Nustep T4 - RF Immunity and Separation Distances

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Guidance and manufacturer’s declaration – electromagnetic immunity
Guidance and manufacturer’s declaration – electromagnetic immunity
The NuStep
®
TRS 4000 Recumbent Cross Trainer is intended for use in the electromagnetic environment specified
below. The customer or user of the NuStep
®
TRS 4000 Recumbent Cross Trainer should assure that it is used in
such an environment.
Immunity test IEC 60601 test level
Compliance
level
Electromagnetic environment – guidance
Conducted RF
IEC 61000-4-6
Radiated RF
IEC 61000-4-3
3 Vrms
150 kHz to 80 MHz
3 V/m
80 MHz to 2,5 GHz
3 Vrms
3 V/m
Portable and mobile RF communications equipment
should be used no closer to any part of the NuStep
®
TRS 4000 Recumbent Cross Trainer, including
cables, than the recommended separation distance
calculated from the equation applicable to the
frequency of the transmitter.
Recommended separation distance
d = 1,2
P
d = 1,2
P
80 MHz to 800 MHz
d = 2,3
P
800 MHz to 2.5 GHz
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 metres (m).
Field strengths from fixed 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 80MHz and 800 MHz, the higher frequency range applies.
NOTE 2 These guidelines may not apply in all situations. Electromagnetic propagation is affected by absorption and
reflection from structures, objects and people.
A
Field strengths from fixed 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 fixed RF transmitters, and electromagnetic site survey
should be considered. If the measured field strength in the location in which the NuStep
®
TRS 4000 Recumbent
Cross Trainer is used exceeds the applicable RF compliance level above, the NuStep
®
TRS 4000 Recumbent Cross
Trainer should be observed to verify normal operation. If abnormal operation performance is observed, additional
measures may be necessary, such as reorienting or relocating the NuStep
®
TRS 4000 Recumbent Cross Trainer.
B
Over the frequency range 150 kHz to 80 MHz, field strengths should be less than [V
1
] V/m.