Introduction

Are you looking for a high-precision diffused silicon Hesman pressure sensor like VEGABAR-14? As a professional supplier of flow control equipment, we will provide an in-depth analysis of its working principle. From YM-1JY to PTG485 and many other models, whether it is installation dimension drawings or alarm control functions, this article will provide technical evaluators with comprehensive technical analysis and a purchasing guide.

Working Principle of the Diffused Silicon Hesman Pressure Sensor

The diffused silicon Hesman pressure sensor is a precision measurement device based on the semiconductor piezoresistive effect, and its core component is a single-crystal silicon chip. When external pressure acts on the silicon diaphragm, the silicon diaphragm undergoes slight deformation, causing changes in the internal resistance value. This change is converted into an electrical signal output through a Wheatstone bridge, thereby achieving the function of pressure measurement.

The VEGABAR-14 pressure transmitter adopts advanced diffused silicon technology and has the following technical features:

• Measurement accuracy as high as ±0.1%FS, meeting the high-precision requirements of industrial process control
• Wide temperature compensation range (-40~125℃), ensuring stability in various environments
• All-stainless-steel structure, strong corrosion resistance, suitable for harsh working conditions
• Output signal 4-20mA+HART protocol, convenient for system integration

Technical Specifications of the VEGABAR-14 Pressure Transmitter

As a representative product of diffused silicon Hesman pressure sensors, the technical parameters of VEGABAR-14 require special attention:

Compared with similar products, the PTG485 pressure transmitter performs outstandingly in anti-interference capability, and is particularly suitable for industrial sites with complex electromagnetic environments. Meanwhile, the SP-112G model is known for its compact size design, making it suitable for installation occasions with limited space.

Application Scenarios of Different Pressure Transmitter Models

According to different industrial needs, diffused silicon Hesman pressure sensors have developed into multiple models:

• YM-1JY：Basic industrial type, highly cost-effective, suitable for routine pressure monitoring
• PRC-905：Special model for chemical applications, using special sealing materials, with strong corrosion resistance
• TPT503：With alarm control function, upper and lower alarm values can be set
• CPS2016：With remote transmission signal function, supports RS485 communication
• HBP-800D：Food and pharmaceutical grade, compliant with hygienic design standards

Installation and Maintenance Guide

Correct Installation Method

The installation quality of the diffused silicon Hesman pressure sensor directly affects measurement accuracy and service life. Taking SP-111G as an example, the correct installation steps include:

1. Confirm that the process connection size matches the pipeline
2. Thoroughly clean the connection parts before installation
3. Use appropriate sealing materials (such as PTFE gaskets)
4. Avoid mechanical stress during installation
5. Pay attention to correct polarity in electrical connections

Special attention should be paid to the installation of the JN-8001 model: in occasions with relatively large vibration, shock-absorbing brackets should be installed; for corrosive media, it is recommended to add diaphragm isolation protection.

Key Points for Routine Maintenance

To ensure the long-term stable operation of the diffused silicon Hesman pressure sensor, the following maintenance specifications should be followed:

• Regularly check sealing performance to prevent medium leakage
• Carry out zero-point calibration every quarter
• Keep the electrical connection parts dry and clean
• Avoid use beyond the rated pressure range
• Record operating data and establish equipment health files

Xi'an Shenghongchuang Instrument Co., Ltd. provides a one-year warranty service for products of all models, and specific models such as PRC-905 can be extended to 18 months.

Technical Selection Recommendations

When selecting a diffused silicon Hesman pressure sensor, technical evaluators should consider the following key factors:

• Measurement range：When selecting the range, a safety factor of 1.5 times the working pressure should be considered
• Accuracy requirement：±0.5% is sufficient for routine process control, while precision measurement requires ±0.1% or higher
• Medium characteristics：Corrosive media require sensors made of special materials
• Environmental conditions：High-temperature, humid, or vibration environments require corresponding protection ratings
• Signal output：Select 4-20mA, HART, or RS485 according to the control system interface

For occasions requiring alarm control, TPT-TPT503 is an ideal choice; while systems requiring remote monitoring are more suitable for selecting the CPS-CPS2016 model with remote transmission signals.

Summary and Professional Recommendations

With its advantages of high precision and good stability, the diffused silicon Hesman pressure sensor has become a key measuring device in industrial process control. As a representative product, VEGABAR-14 is widely used in industries such as petrochemicals, electric power and energy, and water treatment. Correct model selection, standardized installation, and regular maintenance are the keys to ensuring the long-term reliable operation of the sensor.

As a professional pressure sensor manufacturer, Xi'an Shenghongchuang Instrument Co., Ltd. can provide you with comprehensive services ranging from technical consultation and product selection to installation and commissioning. Our engineering team has extensive industry experience and can recommend the optimal solution according to your specific working conditions.

If you need detailed technical information on the VEGABAR-14 pressure transmitter or dimension drawings for specific models, please contact our technical consulting team immediately.We promise to respond to your professional inquiries within 1 working hour and provide free technical support services.