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VEGABAR-GV3 Pressure Transmitter: How does a diffused silicon sensor accurately measure liquid and gas pressure?
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Analysis of Diffused Silicon Sensor Technology: The Core Advantages of the VEGABAR-GV3 Pressure Transmitter

The VEGABAR-GV3 pressure transmitter adopts advanced diffused silicon sensor technology to accurately measure liquid and gas pressure. As a core product of Xi'an Shenghongchuang Instrumentation Co., Ltd., this transmitter is widely used in the field of industrial automation. This article will provide an in-depth analysis of the working principle of diffused silicon sensors, and conduct a professional analysis of the key selection points and performance characteristics of series products such as PT124B-210 and DG1300, helping technical evaluators make informed choices.


Working Principle of the Diffused Silicon Sensor

The diffused silicon sensor is the core component of the VEGABAR-GV3 pressure transmitter, and its working principle is based on the piezoresistive effect. When pressure is applied to the silicon diaphragm, the diaphragm undergoes slight deformation, causing a change in the resistance value embedded within it. This change is converted into an electrical signal through a Wheatstone bridge, and after amplification and linearization processing, outputs a standard 4-20mA or 0-10V signal.

The diffused silicon sensor has the following significant features:

  • High accuracy: measurement accuracy can reach ±0.1%FS, meeting the demand for high-precision measurement in industrial automation
  • Good stability: small temperature drift and excellent long-term stability
  • Fast response speed: dynamic response time can reach the millisecond level
  • Strong overload capacity: can withstand 2-3 times the rated pressure

Comparison of Technical Parameters of VEGABAR-GV3 Series Products

ModelMeasuring RangeAccuracyOutput SignalInterface Type
PT124B-210-25MPa-M140-25MPa±0.25%FS4-20mAM14×1.5
DG1300-BZ-B-2-(-0.1-0.1)-0.1-0.1MPa±0.1%FS4-20mAG1/2
PT124B-210-100MPa-G1/40-100MPa±0.5%FS4-20mAG1/4

How to Select a Suitable Diffused Silicon Pressure Transmitter

When selecting pressure transmitters such as model P200S-GB10CG12M4S, technical evaluators should consider the following key factors:

  1. Measured medium: confirm whether the measured medium is liquid or gas, and whether it is corrosive
  2. Pressure range: select a measuring range 1.5 times higher than the actual maximum pressure to ensure a safety margin
  3. Accuracy requirements: select an appropriate accuracy grade according to process control requirements to avoid over-configuration
  4. Environmental conditions: consider the influence of environmental factors such as temperature, humidity, and vibration on the sensor
  5. Certification requirements: check whether special certifications such as explosion-proof, sanitary, or marine are required

Common Application Scenarios and Solutions

Products such as the HG-S3 pressure transmitter are widely used in the following fields:

Petrochemical Industry

In refining and chemical production processes, the PT-PT300 pressure transmitter can accurately measure pipeline pressure and ensure safe production. Its corrosion resistance enables it to adapt to various chemical media.

Water Treatment Systems

The SY-PG1300-1.6MPa-GB pressure transmitter is suitable for applications such as pump stations and wastewater treatment plants, and its IP68 protection rating enables it to adapt to humid environments.

HVAC Systems

In HVAC systems, the DG1300-BZ-A-2-0.1 pressure transmitter can accurately monitor refrigerant pressure and improve system energy efficiency.


Maintenance and Calibration Recommendations

To ensure the long-term stable operation of pressure transmitters such as model PT124B-210-100MPa-NPT1/4, it is recommended to:

  • Regularly check zero drift, and it is recommended to perform calibration every 6 months
  • Keep process connections clean to prevent medium crystallization or blockage
  • Avoid mechanical vibration and impact, and install vibration damping devices when necessary
  • When used in corrosive environments, select suitable diaphragm materials

Summary and Selection Recommendations

With its diffused silicon sensor technology, the VEGABAR-GV3 series pressure transmitters deliver excellent performance in the field of liquid and gas pressure measurement. As a professional manufacturer, Xi'an Shenghongchuang Instrumentation Co., Ltd. provides multiple series products from PT124B to DG1300 to meet the needs of different industrial application scenarios.

If you would like to learn more about the technical details or selection recommendations for diffused silicon liquid and gas pressure sensors, please feel free to contact our technical team. We will provide professional solutions and product recommendations based on your specific application requirements.

Contact us now to obtain customized pressure measurement solutions!

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