Tesla Meter MG-901 | Measure Gauss

The Tesla Meter MG-901 is a digital magnetic field measuring instrument designed for measuring and evaluating magnetic field strength, including measurements expressed in Gauss. Also known as a Gauss meter, Gaussmeter, magnetic field meter or magnetic flux density meter, this instrument provides a practical way to measure magnetic fields for magnet testing, quality control, product comparison, research and industrial applications.

Ideal for use with permanent magnets, magnetic assemblies, separator bars, grate magnets and other magnetic equipment, the MG-901 allows users to obtain quantitative magnetic field measurements rather than relying on attraction or pull force alone.

The Tesla Meter MG-901 is suitable for magnet suppliers, manufacturers, engineers, technicians, quality-control teams, educational facilities and other users who need to measure and compare magnetic field strength.

Key Features

• Tesla Meter MG-901
• Designed for magnetic field measurement
• Measures magnetic field strength, including readings expressed in Gauss
• Also known as a Gauss meter or magnetic field meter
• Suitable for testing permanent magnets and magnetic assemblies
• Useful for magnetic separator inspection and comparison
• Suitable for quality control and technical testing
• Helps provide quantitative magnetic field measurements
• Suitable for industrial, engineering, laboratory and educational applications
• Useful for comparing magnetic field strength at defined measurement locations

Common Applications

• Permanent magnet testing
• Neodymium magnet testing
• Ferrite magnet testing
• Samarium Cobalt magnet testing
• Alnico magnet testing
• Magnetic separator inspection
• Separator bar and tube magnet testing
• Grate magnet testing
• Magnetic equipment evaluation
• Quality-control inspections
• Product development
• Engineering and manufacturing
• Research and laboratory work
• Educational demonstrations

What Is a Tesla Meter?

A Tesla meter is an instrument used to measure magnetic flux density or magnetic field strength.

Magnetic flux density is commonly expressed using Tesla (T) in the SI system, while Gauss (G) is another widely used unit for magnetic field measurements.

For reference:

• 1 Tesla = 10,000 Gauss
• 1 Gauss = 0.0001 Tesla

Gauss measurements are frequently used throughout the magnet industry to describe magnetic field strength at a particular location.

What Does a Gauss Meter Measure?

A Gauss meter measures the magnetic field at the location where the measurement is taken.

This is useful when evaluating permanent magnets because magnetic field strength can vary substantially depending on where and how the measurement is performed.

Gauss measurements can be used to:

• Compare magnetic field strength
• Check magnetic products during quality control
• Inspect magnetic separator equipment
• Compare different positions across a magnetic surface
• Evaluate changes in magnetic performance
• Record magnetic field measurements for maintenance or testing
• Support magnet selection and product development

For meaningful comparisons, measurements should be taken using consistent equipment, positioning and test procedures.

Gauss vs Pull Force

Gauss and pull force are different magnetic measurements and should not be used interchangeably.

A Gauss reading describes the magnetic field strength at a particular measurement point.

Pull force describes the mechanical force required to separate a magnet from a particular ferromagnetic target under defined test conditions.

This means a magnet with a particular Gauss reading cannot automatically be assigned a specific pull force based on that measurement alone.

Pull force is influenced by factors such as:

• Magnet geometry
• Contact area
• Steel thickness
• Steel composition
• Surface condition
• Air gaps
• Magnet orientation
• Direction of applied force

The MG-901 should therefore be used to measure magnetic field strength rather than as a direct measurement of lifting or holding capacity.

Testing Permanent Magnets

The MG-901 Tesla Meter can be used when evaluating a range of permanent magnetic products and materials.

Potential applications include testing:

• Neodymium Iron Boron (NdFeB) magnets
• Ferrite or ceramic magnets
• Samarium Cobalt (SmCo) magnets
• Alnico magnets
• Pot magnets
• Magnetic assemblies
• Magnetic separation equipment

Magnetic readings can vary significantly across the surface and surrounding area of a magnet, so the measurement position should be recorded or standardised when results need to be compared.

Magnetic Separator Testing

A Gauss meter is particularly useful for inspecting industrial magnetic separation equipment.

Potential equipment includes:

• Magnetic separator bars
• Magnetic tube magnets
• Magnetic grates
• Magnetic grids
• Hopper magnets
• Magnetic separation assemblies

For example, separator bars may be specified according to a magnetic field reading measured at or near the magnetic surface. A suitable magnetic field meter allows these readings to be checked as part of an inspection or maintenance program.

For repeatable results, testing procedures should define the measurement location, instrument orientation and other relevant test conditions.

Quality Control and Magnet Comparison

The Tesla Meter MG-901 can be incorporated into magnetic quality-control procedures where quantitative measurements are required.

Rather than assessing magnets simply by how strongly they feel when attracted to steel, a magnetic field meter provides a numerical measurement that can be recorded and compared.

This can be useful for:

• Incoming product inspection
• Production quality control
• Batch comparison
• Magnetic separator inspection
• Equipment maintenance
• Product development
• Comparative magnet testing
• Recording magnetic field data

Where measurements are used for formal quality assurance or compliance purposes, an appropriate documented testing and calibration procedure should be established.

Getting Consistent Magnetic Measurements

Magnetic field measurements can change considerably with relatively small changes in measurement position.

For more meaningful comparisons:

• Use a consistent measurement location
• Maintain consistent instrument orientation
• Measure comparable areas of each magnetic product
• Keep measurement conditions consistent
• Record the testing method where repeatability is important
• Follow the manufacturer's operating instructions

Even a small change in distance from the magnet can affect the measured magnetic field because magnetic field strength decreases with distance.

Technical Specifications

• Product Type: Tesla Meter / Gauss Meter
• Model: MG-901
• Alternative Names: Gaussmeter, Magnetic Field Meter, Magnetic Flux Density Meter, Magnet Tester
• Primary Function: Magnetic field measurement
• Measurement Application: Magnetic field strength / magnetic flux density
• Gauss Measurement: Yes
• Suitable For: Permanent magnets and compatible magnetic equipment
• Typical Applications: Magnet testing, magnetic separator inspection, quality control, engineering, manufacturing and research

Industrial and Professional Applications

The MG-901 magnetic field meter can be useful wherever permanent magnets or magnetic equipment need to be inspected, compared or evaluated.

Potential users include:

• Magnet manufacturers and suppliers
• Food and ingredient processors using magnetic separators
• Pharmaceutical manufacturers
• Plastics processors
• Manufacturing facilities
• Engineers
• Maintenance technicians
• Quality-control personnel
• Research facilities
• Educational institutions

For magnetic separation applications, regular magnetic field measurements can form part of an appropriately designed inspection and maintenance program.

Please Note

A Gauss reading measures magnetic field strength and does not directly indicate pull force, lifting capacity or safe working load.

Magnetic measurements depend on factors including the position and orientation of the measurement instrument, distance from the magnet and the magnetic field geometry. Consistent testing procedures are important when comparing results.

The specific measurement range, accuracy, resolution, probe configuration, calibration specification and operating conditions of the MG-901 have not been provided here and should not be assumed. Refer to the supplied product documentation for these specifications before using the instrument for critical measurement or quality-control applications.

Strong magnetic fields may affect pacemakers, medical implants, magnetic storage media and sensitive electronic equipment. Follow appropriate safety procedures when testing powerful permanent magnets.