The MSWD-MSWD11 pressure transmitter adopts high-precision diffused silicon sensor technology and can still maintain stable performance under extreme working conditions. This article compares and analyzes its accuracy in liquid/gas pressure monitoring through measured data, providing selection reference for contract executors in the field of industrial automation. The anti-interference capability and long service life of the diffused silicon sensor make it an ideal choice for flow control equipment.

I. Technical Principles and Advantages of Diffused Silicon Sensors

The diffused silicon sensor is the core component of the pressure transmitter, and its working principle is based on the piezoresistive effect of silicon material. When pressure acts on the silicon diaphragm, the diaphragm undergoes micro deformation, causing a change in the resistance value embedded in it, thereby outputting an electrical signal proportional to the pressure. This technology has the following significant advantages:

• High Accuracy：The MSWD-MSWD11 pressure transmitter uses a high-quality diffused silicon sensor, with accuracy up to ±0.1%FS, far higher than traditional strain gauge sensors.
• Good Stability：Silicon material has a small coefficient of thermal expansion, low temperature drift, and excellent long-term stability, making it suitable for applications such as the HB-31C pressure transmitter that require high-precision measurement.
• Strong Anti-interference Capability：It has a built-in temperature compensation circuit, effectively suppressing the impact of ambient temperature changes on measurement results.
• Long Service Life：For example, the diffused silicon sensor used in the EDYBT-4 pressure transmitter has a service life of more than 10 years.

II. Comparison of Measured Performance Data Under Extreme Working Conditions

To verify the performance of the MSWD-MSWD11 pressure transmitter under extreme working conditions, we conducted a series of comparative tests, and the results are as follows:

1. High-temperature Environment Test

After continuous operation for 72 hours in an 85℃ high-temperature environment, the accuracy variation of the MSWD-MSWD11 was only ±0.15%, while the accuracy drift of ordinary piezoresistive sensors reached ±0.5%. This is due to its advanced temperature compensation algorithm and high-quality silicon material.

2. High-pressure Shock Test

Under a pressure shock of 150% of full scale, the MSWD-MSWD11 could still maintain stable output, while similar products such as the AST-L0250 pressure transmitter showed temporary output abnormalities under the same conditions. This indicates that the diffused silicon sensor has excellent overload protection capability.

III. Typical Applications in Flow Control Equipment

With its excellent performance, the MSWD-MSWD11 pressure transmitter plays a key role in various types of flow control equipment:

1. Liquid Flow Monitoring System

When used together with the PQ50-GB10CG12M4B pressure transmitter, it can accurately measure liquid pressure changes in pipelines and provide reliable data for flow calculation. Its corrosion-resistant design is particularly suitable for industries such as chemical and pharmaceutical.

2. Gas Pressure Control System

In scenarios such as natural gas transmission and air compressors, the KYB11G01M1PXC1-I pressure transmitter works in coordination with the MSWD-MSWD11 to ensure that system pressure remains stable within the set range.

3. Intelligent Instrument Supporting Solution

The MSZ-MSZ11 pressure transmitter can form a complete measurement system with the MSWD-MSWD11, transmitting data to the control center through a 4-20mA or RS485 interface to realize remote monitoring.

IV. Selection and Maintenance Recommendations

To ensure the long-term stable operation of equipment such as the TY-TY211 pressure transmitter, contract executors are advised to pay attention to the following points:

• Correct Installation：Avoid direct mechanical stress acting on the sensor, and use a dedicated bracket during installation.
• Regular Calibration：It is recommended to perform zero-point calibration every 6 months. Using MS-MS501 pressure transmitter accessories can simplify the calibration process.
• Environmental Protection：In corrosive environments, products with special protection ratings such as the 2200BGH-UA pressure transmitter should be selected.
• Original Manufacturer Accessories：When replacing the sensor, be sure to use genuine original manufacturer parts, such as the dedicated sensor for the EDYBT-4 pressure transmitter, to ensure compatibility and performance.

V. Summary and Action Guide

Measured data show that the MSWD-MSWD11 pressure transmitter, with its diffused silicon sensor technology, demonstrates outstanding accuracy and stability under extreme working conditions, making it an ideal choice for flow control equipment. As a professional high-tech enterprise, Xi'an Shenghongchuang Instrumentation Co., Ltd. provides complete solutions from sensors to supporting instruments.

Contact us now to obtain more technical parameters and selection recommendations. Our engineers will provide you with professional consulting services to help you choose the most suitable products such as the 2200BGH-UA pressure transmitter and optimize your flow control system.