Cosmed Quark CPET, User Manual

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84 - Appendix - EMC
Guidance and Manufacturer’s Declaration - Electromagnetic Immunity
The device is intended for use in the electromagnetic environment specified below. The customer or the user of the device should assure that it
is used in such an environment.
Immunity test Test level
IEC 60601-1
Compliance level Electromagnetic environment – guidance
Conducted RF
IEC 61000-4-6
Radiated RF
IEC 61000-4-3
3 Veff
150 kHz to
80 MHz
3 V/m
80 MHz to
2.5 GHz
3 V
3 V/m
Portable and mobile RF communications equipment should be
used no closer to any part of the device, including cables, than
the recommended separation distance calculated from the
equation applicable to the frequency of the transmitter
Recommended separation distance
d=1.17
P
d=1.17
P
80 MHz to 800 MHz
d=2.33
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:
Notes:
(1) At 80 MHz, the higher frequency range applies.
(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, an electromagnetic site survey should be considered. If the measured field strength in the location in which
the device is used exceeds the applicable RF compliance level above, the device should be observed to verify normal operation. If abnormal
performance is observed, additional measures may be necessary, such as reorienting or relocating the device.
b Over the frequency range 150 kHz to 80 MHz, field strengths should be less than 3 V/m