Potential For Electromagnetic Interference; Electromagnetic Compatibility (Emc) - Walgreens WGNBPA-745 User Manual

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) in order 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.
NOTE: The manufacturer is not responsible for any radio or TV interference
caused by unauthorized modifications to this equipment. Such modifications
could void the user authority to operate the equipment.
NOTE: 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.
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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 Compliance Electromagnetic environment – guidance
RF emissions CISPR 11 Group 1 RF energy is used only to maintain device's operation.
Therefore, its RF emissions are so low that it's not likely to
RF emissions CISPR 11 Class B cause any interference in nearby electronic equipment.
Harmonic emissions IEC Class A The device is suitable for use in all establishments,
61000-3-2 including domestic establishments, and those directly
connected to the public low-voltage power supply network
Voltage fluctuations/ flicker Complies
that supplies buildings used for domestic purposes.
emissions IEC 61000-3-3
• 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 Compliance level
Electrostatic ± 6 kV contact ± 6 kV contact
discharge (ESD) ± 8 kV air ± 8 kV air
IEC 61000-4-2
Power frequency 3 A/m 3 A/m
(50/60 Hz)
magnetic field
IEC 61000-4-8
Electrical fast ± 2 kV for power supply ± 2 kV for power
transient/burst lines supply lines
IEC 61000-4-4 ± 1 kV for input/output ± 1 kV for input/
lines output lines
Surge ± 1 kV line(s) to line(s) ± 1 kV line(s) to
IEC 61000-4-5 line(s)
± 2 kV line(s) to earth ± 2 kV line(s) to
earth
interruptions <5 % UT (>95 % dip in <5 % UT (>95 % dip
and voltage UT) for 0,5 cycle in UT) for 0,5 cycle
variations on 40 % UT (60 % dip in 40 % UT (60 % dip in
power supply UT) for 5 cycles UT) for 5 cycles
input lines 70 % UT (30 % dip in 70 % UT (30 % dip in
IEC 61000-4-11 UT) for 25 cycles UT) for 25 cycles
<5 % UT (>95 % dip in <5 % UT (>95 % dip
UT) for 5 sec in UT) for 5 sec
Electromagnetic environment–
guidance
Floors should be wood, concrete
or ceramic tile. If floors are covered
with synthetic material, the relative
humidity should be at least 30 %.
Power frequency magnetic fields
should be at levels characteristic of
a typical location in a typical com-
mercial or hospital environment.
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.
Mains power quality should be that
of a typical commercial or hospital
environment. If the user of the de-
vice requires continued operation
during power mains interruptions,
it is recommended that the device
be powered from an uninterruptible
power supply or a battery.
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