Nexisense Flange Type Liquid Level Transmitter Features Explained: High-Precision and Durable Design Empowering Industrial Level Monitoring

In industrial production, continuous liquid level measurement of storage tanks and vessels is a key factor in ensuring safety and efficiency. Flange type liquid level transmitters are widely used in various complex working conditions due to their unique design, performing excellently from metallurgy and chemical engineering to environmental protection and pharmaceuticals. The Nexisense flange type liquid level transmitter series has become a reliable choice for many industries thanks to multiple practical features. This article will explore its definition, principle, structure, advantages, and applications in depth to help you better understand the value of this instrument.

Definition and Function of Flange Type Liquid Level Transmitters

A flange type liquid level transmitter is a pressure-based liquid level measuring instrument installed on the side or bottom of a vessel via flange connection. It uses the hydrostatic pressure principle to convert liquid level height into a standard electrical signal output, enabling continuous monitoring. It is suitable for open or closed containers, especially for liquid level control of medium- to high-pressure, corrosive, or high-temperature media.

Nexisense products provide stable output in this field and support remote transmission, facilitating integration into automation systems and ensuring safe and smooth production processes.

Working Principle Analysis

The flange type liquid level transmitter is based on the hydrostatic pressure measurement principle: the pressure generated by a liquid column is proportional to its height (P = ρgh, where ρ is density, g is gravitational acceleration, and h is liquid level). The sensor diaphragm senses the pressure, and the internal sensing element (such as diffused silicon) deforms to generate a signal. After amplification, linearization, and temperature compensation by the circuit, it outputs a 4–20 mA or digital signal.

This principle is simple and reliable. The zero point and span can be flexibly shifted within the effective range, adapting to different vessels and changes in medium density.

What is a Liquid Level Sensor? - GasLab.com

Internal Structure Analysis

The Nexisense flange type liquid level transmitter features a robust and modular structure. The core components include a 316L stainless steel isolation diaphragm, vent valve, flange connection, and electronic circuit board. The diaphragm directly contacts the medium to prevent corrosion; the flange ensures sealed installation; and the circuit board adopts a plug-in design with solid-state components to enhance vibration resistance.

The overall housing has a high protection rating, suitable for all-weather use. This structure is not only durable but also convenient for maintenance and calibration.

Outstanding Features

The wide application of flange type liquid level transmitters originates from multiple practical features.

Strong adjustment flexibility: Zero and span can be shifted arbitrarily within the detection range to adapt to on-site changes without re-calibration.
High accuracy level: Accuracy up to 0.1% FS, ensuring precise measurement and suitable for precision process control.
Excellent vibration resistance: Solid-state components and plug-in circuit board design; under 200 Hz vibration, the effect is only 0.2% URL/g, tolerable on any axis.
Outstanding corrosion resistance: Isolation diaphragm, valves, and flanges are all made of 316L stainless steel, resistant to acids, alkalis, and harsh media.
Reliable explosion-proof design: Intrinsically safe structure, suitable for all-weather use, especially in explosive environments.

These features collectively enhance the adaptability and service life of the instrument while reducing failure risks.

Diverse Application Scenarios

Nexisense flange type liquid level transmitters are suitable for molten metal level monitoring in metallurgy, chemical reactor control, environmental wastewater pool management, power plant boiler water level, paper pulp tanks, pharmaceutical fermentation tanks, dyeing vats in textile printing and dyeing, food storage tanks, and municipal water treatment systems.

In highly corrosive or explosion-proof-required environments, its stainless steel material and safety design are particularly prominent, supporting continuous and reliable operation and promoting industrial automation upgrades.

Measurement Method Details

Measurement adopts flange side-mount or bottom-mount methods, with the diaphragm directly sensing hydrostatic pressure. During installation, ensure flange sealing and that the medium is free of air bubble interference. The output signal is connected to display instruments or PLCs to achieve remote monitoring and alarms.

For closed vessels, it can be combined with capillary remote transmission to expand the application range.

Maintenance and Care Guidelines

Maintenance is simple: regularly check flange sealing and diaphragm cleanliness to prevent scaling from affecting accuracy. Add vibration damping pads in vibrating environments. Calibrate zero and span annually and verify output.

Key maintenance focuses on moisture and corrosion prevention, with dry and ventilated storage. These steps ensure long-term stability and extend service life.

Frequently Asked Questions

How is zero shift performed?
It can be adjusted via panel buttons or software within the effective range without disassembly.

Is it suitable for corrosive media?
316L material resists most acids and alkalis; special media can use Hastelloy.

Does strong vibration affect accuracy?
The vibration-resistant design is robust, with minimal impact under 200 Hz.

Is it safe for explosion-proof applications?
It has intrinsic safety certification and is suitable for all-weather use.

Are there installation direction limitations?
Side-mounted flange installation is flexible; bottom-mounted installation should consider sediment.

Conclusion

With features such as flexible adjustment, high precision, vibration resistance, corrosion resistance, and explosion-proof capability, flange type liquid level transmitters have become an ideal choice for industrial liquid level measurement. Nexisense provides efficient solutions through high-quality materials and reliable design. From metallurgy to municipal engineering, these features support process optimization and safety assurance. Under the trend of industrial intelligence, mastering its advantages and applying it scientifically will significantly improve production efficiency and resource utilization. Choose the right instrument to move your system toward greater reliability.