The model selection of the HG-HG400 pressure transmitter directly affects the stability of industrial processes. This article is aimed at technical evaluation personnel and provides a detailed explanation of the golden rules for medium characteristics and range selection, helping you avoid key issues such as corrosive medium compatibility and range-accuracy matching. The selection of diffused silicon sensors requires simultaneous consideration of fluid characteristics and operating condition parameters. Xi'an Shenghongchuang Instrumentation will provide you with professional solutions.

Key Influence of Medium Characteristics on Pressure Transmitter Selection

In the field of flow control equipment, medium characteristics are the primary factor in the selection of the HG-HG400 pressure transmitter. Corrosive media such as chlorine, strong acids, and strong alkalis will directly corrode the sensor diaphragm, while high-viscosity fluids may cause blockage in the measuring chamber. For such operating conditions, products with a 316L stainless steel isolation diaphragm structure must be selected, such as Domestic differential pressure transmitter STZ4 diffused silicon integrated differential pressure transmitter, whose corrosion resistance can meet the stringent requirements of the chemical industry. At the same time, attention should be paid to the medium temperature parameters. When exceeding the standard -10~70℃ range, a customized high-temperature compensation module is required to ensure measurement accuracy.

Three Golden Rules for Range Selection

Improper range selection may lead to premature equipment damage or insufficient measurement accuracy. According to the ASME B40.100 standard, it is recommended to follow the principles below: first, the normal working pressure should be between 60%~75% of the range. For example, when the TS-TS205 pressure transmitter is used to measure a 2MPa system, a 3MPa range is recommended; second, pressure fluctuation factors should be considered, and the peak pressure must not exceed 125% of the range; finally, a 10% overload margin should be reserved, which is consistent with the 150%FS overload pressure design concept of the STZ4 model. Special reminder: for pipeline systems with water hammer effects, a diffused silicon sensor with impact-resistant design should be selected.

Analysis of Core Parameters of Diffused Silicon Technology

The working principle of the diffused silicon pressure sensor is based on the piezoresistive effect, and its performance indicators directly affect selection decisions:

Typical Selection Misunderstandings and Solutions

Technical evaluation personnel often fall into the following misunderstandings: focusing only on procurement cost while ignoring maintenance cost——although the initial price of PTB-PTB511 is relatively high, its stability of ≤0.2%FS/year can reduce calibration frequency; excessively pursuing high accuracy——for HVAC systems, choosing the PT500-708 pressure transmitter with 0.5 accuracy class is sufficient to meet requirements; ignoring installation method——in pipeline vibration scenarios, priority should be given to STZ4 series products with anti-vibration design. The selection consulting services provided by Xi'an Shenghongchuang Instrumentation can help customers avoid these common problems.

Why Choose Xi'an Shenghongchuang Instrumentation

As a national high-tech enterprise, we have 15 years of R&D experience in diffused silicon sensors, and all products have passed CE and RoHS certification. For special operating conditions, we can provide medium compatibility testing services and support customized external structural design. Our engineering team has provided professional solutions for fields such as aerospace and medical equipment, and is familiar with the requirements of the ISO 9001 quality management system. If you need the complete selection manual or technical consultation for the HG-HG400 pressure transmitter, please contact the professional technical support team at our headquarters in Xixian New Area.