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NuSimplicity
TM
Chair
PN: 2717-256E
EMC Information
Guidance and Manufacturer’s Declaration – Electromagnetic Emissions
The NuSimplicity Chair is intended for use in the electromagnetic environment speci ed below. The customer or the user of the NuSimplicity Chair should
assure that it is used in such an environment.
Immunity Test
IEC 60601 Test
Level
Compliance
Level
Electromagnetic Environment Guidance
Radiated RF
IEC 61000-4-3
Conducted RF
IEC 61000-4-6
3 V/m
80MHz to 2.5 GHz
150 kHz to 80 MHz
3 V/m
3 Vrms
Portable and mobile RF communications equipment should be used no closer to any part of the
equipment, including cables, than the recommended separation distance calculated from the
equation applicable to the frequency of the transmitter.
d = 1.7 √P 80 MHz to 800 MHz
d = 2.3 √P 800 MHz to 2.5 GHz
d = [3.5/V1] √P
where P is the maximum output power rating of the transmitter in watts (W) according to the
transmitter manufacturer and d is the recommended separation distance in meters (m).
Field strengths from xed RF transmitters, as determined by an electromagnetic site survey,
a
should be less than the compliance level in each frequency range.
b
Interference may occur in the vicinity of equipment marked with the following symbol:
NOTE 1: At 80 MHz and 800 MHz, the higher frequency range applies.
NOTE 2: These guidelines may not apply in all situations. Electromagnetic propagation is a ected by absorption and re ection from structures, objects and people.
a. Field strengths from xed transmitters, such as base stations for radio (cellular/cordless) telephones and land mobile radios, amateur radio, AM
and FM radio broadcast and TV broadcast cannot be predicted theoretically with accuracy. To assess the electromagnetic environment due to
xed RF transmitters, an electromagnetic site survey should be considered. If the measured eld strength in the location in which the NuSimplicity
Chair is used exceeds the applicable RF compliance level above, the NuSimplicity Chair should be observed to verify normal operation. If abnormal
performance is observed, additional measures may be necessary, such as reorienting or relocating the NuSimplicity Chair.
b. Over the frequency range 150 kHz to 80 MHz, eld strengths should be less than 3 V/m.
Recommended Separation Distance Between Portable and Mobile
RF Communications Equipment and the Model @ 3Vrms
The NuSimplicity Chair is intended for use in an electromagnetic environment in which radiated RF disturbances are controlled. The customer or
the user of the NuSimplicity Chair can help prevent electromagnetic interference by maintaining a minimum distance between portable and mobile
RF communications equipment (transmitters) and the NuSimplicity Chair as recommended below, according to the maximum output power of the
communications equipment.
Rated maximum output power
of transmitter W
Separation distance according to frequency of transmitter m
150 kHz to 80 MHz 80 MHz to 800 MHz 800 MHz to 2.5 GHz
0.01 0.12 0.12 0.23
0.1 0.34 0.34 0.74
11.71.72.3
10 3.7 3.7 7.4
100 11.7 11.7 23.3
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 rating of the transmitter in watts (W) according to the transmitter
manufacturer.
NOTE 1: At 80 MHz and 800 MHz, the separation distance for the higher frequency range applies.
NOTE 2: These guidelines may not apply in all situations. Electromagnetic propagation is a ected by absorption and re ection from structures, objects
and people.
P
v
d
1
3.5
P
E
d
1
3.5
P
E
d
1
7
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