GPD10 intrinsically safe pressure sensor for mining
GPD10 intrinsically safe pressure sensor for mining is mainly used for monitoring the pressure of drainage pipelines
Product Overview
The GPD10 intrinsically safe pressure sensor for mining is mainly used for monitoring the pressure of drainage pipelines and can be used in mining environments with gas and coal dust explosion hazards. The sensor has a pressure collection and display function, and converts the collected pressure value into a two-wire current signal for transmission, making it convenient to connect with the automatic control system.
pressure monitoring
Electronic strain gauges are the main detection components, and digital tubes display pressure values on site, outputting 4-20mA; measurement range: 0-10 MPa, measurement range: 0-10 MPa;
easy to use
The pressure sensor consists of a housing, pressure-sensitive elements, external leads, etc., with a simple structure; The sensor is fixedly installed on the drainage pipeline, with an interface specification of M20; Quick connect plug, easy to install and flexible to use.
Powerful
Display pressure changes on site and convert the collected pressure values into two-wire current signals for transmission; It can be easily connected to various automatic control systems, providing accurate and reliable data for the control system.
Working Principle
pressure detection
Electronic strain gauges, as the core detection components, undergo deformation under pressure, resulting in changes in resistance values. The pressure signal is converted into a weak electrical signal through a Wheatstone bridge circuit, amplified, and output preliminary pressure data.
Signal Conversion and Transmission
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The internal circuit of the sensor converts the amplified electrical signal into a two-wire 4-20mA current signal, which is transmitted to the control system through twisted pair cables. The current loop design has strong anti-interference ability and is suitable for long-distance underground environments, while achieving integration of power supply and signal transmission.
Display and output
The digital tube displays the current pressure value in real-time for on-site personnel to view; The 4-20mA current signal is synchronously output to the PLC or DCS system, supporting remote monitoring and alarm linkage to ensure timely feedback and control of pressure data.
Structural Composition
housing
304 stainless steel shell, rust and corrosion resistant. Durable, strong, and resistant to high temperatures.
detection element
Long term operation with high reliability and precise pressure monitoring. Good cycle stability and signal-to-noise ratio.
display screen
High resolution and clear numerical display. Explosion proof safety, strong applicability and durability.
joint
Quick connect plug, easy to plug and unplug. Standard threaded joint, easy to install.
Project Case
Guonuo weighing equipment has been successfully applied to multiple domestic and foreign enterprises and has gained widespread recognition
Production Process
Guonuo Technology adopts internationally leading production processes and equipment to ensure stable and reliable quality
Strain gauge pressure detection
Electronic strain gauges are used as the core detection element to sense pressure through resistance changes. Combined with Wheatstone bridge circuits, physical quantities are converted into electrical signals to achieve accurate measurement in the range of 0-10MPa, outputting 4-20mA standard current signals to ensure data accuracy and transmission reliability.
Intrinsic safety explosion-proof design
The sensor has passed the intrinsic safety explosion-proof certification and coal safety qualification, and uses a 304 stainless steel shell to enhance structural strength and corrosion resistance; The IP54 protection level effectively isolates flammable and explosive environments such as gas and coal dust, ensuring the safety of underground operations.
Two wire signal transmission
Integrated two-wire current output design, converting pressure values into 4-20mA signals, supporting long-distance transmission and strong anti-interference; The digital tube displays real-time pressure on-site for easy monitoring, and seamlessly integrates with automatic control systems such as PLC and DCS.
Modular quick connect installation
The simplified structure consists of a shell, pressure-sensitive components, and external leads, with an interface specification of M20 suitable for drainage pipes; Equipped with quick connect plugs for quick disassembly and assembly, flexible installation and convenient maintenance, significantly improving the efficiency of underground deployment.
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Sustainable Development Commitment
Guonuo Technology integrates the concept of sustainable development into the weighing industry, committed to balancing resource development and environmental protection
Environmental protection
- Invest 200 million yuan to build a mine water treatment system, with a water recycling utilization rate of 95%
- Adopting a closed coal transportation system to reduce dust emissions by over 80%
- Implementing the mine land reclamation plan, 1200 acres of vegetation have been restored
social responsibility
- Provide over 500 job opportunities for the surrounding communities of the mining area
- Invest in the construction of 3 Hope Primary Schools and 2 Community Medical Centers
- Annual investment of 10 million yuan for community development and poverty alleviation projects
Future goals
- Reduce carbon emissions intensity in production processes by 20% by 2030
- Invest 500 million yuan to develop low-carbon coal washing technology and clean utilization technology
- Realize 100% land reclamation and ecological restoration of mines by 2030
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