38.113

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38.113, also known as CENELEC EN 50272-2, is a harmonized technical standard for the prevention of electromagnetic disturbance and immunity in industrial, scientific, and medical (ISM) bands. This means that it sets guidelines for the amount of radio frequency energy (or electrical noise) that an industrial, scientific, or medical device can generate while still keeping it safe from interference with other devices and pieces of equipment.

It also helps to ensure the safety of people around these devices by preventing them from becoming overloaded or damaged due to interference. This technical standard is important because it sets the minimum requirements for the industrial, scientific, and medical (ISM) bands in terms of their electromagnetic environment. It also ensures that the surrounding environment does not become overburdened with electromagnetic interference.

The 38.113 application field covers a spectrum of applications from telemetry to RFID, from radio waves to microwaves, and from industrial automation to medical instrumentation. It can also be applied to any device that uses RF energy to communicate, measure, or control any process. In addition, 38.113 provides specific guidelines and performance requirements regarding immunity and immunity testing for wireless systems.

The 38.113 standard also addresses the topic of innovation in electromagnetic compatibility for new technologies, technologies without immunity requirements, and off-site products that are connected to other products with immunity requirements. It also covers topics such as field emission and radiation, and the effects of switching transformers on immunity.

The working principle of 38.113 involves testing the emission levels of a device, as well as its immunity to interference from other devices. During emission testing, a device is tested for its possible emissions in the frequency range of 300kHz to 3 GHz. The device is evaluated by measuring how much electromagnetic energy is being transmitted from the device. Then, it is tested against interference emitted from other devices, such as mobile phones, bluetooth, and wireless network devices.

During immunity testing, the device is evaluated for the maximum amount of interference that it can accept without being affected. This process involves exposing the device to a specified level of interference to determine how much interference the device can tolerate before it begins to experience problems with its performance. This helps to guarantee that the device will be able to operate properly in an environment that is home to a number of wireless devices.

38.113 is an important technical standard for ensuring the proper functioning of industrial, scientific, and medical devices, as well as their interaction with one another in the same electromagnetic environment. It is important to adhere to this standard in order to ensure that the surrounding environment does not become overburdened with electromagnetic energy and that the devices function as intended.

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