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Products Description
Product Definition
The Nexisense explosion-proof digital pressure transmitter is a high-precision instrument designed for measuring fluid pressure while meeting the demands of harsh industrial environments. This product complies with international explosion-proof standards and is widely used in petroleum, natural gas, chemical, and other industries, providing reliable assurance for equipment safety and operational efficiency.
Working Principle
The Nexisense pressure transmitter converts the pressure signal received into an electrical signal through a pressure sensor. This signal is amplified and processed, ultimately transmitted in a standardized output format (such as 4-20mA) to the display or control device. The basic working principle can be summarized in the following steps:
Pressure Sensing: The pressure transmitter's sensor comes into contact with the measured medium, sensing pressure changes.
Signal Conversion: The sensor converts the mechanical pressure signal into a small voltage signal.
Signal Processing: The built-in circuit amplifies and linearizes the voltage signal, ensuring output accuracy.
Output Signal: The final electrical signal is output to monitoring systems or other control devices, reflecting the pressure status in real-time.
Technical Specifications
Pressure parameters | ||||
range | -0.1MPa⋯0MPa~0.01 MPa⋯100MPa | |||
Overload | 2 times full scale or 110MPa (whichever is lower) | |||
Type of pressure | Gauge pressure, absolute pressure, sealed gauge pressure | |||
Electrical parameters | ||||
Power supply | 12~32V DC | |||
Output signal | 4mA～20mA DC (two-wire system) | |||
load resistor | ≤（U-12）/0.02Ω | |||
Structural parameters | ||||
case | Explosion-proof cast aluminum housing | |||
sensor | 316L stainless steel | |||
sealing ring | Fluororubber | |||
Protection level | IP65 | |||
Environmental conditions | ||||
Media suitability | Various fluids that do not corrode 316L stainless steel and fluororubber | |||
Compensation temperature | -10℃～80℃ | |||
medium temperature | -30℃～80℃ (LCD display type: -20℃～80℃) | |||
Storage temperature | -40℃～125℃ (LCD display type: -20℃～80℃) | |||
Performance indicators | ||||
accuracy | ≤±0.1%FS (Minimum) | ≤±0.25%FS (typical) | ≤±0.5%FS (maximum) | |
Zero-point temperature coefficient | ±0.03%FS/℃ (≤100kPa) | ±0.02%FS/℃ (＞100kPa) | ||
Full-scale temperature coefficient | ±0.03%FS/℃ (≤100kPa) | ±0.02%FS/℃ (＞100kPa) | ||
Long-term stability | ±0.2%FS/year (maximum) | |||
Explosion-proof marking | Intrinsically safe: Exia IIC T6 Ga | |||
Explosion-proof type: Exd IIB T6 Gb | ||||
Structural Analysis
The Nexisense explosion-proof digital pressure transmitter consists of the following main components:
| Component | Description |
|---|---|
| Sensor | Made of 316L stainless steel, offering corrosion resistance and high-temperature durability. |
| Body | Explosion-proof aluminum casing to ensure safe operation in hazardous environments. |
| Electrical Interface | Standardized interfaces facilitate connections, supporting multiple power supply and signal output options. |
| Display | Optional LED or LCD screens for real-time data display. |
| Seal | Made with fluororubber to enhance corrosion resistance and leakage prevention. |
This design ensures the instrument's stability and longevity in complex environments.
Measurement Methods
The Nexisense explosion-proof digital pressure transmitter can measure pressure through the following methods:
Gauge Pressure Measurement: Suitable for measuring pressure relative to atmospheric pressure, ideal for open systems.
Absolute Pressure Measurement: Suitable for measuring pressure relative to a vacuum, commonly used in sealed containers or vacuum systems.
Sealed Gauge Pressure Measurement: Combines the features of gauge and absolute pressure, suitable for various special applications.
Product Features
High Precision Measurement: Provides accuracy of ±0.1% FS, ensuring the reliability of measurement results.
High Temperature and Corrosion Resistance: The 316L stainless steel sensor and fluororubber seal enable operation in extreme environments ranging from -30°C to 80°C.
Outstanding Safety Performance: Designed for intrinsic safety and explosion-proof requirements, ensuring safe operation in flammable and explosive environments.
Flexible Connection Options: Supports 4-20mA output to facilitate integration with mainstream industrial automation control systems.
Application Fields
The Nexisense explosion-proof digital pressure transmitter is widely used across multiple industries, including but not limited to:
Petroleum and Natural Gas: Real-time monitoring of pressure status in oil and gas extraction and transportation processes, ensuring safety and efficiency.
Chemical Industry: Used in various chemical reaction tanks and storage tank applications, monitoring pressure changes to prevent accidents.
Food Processing: Ensuring pressure stability during food production processes, improving product quality and production efficiency.
Water Treatment: Monitoring the pressure status of water treatment facilities and equipment to ensure effective resource management.
Pharmaceutical Industry: Real-time monitoring in pharmaceutical production to ensure drug production safety.
Conclusion
The Nexisense explosion-proof digital pressure transmitter not only provides exceptional measurement accuracy and safety design but also operates steadily in various harsh environments, making it an indispensable measuring tool in industrial settings. Whether in high-temperature, corrosive, or hazardous situations, the Nexisense product will offer reliable performance and an exceptional user experience, meeting modern industry's demand for precise measurement and safety protection. Choose Nexisense to make your industrial automation more efficient and safer!
