CE Certification High-Precision 3051 Pressure Transmitter | China Suppliers & Factory for Industrial Applications Manufacturers, Factories

The 3051 series is a top-tier, highly stable digital display intelligent transmitter designed for precision measurements in various industrial applications. Manufactured in China with state-of-the-art technology, this transmitter uses advanced single-crystal silicon packaged sensor technology to accurately measure pressure, flow rate, level, and density across multiple media, including liquids, gases, and steam, As one of the leading suppliers in the industry, we understand the importance of versatility. The 3051 series supports multiple output formats tailored to meet diverse industrial control and regulation demands. Its compatibility with standard 4~20mA analog signals, optional HART communication protocol, and industrial bus protocols like RS485-Modbus and FF makes it an exceptional choice for modern industrial systems, The superior performance of the 3051 series enables its widespread application in vital sectors such as chemical, petrochemical, power, natural gas, pulp and paper, new energy, environmental protection, food and medicine, and smart cities. Our factory ensures that this product meets rigorous qualification certification requirements, making it suitable for even the most complex working conditions. Experience the reliability and efficiency of the 3051 series, your trusted solution for industrial measurement needs

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 Temp.
-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, Harbin alloy, Monel alloy, or 316L gold-plated materials.

2

Components such as the chamber, drain plug, and insertion cylinder assembly at the interface can be made of appropriate corrosion-resistant materials.

3

Ensures reliable operation 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

Products for factory automation also meet RS485 or IO-LINK bus systems.

3

Provides intelligent data cloud platforms and professional wireless sensor solutions via NB-IoT/4G/LoRaWAN.

Application Areas
Tank level measurement in petrochemicals, food, and drug storage
High-pressure sealing tests in metallurgical, chemical, and gas applications
Pressure monitoring of valves before and after pumps
Filter differential pressure signal monitoring
Differential pressure measurement of high temperature steam pipelines
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 measurement range from 6kPa to 40MPa, making it suitable for both low-pressure and high-pressure industrial applications including liquid, gas, and steam measurement.
Q What communication protocols does the GP/AP-3051 transmitter support?
The transmitter supports multiple communication protocols including 4-20mA DC+HART, RS485, Zigbee, and Foundation Fieldbus. It also offers wireless connectivity via NB-IoT, 4G, and LoRaWAN for cloud-based industrial IoT deployments.
Q What membrane materials are available for corrosive environments?
The isolation diaphragm can be manufactured from 316L stainless steel, Hastelloy, tantalum, Monel alloy, or 316L gold-plated materials. These options ensure 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 the GP/AP-3051?
The transmitter offers three accuracy options: ±0.05%, ±0.075%, and ±0.1%. Its long-term stability is rated at ±0.1% FS over 3 years, ensuring consistent and reliable performance over extended periods of operation.
Q Is the GP/AP-3051 suitable for hazardous or explosive environments?
Yes. The transmitter carries explosion-proof certifications of Exd II CT6 and Exia II CT6, making it appropriate for use in hazardous locations where flammable gases or vapors may be present. It also features an IP67 ingress protection rating for dust and water resistance.
Q What industries and applications is the GP/AP-3051 commonly used in?
The GP/AP-3051 is widely used across petrochemical, food and drug storage, metallurgy, chemical processing, hydropower, and gas industries. Typical applications include tank level measurement, high-pressure sealing tests, pump valve pressure monitoring, filter differential pressure monitoring, high-temperature steam pipeline measurement, and boiler drum liquid level measurement.

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