When selecting the DG1300-BZ-B-2-1.6 pressure transmitter, how to identify a genuine diffused silicon sensor has become a key pain point for technical procurement. This article focuses on models such as FST800-501 and HM13-10-250, revealing 3 core identification techniques to help evaluators quickly identify high-quality diffused silicon liquid and gas pressure sensors and avoid procurement risks.

I. Core Characteristics and Industry Standards of Diffused Silicon Sensors

As a core component in the field of industrial measurement, the performance of diffused silicon pressure sensors directly affects the measurement accuracy and stability of pressure transmitters such as the DG1300-BZ-B-2-1.6. According to the requirements of the ISO 9001:2015 quality management system, genuine diffused silicon sensors must have three basic features: first, the sensing element should use single-crystal silicon material and form a Wheatstone bridge through ion implantation technology; second, the all-welded stainless steel diaphragm structure must pass 100,000 pressure cycle tests; finally, the compensation circuit must comply with the temperature drift range specified by the IEC 60770-1 standard (±0.5%FS/10℃). Models such as HM20G-1-A1-F1-W2 produced by Xi'an Shenghongchuang Instrumentation Co., Ltd. all use imported German silicon chips and achieve a high linearity of 0.1%FS through laser trimming technology.

II. Practical Analysis of 3 Genuine Product Identification Techniques

1. Microscopic Structure Inspection Method

Using a 100x industrial microscope to observe the sensor chip of models such as PT124B-212-5MPa-ZG1/2, genuine diffused silicon sensors will present a regular rectangular resistor strip array, while counterfeit and inferior products often show etching burrs or pattern distortion. Professional evaluators can quickly identify refurbished or imitation components by comparing them with the chip micrograph library of the BFY-1103 pressure transmitter.

2. Dynamic Response Test Method

Connect the DG1300-PJ-1-2-40/CJ/GK/GZ pressure transmitter to a standard pressure source. When a step signal is applied, the response time of a genuine diffused silicon sensor should be ≤1ms (according to the JJG 882-2019 verification regulation). Test data show that due to packaging process defects, counterfeit and inferior products often exhibit obvious oscillation or delay in their response curves.

3. Environmental Adaptability Verification

Within the temperature range of -40℃~125℃, the zero-point drift of a genuine M-M5176 pressure transmitter should be less than 0.3%FS. It is recommended to use a constant temperature chamber to conduct extreme temperature tests on the HT-PD model. Counterfeit and inferior products often show signal jumps in the low-temperature section and output attenuation in the high-temperature section.

III. Market Status and Procurement Strategy Analysis

At present, there are significant price differences in the diffused silicon liquid and gas pressure sensor market. Taking DG1300-BZ-A-2-1 as an example, the unit price range of genuine products is 1800-2500 yuan, while imitation products may be priced as low as 600-800 yuan. However, technical evaluation should focus on the total cost of ownership (TCO), including:

IV. Professional Technical Service Assurance System

As a high-tech enterprise in Xixian New Area, we provide triple assurance for models such as FST800-501: ① Each DG1300-BZ-B-2-1.6 pressure transmitter comes with a CNAS-certified test report; ② A sensor lifecycle management system is established to provide predictive maintenance recommendations; ③ A 72-hour emergency response mechanism is in place, equipped with a professional calibration laboratory. Business evaluators can obtain customized solutions by calling 400-xxx-xxxx, and the technical team can provide comparative testing services for models such as HM13-10-250.

V. Clarification of Common Technical Misconceptions

• Misconception 1: "Diffused silicon sensors are suitable for corrosive media" - In fact, selection should be based on the diaphragm material of different DG1300 series models (such as 316L and Hastelloy)
• Misconception 2: "The larger the range, the higher the accuracy" - The HT-PD pressure transmitter can achieve an accuracy of 0.1% at a 1.6MPa range, but at a 40MPa range it is usually 0.25%
• Misconception 3: "IP65 protection equals complete waterproofing" - For underwater applications, products in the PT124B-212 series with an IP68 protection rating should be selected

Why Choose Xi'an Shenghongchuang

With 15 years of focus on the field of pressure measurement, we hold 23 patents related to diffused silicon sensors, and products such as the DG1300-BZ-B-2-1.6 have passed SIL2/ATEX certification. We provide full-process services from model selection consulting to on-site installation. Typical customers include large enterprises such as PetroChina Changqing Oilfield and Shaangu Power. Click the online customer service on the official website to obtain the latest technical white paper and quotation list for the HM13-10-250 pressure transmitter.