Magnetostrictive Level Gauge

AIPUXin: Your Professional Magnetostrictive Level Gauge Supplier!

Shandong AIPUXin Automation Instrument Co., Ltd. specializes in the development, design, and production of intelligent automation sensors. As market demands change, our company has developed RF capacitive liquid level switches, magnetostrictive liquid level transmitters, RF capacitive liquid level transmitters, microwave material level switches, radar liquid level transmitters, tuning fork density meter series products, etc. We have been working hard to create first-class products and become a first-class enterprise.

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Professional Production Equipment

Our modern factory is equipped with advanced CNC lathes, Mounters, oscilloscopes, sandblasting machines, argon arc welding machines, Ammeter, computer wire stripping machines, high-temperature test boxes, etc.

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Our company continues to innovate products, has more than 200 products, and has obtained more than 80 patents. CE certification, ISO9001, SIL certificates, etc., which enhance the credibility of our products and improve their competitiveness.

Strict Quality Inspection

Our R&D, design, and production strictly comply with international standards, and each process has strict operating procedures. More than 30 sets of testing and processing equipment help ensure product quality.

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The professional service team can quickly solve the problems users encounter and also provide customers with lifelong technical services. Video tracking services and emails make it easy for us to communicate with our customers on the fly.

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Introduction to Magnetostrictive Level Gauge

A magnetic level gauge is a type of level sensor, i.e., a device used to measure the level of fluids. A magnetic level gauge includes a “floatable” device that can float both in high and low density fluids. Magnetic level gauges may also be designed to accommodate severe environmental conditions up to 210 bars at 370 °C.

Advantages of Magnetostrictive Level Gauge

High Accuracy and Precision
One of the major advantages of magnetic level gauges is their exceptional accuracy and precision. Compared to other level measurement methods, such as sight glasses or ultrasonic sensors, magnetic gauges offer superior reliability in providing accurate level readings. The magnetic coupling eliminates any potential mechanical issues, ensuring that the level indicator moves seamlessly with the float. This high level of accuracy is vital for industries that require precise control over the liquid levels, such as chemical plants or refineries.
Durability and Resistance
In harsh industrial environments, durability is a key consideration for any equipment. Magnetic level gauges are designed to withstand extreme conditions, including high temperatures, corrosive substances, and high-pressure systems. The absence of direct contact with the process fluid helps protect the gauge from corrosion, making it a suitable choice for industries dealing with aggressive media. Additionally, the robust construction of magnetic gauges, often using materials like stainless steel, ensures their long-term reliability and resistance to physical damage.
Enhanced Safety Features
Safety is paramount in industrial settings, particularly when it comes to measuring and controlling hazardous substances. Magnetic level gauges offer several safety features that mitigate potential risks. Firstly, the sealed design eliminates leakage points, preventing the process fluid from escaping into the surroundings. Moreover, the transparent tube housing the indicator provides a secondary level of containment, enabling operators to quickly detect any leakage or fluid overflow. This added visual inspection capability enhances safety protocols and helps prevent accidents or environmental hazards.
Easy Installation and Maintenance
Installing and maintaining magnetic level gauges is relatively straightforward, making them a cost-effective choice for many industrial applications. The gauges can be easily mounted on existing vessels or tanks, requiring minimal modifications to the infrastructure. Additionally, with no moving parts inside the tank, the risk of mechanical failure is significantly reduced, leading to lower maintenance costs. Routine maintenance usually involves periodic cleaning of the glass or transparent tube to ensure clear visibility of the level indicator.
Compatibility with Various Process Conditions
Another advantage of magnetic level gauges is their compatibility with a wide range of process conditions. They can handle high or low operating temperatures, pressures, and aggressive media, allowing them to be used in diverse industrial settings. Moreover, magnetic gauges can be tailored to specific requirements with various materials of construction, coatings, and connections. This versatility ensures that magnetic level gauges can adapt to different industries and processes, providing reliable level measurement solutions in various applications.

Application of Magnetostrictive Level Gauge

Oil and Gas Industry

Magnetostrictive level gauges are extensively used in the oil and gas industry for measuring the level of crude oil, refined petroleum products, liquefied natural gas (LNG), and other hydrocarbons in storage tanks, pipelines, and process vessels. They provide precise and continuous level monitoring in both upstream and downstream operations.

Chemical Processing

In chemical processing plants, magnetostrictive level gauges are employed to measure the level of various corrosive liquids, solvents, acids, and other chemicals. They are suitable for a wide range of applications, such as storage tanks, reaction vessels, blending tanks, and distillation columns.

Water and Wastewater Treatment

Magnetostrictive level gauges find application in water and wastewater treatment facilities for monitoring the level of liquids, including raw water, treated water, wastewater, sludge, and chemicals. They are used in storage tanks, clarifiers, settling basins, and other treatment process vessels.

Food and Beverage Industry

In the food and beverage industry, magnetostrictive level gauges are utilized for measuring the level of liquids, such as milk, juices, beer, wine, and other ingredients. They ensure accurate inventory management, process control, and compliance with sanitation standards.

Pharmaceuticals

Magnetostrictive level gauges are employed in pharmaceutical manufacturing facilities to measure the level of liquids and chemicals used in drug formulation, storage, and processing. They assist in maintaining batch consistency, inventory management, and regulatory compliance.

Cable Type Magnetostrictive Liquid Level Gauge

Pulp and Paper Industry

In the pulp and paper industry, magnetostrictive level gauges are used to measure the level of liquids, such as chemicals, pulp stock, and wastewater, in various process vessels, storage tanks, and paper machines. They aid in process optimization, inventory control, and environmental compliance.

Working Principle of Magnetostrictive Level Gauge

The primary components of a Magnetostrictive Level Sensor include a magnetic float, a waveguide, a position magnet, and an electronics assembly. This sensor operates based on the generation of a torsional stress wave in a specially designed magnetostrictive waveguide.
Waveguide
It is a thin wire usually made of a ferromagnetic alloy. It runs the entire length of the probe.
Magnetic Float
It moves up and down with the level of the liquid. The float contains a ring magnet which creates a magnetic field around it.
Position Magnet
It is usually fixed to the object whose position needs to be measured. It creates a magnetic field when it comes into contact with the waveguide.
Electronics Assembly
It sends an electrical pulse down the waveguide, which in turn interacts with the magnetic field from the float to generate a torsional stress wave.
The time taken by the torsional wave to return to the electronics assembly is directly proportional to the position of the float along the waveguide. This time delay is then translated into a level measurement.

Components of Magnetostrictive Level Gauge

Transmitter

The transmitter is the primary component of the magnetostrictive level gauge. It contains the sensing element and electronics necessary for level measurement. The transmitter generates and sends a measurement signal down the sensing element.

Sensing Element

The sensing element is a rigid, non-magnetic tube made of a magnetostrictive material, typically a ferromagnetic alloy. It serves as the waveguide for the measurement signal generated by the transmitter.

Float

The float is a buoyant device that moves up and down along the sensing element based on the liquid level. It contains a magnet that interacts with the measurement signal sent by the transmitter.

Waveguide Wire

Inside the sensing element, there is a waveguide wire that runs parallel to its length. The waveguide wire is made of a magnetostrictive material, such as nickel-iron alloy. It is the key element that interacts with the measurement signal and generates a return signal.

Electronics

The electronics section of the magnetostrictive level gauge includes circuitry for signal generation, transmission, reception, and processing. It comprises a pulse generator, timing circuit, receiver, and signal processing unit. The electronics interpret the return signal from the sensing element to determine the liquid level.

Enclosure

The magnetostrictive level gauge is housed in an enclosure that protects the sensitive components from environmental factors such as moisture, dust, and temperature extremes. The enclosure is typically made of a durable and corrosion-resistant material.

Factors to Consider Before Choosing a Magnetostrictive Level Gauge

Measuring Range

Perhaps the most fundamental criteria, measuring range means the maximum and minimum range that the level gauge can display without errors. Also known as column height, a consumer should take this into account along with any possible fluctuations in the fluid level.

System Specifications

When it comes to system specifications, there are a variety of parameters that need to be taken into account.
● Maximum operating pressure: It is the maximum pressure that the device can withstand, specified by the manufacturer.
● Material temperature range: It is the maximum temperature the device can function in, specified by the manufacturer.
● Maximum liquid specific gravity: Liquid specific gravity can be defined as the ratio of the density of the material being stored to the density of water at a specified temperature. The maximum liquid-specific gravity will also be defined by the manufacturer for a particular device.
● Maximum material density: It can be defined as the maximum material density that the device can sustain, specified by the manufacturer.

Medium

Finally, what kind of medium the level gauge will be measuring is also important for appropriate device selection. There are basically 3 types of medium that can be stored and measured.
● Liquid Medium: Includes fluids such as water, gasoline, hydraulic fluid or highly viscous fluids.
● Gaseous Medium: Includes steam, LPG, natural gas and other similar media.
● Solid Medium: These generally comprise dry materials like powders and bulk solids like chemicals, minerals, sugar, starch, and more.

Our Certificate

3A certification, CE certification, ISO9001, SIL certificate, explosion-proof certificate, etc. prove our company's professional strength and the high quality of our products.

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Our Factory

Our company was established on July 9, 2012, located at No. 106-108, Building 4, 11th Street, Block B, Haode Trade City (Anju), with an existing plant area of 3000 square meters. Professional production equipment and employees continuously promote product innovation and optimization.

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Ultimate FAQ Guide to Magnetostrictive Level Gauge

Q: What is a magnetostrictive level measuring device?

A: Level transmitters with a magnetostrictive, high-resolution measuring principle are used for continuous level measurement of liquids and are based on determining the position of a magnetic float following the magnetostrictive principle. The level transmitters are mounted on the outside of a bypass level indicator.

Q: How accurate is a magnetostrictive level transmitter?

A: Magnetostrictive level transmitters are capable of measuring with an impressive accuracy of 0.05 inches (1.27 mm).

Q: What is the magnetic level gauge used for?

A: The magnetic level gauge is ideally suited for measuring a liquid interface. Floats are available to meet a variety of specific gravities to suit the liquids being monitored - many manufacturers offer floats suitable for specific gravity ranges of 0.33-2.2.

Q: How does a magnetostrictive level transmitter work?

A: The level transmitter is a magnet, which is integrated into the float. Its magnetic field magnetizes the wire axially. Since the two magnetic fields are superimposed, around the float magnet a torsion wave is generated which runs in both directions along the wire.

Q: What is magnetostrictive level measurement?

A: Magnetostrictive technology is one of the best technologies for liquid level measurement which is the most accurate and highest resolution level sensor on the market. This continuous liquid level solution can determine level within only a few millimeters but remains one of the least known or understood.

Q: What are magnetic level sensors?

A: Magnetic float level sensors involve the use of a permanent magnet sealed inside a float whose rise and fall causes the opening or closing of a mechanical switch, either through direct contact or in proximity of a reed switch. With mechanically actuated floats, the float is directly connected to a micro switch. For both magnetic and mechanical float level sensors, chemical compatibility, temperature, specific gravity (density), buoyancy, and viscosity affect the selection of the stem and the float. For example, larger floats may be used with liquids with specific gravities as low as 0.5 while still maintaining buoyancy. The choice of float material is also influenced by temperature-induced changes in specific gravity and viscosity – changes that directly affect buoyancy.

Q: What is the magnetostrictive principle?

A: Magnetostriction is a property of magnetic materials that causes them to change their shape or dimensions during the process of magnetization. The variation of materials' magnetization due to the applied magnetic field changes the magnetostrictive strain until reaching its saturation value, λ.

Q: What are the components of magnetic level gauges?

A: Magnetic Level Gauge consists of three major components: Float Chamber, Float, and Indicator System.

Q: What material is magnetic level gauge float made of?

A: All the magnetic level gauges are fitted with a float. This float is standard in stainless steel, but the float is also available in Titanium or Hastelloy. The float must have enough buoyancy and the magnet must be fitted at the right position inside the float.

Q: How does a float gauge measure level?

A: The design of a float-based measuring system is simple: A float with an inner tube and a magnet moves along a guide tube depending on the liquid level. The float acts as a signal transmitter, whose impulse is converted to an output signal.

Q: What are the benefits of magnetostrictive sensors in water & waste water industry?

A: Magnetostrictive liquid-level sensors have numerous applications within the water and wastewater industry. The basic application of liquid-level sensors is to determine the liquid level in a tank and control when pumps start and stop. The high level of accuracy level sensors allows for the additional application of leak detection, flow rate determination, and adding in specific volumes of chemicals during treatment. Other sensing technologies must be combined in a multitude and/or with other products to achieve these applications.
One of the arguments against the magnetostrictive sensors is the price disadvantage when compared to low-cost sensors. But these comparisons do not consider the entire cost of the sensor, including maintenance, setup, calibration, tank downtime and the short life span of other sensors. End-users also fail to consider the number of sensors that can be replaced with just one magnetostrictive sensor due to its high accuracy and temperature output. When considering the entire life cycle of the product and the advantage of increased accuracy, magnetostrictive sensors are cost competitive.
Magnetostrictive technology and the use of advanced microprocessors in the electronics along with powerful algorithms allow for premium accuracy along with the ability to measure multiple floats and temperature. Some magnetostrictive transmitters are accurate up to 0.01% of scale with a repeatability of 0.005% of full scale compared to 0.15% (or greater) of scale with other level measurement technologies.
Magnetostrictive sensors do not fail due to changing environmental conditions such as foam, mist, gas layering, dust, or temperature change that plague other contact or non-contact sensors. In tanks or reservoirs with multiple liquids of varying densities, multiple floats can be set to each material’s density, allowing for multiple level readings with a single sensor which is not achieved using the traditional noncontact technologies.

Q: What are the application areas of magnetostrictive level sensors

A: Magnetostrictive Level Sensors have a broad range of applications across various industries. They are commonly used in industries where precision and reliability are of utmost importance.
Petrochemical Industry
These sensors are extensively used in the petrochemical industry for level measurement of various fuels and oils in storage tanks and reservoirs.
Food and Beverage Industry
They help in measuring the level of various liquids such as juices, milk, and other beverages in production lines and storage tanks.
Pharmaceutical Industry
For maintaining stringent hygiene standards, these sensors are used to measure levels of various pharmaceutical liquids in sterile conditions.
Water Treatment Plants
They are used for level measurement in water storage tanks and reservoirs.

Q: What are the challenges and limitations of Magnetostrictive Level Gauge?

A: Despite the numerous advantages, Magnetostrictive Level Sensors are not without their challenges. They are typically more expensive than other level sensing technologies, which may deter some industries from adopting them. Furthermore, they may be influenced by external magnetic fields, which can potentially impact their accuracy. Lastly, while these sensors are capable of withstanding high temperatures and pressures, they have a limit to the level of harsh conditions they can endure.

Q: What is the application of magnetic level gauge?

A: Magnetic level gauges are designed to withstand a wide range of temperatures and pressures. They can operate reliably in extreme conditions, making them ideal for applications in industries such as oil and gas, petrochemicals, and power generation.

Q: What are the advantages of a magnetic level gauge?

A: Magnetic level gauges provide numerous advantages over traditional sight glass gauges, many of which can greatly enhance safety, accuracy, and efficiency in various industrial settings.
Safety: Magnetic level gauges protect operators from high-pressure and/or high temperature fluids.
Accuracy and Reliability: Using magnetic fields ensures consistent and accurate readings, as they are not subject to errors caused by refractive index changes, lighting conditions, or fluid color and clarity.
Versatility: These gauges are suitable for high-pressure and high-temperature applications and for measuring levels of corrosive and hazardous fluids.
Longevity: With fewer moving parts and no glass components, magnetic level gauges typically offer greater longevity, reducing maintenance costs and the need for replacements.

Q: What is the magnetic level gauge routine maintenance?

A: Normally, magnetic level gauges operate free from maintenance and wear when applied properly. Depending on the application, occasionally mud or other floating substances can gather in the lower portion of the instrument. Should this be the case, follow the below steps to remove the gauge from service:
● Isolate the chamber from service by closing the process valves starting with the lower valve and then the top valve.
● Open the vent connection slowly to equalize pressure with the atmosphere.
● Drain off any remaining liquid in a manner compatible with plant requirements. Remove the flange on the gauge bottom.
● Clean out chamber with a brush and wash with water. Make sure there are no remaining solid particles. Look for items or debris that will inhibit float movement. Further inspect the gauge chamber to ensure that it is free from unexpected corrosion or damage.
● Replace the float with the arrows in the "Up" position.
● Use a new gasket, replace the bottom flange and tighten all fasteners to the proper torque.

Q: Do Magnetostrictive Level Gauges require regular calibration?

A: Installation and commissioning of the level sensor is simple: Only one calibration is carried out, and a recalibration is not required.

Q: Can they be used for continuous level monitoring?

A: Absolutely, Magnetostrictive Level Gauges are suitable for continuous level monitoring applications.

Shandong Aipuxin Automation Instrument Co., Ltd. is one of the most professional magnetostrictive level gauge manufacturers and suppliers in China, specialized in providing high quality customized service. We warmly welcome you to wholesale cheap magnetostrictive level gauge in stock here from our factory. For price consultation, contact us.

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