QRS Opti 24-hour ABPM, Руководство пользователя

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Guidance and manufacturer’s declaration –
electromagnetic immunity
The QRS Opti is intended for use in the electromagnetic environment specified below.
The customer or the user of the QRS Opti should assure that it is used in such an
environment.
Emissions test
IEC 60601
test level
Compliance
level
Electromagnetic environment –
guidance
Conducted RF IEC
61000-4-6
Radiated RF IEC
61000-4-3
N/A
3V/m
80 MHz to
2.5 GHz
N/A
3 V/m
Portable and mobile RF
communications equipment should
be used no closer to any part of
the QRS Opti , including cables,
than the recommended separation
distance calculated from the equation
applicable to the frequency of the
transmitter.
Recommended separation distance
d
= [3.5/V
1
] √
P
d
= [3.5/E
1
] √
P
80MHz to 800MHz
d
= [7/E
1
] √
P
800MHz to 2.5GHz
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.
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 QRS
Opti device is used exceeds the applicable RF compliance level above, the QRS Opti
device should be observed to verify normal operation. If abnormal performance is observed, additional
measures may be necessary, such as re-orienting or relocating the QRS
Opti device.
b
Over the frequency range 150 kHz to 80 MHz, field strengths should be less than 3 V/m.
Recommended separation distances between portable and
mobile RF communications equipment and the QRS
Opti device
The QRS Opti device is intended for use in an electromagnetic environment in which
radiated RF disturbances are controlled. The customer or the user of the QRS Opti
device can help prevent electromagnetic interference by maintaining a minimum
distance between portable and mobile RF communications equipment (transmitters)
and the QRS
Opti device 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
d
= [3.5/V
1
] √
P
80 MHz to 800 MHz
d
= [3.5/V
1
] √
P
800MHz to 2.5GHz
d
= [7/E
1
] √
P
0.01 N/A 0.12 0.23
0.10 N/A 0.38 0.73
1 N/A 1.2 2.3
10 N/A 3.8 7.3
100 N/A 12 23
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 power 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 affected by
absorption and reflection from structures, objects, and people.
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