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Products Description
Product Definition
The Nexisense SMP4631 series split-type intelligent level transmitter is a high-performance liquid level measurement device designed specifically for measuring liquid depth. It utilizes advanced silicon pressure sensors as the core measurement component, accurately measuring liquid static pressure and converting it into RS485 or HART signal output for easy integration with various control systems.
Working Principle
The working principle of the SMP4631 level transmitter is based on static pressure measurement. The depth of the liquid is proportional to its static pressure. The sensor measures the pressure generated by the liquid surface and accurately calculates the liquid depth using intelligent digital compensation and correction technology. This device can operate stably under various environmental conditions, ensuring data accuracy and reliability.
Structural Analysis
The structure of the SMP4631 level transmitter is designed with protection and durability in mind, mainly consisting of the following components:
Housing: Made of explosion-proof aluminum, providing excellent protection performance suitable for harsh environments.
Diaphragm: Made of stainless steel 316L, ensuring compatibility and corrosion resistance for various liquids.
Sealing Ring: Made of fluororubber, providing good sealing performance to prevent liquid leakage.
Cable: Equipped with a dedicated polyethylene cable, ensuring stability and safety in signal transmission.
Measurement Method
The SMP4631 level transmitter measures liquid levels through the following methods:
Static Pressure Measurement: Utilizing the silicon pressure sensor to measure the pressure at the liquid surface.
Signal Processing: The measured pressure signal is processed through intelligent digital compensation and correction, converting it into standard RS485 or HART signal output.
Data Transmission: The measurement data is transmitted to the control system via RS485 or HART protocol for real-time monitoring.
Technical Parameters
| Parameter Category | Parameter Description |
|---|---|
| Measurement Range | 0 mH2O to 1 mH2O up to 200 mH2O |
| Overload | 2 times full-scale pressure, 5 times overpressure for ranges below 5 mH2O |
| Power Supply | 10-28V DC (RS485 type), 12-30V DC (HART type) |
| Output Signal | RS485 output, 4mA-20mA DC & HART protocol output |
| Accuracy | ±0.1%FS (minimum), ±0.5%FS (maximum) |
| Operating Temperature | -20°C to 85°C |
| Storage Temperature | -40°C to 125°C |
| Protection Level | IP68 (sensor part), IP65 (housing part) |
Application Areas
The Nexisense SMP4631 level transmitter is widely used in the following fields:
Hydrological Monitoring: For monitoring water levels in rivers and lakes, ensuring the rational use of water resources.
Industrial Water: Monitoring water levels in industrial production to ensure safety and efficiency.
Tank Monitoring: For monitoring liquid levels in storage tanks to prevent overflow and leakage.
Water Supply and Drainage Systems: Real-time monitoring of liquid level changes in water supply and drainage systems to optimize water resource management.
Conclusion
The Nexisense SMP4631 series split-type RS485/HART intelligent level transmitter, with its high precision, high stability, and multiple range options, is an ideal choice in the field of level measurement. Its intelligent signal output and robust structural design ensure excellent performance in various applications. Whether in hydrological monitoring, industrial water management, or tank monitoring, the SMP4631 provides reliable liquid level measurement solutions, helping users achieve efficient liquid management and monitoring.
