a super-long three-year warranty period. Welcome to consult online through our official website or call 029-88661234 to obtain detailed technical solutions for products such as DG1300-BZ-A-2-40/CJ/AM/FZ. Our engineers will design the most cost-effective measurement solution for you.