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E&J GF0600059REVB06 manual Electromagnetic interference EMI from radio wave sources

Models: GF0600059REVB06

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Electromagnetic interference (EMI) from radio wave sources

It is very important that you read this information regarding the possible effects of electromagnetic interference on your Everest & Jennings Metro Power III power wheelchair.

Powered wheelchairs may be susceptible to electromagnetic interference (EMI), which is interfering electromagnetic (EM) energy emitted from sources such as radio stations, TV stations, amateur radio (HAM) transmitters, two-way radios, and cellular telephones. The interference (from radio wave sources) can cause the powered wheelchair to release its brakes, move by itself, or move in unintend- ed directions. It can also permanently damage the powered wheelchair’s control system. The intensity of the interfering EM energy can be measured in volts per meter (V/m). Each powered wheelchair can resist EMI up to a certain intensity. This is called its “immunity level”. The higher the immunity level, the greater the protection. At this time, current technology is capable of achieving at least a 20 V/m immunity level, which would provide useful protection from the more common sources of radi- ated EMI.

This powered wheelchair model has an immunity level of 20 V/m when tested with Integral Control- ler Part Number 90762330.

Be aware that using different components, adding accessories, or modifying the powered wheelchair may change the immunity level.

There are a number of sources of relatively intense electromagnetic fields in the everyday environ- ment. Some of these sources are obvious and easy to avoid. Others are not apparent and exposure is unavoidable. However, we believe that by following the warnings that follow, your risk to EMI exposure will be minimized.

The sources of radiated EMI can be broadly classified into three types:

1)Hand-held portable transceivers (transmitters-receivers) with the antenna mounted directly on the transmitting unit. Examples include: citizens band (CB) radios, “walkie talkies”, security, fire, and police transceivers, cellular telephones, and other personal communication devices.

Note: Some cellular telephones and similar devices transmit signals while they are on, even when not being used;

2)Medium-range mobile transceivers, such as those used in police cars, fire trucks, ambulances, and taxis. These usually have the antenna mounted on the outside of the vehicle; and

3)Long-range transmitters and transceivers, such as commercial broadcast transmitters (radio and TV broadcast antenna towers) and amateur (HAM) radios.

Note: Other types of hand-held devices, such as cordless telephones, laptop computers, AM/FM radios, TV sets, CD players, and cassette players, and small appliances, such as electric shavers and hair dryers, so far as we know, are not likely to cause EMI problems with your powered wheel- chair.

 

 

 

Metro Power III Owner’s Manual

GF0600059RevB06, November 2006



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E&J GF0600059REVB06 manual Electromagnetic interference EMI from radio wave sources
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GF0600059REVB06 specifications

The E&J GF0600059REVB06 is a cutting-edge technology device that has garnered attention in the market due to its myriad features and robust performance characteristics. This product is designed for versatile applications, offering enhanced efficiency and convenience for users across different sectors.

One of the standout features of the E&J GF0600059REVB06 is its advanced performance capabilities. The device is powered by a high-efficiency processor that not only ensures rapid data processing but also incorporates energy-saving mechanisms. This allows the device to perform complex tasks without consuming excessive power, making it an eco-friendly option for users mindful of their energy consumption.

Equipped with state-of-the-art connectivity options, the E&J GF0600059REVB06 allows seamless integration into existing systems. It supports various communication protocols, which facilitate quick data transfer among devices. Whether connecting to a local network or the cloud, users will appreciate the flexibility this functionality offers for both personal and professional applications.

In terms of design, the E&J GF0600059REVB06 exhibits a sleek and ergonomic appearance that is both aesthetically pleasing and functional. Its compact size makes it suitable for spaces where area is limited, allowing for easy placement without sacrificing performance. Additionally, the device is built from durable materials, ensuring longevity and reliability, even in challenging environments.

The user interface of the E&J GF0600059REVB06 is another highlight. Designed with user-friendliness in mind, it features intuitive navigation that allows users to easily access various functions and settings. This simplicity ensures that even users with limited technical knowledge can operate the device efficiently.

Safety and security are paramount in the design of the E&J GF0600059REVB06. The device incorporates multiple layers of security features, protecting it from unauthorized access and data breaches. These include encryption technologies and user authentication protocols, ensuring that sensitive information remains confidential.

Overall, the E&J GF0600059REVB06 stands out in the market as a reliable, feature-rich device that meets the needs of modern users. Its blend of advanced technology, user-oriented design, and robust security features makes it an excellent choice for anyone seeking an efficient solution for their technological requirements. As such, it has become a preferred option in its category, appealing to a wide range of consumers and professionals alike.