In the field of industrial automation, the HT-805 pressure transmitter, as a core sensor based on diffused silicon technology, has performance and reliability that directly affect production safety and efficiency. This article provides an in-depth analysis of the actual performance of this domestic sensor from the perspectives of technical parameters, measured data, and cost performance for technical evaluators and corporate decision-makers, helping you determine whether this diffused silicon liquid and gas pressure sensor is worth purchasing.

I. Technical Principle and Market Status of Diffused Silicon Pressure Sensors

Diffused silicon pressure sensors utilize the piezoresistive effect of semiconductor materials and sense pressure changes through precision-machined silicon diaphragms, featuring high sensitivity and good stability. At present, mainstream brands in the domestic market include models such as HT-805, ST-ST950, and LED-900. Among them, the domestic level transmitter CS-PT440 LCD display explosion-proof level sensor produced by Xi'an Shenghongchuang Instrumentation Co., Ltd. adopts similar diffused silicon technology and has accumulated extensive application experience in high-risk fields such as petroleum and chemical engineering.

1.1 Comparative Analysis of Core Performance

II. Measured Performance of the HT-805 Pressure Transmitter

According to data from third-party testing institutions, the HT-805 performs outstandingly in the following key indicators: long-term stability reaches ±0.2%FS/year, and it can still maintain linear output when the overload pressure is 150%FS. However, compared with imported brands such as CY-CY3018, its zero-point temperature drift (±2%FS) requires more frequent calibration under extreme working conditions. This model adopts a 316L stainless steel housing with a protection rating of IP65, making it suitable for most industrial scenarios.

III. Key Factors in Procurement Decision-Making

• Cost-effectiveness:The price of HT-805 is დაახლოებით 60% of imported brands, but the maintenance cycle is shortened by 30%
• Alternative solution:CHR-CHR3000 adopts ceramic capacitive technology, making it more suitable for highly corrosive media
• Certification standard:Complies with GB/T 34036-2017 safety requirements for industrial automation instruments

IV. Customer Cases and Industry Applications

In a large petrochemical project, the HT-805 was used together with the domestic level transmitter CS-PT440 to achieve pressure-level interlock control for storage tanks, with the system error controlled within 0.5%. It is worth noting that when the medium viscosity exceeds 50cSt, it is recommended to select the BP-BP200 series with flange-mounted installation.

V. Frequently Asked Questions in Technical Evaluation

Q: What are the limitations of diffused silicon sensors in gas measurement?
A: Limited by the diaphragm structure, the HT-805 requires a damper to be installed when measuring pulsating gas flow, while the resonant technology used in DG-DG1210 is more suitable for scenarios with high-frequency pressure fluctuations.

Why Choose a Professional Manufacturer

As a national high-tech enterprise, we have a complete pressure sensor product matrix, and both the HT-805 and the CS-PT440 series adopt imported raw materials and laser trimming processes. All products undergo 72-hour aging tests before leaving the factory, come with an extra-long 18-month warranty, and our technical team can provide selection calculation documents and on-site installation guidance.