Magnetic Float Level Gauge
The magnetic float level gauge is an essential instrument for industrial liquid level measurement. It operates by using a magnetic float that moves along the guide tube, transferring liquid level changes to an indicator or signal output device.
Ideal for chemical, oil, water, and corrosive liquid applications, it provides reliable and continuous monitoring of tank levels. The device is designed with robust materials, ensuring excellent durability even under high pressure or harsh environments.
With both direct visual readings and remote electrical outputs, this level gauge supports integration into modern automation systems, helping industries achieve efficient process control.
Level Measuring Instruments Description
Magnetic Float Level Gauge-Features
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Simple and Reliable Design – Compact structure ensures stable operation, easy installation, and minimal maintenance requirements.
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Separated Measuring and Connection Chambers – The working cavity and transmitter chamber are independent, enhancing safety and reliability.
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Wide Application for Harsh Media – Suitable for thick, dirty, flammable, explosive, and corrosive liquids, ideal for demanding industrial environments.
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Dual Display Options – Equipped with a field pointer and LCD screen for clear, real-time liquid level visualization.
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Intelligent Signal Processing – Automatic zero and span calibration without manual switching, simplifying commissioning and adjustments.
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High Measurement Accuracy – Precise liquid level detection; minimum adjustment angle can achieve 2°.
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Advanced Output Capabilities – 4–20 mA current output with HART protocol support for seamless integration into industrial automation systems.
Applications of Magnetic Float Level Gauge
The Magnetic Float Level Gauge is widely used for continuous liquid level and interface measurement in various industrial processes. Based on buoyancy principles and a robust mechanical structure, it delivers stable and reliable performance even under harsh operating conditions.
Typical applications include:
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Chemical Industry
Used for level and interface measurement of corrosive, toxic, and high-viscosity liquids in reactors, storage tanks, and process vessels. Suitable for aggressive media where reliability and safety are critical. -
Oil & Gas and Petrochemical Industry
Ideal for monitoring crude oil, refined fuels, and chemical intermediates in storage tanks and separators. The all-metal construction and explosion-proof design ensure safe operation in hazardous areas. -
Power Generation
Applied in boiler systems, condensate tanks, and auxiliary vessels for accurate liquid level indication under high-temperature and high-pressure conditions. -
Water and Wastewater Treatment
Used for level measurement in clean water tanks, sewage treatment basins, and sludge systems. Performs reliably in dirty and particle-laden liquids with minimal maintenance. -
Pharmaceutical and Food Processing
Suitable for hygienic applications requiring stable and repeatable level measurement. Optional stainless steel materials support clean and controlled process environments. -
Shipbuilding and Marine Engineering
Applied in ballast tanks, fuel tanks, and service tanks where vibration resistance and long-term stability are required.
With support for local indication, 4–20 mA signal output, alarm switching, and HART communication, the float level gauge can be easily integrated into PLC, DCS, and industrial automation systems, making it a reliable solution for modern process control.
Level Measuring Instruments Parameter
| Parameter | Specification |
|---|---|
| Measuring Range | 300–6000 mm (customizable per user requirements) |
| Measurement Accuracy | ±1.5%, ±2.0% |
| Float Material | SS304, SS316L, HC, Ti, (customizable per user requirements) |
| Medium Density | ≥ 0.45 g/cm³ |
| Interface Measurement | Density difference between two media ≥ 0.1 g/cm³ |
| Medium Temperature | ≤ 80°C, ≤ 150°C, ≤ 250°C, ≤ 400°C |
| Medium Pressure | Standard: ≤ 4.0 MPa; High-pressure: ≤ 42 MPa |
| Pressure Rating | Standard: DN40–DN50 / PN4.0 MPa; DN80–DN100 / PN1.6 MPa High-pressure: DN40–DN50 / PN10.0 MPa Special: per customer request |
| Flange Standard | HG20592, DIN2501, ANSI, SH, GB (or per user request) |
| Process Connection | Flange DN50, G 1.5″ threaded, or per customer requirements |
| Output Signal | 4–20 mA DC (two-wire system) |
| Load Resistance | 500 Ω (powered by 24V DC) |
| Communication Protocol | HART, Modbus (RS485) |
| Alarm Output | Upper and lower limit switch isolated output |
| Contact Capacity | Max. 400 VAC 0.05 A, 24 VDC 0.2 A |
| Power Supply | 15–35 VDC, 220 VAC; Lithium battery 3.6 V 7.5 Ah, 220 VAC |
| Ambient Temperature | -20°C to +60°C |
| Housing Material | SS304, SS316L, or per customer request |
| Indicator Housing | Aluminum alloy, SS304, SS316L |
| Protection Level | IP65, IP67 (IP68 optional upon request) |
| Explosion-proof Rating | Intrinsically safe: Ex ia IIC T6 Ga, Isolated: Ex d IIC T6 Gb |
| Pressure Test | Tested 1.2–1.5× rated pressure per standards before delivery |
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Related Product Recommendations
What types of liquids can the Float Level Gauge measure?
The Float Level Gauge can measure water, oils, acids, alkalis, corrosive chemicals, and viscous fluids. It is suitable for a wide range of industrial applications, including chemical, petrochemical, and food processing environments.
How accurate is the Magnetic Float Level Meter?
Using precision float and guide rod design, this meter provides ±10 mm measurement accuracy. It ensures reliable and long-term stable performance for industrial liquid level measurement applications.
Can the Float Level Gauge connect to automated control systems?
Yes, models with 4–20 mA signal output can integrate with PLC and DCS systems for real-time monitoring, supporting automated control and data logging in industrial processes.
How often should the Float Level Gauge be inspected or maintained?
Routine maintenance includes checking the float and seals every 6–12 months. For aggressive or viscous media, more frequent inspections may be required to maintain measurement accuracy.
What installation considerations are necessary for optimal performance?
Install the gauge vertically and ensure the float moves freely. Avoid contact with tank walls or turbulence in the liquid to maintain accurate and stable level readings.
Is the Float Level Gauge suitable for corrosive or viscous liquids?
Yes, with appropriate material selection such as stainless steel or corrosion-resistant alloys, the gauge can reliably measure aggressive, corrosive, or viscous fluids in industrial tanks.
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