Quinton TM55, Руководство пользователя

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A-6 Safety Requirements Cardiac Stress Treadmills User Guide
Guidance and Manufacturer's Declaration - Electromagnetic Immunity
The Cardiac Stress Treadmills are intended for use in the electromagnetic environment specified below. The
customer or the user of the Cardiac Stress Treadmills should assure that they are used in such an
environment.
Immunity test
IEC 60601 test
level
Compliance Level
Electromagnetic environment -
guidance
Conducted RF
IEC 61000-4-6
3 Vrms
150 kHz to 80 MHz 3 V
Portable and mobile RF communications
equipment should be used no closer to
any part of the ST/TM55 or ST/TM65,
including cables, than the recommended
separation distance calculated from the
equation applicable to the frequency of the
transmitter.
Recommended separation distance
Radiated RF
IEC 61000-4-3
3 V/m
80 MHz to 2.5 GHz
3 V/m 80 MHz to 800 MHz
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 meters (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 80 MHz 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.
NOTE 3: Tests were verified with shielded input/output cables only.
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 elec-
tromagnetic environment due to fixed RF transmitters, an electromagnetic site survey should be considered. If the measured field
strength in the location in which the ST/TM55 or ST/TM65 is used exceeds the applicable RF compliance level above, the ST/
TM55 or ST/TM65 should be observed to verify normal operation. If abnormal performance is observed, additional measures may
be necessary, such as reorienting or relocating the ST/TM55 or ST/TM65.
b.Over the frequency range 150 kHz to 80 MHz, field strengths should be less than 3 V/m.
d 1.2 P =
d
1.2
P
=
d 2.3 P =