Magnetic Field Detectors

Know More About Triplett Magnetic Field Tester

What is a magnetic field tester?

Electrical appliances and equipment produce electromagnetic emissions whenever they are put to use. EMF has been a key concern for people due to its ill effects. A magnetic field tester is a device that is designed to measure the amount of electromagnetic, magnetic, and electrical exposure that a device emits. The device measures low frequencies, static fields, and radiofrequency fields. The EMF exposure limit is set in different scenarios by industry regulatory bodies. Magnetic field testers or EMF detectors are used to measure these levels of EMF exposure and compare them with reference levels.

How does an EMF detector work?

EMF detectors are fitted with various sensitive components that can detect fluctuations in the magnetic and electrical energy in a particular area at any given point in time. The readings of this fluctuation enable users to detect the issues in the electrical wiring in the area and power lines. This method helps minimize EMF exposure and improve electrical infrastructure in manufacturing sites. With the increasing use of electronic devices, EMF exposure has grown tremendously, thus, the demand for EMD detectors has grown, too.

What is a normal EMF level?

The EMF levels are enforced at the national, local, and global levels by different organizations. On the global scale, the level of EMF is decided by the International Commission on Non-Ionizing Radiation Protection (ICNIRP), which is an NGO recognized by the World Health Organization. In 2020, WHO published the ICNIRP guidelines on limiting the maximum EMF exposure from 100 kHz to 300 GHz.  In the US, the Environmental Protection Agency (EPA) regulates the EMF exposure recommendations by following the ICNIRP guidelines. In addition to this, various governmental agencies are also responsible for regulating the EMF exposure of different electronic equipment. For instance, the Federal Communications Commission (FCC) sets the limit of exposure for cell phones and cell phone towers, smart meters; EMF exposure regulation for nuclear power stations is regulated by multiple agencies including EPA, the U.S Nuclear Regulatory Commission (NRC), and the Federal Emergency Management Agency (FEMA), and workplace EMF exposure is regulated by the Health and Safety Authority (HSA).  
 

What are the precautions to take while using magnetic field meters?

Our EMF readers feature safety-centric designs, but you need to take the following precautions while using them.

• Read and fully understand the operating instructions before using it.
• Test the detector on a known live source before using it.
• Do not use the EMF meter if it appears to be tampered with or damaged.
• Do not use it to detect voltages higher than recommended.
• Always practice caution while measuring 30V AC and higher voltages.
• Replace the batteries if they show low battery indication.
• Use a soft dry cloth for cleaning the device.
• This instrument is designed for use in a pollution degree 2 environment.

What are the applications of an EMF Meter?

Our EMF Meters are used to measure magnetic field produced from the following electrical equipment:

• Power lines
• Microwave ovens
• Air conditioners
• Refrigerators
• Computers
• Fans
• Hair dryers
• Thermostats
• Doorbell circuits
• Video surveillance cameras
• Electrically controlled solenoid valves in machines, vehicles, and oil burners
• Audio speaker coils

How does an EMF detector work?

An EMF detector or magnetic field tester checks and measures the magnetic field in an area. This magnetic field reader has become an essential device because of excess radiation around us, produced by so many electronic gadgets and appliances we use on a daily basis even in homes, aside from industries and offices. This includes cellphones, wireless connectivity routers, and even kitchen appliances such as microwave ovens. This electromagnetic field detector helps identify wiring issues, safe levels of radiation, and functional issues of electronic devices by measuring the amount of radiation and if that is causing these issues. Triplett offers mainly two types of magnetic field meters- one that measures radiation between certain frequency ranges, and can measure radiation in extremely low frequency range starting from 30 Hz onwards. Some models have analyzers too. You can select the frequency range, measure radiation, and analyze it. In the second type, you have a simple pen-like probe that is a non-contact magnetic field meter. These have dual AC voltage ranges and high sensitivity for low voltage detection. These magnetic field testers are quite easy to use with a push-button menu that is easy to understand as well as a display screen. You simply need to hold this device in the area, switch it on, and select the frequency range.

What is extremely low frequency magnetic field?

Extremely low frequency ranges from 3 to 30 Hz, and is created by lightning or other changes in the earth’s magnetic field. Designated as ELF by the International Telecommunication Union, these are radio waves used in very specific types of applications such as certain communication systems, especially under water. These radio waves can penetrate sea water and hence used in submarines or other diving equipment for communication. Triplett offers magnetic field detectors that can detect an extremely low frequency magnetic field around 30Hz.

What is high-frequency magnetic field?

These magnetic fields have frequencies ranging from 100kHz onwards. They go as high as 300gHz and beyond. A high amount of magnetic coupling takes place in these frequency ranges. High-frequency magnetic fields produce small waves and can be radiated by antennas. Hence, they find application in modern communication technologies such as Wi-Fi internet, smartphones, televisions, and so on. High-frequency magnetic field is also used in short range communication devices and technologies such as Bluetooth and NFC. Triplett offers magnetic field detectors that can determine high range frequencies.

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