The DMU-DMU01 pressure transmitter adopts advanced diffused silicon technology and delivers outstanding performance in liquid and gas pressure measurement applications. This article provides an in-depth analysis of its performance features to help technical evaluators understand the measured performance of this diffused silicon liquid and gas pressure sensor. From accuracy to stability, it offers you a comprehensive evaluation of the practical application value of this professional-grade pressure transmitter.

I. Core Advantages of Diffused Silicon Technology

As an innovative technology in the field of pressure measurement, diffused silicon sensors achieve high-sensitivity signal conversion through the piezoresistive effect of semiconductor silicon materials. The DMU-DMU01 pressure transmitter uses a single-crystal silicon chip with a Wheatstone bridge structure formed by ion implantation process, and its linearity error can be controlled within ±0.1%FS, with a temperature drift coefficient better than ±0.02%/℃. Compared with traditional strain gauge technology, the diffused silicon solution offers better long-term stability （typical value ≤±0.1%FS/year）, making it especially suitable for continuous process control in industries such as petrochemicals and pharmaceuticals.

In terms of media compatibility, the DMU-DMU01 comes standard with a 316L stainless steel isolation diaphragm. Through a special welding process, it achieves stress-free sealing with the silicon chip and can measure gases, liquids, and corrosive media within the range of -0.1~60MPa. Test data show that after continuous operation for 2000 hours in an 80℃ saturated steam environment, its zero-point drift remains below 0.05%, far exceeding the Class 0.25 requirements of the IEC 60770 standard.

II. Measured Analysis of Key Performance Parameters

Through comparison with similar products such as HSLYH-HSLYH1 and PT223B-G, the DMU-DMU01 stands out in dynamic response speed, with a step response time of ≤1ms, making it particularly suitable for transient pressure monitoring in hydraulic systems. The built-in digital temperature compensation algorithm reduces full-scale temperature error by 60%, and this technology has obtained an invention patent （ZL202010XXXXXX.X）.

III. Analysis of Typical Application Scenarios

In the natural gas transmission and distribution field, the DMU-DMU01, with its IP67 protection rating and intrinsically safe explosion-proof certification （Ex ia IIC T6）, has been successfully applied in 20 booster stations of the Shaanjing pipeline. Its unique pulse damping design effectively suppresses pressure fluctuations caused by compressors, and together with 4-20mA+HART output, achieves ±0.2% custody transfer metering accuracy.

In the pharmaceutical industry, the 3-A sanitary certified version of this transmitter （JA-YB202-S） has been deployed in the bioreactor pressure monitoring system of Hengrui Pharma. The all-welded structure avoids the aging risk of O-rings, and the surface roughness design of Ra≤0.8μm is more compliant with FDA cGMP specification requirements.

IV. Professional Guide for Procurement and Selection

Technical evaluators should focus on the following parameter matching:

• Range selection:It is recommended that the working pressure be within 30%~80% of the range, for example, for measuring 10MPa steam, choose the YT-YX series with a 16MPa range
• Output signal:For smart models, choose HART/RS485; for explosion-proof locations, intrinsically safe model ZRN-ZRN201 is required
• Process connection:ANSI B16.5 flanges are recommended for chemical pipelines, while clamp-type PT210B-S is suitable for the food and pharmaceutical industries
• Certification requirements:Offshore platforms require DNV/GL certification, and the rail transit field should comply with the EN 50155 standard

V. Why Choose Shenghongchuang Instruments

As a national high-tech enterprise, Xi'an Shenghongchuang Instrument Co., Ltd. possesses a complete independent industrial chain for diffused silicon sensors, achieving full-process control from single-crystal silicon chip processing to transmitter assembly. Our BPL-BPL series products have passed SIL2 functional safety certification and come with an extra-long 3-year warranty service. Our engineering team can customize special ranges （such as 0-100kPa micro-pressure measurement） and special interfaces （such as the JY-131 version with NPT threads） for customers.

Call 029-XXXXXXX now to obtain an exclusive technical solution for the DMU-DMU01 pressure transmitter, or visit the official website to check detailed parameters of the full range of diffused silicon products such as the HSLYH-HSLYH pressure transmitter. Professional technical engineers will provide you with selection calculation documents and industry application white papers.