In the field of industrial automation, the HM20G-1-A1-F1-W2 pressure transmitter, as a representative product of diffused silicon sensors, has performance directly related to system stability. This article provides a professional comparative evaluation of 5 mainstream diffused silicon pressure transmitters (including FST800-501, DG1300 series, etc.), analyzing from dimensions such as accuracy, stability, and cost performance to help you determine which model is more suitable for gas/liquid pressure monitoring scenarios, assisting technical procurement personnel in making informed choices.

I. Technical Principle and Market Positioning of Diffused Silicon Pressure Transmitters

Diffused silicon pressure transmitters realize pressure signal conversion through the semiconductor piezoresistive effect, with their core advantages being high sensitivity and excellent long-term stability. In the current market, the FST800-501 pressure transmitter is well known for its military-grade sealing process, while the DG1300 series occupies more than 20% market share in the petrochemical field by virtue of its modular design. It is worth noting that the HM20G-1-A1-F1-W2 model produced by Xi’an Shenghongchuang Instrument Co., Ltd. adopts a third-generation temperature compensation algorithm, and can still maintain ±0.1%FS accuracy under operating conditions of -40℃~125℃, a metric that already exceeds the requirements of the EN 837-1 industrial standard.

II. Performance Parameter Comparison of 5 Mainstream Products

III. Adaptation Analysis of Typical Application Scenarios

For monitoring highly corrosive media in the chemical industry, the Hastelloy diaphragm equipped on the HM20G-1-A1-F1-W2 pressure transmitter shows clear advantages. A chlor-alkali project case shows that after 3 years of use, its zero drift is still controlled within 0.05%. Meanwhile, the DG1300-PJ-1-2-40/CJ/GK/GZ model, due to its intrinsic safety explosion-proof certification (ATEX/IECEx), is more suitable for hazardous locations such as petroleum tank farm areas. It is worth noting that although the BFY-1103 pressure transmitter is lower in price, it shows measurement fluctuations of about 0.3% under pulsating pressure environments, which should be carefully considered in pipeline systems with significant water hammer effects.

IV. Key Factors in Procurement Decision-Making

• Accuracy and stability: The HM20G series adopts laser trimming technology, and its temperature drift coefficient is 40% lower than conventional products
• Media compatibility: The PT124B-212-5MPa-ZG1/2 model can be optionally equipped with a ceramic diaphragm to handle strong acid environments
• Life cycle cost: Although the M-M5176 pressure transmitter has an initial purchase price 15% lower, its average maintenance cycle is only 18 months
• Certification requirements: The HT-PD model simultaneously meets CE, RoHS, and SIL2 certifications, making it suitable for equipment exported to the EU

V. Why Choose Shenghongchuang Instrument

As a national high-tech enterprise, we have 12 patented technologies in the pressure sensing field, and all products undergo 72-hour aging tests before leaving the factory. For popular models such as DG1300-BZ-B-2-1.6, we provide an ultra-long 3-year warranty and free calibration services. Our technical team can customize special range solutions for you (such as 0-0.1MPa micro-pressure measurement). Welcome to call 400-xxx-xxxx to obtain an exclusive model selection report.