The installation position of the diffused silicon piezoresistive pressure sensor directly affects measurement accuracy and equipment service life. This article focuses on products such as the CYG1003 pressure transmitter series, and provides operators with professional recommendations for selecting installation positions from the perspectives of medium characteristics, vibration environment, temperature influence, and other factors, helping you avoid measurement errors and equipment damage caused by improper installation.

I. Core Factors Affecting the Installation Position of Pressure Transmitters

In industrial sites, the installation position selection of diffused silicon piezoresistive pressure sensors such as the JP-40C pressure transmitter and DS-DS3000 pressure transmitter requires comprehensive consideration of the following key factors: medium characteristics (such as corrosiveness and viscosity), environmental vibration intensity, temperature gradient changes, pipeline pulsation conditions, etc. Taking the petrochemical industry as an example, if the sensor is installed within 3 meters of the pump outlet in a turbulent flow area, its measurement error may be as high as ±5%, far exceeding the nominal accuracy of 0.1%.

1.1 Relationship Between Medium Characteristics and Installation Position

For products such as the WY-131 pressure transmitter with remote transmission signals, when measuring high-viscosity media (such as heavy oil), it is recommended to install them on the upward section of a vertical pipeline to avoid bubble accumulation. According to the ISO 2186 standard, when measuring gas pressure, the installation point should be higher than the pressure tapping point, while for liquid pressure it should be lower than the pressure tapping point, which is consistent with the installation manual requirements of the domestic general-purpose pressure transmitter BYP300.

II. Technical Specifications for Typical Installation Scenarios

For different industrial scenarios, the installation position of the SMP-X pressure transmitter has strict specifications:

• Boiler system: It should be installed 4-8 pipe diameters downstream of the horizontal section of the steam pipeline, avoiding elbows and valves
• Hydraulic system: According to the DIN 3852 standard, it needs to be installed between the accumulator and the actuator
• Compressed air: It is recommended to install the PT124B-211 pressure transmitter 1.5 meters from the outlet of the air storage tank

2.1 Installation Solutions in Vibration Environments

When the CYG-CYG1003 pressure transmitter needs to be installed in a vibration environment (such as near a centrifugal pump), the following measures should be adopted: the natural frequency of the mounting bracket should be lower than 1/3 of the equipment vibration frequency; use flexible connecting pipes to buffer vibration; set damping devices with reference to the GB/T 17214.3 standard. Experimental data show that these measures can reduce vibration-induced errors by 70%.

III. Analysis of Common Misunderstandings About Installation Positions

Based on the analysis of maintenance cases of the WW-131 pressure transmitter, we found that 80% of early failures originate from installation errors:

IV. Professional Technical Support Services

As a national high-tech enterprise, Xi'an Shenghongchuang Instrumentation Co., Ltd. provides full life-cycle technical support for diffused silicon piezoresistive pressure sensors: from JP-40D pressure transmitter calibration to on-site installation guidance, our engineering team can customize the optimal installation solution for you. Contact us now to obtain your exclusive technical solution and enable your pressure measurement system to deliver 100% performance.