Recommended separation distances between portable and mobile RF communications equipment and the Portable Oxygen Concentrator
The Portable Oxygen Concentrator is intended for use in an electromagnetic environment in which radiated RF disturbances are controlled. The monitor user can help prevent electromagnetic interference by maintaining a minimum distance between portable and mobile RF communications equipment (transmitters) and the monitor as recommended below, according to the maximum output power of the communications equipment.
| Rated maximum | Separation distance (m) according to frequency of transmitter | |||
| output power of |
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| 150 kHz to 80 MHz | 80 MHz to 800 MHz | 800 MHz to 2.5 GHz | ||
| transmitter (W) | ||||
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| d = 1.2 √P | d = 1.2 √P | d = 2.3 √P | |
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| 0.01 | 0.12 | 0.12 | 0.23 |
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| 0.1 | 0.38 | 0.38 | 0.73 |
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| 1 | 1.2 | 1.2 | 2.3 |
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| 10 | 3.8 | 3.8 | 7.3 |
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| 100 | 12 | 12 | 23 |
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For transmitters rated at a maximum output power not listed above, the recommended separation distance (d) in meters (m) can be estimated using the equation applicable to the frequency of the transmitter, where P is the maximum output power rating of the transmitter in watts (W) according to the transmitter manufacturer.
Note: At 80 MHz and 800 MHz, the separation distance for the higher frequency range applies.
Note: These guidelines may not apply in all situations. Electromagnetic propagation is affected by the absorption and reflection from structures, objects, and people.
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Disclaimer
The information in this document has been carefully examined and is believed to be reliable. Furthermore, Delphi Medical Systems reserves the right to make changes to any products herein to improve readability, function, or design. Delphi Medical Systems does not assume any liability arising out of the application or use of any product or circuit described herein; neither does it cover any license under its patent rights nor the rights of others.