China High-Precision 3051 Pressure Transmitter - China Suppliers & Factory for Industrial Applications Supplier, Factories

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The 3051 series is a top-tier, highly stable digital display intelligent transmitter designed for precision measurement. By leveraging advanced single-crystal silicon packaged sensor technology, this product excels in measuring pressure, flow rate, level, and density across a diverse range of media, including liquids, gases, and steam. As a leading solution among China suppliers and manufacturers, it supports multiple output formats tailored for various industrial control and regulation tasks, aligning perfectly with modern industrial system requirements. These output options include standard 4~20mA analog signals, optional HART communication protocol, and industrial bus protocols such as RS485-Modbus and FF.

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Thanks to the exceptional performance of the 3051 series, it finds extensive applications across multiple industrial sectors, including chemical, petrochemical, power, natural gas, pulp and paper, new energy, environmental protection, food and medicine, and smart cities. This versatility is further enhanced when used in equipment matching scenarios. With the reliability of its monocrystalline silicon sensor, the 3051 series meets various qualification certification standards, making it suitable for even the most demanding operational environments.

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Product Description

Product Specifications
Type Gauge pressure / Absolute pressure Ingress Protection IP67
Customized support OEM ODM OBM Model number GP/AP-3051
Membrane material 316L, Hastelloy, tantalum, Monel alloy, gold plated Range 6kPa – 40MPa
Measuring medium Liquid, gas or steam Accuracy ±0.05%、±0.075%、±0.1%
Material SS316 Output signal 4-20mA DC + HART, RS485, Zigbee, Foundation Fieldbus
Power supply 24V DC Operating temperature -40℃ ~ +85℃ / -20℃ ~ +65℃ (with display)
Long-term stability ±0.1% FS / 3 years Explosion-proof level Exd II CT6 、Exia II CT6
Advanced Sensor Technology
  • 1 Ultra-high precision single-crystal silicon material, silicon-silicon bonding, reducing stress effects
  • 2 High overload protection diaphragm, achieving high pressure overload and static pressure protection functions
  • 3 Ultra-high vacuum oil filling process
  • 4 Superior anti-interference capability
Multiple Corrosion-Resistant Materials
  • 1 Selection of isolation diaphragms such as stainless steel, Hastelloy alloy, Monel alloy, or 316L gold-plated materials
  • 2 Components such as the chamber, drain plug, and insertion cylinder assembly at the interface between the transmitter and the measured medium can be made of appropriate corrosion-resistant materials depending on the measured medium
  • 3 Ensures reliable operation of the product even in highly corrosive environments such as chlor-alkali salt production and seawater
Diverse Communication Solutions
  • 1 Meets various control and regulation tasks in the industry, such as providing HART and FF fieldbus interfaces
  • 2 Its products for factory automation also meet RS485 or IO-LINK bus systems
  • 3 Can provide customers with intelligent data cloud platforms and professional wireless sensor and transmitter solutions via NB-IoT / 4G / LoRaWAN, etc.
Application Areas
Tank level measurement in industries such as petrochemicals and food and drug storage
High-pressure sealing tests in metallurgical, chemical, and gas application applications
Pressure monitoring of valves before and after pumps in industries such as chemical, hydropower, and gas
Filter differential pressure signal monitoring in industries such as metallurgy and chemical engineering
Differential pressure measurement of high temperature steam pipeline
Boiler drum liquid level measurement
Frequently Asked Questions
Q What pressure ranges does the GP/AP-3051 pressure transmitter support?
The GP/AP-3051 supports a wide pressure range from 6 kPa to 40 MPa, covering both gauge pressure and absolute pressure measurement, making it suitable for a broad variety of industrial applications.
Q What output signal types and communication protocols are available?
The transmitter supports 4-20mA DC + HART, RS485, Zigbee, and Foundation Fieldbus. Wireless options including NB-IoT, 4G, and LoRaWAN are also available for smart cloud platform integration.
Q What membrane materials are available for corrosive media?
Multiple isolation diaphragm materials are available, including 316L stainless steel, Hastelloy, Monel alloy, tantalum, and 316L gold-plated options. This ensures reliable performance even in highly corrosive environments such as chlor-alkali salt production and seawater applications.
Q What is the accuracy and long-term stability of this transmitter?
The GP/AP-3051 offers accuracy levels of ±0.05%, ±0.075%, and ±0.1%. Its long-term stability is rated at ±0.1% FS over 3 years, ensuring consistent and reliable measurement performance.
Q Is the transmitter suitable for hazardous or explosive environments?
Yes. The transmitter carries an explosion-proof rating of Exd II CT6 and Exia II CT6, making it suitable for use in hazardous and explosive industrial environments. It also features an ingress protection rating of IP67.
Q Are OEM or custom orders supported for the pressure transmitter?
Yes. OEM, ODM, and OBM customization are fully supported. Tailored configurations including specific materials, pressure ranges, output signals, and communication protocols can be requested to meet unique application requirements.

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