HoMedics WGNBPA-960BT User Manual - Page 20
Potential For Electromagnetic, Interference
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POTENTIAL FOR ELECTROMAGNETIC INTERFERENCE To avoid inaccurate results caused by electromagnetic interference between electrical and electronic equipment, do not use the device near a cell phone or microwave oven. For most wireless communication devices, it is recommended to maintain a distance of 10.8 feet (3.3m) inorder to avoid electromagnetic interference. This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. FEDERAL COMMUNICATIONS COMMISION COMPLIANCE STATEMENT Changes or modifications to this equipment not expressly approved by the manufacturer could void the user's authority to operate the equipment. This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures: • Reorient or relocate the receiving antenna. • Increase the separation between the equipment and receiver. • Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. • Consult the dealer or an experienced radio/TV technician for help. 37 ELECTROMAGNETIC COMPATIBILITY (EMC) • Guidance and manufacturer's declaration - electromagnetic emissions The device is intended for use in the electromagnetic environments listed below, and should only be used in such environments: Emissions test RF emissions CISPR 11 RF emissions CISPR 11 Harmonic emissions IEC 61000-3-2 Voltage fluctuations/ flicker emissions IEC 61000-3-3 Compliance Group 1 Class B Class A Complies Electromagnetic environment - guidance RF energy is used only to maintain device's operation. Therefore, its RF emissions are so low that it's not likely to cause any interference in nearby electronic equipment. The device is suitable for use in all establishments, including domestic establishments, and those directly connected to the public low-voltage power supply network that supplies buildings used for domestic purposes. • Guidance and manufacturer's declaration - electromagnetic immunity The device is intended for use in the electromagnetic environments listed below, and should only be used in such environments: Immunity test IEC 60601 test level Electrostatic ± 6 kV contact discharge (ESD) ± 8 kV air IEC 61000-4-2 Power frequency (50/60 Hz) magnetic field IEC 61000-4-8 3 A/m Compliance level ± 6 kV contact ± 15 kV air 30A/m Electrical fast transient/burst IEC 61000-4-4 Surge IEC 61000-4-5 ± 2 kV for power supply lines ± 1 kV for input/output lines ± 2 kV for power supply lines ± 1 kV for input/ output lines ± 1 kV line(s) to line(s) ± 2 kV line(s) to earth ± 1 kV line(s) to line(s) ± 2 kV line(s) to earth Electromagnetic environment- guidance The relative humidity should be at least 30 %. Power frequency magnetic fields should be at levels characteristic of a typical location in a typical commercial or hospital environment. I r m) 188 Where I is the current in amperes in a power bus or an appliance wire and r is the recommended separation distance between your device and the power bus or appliance wire, in meters (m). Mains power quality should be that of a typical commercial or hospital environment. Mains power quality should be that of a typical commercial or hospital environment. 38