Manuals / Quantum / Baby / High Chair

Quantum 1470 I . E M I / R F, Frequently Asked Questions FAQs, Where do radio waves come from?

Models: 1470 1400 1420

1 47
Download 47 pages 20.06 Kb
Page 13
Image 13

I I I . E M I / R F I

EMI/RFI

Laboratory tests performed by the Food and Drug Administration (FDA) have shown that radio waves can cause unintended motion of power chairs. Radio waves are a form of electromagnetic energy. When this energy adversely affects the operation of an electronic device, it is called Electromagnetic Interference (EMI) or Radio Frequency Interference (RFI).

WARNING! Radio waves may interfere with the control of power chairs.

Frequently Asked Questions (FAQs)

The following FAQs summarize what you should know about EMI/RFI. Use this information to minimize the risk that EMI/ RFI will affect your power chair.

Where do radio waves come from?

Radio waves are emitted from the antennas of cellular phones, mobile two-way radios (such as walkie-talkies), radio stations, TV stations, amateur radio (HAM) transmitters, wireless computer links, microwave sources, and paging transmitters. Radio waves are a form of electromagnetic energy (EM). Because electromagnetic energy is more intense closer to the transmitting antenna (source of emission), the EM fields from two-way radios are of special concern to power chair users.

If my power chair is affected by EMI/RFI, what kind of motion should I expect?

This is hard to predict. It would depend on a number of factors:

νStrength of the radio waves

νConstruction of the power chair

νPosition of the power chair (whether it is on level ground or on an incline)

νWhether or not the power chair is in motion

An affected power chair’s movement can be erratic. It may move by itself or come to a sudden stop. Furthermore, it is possible for EMI/RFI to unexpectedly release the brakes on a power chair. Some intense sources of EMI/RFI can even damage the control system of the Power chair.

Is there any way to know for sure whether radio waves are responsible forthe unintended motion of my power chair? Unfortunately, interference from radio wave sources may be difficult to recognize, since the signals from these sources are invisible and may be intermittent. However, the FDA recommends that you report all incidents of unintended motion or brake release to the power chair manufacturer and, if possible, note whether there was a radio wave source nearby at the time of the incident.

Has anyone been hurt from erratic, unintended motion of power chairs?

The FDA has reports of injuries that resulted from the apparent uncontrolled motion of power chairs. However, it is unclear how many of these incidents were actually caused by radio wave interference.

Are all power chairs susceptible to EMI/RFI?

Each make and model of chair differs in its ability to resist electromagnetic interference. That is, each has a particular level of “immunity” to interference, measured in volts per meter (Vm). A higher immunity level offers greater protection. In other words, a power chair with a high immunity level is less likely to be affected by a strong radio source than one with a low immunity level.

Quantum Jazzy 1400 Series Rev C Feb 04

www.pridemobility.com

15

Page 12 Page 14
Page 13
Image 13
Quantum 1470, 1420, 1400 manual I . E M I / R F, Frequently Asked Questions FAQs, Where do radio waves come from?
Page 12 Page 14

1470, 1400, 1420 specifications

The Quantum 6000 XL, 1650, and 1420 are advanced models designed for high-performance applications, showcasing cutting-edge technologies and remarkable features. These machines are engineered to meet the demands of various industries, providing efficiency and precision in their operations.

Starting with the Quantum 6000 XL, this model stands out due to its enhanced processing capabilities, allowing it to handle complex tasks with ease. It is equipped with a high-speed processor and a robust memory architecture, enabling seamless multitasking and processing of large data sets. The XL version features a larger work area, making it ideal for projects that require extensive space and resources. Its advanced cooling system ensures optimal performance during prolonged use, minimizing thermal throttling and maximizing productivity.

The Quantum 1650 model is designed for versatility, offering a balance between performance and resource management. It incorporates energy-efficient technologies that lower operational costs without compromising output quality. With its intuitive user interface, operators can easily navigate through features and settings, enhancing workflow and reducing the learning curve. The 1650 is also equipped with modular components that can be upgraded or replaced, ensuring longevity and adaptability to future technological advancements.

Meanwhile, the Quantum 1420 model is tailored for compact environments where space is a premium. Despite its smaller footprint, it boasts powerful functionalities that rival larger machines. Features such as precision sensors and advanced software algorithms allow for accurate performance monitoring, ensuring that results consistently meet high standards. The 1420 is optimized for quick setup and teardown, making it a favorite for jobs that require agility and speed.

Common to all three models is their commitment to connectivity and integration. Equipped with multiple communication interfaces, they can seamlessly connect with various devices and networks, allowing for real-time data transfer and remote monitoring. Moreover, their compatibility with industry-standard software enhances their usability across different platforms.

In conclusion, the Quantum 6000 XL, 1650, and 1420 represent the forefront of technological innovation, each tailored to specific needs while sharing a foundation of robust performance, efficiency, and connectivity. These models are tailored for industries looking to leverage advanced machinery to boost productivity and operational efficiency.