Is the abnormal display of the AO-X pressure transmitter troubling you? As the core component of industrial measurement, the stability of the diffused silicon sensor directly affects production safety. This article provides an in-depth analysis of common fault phenomena in models such as the PTS-PTS50X series and ZFBY3801, and offers practical solutions including calibration methods and accuracy grade evaluation, helping you quickly identify sensor issues in models such as TMS-GH186/YH-A and ensure the stable operation of BP-IN equipment.

Working Principle and Industry Background of Diffused Silicon Pressure Sensors

Diffused silicon pressure sensors are based on the piezoresistive effect principle, converting pressure signals into electrical signals through the Wheatstone bridge on the silicon chip. In the field of industrial automation, models such as PTS-PTS504 and PTS-PTS503 are widely used for liquid and gas pressure monitoring, with an accuracy grade up to 0.1%FS and an operating temperature range covering -40℃~125℃. With the upgrading of intelligent manufacturing, market demand for models such as TMS-QY110 has been growing at an annual rate of over 15%, especially in high-risk scenarios such as water treatment and petrochemicals, where the explosion-proof design of ZFBY-ZFBY3801 has become the industry standard configuration.

Common Fault Phenomena and Diagnostic Methods

When the AO-X pressure transmitter displays abnormalities, the following three types of issues should first be checked: 1) zero drift (manifested as the output signal deviating from 4mA under no pressure); 2) linearity abnormality (the actual pressure does not match the output curve); 3) overload damage (diaphragm deformation leading to permanent error). For BP-IN sensors, it is recommended to perform three-point calibration (0%, 50%, 100% range) according to the manual, and when using a standard pressure source to calibrate the YH-A model, attention should be paid to ambient temperature compensation.

Technical Parameter Comparison and Selection Guide

Collaborative Application of Displacement Measurement Technology

Under complex working conditions, it is often necessary to combine with domestic displacement sensor DP-S1V differential pull-rod linear displacement sensor spring-return inductive sensor for comprehensive monitoring. This product adopts a differential structure, with linearity ＜1%, and can measure mechanical displacement variables such as tension and vibration. Its contactless design is perfectly suited to the vibration compensation requirements of the TMS-QY110 pressure transmitter.

Why Choose Our Solution

As a national high-tech enterprise, Xi'an Shenghongchuang Instrumentation Co., Ltd. has all its diffused silicon sensors certified under ISO9001 and provides calibration services for the full PTS-PTS501 to PTS504 series. For special faults in the BP-IN model, we have developed a dedicated diagnostic toolkit that can remotely analyze the historical data curves of YH-A sensors. Contact our technical team now to obtain a customized maintenance solution for the ZFBY3801 model.